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cosmopolitan/libc/calls/issetugid.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/intrin/_getauxval.internal.h"
#include "libc/intrin/strace.internal.h"
#include "libc/sysv/consts/auxv.h"
/**
* Determines if process is tainted.
*
* This function returns 1 if process was launched as a result of an
* execve() call on a binary that had the setuid or setgid bits set.
* FreeBSD defines tainted as including processes that changed their
* effective user / group ids at some point.
*
* @return always successful, 1 if yes, 0 if no
*/
int issetugid(void) {
int rc;
if (IsLinux()) {
rc = !!_getauxval(AT_SECURE).value;
} else if (IsMetal()) {
rc = 0;
} else {
rc = sys_issetugid();
}
STRACE("issetugid() â %d", rc);
return rc;
}
| 2,628 | 48 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/timespec_sub.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2022 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/struct/timespec.h"
/**
* Subtracts two nanosecond timestamps.
*/
struct timespec timespec_sub(struct timespec a, struct timespec b) {
a.tv_sec -= b.tv_sec;
if (a.tv_nsec < b.tv_nsec) {
a.tv_nsec += 1000000000;
a.tv_sec--;
}
a.tv_nsec -= b.tv_nsec;
return a;
}
| 2,138 | 33 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/ioctl_tiocswinsz-nt.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/struct/termios.h"
#include "libc/calls/struct/winsize.h"
#include "libc/calls/syscall_support-nt.internal.h"
#include "libc/nt/console.h"
#include "libc/str/str.h"
#include "libc/sysv/errfuns.h"
textwindows int ioctl_tiocswinsz_nt(int fd, const struct winsize *ws) {
uint32_t mode;
struct NtCoord coord;
if (!ws) return efault();
if (!__isfdkind(fd, kFdFile)) return ebadf();
if (!GetConsoleMode(__getfdhandleactual(fd), &mode)) return enotty();
coord.X = ws->ws_col;
coord.Y = ws->ws_row;
if (!SetConsoleScreenBufferSize(__getfdhandleactual(fd), coord))
return __winerr();
return 0;
}
| 2,529 | 40 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/mkfifo.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/strace.internal.h"
#include "libc/nt/ipc.h"
#include "libc/sysv/consts/at.h"
#include "libc/sysv/consts/s.h"
#include "libc/sysv/errfuns.h"
#define NT_PIPE_PATH_PREFIX u"\\\\.\\pipe\\"
/**
* Creates named pipe.
*
* @param mode is octal, e.g. 0600 for owner-only read/write
* @asyncsignalsafe
*/
int mkfifo(const char *pathname, unsigned mode) {
// TODO(jart): Windows?
int e, rc;
if (IsAsan() && !__asan_is_valid_str(pathname)) {
rc = efault();
} else {
e = errno;
rc = sys_mkfifo(pathname, mode);
if (rc == -1 && rc == ENOSYS) {
errno = e;
rc = sys_mknod(pathname, mode | S_IFIFO, 0);
if (rc == -1 && rc == ENOSYS) {
errno = e;
rc = sys_mknodat(AT_FDCWD, pathname, mode | S_IFIFO, 0);
}
}
}
STRACE("mkfifo(%#s, %#o) â %d% m", pathname, mode, rc);
return rc;
}
| 2,863 | 58 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/readlinkat-nt.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2021 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/syscall_support-nt.internal.h"
#include "libc/intrin/strace.internal.h"
#include "libc/intrin/tpenc.h"
#include "libc/mem/alloca.h"
#include "libc/nt/createfile.h"
#include "libc/nt/enum/creationdisposition.h"
#include "libc/nt/enum/fileflagandattributes.h"
#include "libc/nt/enum/fsctl.h"
#include "libc/nt/enum/io.h"
#include "libc/nt/files.h"
#include "libc/nt/runtime.h"
#include "libc/nt/struct/reparsedatabuffer.h"
#include "libc/runtime/stack.h"
#include "libc/str/str.h"
#include "libc/str/utf16.h"
#include "libc/sysv/errfuns.h"
textwindows ssize_t sys_readlinkat_nt(int dirfd, const char *path, char *buf,
size_t bufsiz) {
int64_t h;
ssize_t rc;
uint64_t w;
wint_t x, y;
volatile char *memory;
uint32_t i, j, n, mem;
char16_t path16[PATH_MAX], *p;
struct NtReparseDataBuffer *rdb;
if (__mkntpathat(dirfd, path, 0, path16) == -1) return -1;
mem = 16384;
memory = alloca(mem);
CheckLargeStackAllocation(memory, mem);
rdb = (struct NtReparseDataBuffer *)memory;
if ((h = CreateFile(path16, 0, 0, 0, kNtOpenExisting,
kNtFileFlagOpenReparsePoint | kNtFileFlagBackupSemantics,
0)) != -1) {
if (DeviceIoControl(h, kNtFsctlGetReparsePoint, 0, 0, rdb, mem, &n, 0)) {
if (rdb->ReparseTag == kNtIoReparseTagSymlink) {
i = 0;
j = 0;
n = rdb->SymbolicLinkReparseBuffer.PrintNameLength / sizeof(char16_t);
p = (char16_t *)((char *)rdb->SymbolicLinkReparseBuffer.PathBuffer +
rdb->SymbolicLinkReparseBuffer.PrintNameOffset);
if (n >= 3 && isalpha(p[0]) && p[1] == ':' && p[2] == '\\') {
p[1] = p[0];
p[0] = '/';
p[2] = '/';
}
while (i < n) {
x = p[i++] & 0xffff;
if (!IsUcs2(x)) {
if (i < n) {
y = p[i++] & 0xffff;
x = MergeUtf16(x, y);
} else {
x = 0xfffd;
}
}
if (x < 0200) {
if (x == '\\') {
x = '/';
}
w = x;
} else {
w = _tpenc(x);
}
do {
if (j < bufsiz) {
buf[j++] = w;
}
w >>= 8;
} while (w);
}
rc = j;
} else {
NTTRACE("sys_readlinkat_nt() should have kNtIoReparseTagSymlink");
rc = einval();
}
} else {
rc = -1;
}
CloseHandle(h);
} else {
rc = __fix_enotdir(-1, path16);
}
return rc;
}
| 4,421 | 105 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/releasefd.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2021 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/internal.h"
#include "libc/intrin/atomic.h"
#include "libc/macros.internal.h"
#include "libc/str/str.h"
// really want to avoid locking here so close() needn't block signals
void __releasefd(int fd) {
int f1, f2;
if (!(0 <= fd && fd < g_fds.n)) return;
bzero(g_fds.p + fd, sizeof(*g_fds.p));
f1 = atomic_load_explicit(&g_fds.f, memory_order_relaxed);
do {
f2 = MIN(fd, f1);
} while (!atomic_compare_exchange_weak_explicit(
&g_fds.f, &f1, f2, memory_order_release, memory_order_relaxed));
}
| 2,370 | 35 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/ioctl_tcsets-nt.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/internal.h"
#include "libc/calls/struct/metatermios.internal.h"
#include "libc/calls/termios.internal.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/strace.internal.h"
#include "libc/nt/console.h"
#include "libc/nt/enum/consolemodeflags.h"
#include "libc/nt/enum/version.h"
#include "libc/nt/version.h"
#include "libc/sysv/consts/o.h"
#include "libc/sysv/consts/termios.h"
#include "libc/sysv/errfuns.h"
textwindows int ioctl_tcsets_nt(int ignored, uint64_t request,
const struct termios *tio) {
int64_t in, out;
bool32 ok, inok, outok;
uint32_t inmode, outmode;
inok = GetConsoleMode((in = __getfdhandleactual(0)), &inmode);
outok = GetConsoleMode((out = __getfdhandleactual(1)), &outmode);
if (inok | outok) {
if (inok) {
if (request == TCSETSF) {
FlushConsoleInputBuffer(in);
}
inmode &=
~(kNtEnableLineInput | kNtEnableEchoInput | kNtEnableProcessedInput);
inmode |= kNtEnableWindowInput;
if (tio->c_lflag & ICANON) {
inmode |= kNtEnableLineInput;
}
if (tio->c_lflag & ECHO) {
/*
* kNtEnableEchoInput can be used only if the ENABLE_LINE_INPUT mode
* is also enabled. --Quoth MSDN
*/
inmode |= kNtEnableEchoInput | kNtEnableLineInput;
}
if (tio->c_lflag & (IEXTEN | ISIG)) {
inmode |= kNtEnableProcessedInput;
}
if (IsAtLeastWindows10()) {
inmode |= kNtEnableVirtualTerminalInput;
}
ok = SetConsoleMode(in, inmode);
NTTRACE("SetConsoleMode(%p, %s) â %hhhd", in,
DescribeNtConsoleInFlags(inmode), ok);
}
if (outok) {
outmode &= ~(kNtDisableNewlineAutoReturn);
outmode |= kNtEnableProcessedOutput;
if (!(tio->c_oflag & ONLCR)) {
outmode |= kNtDisableNewlineAutoReturn;
}
if (IsAtLeastWindows10()) {
outmode |= kNtEnableVirtualTerminalProcessing;
}
ok = SetConsoleMode(out, outmode);
NTTRACE("SetConsoleMode(%p, %s) â %hhhd", out,
DescribeNtConsoleOutFlags(outmode), ok);
}
return 0;
} else {
return enotty();
}
}
| 4,038 | 88 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/access.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/sysv/consts/at.h"
/**
* Checks if effective user can access path in particular ways.
*
* This is equivalent to saying:
*
* faccessat(AT_FDCWD, path, mode, 0);
*
* @param path is a filename or directory
* @param mode can be R_OK, W_OK, X_OK, F_OK
* @return 0 if ok, or -1 w/ errno
* @see faccessat() for further documentation
* @asyncsignalsafe
*/
int access(const char *path, int mode) {
return faccessat(AT_FDCWD, path, mode, 0);
}
| 2,333 | 38 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/isatty.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/struct/winsize.h"
#include "libc/calls/syscall-nt.internal.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/calls/syscall_support-sysv.internal.h"
#include "libc/errno.h"
#include "libc/intrin/strace.internal.h"
#include "libc/sysv/consts/termios.h"
#include "libc/sysv/errfuns.h"
/**
* Tells if file descriptor is a terminal.
*
* @param fd is file descriptor
* @return 1 if is terminal, otherwise 0 w/ errno
* @raise EBADF if fd isn't a valid file descriptor
* @raise ENOTTY if fd is something other than a terminal
* @raise EPERM if pledge() was used without tty
*/
bool32 isatty(int fd) {
int e;
bool32 res;
struct winsize ws;
if (__isfdkind(fd, kFdZip)) {
enotty();
res = false;
} else if (IsWindows()) {
res = sys_isatty_nt(fd);
} else if (IsMetal()) {
res = sys_isatty_metal(fd);
} else if (!sys_ioctl(fd, TIOCGWINSZ, &ws)) {
res = true;
} else {
res = false;
if (errno != EBADF && errno != EPERM) {
enotty();
}
}
STRACE("isatty(%d) â %hhhd% m", fd, res);
return res;
}
| 2,982 | 61 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/utimensat-nt.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/internal.h"
#include "libc/calls/syscall_support-nt.internal.h"
#include "libc/fmt/conv.h"
#include "libc/nt/createfile.h"
#include "libc/nt/enum/accessmask.h"
#include "libc/nt/enum/creationdisposition.h"
#include "libc/nt/enum/fileflagandattributes.h"
#include "libc/nt/enum/filesharemode.h"
#include "libc/nt/files.h"
#include "libc/nt/runtime.h"
#include "libc/nt/synchronization.h"
#include "libc/sysv/consts/at.h"
#include "libc/sysv/consts/utime.h"
#include "libc/sysv/errfuns.h"
#include "libc/time/time.h"
textwindows int sys_utimensat_nt(int dirfd, const char *path,
const struct timespec ts[2], int flags) {
int i, rc;
int64_t fh, closeme;
uint16_t path16[PATH_MAX];
struct NtFileTime ft[2], *ftp[2];
if (path) {
if (__mkntpathat(dirfd, path, 0, path16) == -1) return -1;
if ((fh = CreateFile(path16, kNtFileWriteAttributes, kNtFileShareRead, NULL,
kNtOpenExisting, kNtFileAttributeNormal, 0)) != -1) {
closeme = fh;
} else {
return __winerr();
}
} else if (__isfdkind(dirfd, kFdFile)) {
fh = g_fds.p[dirfd].handle;
closeme = -1;
} else {
return ebadf();
}
if (!ts || ts[0].tv_nsec == UTIME_NOW || ts[1].tv_nsec == UTIME_NOW) {
GetSystemTimeAsFileTime(ft);
}
if (ts) {
for (i = 0; i < 2; ++i) {
if (ts[i].tv_nsec == UTIME_NOW) {
ftp[i] = ft;
} else if (ts[i].tv_nsec == UTIME_OMIT) {
ftp[i] = NULL;
} else {
ft[i] = TimeSpecToFileTime(ts[i]);
ftp[i] = &ft[i];
}
}
} else {
ftp[0] = ft;
ftp[1] = ft;
}
if (SetFileTime(fh, NULL, ftp[0], ftp[1])) {
rc = 0;
} else {
rc = __winerr();
}
if (closeme != -1) {
CloseHandle(fh);
}
return rc;
}
| 3,632 | 87 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/execl.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/mem/alloca.h"
#include "libc/runtime/runtime.h"
/**
* Executes program, with current environment.
*
* The current process is replaced with the executed one.
*
* @param prog will not be PATH searched, see execlp()
* @param arg[0] is the name of the program to run
* @param arg[1,n-2] optionally specify program arguments
* @param arg[n-1] is NULL
* @return doesn't return on success, otherwise -1 w/ errno
* @asyncsignalsafe
* @vforksafe
*/
int execl(const char *exe, const char *arg, ... /*, NULL*/) {
int i;
char **argv;
va_list va, vb;
va_copy(vb, va);
va_start(va, arg);
for (i = 0; va_arg(va, const char *); ++i) donothing;
va_end(va);
argv = alloca((i + 2) * sizeof(char *));
va_start(vb, arg);
argv[0] = arg;
for (i = 1;; ++i) {
if (!(argv[i] = va_arg(vb, const char *))) break;
}
va_end(vb);
return execv(exe, argv);
}
| 2,752 | 53 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/lstat.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/struct/stat.h"
#include "libc/sysv/consts/at.h"
/**
* Returns information about file, w/o traversing symlinks.
* @asyncsignalsafe
*/
int lstat(const char *pathname, struct stat *st) {
return fstatat(AT_FDCWD, pathname, st, AT_SYMLINK_NOFOLLOW);
}
| 2,110 | 29 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/writevuninterruptible.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2021 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/struct/iovec.h"
#include "libc/calls/struct/iovec.internal.h"
#include "libc/errno.h"
#include "libc/sock/sock.h"
ssize_t WritevUninterruptible(int fd, struct iovec *iov, int iovlen) {
ssize_t rc;
size_t wrote;
do {
if ((rc = writev(fd, iov, iovlen)) != -1) {
wrote = rc;
do {
if (wrote >= iov->iov_len) {
wrote -= iov->iov_len;
++iov;
--iovlen;
} else {
iov->iov_base = (char *)iov->iov_base + wrote;
iov->iov_len -= wrote;
wrote = 0;
}
} while (wrote);
} else if (errno != EINTR) {
return -1;
}
} while (iovlen);
return 0;
}
| 2,515 | 47 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/gettemppatha-flunk.S | /*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-â
âvi: set et ft=asm ts=8 tw=8 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/macros.internal.h"
// Calls GetTempPathA() w/ different API.
//
// @see GetSystemDirectoryA(), GetWindowsDirectoryA()
GetTempPathA_flunk:
xchg %rcx,%rdx
jmp *__imp_GetTempPathA(%rip)
.endfn GetTempPathA_flunk,globl,hidden
| 2,077 | 28 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/getresgid.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/intrin/strace.internal.h"
/**
* Gets real, effective, and "saved" group ids.
*
* @param real receives real user id, or null to do nothing
* @param effective receives effective user id, or null to do nothing
* @param saved receives saved user id, or null to do nothing
* @return 0 on success or -1 w/ errno
* @see setresuid()
*/
int getresgid(uint32_t *real, uint32_t *effective, uint32_t *saved) {
int rc, gid;
if (IsWindows()) {
gid = getgid();
if (real) *real = gid;
if (effective) *effective = gid;
if (saved) *saved = gid;
rc = 0;
} else if (saved) {
rc = sys_getresgid(real, effective, saved);
} else {
if (real) *real = sys_getgid();
if (effective) *effective = sys_getegid();
rc = 0;
}
STRACE("getresgid([%d], [%d], [%d]) â %d% m", real ? *real : 0,
effective ? *effective : 0, saved ? *saved : 0, rc);
return rc;
}
| 2,842 | 52 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/readv.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/cp.internal.h"
#include "libc/calls/internal.h"
#include "libc/calls/struct/iovec.h"
#include "libc/calls/struct/iovec.internal.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/errno.h"
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/kprintf.h"
#include "libc/intrin/likely.h"
#include "libc/intrin/strace.internal.h"
#include "libc/intrin/weaken.h"
#include "libc/sock/internal.h"
#include "libc/sysv/errfuns.h"
#include "libc/zipos/zipos.internal.h"
/**
* Reads data to multiple buffers.
*
* This is the same thing as read() except it has multiple buffers.
* This yields a performance boost in situations where it'd be expensive
* to stitch data together using memcpy() or issuing multiple syscalls.
* This wrapper is implemented so that readv() calls where iovlen<2 may
* be passed to the kernel as read() instead. This yields a 100 cycle
* performance boost in the case of a single small iovec.
*
* @return number of bytes actually read, or -1 w/ errno
* @cancellationpoint
* @restartable
*/
ssize_t readv(int fd, const struct iovec *iov, int iovlen) {
ssize_t rc;
BEGIN_CANCELLATION_POINT;
if (fd >= 0 && iovlen >= 0) {
if (IsAsan() && !__asan_is_valid_iov(iov, iovlen)) {
rc = efault();
} else if (fd < g_fds.n && g_fds.p[fd].kind == kFdZip) {
rc = _weaken(__zipos_read)(
(struct ZiposHandle *)(intptr_t)g_fds.p[fd].handle, iov, iovlen, -1);
} else if (!IsWindows() && !IsMetal()) {
if (iovlen == 1) {
rc = sys_read(fd, iov[0].iov_base, iov[0].iov_len);
} else {
rc = sys_readv(fd, iov, iovlen);
}
} else if (fd >= g_fds.n) {
rc = ebadf();
} else if (IsMetal()) {
rc = sys_readv_metal(g_fds.p + fd, iov, iovlen);
} else {
rc = sys_readv_nt(g_fds.p + fd, iov, iovlen);
}
} else if (fd < 0) {
rc = ebadf();
} else {
rc = einval();
}
END_CANCELLATION_POINT;
STRACE("readv(%d, [%s], %d) â %'ld% m", fd, DescribeIovec(rc, iov, iovlen),
iovlen, rc);
return rc;
}
| 3,981 | 84 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/sigtimedwait.internal.h | #ifndef COSMOPOLITAN_LIBC_CALLS_SIGTIMEDWAIT_INTERNAL_H_
#define COSMOPOLITAN_LIBC_CALLS_SIGTIMEDWAIT_INTERNAL_H_
#include "libc/calls/struct/siginfo-meta.internal.h"
#include "libc/calls/struct/sigset.h"
#include "libc/calls/struct/timespec.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
int sys_sigtimedwait(const sigset_t *, union siginfo_meta *,
const struct timespec *, size_t) _Hide;
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_CALLS_SIGTIMEDWAIT_INTERNAL_H_ */
| 558 | 15 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/tcsendbreak.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2021 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/calls/syscall_support-nt.internal.h"
#include "libc/calls/termios.h"
#include "libc/dce.h"
#include "libc/intrin/strace.internal.h"
#include "libc/nt/comms.h"
#include "libc/sysv/consts/termios.h"
#include "libc/sysv/errfuns.h"
static int sys_tcsendbreak_bsd(int fd) {
if (sys_ioctl(fd, TIOCSBRK, 0) == -1) return -1;
usleep(400000);
if (sys_ioctl(fd, TIOCCBRK, 0) == -1) return -1;
return 0;
}
static textwindows int sys_tcsendbreak_nt(int fd) {
if (!__isfdopen(fd)) return ebadf();
if (!TransmitCommChar(g_fds.p[fd].handle, '\0')) return __winerr();
return 0;
}
/**
* Sends break.
*
* @param fd is file descriptor of tty
* @param duration of 0 sends a break for 0.25-0.5 seconds, and other
* durations are treated the same by this implementation
* @raise EBADF if `fd` isn't an open file descriptor
* @raise ENOTTY if `fd` is open but not a teletypewriter
* @raise EIO if process group of writer is orphoned, calling thread is
* not blocking `SIGTTOU`, and process isn't ignoring `SIGTTOU`
* @raise ENOSYS on bare metal
* @asyncsignalsafe
*/
int tcsendbreak(int fd, int duration) {
int rc;
if (IsMetal()) {
rc = enosys();
} else if (IsBsd()) {
rc = sys_tcsendbreak_bsd(fd);
} else if (!IsWindows()) {
rc = sys_ioctl(fd, TCSBRK, 0);
} else {
rc = sys_tcsendbreak_nt(fd);
}
STRACE("tcsendbreak(%d, %u) â %d% m", fd, duration, rc);
return rc;
}
| 3,375 | 70 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/madvise.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/syscall-nt.internal.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/strace.internal.h"
#include "libc/sysv/errfuns.h"
/**
* Drops hints to O/S about intended access patterns of mmap()'d memory.
*
* @param advice can be MADV_WILLNEED, MADV_SEQUENTIAL, MADV_FREE, etc.
* @return 0 on success, or -1 w/ errno
* @see libc/sysv/consts.sh
* @see fadvise()
*/
int madvise(void *addr, size_t length, int advice) {
int rc;
if (advice != 127 /* see consts.sh */) {
if (IsAsan() && !__asan_is_valid(addr, length)) {
rc = efault();
} else if (!IsWindows()) {
rc = sys_madvise(addr, length, advice);
} else {
rc = sys_madvise_nt(addr, length, advice);
}
} else {
rc = einval();
}
STRACE("madvise(%p, %'zu, %d) â %d% m", addr, length, advice, rc);
return rc;
}
| 2,778 | 51 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/eaccess.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2022 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/sysv/consts/at.h"
/**
* Performs access() check using effective user/group id.
*/
int eaccess(const char *filename, int amode) {
return faccessat(AT_FDCWD, filename, amode, AT_EACCESS);
}
| 2,074 | 28 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/diagnose_syscall.S | /*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-â
âvi: set et ft=asm ts=8 tw=8 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2022 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/macros.internal.h"
.privileged
diagnose_syscall:
push %rbp
mov %rsp,%rbp
push %rbx
push %r12
push %r13
push %r14
push %r15
mov $0x7fffffff,%eax
add $4,%eax # set sf/of/pf
mov %rdi,%rax # nr
mov %rsi,%rdi # arg 1
mov %rdx,%rsi # arg 2
mov %rcx,%rdx # arg 3
mov %r8,%r10 # arg 4
mov %r9,%r8 # arg 5
mov 16(%rbp),%r9 # arg 6
push 24(%rbp) # arg 7
push %rax # fake ret addr
mov 32(%rbp),%r12 # ucontext before
mov 40(%rbp),%r13 # ucontext after
xor %ecx,%ecx
xor %r11d,%r11d
mov $0x5555555555555555,%r11
mov $0x5555555555555555,%r14
mov $0x5555555555555555,%r15
mov $0x5555555555555555,%rbx
// save machine state before system call
pushf
pop 176(%r12)
mov %r8,40(%r12)
mov %r9,48(%r12)
mov %r10,56(%r12)
mov %r11,64(%r12)
mov %r12,72(%r12)
mov %r13,80(%r12)
mov %r14,88(%r12)
mov %r15,96(%r12)
mov %rdi,104(%r12)
mov %rsi,112(%r12)
mov %rbp,120(%r12)
mov %rbx,128(%r12)
mov %rdx,136(%r12)
mov %rax,144(%r12)
mov %rcx,152(%r12)
push %rbx
lea 320(%r12),%rbx
mov %rbx,224(%r12) # set fpregs ptr
pop %rbx
syscall
// save machine state after system call
pushf
pop 176(%r13)
mov %r8,40(%r13)
mov %r9,48(%r13)
mov %r10,56(%r13)
mov %r11,64(%r13)
mov %r12,72(%r13)
mov %r13,80(%r13)
mov %r14,88(%r13)
mov %r15,96(%r13)
mov %rdi,104(%r13)
mov %rsi,112(%r13)
mov %rbp,120(%r13)
mov %rbx,128(%r13)
mov %rdx,136(%r13)
mov %rax,144(%r13)
mov %rcx,152(%r13)
push %rbx
lea 320(%r13),%rbx
mov %rbx,224(%r13) # set fpregs ptr
pop %rbx
pop %r13
pop %r13
pop %r15
pop %r14
pop %r13
pop %r12
pop %rbx
pop %rbp
ret
.endfn diagnose_syscall,globl
| 3,489 | 111 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/fstat64.S | /*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-â
âvi: set et ft=asm ts=8 tw=8 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2022 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/macros.internal.h"
fstat64:
jmp fstat
.endfn fstat64,globl
| 1,913 | 24 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/gettimeofday-xnu.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/struct/timeval.internal.h"
axdx_t sys_gettimeofday_xnu(struct timeval *tv, struct timezone *tz,
void *wut) {
axdx_t ad;
ad = sys_gettimeofday(tv, tz, wut);
if (ad.ax > 0 && tv) {
tv->tv_sec = ad.ax;
tv->tv_usec = ad.dx;
ad.ax = 0;
}
return ad;
}
| 2,154 | 32 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/ioctl_tiocgwinsz.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/internal.h"
#include "libc/calls/ioctl.h"
#include "libc/calls/struct/winsize.h"
#include "libc/calls/struct/winsize.internal.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/strace.internal.h"
#include "libc/sysv/consts/termios.h"
#include "libc/sysv/errfuns.h"
/**
* Returns width and height of terminal.
*
* @see ioctl(fd, TIOCGWINSZ, ws) dispatches here
*/
int ioctl_tiocgwinsz(int fd, ...) {
int rc;
va_list va;
struct winsize *ws;
va_start(va, fd);
ws = va_arg(va, struct winsize *);
va_end(va);
if (IsAsan() && !__asan_is_valid(ws, sizeof(*ws))) {
rc = efault();
} else if (fd >= 0) {
if (fd < g_fds.n && g_fds.p[fd].kind == kFdZip) {
rc = enotty();
} else if (!IsWindows()) {
rc = sys_ioctl(fd, TIOCGWINSZ, ws);
} else {
rc = ioctl_tiocgwinsz_nt(g_fds.p + fd, ws);
}
} else {
rc = einval();
}
STRACE("%s(%d) â %d% m", "ioctl_tiocgwinsz", fd, rc);
return rc;
}
| 2,881 | 58 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/tgkill.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2022 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/intrin/strace.internal.h"
/**
* Kills thread, the Linux way.
*
* @param tgid is thread group id, which on Linux means process id
* @param tid is thread id
* @raises ENOSYS on non-Linux
* @see tkill()
*/
int tgkill(int tgid, int tid, int sig) {
int rc;
rc = sys_tgkill(tgid, tid, sig);
STRACE("tgkill(%d, %d, %G) â %d% m", tgid, tid, sig, rc);
return rc;
}
| 2,301 | 37 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/getresuid.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/intrin/strace.internal.h"
/**
* Gets real, effective, and "saved" user ids.
*
* @param real receives real user id, or null to do nothing
* @param effective receives effective user id, or null to do nothing
* @param saved receives saved user id, or null to do nothing
* @return 0 on success or -1 w/ errno
* @see setresuid()
*/
int getresuid(uint32_t *real, uint32_t *effective, uint32_t *saved) {
int rc, uid;
if (IsWindows()) {
uid = getuid();
if (real) *real = uid;
if (effective) *effective = uid;
if (saved) *saved = uid;
rc = 0;
} else if (saved) {
rc = sys_getresuid(real, effective, saved);
} else {
if (real) *real = sys_getuid();
if (effective) *effective = sys_geteuid();
rc = 0;
}
STRACE("getresuid([%d], [%d], [%d]) â %d% m", real ? *real : 0,
effective ? *effective : 0, saved ? *saved : 0, rc);
return rc;
}
| 2,841 | 52 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/unmount.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2021 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/mount.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/intrin/strace.internal.h"
/**
* Unmounts file system.
*
* The following flags may be specified:
*
* - `MNT_FORCE`
*
* The following flags may also be used, but could be set to zero at
* runtime if the underlying kernel doesn't support them.
*
* - `MNT_DETACH`: lazily unmount; Linux-only
* - `MNT_EXPIRE`
* - `UMOUNT_NOFOLLOW`
* - `MNT_BYFSID`
*
*/
int unmount(const char *target, int flags) {
int rc;
rc = sys_unmount(target, flags);
STRACE("unmount(%#s, %#x) â %d% m", target, flags, rc);
return rc;
}
| 2,457 | 45 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/prctl.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2022 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/prctl.internal.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/strace.internal.h"
#include "libc/sysv/consts/pr.h"
#include "libc/sysv/errfuns.h"
/**
* Tunes process on Linux.
*
* @raise ENOSYS on non-Linux
*/
privileged int prctl(int operation, ...) {
int rc;
va_list va;
intptr_t a, b, c, d;
va_start(va, operation);
a = va_arg(va, intptr_t);
b = va_arg(va, intptr_t);
c = va_arg(va, intptr_t);
d = va_arg(va, intptr_t);
va_end(va);
if (IsLinux()) {
rc = sys_prctl(operation, a, b, c, d);
if (rc < 0) {
errno = -rc;
rc = -1;
}
} else {
rc = enosys();
}
#ifdef SYSDEBUG
if (operation == PR_CAPBSET_READ || operation == PR_CAPBSET_DROP) {
STRACE("prctl(%s, %s) â %d% m", DescribePrctlOperation(operation),
DescribeCapability(a), rc);
} else {
STRACE("prctl(%s, %p, %p, %p, %p) â %d% m",
DescribePrctlOperation(operation), a, b, c, d, rc);
}
#endif
return rc;
}
| 2,968 | 68 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/setpriority.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/syscall-nt.internal.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/strace.internal.h"
/**
* Sets nice value of thing.
*
* On Windows, there's only six priority classes. We define them as -16
* (realtime), -10 (high), -5 (above), 0 (normal), 5 (below), 15 (idle)
* which are the only values that'll roundtrip getpriority/setpriority.
*
* @param which can be one of:
* - `PRIO_PROCESS` is supported universally
* - `PRIO_PGRP` is supported on unix
* - `PRIO_USER` is supported on unix
* @param who is the pid, pgid, or uid, 0 meaning current
* @param value â [-NZERO,NZERO) which is clamped automatically
* @return 0 on success, or -1 w/ errno
* @raise EINVAL if `which` was invalid or unsupported
* @error EACCES if `value` lower that `RLIMIT_NICE`
* @error EACCES on Linux without `CAP_SYS_NICE`
* @raise EPERM if access to process was denied
* @raise ESRCH if the process didn't exist
* @see getpriority()
*/
int setpriority(int which, unsigned who, int value) {
int rc;
if (!IsWindows()) {
rc = sys_setpriority(which, who, value);
} else {
rc = sys_setpriority_nt(which, who, value);
}
STRACE("setpriority(%s, %u, %d) â %d% m", DescribeWhichPrio(which), who,
value, rc);
return rc;
}
| 3,233 | 58 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/poll-sysv.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2023 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/struct/timespec.h"
#include "libc/errno.h"
#include "libc/sock/struct/pollfd.internal.h"
int sys_poll(struct pollfd *fds, size_t nfds, int timeout_ms) {
int e, rc;
struct timespec ts, *tp;
if (timeout_ms >= 0) {
ts = timespec_frommillis(timeout_ms);
tp = &ts;
} else {
tp = 0;
}
e = errno;
rc = sys_ppoll(fds, nfds, tp, 0, 0);
if (rc == -1 && errno == ENOSYS) {
errno = e;
rc = __sys_poll(fds, nfds, timeout_ms);
}
return rc;
}
| 2,356 | 41 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/sched-sysv.internal.h | #ifndef COSMOPOLITAN_LIBC_CALLS_SCHED_SYSV_INTERNAL_H_
#define COSMOPOLITAN_LIBC_CALLS_SCHED_SYSV_INTERNAL_H_
#include "libc/calls/struct/sched_param.h"
#define MAXCPUS_NETBSD 256
#define MAXCPUS_FREEBSD 256
#define MAXCPUS_OPENBSD 64
#define P_ALL_LWPS 0 /* for effect on all threads in pid */
#define CPU_LEVEL_WHICH 3
#define CPU_WHICH_TID 1
#define CPU_WHICH_PID 2
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
int sys_sched_get_priority_max(int);
int sys_sched_get_priority_min(int);
int sys_sched_getparam(int, struct sched_param *);
int sys_sched_getscheduler(int);
int sys_sched_setaffinity(int, uint64_t, const void *) _Hide;
int sys_sched_setparam(int, const struct sched_param *);
int sys_sched_setscheduler(int, int, const struct sched_param *);
int sys_sched_yield(void) _Hide;
int64_t sys_sched_getaffinity(int, uint64_t, void *) _Hide;
int sys_sched_getscheduler_netbsd(int, struct sched_param *);
int sys_sched_setparam_netbsd(int, int, int, const struct sched_param *) //
asm("sys_sched_setparam");
int sys_sched_getparam_netbsd(int, int, int *, struct sched_param *) //
asm("sys_sched_getparam");
int sys_sched_setaffinity_netbsd(int, int, size_t, const void *) //
asm("sys_sched_setaffinity");
int sys_sched_getaffinity_netbsd(int, int, size_t, void *) //
asm("sys_sched_setaffinity");
int sys_sched_setaffinity_freebsd(
int level, int which, int id, size_t setsize,
const void *mask) asm("sys_sched_setaffinity");
int sys_sched_getaffinity_freebsd(int level, int which, int id, size_t setsize,
void *mask) asm("sys_sched_getaffinity");
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_CALLS_SCHED_SYSV_INTERNAL_H_ */
| 1,776 | 46 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/tcgetsid.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2021 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/calls/termios.h"
#include "libc/sysv/consts/termios.h"
int tcgetsid(int fd) {
int sid;
if (sys_ioctl(fd, TIOCGSID, &sid) < 0) return -1;
return sid;
}
| 2,055 | 28 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/__sig2.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2022 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "ape/sections.internal.h"
#include "libc/assert.h"
#include "libc/calls/calls.h"
#include "libc/calls/sig.internal.h"
#include "libc/calls/state.internal.h"
#include "libc/calls/struct/sigaction.h"
#include "libc/calls/struct/siginfo.h"
#include "libc/calls/struct/sigset.h"
#include "libc/intrin/strace.internal.h"
#include "libc/macros.internal.h"
#include "libc/runtime/internal.h"
#include "libc/runtime/runtime.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/sa.h"
#include "libc/sysv/consts/sig.h"
#include "libc/sysv/errfuns.h"
#include "libc/thread/tls.h"
#ifdef __x86_64__
/**
* Allocates piece of memory for storing pending signal.
* @assume lock is held
*/
static textwindows struct Signal *__sig_alloc(void) {
int i;
struct Signal *res = 0;
for (i = 0; i < ARRAYLEN(__sig.mem); ++i) {
if (!__sig.mem[i].used) {
__sig.mem[i].used = true;
res = __sig.mem + i;
break;
}
}
return res;
}
/**
* Returns signal memory to static pool.
*/
static textwindows void __sig_free(struct Signal *mem) {
mem->used = false;
}
static inline textwindows int __sig_is_masked(int sig) {
if (__tls_enabled) {
return __get_tls()->tib_sigmask & (1ull << (sig - 1));
} else {
return __sig.sigmask & (1ull << (sig - 1));
}
}
textwindows int __sig_is_applicable(struct Signal *s) {
return s->tid <= 0 || s->tid == gettid();
}
/**
* Dequeues signal that isn't masked.
* @return signal or null if empty or none unmasked
*/
static textwindows struct Signal *__sig_remove(void) {
struct Signal *prev, *res;
if (__sig.queue) {
__sig_lock();
for (prev = 0, res = __sig.queue; res; prev = res, res = res->next) {
if (__sig_is_applicable(res) && !__sig_is_masked(res->sig)) {
if (res == __sig.queue) {
__sig.queue = res->next;
} else if (prev) {
prev->next = res->next;
}
res->next = 0;
break;
}
}
__sig_unlock();
} else {
res = 0;
}
return res;
}
/**
* Delivers signal to callback.
* @note called from main thread
* @return true if EINTR should be returned by caller
*/
static bool __sig_deliver(bool restartable, int sig, int si_code,
ucontext_t *ctx) {
unsigned rva, flags;
siginfo_t info, *infop;
STRACE("delivering %G", sig);
// enter the signal
rva = __sighandrvas[sig];
flags = __sighandflags[sig];
if ((~flags & SA_NODEFER) || (flags & SA_RESETHAND)) {
// by default we try to avoid reentering a signal handler. for
// example, if a sigsegv handler segfaults, then we'd want the
// second signal to just kill the process. doing this means we
// track state. that's bad if you want to longjmp() out of the
// signal handler. in that case you must use SA_NODEFER.
__sighandrvas[sig] = (int32_t)(intptr_t)SIG_DFL;
}
// setup the somewhat expensive information args
// only if they're requested by the user in sigaction()
if (flags & SA_SIGINFO) {
bzero(&info, sizeof(info));
info.si_signo = sig;
info.si_code = si_code;
infop = &info;
} else {
infop = 0;
ctx = 0;
}
// handover control to user
((sigaction_f)(__executable_start + rva))(sig, infop, ctx);
if ((~flags & SA_NODEFER) && (~flags & SA_RESETHAND)) {
// it's now safe to reenter the signal so we need to restore it.
// since sigaction() is @asyncsignalsafe we only restore it if the
// user didn't change it during the signal handler. we also don't
// need to do anything if this was a oneshot signal or nodefer.
if (__sighandrvas[sig] == (int32_t)(intptr_t)SIG_DFL) {
__sighandrvas[sig] = rva;
}
}
if (!restartable) {
return true; // always send EINTR for wait4(), poll(), etc.
} else if (flags & SA_RESTART) {
STRACE("restarting syscall on %G", sig);
return false; // resume syscall for read(), write(), etc.
} else {
return true; // default course is to raise EINTR
}
}
/**
* Returns true if signal default action is to end process.
*/
static textwindows bool __sig_is_fatal(int sig) {
if (sig == SIGCHLD || sig == SIGURG || sig == SIGWINCH) {
return false;
} else {
return true;
}
}
/**
* Handles signal.
*
* @param restartable can be used to suppress true return if SA_RESTART
* @return true if signal was delivered
*/
bool __sig_handle(bool restartable, int sig, int si_code, ucontext_t *ctx) {
bool delivered;
switch (__sighandrvas[sig]) {
case (intptr_t)SIG_DFL:
if (__sig_is_fatal(sig)) {
STRACE("terminating on %G", sig);
_Exitr(128 + sig);
}
// fallthrough
case (intptr_t)SIG_IGN:
STRACE("ignoring %G", sig);
delivered = false;
break;
default:
delivered = __sig_deliver(restartable, sig, si_code, ctx);
break;
}
return delivered;
}
/**
* Handles signal immediately if not blocked.
*
* @param restartable is for functions like read() but not poll()
* @return true if EINTR should be returned by caller
* @return 1 if delivered, 0 if enqueued, otherwise -1 w/ errno
* @note called from main thread
* @threadsafe
*/
textwindows int __sig_raise(int sig, int si_code) {
if (1 <= sig && sig <= 64) {
if (!__sig_is_masked(sig)) {
++__sig_count;
// TODO(jart): ucontext_t support
__sig_handle(false, sig, si_code, 0);
return 0;
} else {
STRACE("%G is masked", sig);
return __sig_add(gettid(), sig, si_code);
}
} else {
return einval();
}
}
/**
* Enqueues generic signal for delivery on New Technology.
* @return 0 on success, otherwise -1 w/ errno
* @threadsafe
*/
textwindows int __sig_add(int tid, int sig, int si_code) {
int rc;
struct Signal *mem;
if (1 <= sig && sig <= 64) {
if (__sighandrvas[sig] == (unsigned)(intptr_t)SIG_IGN) {
STRACE("ignoring %G", sig);
rc = 0;
} else {
STRACE("enqueuing %G", sig);
__sig_lock();
++__sig_count;
if ((mem = __sig_alloc())) {
mem->tid = tid;
mem->sig = sig;
mem->si_code = si_code;
mem->next = __sig.queue;
__sig.queue = mem;
rc = 0;
} else {
rc = enomem();
}
__sig_unlock();
}
} else {
rc = einval();
}
return rc;
}
/**
* Checks for unblocked signals and delivers them on New Technology.
*
* @param restartable is for functions like read() but not poll()
* @return true if EINTR should be returned by caller
* @note called from main thread
* @threadsafe
*/
textwindows bool __sig_check(bool restartable) {
unsigned rva;
bool delivered;
struct Signal *sig;
delivered = false;
while ((sig = __sig_remove())) {
delivered |= __sig_handle(restartable, sig->sig, sig->si_code, 0);
__sig_free(sig);
}
return delivered;
}
/**
* Determines if a signal should be ignored and if so discards existing
* instances of said signal on New Technology.
*
* Even blocked signals are discarded.
*
* @param sig the signal number to remove
* @threadsafe
*/
textwindows void __sig_check_ignore(const int sig, const unsigned rva) {
struct Signal *cur, *prev, *next;
if (rva != (unsigned)(intptr_t)SIG_IGN &&
(rva != (unsigned)(intptr_t)SIG_DFL || __sig_is_fatal(sig))) {
return;
}
if (__sig.queue) {
__sig_lock();
for (prev = 0, cur = __sig.queue; cur; cur = next) {
next = cur->next;
if (sig == cur->sig) {
if (cur == __sig.queue) {
__sig.queue = cur->next;
} else if (prev) {
prev->next = cur->next;
}
__sig_handle(false, cur->sig, cur->si_code, 0);
__sig_free(cur);
} else {
prev = cur;
}
}
__sig_unlock();
}
}
#endif /* __x86_64__ */
| 9,585 | 311 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/__sig.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2022 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/sig.internal.h"
struct Signals __sig;
| 1,896 | 22 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/writev.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/cp.internal.h"
#include "libc/calls/internal.h"
#include "libc/calls/struct/iovec.internal.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/errno.h"
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/kprintf.h"
#include "libc/intrin/likely.h"
#include "libc/intrin/strace.internal.h"
#include "libc/intrin/weaken.h"
#include "libc/sock/internal.h"
#include "libc/sysv/errfuns.h"
#include "libc/zipos/zipos.internal.h"
/**
* Writes data from multiple buffers.
*
* This is the same thing as write() except it has multiple buffers.
* This yields a performance boost in situations where it'd be expensive
* to stitch data together using memcpy() or issuing multiple syscalls.
* This wrapper is implemented so that writev() calls where iovlen<2 may
* be passed to the kernel as write() instead. This yields a 100 cycle
* performance boost in the case of a single small iovec.
*
* Please note that it's not an error for a short write to happen. This
* can happen in the kernel if EINTR happens after some of the write has
* been committed. It can also happen if we need to polyfill this system
* call using write().
*
* @return number of bytes actually handed off, or -1 w/ errno
* @cancellationpoint
* @restartable
*/
ssize_t writev(int fd, const struct iovec *iov, int iovlen) {
ssize_t rc;
BEGIN_CANCELLATION_POINT;
if (fd >= 0 && iovlen >= 0) {
if (IsAsan() && !__asan_is_valid_iov(iov, iovlen)) {
rc = efault();
} else if (fd < g_fds.n && g_fds.p[fd].kind == kFdZip) {
rc = _weaken(__zipos_write)(
(struct ZiposHandle *)(intptr_t)g_fds.p[fd].handle, iov, iovlen, -1);
} else if (!IsWindows() && !IsMetal()) {
if (iovlen == 1) {
rc = sys_write(fd, iov[0].iov_base, iov[0].iov_len);
} else {
rc = sys_writev(fd, iov, iovlen);
}
} else if (fd >= g_fds.n) {
rc = ebadf();
} else if (IsMetal()) {
rc = sys_writev_metal(g_fds.p + fd, iov, iovlen);
} else {
rc = sys_writev_nt(fd, iov, iovlen);
}
} else if (fd < 0) {
rc = ebadf();
} else {
rc = einval();
}
END_CANCELLATION_POINT;
STRACE("writev(%d, %s, %d) â %'ld% m", fd,
DescribeIovec(rc != -1 ? rc : -2, iov, iovlen), iovlen, rc);
return rc;
}
| 4,211 | 88 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/groups.internal.h | #ifndef COSMOPOLITAN_LIBC_CALLS_GROUPS_INTERNAL_H_
#define COSMOPOLITAN_LIBC_CALLS_GROUPS_INTERNAL_H_
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
int sys_getgroups(int size, uint32_t list[]);
int sys_setgroups(size_t size, uint32_t list[]);
const char *DescribeGidList(char[128], int, int, const uint32_t list[]);
#define DescribeGidList(rc, length, gidlist) \
DescribeGidList(alloca(128), rc, length, gidlist)
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_CALLS_GROUPS_INTERNAL_H_ */
| 556 | 17 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/sched_setparam.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2022 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/sched-sysv.internal.h"
#include "libc/calls/struct/sched_param.h"
#include "libc/calls/struct/sched_param.internal.h"
#include "libc/dce.h"
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/strace.internal.h"
#include "libc/sysv/errfuns.h"
/**
* Sets scheduler policy parameter.
*
* @return 0 on success, or -1 w/ errno
* @raise ENOSYS on XNU, Windows, OpenBSD
* @vforksafe
*/
int sched_setparam(int pid, const struct sched_param *param) {
int rc, policy;
struct sched_param p;
if (!param || (IsAsan() && !__asan_is_valid(param, sizeof(*param)))) {
rc = efault();
} else if (IsNetbsd()) {
if ((rc = policy = sys_sched_getscheduler_netbsd(pid, &p)) != -1) {
rc = sys_sched_setparam_netbsd(pid, P_ALL_LWPS, policy, param);
}
} else {
rc = sys_sched_setparam(pid, param);
}
STRACE("sched_setparam(%d, %s) â %d% m", pid, DescribeSchedParam(param), rc);
return rc;
}
| 2,777 | 49 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/sched_rr_get_interval.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2022 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/struct/timespec.internal.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/strace.internal.h"
int sys_sched_rr_get_interval(int, struct timespec *) _Hide;
/**
* Returns round-robin `SCHED_RR` quantum for `pid`.
*
* @param pid is id of process (where 0 is same as getpid())
* @param tp receives output interval
* @return 0 on success, or -1 w/ errno
* @error ENOSYS if not Linux or FreeBSD
* @error EFAULT if `tp` memory is invalid
* @error EINVAL if invalid `pid`
* @error ESRCH if could not find `pid`
*/
int sched_rr_get_interval(int pid, struct timespec *tp) {
int rc;
rc = sys_sched_rr_get_interval(pid, tp);
STRACE("sched_rr_get_interval(%d, [%s]) â %d% m", pid,
DescribeTimespec(rc, tp), rc);
return rc;
}
| 2,653 | 44 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/tcflush.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2021 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/internal.h"
#include "libc/calls/syscall-nt.internal.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/calls/syscall_support-nt.internal.h"
#include "libc/calls/termios.h"
#include "libc/dce.h"
#include "libc/fmt/itoa.h"
#include "libc/intrin/strace.internal.h"
#include "libc/mem/alloca.h"
#include "libc/nt/comms.h"
#include "libc/sysv/consts/termios.h"
#include "libc/sysv/errfuns.h"
#define kNtPurgeTxclear 4
#define kNtPurgeRxclear 8
static const char *DescribeFlush(char buf[12], int action) {
if (action == TCIFLUSH) return "TCIFLUSH";
if (action == TCOFLUSH) return "TCOFLUSH";
if (action == TCIOFLUSH) return "TCIOFLUSH";
FormatInt32(buf, action);
return buf;
}
static dontinline textwindows int sys_tcflush_nt(int fd, int queue) {
bool32 ok;
int64_t h;
if (!__isfdopen(fd)) return ebadf();
ok = true;
h = g_fds.p[fd].handle;
if (queue == TCIFLUSH || queue == TCIOFLUSH) {
ok &= !!PurgeComm(h, kNtPurgeRxclear);
}
if (queue == TCOFLUSH || queue == TCIOFLUSH) {
ok &= !!PurgeComm(h, kNtPurgeTxclear);
}
return ok ? 0 : __winerr();
}
/**
* Discards queued data on teletypewriter.
*
* @param queue may be one of:
* - `TCIFLUSH` flushes data received but not read
* - `TCOFLUSH` flushes data written but not transmitted
* - `TCIOFLUSH` does both `TCOFLUSH` and `TCIFLUSH`
* @return 0 on success, or -1 w/ errno
* @raise EINVAL if `action` is invalid
* @raise EBADF if `fd` isn't an open file descriptor
* @raise ENOTTY if `fd` is open but not a teletypewriter
* @raise EIO if process group of writer is orphoned, calling thread is
* not blocking `SIGTTOU`, and process isn't ignoring `SIGTTOU`
* @raise ENOSYS on bare metal
* @asyncsignalsafe
*/
int tcflush(int fd, int queue) {
int rc;
if (IsMetal()) {
rc = enosys();
} else if (!IsWindows()) {
rc = sys_ioctl(fd, TCFLSH, queue);
} else {
rc = sys_tcflush_nt(fd, queue);
}
STRACE("tcflush(%d, %s) â %d% m", fd, DescribeFlush(alloca(12), queue), rc);
return rc;
}
| 3,891 | 86 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/parsepromises.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2022 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/pledge.internal.h"
#include "libc/macros.internal.h"
#include "libc/str/str.h"
static int FindPromise(const char *name) {
int i;
for (i = 0; i < ARRAYLEN(kPledge); ++i) {
if (!strcasecmp(name, kPledge[i].name)) {
return i;
}
}
return -1;
}
/**
* Parses the arguments to pledge() into a bitmask.
*
* @return 0 on success, or -1 if invalid
*/
int ParsePromises(const char *promises, unsigned long *out) {
int rc = 0;
int promise;
unsigned long ipromises;
char *tok, *state, *start, buf[256];
if (promises) {
ipromises = -1;
if (memccpy(buf, promises, 0, sizeof(buf))) {
start = buf;
while ((tok = strtok_r(start, " \t\r\n", &state))) {
if ((promise = FindPromise(tok)) != -1) {
ipromises &= ~(1ULL << promise);
} else {
rc = -1;
break;
}
start = 0;
}
} else {
rc = -1;
}
} else {
ipromises = 0;
}
if (!rc) {
*out = ipromises;
}
return rc;
}
| 2,854 | 67 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/sys_ptrace.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2022 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/likely.h"
#include "libc/intrin/strace.internal.h"
#define IsPeek(request) (IsLinux() && (request)-1u < 3)
/**
* Traces process.
*
* @param op can be PTRACE_xxx
* @param pid is child process id
* @param addr points inside child address space
* @param data is address of output word when peeking
* @note de facto linux only
* @vforksafe
*/
int sys_ptrace(int op, ...) {
va_list va;
int rc, pid;
long addr, *data;
va_start(va, op);
pid = va_arg(va, int);
addr = va_arg(va, long);
data = va_arg(va, long *);
va_end(va);
rc = __sys_ptrace(op, pid, addr, data);
#ifdef SYSDEBUG
if (UNLIKELY(__strace > 0) && strace_enabled(0) > 0) {
if (rc != -1 && IsPeek(op) && data) {
STRACE("sys_ptrace(%s, %d, %p, [%p]) â %p% m", DescribePtrace(op), pid,
addr, *data, rc);
} else {
STRACE("sys_ptrace(%s, %d, %p, %p) â %p% m", DescribePtrace(op), pid,
addr, data, rc);
}
}
#endif
return rc;
}
| 2,969 | 61 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/commandv.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/struct/stat.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/intrin/bits.h"
#include "libc/intrin/safemacros.internal.h"
#include "libc/intrin/strace.internal.h"
#include "libc/log/libfatal.internal.h"
#include "libc/runtime/runtime.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/ok.h"
#include "libc/sysv/consts/s.h"
#include "libc/sysv/errfuns.h"
static bool IsExePath(const char *s, size_t n) {
return n >= 4 && (READ32LE(s + n - 4) == READ32LE(".exe") ||
READ32LE(s + n - 4) == READ32LE(".EXE"));
}
static bool IsComPath(const char *s, size_t n) {
return n >= 4 && (READ32LE(s + n - 4) == READ32LE(".com") ||
READ32LE(s + n - 4) == READ32LE(".COM"));
}
static bool IsComDbgPath(const char *s, size_t n) {
return n >= 8 && (READ64LE(s + n - 8) == READ64LE(".com.dbg") ||
READ64LE(s + n - 8) == READ64LE(".COM.DBG"));
}
static bool AccessCommand(const char *name, char *path, size_t pathsz,
size_t namelen, int *err, const char *suffix,
size_t pathlen) {
size_t suffixlen;
suffixlen = strlen(suffix);
if (IsWindows() && suffixlen == 0 && !IsExePath(name, namelen) &&
!IsComPath(name, namelen))
return false;
if (pathlen + 1 + namelen + suffixlen + 1 > pathsz) return false;
if (pathlen && (path[pathlen - 1] != '/' && path[pathlen - 1] != '\\')) {
path[pathlen] = !IsWindows() ? '/'
: memchr(path, '\\', pathlen) ? '\\'
: '/';
pathlen++;
}
memcpy(path + pathlen, name, namelen);
memcpy(path + pathlen + namelen, suffix, suffixlen + 1);
if (!access(path, X_OK)) {
struct stat st;
if (!stat(path, &st)) {
if (S_ISREG(st.st_mode)) {
return true;
} else {
errno = EACCES;
}
}
}
if (errno == EACCES || *err != EACCES) *err = errno;
return false;
}
static bool SearchPath(const char *name, char *path, size_t pathsz,
size_t namelen, int *err, const char *suffix) {
char sep;
size_t i;
const char *p;
if (!(p = getenv("PATH"))) p = "/bin:/usr/local/bin:/usr/bin";
sep = IsWindows() && strchr(p, ';') ? ';' : ':';
for (;;) {
for (i = 0; p[i] && p[i] != sep; ++i) {
if (i < pathsz) {
path[i] = p[i];
}
}
if (AccessCommand(name, path, pathsz, namelen, err, suffix, i)) {
return true;
}
if (p[i] == sep) {
p += i + 1;
} else {
break;
}
}
return false;
}
static bool FindCommand(const char *name, char *pb, size_t pbsz, size_t namelen,
bool pri, const char *suffix, int *err) {
if (pri && (memchr(name, '/', namelen) || memchr(name, '\\', namelen))) {
pb[0] = 0;
return AccessCommand(name, pb, pbsz, namelen, err, suffix, 0);
}
if (IsWindows() && pri &&
pbsz > max(strlen(kNtSystemDirectory), strlen(kNtWindowsDirectory))) {
return AccessCommand(name, pb, pbsz, namelen, err, suffix,
stpcpy(pb, kNtSystemDirectory) - pb) ||
AccessCommand(name, pb, pbsz, namelen, err, suffix,
stpcpy(pb, kNtWindowsDirectory) - pb);
}
return (IsWindows() &&
(pbsz > 1 && AccessCommand(name, pb, pbsz, namelen, err, suffix,
stpcpy(pb, ".") - pb))) ||
SearchPath(name, pb, pbsz, namelen, err, suffix);
}
static bool FindVerbatim(const char *name, char *pb, size_t pbsz,
size_t namelen, bool pri, int *err) {
return FindCommand(name, pb, pbsz, namelen, pri, "", err);
}
static bool FindSuffixed(const char *name, char *pb, size_t pbsz,
size_t namelen, bool pri, int *err) {
return !IsExePath(name, namelen) && !IsComPath(name, namelen) &&
!IsComDbgPath(name, namelen) &&
(FindCommand(name, pb, pbsz, namelen, pri, ".com", err) ||
FindCommand(name, pb, pbsz, namelen, pri, ".exe", err));
}
/**
* Resolves full pathname of executable.
*
* @return execve()'able path, or NULL w/ errno
* @errno ENOENT, EACCES, ENOMEM
* @see free(), execvpe()
* @asyncsignalsafe
* @vforksafe
*/
char *commandv(const char *name, char *pathbuf, size_t pathbufsz) {
int e, f;
char *res;
size_t namelen;
res = 0;
if (!name) {
efault();
} else if (!(namelen = strlen(name))) {
enoent();
} else if (namelen + 1 > pathbufsz) {
enametoolong();
} else {
e = errno;
f = ENOENT;
if ((IsWindows() &&
(FindSuffixed(name, pathbuf, pathbufsz, namelen, true, &f) ||
FindVerbatim(name, pathbuf, pathbufsz, namelen, true, &f) ||
FindSuffixed(name, pathbuf, pathbufsz, namelen, false, &f) ||
FindVerbatim(name, pathbuf, pathbufsz, namelen, false, &f))) ||
(!IsWindows() &&
(FindVerbatim(name, pathbuf, pathbufsz, namelen, true, &f) ||
FindSuffixed(name, pathbuf, pathbufsz, namelen, true, &f) ||
FindVerbatim(name, pathbuf, pathbufsz, namelen, false, &f) ||
FindSuffixed(name, pathbuf, pathbufsz, namelen, false, &f)))) {
errno = e;
res = pathbuf;
} else {
errno = f;
}
}
STRACE("commandv(%#s, %p, %'zu) â %#s% m", name, pathbuf, pathbufsz, res);
return res;
}
| 7,227 | 178 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/getdtablesize.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2022 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
/**
* Gets file descriptor table size.
*
* @return current limit on the number of open files per process
*/
int getdtablesize(void) {
return g_fds.n;
}
| 2,058 | 30 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/nanosleep-xnu.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/struct/timespec.h"
#include "libc/calls/struct/timespec.internal.h"
#include "libc/calls/struct/timeval.h"
#include "libc/calls/struct/timeval.internal.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/errno.h"
#include "libc/runtime/syslib.internal.h"
#include "libc/sock/internal.h"
// nanosleep() on xnu: a bloodbath of a polyfill
// consider using clock_nanosleep(TIMER_ABSTIME)
int sys_nanosleep_xnu(const struct timespec *req, struct timespec *rem) {
#ifdef __x86_64__
int rc;
struct timeval wt, t1, t2, td;
if (rem) sys_gettimeofday_xnu(&t1, 0, 0);
wt = timespec_totimeval(*req); // rounds up
rc = sys_select(0, 0, 0, 0, &wt);
if (rem && rc == -1 && errno == EINTR) {
sys_gettimeofday_xnu(&t2, 0, 0);
td = timeval_sub(t2, t1);
if (timeval_cmp(td, wt) >= 0) {
rem->tv_sec = 0;
rem->tv_nsec = 0;
} else {
*rem = timeval_totimespec(timeval_sub(wt, td));
}
}
return rc;
#else
return _sysret(__syslib->nanosleep(req, rem));
#endif
}
| 2,864 | 52 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/timespec_add.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2021 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/struct/timespec.h"
/**
* Adds two nanosecond timestamps.
*/
struct timespec timespec_add(struct timespec x, struct timespec y) {
x.tv_sec += y.tv_sec;
x.tv_nsec += y.tv_nsec;
if (x.tv_nsec >= 1000000000) {
x.tv_nsec -= 1000000000;
x.tv_sec += 1;
}
return x;
}
| 2,138 | 33 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/isregularfile.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/struct/metastat.internal.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/calls/syscall_support-nt.internal.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/strace.internal.h"
#include "libc/intrin/weaken.h"
#include "libc/sysv/consts/at.h"
#include "libc/sysv/consts/s.h"
#include "libc/sysv/errfuns.h"
#include "libc/zipos/zipos.internal.h"
/**
* Returns true if file exists and is a regular file.
*
* This function is equivalent to:
*
* return fstatat(AT_FDCWD, path, &st, AT_SYMLINK_NOFOLLOW) != -1 &&
* S_ISREG(st.st_mode);
*
* Except faster, with fewer dependencies, and less errno clobbering.
*
* @see isdirectory(), ischardev(), issymlink()
*/
bool isregularfile(const char *path) {
int e;
bool res;
union metastat st;
struct ZiposUri zipname;
e = errno;
if (IsAsan() && !__asan_is_valid_str(path)) {
efault();
res = false;
} else if (_weaken(__zipos_open) &&
_weaken(__zipos_parseuri)(path, &zipname) != -1) {
if (_weaken(__zipos_stat)(&zipname, &st.cosmo) != -1) {
res = !!S_ISREG(st.cosmo.st_mode);
} else {
res = false;
}
} else if (IsMetal()) {
res = false;
} else if (!IsWindows()) {
if (__sys_fstatat(AT_FDCWD, path, &st, AT_SYMLINK_NOFOLLOW) != -1) {
res = S_ISREG(METASTAT(st, st_mode));
} else {
res = false;
}
} else {
res = isregularfile_nt(path);
}
STRACE("%s(%#s) â %hhhd% m", "isregularfile", path, res);
if (!res && (errno == ENOENT || errno == ENOTDIR)) {
errno = e;
}
return res;
}
| 3,511 | 78 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/clock_getres.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2022 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/asan.internal.h"
#include "libc/calls/struct/timespec.internal.h"
#include "libc/dce.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/strace.internal.h"
#include "libc/sysv/consts/clock.h"
#include "libc/sysv/errfuns.h"
#include "libc/time/time.h"
static int sys_clock_getres_poly(int clock, struct timespec *ts, int64_t real) {
if (clock == CLOCK_REALTIME) {
ts->tv_sec = 0;
ts->tv_nsec = real;
return 0;
} else if (clock == CLOCK_MONOTONIC) {
ts->tv_sec = 0;
ts->tv_nsec = 1;
return 0;
} else {
return einval();
}
}
static int sys_clock_getres_nt(int clock, struct timespec *ts) {
return sys_clock_getres_poly(clock, ts, 100);
}
static int sys_clock_getres_xnu(int clock, struct timespec *ts) {
return sys_clock_getres_poly(clock, ts, 1000);
}
/**
* Returns granularity of clock.
*
* @return 0 on success, or -1 w/ errno
* @error EPERM if pledge() is in play without stdio promise
* @error EINVAL if `clock` isn't supported on this system
* @error EFAULT if `ts` points to bad memory
* @threadsafe
*/
int clock_getres(int clock, struct timespec *ts) {
int rc;
if (!ts || (IsAsan() && !__asan_is_valid_timespec(ts))) {
rc = efault();
} else if (clock == 127) {
rc = einval(); // 127 is used by consts.sh to mean unsupported
} else if (IsWindows()) {
rc = sys_clock_getres_nt(clock, ts);
} else if (IsXnu()) {
rc = sys_clock_getres_xnu(clock, ts);
} else {
rc = sys_clock_getres(clock, ts);
}
STRACE("clock_getres(%s, [%s]) â %d% m", DescribeClockName(clock),
DescribeTimespec(rc, ts), rc);
return rc;
}
| 3,487 | 76 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/getrusage.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/struct/rusage.h"
#include "libc/calls/struct/rusage.internal.h"
#include "libc/dce.h"
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/strace.internal.h"
#include "libc/sysv/errfuns.h"
/**
* Returns resource usage statistics.
*
* @param who can be RUSAGE_{SELF,CHILDREN,THREAD}
* @return 0 on success, or -1 w/ errno
*/
int getrusage(int who, struct rusage *usage) {
int rc;
if (who == 99) {
rc = einval();
} else if (IsAsan() && !__asan_is_valid(usage, sizeof(*usage))) {
rc = efault();
} else if (!IsWindows()) {
rc = sys_getrusage(who, usage);
} else {
rc = sys_getrusage_nt(who, usage);
}
STRACE("getrusage(%d, %p) â %d% m", who, usage, rc);
return rc;
}
| 2,598 | 47 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/unlink_s.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
// TODO(jart): DELETE
/**
* Deletes file.
*
* The caller's variable is made NULL. Note that we define unlink(NULL)
* as a no-op.
*
* @return 0 on success, or -1 w/ errno
* @asyncsignalsafe
*/
int unlink_s(const char **namep) {
const char *name = *namep;
*namep = 0;
return unlink(name);
}
| 2,171 | 37 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/execlp.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/mem/alloca.h"
#include "libc/runtime/runtime.h"
#include "libc/sysv/errfuns.h"
/**
* Executes program, with PATH search and current environment.
*
* The current process is replaced with the executed one.
*
* @param prog is program to launch (may be PATH searched)
* @param arg[0] is the name of the program to run
* @param arg[1,n-2] optionally specify program arguments
* @param arg[n-1] is NULL
* @return doesn't return on success, otherwise -1 w/ errno
* @asyncsignalsafe
* @vforksafe
*/
int execlp(const char *prog, const char *arg, ... /*, NULL*/) {
int i;
char *exe;
char **argv;
va_list va, vb;
char pathbuf[PATH_MAX];
if (!(exe = commandv(prog, pathbuf, sizeof(pathbuf)))) return -1;
va_copy(vb, va);
va_start(va, arg);
for (i = 0; va_arg(va, const char *); ++i) donothing;
va_end(va);
argv = alloca((i + 2) * sizeof(char *));
va_start(vb, arg);
argv[0] = arg;
for (i = 1;; ++i) {
if (!(argv[i] = va_arg(vb, const char *))) break;
}
va_end(vb);
return execv(exe, argv);
}
| 2,912 | 57 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/faccessat.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/syscall-nt.internal.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/strace.internal.h"
#include "libc/intrin/weaken.h"
#include "libc/sysv/consts/at.h"
#include "libc/sysv/errfuns.h"
#include "libc/zipos/zipos.internal.h"
/**
* Checks if effective user can access path in particular ways.
*
* @param dirfd is normally AT_FDCWD but if it's an open directory and
* file is a relative path, then file is opened relative to dirfd
* @param path is a filename or directory
* @param amode can be `R_OK`, `W_OK`, `X_OK`, or `F_OK`
* @param flags can have `AT_EACCESS` and/or `AT_SYMLINK_NOFOLLOW`
* @return 0 if ok, or -1 and sets errno
* @raise EINVAL if `mode` has bad value
* @raise EPERM if pledge() is in play without rpath promise
* @raise EACCES if access for requested `mode` would be denied
* @raise ENOTDIR if a directory component in `path` exists as non-directory
* @raise ENOENT if component of `path` doesn't exist or `path` is empty
* @raise ENOTSUP if `path` is a zip file and `dirfd` isn't `AT_FDCWD`
* @note on Linux `flags` is only supported on Linux 5.8+
* @asyncsignalsafe
*/
int faccessat(int dirfd, const char *path, int amode, int flags) {
int e, rc;
struct ZiposUri zipname;
if (!path || (IsAsan() && !__asan_is_valid_str(path))) {
rc = efault();
} else if (__isfdkind(dirfd, kFdZip)) {
rc = enotsup();
} else if (_weaken(__zipos_open) &&
_weaken(__zipos_parseuri)(path, &zipname) != -1) {
rc = _weaken(__zipos_access)(&zipname, amode);
} else if (!IsWindows()) {
e = errno;
if (!flags) goto NoFlags;
if ((rc = sys_faccessat2(dirfd, path, amode, flags)) == -1) {
if (errno == ENOSYS) {
errno = e;
NoFlags:
rc = sys_faccessat(dirfd, path, amode, flags);
}
}
} else {
rc = sys_faccessat_nt(dirfd, path, amode, flags);
}
STRACE("faccessat(%s, %#s, %#o, %#x) â %d% m", DescribeDirfd(dirfd), path,
amode, flags, rc);
return rc;
}
| 4,050 | 78 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/setitimer.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/struct/itimerval.h"
#include "libc/calls/struct/itimerval.internal.h"
#include "libc/dce.h"
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/strace.internal.h"
#include "libc/sysv/errfuns.h"
#include "libc/time/time.h"
/**
* Schedules delivery of one-shot or intermittent interrupt signal, e.g.
*
* Raise SIGALRM every 1.5s:
*
* sigaction(SIGALRM,
* &(struct sigaction){.sa_sigaction = _missingno},
* NULL);
* setitimer(ITIMER_REAL,
* &(const struct itimerval){{1, 500000},
* {1, 500000}},
* NULL);
*
* Set single-shot 50ms timer callback to interrupt laggy connect():
*
* sigaction(SIGALRM,
* &(struct sigaction){.sa_sigaction = _missingno,
* .sa_flags = SA_RESETHAND},
* NULL);
* setitimer(ITIMER_REAL,
* &(const struct itimerval){{0, 0}, {0, 50000}},
* NULL);
* if (connect(...) == -1 && errno == EINTR) { ... }
*
* Disarm timer:
*
* setitimer(ITIMER_REAL, &(const struct itimerval){0}, NULL);
*
* Be sure to check for EINTR on your i/o calls, for best low latency.
*
* Timers are not inherited across fork.
*
* @param which can be ITIMER_REAL, ITIMER_VIRTUAL, etc.
* @param newvalue specifies the interval ({0,0} means one-shot) and
* duration ({0,0} means disarm) in microseconds â [0,999999] and
* if this parameter is NULL, we'll polyfill getitimer() behavior
* @param out_opt_old may receive remainder of previous op (if any)
* @return 0 on success or -1 w/ errno
*/
int setitimer(int which, const struct itimerval *newvalue,
struct itimerval *oldvalue) {
int rc;
if (IsAsan() &&
((newvalue && !__asan_is_valid(newvalue, sizeof(*newvalue))) ||
(oldvalue && !__asan_is_valid(oldvalue, sizeof(*oldvalue))))) {
rc = efault();
} else if (!IsWindows()) {
if (newvalue) {
rc = sys_setitimer(which, newvalue, oldvalue);
} else {
rc = sys_getitimer(which, oldvalue);
}
} else {
rc = sys_setitimer_nt(which, newvalue, oldvalue);
}
#ifdef SYSDEBUG
if (newvalue && oldvalue) {
STRACE("setitimer(%d, "
"{{%'ld, %'ld}, {%'ld, %'ld}}, "
"[{{%'ld, %'ld}, {%'ld, %'ld}}]) â %d% m",
which, newvalue->it_interval.tv_sec, newvalue->it_interval.tv_usec,
newvalue->it_value.tv_sec, newvalue->it_value.tv_usec,
oldvalue->it_interval.tv_sec, oldvalue->it_interval.tv_usec,
oldvalue->it_value.tv_sec, oldvalue->it_value.tv_usec, rc);
} else if (newvalue) {
STRACE("setitimer(%d, {{%'ld, %'ld}, {%'ld, %'ld}}, NULL) â %d% m", which,
newvalue->it_interval.tv_sec, newvalue->it_interval.tv_usec,
newvalue->it_value.tv_sec, newvalue->it_value.tv_usec, rc);
} else if (oldvalue) {
STRACE("setitimer(%d, NULL, [{{%'ld, %'ld}, {%'ld, %'ld}}]) â %d% m", which,
oldvalue->it_interval.tv_sec, oldvalue->it_interval.tv_usec,
oldvalue->it_value.tv_sec, oldvalue->it_value.tv_usec, rc);
} else {
STRACE("setitimer(%d, NULL, NULL) â %d% m", which, rc);
}
#endif
return rc;
}
| 5,091 | 108 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/minor.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2021 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/makedev.h"
#include "libc/dce.h"
uint32_t(minor)(uint64_t x) {
if (IsXnu()) {
return x & 0x00ffffff;
} else if (IsNetbsd()) {
return (x & 0x000000ff) | (x & 0xfff00000) >> 12;
} else if (IsOpenbsd()) {
return (x & 0x000000ff) | (x & 0x0ffff000) >> 8;
} else if (IsFreebsd()) {
return ((x >> 24) & 0x0000ff00) | (x & 0xffff00ff);
} else {
return ((x >> 12) & 0xffffff00) | (x & 0x000000ff);
}
}
| 2,284 | 35 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/mkdirat.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/syscall-nt.internal.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/strace.internal.h"
#include "libc/intrin/weaken.h"
#include "libc/sysv/consts/at.h"
#include "libc/sysv/errfuns.h"
#include "libc/zipos/zipos.internal.h"
/**
* Creates directory a.k.a. folder.
*
* @param dirfd is normally `AT_FDCWD` but if it's an open directory and
* path is relative, then path becomes relative to dirfd
* @param path is a UTF-8 string, preferably relative w/ forward slashes
* @param mode is permissions bits, which is usually 0755
* @return 0 on success, or -1 w/ errno
* @raise EEXIST if named file already exists
* @raise EBADF if `path` is relative and `dirfd` isn't `AT_FDCWD` or valid
* @raise ENOTDIR if directory component in `path` existed as non-directory
* @raise ENAMETOOLONG if symlink-resolved `path` length exceeds `PATH_MAX`
* @raise ENAMETOOLONG if component in `path` exists longer than `NAME_MAX`
* @raise EROFS if parent directory is on read-only filesystem
* @raise ENOSPC if file system or parent directory is full
* @raise EACCES if write permission was denied on parent directory
* @raise EACCES if search permission was denied on component in `path`
* @raise ENOENT if a component within `path` didn't exist
* @raise ENOENT if `path` is an empty string
* @raise ELOOP if loop was detected resolving components of `path`
* @asyncsignalsafe
* @see makedirs()
*/
int mkdirat(int dirfd, const char *path, unsigned mode) {
int rc;
if (IsAsan() && !__asan_is_valid_str(path)) {
rc = efault();
} else if (_weaken(__zipos_notat) &&
(rc = __zipos_notat(dirfd, path)) == -1) {
STRACE("zipos mkdirat not supported yet");
} else if (!IsWindows()) {
rc = sys_mkdirat(dirfd, path, mode);
} else {
rc = sys_mkdirat_nt(dirfd, path, mode);
}
STRACE("mkdirat(%s, %#s, %#o) â %d% m", DescribeDirfd(dirfd), path, mode, rc);
return rc;
}
| 3,923 | 69 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/ioctl.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#ifdef __STRICT_ANSI__
#undef __STRICT_ANSI__
#endif
#include "libc/calls/ioctl.h"
#define EQUAL(X, Y) ((X) == (Y))
/**
* Controls settings on device.
* @restartable
* @vforksafe
*/
int(ioctl)(int fd, uint64_t request, ...) {
void *arg;
va_list va;
va_start(va, request);
arg = va_arg(va, void *);
va_end(va);
return __IOCTL_DISPATCH(EQUAL, -1, fd, request, arg);
}
| 2,220 | 39 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/getrusage-sysv.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/struct/rusage.h"
#include "libc/calls/struct/rusage.internal.h"
#include "libc/sysv/errfuns.h"
/**
* Returns resource usage statistics.
*
* @param who can be RUSAGE_{SELF,CHILDREN,THREAD}
* @return 0 on success, or -1 w/ errno
*/
int sys_getrusage(int who, struct rusage *usage) {
int rc;
if ((rc = __sys_getrusage(who, usage)) != -1) {
__rusage2linux(usage);
}
return rc;
}
| 2,250 | 36 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/getgroups.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/groups.internal.h"
#include "libc/dce.h"
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/strace.internal.h"
#include "libc/sysv/errfuns.h"
/**
* Gets list of supplementary group IDs
*
* @param size - maximum number of items that can be stored in list
* @param list - buffer to store output gid_t
* @return -1 w/ EFAULT
*/
int getgroups(int size, uint32_t list[]) {
int rc;
size_t n;
if (IsAsan() && (__builtin_mul_overflow(size, sizeof(list[0]), &n) ||
!__asan_is_valid(list, n))) {
rc = efault();
} else if (IsLinux() || IsNetbsd() || IsOpenbsd() || IsFreebsd() || IsXnu()) {
rc = sys_getgroups(size, list);
} else {
rc = enosys();
}
STRACE("getgroups(%d, %s) â %d% m", size, DescribeGidList(rc, rc, list), rc);
return rc;
}
| 2,730 | 48 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/fstatat.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/state.internal.h"
#include "libc/calls/struct/stat.internal.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/fmt/itoa.h"
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/strace.internal.h"
#include "libc/intrin/weaken.h"
#include "libc/log/log.h"
#include "libc/mem/alloca.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/at.h"
#include "libc/sysv/errfuns.h"
#include "libc/zipos/zipos.internal.h"
static inline const char *__strace_fstatat_flags(char buf[12], int flags) {
if (flags == AT_SYMLINK_NOFOLLOW) return "AT_SYMLINK_NOFOLLOW";
FormatInt32(buf, flags);
return buf;
}
/**
* Returns information about thing.
*
* @param dirfd is normally AT_FDCWD but if it's an open directory and
* file is a relative path, then file becomes relative to dirfd
* @param st is where result is stored
* @param flags can have AT_SYMLINK_NOFOLLOW
* @return 0 on success, or -1 w/ errno
* @see S_ISDIR(st.st_mode), S_ISREG()
* @asyncsignalsafe
* @vforksafe
*/
int fstatat(int dirfd, const char *path, struct stat *st, int flags) {
/* execve() depends on this */
int rc;
struct ZiposUri zipname;
if (__isfdkind(dirfd, kFdZip)) {
STRACE("zipos dirfd not supported yet");
rc = einval();
} else if (_weaken(__zipos_stat) &&
_weaken(__zipos_parseuri)(path, &zipname) != -1) {
if (!__vforked) {
rc = _weaken(__zipos_stat)(&zipname, st);
} else {
rc = enotsup();
}
} else if (!IsWindows()) {
rc = sys_fstatat(dirfd, path, st, flags);
} else {
rc = sys_fstatat_nt(dirfd, path, st, flags);
}
STRACE("fstatat(%s, %#s, [%s], %s) â %d% m", DescribeDirfd(dirfd), path,
DescribeStat(rc, st), __strace_fstatat_flags(alloca(12), flags), rc);
return rc;
}
| 3,733 | 78 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/mount.h | #ifndef COSMOPOLITAN_LIBC_CALLS_MOUNT_H_
#define COSMOPOLITAN_LIBC_CALLS_MOUNT_H_
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
int mount(const char *, const char *, const char *, unsigned long,
const void *);
int unmount(const char *, int);
#ifdef _GNU_SOURCE
int umount(const char *);
int umount2(const char *, int);
#endif
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_CALLS_MOUNT_H_ */
| 466 | 18 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/sched_getscheduler-netbsd.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2022 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/sched-sysv.internal.h"
#include "libc/calls/struct/sched_param.h"
int sys_sched_getscheduler_netbsd(int pid, struct sched_param *sp) {
int policy;
if (sys_sched_getparam_netbsd(pid, P_ALL_LWPS, &policy, sp) != -1) {
return policy;
} else {
return -1;
}
}
| 2,159 | 31 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/pread64.S | /*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-â
âvi: set et ft=asm ts=8 tw=8 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2022 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/macros.internal.h"
pread64:
jmp pread
.endfn pread64,globl
| 1,913 | 24 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/unveil.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/assert.h"
#include "libc/calls/blockcancel.internal.h"
#include "libc/calls/calls.h"
#include "libc/calls/landlock.h"
#include "libc/calls/struct/bpf.h"
#include "libc/calls/struct/filter.h"
#include "libc/calls/struct/seccomp.h"
#include "libc/calls/struct/stat.h"
#include "libc/calls/struct/stat.internal.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/calls/syscall_support-sysv.internal.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/fmt/conv.h"
#include "libc/intrin/kprintf.h"
#include "libc/intrin/strace.internal.h"
#include "libc/macros.internal.h"
#include "libc/nexgen32e/vendor.internal.h"
#include "libc/runtime/internal.h"
#include "libc/runtime/runtime.h"
#include "libc/runtime/stack.h"
#include "libc/str/path.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/at.h"
#include "libc/sysv/consts/audit.h"
#include "libc/sysv/consts/f.h"
#include "libc/sysv/consts/fd.h"
#include "libc/sysv/consts/nrlinux.h"
#include "libc/sysv/consts/o.h"
#include "libc/sysv/consts/pr.h"
#include "libc/sysv/consts/s.h"
#include "libc/sysv/errfuns.h"
#include "libc/thread/tls.h"
#ifdef __x86_64__
#define ARCHITECTURE AUDIT_ARCH_X86_64
#elif defined(__aarch64__)
#define ARCHITECTURE AUDIT_ARCH_AARCH64
#else
#error "unsupported architecture"
#endif
#define OFF(f) offsetof(struct seccomp_data, f)
#define UNVEIL_READ \
(LANDLOCK_ACCESS_FS_READ_FILE | LANDLOCK_ACCESS_FS_READ_DIR | \
LANDLOCK_ACCESS_FS_REFER)
#define UNVEIL_WRITE \
(LANDLOCK_ACCESS_FS_WRITE_FILE | LANDLOCK_ACCESS_FS_TRUNCATE)
#define UNVEIL_EXEC (LANDLOCK_ACCESS_FS_EXECUTE)
#define UNVEIL_CREATE \
(LANDLOCK_ACCESS_FS_MAKE_CHAR | LANDLOCK_ACCESS_FS_MAKE_DIR | \
LANDLOCK_ACCESS_FS_MAKE_REG | LANDLOCK_ACCESS_FS_MAKE_SOCK | \
LANDLOCK_ACCESS_FS_MAKE_FIFO | LANDLOCK_ACCESS_FS_MAKE_BLOCK | \
LANDLOCK_ACCESS_FS_MAKE_SYM)
#define FILE_BITS \
(LANDLOCK_ACCESS_FS_READ_FILE | LANDLOCK_ACCESS_FS_WRITE_FILE | \
LANDLOCK_ACCESS_FS_EXECUTE)
static const struct sock_filter kUnveilBlacklistAbiVersionBelow3[] = {
BPF_STMT(BPF_LD | BPF_W | BPF_ABS, OFF(arch)),
BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, ARCHITECTURE, 1, 0),
BPF_STMT(BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS),
BPF_STMT(BPF_LD | BPF_W | BPF_ABS, OFF(nr)),
BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, __NR_linux_truncate, 1, 0),
BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, __NR_linux_setxattr, 0, 1),
BPF_STMT(BPF_RET | BPF_K, SECCOMP_RET_ERRNO | (1 & SECCOMP_RET_DATA)),
BPF_STMT(BPF_RET | BPF_K, SECCOMP_RET_ALLOW),
};
static const struct sock_filter kUnveilBlacklistLatestAbi[] = {
BPF_STMT(BPF_LD | BPF_W | BPF_ABS, OFF(arch)),
BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, ARCHITECTURE, 1, 0),
BPF_STMT(BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS),
BPF_STMT(BPF_LD | BPF_W | BPF_ABS, OFF(nr)),
BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, __NR_linux_setxattr, 0, 1),
BPF_STMT(BPF_RET | BPF_K, SECCOMP_RET_ERRNO | (1 & SECCOMP_RET_DATA)),
BPF_STMT(BPF_RET | BPF_K, SECCOMP_RET_ALLOW),
};
static int landlock_abi_version;
static int landlock_abi_errno;
__attribute__((__constructor__)) void init_landlock_version() {
int e = errno;
landlock_abi_version =
landlock_create_ruleset(0, 0, LANDLOCK_CREATE_RULESET_VERSION);
landlock_abi_errno = errno;
errno = e;
}
/**
* Long living state for landlock calls.
* fs_mask is set to use all the access rights from the latest landlock ABI.
* On init, the current supported abi is checked and unavailable rights are
* masked off.
*
* As of 6.2, the latest abi is v3.
*
* TODO:
* - Integrate with pledge and remove the file access?
* - Stuff state into the .protected section?
*/
_Thread_local static struct {
uint64_t fs_mask;
int fd;
} State;
static int unveil_final(void) {
int e, rc;
struct sock_fprog sandbox = {
.filter = kUnveilBlacklistLatestAbi,
.len = ARRAYLEN(kUnveilBlacklistLatestAbi),
};
if (landlock_abi_version < 3) {
sandbox = (struct sock_fprog){
.filter = kUnveilBlacklistAbiVersionBelow3,
.len = ARRAYLEN(kUnveilBlacklistAbiVersionBelow3),
};
}
e = errno;
prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
errno = e;
if ((rc = landlock_restrict_self(State.fd, 0)) != -1 &&
(rc = sys_close(State.fd)) != -1 &&
(rc = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &sandbox)) != -1) {
State.fd = 0;
}
return rc;
}
static int err_close(int rc, int fd) {
int serrno = errno;
sys_close(fd);
errno = serrno;
return rc;
}
static int unveil_init(void) {
int rc, fd;
State.fs_mask = UNVEIL_READ | UNVEIL_WRITE | UNVEIL_EXEC | UNVEIL_CREATE;
if (landlock_abi_version == -1) {
errno = landlock_abi_errno;
if (errno == EOPNOTSUPP) {
errno = ENOSYS;
}
return -1;
}
if (landlock_abi_version < 2) {
State.fs_mask &= ~LANDLOCK_ACCESS_FS_REFER;
}
if (landlock_abi_version < 3) {
State.fs_mask &= ~LANDLOCK_ACCESS_FS_TRUNCATE;
}
const struct landlock_ruleset_attr attr = {
.handled_access_fs = State.fs_mask,
};
// [undocumented] landlock_create_ruleset() always returns O_CLOEXEC
// assert(__sys_fcntl(rc, F_GETFD, 0) == FD_CLOEXEC);
if ((rc = landlock_create_ruleset(&attr, sizeof(attr), 0)) < 0) return -1;
// grant file descriptor a higher number that's less likely to interfere
if ((fd = __sys_fcntl(rc, F_DUPFD_CLOEXEC, 100)) == -1) {
return err_close(-1, rc);
}
if (sys_close(rc) == -1) {
return err_close(-1, fd);
}
State.fd = fd;
return 0;
}
int sys_unveil_linux(const char *path, const char *permissions) {
int rc;
const char *dir;
const char *last;
const char *next;
struct {
char lbuf[PATH_MAX];
char buf1[PATH_MAX];
char buf2[PATH_MAX];
char buf3[PATH_MAX];
char buf4[PATH_MAX];
} b;
CheckLargeStackAllocation(&b, sizeof(b));
if (!State.fd && (rc = unveil_init()) == -1) return rc;
if ((path && !permissions) || (!path && permissions)) return einval();
if (!path && !permissions) return unveil_final();
struct landlock_path_beneath_attr pb = {0};
for (const char *c = permissions; *c != '\0'; c++) {
switch (*c) {
case 'r':
pb.allowed_access |= UNVEIL_READ;
break;
case 'w':
pb.allowed_access |= UNVEIL_WRITE;
break;
case 'x':
pb.allowed_access |= UNVEIL_EXEC;
break;
case 'c':
pb.allowed_access |= UNVEIL_CREATE;
break;
default:
return einval();
}
}
pb.allowed_access &= State.fs_mask;
// landlock exposes all metadata, so we only technically need to add
// realpath(path) to the ruleset. however a corner case exists where
// it isn't valid, e.g. /dev/stdin -> /proc/2834/fd/pipe:[51032], so
// we'll need to work around this, by adding the path which is valid
if (strlen(path) + 1 > PATH_MAX) return enametoolong();
last = path;
next = path;
for (int i = 0;; ++i) {
if (i == 64) {
// give up
return eloop();
}
int err = errno;
if ((rc = sys_readlinkat(AT_FDCWD, next, b.lbuf, PATH_MAX)) != -1) {
if (rc < PATH_MAX) {
// we need to nul-terminate
b.lbuf[rc] = 0;
// last = next
strcpy(b.buf1, next);
last = b.buf1;
// next = join(dirname(next), link)
strcpy(b.buf2, next);
dir = dirname(b.buf2);
if ((next = _joinpaths(b.buf3, PATH_MAX, dir, b.lbuf))) {
// next now points to either: buf3, buf2, lbuf, rodata
strcpy(b.buf4, next);
next = b.buf4;
} else {
return enametoolong();
}
} else {
// symbolic link data was too long
return enametoolong();
}
} else if (errno == EINVAL) {
// next wasn't a symbolic link
errno = err;
path = next;
break;
} else if (i && (errno == ENOENT || errno == ENOTDIR)) {
// next is a broken symlink, use last
errno = err;
path = last;
break;
} else {
// readlink failed for some other reason
return -1;
}
}
// now we can open the path
BLOCK_CANCELLATIONS;
rc = sys_openat(AT_FDCWD, path, O_PATH | O_NOFOLLOW | O_CLOEXEC, 0);
ALLOW_CANCELLATIONS;
if (rc == -1) return rc;
pb.parent_fd = rc;
struct stat st;
if ((rc = sys_fstat(pb.parent_fd, &st)) == -1) {
return err_close(rc, pb.parent_fd);
}
if (!S_ISDIR(st.st_mode)) {
pb.allowed_access &= FILE_BITS;
}
if ((rc = landlock_add_rule(State.fd, LANDLOCK_RULE_PATH_BENEATH, &pb, 0))) {
return err_close(rc, pb.parent_fd);
}
sys_close(pb.parent_fd);
return rc;
}
/**
* Makes files accessible, e.g.
*
* unveil(".", "r"); // current directory + children are visible
* unveil("/etc", "r"); // make /etc readable too
* unveil(0, 0); // commit and lock policy
*
* Unveiling restricts a view of the filesystem to a set of allowed
* paths with specific privileges.
*
* Once you start using unveil(), the entire file system is considered
* hidden. You then specify, by repeatedly calling unveil(), which paths
* should become unhidden. When you're finished, you call `unveil(0,0)`
* which commits your policy.
*
* This function requires OpenBSD or Linux 5.13+ (2022+). If the kernel
* support isn't available (or we're in an emulator like Qemu or Blink)
* then zero is returned and nothing happens (instead of raising ENOSYS)
* because the files are still unveiled. Use `unveil("", 0)` to feature
* check the host system, which is defined as a no-op that'll fail if
* the host system doesn't have the necessary features that allow
* unveil() impose bona-fide security restrictions. Otherwise, if
* everything is good, a return value `>=0` is returned, where `0` means
* OpenBSD, and `>=1` means Linux with Landlock LSM, in which case the
* return code shall be the maximum supported Landlock ABI version.
*
* There are some differences between unveil() on Linux versus OpenBSD.
*
* 1. Build your policy and lock it in one go. On OpenBSD, policies take
* effect immediately and may evolve as you continue to call unveil()
* but only in a more restrictive direction. On Linux, nothing will
* happen until you call `unveil(0,0)` which commits and locks.
*
* 2. Try not to overlap directory trees. On OpenBSD, if directory trees
* overlap, then the most restrictive policy will be used for a given
* file. On Linux overlapping may result in a less restrictive policy
* and possibly even undefined behavior.
*
* 3. OpenBSD and Linux disagree on error codes. On OpenBSD, accessing
* paths outside of the allowed set raises ENOENT, and accessing ones
* with incorrect permissions raises EACCES. On Linux, both these
* cases raise EACCES.
*
* 4. Unlike OpenBSD, Linux does nothing to conceal the existence of
* paths. Even with an unveil() policy in place, it's still possible
* to access the metadata of all files using functions like stat()
* and open(O_PATH), provided you know the path. A sandboxed process
* can always, for example, determine how many bytes of data are in
* /etc/passwd, even if the file isn't readable. But it's still not
* possible to use opendir() and go fishing for paths which weren't
* previously known.
*
* 5. Use ftruncate() rather than truncate() if you wish for portability
* to Linux kernels versions released before February 2022. One issue
* Landlock hadn't addressed as of ABI version 2 was restrictions
* over truncate() and setxattr() which could permit certain kinds of
* modifications to files outside the sandbox. When your policy is
* committed, we install a SECCOMP BPF filter to disable those calls,
* however similar trickery may be possible through other unaddressed
* calls like ioctl(). Using the pledge() function in addition to
* unveil() will solve this, since it installs a strong system call
* access policy. Linux 6.2 has improved this situation with Landlock
* ABI v3, which added the ability to control truncation operations -
* this means the SECCOMP BPF filter will only disable truncate() on
* Linux 6.1 or older.
*
* 6. Set your process-wide policy at startup from the main thread. On
* OpenBSD unveil() will apply process-wide even when called from a
* child thread; whereas with Linux, calling unveil() from a thread
* will cause your ruleset to only apply to that thread in addition
* to any descendent threads it creates.
*
* 7. Always specify at least one path. OpenBSD has unclear semantics
* when `unveil(0,0)` is used without any previous calls.
*
* 8. On OpenBSD calling `unveil(0,0)` will prevent unveil() from being
* used again. On Linux this is allowed, because Landlock is able to
* do that securely, i.e. the second ruleset can only be a subset of
* the previous ones.
*
* This system call is supported natively on OpenBSD and polyfilled on
* Linux using the Landlock LSM[1].
*
* @param path is the file or directory to unveil
* @param permissions is a string consisting of zero or more of the
* following characters:
*
* - 'r' makes `path` available for read-only path operations,
* corresponding to the pledge promise "rpath".
*
* - `w` makes `path` available for write operations, corresponding
* to the pledge promise "wpath".
*
* - `x` makes `path` available for execute operations,
* corresponding to the pledge promises "exec" and "execnative".
*
* - `c` allows `path` to be created and removed, corresponding to
* the pledge promise "cpath".
*
* @return 0 on success, or -1 w/ errno; note: if `unveil("",0)` is used
* to perform a feature check, then on Linux a value greater than 0
* shall be returned which is the supported Landlock ABI version
* @raise EPERM if unveil() is called after locking
* @raise EINVAL if one argument is set and the other is not
* @raise EINVAL if an invalid character in `permissions` was found
* @raise ENOSYS if `unveil("",0)` was used and security isn't possible
* @raise EOPNOTSUPP if `unveil("",0)` was used and Landlock LSM is disabled
* @note on Linux this function requires Linux Kernel 5.13+ and version 6.2+
* to properly support truncation operations
* @see [1] https://docs.kernel.org/userspace-api/landlock.html
* @threadsafe
*/
int unveil(const char *path, const char *permissions) {
int e, rc;
e = errno;
if (path && !*path) {
// OpenBSD will always fail on both unveil("",0) and unveil("",""),
// since an empty `path` is invalid and `permissions` is mandatory.
// Cosmopolitan Libc uses it as a feature check convention, to test
// if the host environment enables unveil() to impose true security
// restrictions because the default behavior is to silently succeed
// so that programs will err on the side of working if distributed.
if (IsOpenbsd()) return 0;
if (landlock_abi_version != -1) {
_unassert(landlock_abi_version >= 1);
return landlock_abi_version;
} else {
_unassert(landlock_abi_errno);
errno = landlock_abi_errno;
return -1;
}
} else if (!IsTiny() && IsGenuineBlink()) {
rc = 0; // blink doesn't support landlock; avoid noisy log warnings
} else if (IsLinux()) {
rc = sys_unveil_linux(path, permissions);
} else {
rc = sys_unveil(path, permissions);
}
if (rc == -1 && errno == ENOSYS) {
errno = e;
rc = 0;
}
STRACE("unveil(%#s, %#s) â %d% m", path, permissions, rc);
return rc;
}
| 17,551 | 445 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/isatty-metal.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2022 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/syscall_support-sysv.internal.h"
#include "libc/sysv/errfuns.h"
bool32 sys_isatty_metal(int fd) {
if (__isfdopen(fd)) {
if (__isfdkind(fd, kFdSerial)) {
return true;
} else {
enotty();
return false;
}
} else {
ebadf();
return false;
}
}
| 2,202 | 37 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/getrlimit.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/struct/rlimit.internal.h"
#include "libc/dce.h"
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/strace.internal.h"
#include "libc/sysv/consts/rlimit.h"
#include "libc/sysv/errfuns.h"
/**
* Gets resource limit for current process.
*
* @param resource can be RLIMIT_{CPU,FSIZE,DATA,STACK,CORE,RSS,etc.}
* @param rlim receives result, modified only on success
* @return 0 on success or -1 w/ errno
* @see libc/sysv/consts.sh
*/
int getrlimit(int resource, struct rlimit *rlim) {
int rc;
if (resource == 127) {
rc = einval();
} else if (!rlim || (IsAsan() && !__asan_is_valid(rlim, sizeof(*rlim)))) {
rc = efault();
} else if (!IsWindows()) {
rc = sys_getrlimit(resource, rlim);
} else if (resource == RLIMIT_AS) {
rlim->rlim_cur = __virtualmax;
rlim->rlim_max = __virtualmax;
rc = 0;
} else {
rc = einval();
}
STRACE("getrlimit(%s, [%s]) â %d% m", DescribeRlimitName(resource),
DescribeRlimit(rc, rlim), rc);
return rc;
}
| 2,932 | 55 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/mremap-sysv.greg.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2021 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/intrin/asmflag.h"
#include "libc/intrin/strace.internal.h"
#include "libc/sysv/consts/map.h"
#include "libc/sysv/consts/mremap.h"
#include "libc/sysv/errfuns.h"
/**
* Relocates memory.
*
* This function lets you move to to different addresses witohut copying
* it. This system call is currently supported on Linux and NetBSD. Your
* C library runtime won't have any awareness of this memory, so certain
* features like ASAN memory safety and kprintf() won't work as well.
*/
privileged void *sys_mremap(void *p, size_t n, size_t m, int f, void *q) {
#ifdef __x86_64__
bool cf;
uintptr_t res, rdi, rsi, rdx;
register uintptr_t r8 asm("r8");
register uintptr_t r10 asm("r10");
if (IsLinux()) {
r10 = f;
r8 = (uintptr_t)q;
asm("syscall"
: "=a"(res)
: "0"(0x019), "D"(p), "S"(n), "d"(m), "r"(r10), "r"(r8)
: "rcx", "r11", "memory", "cc");
if (res > -4096ul) errno = -res, res = -1;
} else if (IsNetbsd()) {
if (f & MREMAP_MAYMOVE) {
res = 0x19B;
r10 = m;
r8 = (f & MREMAP_FIXED) ? MAP_FIXED : 0;
asm(CFLAG_ASM("syscall")
: CFLAG_CONSTRAINT(cf), "+a"(res), "=d"(rdx)
: "D"(p), "S"(n), "2"(q), "r"(r10), "r"(r8)
: "rcx", "r9", "r11", "memory", "cc");
if (cf) errno = res, res = -1;
} else {
res = einval();
}
} else {
res = enosys();
}
#elif defined(__aarch64__)
void *res;
res = __sys_mremap(p, n, m, f, q);
#else
#error "arch unsupported"
#endif
KERNTRACE("sys_mremap(%p, %'zu, %'zu, %#b, %p) â %p% m", p, n, m, f, q, res);
return (void *)res;
}
| 3,571 | 76 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/remove.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/errno.h"
/**
* Deletes "file" or empty directory associtaed with name.
*
* @return 0 on success or -1 w/ errno
* @see unlink() and rmdir() which this abstracts
*/
int remove(const char *name) {
return unlink(name) != -1 || (errno == EISDIR && rmdir(name) != -1) ? 0 : -1;
}
| 2,163 | 31 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/linkat.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2021 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/syscall-nt.internal.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/strace.internal.h"
#include "libc/intrin/weaken.h"
#include "libc/sysv/errfuns.h"
#include "libc/zipos/zipos.internal.h"
/**
* Creates hard filesystem link.
*
* This allows two names to point to the same file data on disk. They
* can only be differentiated by examining the inode number.
*
* @param flags can have AT_EMPTY_PATH or AT_SYMLINK_NOFOLLOW
* @return 0 on success, or -1 w/ errno
* @asyncsignalsafe
*/
int linkat(int olddirfd, const char *oldpath, int newdirfd, const char *newpath,
int flags) {
int rc;
if (IsAsan() &&
(!__asan_is_valid_str(oldpath) || !__asan_is_valid_str(newpath))) {
rc = efault();
} else if (_weaken(__zipos_notat) &&
((rc = __zipos_notat(olddirfd, oldpath)) == -1 ||
(rc = __zipos_notat(newdirfd, newpath)) == -1)) {
STRACE("zipos fchownat not supported yet");
} else if (!IsWindows()) {
rc = sys_linkat(olddirfd, oldpath, newdirfd, newpath, flags);
} else {
rc = sys_linkat_nt(olddirfd, oldpath, newdirfd, newpath);
}
STRACE("linkat(%s, %#s, %s, %#s, %#b) â %d% m", DescribeDirfd(olddirfd),
oldpath, DescribeDirfd(newdirfd), newpath, flags, rc);
return rc;
}
| 3,277 | 59 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/CPU_OR.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2022 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/struct/cpuset.h"
#include "libc/macros.internal.h"
void CPU_OR(cpu_set_t *d, cpu_set_t *x, cpu_set_t *y) {
int i;
for (i = 0; i < ARRAYLEN(d->__bits); ++i) {
d->__bits[i] = x->__bits[i] | y->__bits[i];
}
}
| 2,074 | 28 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/statfs.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2022 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/cp.internal.h"
#include "libc/calls/state.internal.h"
#include "libc/calls/struct/statfs-meta.internal.h"
#include "libc/calls/struct/statfs.internal.h"
#include "libc/calls/syscall_support-nt.internal.h"
#include "libc/dce.h"
#include "libc/intrin/strace.internal.h"
#include "libc/runtime/stack.h"
#include "libc/sysv/consts/at.h"
/**
* Returns information about filesystem.
* @return 0 on success, or -1 w/ errno
* @raise ECANCELED if thread was cancelled in masked mode
* @raise EINTR if signal was delivered
* @cancellationpoint
*/
int statfs(const char *path, struct statfs *sf) {
int rc;
union statfs_meta m;
BEGIN_CANCELLATION_POINT;
CheckLargeStackAllocation(&m, sizeof(m));
if (!IsWindows()) {
if ((rc = sys_statfs(path, &m)) != -1) {
statfs2cosmo(sf, &m);
}
} else {
rc = sys_statfs_nt(path, sf);
}
END_CANCELLATION_POINT;
STRACE("statfs(%#s, [%s]) â %d% m", path, DescribeStatfs(rc, sf));
return rc;
}
| 2,850 | 55 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/vmsplice.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/struct/iovec.h"
#include "libc/calls/struct/iovec.internal.h"
#include "libc/errno.h"
/**
* Transfers memory to pipe.
*
* @param flags can have SPLICE_F_{MOVE,NONBLOCK,MORE,GIFT}
* @return number of bytes actually transferred, or -1 w/ errno
*/
ssize_t vmsplice(int fd, const struct iovec *chunks, int64_t count,
uint32_t flags) {
int olderr;
ssize_t wrote;
olderr = errno;
if ((wrote = sys_vmsplice(fd, chunks, count, flags)) == -1) {
errno = olderr;
if (count) {
wrote = write(fd, chunks[0].iov_base, chunks[0].iov_len);
} else {
wrote = write(fd, NULL, 0);
}
}
return wrote;
}
| 2,530 | 45 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/clock_gettime-nt.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2021 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/clock_gettime.internal.h"
#include "libc/fmt/conv.h"
#include "libc/nt/struct/filetime.h"
#include "libc/nt/synchronization.h"
#include "libc/sysv/consts/clock.h"
#include "libc/sysv/errfuns.h"
textwindows int sys_clock_gettime_nt(int clock, struct timespec *ts) {
struct NtFileTime ft;
if (clock == CLOCK_REALTIME) {
GetSystemTimeAsFileTime(&ft);
*ts = FileTimeToTimeSpec(ft);
return 0;
} else if (clock == CLOCK_MONOTONIC) {
return sys_clock_gettime_mono(ts);
} else {
return einval();
}
}
| 2,380 | 38 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/kill.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/syscall-nt.internal.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/intrin/strace.internal.h"
#include "libc/str/str.h"
/**
* Sends signal to process.
*
* The impact of this action can be terminating the process, or
* interrupting it to request something happen.
*
* @param pid can be:
* >0 signals one process by id
* =0 signals all processes in current process group
* -1 signals all processes possible (except init)
* <-1 signals all processes in -pid process group
* @param sig can be:
* >0 can be SIGINT, SIGTERM, SIGKILL, SIGUSR1, etc.
* =0 checks both if pid exists and we can signal it
* @return 0 if something was accomplished, or -1 w/ errno
* @raise ESRCH if `pid` couldn't be found
* @raise EPERM if lacked permission to signal process
* @raise EPERM if pledge() is in play without `proc` promised
* @raise EINVAL if the provided `sig` is invalid or unsupported
* @asyncsignalsafe
*/
int kill(int pid, int sig) {
int rc;
if (!IsWindows()) {
rc = sys_kill(pid, sig, 1);
} else {
rc = sys_kill_nt(pid, sig);
}
STRACE("kill(%d, %G) â %d% m", pid, sig, rc);
return rc;
}
| 3,076 | 57 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/major.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2021 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/makedev.h"
#include "libc/dce.h"
uint32_t(major)(uint64_t x) {
if (IsXnu()) {
return (x >> 24) & 0xff;
} else if (IsNetbsd()) {
return (x & 0x000fff00) >> 8;
} else if (IsOpenbsd()) {
return (x >> 8) & 0xff;
} else if (IsFreebsd()) {
return ((x >> 32) & 0xffffff00) | ((x >> 8) & 0x000000ff);
} else {
return ((x >> 32) & 0xfffff000) | ((x >> 8) & 0x00000fff);
}
}
| 2,255 | 35 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/utimensat-xnu.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/struct/stat.h"
#include "libc/calls/struct/timeval.h"
#include "libc/calls/struct/timeval.internal.h"
#include "libc/fmt/conv.h"
#include "libc/nexgen32e/nexgen32e.h"
#include "libc/sysv/consts/at.h"
#include "libc/sysv/consts/utime.h"
#include "libc/sysv/errfuns.h"
#include "libc/time/time.h"
int sys_utimensat_xnu(int dirfd, const char *path, const struct timespec ts[2],
int flags) {
int i;
struct stat st;
struct timeval now, tv[2];
if (flags) return einval();
if (!ts || ts[0].tv_nsec == UTIME_NOW || ts[1].tv_nsec == UTIME_NOW) {
gettimeofday(&now, NULL);
}
if (ts && (ts[0].tv_nsec == UTIME_NOW || ts[1].tv_nsec == UTIME_NOW)) {
if (fstatat(dirfd, path, &st, flags) == -1) return -1;
}
if (ts) {
if (ts[0].tv_nsec == UTIME_NOW) {
tv[0] = now;
} else if (ts[0].tv_nsec == UTIME_OMIT) {
tv[0] = timespec_totimeval(st.st_atim);
} else {
tv[0] = timespec_totimeval(ts[0]);
}
if (ts[1].tv_nsec == UTIME_NOW) {
tv[1] = now;
} else if (ts[1].tv_nsec == UTIME_OMIT) {
tv[1] = timespec_totimeval(st.st_mtim);
} else {
tv[1] = timespec_totimeval(ts[1]);
}
} else {
tv[0] = now;
tv[1] = now;
}
if (path) {
if (dirfd == AT_FDCWD) {
return sys_utimes(path, tv);
} else {
return enosys();
}
} else {
if (dirfd != AT_FDCWD) {
return sys_futimes(dirfd, tv);
} else {
return einval();
}
}
}
| 3,322 | 74 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/sync_file_range.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/errno.h"
/**
* Flushes subset of file to disk.
*
* @param offset is page rounded
* @param bytes is page rounded; 0 means until EOF
* @param flags can have SYNC_FILE_RANGE_{WAIT_BEFORE,WRITE,WAIT_AFTER}
* @note Linux documentation says this call is "dangerous"; for highest
* assurance of data recovery after crash, consider fsync() on both
* file and directory
* @see fsync(), fdatasync(), PAGESIZE
*/
int sync_file_range(int fd, int64_t offset, int64_t bytes, unsigned flags) {
int rc, olderr;
olderr = errno;
if ((rc = sys_sync_file_range(fd, offset, bytes, flags)) != -1 ||
errno != ENOSYS) {
return rc;
} else {
errno = olderr;
return fdatasync(fd);
}
}
| 2,632 | 45 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/setgid.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2022 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/intrin/strace.internal.h"
/**
* Sets group id of current process.
*
* @return 0 on success, or -1 w/ errno
* @raise EINVAL if gid not in legal range
* @raise EPERM if lack privileges
*/
int setgid(unsigned gid) {
int rc;
if (IsWindows() && gid == getgid()) {
rc = 0;
} else {
rc = sys_setgid(gid);
}
STRACE("setgid(%d) â %d% m", gid, rc);
return rc;
}
| 2,330 | 41 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/writev-metal.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2021 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/struct/fd.internal.h"
#include "libc/calls/struct/iovec.h"
#include "libc/calls/struct/iovec.internal.h"
#include "libc/intrin/weaken.h"
#include "libc/sysv/errfuns.h"
#include "libc/vga/vga.internal.h"
#ifdef __x86_64__
ssize_t sys_writev_metal(struct Fd *fd, const struct iovec *iov, int iovlen) {
switch (fd->kind) {
case kFdConsole:
if (_weaken(sys_writev_vga)) _weaken(sys_writev_vga)(fd, iov, iovlen);
/* fallthrough */
case kFdSerial:
return sys_writev_serial(fd, iov, iovlen);
default:
return ebadf();
}
}
#endif /* __x86_64__ */
| 2,438 | 41 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/ntspawn.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2021 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/ntspawn.h"
#include "libc/calls/syscall_support-nt.internal.h"
#include "libc/intrin/pushpop.h"
#include "libc/macros.internal.h"
#include "libc/nt/enum/filemapflags.h"
#include "libc/nt/enum/pageflags.h"
#include "libc/nt/enum/processcreationflags.h"
#include "libc/nt/memory.h"
#include "libc/nt/process.h"
#include "libc/nt/runtime.h"
#include "libc/nt/struct/processinformation.h"
#include "libc/nt/struct/securityattributes.h"
#include "libc/nt/struct/startupinfo.h"
struct SpawnBlock {
union {
struct {
char16_t cmdline[ARG_MAX / 2];
char16_t envvars[ARG_MAX / 2];
char buf[ARG_MAX];
};
char __pad[ROUNDUP(ARG_MAX / 2 * 3 * sizeof(char16_t), FRAMESIZE)];
};
};
/**
* Spawns process on Windows NT.
*
* This function delegates to CreateProcess() with UTF-8 â UTF-16
* translation and argv escaping. Please note this will NOT escape
* command interpreter syntax.
*
* @param prog won't be PATH searched
* @param argv specifies prog arguments
* @param envp[ð¶,m-2] specifies "foo=bar" environment variables, which
* don't need to be passed in sorted order; however, this function
* goes faster the closer they are to sorted
* @param envp[m-1] is NULL
* @param extravar is added to envp to avoid setenv() in caller
* @param bInheritHandles means handles already marked inheritable will
* be inherited; which, assuming the System V wrapper functions are
* being used, should mean (1) all files and sockets that weren't
* opened with O_CLOEXEC; and (2) all memory mappings
* @param opt_out_lpProcessInformation can be used to return process and
* thread IDs to parent, as well as open handles that need close()
* @return 0 on success, or -1 w/ errno
* @see spawnve() which abstracts this function
*/
textwindows int ntspawn(
const char *prog, char *const argv[], char *const envp[],
const char *extravar, struct NtSecurityAttributes *opt_lpProcessAttributes,
struct NtSecurityAttributes *opt_lpThreadAttributes, bool32 bInheritHandles,
uint32_t dwCreationFlags, const char16_t *opt_lpCurrentDirectory,
const struct NtStartupInfo *lpStartupInfo,
struct NtProcessInformation *opt_out_lpProcessInformation) {
int rc;
int64_t handle;
struct SpawnBlock *block;
char16_t prog16[PATH_MAX];
rc = -1;
block = NULL;
if (__mkntpath(prog, prog16) == -1) return -1;
// we can't call malloc() because we're higher in the topological order
// we can't call kmalloc() because fork() calls this when kmalloc is locked
if ((handle = CreateFileMapping(-1, 0, pushpop(kNtPageReadwrite), 0,
sizeof(*block), 0)) &&
(block = MapViewOfFileEx(handle, kNtFileMapRead | kNtFileMapWrite, 0, 0,
sizeof(*block), 0)) &&
mkntcmdline(block->cmdline, argv) != -1 &&
mkntenvblock(block->envvars, envp, extravar, block->buf) != -1 &&
CreateProcess(prog16, block->cmdline, opt_lpProcessAttributes,
opt_lpThreadAttributes, bInheritHandles,
dwCreationFlags | kNtCreateUnicodeEnvironment |
kNtInheritParentAffinity,
block->envvars, opt_lpCurrentDirectory, lpStartupInfo,
opt_out_lpProcessInformation)) {
rc = 0;
}
if (block) UnmapViewOfFile(block);
if (handle) CloseHandle(handle);
return __fix_enotdir(rc, prog16);
}
| 5,268 | 101 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/stat64.S | /*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-â
âvi: set et ft=asm ts=8 tw=8 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â This is free and unencumbered software released into the public domain. â
â â
â Anyone is free to copy, modify, publish, use, compile, sell, or â
â distribute this software, either in source code form or as a compiled â
â binary, for any purpose, commercial or non-commercial, and by any â
â means. â
â â
â In jurisdictions that recognize copyright laws, the author or authors â
â of this software dedicate any and all copyright interest in the â
â software to the public domain. We make this dedication for the benefit â
â of the public at large and to the detriment of our heirs and â
â successors. We intend this dedication to be an overt act of â
â relinquishment in perpetuity of all present and future rights to this â
â software under copyright law. â
â â
â THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, â
â EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF â
â MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. â
â IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR â
â OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, â
â ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR â
â OTHER DEALINGS IN THE SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/macros.internal.h"
stat64: jmp stat
.endfn stat64,globl
| 2,589 | 31 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/close_range.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2022 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/intrin/strace.internal.h"
#include "libc/sysv/errfuns.h"
/**
* Closes inclusive range of file descriptors, e.g.
*
* // close all non-stdio file descriptors
* if (close_range(3, -1, 0) == -1) {
* for (int i = 3; i < 256; ++i) {
* close(i);
* }
* }
*
* The following flags are available:
*
* - `CLOSE_RANGE_UNSHARE` (Linux-only)
* - `CLOSE_RANGE_CLOEXEC` (Linux-only)
*
* This is only supported on Linux 5.9+ and FreeBSD 13+. Consider using
* closefrom() which will work on OpenBSD too.
*
* @return 0 on success, or -1 w/ errno
* @error EINVAL if flags are bad or first is greater than last
* @error EMFILE if a weird race condition happens on Linux
* @error ENOSYS if not Linux 5.9+ or FreeBSD 13+
* @error ENOMEM on Linux maybe
* @see closefrom()
*/
int close_range(unsigned int first, unsigned int last, unsigned int flags) {
int rc;
if (IsLinux() || IsFreebsd()) {
rc = sys_close_range(first, last, flags);
} else {
rc = enosys();
}
STRACE("close_range(%d, %d, %#x) â %d% m", first, last, flags, rc);
return rc;
}
| 3,044 | 60 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/getntsyspath.S | /*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-â
âvi: set et ft=asm ts=8 tw=8 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/dce.h"
#include "libc/macros.internal.h"
// Obtains WIN32 magic path, e.g. GetTempPathA.
//
// @param rax is address of ANSI path provider function
// @param rdi is output buffer
// @param rdx is output buffer size in bytes that's >0
// @return eax is string length w/ NUL that's ⤠edx
// @return rdi is rdi+edx
.text.startup
__getntsyspath:
push %rbp
mov %rsp,%rbp
push %rdx
movpp %rdi,%rcx # call f=%rax(p1=%rcx,p2=%rdx)
sub $40,%rsp
call *%rax
testb IsWindows()
jz 3f
mov (%rdi),%cl # turn c:\... into \c\...
movb $'\\',(%rdi)
mov %cl,1(%rdi)
movb $'\\',2(%rdi)
3: xor %edx,%edx
mov -8(%rbp),%ecx # restore %edx param as %ecx
cmp %eax,%ecx # use current dir on overflow
cmovbe %edx,%eax
cmp $1,%eax # leave empty strings empty
jbe 1f
cmpb $'\\',-1(%rdi,%rax) # guarantee trailing slash
je 1f
movw $'\\',(%rdi,%rax)
inc %eax
1: inc %rdi # change backslash to slash
cmpb $'\\',-1(%rdi)
jne 2f
movb $'/',-1(%rdi)
2: .loop 1b
leave
ret
.endfn __getntsyspath,globl,hidden
| 2,860 | 61 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/closefrom.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2022 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/intrin/strace.internal.h"
#include "libc/limits.h"
#include "libc/sysv/errfuns.h"
/**
* Closes extra file descriptors, e.g.
*
* if (closefrom(3))
* for (int i = 3; i < 256; ++i)
* close(i);
*
* @return 0 on success, or -1 w/ errno
* @raise EBADF if `first` is negative
* @raise ENOSYS if not Linux 5.9+, FreeBSD 8+, OpenBSD, or NetBSD
* @raise EBADF on OpenBSD if `first` is greater than highest fd
* @raise EINVAL if flags are bad or first is greater than last
* @raise EMFILE if a weird race condition happens on Linux
* @raise ECANCELED if thread was cancelled in masked mode
* @raise EINTR possibly on OpenBSD
* @raise ENOMEM on Linux maybe
*/
int closefrom(int first) {
int rc, err;
if (first < 0) {
// consistent with openbsd
// freebsd allows this but it's dangerous
// necessary on linux due to type signature
rc = ebadf();
} else if (IsFreebsd() || IsOpenbsd()) {
rc = sys_closefrom(first);
} else if (IsLinux()) {
rc = sys_close_range(first, 0xffffffffu, 0);
} else if (IsNetbsd()) {
rc = __sys_fcntl(first, 10 /*F_CLOSEM*/, first);
} else {
rc = enosys();
}
STRACE("closefrom(%d) â %d% m", first, rc);
return rc;
}
| 3,186 | 63 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/wait4.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/wait4.h"
#include "libc/calls/calls.h"
#include "libc/calls/cp.internal.h"
#include "libc/calls/struct/rusage.internal.h"
#include "libc/dce.h"
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/strace.internal.h"
#include "libc/sysv/errfuns.h"
/**
* Waits for status to change on process.
*
* @param pid >0 targets specific process, =0 means any proc in a group,
* -1 means any child process, <-1 means any proc in specific group
* @param opt_out_wstatus optionally returns status code, and *wstatus
* may be inspected using WEEXITSTATUS(), etc.
* @param options can have WNOHANG, WUNTRACED, WCONTINUED, etc.
* @param opt_out_rusage optionally returns accounting data
* @return process id of terminated child or -1 w/ errno
* @cancellationpoint
* @asyncsignalsafe
* @restartable
*/
int wait4(int pid, int *opt_out_wstatus, int options,
struct rusage *opt_out_rusage) {
int rc, ws = 0;
BEGIN_CANCELLATION_POINT;
if (IsAsan() &&
((opt_out_wstatus &&
!__asan_is_valid(opt_out_wstatus, sizeof(*opt_out_wstatus))) ||
(opt_out_rusage &&
!__asan_is_valid(opt_out_rusage, sizeof(*opt_out_rusage))))) {
rc = efault();
} else if (!IsWindows()) {
rc = sys_wait4(pid, &ws, options, opt_out_rusage);
} else {
rc = sys_wait4_nt(pid, &ws, options, opt_out_rusage);
}
if (rc != -1 && opt_out_wstatus) *opt_out_wstatus = ws;
END_CANCELLATION_POINT;
STRACE("wait4(%d, [%#x], %d, %p) â %d% m", pid, ws, options, opt_out_rusage,
rc);
return rc;
}
| 3,401 | 65 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/getpgid.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2021 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/intrin/strace.internal.h"
/**
* Returns process group id.
*/
int getpgid(int pid) {
int rc;
if (!IsWindows()) {
rc = sys_getpgid(pid);
} else {
rc = getpid();
}
STRACE("%s(%d) â %d% m", "getpgid", pid, rc);
return rc;
}
| 2,194 | 37 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/write-nt.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/assert.h"
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/sig.internal.h"
#include "libc/calls/struct/iovec.h"
#include "libc/calls/struct/iovec.internal.h"
#include "libc/calls/syscall_support-nt.internal.h"
#include "libc/calls/wincrash.internal.h"
#include "libc/errno.h"
#include "libc/intrin/strace.internal.h"
#include "libc/intrin/weaken.h"
#include "libc/nt/errors.h"
#include "libc/nt/files.h"
#include "libc/nt/runtime.h"
#include "libc/runtime/internal.h"
#include "libc/runtime/runtime.h"
#include "libc/sysv/consts/sicode.h"
#include "libc/sysv/consts/sig.h"
#include "libc/sysv/errfuns.h"
static textwindows ssize_t sys_write_nt_impl(int fd, void *data, size_t size,
ssize_t offset) {
bool32 ok;
int64_t h, p;
uint32_t err, sent;
struct NtOverlapped overlap;
h = g_fds.p[fd].handle;
if (offset != -1) {
// windows changes the file pointer even if overlapped is passed
_npassert(SetFilePointerEx(h, 0, &p, SEEK_CUR));
}
ok = WriteFile(h, data, _clampio(size), &sent,
_offset2overlap(h, offset, &overlap));
if (offset != -1) {
// windows clobbers file pointer even on error
_npassert(SetFilePointerEx(h, p, 0, SEEK_SET));
}
if (ok) {
return sent;
}
switch (GetLastError()) {
// case kNtErrorInvalidHandle:
// return ebadf(); /* handled by consts.sh */
// case kNtErrorNotEnoughQuota:
// return edquot(); /* handled by consts.sh */
case kNtErrorBrokenPipe: // broken pipe
case kNtErrorNoData: // closing named pipe
if (_weaken(__sig_raise)) {
_weaken(__sig_raise)(SIGPIPE, SI_KERNEL);
return epipe();
} else {
STRACE("broken pipe");
_Exitr(128 + EPIPE);
}
case kNtErrorAccessDenied: // write doesn't return EACCESS
return ebadf();
default:
return __winerr();
}
}
textwindows ssize_t sys_write_nt(int fd, const struct iovec *iov, size_t iovlen,
ssize_t opt_offset) {
ssize_t rc;
size_t i, total;
uint32_t size, wrote;
struct NtOverlapped overlap;
if (opt_offset < -1) return einval();
while (iovlen && !iov[0].iov_len) iov++, iovlen--;
if (iovlen) {
for (total = i = 0; i < iovlen; ++i) {
if (!iov[i].iov_len) continue;
rc = sys_write_nt_impl(fd, iov[i].iov_base, iov[i].iov_len, opt_offset);
if (rc == -1) return -1;
total += rc;
if (opt_offset != -1) opt_offset += rc;
if (rc < iov[i].iov_len) break;
}
return total;
} else {
return sys_write_nt_impl(fd, NULL, 0, opt_offset);
}
}
| 4,506 | 108 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/sigtimedwait.h | #ifndef COSMOPOLITAN_LIBC_CALLS_SIGTIMEDWAIT_H_
#define COSMOPOLITAN_LIBC_CALLS_SIGTIMEDWAIT_H_
#include "libc/calls/struct/siginfo.h"
#include "libc/calls/struct/sigset.h"
#include "libc/calls/struct/timespec.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
int sigtimedwait(const sigset_t *, siginfo_t *, const struct timespec *);
int sigwaitinfo(const sigset_t *, siginfo_t *);
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_CALLS_SIGTIMEDWAIT_H_ */
| 517 | 15 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/syscall-nt.internal.h | #ifndef COSMOPOLITAN_LIBC_CALLS_SYSCALL_NT_INTERNAL_H_
#define COSMOPOLITAN_LIBC_CALLS_SYSCALL_NT_INTERNAL_H_
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
bool32 sys_isatty_nt(int) _Hide;
char *sys_getcwd_nt(char *, size_t) _Hide;
int sys_chdir_nt(const char *) _Hide;
int sys_close_epoll_nt(int) _Hide;
int sys_dup_nt(int, int, int, int) _Hide;
int sys_execve_nt(const char *, char *const[], char *const[]) _Hide;
int sys_faccessat_nt(int, const char *, int, uint32_t) _Hide;
int sys_fadvise_nt(int, uint64_t, uint64_t, int) _Hide;
int sys_fchdir_nt(int) _Hide;
int sys_fchmodat_nt(int, const char *, uint32_t, int) _Hide;
int sys_fcntl_nt(int, int, uintptr_t) _Hide;
int sys_fdatasync_nt(int) _Hide;
int sys_flock_nt(int, int) _Hide;
int sys_fork_nt(uint32_t) _Hide;
int sys_ftruncate_nt(int64_t, uint64_t) _Hide;
int sys_getloadavg_nt(double *, int) _Hide;
int sys_getppid_nt(void) _Hide;
int sys_getpriority_nt(int, unsigned) _Hide;
int sys_kill_nt(int, int) _Hide;
int sys_linkat_nt(int, const char *, int, const char *) _Hide;
int sys_madvise_nt(void *, size_t, int) _Hide;
int sys_mkdirat_nt(int, const char *, uint32_t) _Hide;
int sys_msync_nt(char *, size_t, int) _Hide;
int sys_open_nt(int, const char *, uint32_t, int32_t)
dontdiscard _Hide;
int sys_pipe_nt(int[hasatleast 2], unsigned) _Hide;
int sys_renameat_nt(int, const char *, int, const char *) _Hide;
int sys_sched_yield_nt(void) _Hide;
int sys_setpriority_nt(int, unsigned, int) _Hide;
int sys_symlinkat_nt(const char *, int, const char *) _Hide;
int sys_sync_nt(void) _Hide;
int sys_truncate_nt(const char *, uint64_t) _Hide;
int sys_unlinkat_nt(int, const char *, int) _Hide;
int64_t sys_lseek_nt(int, int64_t, int) _Hide;
ssize_t sys_readlinkat_nt(int, const char *, char *, size_t) _Hide;
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_CALLS_SYSCALL_NT_INTERNAL_H_ */
| 1,907 | 45 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/renameat-nt.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/syscall_support-nt.internal.h"
#include "libc/nt/enum/movefileexflags.h"
#include "libc/nt/files.h"
textwindows int sys_renameat_nt(int olddirfd, const char *oldpath, int newdirfd,
const char *newpath) {
char16_t oldpath16[PATH_MAX];
char16_t newpath16[PATH_MAX];
if (__mkntpathat(olddirfd, oldpath, 0, oldpath16) == -1 ||
__mkntpathat(newdirfd, newpath, 0, newpath16) == -1) {
return -1;
}
if (MoveFileEx(oldpath16, newpath16, kNtMovefileReplaceExisting)) {
return 0;
} else {
return __fix_enotdir3(-1, oldpath16, newpath16);
}
}
| 2,453 | 37 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/dup3.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/syscall-nt.internal.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/intrin/strace.internal.h"
#include "libc/sysv/consts/o.h"
#include "libc/sysv/errfuns.h"
/**
* Duplicates file descriptor/handle.
*
* On Windows, we can't guarantee the desired file descriptor is used.
* We can however remap the standard handles (non-atomically) if their
* symbolic names are used.
*
* @param oldfd isn't closed afterwards
* @param newfd if already assigned, is silently closed beforehand;
* unless it's equal to oldfd, in which case dup2() is a no-op
* @param flags may have O_CLOEXEC which is needed to preserve the
* close-on-execve() state after file descriptor duplication
* @return newfd on success, or -1 w/ errno
* @raise ENOTSUP if `oldfd` is a zip file descriptor
* @raise EPERM if pledge() is in play without stdio
* @raise EINVAL if `flags` has unsupported bits
* @raise EINTR if a signal handler was called
* @raise EBADF is `newfd` negative or too big
* @raise EINVAL if `newfd` equals oldfd
* @raise EBADF is `oldfd` isn't open
* @see dup(), dup2()
*/
int dup3(int oldfd, int newfd, int flags) {
int rc;
if (oldfd == newfd || (flags & ~O_CLOEXEC)) {
rc = einval(); // NetBSD doesn't do this
} else if (oldfd < 0 || newfd < 0) {
rc = ebadf();
} else if (__isfdkind(oldfd, kFdZip)) {
rc = enotsup();
} else if (!IsWindows()) {
rc = sys_dup3(oldfd, newfd, flags);
} else {
rc = sys_dup_nt(oldfd, newfd, flags, -1);
}
STRACE("dup3(%d, %d, %d) â %d% m", oldfd, newfd, flags, rc);
return rc;
}
| 3,517 | 66 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/fixupnewfd.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/assert.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/calls/syscall_support-sysv.internal.h"
#include "libc/sysv/consts/f.h"
#include "libc/sysv/consts/fd.h"
#include "libc/sysv/consts/o.h"
// Applies file descriptor fixups on XNU or old Linux.
// See __fixupnewsockfd() for socket file descriptors.
int __fixupnewfd(int fd, int flags) {
if (fd != -1) {
if (flags & O_CLOEXEC) {
_npassert(!__sys_fcntl(fd, F_SETFD, FD_CLOEXEC));
}
}
return fd;
}
| 2,335 | 36 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/ioctl_default.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/internal.h"
#include "libc/calls/ioctl.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/intrin/weaken.h"
#include "libc/nt/winsock.h"
#include "libc/sock/internal.h"
#include "libc/sysv/errfuns.h"
int ioctl_default(int fd, uint64_t request, ...) {
int rc;
void *arg;
va_list va;
int64_t handle;
va_start(va, request);
arg = va_arg(va, void *);
va_end(va);
if (!IsWindows()) {
return sys_ioctl(fd, request, arg);
} else if (__isfdopen(fd)) {
if (g_fds.p[fd].kind == kFdSocket) {
handle = __getfdhandleactual(fd);
if ((rc = _weaken(__sys_ioctlsocket_nt)(handle, request, arg)) != -1) {
return rc;
} else {
return _weaken(__winsockerr)();
}
} else {
return eopnotsupp();
}
} else {
return ebadf();
}
}
| 2,682 | 53 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/oldbench.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/state.internal.h"
#include "libc/calls/struct/timespec.h"
#include "libc/dce.h"
#include "libc/intrin/bits.h"
#include "libc/intrin/safemacros.internal.h"
#include "libc/intrin/strace.internal.h"
#include "libc/macros.internal.h"
#include "libc/nexgen32e/rdtsc.h"
#include "libc/nexgen32e/x86feature.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/clock.h"
#include "libc/thread/tls.h"
#include "libc/time/time.h"
static struct Now {
bool once;
uint64_t k0;
long double r0, cpn;
} g_now;
static long double GetTimeSample(void) {
uint64_t tick1, tick2;
long double time1, time2;
sched_yield();
time1 = dtime(CLOCK_MONOTONIC);
tick1 = rdtsc();
nanosleep(&(struct timespec){0, 1000000}, NULL);
time2 = dtime(CLOCK_MONOTONIC);
tick2 = rdtsc();
return (time2 - time1) * 1e9 / MAX(1, tick2 - tick1);
}
static long double MeasureNanosPerCycle(void) {
int i, n;
long double avg, samp;
if (__tls_enabled) __get_tls()->tib_flags |= TIB_FLAG_TIME_CRITICAL;
if (IsWindows()) {
n = 30;
} else {
n = 20;
}
for (avg = 1.0L, i = 1; i < n; ++i) {
samp = GetTimeSample();
avg += (samp - avg) / i;
}
if (__tls_enabled) __get_tls()->tib_flags &= ~TIB_FLAG_TIME_CRITICAL;
STRACE("MeasureNanosPerCycle cpn*1000=%d", (long)(avg * 1000));
return avg;
}
static void Refresh(void) {
struct Now now;
now.cpn = MeasureNanosPerCycle();
now.r0 = dtime(CLOCK_REALTIME);
now.k0 = rdtsc();
now.once = true;
memcpy(&g_now, &now, sizeof(now));
}
long double ConvertTicksToNanos(double ticks) {
if (!g_now.once) Refresh();
return ticks * g_now.cpn; /* pico scale */
}
| 3,510 | 83 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/ioctl_tiocgwinsz-nt.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/state.internal.h"
#include "libc/calls/struct/fd.internal.h"
#include "libc/calls/struct/termios.h"
#include "libc/calls/struct/winsize.h"
#include "libc/calls/syscall_support-nt.internal.h"
#include "libc/errno.h"
#include "libc/intrin/strace.internal.h"
#include "libc/log/log.h"
#include "libc/nt/console.h"
#include "libc/nt/enum/startf.h"
#include "libc/nt/startupinfo.h"
#include "libc/nt/struct/consolescreenbufferinfoex.h"
#include "libc/str/str.h"
#include "libc/sysv/errfuns.h"
textwindows int ioctl_tiocgwinsz_nt(struct Fd *fd, struct winsize *ws) {
int i, e, rc;
uint32_t mode;
struct Fd *fds[3];
struct NtStartupInfo startinfo;
struct NtConsoleScreenBufferInfoEx sbinfo;
rc = -1;
e = errno;
if (ws) {
__fds_lock();
fds[0] = fd, fds[1] = g_fds.p + 1, fds[2] = g_fds.p + 0;
GetStartupInfo(&startinfo);
for (i = 0; i < ARRAYLEN(fds); ++i) {
if (fds[i]->kind == kFdFile || fds[i]->kind == kFdConsole) {
if (GetConsoleMode(__getfdhandleactual(i), &mode)) {
bzero(&sbinfo, sizeof(sbinfo));
sbinfo.cbSize = sizeof(sbinfo);
if (GetConsoleScreenBufferInfoEx(__getfdhandleactual(i), &sbinfo)) {
ws->ws_col = sbinfo.srWindow.Right - sbinfo.srWindow.Left + 1;
ws->ws_row = sbinfo.srWindow.Bottom - sbinfo.srWindow.Top + 1;
ws->ws_xpixel = 0;
ws->ws_ypixel = 0;
errno = e;
rc = 0;
break;
} else if (startinfo.dwFlags & kNtStartfUsecountchars) {
ws->ws_col = startinfo.dwXCountChars;
ws->ws_row = startinfo.dwYCountChars;
ws->ws_xpixel = 0;
ws->ws_ypixel = 0;
errno = e;
rc = 0;
break;
} else {
__winerr();
}
} else {
enotty();
}
} else {
ebadf();
}
}
__fds_unlock();
} else {
efault();
}
return rc;
}
| 3,872 | 85 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/CPU_ZERO.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2022 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/struct/cpuset.h"
#include "libc/str/str.h"
void CPU_ZERO(cpu_set_t *set) {
bzero(set, sizeof(*set));
}
| 1,963 | 25 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/getppid-nt.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2021 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/dce.h"
#include "libc/nt/nt/process.h"
#include "libc/nt/ntdll.h"
#include "libc/nt/process.h"
#include "libc/nt/runtime.h"
#include "libc/nt/struct/processbasicinformation.h"
textwindows int sys_getppid_nt(void) {
struct NtProcessBasicInformation ProcessInformation;
uint32_t gotsize = 0;
if (!NtError(
NtQueryInformationProcess(GetCurrentProcess(), 0, &ProcessInformation,
sizeof(ProcessInformation), &gotsize)) &&
gotsize >= sizeof(ProcessInformation) &&
ProcessInformation.InheritedFromUniqueProcessId) {
/* TODO(jart): Fix type mismatch and do we need to close this? */
return ProcessInformation.InheritedFromUniqueProcessId;
}
return GetCurrentProcessId();
}
| 2,593 | 39 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/sync-nt.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/syscall-nt.internal.h"
#include "libc/calls/syscall_support-nt.internal.h"
#include "libc/nt/createfile.h"
#include "libc/nt/enum/accessmask.h"
#include "libc/nt/enum/creationdisposition.h"
#include "libc/nt/enum/filesharemode.h"
#include "libc/nt/files.h"
#include "libc/nt/runtime.h"
#include "libc/sysv/consts/ok.h"
// Flushes all open file handles and, if possible, all disk drives.
textwindows int sys_sync_nt(void) {
unsigned i;
int64_t volume;
uint32_t drives;
char16_t path[] = u"\\\\.\\C:";
for (i = 0; i < g_fds.n; ++i) {
if (g_fds.p[i].kind == kFdFile) {
FlushFileBuffers(g_fds.p[i].handle);
}
}
for (drives = GetLogicalDrives(), i = 0; i <= 'Z' - 'A'; ++i) {
if (!(drives & (1 << i))) continue;
path[4] = 'A' + i;
if (ntaccesscheck(path, R_OK | W_OK) != -1) {
if ((volume = CreateFile(
path, kNtFileReadAttributes,
kNtFileShareRead | kNtFileShareWrite | kNtFileShareDelete, 0,
kNtOpenExisting, 0, 0)) != -1) {
FlushFileBuffers(volume);
CloseHandle(volume);
}
}
}
return 0;
}
| 3,029 | 57 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/statfs-nt.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2022 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/state.internal.h"
#include "libc/calls/struct/statfs.internal.h"
#include "libc/calls/syscall_support-nt.internal.h"
#include "libc/nt/createfile.h"
#include "libc/nt/enum/accessmask.h"
#include "libc/nt/enum/creationdisposition.h"
#include "libc/nt/enum/fileflagandattributes.h"
#include "libc/nt/enum/filesharemode.h"
#include "libc/nt/runtime.h"
textwindows int sys_statfs_nt(const char *path, struct statfs *sf) {
int rc;
int64_t h;
char16_t path16[PATH_MAX];
if (__mkntpath(path, path16) == -1) return -1;
h = __fix_enotdir(
CreateFile(path16, kNtFileGenericRead,
kNtFileShareRead | kNtFileShareWrite | kNtFileShareDelete,
&kNtIsInheritable, kNtOpenExisting,
kNtFileAttributeNormal | kNtFileFlagBackupSemantics, 0),
path16);
if (h == -1) return -1;
rc = sys_fstatfs_nt(h, sf);
CloseHandle(h);
return rc;
}
| 2,750 | 45 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/tmpfd.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2020 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/runtime/runtime.h"
#include "libc/stdio/rand.h"
#include "libc/stdio/temp.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/o.h"
#define _O_TMPFILE 000020200000
/**
* Returns file descriptor of open anonymous file, e.g.
*
* int fd;
* if ((fd = tmpfd()) == -1) {
* perror("tmpfd");
* exit(1);
* }
* // do stuff
* close(f);
*
* This creates a secure temporary file inside $TMPDIR. If it isn't
* defined, then /tmp is used on UNIX and GetTempPath() is used on the
* New Technology. This resolution of $TMPDIR happens once in a ctor,
* which is copied to the `kTmpDir` global.
*
* Once close() is called, the returned file is guaranteed to be deleted
* automatically. On UNIX the file is unlink()'d before this function
* returns. On the New Technology it happens upon close().
*
* On newer Linux only (c. 2013) it's possible to turn the anonymous
* returned file back into a real file, by doing this:
*
* linkat(AT_FDCWD, _gc(xasprintf("/proc/self/fd/%d", fd)),
* AT_FDCWD, "real.txt", AT_SYMLINK_FOLLOW)
*
* On the New Technology, temporary files created by this function
* should have better performance, because `kNtFileAttributeTemporary`
* asks the kernel to more aggressively cache and reduce i/o ops.
*
* The tmpfd() function should be favored over `open(O_TMPFILE)` because
* the latter only works on Linux, and will cause open() failures on all
* other platforms.
*
* @return file descriptor on success, or -1 w/ errno
* @raise ECANCELED if thread was cancelled in masked mode
* @raise EINTR if signal was delivered
* @see tmpfile() for stdio version
* @cancellationpoint
* @asyncsignalsafe
* @threadsafe
* @vforksafe
*/
int tmpfd(void) {
FILE *f;
unsigned x;
int fd, i, j, e;
char path[PATH_MAX], *p;
e = errno;
if (IsLinux() && (fd = open(kTmpPath, O_RDWR | _O_TMPFILE, 0600)) != -1) {
return fd;
}
errno = e;
p = path;
p = stpcpy(p, kTmpPath);
p = stpcpy(p, "tmp.");
if (program_invocation_short_name &&
strlen(program_invocation_short_name) < 128) {
p = stpcpy(p, program_invocation_short_name);
*p++ = '.';
}
for (i = 0; i < 10; ++i) {
x = _rand64();
for (j = 0; j < 6; ++j) {
p[j] = "0123456789abcdefghijklmnopqrstuvwxyz"[x % 36];
x /= 36;
}
p[j] = 0;
e = errno;
if ((fd = open(path,
O_RDWR | O_CREAT | O_EXCL | (IsWindows() ? _O_TMPFILE : 0),
0600)) != -1) {
if (!IsWindows()) {
if (unlink(path)) {
notpossible;
}
}
return fd;
} else if (errno == EEXIST) {
errno = e;
} else {
break;
}
}
return -1;
}
| 4,630 | 116 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/virtualmax2.c | /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :viâ
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ¡
â Copyright 2023 Justine Alexandra Roberts Tunney â
â â
â Permission to use, copy, modify, and/or distribute this software for â
â any purpose with or without fee is hereby granted, provided that the â
â above copyright notice and this permission notice appear in all copies. â
â â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR â
â PERFORMANCE OF THIS SOFTWARE. â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/runtime/runtime.h"
#ifndef __x86_64__
size_t __virtualmax = -1;
#endif /* __x86_64__ */
| 1,941 | 25 | jart/cosmopolitan | false |
cosmopolitan/libc/calls/calls.h | #ifndef COSMOPOLITAN_LIBC_CALLS_SYSCALLS_H_
#define COSMOPOLITAN_LIBC_CALLS_SYSCALLS_H_
#define _POSIX_VERSION 200809L
#define _POSIX2_VERSION _POSIX_VERSION
#define _XOPEN_VERSION 700
#define _POSIX_MAPPED_FILES _POSIX_VERSION
#define _POSIX_FSYNC _POSIX_VERSION
#define _POSIX_IPV6 _POSIX_VERSION
#define _POSIX_THREADS _POSIX_VERSION
#define _POSIX_THREAD_PROCESS_SHARED _POSIX_VERSION
#define _POSIX_THREAD_SAFE_FUNCTIONS _POSIX_VERSION
#define _POSIX_THREAD_ATTR_STACKADDR _POSIX_VERSION
#define _POSIX_THREAD_ATTR_STACKSIZE _POSIX_VERSION
#define _POSIX_THREAD_PRIORITY_SCHEDULING _POSIX_VERSION
#define _POSIX_THREAD_CPUTIME _POSIX_VERSION
#define _POSIX_TIMEOUTS _POSIX_VERSION
#define _POSIX_MONOTONIC_CLOCK _POSIX_VERSION
#define _POSIX_CPUTIME _POSIX_VERSION
#define _POSIX_BARRIERS _POSIX_VERSION
#define _POSIX_SPIN_LOCKS _POSIX_VERSION
#define _POSIX_READER_WRITER_LOCKS _POSIX_VERSION
#define _POSIX_SEMAPHORES _POSIX_VERSION
#define _POSIX_SHARED_MEMORY_OBJECTS _POSIX_VERSION
#define _POSIX_MEMLOCK_RANGE _POSIX_VERSION
#define EOF -1 /* end of file */
#define WEOF -1u /* end of file (multibyte) */
#define _IOFBF 0 /* fully buffered */
#define _IOLBF 1 /* line buffered */
#define _IONBF 2 /* no buffering */
#define SEEK_SET 0 /* relative to beginning */
#define SEEK_CUR 1 /* relative to current position */
#define SEEK_END 2 /* relative to end */
#define __WALL 0x40000000 /* Wait on all children, regardless of type */
#define __WCLONE 0x80000000 /* Wait only on non-SIGCHLD children */
#define SIG_ERR ((void (*)(int))(-1))
#define SIG_DFL ((void (*)(int))0)
#define SIG_IGN ((void (*)(int))1)
#define MAP_FAILED ((void *)-1)
#define ARCH_SET_GS 0x1001
#define ARCH_SET_FS 0x1002
#define ARCH_GET_FS 0x1003
#define ARCH_GET_GS 0x1004
#define MAP_HUGE_2MB (21 << MAP_HUGE_SHIFT)
#define MAP_HUGE_1GB (30 << MAP_HUGE_SHIFT)
#define WCOREDUMP(s) (128 & (s))
#define WEXITSTATUS(s) ((0xff00 & (s)) >> 8)
#define WIFCONTINUED(s) ((s) == 0xffff)
#define WIFEXITED(s) (!WTERMSIG(s))
#define WIFSIGNALED(s) (((signed char)((127 & (s)) + 1) >> 1) > 0)
#define WIFSTOPPED(s) ((255 & (s)) == 127)
#define WSTOPSIG(s) WEXITSTATUS(s)
#define WTERMSIG(s) (127 & (s))
#define W_STOPCODE(s) ((s) << 8 | 0177)
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
/*ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ
â cosmopolitan § system calls ââ¬âââ¼
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
typedef int sig_atomic_t;
bool fileexists(const char *);
bool isdirectory(const char *);
bool isexecutable(const char *);
bool isregularfile(const char *);
bool issymlink(const char *);
bool32 isatty(int) nosideeffect;
bool32 ischardev(int) nosideeffect;
char *commandv(const char *, char *, size_t);
char *get_current_dir_name(void) dontdiscard;
char *getcwd(char *, size_t);
char *realpath(const char *, char *);
char *replaceuser(const char *) dontdiscard;
char *ttyname(int);
int access(const char *, int) dontthrow;
int arch_prctl();
int chdir(const char *);
int chmod(const char *, unsigned);
int chown(const char *, unsigned, unsigned);
int chroot(const char *);
int close(int);
int close_range(unsigned, unsigned, unsigned);
int closefrom(int);
int creat(const char *, unsigned);
int dup(int);
int dup2(int, int);
int dup3(int, int, int);
int eaccess(const char *, int);
int euidaccess(const char *, int);
int execl(const char *, const char *, ...) nullterminated();
int execle(const char *, const char *, ...) nullterminated((1));
int execlp(const char *, const char *, ...) nullterminated();
int execv(const char *, char *const[]);
int execve(const char *, char *const[], char *const[]);
int execvp(const char *, char *const[]);
int execvpe(const char *, char *const[], char *const[]);
int faccessat(int, const char *, int, int);
int fadvise(int, uint64_t, uint64_t, int);
int fchdir(int);
int fchmod(int, unsigned) dontthrow;
int fchmodat(int, const char *, unsigned, int);
int fchown(int, unsigned, unsigned);
int fchownat(int, const char *, unsigned, unsigned, int);
int fcntl(int, int, ...);
int fdatasync(int);
int fexecve(int, char *const[], char *const[]);
int flock(int, int);
int fork(void);
int fsync(int);
int ftruncate(int, int64_t);
int getdomainname(char *, size_t);
int getgroups(int, unsigned[]);
int gethostname(char *, size_t);
int getloadavg(double *, int);
int getpgid(int) libcesque;
int getpgrp(void) nosideeffect;
int getpid(void) nosideeffect libcesque;
int getppid(void);
int getpriority(int, unsigned);
int getresgid(unsigned *, unsigned *, unsigned *);
int getresuid(unsigned *, unsigned *, unsigned *);
int getsid(int) nosideeffect libcesque;
int gettid(void) libcesque;
int ioprio_get(int, int);
int ioprio_set(int, int, int);
int issetugid(void);
int kill(int, int);
int killpg(int, int);
int lchmod(const char *, unsigned);
int lchown(const char *, unsigned, unsigned);
int link(const char *, const char *) dontthrow;
int linkat(int, const char *, int, const char *, int);
int madvise(void *, uint64_t, int);
int makedirs(const char *, unsigned);
int memfd_create(const char *, unsigned int);
int mincore(void *, size_t, unsigned char *);
int mkdir(const char *, unsigned);
int mkdirat(int, const char *, unsigned);
int mkfifo(const char *, unsigned);
int mkfifoat(int, const char *, unsigned);
int mknod(const char *, unsigned, uint64_t);
int mknodat(int, const char *, int, uint64_t);
int nice(int);
int open(const char *, int, ...);
int openat(int, const char *, int, ...);
int pause(void);
int personality(uint64_t);
int pipe(int[hasatleast 2]);
int pipe2(int[hasatleast 2], int);
int pivot_root(const char *, const char *);
int pledge(const char *, const char *);
int posix_fadvise(int, int64_t, int64_t, int);
int posix_madvise(void *, uint64_t, int);
int prctl(int, ...);
int raise(int);
int reboot(int);
int remove(const char *);
int rename(const char *, const char *);
int renameat(int, const char *, int, const char *);
int renameat2(long, const char *, long, const char *, int);
int rmdir(const char *);
int sched_yield(void);
int seccomp(unsigned, unsigned, void *);
int setegid(unsigned);
int seteuid(unsigned);
int setfsgid(unsigned);
int setfsuid(unsigned);
int setgid(unsigned);
int setgroups(size_t, const unsigned[]);
int setpgid(int, int);
int setpgrp(void);
int setpriority(int, unsigned, int);
int setregid(unsigned, unsigned);
int setresgid(unsigned, unsigned, unsigned);
int setresuid(unsigned, unsigned, unsigned);
int setreuid(unsigned, unsigned);
int setsid(void);
int setuid(unsigned);
int sigignore(int);
int siginterrupt(int, int);
int symlink(const char *, const char *);
int symlinkat(const char *, int, const char *);
int sync_file_range(int, int64_t, int64_t, unsigned);
int sys_iopl(int);
int sys_mlock(const void *, size_t);
int sys_mlock2(const void *, size_t, int);
int sys_mlockall(int);
int sys_munlock(const void *, size_t);
int sys_munlockall(void);
int sys_ptrace(int, ...);
int sys_sysctl(const int *, unsigned, void *, size_t *, void *, size_t);
int tcgetpgrp(int);
int tcsetpgrp(int, int);
int tgkill(int, int, int);
int tkill(int, int);
int tmpfd(void);
int touch(const char *, unsigned);
int truncate(const char *, int64_t);
int ttyname_r(int, char *, size_t);
int unlink(const char *);
int unlink_s(const char **);
int unlinkat(int, const char *, int);
int unveil(const char *, const char *);
int usleep(unsigned);
int vfork(void) returnstwice;
int wait(int *);
int waitpid(int, int *, int);
intptr_t syscall(int, ...);
long ptrace(int, ...);
ssize_t copy_file_range(int, long *, int, long *, size_t, unsigned);
ssize_t copyfd(int, int64_t *, int, int64_t *, size_t, unsigned);
ssize_t getfiledescriptorsize(int);
ssize_t lseek(int, int64_t, int);
ssize_t pread(int, void *, size_t, int64_t);
ssize_t pwrite(int, const void *, size_t, int64_t);
ssize_t read(int, void *, size_t);
ssize_t readansi(int, char *, size_t);
ssize_t readlink(const char *, char *, size_t);
ssize_t readlinkat(int, const char *, char *, size_t);
ssize_t splice(int, int64_t *, int, int64_t *, size_t, unsigned);
ssize_t write(int, const void *, size_t);
unsigned getegid(void) nosideeffect;
unsigned geteuid(void) nosideeffect;
unsigned getgid(void) nosideeffect;
unsigned getuid(void) libcesque;
unsigned umask(unsigned);
void sync(void);
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_CALLS_SYSCALLS_H_ */
| 9,118 | 241 | jart/cosmopolitan | false |
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