File size: 68,201 Bytes
9375c9a |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 |
<html><!-- Created using the cpp_pretty_printer from the dlib C++ library. See http://dlib.net for updates. --><head><title>dlib C++ Library - gzlib.c</title></head><body bgcolor='white'><pre>
<font color='#009900'>/* gzlib.c -- zlib functions common to reading and writing gzip files
* Copyright (C) 2004, 2010, 2011, 2012, 2013 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/</font>
<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='gzguts.h.html'>gzguts.h</a>"
<font color='#0000FF'>#if</font> defined<font face='Lucida Console'>(</font>_WIN32<font face='Lucida Console'>)</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> <font color='#5555FF'>!</font>defined<font face='Lucida Console'>(</font>__BORLANDC__<font face='Lucida Console'>)</font>
# define LSEEK _lseeki64
<font color='#0000FF'>#else</font>
<font color='#0000FF'>#if</font> defined<font face='Lucida Console'>(</font>_LARGEFILE64_SOURCE<font face='Lucida Console'>)</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> _LFS64_LARGEFILE<font color='#5555FF'>-</font><font color='#979000'>0</font>
# define LSEEK lseek64
<font color='#0000FF'>#else</font>
# define LSEEK lseek
<font color='#0000FF'>#endif</font>
<font color='#0000FF'>#endif</font>
<font color='#009900'>/* Local functions */</font>
local <font color='#0000FF'><u>void</u></font> gz_reset <b><a name='OF'></a>OF</b><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>gz_statep<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
local gzFile gz_open <b><a name='OF'></a>OF</b><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font><font color='#0000FF'>const</font> <font color='#0000FF'><u>void</u></font> <font color='#5555FF'>*</font>, <font color='#0000FF'><u>int</u></font>, <font color='#0000FF'>const</font> <font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
<font color='#0000FF'>#if</font> defined UNDER_CE
<font color='#009900'>/* Map the Windows error number in ERROR to a locale-dependent error message
string and return a pointer to it. Typically, the values for ERROR come
from GetLastError.
The string pointed to shall not be modified by the application, but may be
overwritten by a subsequent call to gz_strwinerror
The gz_strwinerror function does not change the current setting of
GetLastError. */</font>
<font color='#0000FF'><u>char</u></font> ZLIB_INTERNAL <font color='#5555FF'>*</font><b><a name='gz_strwinerror'></a>gz_strwinerror</b> <font face='Lucida Console'>(</font>error<font face='Lucida Console'>)</font>
DWORD error;
<b>{</b>
<font color='#0000FF'>static</font> <font color='#0000FF'><u>char</u></font> buf[<font color='#979000'>1024</font>];
<font color='#0000FF'><u>wchar_t</u></font> <font color='#5555FF'>*</font>msgbuf;
DWORD lasterr <font color='#5555FF'>=</font> <font color='#BB00BB'>GetLastError</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
DWORD chars <font color='#5555FF'>=</font> <font color='#BB00BB'>FormatMessage</font><font face='Lucida Console'>(</font>FORMAT_MESSAGE_FROM_SYSTEM
<font color='#5555FF'>|</font> FORMAT_MESSAGE_ALLOCATE_BUFFER,
NULL,
error,
<font color='#979000'>0</font>, <font color='#009900'>/* Default language */</font>
<font face='Lucida Console'>(</font>LPVOID<font face='Lucida Console'>)</font><font color='#5555FF'>&</font>msgbuf,
<font color='#979000'>0</font>,
NULL<font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>chars <font color='#5555FF'>!</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font> <b>{</b>
<font color='#009900'>/* If there is an \r\n appended, zap it. */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>chars <font color='#5555FF'>></font><font color='#5555FF'>=</font> <font color='#979000'>2</font>
<font color='#5555FF'>&</font><font color='#5555FF'>&</font> msgbuf[chars <font color='#5555FF'>-</font> <font color='#979000'>2</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> '<font color='#FF0000'>\r</font>' <font color='#5555FF'>&</font><font color='#5555FF'>&</font> msgbuf[chars <font color='#5555FF'>-</font> <font color='#979000'>1</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> '<font color='#FF0000'>\n</font>'<font face='Lucida Console'>)</font> <b>{</b>
chars <font color='#5555FF'>-</font><font color='#5555FF'>=</font> <font color='#979000'>2</font>;
msgbuf[chars] <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<b>}</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>chars <font color='#5555FF'>></font> <font color='#0000FF'>sizeof</font> <font face='Lucida Console'>(</font>buf<font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> <font color='#979000'>1</font><font face='Lucida Console'>)</font> <b>{</b>
chars <font color='#5555FF'>=</font> <font color='#0000FF'>sizeof</font> <font face='Lucida Console'>(</font>buf<font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> <font color='#979000'>1</font>;
msgbuf[chars] <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<b>}</b>
<font color='#BB00BB'>wcstombs</font><font face='Lucida Console'>(</font>buf, msgbuf, chars <font color='#5555FF'>+</font> <font color='#979000'>1</font><font face='Lucida Console'>)</font>;
<font color='#BB00BB'>LocalFree</font><font face='Lucida Console'>(</font>msgbuf<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>else</font> <b>{</b>
<font color='#BB00BB'>sprintf</font><font face='Lucida Console'>(</font>buf, "<font color='#CC0000'>unknown win32 error (%ld)</font>", error<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#BB00BB'>SetLastError</font><font face='Lucida Console'>(</font>lasterr<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> buf;
<b>}</b>
<font color='#0000FF'>#endif</font> <font color='#009900'>/* UNDER_CE */</font>
<font color='#009900'>/* Reset gzip file state */</font>
local <font color='#0000FF'><u>void</u></font> <b><a name='gz_reset'></a>gz_reset</b><font face='Lucida Console'>(</font>state<font face='Lucida Console'>)</font>
gz_statep state;
<b>{</b>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.have <font color='#5555FF'>=</font> <font color='#979000'>0</font>; <font color='#009900'>/* no output data available */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font><font color='#5555FF'>=</font> GZ_READ<font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* for reading ... */</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>eof <font color='#5555FF'>=</font> <font color='#979000'>0</font>; <font color='#009900'>/* not at end of file */</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>past <font color='#5555FF'>=</font> <font color='#979000'>0</font>; <font color='#009900'>/* have not read past end yet */</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>how <font color='#5555FF'>=</font> LOOK; <font color='#009900'>/* look for gzip header */</font>
<b>}</b>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>seek <font color='#5555FF'>=</font> <font color='#979000'>0</font>; <font color='#009900'>/* no seek request pending */</font>
<font color='#BB00BB'>gz_error</font><font face='Lucida Console'>(</font>state, Z_OK, NULL<font face='Lucida Console'>)</font>; <font color='#009900'>/* clear error */</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.pos <font color='#5555FF'>=</font> <font color='#979000'>0</font>; <font color='#009900'>/* no uncompressed data yet */</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>strm.avail_in <font color='#5555FF'>=</font> <font color='#979000'>0</font>; <font color='#009900'>/* no input data yet */</font>
<b>}</b>
<font color='#009900'>/* Open a gzip file either by name or file descriptor. */</font>
local gzFile <b><a name='gz_open'></a>gz_open</b><font face='Lucida Console'>(</font>path, fd, mode<font face='Lucida Console'>)</font>
<font color='#0000FF'>const</font> <font color='#0000FF'><u>void</u></font> <font color='#5555FF'>*</font>path;
<font color='#0000FF'><u>int</u></font> fd;
<font color='#0000FF'>const</font> <font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font>mode;
<b>{</b>
gz_statep state;
<font color='#0000FF'><u>size_t</u></font> len;
<font color='#0000FF'><u>int</u></font> oflag;
<font color='#0000FF'>#ifdef</font> O_CLOEXEC
<font color='#0000FF'><u>int</u></font> cloexec <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<font color='#0000FF'>#endif</font>
<font color='#0000FF'>#ifdef</font> O_EXCL
<font color='#0000FF'><u>int</u></font> exclusive <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<font color='#0000FF'>#endif</font>
<font color='#009900'>/* check input */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>path <font color='#5555FF'>=</font><font color='#5555FF'>=</font> NULL<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> NULL;
<font color='#009900'>/* allocate gzFile structure to return */</font>
state <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>gz_statep<font face='Lucida Console'>)</font><font color='#BB00BB'>malloc</font><font face='Lucida Console'>(</font><font color='#0000FF'>sizeof</font><font face='Lucida Console'>(</font>gz_state<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state <font color='#5555FF'>=</font><font color='#5555FF'>=</font> NULL<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> NULL;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>size <font color='#5555FF'>=</font> <font color='#979000'>0</font>; <font color='#009900'>/* no buffers allocated yet */</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>want <font color='#5555FF'>=</font> GZBUFSIZE; <font color='#009900'>/* requested buffer size */</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>msg <font color='#5555FF'>=</font> NULL; <font color='#009900'>/* no error message yet */</font>
<font color='#009900'>/* interpret mode */</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> GZ_NONE;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>level <font color='#5555FF'>=</font> Z_DEFAULT_COMPRESSION;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>strategy <font color='#5555FF'>=</font> Z_DEFAULT_STRATEGY;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>direct <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<font color='#0000FF'>while</font> <font face='Lucida Console'>(</font><font color='#5555FF'>*</font>mode<font face='Lucida Console'>)</font> <b>{</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#5555FF'>*</font>mode <font color='#5555FF'>></font><font color='#5555FF'>=</font> '<font color='#FF0000'>0</font>' <font color='#5555FF'>&</font><font color='#5555FF'>&</font> <font color='#5555FF'>*</font>mode <font color='#5555FF'><</font><font color='#5555FF'>=</font> '<font color='#FF0000'>9</font>'<font face='Lucida Console'>)</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>level <font color='#5555FF'>=</font> <font color='#5555FF'>*</font>mode <font color='#5555FF'>-</font> '<font color='#FF0000'>0</font>';
<font color='#0000FF'>else</font>
<font color='#0000FF'>switch</font> <font face='Lucida Console'>(</font><font color='#5555FF'>*</font>mode<font face='Lucida Console'>)</font> <b>{</b>
<font color='#0000FF'>case</font> '<font color='#FF0000'>r</font>':
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> GZ_READ;
<font color='#0000FF'>break</font>;
<font color='#0000FF'>#ifndef</font> NO_GZCOMPRESS
<font color='#0000FF'>case</font> '<font color='#FF0000'>w</font>':
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> GZ_WRITE;
<font color='#0000FF'>break</font>;
<font color='#0000FF'>case</font> '<font color='#FF0000'>a</font>':
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> GZ_APPEND;
<font color='#0000FF'>break</font>;
<font color='#0000FF'>#endif</font>
<font color='#0000FF'>case</font> '<font color='#FF0000'>+</font>': <font color='#009900'>/* can't read and write at the same time */</font>
<font color='#BB00BB'>free</font><font face='Lucida Console'>(</font>state<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> NULL;
<font color='#0000FF'>case</font> '<font color='#FF0000'>b</font>': <font color='#009900'>/* ignore -- will request binary anyway */</font>
<font color='#0000FF'>break</font>;
<font color='#0000FF'>#ifdef</font> O_CLOEXEC
<font color='#0000FF'>case</font> '<font color='#FF0000'>e</font>':
cloexec <font color='#5555FF'>=</font> <font color='#979000'>1</font>;
<font color='#0000FF'>break</font>;
<font color='#0000FF'>#endif</font>
<font color='#0000FF'>#ifdef</font> O_EXCL
<font color='#0000FF'>case</font> '<font color='#FF0000'>x</font>':
exclusive <font color='#5555FF'>=</font> <font color='#979000'>1</font>;
<font color='#0000FF'>break</font>;
<font color='#0000FF'>#endif</font>
<font color='#0000FF'>case</font> '<font color='#FF0000'>f</font>':
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>strategy <font color='#5555FF'>=</font> Z_FILTERED;
<font color='#0000FF'>break</font>;
<font color='#0000FF'>case</font> '<font color='#FF0000'>h</font>':
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>strategy <font color='#5555FF'>=</font> Z_HUFFMAN_ONLY;
<font color='#0000FF'>break</font>;
<font color='#0000FF'>case</font> '<font color='#FF0000'>R</font>':
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>strategy <font color='#5555FF'>=</font> Z_RLE;
<font color='#0000FF'>break</font>;
<font color='#0000FF'>case</font> '<font color='#FF0000'>F</font>':
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>strategy <font color='#5555FF'>=</font> Z_FIXED;
<font color='#0000FF'>break</font>;
<font color='#0000FF'>case</font> '<font color='#FF0000'>T</font>':
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>direct <font color='#5555FF'>=</font> <font color='#979000'>1</font>;
<font color='#0000FF'>break</font>;
<font color='#0000FF'>default</font>: <font color='#009900'>/* could consider as an error, but just ignore */</font>
;
<b>}</b>
mode<font color='#5555FF'>+</font><font color='#5555FF'>+</font>;
<b>}</b>
<font color='#009900'>/* must provide an "r", "w", or "a" */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font><font color='#5555FF'>=</font> GZ_NONE<font face='Lucida Console'>)</font> <b>{</b>
<font color='#BB00BB'>free</font><font face='Lucida Console'>(</font>state<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> NULL;
<b>}</b>
<font color='#009900'>/* can't force transparent read */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font><font color='#5555FF'>=</font> GZ_READ<font face='Lucida Console'>)</font> <b>{</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>direct<font face='Lucida Console'>)</font> <b>{</b>
<font color='#BB00BB'>free</font><font face='Lucida Console'>(</font>state<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> NULL;
<b>}</b>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>direct <font color='#5555FF'>=</font> <font color='#979000'>1</font>; <font color='#009900'>/* for empty file */</font>
<b>}</b>
<font color='#009900'>/* save the path name for error messages */</font>
<font color='#0000FF'>#ifdef</font> _WIN32
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>fd <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>2</font><font face='Lucida Console'>)</font> <b>{</b>
len <font color='#5555FF'>=</font> <font color='#BB00BB'>wcstombs</font><font face='Lucida Console'>(</font>NULL, path, <font color='#979000'>0</font><font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>len <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>size_t</u></font><font face='Lucida Console'>)</font><font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>
len <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<b>}</b>
<font color='#0000FF'>else</font>
<font color='#0000FF'>#endif</font>
len <font color='#5555FF'>=</font> <font color='#BB00BB'>strlen</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font><font color='#0000FF'>const</font> <font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font>path<font face='Lucida Console'>)</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>path <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font><font color='#BB00BB'>malloc</font><font face='Lucida Console'>(</font>len <font color='#5555FF'>+</font> <font color='#979000'>1</font><font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>path <font color='#5555FF'>=</font><font color='#5555FF'>=</font> NULL<font face='Lucida Console'>)</font> <b>{</b>
<font color='#BB00BB'>free</font><font face='Lucida Console'>(</font>state<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> NULL;
<b>}</b>
<font color='#0000FF'>#ifdef</font> _WIN32
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>fd <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>2</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>len<font face='Lucida Console'>)</font>
<font color='#BB00BB'>wcstombs</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>path, path, len <font color='#5555FF'>+</font> <font color='#979000'>1</font><font face='Lucida Console'>)</font>;
<font color='#0000FF'>else</font>
<font color='#5555FF'>*</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>path<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<font color='#0000FF'>else</font>
<font color='#0000FF'>#endif</font>
<font color='#0000FF'>#if</font> <font color='#5555FF'>!</font>defined<font face='Lucida Console'>(</font>NO_snprintf<font face='Lucida Console'>)</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> <font color='#5555FF'>!</font>defined<font face='Lucida Console'>(</font>NO_vsnprintf<font face='Lucida Console'>)</font>
<font color='#BB00BB'>snprintf</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>path, len <font color='#5555FF'>+</font> <font color='#979000'>1</font>, "<font color='#CC0000'>%s</font>", <font face='Lucida Console'>(</font><font color='#0000FF'>const</font> <font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font>path<font face='Lucida Console'>)</font>;
<font color='#0000FF'>#else</font>
<font color='#BB00BB'>strcpy</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>path, path<font face='Lucida Console'>)</font>;
<font color='#0000FF'>#endif</font>
<font color='#009900'>/* compute the flags for open() */</font>
oflag <font color='#5555FF'>=</font>
<font color='#0000FF'>#ifdef</font> O_LARGEFILE
O_LARGEFILE <font color='#5555FF'>|</font>
<font color='#0000FF'>#endif</font>
<font color='#0000FF'>#ifdef</font> O_BINARY
O_BINARY <font color='#5555FF'>|</font>
<font color='#0000FF'>#endif</font>
<font color='#0000FF'>#ifdef</font> <font color='#BB00BB'>O_CLOEXEC</font>
<font face='Lucida Console'>(</font>cloexec ? O_CLOEXEC : <font color='#979000'>0</font><font face='Lucida Console'>)</font> <font color='#5555FF'>|</font>
<font color='#0000FF'>#endif</font>
<font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font><font color='#5555FF'>=</font> GZ_READ ?
O_RDONLY :
<font face='Lucida Console'>(</font>O_WRONLY <font color='#5555FF'>|</font> O_CREAT <font color='#5555FF'>|</font>
<font color='#0000FF'>#ifdef</font> <font color='#BB00BB'>O_EXCL</font>
<font face='Lucida Console'>(</font>exclusive ? O_EXCL : <font color='#979000'>0</font><font face='Lucida Console'>)</font> <font color='#5555FF'>|</font>
<font color='#0000FF'>#endif</font>
<font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font><font color='#5555FF'>=</font> GZ_WRITE ?
O_TRUNC :
O_APPEND<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
<font color='#009900'>/* open the file with the appropriate flags (or just use fd) */</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>fd <font color='#5555FF'>=</font> fd <font color='#5555FF'>></font> <font color='#5555FF'>-</font><font color='#979000'>1</font> ? fd : <font face='Lucida Console'>(</font>
<font color='#0000FF'>#ifdef</font> _WIN32
fd <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>2</font> ? <font color='#BB00BB'>_wopen</font><font face='Lucida Console'>(</font>path, oflag, <font color='#979000'>0666</font><font face='Lucida Console'>)</font> :
<font color='#0000FF'>#endif</font>
<font color='#BB00BB'>open</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font><font color='#0000FF'>const</font> <font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font>path, oflag, <font color='#979000'>0666</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>fd <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font> <b>{</b>
<font color='#BB00BB'>free</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>path<font face='Lucida Console'>)</font>;
<font color='#BB00BB'>free</font><font face='Lucida Console'>(</font>state<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> NULL;
<b>}</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font><font color='#5555FF'>=</font> GZ_APPEND<font face='Lucida Console'>)</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> GZ_WRITE; <font color='#009900'>/* simplify later checks */</font>
<font color='#009900'>/* save the current position for rewinding (only if reading) */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font><font color='#5555FF'>=</font> GZ_READ<font face='Lucida Console'>)</font> <b>{</b>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>start <font color='#5555FF'>=</font> <font color='#BB00BB'>LSEEK</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>fd, <font color='#979000'>0</font>, SEEK_CUR<font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>start <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>start <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<b>}</b>
<font color='#009900'>/* initialize stream */</font>
<font color='#BB00BB'>gz_reset</font><font face='Lucida Console'>(</font>state<font face='Lucida Console'>)</font>;
<font color='#009900'>/* return stream */</font>
<font color='#0000FF'>return</font> <font face='Lucida Console'>(</font>gzFile<font face='Lucida Console'>)</font>state;
<b>}</b>
<font color='#009900'>/* -- see zlib.h -- */</font>
gzFile ZEXPORT <b><a name='gzopen'></a>gzopen</b><font face='Lucida Console'>(</font>path, mode<font face='Lucida Console'>)</font>
<font color='#0000FF'>const</font> <font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font>path;
<font color='#0000FF'>const</font> <font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font>mode;
<b>{</b>
<font color='#0000FF'>return</font> <font color='#BB00BB'>gz_open</font><font face='Lucida Console'>(</font>path, <font color='#5555FF'>-</font><font color='#979000'>1</font>, mode<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#009900'>/* -- see zlib.h -- */</font>
gzFile ZEXPORT <b><a name='gzopen64'></a>gzopen64</b><font face='Lucida Console'>(</font>path, mode<font face='Lucida Console'>)</font>
<font color='#0000FF'>const</font> <font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font>path;
<font color='#0000FF'>const</font> <font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font>mode;
<b>{</b>
<font color='#0000FF'>return</font> <font color='#BB00BB'>gz_open</font><font face='Lucida Console'>(</font>path, <font color='#5555FF'>-</font><font color='#979000'>1</font>, mode<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#009900'>/* -- see zlib.h -- */</font>
gzFile ZEXPORT <b><a name='gzdopen'></a>gzdopen</b><font face='Lucida Console'>(</font>fd, mode<font face='Lucida Console'>)</font>
<font color='#0000FF'><u>int</u></font> fd;
<font color='#0000FF'>const</font> <font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font>mode;
<b>{</b>
<font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font>path; <font color='#009900'>/* identifier for error messages */</font>
gzFile gz;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>fd <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font> <font color='#5555FF'>|</font><font color='#5555FF'>|</font> <font face='Lucida Console'>(</font>path <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font><font color='#BB00BB'>malloc</font><font face='Lucida Console'>(</font><font color='#979000'>7</font> <font color='#5555FF'>+</font> <font color='#979000'>3</font> <font color='#5555FF'>*</font> <font color='#0000FF'>sizeof</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> NULL<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> NULL;
<font color='#0000FF'>#if</font> <font color='#5555FF'>!</font>defined<font face='Lucida Console'>(</font>NO_snprintf<font face='Lucida Console'>)</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> <font color='#5555FF'>!</font>defined<font face='Lucida Console'>(</font>NO_vsnprintf<font face='Lucida Console'>)</font>
<font color='#BB00BB'>snprintf</font><font face='Lucida Console'>(</font>path, <font color='#979000'>7</font> <font color='#5555FF'>+</font> <font color='#979000'>3</font> <font color='#5555FF'>*</font> <font color='#0000FF'>sizeof</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font>, "<font color='#CC0000'><fd:%d></font>", fd<font face='Lucida Console'>)</font>; <font color='#009900'>/* for debugging */</font>
<font color='#0000FF'>#else</font>
<font color='#BB00BB'>sprintf</font><font face='Lucida Console'>(</font>path, "<font color='#CC0000'><fd:%d></font>", fd<font face='Lucida Console'>)</font>; <font color='#009900'>/* for debugging */</font>
<font color='#0000FF'>#endif</font>
gz <font color='#5555FF'>=</font> <font color='#BB00BB'>gz_open</font><font face='Lucida Console'>(</font>path, fd, mode<font face='Lucida Console'>)</font>;
<font color='#BB00BB'>free</font><font face='Lucida Console'>(</font>path<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> gz;
<b>}</b>
<font color='#009900'>/* -- see zlib.h -- */</font>
<font color='#0000FF'>#ifdef</font> _WIN32
gzFile ZEXPORT <b><a name='gzopen_w'></a>gzopen_w</b><font face='Lucida Console'>(</font>path, mode<font face='Lucida Console'>)</font>
<font color='#0000FF'>const</font> <font color='#0000FF'><u>wchar_t</u></font> <font color='#5555FF'>*</font>path;
<font color='#0000FF'>const</font> <font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font>mode;
<b>{</b>
<font color='#0000FF'>return</font> <font color='#BB00BB'>gz_open</font><font face='Lucida Console'>(</font>path, <font color='#5555FF'>-</font><font color='#979000'>2</font>, mode<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>#endif</font>
<font color='#009900'>/* -- see zlib.h -- */</font>
<font color='#0000FF'><u>int</u></font> ZEXPORT <b><a name='gzbuffer'></a>gzbuffer</b><font face='Lucida Console'>(</font>file, size<font face='Lucida Console'>)</font>
gzFile file;
<font color='#0000FF'><u>unsigned</u></font> size;
<b>{</b>
gz_statep state;
<font color='#009900'>/* get internal structure and check integrity */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>file <font color='#5555FF'>=</font><font color='#5555FF'>=</font> NULL<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
state <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>gz_statep<font face='Lucida Console'>)</font>file;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>!</font><font color='#5555FF'>=</font> GZ_READ <font color='#5555FF'>&</font><font color='#5555FF'>&</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>!</font><font color='#5555FF'>=</font> GZ_WRITE<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<font color='#009900'>/* make sure we haven't already allocated memory */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>size <font color='#5555FF'>!</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<font color='#009900'>/* check and set requested size */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>size <font color='#5555FF'><</font> <font color='#979000'>2</font><font face='Lucida Console'>)</font>
size <font color='#5555FF'>=</font> <font color='#979000'>2</font>; <font color='#009900'>/* need two bytes to check magic header */</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>want <font color='#5555FF'>=</font> size;
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<b>}</b>
<font color='#009900'>/* -- see zlib.h -- */</font>
<font color='#0000FF'><u>int</u></font> ZEXPORT <b><a name='gzrewind'></a>gzrewind</b><font face='Lucida Console'>(</font>file<font face='Lucida Console'>)</font>
gzFile file;
<b>{</b>
gz_statep state;
<font color='#009900'>/* get internal structure */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>file <font color='#5555FF'>=</font><font color='#5555FF'>=</font> NULL<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
state <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>gz_statep<font face='Lucida Console'>)</font>file;
<font color='#009900'>/* check that we're reading and that there's no error */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>!</font><font color='#5555FF'>=</font> GZ_READ <font color='#5555FF'>|</font><font color='#5555FF'>|</font>
<font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>err <font color='#5555FF'>!</font><font color='#5555FF'>=</font> Z_OK <font color='#5555FF'>&</font><font color='#5555FF'>&</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>err <font color='#5555FF'>!</font><font color='#5555FF'>=</font> Z_BUF_ERROR<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<font color='#009900'>/* back up and start over */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#BB00BB'>LSEEK</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>fd, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>start, SEEK_SET<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<font color='#BB00BB'>gz_reset</font><font face='Lucida Console'>(</font>state<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<b>}</b>
<font color='#009900'>/* -- see zlib.h -- */</font>
z_off64_t ZEXPORT <b><a name='gzseek64'></a>gzseek64</b><font face='Lucida Console'>(</font>file, offset, whence<font face='Lucida Console'>)</font>
gzFile file;
z_off64_t offset;
<font color='#0000FF'><u>int</u></font> whence;
<b>{</b>
<font color='#0000FF'><u>unsigned</u></font> n;
z_off64_t ret;
gz_statep state;
<font color='#009900'>/* get internal structure and check integrity */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>file <font color='#5555FF'>=</font><font color='#5555FF'>=</font> NULL<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
state <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>gz_statep<font face='Lucida Console'>)</font>file;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>!</font><font color='#5555FF'>=</font> GZ_READ <font color='#5555FF'>&</font><font color='#5555FF'>&</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>!</font><font color='#5555FF'>=</font> GZ_WRITE<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<font color='#009900'>/* check that there's no error */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>err <font color='#5555FF'>!</font><font color='#5555FF'>=</font> Z_OK <font color='#5555FF'>&</font><font color='#5555FF'>&</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>err <font color='#5555FF'>!</font><font color='#5555FF'>=</font> Z_BUF_ERROR<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<font color='#009900'>/* can only seek from start or relative to current position */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>whence <font color='#5555FF'>!</font><font color='#5555FF'>=</font> SEEK_SET <font color='#5555FF'>&</font><font color='#5555FF'>&</font> whence <font color='#5555FF'>!</font><font color='#5555FF'>=</font> SEEK_CUR<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<font color='#009900'>/* normalize offset to a SEEK_CUR specification */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>whence <font color='#5555FF'>=</font><font color='#5555FF'>=</font> SEEK_SET<font face='Lucida Console'>)</font>
offset <font color='#5555FF'>-</font><font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.pos;
<font color='#0000FF'>else</font> <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>seek<font face='Lucida Console'>)</font>
offset <font color='#5555FF'>+</font><font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>skip;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>seek <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<font color='#009900'>/* if within raw area while reading, just go there */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font><font color='#5555FF'>=</font> GZ_READ <font color='#5555FF'>&</font><font color='#5555FF'>&</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>how <font color='#5555FF'>=</font><font color='#5555FF'>=</font> COPY <font color='#5555FF'>&</font><font color='#5555FF'>&</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.pos <font color='#5555FF'>+</font> offset <font color='#5555FF'>></font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font> <b>{</b>
ret <font color='#5555FF'>=</font> <font color='#BB00BB'>LSEEK</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>fd, offset <font color='#5555FF'>-</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.have, SEEK_CUR<font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>ret <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.have <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>eof <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>past <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>seek <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<font color='#BB00BB'>gz_error</font><font face='Lucida Console'>(</font>state, Z_OK, NULL<font face='Lucida Console'>)</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>strm.avail_in <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.pos <font color='#5555FF'>+</font><font color='#5555FF'>=</font> offset;
<font color='#0000FF'>return</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.pos;
<b>}</b>
<font color='#009900'>/* calculate skip amount, rewinding if needed for back seek when reading */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>offset <font color='#5555FF'><</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font> <b>{</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>!</font><font color='#5555FF'>=</font> GZ_READ<font face='Lucida Console'>)</font> <font color='#009900'>/* writing -- can't go backwards */</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
offset <font color='#5555FF'>+</font><font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.pos;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>offset <font color='#5555FF'><</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font> <font color='#009900'>/* before start of file! */</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#BB00BB'>gzrewind</font><font face='Lucida Console'>(</font>file<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font> <font color='#009900'>/* rewind, then skip to offset */</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<b>}</b>
<font color='#009900'>/* if reading, skip what's in output buffer (one less gzgetc() check) */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font><font color='#5555FF'>=</font> GZ_READ<font face='Lucida Console'>)</font> <b>{</b>
n <font color='#5555FF'>=</font> <font color='#BB00BB'>GT_OFF</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.have<font face='Lucida Console'>)</font> <font color='#5555FF'>|</font><font color='#5555FF'>|</font> <font face='Lucida Console'>(</font>z_off64_t<font face='Lucida Console'>)</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.have <font color='#5555FF'>></font> offset ?
<font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font><font face='Lucida Console'>)</font>offset : state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.have;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.have <font color='#5555FF'>-</font><font color='#5555FF'>=</font> n;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.next <font color='#5555FF'>+</font><font color='#5555FF'>=</font> n;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.pos <font color='#5555FF'>+</font><font color='#5555FF'>=</font> n;
offset <font color='#5555FF'>-</font><font color='#5555FF'>=</font> n;
<b>}</b>
<font color='#009900'>/* request skip (if not zero) */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>offset<font face='Lucida Console'>)</font> <b>{</b>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>seek <font color='#5555FF'>=</font> <font color='#979000'>1</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>skip <font color='#5555FF'>=</font> offset;
<b>}</b>
<font color='#0000FF'>return</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.pos <font color='#5555FF'>+</font> offset;
<b>}</b>
<font color='#009900'>/* -- see zlib.h -- */</font>
z_off_t ZEXPORT <b><a name='gzseek'></a>gzseek</b><font face='Lucida Console'>(</font>file, offset, whence<font face='Lucida Console'>)</font>
gzFile file;
z_off_t offset;
<font color='#0000FF'><u>int</u></font> whence;
<b>{</b>
z_off64_t ret;
ret <font color='#5555FF'>=</font> <font color='#BB00BB'>gzseek64</font><font face='Lucida Console'>(</font>file, <font face='Lucida Console'>(</font>z_off64_t<font face='Lucida Console'>)</font>offset, whence<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> ret <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>z_off_t<font face='Lucida Console'>)</font>ret ? <font face='Lucida Console'>(</font>z_off_t<font face='Lucida Console'>)</font>ret : <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<b>}</b>
<font color='#009900'>/* -- see zlib.h -- */</font>
z_off64_t ZEXPORT <b><a name='gztell64'></a>gztell64</b><font face='Lucida Console'>(</font>file<font face='Lucida Console'>)</font>
gzFile file;
<b>{</b>
gz_statep state;
<font color='#009900'>/* get internal structure and check integrity */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>file <font color='#5555FF'>=</font><font color='#5555FF'>=</font> NULL<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
state <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>gz_statep<font face='Lucida Console'>)</font>file;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>!</font><font color='#5555FF'>=</font> GZ_READ <font color='#5555FF'>&</font><font color='#5555FF'>&</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>!</font><font color='#5555FF'>=</font> GZ_WRITE<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<font color='#009900'>/* return position */</font>
<font color='#0000FF'>return</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.pos <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>seek ? state<font color='#5555FF'>-</font><font color='#5555FF'>></font>skip : <font color='#979000'>0</font><font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#009900'>/* -- see zlib.h -- */</font>
z_off_t ZEXPORT <b><a name='gztell'></a>gztell</b><font face='Lucida Console'>(</font>file<font face='Lucida Console'>)</font>
gzFile file;
<b>{</b>
z_off64_t ret;
ret <font color='#5555FF'>=</font> <font color='#BB00BB'>gztell64</font><font face='Lucida Console'>(</font>file<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> ret <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>z_off_t<font face='Lucida Console'>)</font>ret ? <font face='Lucida Console'>(</font>z_off_t<font face='Lucida Console'>)</font>ret : <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<b>}</b>
<font color='#009900'>/* -- see zlib.h -- */</font>
z_off64_t ZEXPORT <b><a name='gzoffset64'></a>gzoffset64</b><font face='Lucida Console'>(</font>file<font face='Lucida Console'>)</font>
gzFile file;
<b>{</b>
z_off64_t offset;
gz_statep state;
<font color='#009900'>/* get internal structure and check integrity */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>file <font color='#5555FF'>=</font><font color='#5555FF'>=</font> NULL<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
state <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>gz_statep<font face='Lucida Console'>)</font>file;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>!</font><font color='#5555FF'>=</font> GZ_READ <font color='#5555FF'>&</font><font color='#5555FF'>&</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>!</font><font color='#5555FF'>=</font> GZ_WRITE<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<font color='#009900'>/* compute and return effective offset in file */</font>
offset <font color='#5555FF'>=</font> <font color='#BB00BB'>LSEEK</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>fd, <font color='#979000'>0</font>, SEEK_CUR<font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>offset <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font><font color='#5555FF'>=</font> GZ_READ<font face='Lucida Console'>)</font> <font color='#009900'>/* reading */</font>
offset <font color='#5555FF'>-</font><font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>strm.avail_in; <font color='#009900'>/* don't count buffered input */</font>
<font color='#0000FF'>return</font> offset;
<b>}</b>
<font color='#009900'>/* -- see zlib.h -- */</font>
z_off_t ZEXPORT <b><a name='gzoffset'></a>gzoffset</b><font face='Lucida Console'>(</font>file<font face='Lucida Console'>)</font>
gzFile file;
<b>{</b>
z_off64_t ret;
ret <font color='#5555FF'>=</font> <font color='#BB00BB'>gzoffset64</font><font face='Lucida Console'>(</font>file<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> ret <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>z_off_t<font face='Lucida Console'>)</font>ret ? <font face='Lucida Console'>(</font>z_off_t<font face='Lucida Console'>)</font>ret : <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<b>}</b>
<font color='#009900'>/* -- see zlib.h -- */</font>
<font color='#0000FF'><u>int</u></font> ZEXPORT <b><a name='gzeof'></a>gzeof</b><font face='Lucida Console'>(</font>file<font face='Lucida Console'>)</font>
gzFile file;
<b>{</b>
gz_statep state;
<font color='#009900'>/* get internal structure and check integrity */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>file <font color='#5555FF'>=</font><font color='#5555FF'>=</font> NULL<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
state <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>gz_statep<font face='Lucida Console'>)</font>file;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>!</font><font color='#5555FF'>=</font> GZ_READ <font color='#5555FF'>&</font><font color='#5555FF'>&</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>!</font><font color='#5555FF'>=</font> GZ_WRITE<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<font color='#009900'>/* return end-of-file state */</font>
<font color='#0000FF'>return</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font><font color='#5555FF'>=</font> GZ_READ ? state<font color='#5555FF'>-</font><font color='#5555FF'>></font>past : <font color='#979000'>0</font>;
<b>}</b>
<font color='#009900'>/* -- see zlib.h -- */</font>
<font color='#0000FF'>const</font> <font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font> ZEXPORT <b><a name='gzerror'></a>gzerror</b><font face='Lucida Console'>(</font>file, errnum<font face='Lucida Console'>)</font>
gzFile file;
<font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font>errnum;
<b>{</b>
gz_statep state;
<font color='#009900'>/* get internal structure and check integrity */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>file <font color='#5555FF'>=</font><font color='#5555FF'>=</font> NULL<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> NULL;
state <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>gz_statep<font face='Lucida Console'>)</font>file;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>!</font><font color='#5555FF'>=</font> GZ_READ <font color='#5555FF'>&</font><font color='#5555FF'>&</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>!</font><font color='#5555FF'>=</font> GZ_WRITE<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> NULL;
<font color='#009900'>/* return error information */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>errnum <font color='#5555FF'>!</font><font color='#5555FF'>=</font> NULL<font face='Lucida Console'>)</font>
<font color='#5555FF'>*</font>errnum <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>err;
<font color='#0000FF'>return</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>err <font color='#5555FF'>=</font><font color='#5555FF'>=</font> Z_MEM_ERROR ? "<font color='#CC0000'>out of memory</font>" :
<font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>msg <font color='#5555FF'>=</font><font color='#5555FF'>=</font> NULL ? "<font color='#CC0000'></font>" : state<font color='#5555FF'>-</font><font color='#5555FF'>></font>msg<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#009900'>/* -- see zlib.h -- */</font>
<font color='#0000FF'><u>void</u></font> ZEXPORT <b><a name='gzclearerr'></a>gzclearerr</b><font face='Lucida Console'>(</font>file<font face='Lucida Console'>)</font>
gzFile file;
<b>{</b>
gz_statep state;
<font color='#009900'>/* get internal structure and check integrity */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>file <font color='#5555FF'>=</font><font color='#5555FF'>=</font> NULL<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font>;
state <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>gz_statep<font face='Lucida Console'>)</font>file;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>!</font><font color='#5555FF'>=</font> GZ_READ <font color='#5555FF'>&</font><font color='#5555FF'>&</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>!</font><font color='#5555FF'>=</font> GZ_WRITE<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font>;
<font color='#009900'>/* clear error and end-of-file */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font><font color='#5555FF'>=</font> GZ_READ<font face='Lucida Console'>)</font> <b>{</b>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>eof <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>past <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<b>}</b>
<font color='#BB00BB'>gz_error</font><font face='Lucida Console'>(</font>state, Z_OK, NULL<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#009900'>/* Create an error message in allocated memory and set state->err and
state->msg accordingly. Free any previous error message already there. Do
not try to free or allocate space if the error is Z_MEM_ERROR (out of
memory). Simply save the error message as a static string. If there is an
allocation failure constructing the error message, then convert the error to
out of memory. */</font>
<font color='#0000FF'><u>void</u></font> ZLIB_INTERNAL <b><a name='gz_error'></a>gz_error</b><font face='Lucida Console'>(</font>state, err, msg<font face='Lucida Console'>)</font>
gz_statep state;
<font color='#0000FF'><u>int</u></font> err;
<font color='#0000FF'>const</font> <font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font>msg;
<b>{</b>
<font color='#009900'>/* free previously allocated message and clear */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>msg <font color='#5555FF'>!</font><font color='#5555FF'>=</font> NULL<font face='Lucida Console'>)</font> <b>{</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>err <font color='#5555FF'>!</font><font color='#5555FF'>=</font> Z_MEM_ERROR<font face='Lucida Console'>)</font>
<font color='#BB00BB'>free</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>msg<font face='Lucida Console'>)</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>msg <font color='#5555FF'>=</font> NULL;
<b>}</b>
<font color='#009900'>/* if fatal, set state->x.have to 0 so that the gzgetc() macro fails */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>err <font color='#5555FF'>!</font><font color='#5555FF'>=</font> Z_OK <font color='#5555FF'>&</font><font color='#5555FF'>&</font> err <font color='#5555FF'>!</font><font color='#5555FF'>=</font> Z_BUF_ERROR<font face='Lucida Console'>)</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.have <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<font color='#009900'>/* set error code, and if no message, then done */</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>err <font color='#5555FF'>=</font> err;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>msg <font color='#5555FF'>=</font><font color='#5555FF'>=</font> NULL<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font>;
<font color='#009900'>/* for an out of memory error, return literal string when requested */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>err <font color='#5555FF'>=</font><font color='#5555FF'>=</font> Z_MEM_ERROR<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font>;
<font color='#009900'>/* construct error message with path */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>msg <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font><font color='#BB00BB'>malloc</font><font face='Lucida Console'>(</font><font color='#BB00BB'>strlen</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>path<font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> <font color='#BB00BB'>strlen</font><font face='Lucida Console'>(</font>msg<font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> <font color='#979000'>3</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font>
NULL<font face='Lucida Console'>)</font> <b>{</b>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>err <font color='#5555FF'>=</font> Z_MEM_ERROR;
<font color='#0000FF'>return</font>;
<b>}</b>
<font color='#0000FF'>#if</font> <font color='#5555FF'>!</font>defined<font face='Lucida Console'>(</font>NO_snprintf<font face='Lucida Console'>)</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> <font color='#5555FF'>!</font>defined<font face='Lucida Console'>(</font>NO_vsnprintf<font face='Lucida Console'>)</font>
<font color='#BB00BB'>snprintf</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>msg, <font color='#BB00BB'>strlen</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>path<font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> <font color='#BB00BB'>strlen</font><font face='Lucida Console'>(</font>msg<font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> <font color='#979000'>3</font>,
"<font color='#CC0000'>%s%s%s</font>", state<font color='#5555FF'>-</font><font color='#5555FF'>></font>path, "<font color='#CC0000'>: </font>", msg<font face='Lucida Console'>)</font>;
<font color='#0000FF'>#else</font>
<font color='#BB00BB'>strcpy</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>msg, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>path<font face='Lucida Console'>)</font>;
<font color='#BB00BB'>strcat</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>msg, "<font color='#CC0000'>: </font>"<font face='Lucida Console'>)</font>;
<font color='#BB00BB'>strcat</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>msg, msg<font face='Lucida Console'>)</font>;
<font color='#0000FF'>#endif</font>
<font color='#0000FF'>return</font>;
<b>}</b>
<font color='#0000FF'>#ifndef</font> INT_MAX
<font color='#009900'>/* portably return maximum value for an int (when limits.h presumed not
available) -- we need to do this to cover cases where 2's complement not
used, since C standard permits 1's complement and sign-bit representations,
otherwise we could just use ((unsigned)-1) >> 1 */</font>
<font color='#0000FF'><u>unsigned</u></font> ZLIB_INTERNAL <b><a name='gz_intmax'></a>gz_intmax</b><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>
<b>{</b>
<font color='#0000FF'><u>unsigned</u></font> p, q;
p <font color='#5555FF'>=</font> <font color='#979000'>1</font>;
<font color='#0000FF'>do</font> <b>{</b>
q <font color='#5555FF'>=</font> p;
p <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> <font color='#979000'>1</font>;
p<font color='#5555FF'>+</font><font color='#5555FF'>+</font>;
<b>}</b> <font color='#0000FF'>while</font> <font face='Lucida Console'>(</font>p <font color='#5555FF'>></font> q<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> q <font color='#5555FF'>></font><font color='#5555FF'>></font> <font color='#979000'>1</font>;
<b>}</b>
<font color='#0000FF'>#endif</font>
</pre></body></html> |