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<html><head><title>dlib C++ Library - gzlib.c</title></head><body bgcolor='white'><pre> |
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<font color='#009900'>/* gzlib.c -- zlib functions common to reading and writing gzip files |
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* Copyright (C) 2004, 2010, 2011, 2012, 2013 Mark Adler |
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* For conditions of distribution and use, see copyright notice in zlib.h |
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*/</font> |
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<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='gzguts.h.html'>gzguts.h</a>" |
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<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> |
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# define LSEEK _lseeki64 |
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<font color='#0000FF'>#else</font> |
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<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> |
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# define LSEEK lseek64 |
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<font color='#0000FF'>#else</font> |
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# define LSEEK lseek |
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<font color='#0000FF'>#endif</font> |
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<font color='#0000FF'>#endif</font> |
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<font color='#009900'>/* Local functions */</font> |
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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>; |
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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>; |
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<font color='#0000FF'>#if</font> defined UNDER_CE |
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<font color='#009900'>/* Map the Windows error number in ERROR to a locale-dependent error message |
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string and return a pointer to it. Typically, the values for ERROR come |
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from GetLastError. |
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The string pointed to shall not be modified by the application, but may be |
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overwritten by a subsequent call to gz_strwinerror |
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The gz_strwinerror function does not change the current setting of |
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GetLastError. */</font> |
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<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> |
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DWORD error; |
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<b>{</b> |
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<font color='#0000FF'>static</font> <font color='#0000FF'><u>char</u></font> buf[<font color='#979000'>1024</font>]; |
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<font color='#0000FF'><u>wchar_t</u></font> <font color='#5555FF'>*</font>msgbuf; |
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DWORD lasterr <font color='#5555FF'>=</font> <font color='#BB00BB'>GetLastError</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; |
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DWORD chars <font color='#5555FF'>=</font> <font color='#BB00BB'>FormatMessage</font><font face='Lucida Console'>(</font>FORMAT_MESSAGE_FROM_SYSTEM |
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<font color='#5555FF'>|</font> FORMAT_MESSAGE_ALLOCATE_BUFFER, |
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NULL, |
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error, |
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<font color='#979000'>0</font>, <font color='#009900'>/* Default language */</font> |
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<font face='Lucida Console'>(</font>LPVOID<font face='Lucida Console'>)</font><font color='#5555FF'>&</font>msgbuf, |
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<font color='#979000'>0</font>, |
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NULL<font face='Lucida Console'>)</font>; |
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<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> |
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<font color='#009900'>/* If there is an \r\n appended, zap it. */</font> |
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<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>chars <font color='#5555FF'>></font><font color='#5555FF'>=</font> <font color='#979000'>2</font> |
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<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> |
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chars <font color='#5555FF'>-</font><font color='#5555FF'>=</font> <font color='#979000'>2</font>; |
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msgbuf[chars] <font color='#5555FF'>=</font> <font color='#979000'>0</font>; |
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<b>}</b> |
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<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> |
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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>; |
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msgbuf[chars] <font color='#5555FF'>=</font> <font color='#979000'>0</font>; |
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<b>}</b> |
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<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>; |
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<font color='#BB00BB'>LocalFree</font><font face='Lucida Console'>(</font>msgbuf<font face='Lucida Console'>)</font>; |
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<b>}</b> |
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<font color='#0000FF'>else</font> <b>{</b> |
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<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>; |
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<b>}</b> |
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<font color='#BB00BB'>SetLastError</font><font face='Lucida Console'>(</font>lasterr<font face='Lucida Console'>)</font>; |
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<font color='#0000FF'>return</font> buf; |
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<b>}</b> |
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<font color='#0000FF'>#endif</font> <font color='#009900'>/* UNDER_CE */</font> |
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<font color='#009900'>/* Reset gzip file state */</font> |
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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> |
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gz_statep state; |
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<b>{</b> |
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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> |
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<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> |
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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> |
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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> |
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state<font color='#5555FF'>-</font><font color='#5555FF'>></font>how <font color='#5555FF'>=</font> LOOK; <font color='#009900'>/* look for gzip header */</font> |
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<b>}</b> |
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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> |
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<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> |
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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> |
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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> |
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<b>}</b> |
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<font color='#009900'>/* Open a gzip file either by name or file descriptor. */</font> |
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local gzFile <b><a name='gz_open'></a>gz_open</b><font face='Lucida Console'>(</font>path, fd, mode<font face='Lucida Console'>)</font> |
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<font color='#0000FF'>const</font> <font color='#0000FF'><u>void</u></font> <font color='#5555FF'>*</font>path; |
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<font color='#0000FF'><u>int</u></font> fd; |
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<font color='#0000FF'>const</font> <font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font>mode; |
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<b>{</b> |
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gz_statep state; |
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<font color='#0000FF'><u>size_t</u></font> len; |
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<font color='#0000FF'><u>int</u></font> oflag; |
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<font color='#0000FF'>#ifdef</font> O_CLOEXEC |
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<font color='#0000FF'><u>int</u></font> cloexec <font color='#5555FF'>=</font> <font color='#979000'>0</font>; |
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<font color='#0000FF'>#endif</font> |
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<font color='#0000FF'>#ifdef</font> O_EXCL |
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<font color='#0000FF'><u>int</u></font> exclusive <font color='#5555FF'>=</font> <font color='#979000'>0</font>; |
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<font color='#0000FF'>#endif</font> |
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<font color='#009900'>/* check input */</font> |
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<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> |
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<font color='#0000FF'>return</font> NULL; |
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<font color='#009900'>/* allocate gzFile structure to return */</font> |
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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>; |
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<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> |
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<font color='#0000FF'>return</font> NULL; |
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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> |
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state<font color='#5555FF'>-</font><font color='#5555FF'>></font>want <font color='#5555FF'>=</font> GZBUFSIZE; <font color='#009900'>/* requested buffer size */</font> |
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state<font color='#5555FF'>-</font><font color='#5555FF'>></font>msg <font color='#5555FF'>=</font> NULL; <font color='#009900'>/* no error message yet */</font> |
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<font color='#009900'>/* interpret mode */</font> |
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state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> GZ_NONE; |
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state<font color='#5555FF'>-</font><font color='#5555FF'>></font>level <font color='#5555FF'>=</font> Z_DEFAULT_COMPRESSION; |
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state<font color='#5555FF'>-</font><font color='#5555FF'>></font>strategy <font color='#5555FF'>=</font> Z_DEFAULT_STRATEGY; |
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state<font color='#5555FF'>-</font><font color='#5555FF'>></font>direct <font color='#5555FF'>=</font> <font color='#979000'>0</font>; |
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<font color='#0000FF'>while</font> <font face='Lucida Console'>(</font><font color='#5555FF'>*</font>mode<font face='Lucida Console'>)</font> <b>{</b> |
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<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> |
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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>'; |
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<font color='#0000FF'>else</font> |
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<font color='#0000FF'>switch</font> <font face='Lucida Console'>(</font><font color='#5555FF'>*</font>mode<font face='Lucida Console'>)</font> <b>{</b> |
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<font color='#0000FF'>case</font> '<font color='#FF0000'>r</font>': |
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state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> GZ_READ; |
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<font color='#0000FF'>break</font>; |
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<font color='#0000FF'>#ifndef</font> NO_GZCOMPRESS |
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<font color='#0000FF'>case</font> '<font color='#FF0000'>w</font>': |
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state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> GZ_WRITE; |
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<font color='#0000FF'>break</font>; |
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<font color='#0000FF'>case</font> '<font color='#FF0000'>a</font>': |
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state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>=</font> GZ_APPEND; |
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<font color='#0000FF'>break</font>; |
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<font color='#0000FF'>#endif</font> |
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<font color='#0000FF'>case</font> '<font color='#FF0000'>+</font>': <font color='#009900'>/* can't read and write at the same time */</font> |
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<font color='#BB00BB'>free</font><font face='Lucida Console'>(</font>state<font face='Lucida Console'>)</font>; |
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<font color='#0000FF'>return</font> NULL; |
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<font color='#0000FF'>case</font> '<font color='#FF0000'>b</font>': <font color='#009900'>/* ignore -- will request binary anyway */</font> |
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<font color='#0000FF'>break</font>; |
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<font color='#0000FF'>#ifdef</font> O_CLOEXEC |
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<font color='#0000FF'>case</font> '<font color='#FF0000'>e</font>': |
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cloexec <font color='#5555FF'>=</font> <font color='#979000'>1</font>; |
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<font color='#0000FF'>break</font>; |
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<font color='#0000FF'>#endif</font> |
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<font color='#0000FF'>#ifdef</font> O_EXCL |
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<font color='#0000FF'>case</font> '<font color='#FF0000'>x</font>': |
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exclusive <font color='#5555FF'>=</font> <font color='#979000'>1</font>; |
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<font color='#0000FF'>break</font>; |
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<font color='#0000FF'>#endif</font> |
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<font color='#0000FF'>case</font> '<font color='#FF0000'>f</font>': |
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state<font color='#5555FF'>-</font><font color='#5555FF'>></font>strategy <font color='#5555FF'>=</font> Z_FILTERED; |
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<font color='#0000FF'>break</font>; |
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<font color='#0000FF'>case</font> '<font color='#FF0000'>h</font>': |
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state<font color='#5555FF'>-</font><font color='#5555FF'>></font>strategy <font color='#5555FF'>=</font> Z_HUFFMAN_ONLY; |
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<font color='#0000FF'>break</font>; |
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<font color='#0000FF'>case</font> '<font color='#FF0000'>R</font>': |
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state<font color='#5555FF'>-</font><font color='#5555FF'>></font>strategy <font color='#5555FF'>=</font> Z_RLE; |
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<font color='#0000FF'>break</font>; |
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<font color='#0000FF'>case</font> '<font color='#FF0000'>F</font>': |
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state<font color='#5555FF'>-</font><font color='#5555FF'>></font>strategy <font color='#5555FF'>=</font> Z_FIXED; |
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<font color='#0000FF'>break</font>; |
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<font color='#0000FF'>case</font> '<font color='#FF0000'>T</font>': |
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state<font color='#5555FF'>-</font><font color='#5555FF'>></font>direct <font color='#5555FF'>=</font> <font color='#979000'>1</font>; |
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<font color='#0000FF'>break</font>; |
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<font color='#0000FF'>default</font>: <font color='#009900'>/* could consider as an error, but just ignore */</font> |
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; |
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<b>}</b> |
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mode<font color='#5555FF'>+</font><font color='#5555FF'>+</font>; |
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<b>}</b> |
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<font color='#009900'>/* must provide an "r", "w", or "a" */</font> |
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<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> |
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<font color='#BB00BB'>free</font><font face='Lucida Console'>(</font>state<font face='Lucida Console'>)</font>; |
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<font color='#0000FF'>return</font> NULL; |
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<b>}</b> |
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<font color='#009900'>/* can't force transparent read */</font> |
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<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> |
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<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> |
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<font color='#BB00BB'>free</font><font face='Lucida Console'>(</font>state<font face='Lucida Console'>)</font>; |
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<font color='#0000FF'>return</font> NULL; |
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<b>}</b> |
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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> |
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<b>}</b> |
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<font color='#009900'>/* save the path name for error messages */</font> |
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<font color='#0000FF'>#ifdef</font> _WIN32 |
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<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> |
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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>; |
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<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> |
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len <font color='#5555FF'>=</font> <font color='#979000'>0</font>; |
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<b>}</b> |
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<font color='#0000FF'>else</font> |
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<font color='#0000FF'>#endif</font> |
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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>; |
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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>; |
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<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> |
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<font color='#BB00BB'>free</font><font face='Lucida Console'>(</font>state<font face='Lucida Console'>)</font>; |
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<font color='#0000FF'>return</font> NULL; |
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<b>}</b> |
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<font color='#0000FF'>#ifdef</font> _WIN32 |
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<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> |
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<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>len<font face='Lucida Console'>)</font> |
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<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>; |
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<font color='#0000FF'>else</font> |
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<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>; |
|
|
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<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> |
