libkern/zlib/gzio.c

7  * as defined in and that are subject to the Apple Public Source License
8  * Version 2.0 (the 'License'). You may not use this file except in
30  * For conditions of distribution and use, see copyright notice in zlib.h
95     z_off_t  start;   /* start of compressed data in file (header skipped) */
96     z_off_t  in;      /* bytes into deflate or inflate */
113    is as in fopen ("rb" or "wb"). The file is given either by file descriptor
147     s->in = 0;
196          * Note that in this case inflate *requires* an extra "dummy" byte
197          * after the compressed stream in order to complete decompression and
221          * start anyway in write mode, so this initialization is not
323     /* Assure two bytes in the buffer so we can peek ahead -- handle case
380    Try freeing in the reverse order of allocations.
404         if (errno != ESPIPE) /* fclose is broken for pipes in HP/UX */
471             s->in  += len;
489         s->in += s->stream.avail_in;
492         s->in -= s->stream.avail_in;
505                  * different from s->out in case of concatenated .gz files.
528    or -1 in case of end of file or error.
563       gzgets returns buf, or Z_NULL in case of error.
584    gzwrite returns the number of bytes actually written (0 in case of error).
609         s->in += s->stream.avail_in;
612         s->in -= s->stream.avail_in;
624    control of the format string, as in fprintf. gzprintf returns the number of
625    uncompressed bytes actually written (0 in case of error).
703    gzputc returns the value that was written, or -1 in case of error.
718       gzputs returns the number of characters written, or -1 in case of error.
730    flush is as in the deflate() function.
764          * all the available space in the output buffer:
788    compressed file. The offset represents a number of bytes in the
789       gzseek returns the resulting offset location as measured in bytes from
790    the beginning of the uncompressed stream, or -1 in case of error.
811             offset -= s->in;
830         return s->in;
848         s->in = s->out = offset;
898     s->in = 0;
905    given compressed file. This position represents a number of bytes in the
945    Outputs a long in LSB order to the given file
959    Reads a long in LSB order from the given gz_stream. Sets z_err in case
995         putLong (s->file, (uLong)(s->in & 0xffffffff));
1010    error occurred in the file system and not in the compression library,