Viewing file:  zlib-2.c (1.22 KB) -rw-r--r--
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typedef void * (*alloc_func)(void * opaque, unsigned items, unsigned size);
typedef void (*free_func)(void * opaque, void * address);
typedef struct z_stream_s {
char *msg;
alloc_func zalloc;
free_func zfree;
void * opaque;
} z_stream;
void * zcalloc(void * opaque, unsigned items, unsigned size);
void zcfree(void * opaque, void * ptr);
int deflateInit2_(z_stream *strm, int level, int method, int windowBits,
int memLevel, int strategy, const char *version,
int stream_size) {
int noheader = 0;
static const char *my_version = "1.1.3";
if (version == 0 || version[0] != my_version[0] ||
stream_size != sizeof(z_stream)) {
return (-6);
}
if (strm == 0)
return (-2);
strm->msg = 0;
if (strm->zalloc == 0) {
strm->zalloc = zcalloc;
strm->opaque = (void *)0;
}
if (strm->zfree == 0)
strm->zfree = zcfree;
if (level == (-1))
level = 6;
if (windowBits < 0) {
noheader = 1;
windowBits = -windowBits;
}
if (memLevel < 1 || memLevel > 9 || method != 8 || windowBits < 8 ||
windowBits > 15 || level < 0 || level > 9 || strategy < 0 ||
strategy > 2) {
return (-2);
}
(*((strm)->zalloc))((strm)->opaque, (1), 112);
return 0;
}
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