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/* zutil.c -- target dependent utility functions for the compression library
* Copyright (C) 1995-2017 Jean-loup Gailly
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/* @(#) $Id$ */
#include "zutil.h"
#ifdef WITH_GZFILEOP
# include "gzguts.h"
#endif
const char * const z_errmsg[10] = {
(const char *)"need dictionary", /* Z_NEED_DICT 2 */
(const char *)"stream end", /* Z_STREAM_END 1 */
(const char *)"", /* Z_OK 0 */
(const char *)"file error", /* Z_ERRNO (-1) */
(const char *)"stream error", /* Z_STREAM_ERROR (-2) */
(const char *)"data error", /* Z_DATA_ERROR (-3) */
(const char *)"insufficient memory", /* Z_MEM_ERROR (-4) */
(const char *)"buffer error", /* Z_BUF_ERROR (-5) */
(const char *)"incompatible version",/* Z_VERSION_ERROR (-6) */
(const char *)""
};
const char zlibng_string[] =
" zlib-ng 1.9.9 forked from zlib 1.2.11 ";
#ifdef ZLIB_COMPAT
const char * ZEXPORT zlibVersion(void)
{
return ZLIB_VERSION;
}
#endif
const char * ZEXPORT zlibng_version(void)
{
return ZLIBNG_VERSION;
}
unsigned long ZEXPORT PREFIX(zlibCompileFlags)(void)
{
unsigned long flags;
flags = 0;
switch ((int)(sizeof(unsigned int))) {
case 2: break;
case 4: flags += 1; break;
case 8: flags += 2; break;
default: flags += 3;
}
switch ((int)(sizeof(unsigned long))) {
case 2: break;
case 4: flags += 1 << 2; break;
case 8: flags += 2 << 2; break;
default: flags += 3 << 2;
}
switch ((int)(sizeof(void *))) {
case 2: break;
case 4: flags += 1 << 4; break;
case 8: flags += 2 << 4; break;
default: flags += 3 << 4;
}
switch ((int)(sizeof(z_off_t))) {
case 2: break;
case 4: flags += 1 << 6; break;
case 8: flags += 2 << 6; break;
default: flags += 3 << 6;
}
#ifdef ZLIB_DEBUG
flags += 1 << 8;
#endif
#ifdef ZLIB_WINAPI
flags += 1 << 10;
#endif
#ifdef BUILDFIXED
flags += 1 << 12;
#endif
#ifdef DYNAMIC_CRC_TABLE
flags += 1 << 13;
#endif
#ifdef NO_GZCOMPRESS
flags += 1L << 16;
#endif
#ifdef NO_GZIP
flags += 1L << 17;
#endif
#ifdef PKZIP_BUG_WORKAROUND
flags += 1L << 20;
#endif
return flags;
}
#ifdef ZLIB_DEBUG
# ifndef verbose
# define verbose 0
# endif
int ZLIB_INTERNAL z_verbose = verbose;
void ZLIB_INTERNAL z_error (m)
char *m;
{
fprintf(stderr, "%s\n", m);
exit(1);
}
#endif
/* exported to allow conversion of error code to string for compress() and
* uncompress()
*/
const char * ZEXPORT PREFIX(zError)(int err)
{
return ERR_MSG(err);
}
#ifndef MY_ZCALLOC /* Any system without a special alloc function */
void ZLIB_INTERNAL *zcalloc (void *opaque, unsigned items, unsigned size)
{
(void)opaque;
return sizeof(unsigned int) > 2 ? (void *)malloc(items * size) :
(void *)calloc(items, size);
}
void ZLIB_INTERNAL zcfree (void *opaque, void *ptr)
{
(void)opaque;
free(ptr);
}
#endif /* MY_ZCALLOC */
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