blob: 227343e48d3fb1305a229ac4b72559bda6351b48 [file] [log] [blame]
Mike Frysingere89516f2011-04-08 12:23:30 +00001/* zutil.c -- target dependent utility functions for the compression library
2 * Copyright (C) 1995-2005 Jean-loup Gailly.
3 * For conditions of distribution and use, see copyright notice in zlib.h
4 */
5
6/* @(#) $Id$ */
7
8#include "zutil.h"
9
10#ifndef NO_DUMMY_DECL
11struct internal_state {int dummy;}; /* for buggy compilers */
12#endif
13
14const char * const z_errmsg[10] = {
15"need dictionary", /* Z_NEED_DICT 2 */
16"stream end", /* Z_STREAM_END 1 */
17"", /* Z_OK 0 */
18"file error", /* Z_ERRNO (-1) */
19"stream error", /* Z_STREAM_ERROR (-2) */
20"data error", /* Z_DATA_ERROR (-3) */
21"insufficient memory", /* Z_MEM_ERROR (-4) */
22"buffer error", /* Z_BUF_ERROR (-5) */
23"incompatible version",/* Z_VERSION_ERROR (-6) */
24""};
25
26#ifdef DEBUG
27
28#ifndef verbose
29#define verbose 0
30#endif
31int z_verbose = verbose;
32
33void z_error (m)
34 char *m;
35{
36 fprintf(stderr, "%s\n", m);
37 hang ();
38}
39#endif
40
41/* exported to allow conversion of error code to string for compress() and
42 * uncompress()
43 */
44#ifndef MY_ZCALLOC /* Any system without a special alloc function */
45
Simon Glass6e295182015-09-02 17:24:57 -060046#ifdef __UBOOT__
47#include <malloc.h>
48#else
Mike Frysingere89516f2011-04-08 12:23:30 +000049#ifndef STDC
50extern voidp malloc OF((uInt size));
51extern voidp calloc OF((uInt items, uInt size));
52extern void free OF((voidpf ptr));
53#endif
Marcel Ziswiler45196682015-08-18 13:06:37 +020054#endif
Mike Frysingere89516f2011-04-08 12:23:30 +000055
Kim Phillipsee820b52012-10-29 13:34:35 +000056voidpf zcalloc(voidpf opaque, unsigned items, unsigned size)
Mike Frysingere89516f2011-04-08 12:23:30 +000057{
58 if (opaque)
59 items += size - size; /* make compiler happy */
60 return sizeof(uInt) > 2 ? (voidpf)malloc(items * size) :
61 (voidpf)calloc(items, size);
62}
63
Kim Phillipsee820b52012-10-29 13:34:35 +000064void zcfree(voidpf opaque, voidpf ptr, unsigned nb)
Mike Frysingere89516f2011-04-08 12:23:30 +000065{
66 free(ptr);
67 if (opaque)
68 return; /* make compiler happy */
69}
70
71#endif /* MY_ZCALLOC */