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74 lines
1.7 KiB
C
74 lines
1.7 KiB
C
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/* zutil.c -- target dependent utility functions for the compression library
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* Copyright (C) 1995-2005 Jean-loup Gailly.
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* For conditions of distribution and use, see copyright notice in zlib.h
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*/
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/* @(#) $Id$ */
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#include "zutil.h"
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#ifndef NO_DUMMY_DECL
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struct internal_state {int dummy;}; /* for buggy compilers */
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#endif
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const char * const z_errmsg[10] = {
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"need dictionary", /* Z_NEED_DICT 2 */
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"stream end", /* Z_STREAM_END 1 */
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"", /* Z_OK 0 */
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"file error", /* Z_ERRNO (-1) */
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"stream error", /* Z_STREAM_ERROR (-2) */
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"data error", /* Z_DATA_ERROR (-3) */
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"insufficient memory", /* Z_MEM_ERROR (-4) */
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"buffer error", /* Z_BUF_ERROR (-5) */
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"incompatible version",/* Z_VERSION_ERROR (-6) */
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""};
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#ifdef DEBUG
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#ifndef verbose
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#define verbose 0
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#endif
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int z_verbose = verbose;
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void z_error (m)
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char *m;
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{
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fprintf(stderr, "%s\n", m);
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hang ();
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}
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#endif
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/* exported to allow conversion of error code to string for compress() and
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* uncompress()
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*/
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#ifndef MY_ZCALLOC /* Any system without a special alloc function */
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#ifndef STDC
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extern voidp malloc OF((uInt size));
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extern voidp calloc OF((uInt items, uInt size));
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extern void free OF((voidpf ptr));
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#endif
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voidpf zcalloc (opaque, items, size)
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voidpf opaque;
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unsigned items;
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unsigned size;
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{
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if (opaque)
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items += size - size; /* make compiler happy */
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return sizeof(uInt) > 2 ? (voidpf)malloc(items * size) :
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(voidpf)calloc(items, size);
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}
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void zcfree (opaque, ptr, nb)
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voidpf opaque;
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voidpf ptr;
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unsigned nb;
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{
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free(ptr);
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if (opaque)
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return; /* make compiler happy */
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}
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#endif /* MY_ZCALLOC */
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