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Diffstat (limited to 'utils/zenutils/libraries/zlib123/zlib/zutil.c')
-rw-r--r--[-rwxr-xr-x]utils/zenutils/libraries/zlib123/zlib/zutil.c636
1 files changed, 318 insertions, 318 deletions
diff --git a/utils/zenutils/libraries/zlib123/zlib/zutil.c b/utils/zenutils/libraries/zlib123/zlib/zutil.c
index 0f4bd7871d..d55f5948a3 100755..100644
--- a/utils/zenutils/libraries/zlib123/zlib/zutil.c
+++ b/utils/zenutils/libraries/zlib123/zlib/zutil.c
@@ -1,318 +1,318 @@
1/* zutil.c -- target dependent utility functions for the compression library 1/* zutil.c -- target dependent utility functions for the compression library
2 * Copyright (C) 1995-2005 Jean-loup Gailly. 2 * Copyright (C) 1995-2005 Jean-loup Gailly.
3 * For conditions of distribution and use, see copyright notice in zlib.h 3 * For conditions of distribution and use, see copyright notice in zlib.h
4 */ 4 */
5 5
6/* @(#) $Id$ */ 6/* @(#) $Id$ */
7 7
8#include "zutil.h" 8#include "zutil.h"
9 9
10#ifndef NO_DUMMY_DECL 10#ifndef NO_DUMMY_DECL
11struct internal_state {int dummy;}; /* for buggy compilers */ 11struct internal_state {int dummy;}; /* for buggy compilers */
12#endif 12#endif
13 13
14const char * const z_errmsg[10] = { 14const char * const z_errmsg[10] = {
15"need dictionary", /* Z_NEED_DICT 2 */ 15"need dictionary", /* Z_NEED_DICT 2 */
16"stream end", /* Z_STREAM_END 1 */ 16"stream end", /* Z_STREAM_END 1 */
17"", /* Z_OK 0 */ 17"", /* Z_OK 0 */
18"file error", /* Z_ERRNO (-1) */ 18"file error", /* Z_ERRNO (-1) */
19"stream error", /* Z_STREAM_ERROR (-2) */ 19"stream error", /* Z_STREAM_ERROR (-2) */
20"data error", /* Z_DATA_ERROR (-3) */ 20"data error", /* Z_DATA_ERROR (-3) */
21"insufficient memory", /* Z_MEM_ERROR (-4) */ 21"insufficient memory", /* Z_MEM_ERROR (-4) */
22"buffer error", /* Z_BUF_ERROR (-5) */ 22"buffer error", /* Z_BUF_ERROR (-5) */
23"incompatible version",/* Z_VERSION_ERROR (-6) */ 23"incompatible version",/* Z_VERSION_ERROR (-6) */
24""}; 24""};
25 25
26 26
27const char * ZEXPORT zlibVersion() 27const char * ZEXPORT zlibVersion()
28{ 28{
29 return ZLIB_VERSION; 29 return ZLIB_VERSION;
30} 30}
31 31
32uLong ZEXPORT zlibCompileFlags() 32uLong ZEXPORT zlibCompileFlags()
33{ 33{
34 uLong flags; 34 uLong flags;
35 35
36 flags = 0; 36 flags = 0;
37 switch (sizeof(uInt)) { 37 switch (sizeof(uInt)) {
38 case 2: break; 38 case 2: break;
39 case 4: flags += 1; break; 39 case 4: flags += 1; break;
40 case 8: flags += 2; break; 40 case 8: flags += 2; break;
41 default: flags += 3; 41 default: flags += 3;
42 } 42 }
43 switch (sizeof(uLong)) { 43 switch (sizeof(uLong)) {
44 case 2: break; 44 case 2: break;
45 case 4: flags += 1 << 2; break; 45 case 4: flags += 1 << 2; break;
46 case 8: flags += 2 << 2; break; 46 case 8: flags += 2 << 2; break;
47 default: flags += 3 << 2; 47 default: flags += 3 << 2;
48 } 48 }
49 switch (sizeof(voidpf)) { 49 switch (sizeof(voidpf)) {
50 case 2: break; 50 case 2: break;
51 case 4: flags += 1 << 4; break; 51 case 4: flags += 1 << 4; break;
52 case 8: flags += 2 << 4; break; 52 case 8: flags += 2 << 4; break;
53 default: flags += 3 << 4; 53 default: flags += 3 << 4;
54 } 54 }
55 switch (sizeof(z_off_t)) { 55 switch (sizeof(z_off_t)) {
56 case 2: break; 56 case 2: break;
57 case 4: flags += 1 << 6; break; 57 case 4: flags += 1 << 6; break;
58 case 8: flags += 2 << 6; break; 58 case 8: flags += 2 << 6; break;
59 default: flags += 3 << 6; 59 default: flags += 3 << 6;
60 } 60 }
61#ifdef DEBUG 61#ifdef DEBUG
62 flags += 1 << 8; 62 flags += 1 << 8;
63#endif 63#endif
64#if defined(ASMV) || defined(ASMINF) 64#if defined(ASMV) || defined(ASMINF)
65 flags += 1 << 9; 65 flags += 1 << 9;
66#endif 66#endif
67#ifdef ZLIB_WINAPI 67#ifdef ZLIB_WINAPI
68 flags += 1 << 10; 68 flags += 1 << 10;
69#endif 69#endif
70#ifdef BUILDFIXED 70#ifdef BUILDFIXED
71 flags += 1 << 12; 71 flags += 1 << 12;
72#endif 72#endif
73#ifdef DYNAMIC_CRC_TABLE 73#ifdef DYNAMIC_CRC_TABLE
74 flags += 1 << 13; 74 flags += 1 << 13;
75#endif 75#endif
76#ifdef NO_GZCOMPRESS 76#ifdef NO_GZCOMPRESS
77 flags += 1L << 16; 77 flags += 1L << 16;
78#endif 78#endif
79#ifdef NO_GZIP 79#ifdef NO_GZIP
80 flags += 1L << 17; 80 flags += 1L << 17;
81#endif 81#endif
82#ifdef PKZIP_BUG_WORKAROUND 82#ifdef PKZIP_BUG_WORKAROUND
83 flags += 1L << 20; 83 flags += 1L << 20;
84#endif 84#endif
85#ifdef FASTEST 85#ifdef FASTEST
86 flags += 1L << 21; 86 flags += 1L << 21;
87#endif 87#endif
88#ifdef STDC 88#ifdef STDC
89# ifdef NO_vsnprintf 89# ifdef NO_vsnprintf
90 flags += 1L << 25; 90 flags += 1L << 25;
91# ifdef HAS_vsprintf_void 91# ifdef HAS_vsprintf_void
92 flags += 1L << 26; 92 flags += 1L << 26;
93# endif 93# endif
94# else 94# else
95# ifdef HAS_vsnprintf_void 95# ifdef HAS_vsnprintf_void
96 flags += 1L << 26; 96 flags += 1L << 26;
97# endif 97# endif
98# endif 98# endif
99#else 99#else
100 flags += 1L << 24; 100 flags += 1L << 24;
101# ifdef NO_snprintf 101# ifdef NO_snprintf
102 flags += 1L << 25; 102 flags += 1L << 25;
103# ifdef HAS_sprintf_void 103# ifdef HAS_sprintf_void
104 flags += 1L << 26; 104 flags += 1L << 26;
105# endif 105# endif
106# else 106# else
107# ifdef HAS_snprintf_void 107# ifdef HAS_snprintf_void
108 flags += 1L << 26; 108 flags += 1L << 26;
109# endif 109# endif
110# endif 110# endif
111#endif 111#endif
112 return flags; 112 return flags;
113} 113}
114 114
115#ifdef DEBUG 115#ifdef DEBUG
116 116
117# ifndef verbose 117# ifndef verbose
118# define verbose 0 118# define verbose 0
119# endif 119# endif
120int z_verbose = verbose; 120int z_verbose = verbose;
121 121
122void z_error (m) 122void z_error (m)
123 char *m; 123 char *m;
124{ 124{
125 fprintf(stderr, "%s\n", m); 125 fprintf(stderr, "%s\n", m);
126 exit(1); 126 exit(1);
127} 127}
128#endif 128#endif
129 129
130/* exported to allow conversion of error code to string for compress() and 130/* exported to allow conversion of error code to string for compress() and
131 * uncompress() 131 * uncompress()
132 */ 132 */
133const char * ZEXPORT zError(err) 133const char * ZEXPORT zError(err)
134 int err; 134 int err;
135{ 135{
136 return ERR_MSG(err); 136 return ERR_MSG(err);
137} 137}
138 138
139#if defined(_WIN32_WCE) 139#if defined(_WIN32_WCE)
140 /* The Microsoft C Run-Time Library for Windows CE doesn't have 140 /* The Microsoft C Run-Time Library for Windows CE doesn't have
141 * errno. We define it as a global variable to simplify porting. 141 * errno. We define it as a global variable to simplify porting.
142 * Its value is always 0 and should not be used. 142 * Its value is always 0 and should not be used.
143 */ 143 */
144 int errno = 0; 144 int errno = 0;
145#endif 145#endif
146 146
147#ifndef HAVE_MEMCPY 147#ifndef HAVE_MEMCPY
148 148
149void zmemcpy(dest, source, len) 149void zmemcpy(dest, source, len)
150 Bytef* dest; 150 Bytef* dest;
151 const Bytef* source; 151 const Bytef* source;
152 uInt len; 152 uInt len;
153{ 153{
154 if (len == 0) return; 154 if (len == 0) return;
155 do { 155 do {
156 *dest++ = *source++; /* ??? to be unrolled */ 156 *dest++ = *source++; /* ??? to be unrolled */
157 } while (--len != 0); 157 } while (--len != 0);
158} 158}
159 159
160int zmemcmp(s1, s2, len) 160int zmemcmp(s1, s2, len)
161 const Bytef* s1; 161 const Bytef* s1;
162 const Bytef* s2; 162 const Bytef* s2;
163 uInt len; 163 uInt len;
164{ 164{
165 uInt j; 165 uInt j;
166 166
167 for (j = 0; j < len; j++) { 167 for (j = 0; j < len; j++) {
168 if (s1[j] != s2[j]) return 2*(s1[j] > s2[j])-1; 168 if (s1[j] != s2[j]) return 2*(s1[j] > s2[j])-1;
169 } 169 }
170 return 0; 170 return 0;
171} 171}
172 172
173void zmemzero(dest, len) 173void zmemzero(dest, len)
174 Bytef* dest; 174 Bytef* dest;
175 uInt len; 175 uInt len;
176{ 176{
177 if (len == 0) return; 177 if (len == 0) return;
178 do { 178 do {
179 *dest++ = 0; /* ??? to be unrolled */ 179 *dest++ = 0; /* ??? to be unrolled */
180 } while (--len != 0); 180 } while (--len != 0);
181} 181}
182#endif 182#endif
183 183
184 184
185#ifdef SYS16BIT 185#ifdef SYS16BIT
186 186
187#ifdef __TURBOC__ 187#ifdef __TURBOC__
188/* Turbo C in 16-bit mode */ 188/* Turbo C in 16-bit mode */
189 189
190# define MY_ZCALLOC 190# define MY_ZCALLOC
191 191
192/* Turbo C malloc() does not allow dynamic allocation of 64K bytes 192/* Turbo C malloc() does not allow dynamic allocation of 64K bytes
193 * and farmalloc(64K) returns a pointer with an offset of 8, so we 193 * and farmalloc(64K) returns a pointer with an offset of 8, so we
194 * must fix the pointer. Warning: the pointer must be put back to its 194 * must fix the pointer. Warning: the pointer must be put back to its
195 * original form in order to free it, use zcfree(). 195 * original form in order to free it, use zcfree().
196 */ 196 */
197 197
198#define MAX_PTR 10 198#define MAX_PTR 10
199/* 10*64K = 640K */ 199/* 10*64K = 640K */
200 200
201local int next_ptr = 0; 201local int next_ptr = 0;
202 202
203typedef struct ptr_table_s { 203typedef struct ptr_table_s {
204 voidpf org_ptr; 204 voidpf org_ptr;
205 voidpf new_ptr; 205 voidpf new_ptr;
206} ptr_table; 206} ptr_table;
207 207
208local ptr_table table[MAX_PTR]; 208local ptr_table table[MAX_PTR];
209/* This table is used to remember the original form of pointers 209/* This table is used to remember the original form of pointers
210 * to large buffers (64K). Such pointers are normalized with a zero offset. 210 * to large buffers (64K). Such pointers are normalized with a zero offset.
211 * Since MSDOS is not a preemptive multitasking OS, this table is not 211 * Since MSDOS is not a preemptive multitasking OS, this table is not
212 * protected from concurrent access. This hack doesn't work anyway on 212 * protected from concurrent access. This hack doesn't work anyway on
213 * a protected system like OS/2. Use Microsoft C instead. 213 * a protected system like OS/2. Use Microsoft C instead.
214 */ 214 */
215 215
216voidpf zcalloc (voidpf opaque, unsigned items, unsigned size) 216voidpf zcalloc (voidpf opaque, unsigned items, unsigned size)
217{ 217{
218 voidpf buf = opaque; /* just to make some compilers happy */ 218 voidpf buf = opaque; /* just to make some compilers happy */
219 ulg bsize = (ulg)items*size; 219 ulg bsize = (ulg)items*size;
220 220
221 /* If we allocate less than 65520 bytes, we assume that farmalloc 221 /* If we allocate less than 65520 bytes, we assume that farmalloc
222 * will return a usable pointer which doesn't have to be normalized. 222 * will return a usable pointer which doesn't have to be normalized.
223 */ 223 */
224 if (bsize < 65520L) { 224 if (bsize < 65520L) {
225 buf = farmalloc(bsize); 225 buf = farmalloc(bsize);
226 if (*(ush*)&buf != 0) return buf; 226 if (*(ush*)&buf != 0) return buf;
227 } else { 227 } else {
228 buf = farmalloc(bsize + 16L); 228 buf = farmalloc(bsize + 16L);
229 } 229 }
230 if (buf == NULL || next_ptr >= MAX_PTR) return NULL; 230 if (buf == NULL || next_ptr >= MAX_PTR) return NULL;
231 table[next_ptr].org_ptr = buf; 231 table[next_ptr].org_ptr = buf;
232 232
233 /* Normalize the pointer to seg:0 */ 233 /* Normalize the pointer to seg:0 */
234 *((ush*)&buf+1) += ((ush)((uch*)buf-0) + 15) >> 4; 234 *((ush*)&buf+1) += ((ush)((uch*)buf-0) + 15) >> 4;
235 *(ush*)&buf = 0; 235 *(ush*)&buf = 0;
236 table[next_ptr++].new_ptr = buf; 236 table[next_ptr++].new_ptr = buf;
237 return buf; 237 return buf;
238} 238}
239 239
240void zcfree (voidpf opaque, voidpf ptr) 240void zcfree (voidpf opaque, voidpf ptr)
241{ 241{
242 int n; 242 int n;
243 if (*(ush*)&ptr != 0) { /* object < 64K */ 243 if (*(ush*)&ptr != 0) { /* object < 64K */
244 farfree(ptr); 244 farfree(ptr);
245 return; 245 return;
246 } 246 }
247 /* Find the original pointer */ 247 /* Find the original pointer */
248 for (n = 0; n < next_ptr; n++) { 248 for (n = 0; n < next_ptr; n++) {
249 if (ptr != table[n].new_ptr) continue; 249 if (ptr != table[n].new_ptr) continue;
250 250
251 farfree(table[n].org_ptr); 251 farfree(table[n].org_ptr);
252 while (++n < next_ptr) { 252 while (++n < next_ptr) {
253 table[n-1] = table[n]; 253 table[n-1] = table[n];
254 } 254 }
255 next_ptr--; 255 next_ptr--;
256 return; 256 return;
257 } 257 }
258 ptr = opaque; /* just to make some compilers happy */ 258 ptr = opaque; /* just to make some compilers happy */
259 Assert(0, "zcfree: ptr not found"); 259 Assert(0, "zcfree: ptr not found");
260} 260}
261 261
262#endif /* __TURBOC__ */ 262#endif /* __TURBOC__ */
263 263
264 264
265#ifdef M_I86 265#ifdef M_I86
266/* Microsoft C in 16-bit mode */ 266/* Microsoft C in 16-bit mode */
267 267
268# define MY_ZCALLOC 268# define MY_ZCALLOC
269 269
270#if (!defined(_MSC_VER) || (_MSC_VER <= 600)) 270#if (!defined(_MSC_VER) || (_MSC_VER <= 600))
271# define _halloc halloc 271# define _halloc halloc
272# define _hfree hfree 272# define _hfree hfree
273#endif 273#endif
274 274
275voidpf zcalloc (voidpf opaque, unsigned items, unsigned size) 275voidpf zcalloc (voidpf opaque, unsigned items, unsigned size)
276{ 276{
277 if (opaque) opaque = 0; /* to make compiler happy */ 277 if (opaque) opaque = 0; /* to make compiler happy */
278 return _halloc((long)items, size); 278 return _halloc((long)items, size);
279} 279}
280 280
281void zcfree (voidpf opaque, voidpf ptr) 281void zcfree (voidpf opaque, voidpf ptr)
282{ 282{
283 if (opaque) opaque = 0; /* to make compiler happy */ 283 if (opaque) opaque = 0; /* to make compiler happy */
284 _hfree(ptr); 284 _hfree(ptr);
285} 285}
286 286
287#endif /* M_I86 */ 287#endif /* M_I86 */
288 288
289#endif /* SYS16BIT */ 289#endif /* SYS16BIT */
290 290
291 291
292#ifndef MY_ZCALLOC /* Any system without a special alloc function */ 292#ifndef MY_ZCALLOC /* Any system without a special alloc function */
293 293
294#ifndef STDC 294#ifndef STDC
295extern voidp malloc OF((uInt size)); 295extern voidp malloc OF((uInt size));
296extern voidp calloc OF((uInt items, uInt size)); 296extern voidp calloc OF((uInt items, uInt size));
297extern void free OF((voidpf ptr)); 297extern void free OF((voidpf ptr));
298#endif 298#endif
299 299
300voidpf zcalloc (opaque, items, size) 300voidpf zcalloc (opaque, items, size)
301 voidpf opaque; 301 voidpf opaque;
302 unsigned items; 302 unsigned items;
303 unsigned size; 303 unsigned size;
304{ 304{
305 if (opaque) items += size - size; /* make compiler happy */ 305 if (opaque) items += size - size; /* make compiler happy */
306 return sizeof(uInt) > 2 ? (voidpf)malloc(items * size) : 306 return sizeof(uInt) > 2 ? (voidpf)malloc(items * size) :
307 (voidpf)calloc(items, size); 307 (voidpf)calloc(items, size);
308} 308}
309 309
310void zcfree (opaque, ptr) 310void zcfree (opaque, ptr)
311 voidpf opaque; 311 voidpf opaque;
312 voidpf ptr; 312 voidpf ptr;
313{ 313{
314 free(ptr); 314 free(ptr);
315 if (opaque) return; /* make compiler happy */ 315 if (opaque) return; /* make compiler happy */
316} 316}
317 317
318#endif /* MY_ZCALLOC */ 318#endif /* MY_ZCALLOC */
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