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authorNicolas Pennequin <nicolas.pennequin@free.fr>2008-07-11 16:51:25 +0000
committerNicolas Pennequin <nicolas.pennequin@free.fr>2008-07-11 16:51:25 +0000
commitca5bb76d2b8f65aa97e50b633f828c1deb241526 (patch)
tree453a1b2de3a0dc0d0b2f7080d10d033bf8fbcdf1 /utils/zenutils/libraries/zlib123/zlib/example.c
parent141774be48940d56e3ad4dbf451d245b61d4f8b2 (diff)
downloadrockbox-ca5bb76d2b8f65aa97e50b633f828c1deb241526.tar.gz
rockbox-ca5bb76d2b8f65aa97e50b633f828c1deb241526.zip
Delete the svn:executable property and set svn:eol-style to native for all those text files.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18012 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'utils/zenutils/libraries/zlib123/zlib/example.c')
-rw-r--r--[-rwxr-xr-x]utils/zenutils/libraries/zlib123/zlib/example.c1130
1 files changed, 565 insertions, 565 deletions
diff --git a/utils/zenutils/libraries/zlib123/zlib/example.c b/utils/zenutils/libraries/zlib123/zlib/example.c
index 455a1d062a..6c8a0ee763 100755..100644
--- a/utils/zenutils/libraries/zlib123/zlib/example.c
+++ b/utils/zenutils/libraries/zlib123/zlib/example.c
@@ -1,565 +1,565 @@
1/* example.c -- usage example of the zlib compression library 1/* example.c -- usage example of the zlib compression library
2 * Copyright (C) 1995-2004 Jean-loup Gailly. 2 * Copyright (C) 1995-2004 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 <stdio.h> 8#include <stdio.h>
9#include "zlib.h" 9#include "zlib.h"
10 10
11#ifdef STDC 11#ifdef STDC
12# include <string.h> 12# include <string.h>
13# include <stdlib.h> 13# include <stdlib.h>
14#endif 14#endif
15 15
16#if defined(VMS) || defined(RISCOS) 16#if defined(VMS) || defined(RISCOS)
17# define TESTFILE "foo-gz" 17# define TESTFILE "foo-gz"
18#else 18#else
19# define TESTFILE "foo.gz" 19# define TESTFILE "foo.gz"
20#endif 20#endif
21 21
22#define CHECK_ERR(err, msg) { \ 22#define CHECK_ERR(err, msg) { \
23 if (err != Z_OK) { \ 23 if (err != Z_OK) { \
24 fprintf(stderr, "%s error: %d\n", msg, err); \ 24 fprintf(stderr, "%s error: %d\n", msg, err); \
25 exit(1); \ 25 exit(1); \
26 } \ 26 } \
27} 27}
28 28
29const char hello[] = "hello, hello!"; 29const char hello[] = "hello, hello!";
30/* "hello world" would be more standard, but the repeated "hello" 30/* "hello world" would be more standard, but the repeated "hello"
31 * stresses the compression code better, sorry... 31 * stresses the compression code better, sorry...
32 */ 32 */
33 33
34const char dictionary[] = "hello"; 34const char dictionary[] = "hello";
35uLong dictId; /* Adler32 value of the dictionary */ 35uLong dictId; /* Adler32 value of the dictionary */
36 36
37void test_compress OF((Byte *compr, uLong comprLen, 37void test_compress OF((Byte *compr, uLong comprLen,
38 Byte *uncompr, uLong uncomprLen)); 38 Byte *uncompr, uLong uncomprLen));
39void test_gzio OF((const char *fname, 39void test_gzio OF((const char *fname,
40 Byte *uncompr, uLong uncomprLen)); 40 Byte *uncompr, uLong uncomprLen));
41void test_deflate OF((Byte *compr, uLong comprLen)); 41void test_deflate OF((Byte *compr, uLong comprLen));
42void test_inflate OF((Byte *compr, uLong comprLen, 42void test_inflate OF((Byte *compr, uLong comprLen,
43 Byte *uncompr, uLong uncomprLen)); 43 Byte *uncompr, uLong uncomprLen));
44void test_large_deflate OF((Byte *compr, uLong comprLen, 44void test_large_deflate OF((Byte *compr, uLong comprLen,
45 Byte *uncompr, uLong uncomprLen)); 45 Byte *uncompr, uLong uncomprLen));
46void test_large_inflate OF((Byte *compr, uLong comprLen, 46void test_large_inflate OF((Byte *compr, uLong comprLen,
47 Byte *uncompr, uLong uncomprLen)); 47 Byte *uncompr, uLong uncomprLen));
48void test_flush OF((Byte *compr, uLong *comprLen)); 48void test_flush OF((Byte *compr, uLong *comprLen));
49void test_sync OF((Byte *compr, uLong comprLen, 49void test_sync OF((Byte *compr, uLong comprLen,
50 Byte *uncompr, uLong uncomprLen)); 50 Byte *uncompr, uLong uncomprLen));
51void test_dict_deflate OF((Byte *compr, uLong comprLen)); 51void test_dict_deflate OF((Byte *compr, uLong comprLen));
52void test_dict_inflate OF((Byte *compr, uLong comprLen, 52void test_dict_inflate OF((Byte *compr, uLong comprLen,
53 Byte *uncompr, uLong uncomprLen)); 53 Byte *uncompr, uLong uncomprLen));
54int main OF((int argc, char *argv[])); 54int main OF((int argc, char *argv[]));
55 55
56/* =========================================================================== 56/* ===========================================================================
57 * Test compress() and uncompress() 57 * Test compress() and uncompress()
58 */ 58 */
59void test_compress(compr, comprLen, uncompr, uncomprLen) 59void test_compress(compr, comprLen, uncompr, uncomprLen)
60 Byte *compr, *uncompr; 60 Byte *compr, *uncompr;
61 uLong comprLen, uncomprLen; 61 uLong comprLen, uncomprLen;
62{ 62{
63 int err; 63 int err;
64 uLong len = (uLong)strlen(hello)+1; 64 uLong len = (uLong)strlen(hello)+1;
65 65
66 err = compress(compr, &comprLen, (const Bytef*)hello, len); 66 err = compress(compr, &comprLen, (const Bytef*)hello, len);
67 CHECK_ERR(err, "compress"); 67 CHECK_ERR(err, "compress");
68 68
69 strcpy((char*)uncompr, "garbage"); 69 strcpy((char*)uncompr, "garbage");
70 70
71 err = uncompress(uncompr, &uncomprLen, compr, comprLen); 71 err = uncompress(uncompr, &uncomprLen, compr, comprLen);
72 CHECK_ERR(err, "uncompress"); 72 CHECK_ERR(err, "uncompress");
73 73
74 if (strcmp((char*)uncompr, hello)) { 74 if (strcmp((char*)uncompr, hello)) {
75 fprintf(stderr, "bad uncompress\n"); 75 fprintf(stderr, "bad uncompress\n");
76 exit(1); 76 exit(1);
77 } else { 77 } else {
78 printf("uncompress(): %s\n", (char *)uncompr); 78 printf("uncompress(): %s\n", (char *)uncompr);
79 } 79 }
80} 80}
81 81
82/* =========================================================================== 82/* ===========================================================================
83 * Test read/write of .gz files 83 * Test read/write of .gz files
84 */ 84 */
85void test_gzio(fname, uncompr, uncomprLen) 85void test_gzio(fname, uncompr, uncomprLen)
86 const char *fname; /* compressed file name */ 86 const char *fname; /* compressed file name */
87 Byte *uncompr; 87 Byte *uncompr;
88 uLong uncomprLen; 88 uLong uncomprLen;
89{ 89{
90#ifdef NO_GZCOMPRESS 90#ifdef NO_GZCOMPRESS
91 fprintf(stderr, "NO_GZCOMPRESS -- gz* functions cannot compress\n"); 91 fprintf(stderr, "NO_GZCOMPRESS -- gz* functions cannot compress\n");
92#else 92#else
93 int err; 93 int err;
94 int len = (int)strlen(hello)+1; 94 int len = (int)strlen(hello)+1;
95 gzFile file; 95 gzFile file;
96 z_off_t pos; 96 z_off_t pos;
97 97
98 file = gzopen(fname, "wb"); 98 file = gzopen(fname, "wb");
99 if (file == NULL) { 99 if (file == NULL) {
100 fprintf(stderr, "gzopen error\n"); 100 fprintf(stderr, "gzopen error\n");
101 exit(1); 101 exit(1);
102 } 102 }
103 gzputc(file, 'h'); 103 gzputc(file, 'h');
104 if (gzputs(file, "ello") != 4) { 104 if (gzputs(file, "ello") != 4) {
105 fprintf(stderr, "gzputs err: %s\n", gzerror(file, &err)); 105 fprintf(stderr, "gzputs err: %s\n", gzerror(file, &err));
106 exit(1); 106 exit(1);
107 } 107 }
108 if (gzprintf(file, ", %s!", "hello") != 8) { 108 if (gzprintf(file, ", %s!", "hello") != 8) {
109 fprintf(stderr, "gzprintf err: %s\n", gzerror(file, &err)); 109 fprintf(stderr, "gzprintf err: %s\n", gzerror(file, &err));
110 exit(1); 110 exit(1);
111 } 111 }
112 gzseek(file, 1L, SEEK_CUR); /* add one zero byte */ 112 gzseek(file, 1L, SEEK_CUR); /* add one zero byte */
113 gzclose(file); 113 gzclose(file);
114 114
115 file = gzopen(fname, "rb"); 115 file = gzopen(fname, "rb");
116 if (file == NULL) { 116 if (file == NULL) {
117 fprintf(stderr, "gzopen error\n"); 117 fprintf(stderr, "gzopen error\n");
118 exit(1); 118 exit(1);
119 } 119 }
120 strcpy((char*)uncompr, "garbage"); 120 strcpy((char*)uncompr, "garbage");
121 121
122 if (gzread(file, uncompr, (unsigned)uncomprLen) != len) { 122 if (gzread(file, uncompr, (unsigned)uncomprLen) != len) {
123 fprintf(stderr, "gzread err: %s\n", gzerror(file, &err)); 123 fprintf(stderr, "gzread err: %s\n", gzerror(file, &err));
124 exit(1); 124 exit(1);
125 } 125 }
126 if (strcmp((char*)uncompr, hello)) { 126 if (strcmp((char*)uncompr, hello)) {
127 fprintf(stderr, "bad gzread: %s\n", (char*)uncompr); 127 fprintf(stderr, "bad gzread: %s\n", (char*)uncompr);
128 exit(1); 128 exit(1);
129 } else { 129 } else {
130 printf("gzread(): %s\n", (char*)uncompr); 130 printf("gzread(): %s\n", (char*)uncompr);
131 } 131 }
132 132
133 pos = gzseek(file, -8L, SEEK_CUR); 133 pos = gzseek(file, -8L, SEEK_CUR);
134 if (pos != 6 || gztell(file) != pos) { 134 if (pos != 6 || gztell(file) != pos) {
135 fprintf(stderr, "gzseek error, pos=%ld, gztell=%ld\n", 135 fprintf(stderr, "gzseek error, pos=%ld, gztell=%ld\n",
136 (long)pos, (long)gztell(file)); 136 (long)pos, (long)gztell(file));
137 exit(1); 137 exit(1);
138 } 138 }
139 139
140 if (gzgetc(file) != ' ') { 140 if (gzgetc(file) != ' ') {
141 fprintf(stderr, "gzgetc error\n"); 141 fprintf(stderr, "gzgetc error\n");
142 exit(1); 142 exit(1);
143 } 143 }
144 144
145 if (gzungetc(' ', file) != ' ') { 145 if (gzungetc(' ', file) != ' ') {
146 fprintf(stderr, "gzungetc error\n"); 146 fprintf(stderr, "gzungetc error\n");
147 exit(1); 147 exit(1);
148 } 148 }
149 149
150 gzgets(file, (char*)uncompr, (int)uncomprLen); 150 gzgets(file, (char*)uncompr, (int)uncomprLen);
151 if (strlen((char*)uncompr) != 7) { /* " hello!" */ 151 if (strlen((char*)uncompr) != 7) { /* " hello!" */
152 fprintf(stderr, "gzgets err after gzseek: %s\n", gzerror(file, &err)); 152 fprintf(stderr, "gzgets err after gzseek: %s\n", gzerror(file, &err));
153 exit(1); 153 exit(1);
154 } 154 }
155 if (strcmp((char*)uncompr, hello + 6)) { 155 if (strcmp((char*)uncompr, hello + 6)) {
156 fprintf(stderr, "bad gzgets after gzseek\n"); 156 fprintf(stderr, "bad gzgets after gzseek\n");
157 exit(1); 157 exit(1);
158 } else { 158 } else {
159 printf("gzgets() after gzseek: %s\n", (char*)uncompr); 159 printf("gzgets() after gzseek: %s\n", (char*)uncompr);
160 } 160 }
161 161
162 gzclose(file); 162 gzclose(file);
163#endif 163#endif
164} 164}
165 165
166/* =========================================================================== 166/* ===========================================================================
167 * Test deflate() with small buffers 167 * Test deflate() with small buffers
168 */ 168 */
169void test_deflate(compr, comprLen) 169void test_deflate(compr, comprLen)
170 Byte *compr; 170 Byte *compr;
171 uLong comprLen; 171 uLong comprLen;
172{ 172{
173 z_stream c_stream; /* compression stream */ 173 z_stream c_stream; /* compression stream */
174 int err; 174 int err;
175 uLong len = (uLong)strlen(hello)+1; 175 uLong len = (uLong)strlen(hello)+1;
176 176
177 c_stream.zalloc = (alloc_func)0; 177 c_stream.zalloc = (alloc_func)0;
178 c_stream.zfree = (free_func)0; 178 c_stream.zfree = (free_func)0;
179 c_stream.opaque = (voidpf)0; 179 c_stream.opaque = (voidpf)0;
180 180
181 err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION); 181 err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
182 CHECK_ERR(err, "deflateInit"); 182 CHECK_ERR(err, "deflateInit");
183 183
184 c_stream.next_in = (Bytef*)hello; 184 c_stream.next_in = (Bytef*)hello;
185 c_stream.next_out = compr; 185 c_stream.next_out = compr;
186 186
187 while (c_stream.total_in != len && c_stream.total_out < comprLen) { 187 while (c_stream.total_in != len && c_stream.total_out < comprLen) {
188 c_stream.avail_in = c_stream.avail_out = 1; /* force small buffers */ 188 c_stream.avail_in = c_stream.avail_out = 1; /* force small buffers */
189 err = deflate(&c_stream, Z_NO_FLUSH); 189 err = deflate(&c_stream, Z_NO_FLUSH);
190 CHECK_ERR(err, "deflate"); 190 CHECK_ERR(err, "deflate");
191 } 191 }
192 /* Finish the stream, still forcing small buffers: */ 192 /* Finish the stream, still forcing small buffers: */
193 for (;;) { 193 for (;;) {
194 c_stream.avail_out = 1; 194 c_stream.avail_out = 1;
195 err = deflate(&c_stream, Z_FINISH); 195 err = deflate(&c_stream, Z_FINISH);
196 if (err == Z_STREAM_END) break; 196 if (err == Z_STREAM_END) break;
197 CHECK_ERR(err, "deflate"); 197 CHECK_ERR(err, "deflate");
198 } 198 }
199 199
200 err = deflateEnd(&c_stream); 200 err = deflateEnd(&c_stream);
201 CHECK_ERR(err, "deflateEnd"); 201 CHECK_ERR(err, "deflateEnd");
202} 202}
203 203
204/* =========================================================================== 204/* ===========================================================================
205 * Test inflate() with small buffers 205 * Test inflate() with small buffers
206 */ 206 */
207void test_inflate(compr, comprLen, uncompr, uncomprLen) 207void test_inflate(compr, comprLen, uncompr, uncomprLen)
208 Byte *compr, *uncompr; 208 Byte *compr, *uncompr;
209 uLong comprLen, uncomprLen; 209 uLong comprLen, uncomprLen;
210{ 210{
211 int err; 211 int err;
212 z_stream d_stream; /* decompression stream */ 212 z_stream d_stream; /* decompression stream */
213 213
214 strcpy((char*)uncompr, "garbage"); 214 strcpy((char*)uncompr, "garbage");
215 215
216 d_stream.zalloc = (alloc_func)0; 216 d_stream.zalloc = (alloc_func)0;
217 d_stream.zfree = (free_func)0; 217 d_stream.zfree = (free_func)0;
218 d_stream.opaque = (voidpf)0; 218 d_stream.opaque = (voidpf)0;
219 219
220 d_stream.next_in = compr; 220 d_stream.next_in = compr;
221 d_stream.avail_in = 0; 221 d_stream.avail_in = 0;
222 d_stream.next_out = uncompr; 222 d_stream.next_out = uncompr;
223 223
224 err = inflateInit(&d_stream); 224 err = inflateInit(&d_stream);
225 CHECK_ERR(err, "inflateInit"); 225 CHECK_ERR(err, "inflateInit");
226 226
227 while (d_stream.total_out < uncomprLen && d_stream.total_in < comprLen) { 227 while (d_stream.total_out < uncomprLen && d_stream.total_in < comprLen) {
228 d_stream.avail_in = d_stream.avail_out = 1; /* force small buffers */ 228 d_stream.avail_in = d_stream.avail_out = 1; /* force small buffers */
229 err = inflate(&d_stream, Z_NO_FLUSH); 229 err = inflate(&d_stream, Z_NO_FLUSH);
230 if (err == Z_STREAM_END) break; 230 if (err == Z_STREAM_END) break;
231 CHECK_ERR(err, "inflate"); 231 CHECK_ERR(err, "inflate");
232 } 232 }
233 233
234 err = inflateEnd(&d_stream); 234 err = inflateEnd(&d_stream);
235 CHECK_ERR(err, "inflateEnd"); 235 CHECK_ERR(err, "inflateEnd");
236 236
237 if (strcmp((char*)uncompr, hello)) { 237 if (strcmp((char*)uncompr, hello)) {
238 fprintf(stderr, "bad inflate\n"); 238 fprintf(stderr, "bad inflate\n");
239 exit(1); 239 exit(1);
240 } else { 240 } else {
241 printf("inflate(): %s\n", (char *)uncompr); 241 printf("inflate(): %s\n", (char *)uncompr);
242 } 242 }
243} 243}
244 244
245/* =========================================================================== 245/* ===========================================================================
246 * Test deflate() with large buffers and dynamic change of compression level 246 * Test deflate() with large buffers and dynamic change of compression level
247 */ 247 */
248void test_large_deflate(compr, comprLen, uncompr, uncomprLen) 248void test_large_deflate(compr, comprLen, uncompr, uncomprLen)
249 Byte *compr, *uncompr; 249 Byte *compr, *uncompr;
250 uLong comprLen, uncomprLen; 250 uLong comprLen, uncomprLen;
251{ 251{
252 z_stream c_stream; /* compression stream */ 252 z_stream c_stream; /* compression stream */
253 int err; 253 int err;
254 254
255 c_stream.zalloc = (alloc_func)0; 255 c_stream.zalloc = (alloc_func)0;
256 c_stream.zfree = (free_func)0; 256 c_stream.zfree = (free_func)0;
257 c_stream.opaque = (voidpf)0; 257 c_stream.opaque = (voidpf)0;
258 258
259 err = deflateInit(&c_stream, Z_BEST_SPEED); 259 err = deflateInit(&c_stream, Z_BEST_SPEED);
260 CHECK_ERR(err, "deflateInit"); 260 CHECK_ERR(err, "deflateInit");
261 261
262 c_stream.next_out = compr; 262 c_stream.next_out = compr;
263 c_stream.avail_out = (uInt)comprLen; 263 c_stream.avail_out = (uInt)comprLen;
264 264
265 /* At this point, uncompr is still mostly zeroes, so it should compress 265 /* At this point, uncompr is still mostly zeroes, so it should compress
266 * very well: 266 * very well:
267 */ 267 */
268 c_stream.next_in = uncompr; 268 c_stream.next_in = uncompr;
269 c_stream.avail_in = (uInt)uncomprLen; 269 c_stream.avail_in = (uInt)uncomprLen;
270 err = deflate(&c_stream, Z_NO_FLUSH); 270 err = deflate(&c_stream, Z_NO_FLUSH);
271 CHECK_ERR(err, "deflate"); 271 CHECK_ERR(err, "deflate");
272 if (c_stream.avail_in != 0) { 272 if (c_stream.avail_in != 0) {
273 fprintf(stderr, "deflate not greedy\n"); 273 fprintf(stderr, "deflate not greedy\n");
274 exit(1); 274 exit(1);
275 } 275 }
276 276
277 /* Feed in already compressed data and switch to no compression: */ 277 /* Feed in already compressed data and switch to no compression: */
278 deflateParams(&c_stream, Z_NO_COMPRESSION, Z_DEFAULT_STRATEGY); 278 deflateParams(&c_stream, Z_NO_COMPRESSION, Z_DEFAULT_STRATEGY);
279 c_stream.next_in = compr; 279 c_stream.next_in = compr;
280 c_stream.avail_in = (uInt)comprLen/2; 280 c_stream.avail_in = (uInt)comprLen/2;
281 err = deflate(&c_stream, Z_NO_FLUSH); 281 err = deflate(&c_stream, Z_NO_FLUSH);
282 CHECK_ERR(err, "deflate"); 282 CHECK_ERR(err, "deflate");
283 283
284 /* Switch back to compressing mode: */ 284 /* Switch back to compressing mode: */
285 deflateParams(&c_stream, Z_BEST_COMPRESSION, Z_FILTERED); 285 deflateParams(&c_stream, Z_BEST_COMPRESSION, Z_FILTERED);
286 c_stream.next_in = uncompr; 286 c_stream.next_in = uncompr;
287 c_stream.avail_in = (uInt)uncomprLen; 287 c_stream.avail_in = (uInt)uncomprLen;
288 err = deflate(&c_stream, Z_NO_FLUSH); 288 err = deflate(&c_stream, Z_NO_FLUSH);
289 CHECK_ERR(err, "deflate"); 289 CHECK_ERR(err, "deflate");
290 290
291 err = deflate(&c_stream, Z_FINISH); 291 err = deflate(&c_stream, Z_FINISH);
292 if (err != Z_STREAM_END) { 292 if (err != Z_STREAM_END) {
293 fprintf(stderr, "deflate should report Z_STREAM_END\n"); 293 fprintf(stderr, "deflate should report Z_STREAM_END\n");
294 exit(1); 294 exit(1);
295 } 295 }
296 err = deflateEnd(&c_stream); 296 err = deflateEnd(&c_stream);
297 CHECK_ERR(err, "deflateEnd"); 297 CHECK_ERR(err, "deflateEnd");
298} 298}
299 299
300/* =========================================================================== 300/* ===========================================================================
301 * Test inflate() with large buffers 301 * Test inflate() with large buffers
302 */ 302 */
303void test_large_inflate(compr, comprLen, uncompr, uncomprLen) 303void test_large_inflate(compr, comprLen, uncompr, uncomprLen)
304 Byte *compr, *uncompr; 304 Byte *compr, *uncompr;
305 uLong comprLen, uncomprLen; 305 uLong comprLen, uncomprLen;
306{ 306{
307 int err; 307 int err;
308 z_stream d_stream; /* decompression stream */ 308 z_stream d_stream; /* decompression stream */
309 309
310 strcpy((char*)uncompr, "garbage"); 310 strcpy((char*)uncompr, "garbage");
311 311
312 d_stream.zalloc = (alloc_func)0; 312 d_stream.zalloc = (alloc_func)0;
313 d_stream.zfree = (free_func)0; 313 d_stream.zfree = (free_func)0;
314 d_stream.opaque = (voidpf)0; 314 d_stream.opaque = (voidpf)0;
315 315
316 d_stream.next_in = compr; 316 d_stream.next_in = compr;
317 d_stream.avail_in = (uInt)comprLen; 317 d_stream.avail_in = (uInt)comprLen;
318 318
319 err = inflateInit(&d_stream); 319 err = inflateInit(&d_stream);
320 CHECK_ERR(err, "inflateInit"); 320 CHECK_ERR(err, "inflateInit");
321 321
322 for (;;) { 322 for (;;) {
323 d_stream.next_out = uncompr; /* discard the output */ 323 d_stream.next_out = uncompr; /* discard the output */
324 d_stream.avail_out = (uInt)uncomprLen; 324 d_stream.avail_out = (uInt)uncomprLen;
325 err = inflate(&d_stream, Z_NO_FLUSH); 325 err = inflate(&d_stream, Z_NO_FLUSH);
326 if (err == Z_STREAM_END) break; 326 if (err == Z_STREAM_END) break;
327 CHECK_ERR(err, "large inflate"); 327 CHECK_ERR(err, "large inflate");
328 } 328 }
329 329
330 err = inflateEnd(&d_stream); 330 err = inflateEnd(&d_stream);
331 CHECK_ERR(err, "inflateEnd"); 331 CHECK_ERR(err, "inflateEnd");
332 332
333 if (d_stream.total_out != 2*uncomprLen + comprLen/2) { 333 if (d_stream.total_out != 2*uncomprLen + comprLen/2) {
334 fprintf(stderr, "bad large inflate: %ld\n", d_stream.total_out); 334 fprintf(stderr, "bad large inflate: %ld\n", d_stream.total_out);
335 exit(1); 335 exit(1);
336 } else { 336 } else {
337 printf("large_inflate(): OK\n"); 337 printf("large_inflate(): OK\n");
338 } 338 }
339} 339}
340 340
341/* =========================================================================== 341/* ===========================================================================
342 * Test deflate() with full flush 342 * Test deflate() with full flush
343 */ 343 */
344void test_flush(compr, comprLen) 344void test_flush(compr, comprLen)
345 Byte *compr; 345 Byte *compr;
346 uLong *comprLen; 346 uLong *comprLen;
347{ 347{
348 z_stream c_stream; /* compression stream */ 348 z_stream c_stream; /* compression stream */
349 int err; 349 int err;
350 uInt len = (uInt)strlen(hello)+1; 350 uInt len = (uInt)strlen(hello)+1;
351 351
352 c_stream.zalloc = (alloc_func)0; 352 c_stream.zalloc = (alloc_func)0;
353 c_stream.zfree = (free_func)0; 353 c_stream.zfree = (free_func)0;
354 c_stream.opaque = (voidpf)0; 354 c_stream.opaque = (voidpf)0;
355 355
356 err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION); 356 err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
357 CHECK_ERR(err, "deflateInit"); 357 CHECK_ERR(err, "deflateInit");
358 358
359 c_stream.next_in = (Bytef*)hello; 359 c_stream.next_in = (Bytef*)hello;
360 c_stream.next_out = compr; 360 c_stream.next_out = compr;
361 c_stream.avail_in = 3; 361 c_stream.avail_in = 3;
362 c_stream.avail_out = (uInt)*comprLen; 362 c_stream.avail_out = (uInt)*comprLen;
363 err = deflate(&c_stream, Z_FULL_FLUSH); 363 err = deflate(&c_stream, Z_FULL_FLUSH);
364 CHECK_ERR(err, "deflate"); 364 CHECK_ERR(err, "deflate");
365 365
366 compr[3]++; /* force an error in first compressed block */ 366 compr[3]++; /* force an error in first compressed block */
367 c_stream.avail_in = len - 3; 367 c_stream.avail_in = len - 3;
368 368
369 err = deflate(&c_stream, Z_FINISH); 369 err = deflate(&c_stream, Z_FINISH);
370 if (err != Z_STREAM_END) { 370 if (err != Z_STREAM_END) {
371 CHECK_ERR(err, "deflate"); 371 CHECK_ERR(err, "deflate");
372 } 372 }
373 err = deflateEnd(&c_stream); 373 err = deflateEnd(&c_stream);
374 CHECK_ERR(err, "deflateEnd"); 374 CHECK_ERR(err, "deflateEnd");
375 375
376 *comprLen = c_stream.total_out; 376 *comprLen = c_stream.total_out;
377} 377}
378 378
379/* =========================================================================== 379/* ===========================================================================
380 * Test inflateSync() 380 * Test inflateSync()
381 */ 381 */
382void test_sync(compr, comprLen, uncompr, uncomprLen) 382void test_sync(compr, comprLen, uncompr, uncomprLen)
383 Byte *compr, *uncompr; 383 Byte *compr, *uncompr;
384 uLong comprLen, uncomprLen; 384 uLong comprLen, uncomprLen;
385{ 385{
386 int err; 386 int err;
387 z_stream d_stream; /* decompression stream */ 387 z_stream d_stream; /* decompression stream */
388 388
389 strcpy((char*)uncompr, "garbage"); 389 strcpy((char*)uncompr, "garbage");
390 390
391 d_stream.zalloc = (alloc_func)0; 391 d_stream.zalloc = (alloc_func)0;
392 d_stream.zfree = (free_func)0; 392 d_stream.zfree = (free_func)0;
393 d_stream.opaque = (voidpf)0; 393 d_stream.opaque = (voidpf)0;
394 394
395 d_stream.next_in = compr; 395 d_stream.next_in = compr;
396 d_stream.avail_in = 2; /* just read the zlib header */ 396 d_stream.avail_in = 2; /* just read the zlib header */
397 397
398 err = inflateInit(&d_stream); 398 err = inflateInit(&d_stream);
399 CHECK_ERR(err, "inflateInit"); 399 CHECK_ERR(err, "inflateInit");
400 400
401 d_stream.next_out = uncompr; 401 d_stream.next_out = uncompr;
402 d_stream.avail_out = (uInt)uncomprLen; 402 d_stream.avail_out = (uInt)uncomprLen;
403 403
404 inflate(&d_stream, Z_NO_FLUSH); 404 inflate(&d_stream, Z_NO_FLUSH);
405 CHECK_ERR(err, "inflate"); 405 CHECK_ERR(err, "inflate");
406 406
407 d_stream.avail_in = (uInt)comprLen-2; /* read all compressed data */ 407 d_stream.avail_in = (uInt)comprLen-2; /* read all compressed data */
408 err = inflateSync(&d_stream); /* but skip the damaged part */ 408 err = inflateSync(&d_stream); /* but skip the damaged part */
409 CHECK_ERR(err, "inflateSync"); 409 CHECK_ERR(err, "inflateSync");
410 410
411 err = inflate(&d_stream, Z_FINISH); 411 err = inflate(&d_stream, Z_FINISH);
412 if (err != Z_DATA_ERROR) { 412 if (err != Z_DATA_ERROR) {
413 fprintf(stderr, "inflate should report DATA_ERROR\n"); 413 fprintf(stderr, "inflate should report DATA_ERROR\n");
414 /* Because of incorrect adler32 */ 414 /* Because of incorrect adler32 */
415 exit(1); 415 exit(1);
416 } 416 }
417 err = inflateEnd(&d_stream); 417 err = inflateEnd(&d_stream);
418 CHECK_ERR(err, "inflateEnd"); 418 CHECK_ERR(err, "inflateEnd");
419 419
420 printf("after inflateSync(): hel%s\n", (char *)uncompr); 420 printf("after inflateSync(): hel%s\n", (char *)uncompr);
421} 421}
422 422
423/* =========================================================================== 423/* ===========================================================================
424 * Test deflate() with preset dictionary 424 * Test deflate() with preset dictionary
425 */ 425 */
426void test_dict_deflate(compr, comprLen) 426void test_dict_deflate(compr, comprLen)
427 Byte *compr; 427 Byte *compr;
428 uLong comprLen; 428 uLong comprLen;
429{ 429{
430 z_stream c_stream; /* compression stream */ 430 z_stream c_stream; /* compression stream */
431 int err; 431 int err;
432 432
433 c_stream.zalloc = (alloc_func)0; 433 c_stream.zalloc = (alloc_func)0;
434 c_stream.zfree = (free_func)0; 434 c_stream.zfree = (free_func)0;
435 c_stream.opaque = (voidpf)0; 435 c_stream.opaque = (voidpf)0;
436 436
437 err = deflateInit(&c_stream, Z_BEST_COMPRESSION); 437 err = deflateInit(&c_stream, Z_BEST_COMPRESSION);
438 CHECK_ERR(err, "deflateInit"); 438 CHECK_ERR(err, "deflateInit");
439 439
440 err = deflateSetDictionary(&c_stream, 440 err = deflateSetDictionary(&c_stream,
441 (const Bytef*)dictionary, sizeof(dictionary)); 441 (const Bytef*)dictionary, sizeof(dictionary));
442 CHECK_ERR(err, "deflateSetDictionary"); 442 CHECK_ERR(err, "deflateSetDictionary");
443 443
444 dictId = c_stream.adler; 444 dictId = c_stream.adler;
445 c_stream.next_out = compr; 445 c_stream.next_out = compr;
446 c_stream.avail_out = (uInt)comprLen; 446 c_stream.avail_out = (uInt)comprLen;
447 447
448 c_stream.next_in = (Bytef*)hello; 448 c_stream.next_in = (Bytef*)hello;
449 c_stream.avail_in = (uInt)strlen(hello)+1; 449 c_stream.avail_in = (uInt)strlen(hello)+1;
450 450
451 err = deflate(&c_stream, Z_FINISH); 451 err = deflate(&c_stream, Z_FINISH);
452 if (err != Z_STREAM_END) { 452 if (err != Z_STREAM_END) {
453 fprintf(stderr, "deflate should report Z_STREAM_END\n"); 453 fprintf(stderr, "deflate should report Z_STREAM_END\n");
454 exit(1); 454 exit(1);
455 } 455 }
456 err = deflateEnd(&c_stream); 456 err = deflateEnd(&c_stream);
457 CHECK_ERR(err, "deflateEnd"); 457 CHECK_ERR(err, "deflateEnd");
458} 458}
459 459
460/* =========================================================================== 460/* ===========================================================================
461 * Test inflate() with a preset dictionary 461 * Test inflate() with a preset dictionary
462 */ 462 */
463void test_dict_inflate(compr, comprLen, uncompr, uncomprLen) 463void test_dict_inflate(compr, comprLen, uncompr, uncomprLen)
464 Byte *compr, *uncompr; 464 Byte *compr, *uncompr;
465 uLong comprLen, uncomprLen; 465 uLong comprLen, uncomprLen;
466{ 466{
467 int err; 467 int err;
468 z_stream d_stream; /* decompression stream */ 468 z_stream d_stream; /* decompression stream */
469 469
470 strcpy((char*)uncompr, "garbage"); 470 strcpy((char*)uncompr, "garbage");
471 471
472 d_stream.zalloc = (alloc_func)0; 472 d_stream.zalloc = (alloc_func)0;
473 d_stream.zfree = (free_func)0; 473 d_stream.zfree = (free_func)0;
474 d_stream.opaque = (voidpf)0; 474 d_stream.opaque = (voidpf)0;
475 475
476 d_stream.next_in = compr; 476 d_stream.next_in = compr;
477 d_stream.avail_in = (uInt)comprLen; 477 d_stream.avail_in = (uInt)comprLen;
478 478
479 err = inflateInit(&d_stream); 479 err = inflateInit(&d_stream);
480 CHECK_ERR(err, "inflateInit"); 480 CHECK_ERR(err, "inflateInit");
481 481
482 d_stream.next_out = uncompr; 482 d_stream.next_out = uncompr;
483 d_stream.avail_out = (uInt)uncomprLen; 483 d_stream.avail_out = (uInt)uncomprLen;
484 484
485 for (;;) { 485 for (;;) {
486 err = inflate(&d_stream, Z_NO_FLUSH); 486 err = inflate(&d_stream, Z_NO_FLUSH);
487 if (err == Z_STREAM_END) break; 487 if (err == Z_STREAM_END) break;
488 if (err == Z_NEED_DICT) { 488 if (err == Z_NEED_DICT) {
489 if (d_stream.adler != dictId) { 489 if (d_stream.adler != dictId) {
490 fprintf(stderr, "unexpected dictionary"); 490 fprintf(stderr, "unexpected dictionary");
491 exit(1); 491 exit(1);
492 } 492 }
493 err = inflateSetDictionary(&d_stream, (const Bytef*)dictionary, 493 err = inflateSetDictionary(&d_stream, (const Bytef*)dictionary,
494 sizeof(dictionary)); 494 sizeof(dictionary));
495 } 495 }
496 CHECK_ERR(err, "inflate with dict"); 496 CHECK_ERR(err, "inflate with dict");
497 } 497 }
498 498
499 err = inflateEnd(&d_stream); 499 err = inflateEnd(&d_stream);
500 CHECK_ERR(err, "inflateEnd"); 500 CHECK_ERR(err, "inflateEnd");
501 501
502 if (strcmp((char*)uncompr, hello)) { 502 if (strcmp((char*)uncompr, hello)) {
503 fprintf(stderr, "bad inflate with dict\n"); 503 fprintf(stderr, "bad inflate with dict\n");
504 exit(1); 504 exit(1);
505 } else { 505 } else {
506 printf("inflate with dictionary: %s\n", (char *)uncompr); 506 printf("inflate with dictionary: %s\n", (char *)uncompr);
507 } 507 }
508} 508}
509 509
510/* =========================================================================== 510/* ===========================================================================
511 * Usage: example [output.gz [input.gz]] 511 * Usage: example [output.gz [input.gz]]
512 */ 512 */
513 513
514int main(argc, argv) 514int main(argc, argv)
515 int argc; 515 int argc;
516 char *argv[]; 516 char *argv[];
517{ 517{
518 Byte *compr, *uncompr; 518 Byte *compr, *uncompr;
519 uLong comprLen = 10000*sizeof(int); /* don't overflow on MSDOS */ 519 uLong comprLen = 10000*sizeof(int); /* don't overflow on MSDOS */
520 uLong uncomprLen = comprLen; 520 uLong uncomprLen = comprLen;
521 static const char* myVersion = ZLIB_VERSION; 521 static const char* myVersion = ZLIB_VERSION;
522 522
523 if (zlibVersion()[0] != myVersion[0]) { 523 if (zlibVersion()[0] != myVersion[0]) {
524 fprintf(stderr, "incompatible zlib version\n"); 524 fprintf(stderr, "incompatible zlib version\n");
525 exit(1); 525 exit(1);
526 526
527 } else if (strcmp(zlibVersion(), ZLIB_VERSION) != 0) { 527 } else if (strcmp(zlibVersion(), ZLIB_VERSION) != 0) {
528 fprintf(stderr, "warning: different zlib version\n"); 528 fprintf(stderr, "warning: different zlib version\n");
529 } 529 }
530 530
531 printf("zlib version %s = 0x%04x, compile flags = 0x%lx\n", 531 printf("zlib version %s = 0x%04x, compile flags = 0x%lx\n",
532 ZLIB_VERSION, ZLIB_VERNUM, zlibCompileFlags()); 532 ZLIB_VERSION, ZLIB_VERNUM, zlibCompileFlags());
533 533
534 compr = (Byte*)calloc((uInt)comprLen, 1); 534 compr = (Byte*)calloc((uInt)comprLen, 1);
535 uncompr = (Byte*)calloc((uInt)uncomprLen, 1); 535 uncompr = (Byte*)calloc((uInt)uncomprLen, 1);
536 /* compr and uncompr are cleared to avoid reading uninitialized 536 /* compr and uncompr are cleared to avoid reading uninitialized
537 * data and to ensure that uncompr compresses well. 537 * data and to ensure that uncompr compresses well.
538 */ 538 */
539 if (compr == Z_NULL || uncompr == Z_NULL) { 539 if (compr == Z_NULL || uncompr == Z_NULL) {
540 printf("out of memory\n"); 540 printf("out of memory\n");
541 exit(1); 541 exit(1);
542 } 542 }
543 test_compress(compr, comprLen, uncompr, uncomprLen); 543 test_compress(compr, comprLen, uncompr, uncomprLen);
544 544
545 test_gzio((argc > 1 ? argv[1] : TESTFILE), 545 test_gzio((argc > 1 ? argv[1] : TESTFILE),
546 uncompr, uncomprLen); 546 uncompr, uncomprLen);
547 547
548 test_deflate(compr, comprLen); 548 test_deflate(compr, comprLen);
549 test_inflate(compr, comprLen, uncompr, uncomprLen); 549 test_inflate(compr, comprLen, uncompr, uncomprLen);
550 550
551 test_large_deflate(compr, comprLen, uncompr, uncomprLen); 551 test_large_deflate(compr, comprLen, uncompr, uncomprLen);
552 test_large_inflate(compr, comprLen, uncompr, uncomprLen); 552 test_large_inflate(compr, comprLen, uncompr, uncomprLen);
553 553
554 test_flush(compr, &comprLen); 554 test_flush(compr, &comprLen);
555 test_sync(compr, comprLen, uncompr, uncomprLen); 555 test_sync(compr, comprLen, uncompr, uncomprLen);
556 comprLen = uncomprLen; 556 comprLen = uncomprLen;
557 557
558 test_dict_deflate(compr, comprLen); 558 test_dict_deflate(compr, comprLen);
559 test_dict_inflate(compr, comprLen, uncompr, uncomprLen); 559 test_dict_inflate(compr, comprLen, uncompr, uncomprLen);
560 560
561 free(compr); 561 free(compr);
562 free(uncompr); 562 free(uncompr);
563 563
564 return 0; 564 return 0;
565} 565}