Python code coverage for Modules/zlib/example.c

#	count	content
1	n/a	/* example.c -- usage example of the zlib compression library
2	n/a	* Copyright (C) 1995-2006, 2011 Jean-loup Gailly.
3	n/a	* For conditions of distribution and use, see copyright notice in zlib.h
4	n/a	*/
5	n/a
6	n/a	/* @(#) $Id$ */
7	n/a
8	n/a	#include "zlib.h"
9	n/a	#include <stdio.h>
10	n/a
11	n/a	#ifdef STDC
12	n/a	# include <string.h>
13	n/a	# include <stdlib.h>
14	n/a	#endif
15	n/a
16	n/a	#if defined(VMS) \|\| defined(RISCOS)
17	n/a	# define TESTFILE "foo-gz"
18	n/a	#else
19	n/a	# define TESTFILE "foo.gz"
20	n/a	#endif
21	n/a
22	n/a	#define CHECK_ERR(err, msg) { \
23	n/a	if (err != Z_OK) { \
24	n/a	fprintf(stderr, "%s error: %d\n", msg, err); \
25	n/a	exit(1); \
26	n/a	} \
27	n/a	}
28	n/a
29	n/a	z_const char hello[] = "hello, hello!";
30	n/a	/* "hello world" would be more standard, but the repeated "hello"
31	n/a	* stresses the compression code better, sorry...
32	n/a	*/
33	n/a
34	n/a	const char dictionary[] = "hello";
35	n/a	uLong dictId; /* Adler32 value of the dictionary */
36	n/a
37	n/a	void test_deflate OF((Byte *compr, uLong comprLen));
38	n/a	void test_inflate OF((Byte *compr, uLong comprLen,
39	n/a	Byte *uncompr, uLong uncomprLen));
40	n/a	void test_large_deflate OF((Byte *compr, uLong comprLen,
41	n/a	Byte *uncompr, uLong uncomprLen));
42	n/a	void test_large_inflate OF((Byte *compr, uLong comprLen,
43	n/a	Byte *uncompr, uLong uncomprLen));
44	n/a	void test_flush OF((Byte compr, uLong comprLen));
45	n/a	void test_sync OF((Byte *compr, uLong comprLen,
46	n/a	Byte *uncompr, uLong uncomprLen));
47	n/a	void test_dict_deflate OF((Byte *compr, uLong comprLen));
48	n/a	void test_dict_inflate OF((Byte *compr, uLong comprLen,
49	n/a	Byte *uncompr, uLong uncomprLen));
50	n/a	int main OF((int argc, char *argv[]));
51	n/a
52	n/a
53	n/a	#ifdef Z_SOLO
54	n/a
55	n/a	void myalloc OF((void , unsigned, unsigned));
56	n/a	void myfree OF((void , void ));
57	n/a
58	n/a	void *myalloc(q, n, m)
59	n/a	void *q;
60	n/a	unsigned n, m;
61	n/a	{
62	n/a	q = Z_NULL;
63	n/a	return calloc(n, m);
64	n/a	}
65	n/a
66	n/a	void myfree(void q, void p)
67	n/a	{
68	n/a	q = Z_NULL;
69	n/a	free(p);
70	n/a	}
71	n/a
72	n/a	static alloc_func zalloc = myalloc;
73	n/a	static free_func zfree = myfree;
74	n/a
75	n/a	#else /* !Z_SOLO */
76	n/a
77	n/a	static alloc_func zalloc = (alloc_func)0;
78	n/a	static free_func zfree = (free_func)0;
79	n/a
80	n/a	void test_compress OF((Byte *compr, uLong comprLen,
81	n/a	Byte *uncompr, uLong uncomprLen));
82	n/a	void test_gzio OF((const char *fname,
83	n/a	Byte *uncompr, uLong uncomprLen));
84	n/a
85	n/a	/* ===========================================================================
86	n/a	* Test compress() and uncompress()
87	n/a	*/
88	n/a	void test_compress(compr, comprLen, uncompr, uncomprLen)
89	n/a	Byte compr, uncompr;
90	n/a	uLong comprLen, uncomprLen;
91	n/a	{
92	n/a	int err;
93	n/a	uLong len = (uLong)strlen(hello)+1;
94	n/a
95	n/a	err = compress(compr, &comprLen, (const Bytef*)hello, len);
96	n/a	CHECK_ERR(err, "compress");
97	n/a
98	n/a	strcpy((char*)uncompr, "garbage");
99	n/a
100	n/a	err = uncompress(uncompr, &uncomprLen, compr, comprLen);
101	n/a	CHECK_ERR(err, "uncompress");
102	n/a
103	n/a	if (strcmp((char*)uncompr, hello)) {
104	n/a	fprintf(stderr, "bad uncompress\n");
105	n/a	exit(1);
106	n/a	} else {
107	n/a	printf("uncompress(): %s\n", (char *)uncompr);
108	n/a	}
109	n/a	}
110	n/a
111	n/a	/* ===========================================================================
112	n/a	* Test read/write of .gz files
113	n/a	*/
114	n/a	void test_gzio(fname, uncompr, uncomprLen)
115	n/a	const char fname; / compressed file name */
116	n/a	Byte *uncompr;
117	n/a	uLong uncomprLen;
118	n/a	{
119	n/a	#ifdef NO_GZCOMPRESS
120	n/a	fprintf(stderr, "NO_GZCOMPRESS -- gz* functions cannot compress\n");
121	n/a	#else
122	n/a	int err;
123	n/a	int len = (int)strlen(hello)+1;
124	n/a	gzFile file;
125	n/a	z_off_t pos;
126	n/a
127	n/a	file = gzopen(fname, "wb");
128	n/a	if (file == NULL) {
129	n/a	fprintf(stderr, "gzopen error\n");
130	n/a	exit(1);
131	n/a	}
132	n/a	gzputc(file, 'h');
133	n/a	if (gzputs(file, "ello") != 4) {
134	n/a	fprintf(stderr, "gzputs err: %s\n", gzerror(file, &err));
135	n/a	exit(1);
136	n/a	}
137	n/a	if (gzprintf(file, ", %s!", "hello") != 8) {
138	n/a	fprintf(stderr, "gzprintf err: %s\n", gzerror(file, &err));
139	n/a	exit(1);
140	n/a	}
141	n/a	gzseek(file, 1L, SEEK_CUR); /* add one zero byte */
142	n/a	gzclose(file);
143	n/a
144	n/a	file = gzopen(fname, "rb");
145	n/a	if (file == NULL) {
146	n/a	fprintf(stderr, "gzopen error\n");
147	n/a	exit(1);
148	n/a	}
149	n/a	strcpy((char*)uncompr, "garbage");
150	n/a
151	n/a	if (gzread(file, uncompr, (unsigned)uncomprLen) != len) {
152	n/a	fprintf(stderr, "gzread err: %s\n", gzerror(file, &err));
153	n/a	exit(1);
154	n/a	}
155	n/a	if (strcmp((char*)uncompr, hello)) {
156	n/a	fprintf(stderr, "bad gzread: %s\n", (char*)uncompr);
157	n/a	exit(1);
158	n/a	} else {
159	n/a	printf("gzread(): %s\n", (char*)uncompr);
160	n/a	}
161	n/a
162	n/a	pos = gzseek(file, -8L, SEEK_CUR);
163	n/a	if (pos != 6 \|\| gztell(file) != pos) {
164	n/a	fprintf(stderr, "gzseek error, pos=%ld, gztell=%ld\n",
165	n/a	(long)pos, (long)gztell(file));
166	n/a	exit(1);
167	n/a	}
168	n/a
169	n/a	if (gzgetc(file) != ' ') {
170	n/a	fprintf(stderr, "gzgetc error\n");
171	n/a	exit(1);
172	n/a	}
173	n/a
174	n/a	if (gzungetc(' ', file) != ' ') {
175	n/a	fprintf(stderr, "gzungetc error\n");
176	n/a	exit(1);
177	n/a	}
178	n/a
179	n/a	gzgets(file, (char*)uncompr, (int)uncomprLen);
180	n/a	if (strlen((char)uncompr) != 7) { / " hello!" */
181	n/a	fprintf(stderr, "gzgets err after gzseek: %s\n", gzerror(file, &err));
182	n/a	exit(1);
183	n/a	}
184	n/a	if (strcmp((char*)uncompr, hello + 6)) {
185	n/a	fprintf(stderr, "bad gzgets after gzseek\n");
186	n/a	exit(1);
187	n/a	} else {
188	n/a	printf("gzgets() after gzseek: %s\n", (char*)uncompr);
189	n/a	}
190	n/a
191	n/a	gzclose(file);
192	n/a	#endif
193	n/a	}
194	n/a
195	n/a	#endif /* Z_SOLO */
196	n/a
197	n/a	/* ===========================================================================
198	n/a	* Test deflate() with small buffers
199	n/a	*/
200	n/a	void test_deflate(compr, comprLen)
201	n/a	Byte *compr;
202	n/a	uLong comprLen;
203	n/a	{
204	n/a	z_stream c_stream; /* compression stream */
205	n/a	int err;
206	n/a	uLong len = (uLong)strlen(hello)+1;
207	n/a
208	n/a	c_stream.zalloc = zalloc;
209	n/a	c_stream.zfree = zfree;
210	n/a	c_stream.opaque = (voidpf)0;
211	n/a
212	n/a	err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
213	n/a	CHECK_ERR(err, "deflateInit");
214	n/a
215	n/a	c_stream.next_in = (z_const unsigned char *)hello;
216	n/a	c_stream.next_out = compr;
217	n/a
218	n/a	while (c_stream.total_in != len && c_stream.total_out < comprLen) {
219	n/a	c_stream.avail_in = c_stream.avail_out = 1; /* force small buffers */
220	n/a	err = deflate(&c_stream, Z_NO_FLUSH);
221	n/a	CHECK_ERR(err, "deflate");
222	n/a	}
223	n/a	/* Finish the stream, still forcing small buffers: */
224	n/a	for (;;) {
225	n/a	c_stream.avail_out = 1;
226	n/a	err = deflate(&c_stream, Z_FINISH);
227	n/a	if (err == Z_STREAM_END) break;
228	n/a	CHECK_ERR(err, "deflate");
229	n/a	}
230	n/a
231	n/a	err = deflateEnd(&c_stream);
232	n/a	CHECK_ERR(err, "deflateEnd");
233	n/a	}
234	n/a
235	n/a	/* ===========================================================================
236	n/a	* Test inflate() with small buffers
237	n/a	*/
238	n/a	void test_inflate(compr, comprLen, uncompr, uncomprLen)
239	n/a	Byte compr, uncompr;
240	n/a	uLong comprLen, uncomprLen;
241	n/a	{
242	n/a	int err;
243	n/a	z_stream d_stream; /* decompression stream */
244	n/a
245	n/a	strcpy((char*)uncompr, "garbage");
246	n/a
247	n/a	d_stream.zalloc = zalloc;
248	n/a	d_stream.zfree = zfree;
249	n/a	d_stream.opaque = (voidpf)0;
250	n/a
251	n/a	d_stream.next_in = compr;
252	n/a	d_stream.avail_in = 0;
253	n/a	d_stream.next_out = uncompr;
254	n/a
255	n/a	err = inflateInit(&d_stream);
256	n/a	CHECK_ERR(err, "inflateInit");
257	n/a
258	n/a	while (d_stream.total_out < uncomprLen && d_stream.total_in < comprLen) {
259	n/a	d_stream.avail_in = d_stream.avail_out = 1; /* force small buffers */
260	n/a	err = inflate(&d_stream, Z_NO_FLUSH);
261	n/a	if (err == Z_STREAM_END) break;
262	n/a	CHECK_ERR(err, "inflate");
263	n/a	}
264	n/a
265	n/a	err = inflateEnd(&d_stream);
266	n/a	CHECK_ERR(err, "inflateEnd");
267	n/a
268	n/a	if (strcmp((char*)uncompr, hello)) {
269	n/a	fprintf(stderr, "bad inflate\n");
270	n/a	exit(1);
271	n/a	} else {
272	n/a	printf("inflate(): %s\n", (char *)uncompr);
273	n/a	}
274	n/a	}
275	n/a
276	n/a	/* ===========================================================================
277	n/a	* Test deflate() with large buffers and dynamic change of compression level
278	n/a	*/
279	n/a	void test_large_deflate(compr, comprLen, uncompr, uncomprLen)
280	n/a	Byte compr, uncompr;
281	n/a	uLong comprLen, uncomprLen;
282	n/a	{
283	n/a	z_stream c_stream; /* compression stream */
284	n/a	int err;
285	n/a
286	n/a	c_stream.zalloc = zalloc;
287	n/a	c_stream.zfree = zfree;
288	n/a	c_stream.opaque = (voidpf)0;
289	n/a
290	n/a	err = deflateInit(&c_stream, Z_BEST_SPEED);
291	n/a	CHECK_ERR(err, "deflateInit");
292	n/a
293	n/a	c_stream.next_out = compr;
294	n/a	c_stream.avail_out = (uInt)comprLen;
295	n/a
296	n/a	/* At this point, uncompr is still mostly zeroes, so it should compress
297	n/a	* very well:
298	n/a	*/
299	n/a	c_stream.next_in = uncompr;
300	n/a	c_stream.avail_in = (uInt)uncomprLen;
301	n/a	err = deflate(&c_stream, Z_NO_FLUSH);
302	n/a	CHECK_ERR(err, "deflate");
303	n/a	if (c_stream.avail_in != 0) {
304	n/a	fprintf(stderr, "deflate not greedy\n");
305	n/a	exit(1);
306	n/a	}
307	n/a
308	n/a	/* Feed in already compressed data and switch to no compression: */
309	n/a	deflateParams(&c_stream, Z_NO_COMPRESSION, Z_DEFAULT_STRATEGY);
310	n/a	c_stream.next_in = compr;
311	n/a	c_stream.avail_in = (uInt)comprLen/2;
312	n/a	err = deflate(&c_stream, Z_NO_FLUSH);
313	n/a	CHECK_ERR(err, "deflate");
314	n/a
315	n/a	/* Switch back to compressing mode: */
316	n/a	deflateParams(&c_stream, Z_BEST_COMPRESSION, Z_FILTERED);
317	n/a	c_stream.next_in = uncompr;
318	n/a	c_stream.avail_in = (uInt)uncomprLen;
319	n/a	err = deflate(&c_stream, Z_NO_FLUSH);
320	n/a	CHECK_ERR(err, "deflate");
321	n/a
322	n/a	err = deflate(&c_stream, Z_FINISH);
323	n/a	if (err != Z_STREAM_END) {
324	n/a	fprintf(stderr, "deflate should report Z_STREAM_END\n");
325	n/a	exit(1);
326	n/a	}
327	n/a	err = deflateEnd(&c_stream);
328	n/a	CHECK_ERR(err, "deflateEnd");
329	n/a	}
330	n/a
331	n/a	/* ===========================================================================
332	n/a	* Test inflate() with large buffers
333	n/a	*/
334	n/a	void test_large_inflate(compr, comprLen, uncompr, uncomprLen)
335	n/a	Byte compr, uncompr;
336	n/a	uLong comprLen, uncomprLen;
337	n/a	{
338	n/a	int err;
339	n/a	z_stream d_stream; /* decompression stream */
340	n/a
341	n/a	strcpy((char*)uncompr, "garbage");
342	n/a
343	n/a	d_stream.zalloc = zalloc;
344	n/a	d_stream.zfree = zfree;
345	n/a	d_stream.opaque = (voidpf)0;
346	n/a
347	n/a	d_stream.next_in = compr;
348	n/a	d_stream.avail_in = (uInt)comprLen;
349	n/a
350	n/a	err = inflateInit(&d_stream);
351	n/a	CHECK_ERR(err, "inflateInit");
352	n/a
353	n/a	for (;;) {
354	n/a	d_stream.next_out = uncompr; /* discard the output */
355	n/a	d_stream.avail_out = (uInt)uncomprLen;
356	n/a	err = inflate(&d_stream, Z_NO_FLUSH);
357	n/a	if (err == Z_STREAM_END) break;
358	n/a	CHECK_ERR(err, "large inflate");
359	n/a	}
360	n/a
361	n/a	err = inflateEnd(&d_stream);
362	n/a	CHECK_ERR(err, "inflateEnd");
363	n/a
364	n/a	if (d_stream.total_out != 2*uncomprLen + comprLen/2) {
365	n/a	fprintf(stderr, "bad large inflate: %ld\n", d_stream.total_out);
366	n/a	exit(1);
367	n/a	} else {
368	n/a	printf("large_inflate(): OK\n");
369	n/a	}
370	n/a	}
371	n/a
372	n/a	/* ===========================================================================
373	n/a	* Test deflate() with full flush
374	n/a	*/
375	n/a	void test_flush(compr, comprLen)
376	n/a	Byte *compr;
377	n/a	uLong *comprLen;
378	n/a	{
379	n/a	z_stream c_stream; /* compression stream */
380	n/a	int err;
381	n/a	uInt len = (uInt)strlen(hello)+1;
382	n/a
383	n/a	c_stream.zalloc = zalloc;
384	n/a	c_stream.zfree = zfree;
385	n/a	c_stream.opaque = (voidpf)0;
386	n/a
387	n/a	err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
388	n/a	CHECK_ERR(err, "deflateInit");
389	n/a
390	n/a	c_stream.next_in = (z_const unsigned char *)hello;
391	n/a	c_stream.next_out = compr;
392	n/a	c_stream.avail_in = 3;
393	n/a	c_stream.avail_out = (uInt)*comprLen;
394	n/a	err = deflate(&c_stream, Z_FULL_FLUSH);
395	n/a	CHECK_ERR(err, "deflate");
396	n/a
397	n/a	compr[3]++; /* force an error in first compressed block */
398	n/a	c_stream.avail_in = len - 3;
399	n/a
400	n/a	err = deflate(&c_stream, Z_FINISH);
401	n/a	if (err != Z_STREAM_END) {
402	n/a	CHECK_ERR(err, "deflate");
403	n/a	}
404	n/a	err = deflateEnd(&c_stream);
405	n/a	CHECK_ERR(err, "deflateEnd");
406	n/a
407	n/a	*comprLen = c_stream.total_out;
408	n/a	}
409	n/a
410	n/a	/* ===========================================================================
411	n/a	* Test inflateSync()
412	n/a	*/
413	n/a	void test_sync(compr, comprLen, uncompr, uncomprLen)
414	n/a	Byte compr, uncompr;
415	n/a	uLong comprLen, uncomprLen;
416	n/a	{
417	n/a	int err;
418	n/a	z_stream d_stream; /* decompression stream */
419	n/a
420	n/a	strcpy((char*)uncompr, "garbage");
421	n/a
422	n/a	d_stream.zalloc = zalloc;
423	n/a	d_stream.zfree = zfree;
424	n/a	d_stream.opaque = (voidpf)0;
425	n/a
426	n/a	d_stream.next_in = compr;
427	n/a	d_stream.avail_in = 2; /* just read the zlib header */
428	n/a
429	n/a	err = inflateInit(&d_stream);
430	n/a	CHECK_ERR(err, "inflateInit");
431	n/a
432	n/a	d_stream.next_out = uncompr;
433	n/a	d_stream.avail_out = (uInt)uncomprLen;
434	n/a
435	n/a	inflate(&d_stream, Z_NO_FLUSH);
436	n/a	CHECK_ERR(err, "inflate");
437	n/a
438	n/a	d_stream.avail_in = (uInt)comprLen-2; /* read all compressed data */
439	n/a	err = inflateSync(&d_stream); /* but skip the damaged part */
440	n/a	CHECK_ERR(err, "inflateSync");
441	n/a
442	n/a	err = inflate(&d_stream, Z_FINISH);
443	n/a	if (err != Z_DATA_ERROR) {
444	n/a	fprintf(stderr, "inflate should report DATA_ERROR\n");
445	n/a	/* Because of incorrect adler32 */
446	n/a	exit(1);
447	n/a	}
448	n/a	err = inflateEnd(&d_stream);
449	n/a	CHECK_ERR(err, "inflateEnd");
450	n/a
451	n/a	printf("after inflateSync(): hel%s\n", (char *)uncompr);
452	n/a	}
453	n/a
454	n/a	/* ===========================================================================
455	n/a	* Test deflate() with preset dictionary
456	n/a	*/
457	n/a	void test_dict_deflate(compr, comprLen)
458	n/a	Byte *compr;
459	n/a	uLong comprLen;
460	n/a	{
461	n/a	z_stream c_stream; /* compression stream */
462	n/a	int err;
463	n/a
464	n/a	c_stream.zalloc = zalloc;
465	n/a	c_stream.zfree = zfree;
466	n/a	c_stream.opaque = (voidpf)0;
467	n/a
468	n/a	err = deflateInit(&c_stream, Z_BEST_COMPRESSION);
469	n/a	CHECK_ERR(err, "deflateInit");
470	n/a
471	n/a	err = deflateSetDictionary(&c_stream,
472	n/a	(const Bytef*)dictionary, (int)sizeof(dictionary));
473	n/a	CHECK_ERR(err, "deflateSetDictionary");
474	n/a
475	n/a	dictId = c_stream.adler;
476	n/a	c_stream.next_out = compr;
477	n/a	c_stream.avail_out = (uInt)comprLen;
478	n/a
479	n/a	c_stream.next_in = (z_const unsigned char *)hello;
480	n/a	c_stream.avail_in = (uInt)strlen(hello)+1;
481	n/a
482	n/a	err = deflate(&c_stream, Z_FINISH);
483	n/a	if (err != Z_STREAM_END) {
484	n/a	fprintf(stderr, "deflate should report Z_STREAM_END\n");
485	n/a	exit(1);
486	n/a	}
487	n/a	err = deflateEnd(&c_stream);
488	n/a	CHECK_ERR(err, "deflateEnd");
489	n/a	}
490	n/a
491	n/a	/* ===========================================================================
492	n/a	* Test inflate() with a preset dictionary
493	n/a	*/
494	n/a	void test_dict_inflate(compr, comprLen, uncompr, uncomprLen)
495	n/a	Byte compr, uncompr;
496	n/a	uLong comprLen, uncomprLen;
497	n/a	{
498	n/a	int err;
499	n/a	z_stream d_stream; /* decompression stream */
500	n/a
501	n/a	strcpy((char*)uncompr, "garbage");
502	n/a
503	n/a	d_stream.zalloc = zalloc;
504	n/a	d_stream.zfree = zfree;
505	n/a	d_stream.opaque = (voidpf)0;
506	n/a
507	n/a	d_stream.next_in = compr;
508	n/a	d_stream.avail_in = (uInt)comprLen;
509	n/a
510	n/a	err = inflateInit(&d_stream);
511	n/a	CHECK_ERR(err, "inflateInit");
512	n/a
513	n/a	d_stream.next_out = uncompr;
514	n/a	d_stream.avail_out = (uInt)uncomprLen;
515	n/a
516	n/a	for (;;) {
517	n/a	err = inflate(&d_stream, Z_NO_FLUSH);
518	n/a	if (err == Z_STREAM_END) break;
519	n/a	if (err == Z_NEED_DICT) {
520	n/a	if (d_stream.adler != dictId) {
521	n/a	fprintf(stderr, "unexpected dictionary");
522	n/a	exit(1);
523	n/a	}
524	n/a	err = inflateSetDictionary(&d_stream, (const Bytef*)dictionary,
525	n/a	(int)sizeof(dictionary));
526	n/a	}
527	n/a	CHECK_ERR(err, "inflate with dict");
528	n/a	}
529	n/a
530	n/a	err = inflateEnd(&d_stream);
531	n/a	CHECK_ERR(err, "inflateEnd");
532	n/a
533	n/a	if (strcmp((char*)uncompr, hello)) {
534	n/a	fprintf(stderr, "bad inflate with dict\n");
535	n/a	exit(1);
536	n/a	} else {
537	n/a	printf("inflate with dictionary: %s\n", (char *)uncompr);
538	n/a	}
539	n/a	}
540	n/a
541	n/a	/* ===========================================================================
542	n/a	* Usage: example [output.gz [input.gz]]
543	n/a	*/
544	n/a
545	n/a	int main(argc, argv)
546	n/a	int argc;
547	n/a	char *argv[];
548	n/a	{
549	n/a	Byte compr, uncompr;
550	n/a	uLong comprLen = 10000sizeof(int); / don't overflow on MSDOS */
551	n/a	uLong uncomprLen = comprLen;
552	n/a	static const char* myVersion = ZLIB_VERSION;
553	n/a
554	n/a	if (zlibVersion()[0] != myVersion[0]) {
555	n/a	fprintf(stderr, "incompatible zlib version\n");
556	n/a	exit(1);
557	n/a
558	n/a	} else if (strcmp(zlibVersion(), ZLIB_VERSION) != 0) {
559	n/a	fprintf(stderr, "warning: different zlib version\n");
560	n/a	}
561	n/a
562	n/a	printf("zlib version %s = 0x%04x, compile flags = 0x%lx\n",
563	n/a	ZLIB_VERSION, ZLIB_VERNUM, zlibCompileFlags());
564	n/a
565	n/a	compr = (Byte*)calloc((uInt)comprLen, 1);
566	n/a	uncompr = (Byte*)calloc((uInt)uncomprLen, 1);
567	n/a	/* compr and uncompr are cleared to avoid reading uninitialized
568	n/a	* data and to ensure that uncompr compresses well.
569	n/a	*/
570	n/a	if (compr == Z_NULL \|\| uncompr == Z_NULL) {
571	n/a	printf("out of memory\n");
572	n/a	exit(1);
573	n/a	}
574	n/a
575	n/a	#ifdef Z_SOLO
576	n/a	argc = strlen(argv[0]);
577	n/a	#else
578	n/a	test_compress(compr, comprLen, uncompr, uncomprLen);
579	n/a
580	n/a	test_gzio((argc > 1 ? argv[1] : TESTFILE),
581	n/a	uncompr, uncomprLen);
582	n/a	#endif
583	n/a
584	n/a	test_deflate(compr, comprLen);
585	n/a	test_inflate(compr, comprLen, uncompr, uncomprLen);
586	n/a
587	n/a	test_large_deflate(compr, comprLen, uncompr, uncomprLen);
588	n/a	test_large_inflate(compr, comprLen, uncompr, uncomprLen);
589	n/a
590	n/a	test_flush(compr, &comprLen);
591	n/a	test_sync(compr, comprLen, uncompr, uncomprLen);
592	n/a	comprLen = uncomprLen;
593	n/a
594	n/a	test_dict_deflate(compr, comprLen);
595	n/a	test_dict_inflate(compr, comprLen, uncompr, uncomprLen);
596	n/a
597	n/a	free(compr);
598	n/a	free(uncompr);
599	n/a
600	n/a	return 0;
601	n/a	}