mirror of
https://github.com/GerbilSoft/zlib-ng.git
synced 2025-06-18 11:35:35 -04:00
Use helper function for printing error and exiting in example.
This commit is contained in:
Nathan Moinvaziri
Hans Kristian Rosbach
parent
4deaf27124
commit
92107a92d3
311
test/example.c
311
test/example.c
@ -17,16 +17,10 @@
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#include <stdlib.h>
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#include <inttypes.h>
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#include <stdint.h>
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#include <stdarg.h>
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#define TESTFILE "foo.gz"
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#define CHECK_ERR(err, msg) { \
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if (err != Z_OK) { \
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fprintf(stderr, "%s error: %d\n", msg, err); \
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exit(1); \
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} \
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}
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static const char hello[] = "hello, hello!";
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/* "hello world" would be more standard, but the repeated "hello"
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* stresses the compression code better, sorry...
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@ -52,6 +46,24 @@ int main (int argc, char *argv[]);
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static alloc_func zalloc = NULL;
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static free_func zfree = NULL;
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/* ===========================================================================
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* Display error message and exit
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*/
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void error(const char *format, ...) {
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va_list va;
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va_start(va, format);
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vfprintf(stderr, format, va);
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va_end(va);
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exit(1);
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}
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#define CHECK_ERR(err, msg) { \
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if (err != Z_OK) \
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error("%s error: %d\n", msg, err); \
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}
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/* ===========================================================================
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* Test compress() and uncompress()
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*/
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@ -67,12 +79,10 @@ void test_compress(unsigned char *compr, z_size_t comprLen, unsigned char *uncom
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err = PREFIX(uncompress)(uncompr, &uncomprLen, compr, comprLen);
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CHECK_ERR(err, "uncompress");
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if (strcmp((char*)uncompr, hello)) {
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fprintf(stderr, "bad uncompress\n");
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exit(1);
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} else {
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if (strcmp((char*)uncompr, hello))
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error("bad uncompress\n");
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else
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printf("uncompress(): %s\n", (char *)uncompr);
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}
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}
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/* ===========================================================================
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@ -91,144 +101,95 @@ void test_gzio(const char *fname, unsigned char *uncompr, z_size_t uncomprLen) {
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/* Write gz file with test data */
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file = PREFIX(gzopen)(fname, "wb");
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if (file == NULL) {
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fprintf(stderr, "gzopen error\n");
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exit(1);
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}
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if (file == NULL)
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error("gzopen error\n");
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/* Write hello, hello! using gzputs and gzprintf */
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PREFIX(gzputc)(file, 'h');
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if (PREFIX(gzputs)(file, "ello") != 4) {
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fprintf(stderr, "gzputs err: %s\n", PREFIX(gzerror)(file, &err));
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exit(1);
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}
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if (PREFIX(gzprintf)(file, ", %s!", "hello") != 8) {
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fprintf(stderr, "gzprintf err: %s\n", PREFIX(gzerror)(file, &err));
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exit(1);
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}
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if (PREFIX(gzputs)(file, "ello") != 4)
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error("gzputs err: %s\n", PREFIX(gzerror)(file, &err));
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if (PREFIX(gzprintf)(file, ", %s!", "hello") != 8)
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error("gzprintf err: %s\n", PREFIX(gzerror)(file, &err));
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/* Write string null-teriminator using gzseek */
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if (PREFIX(gzseek)(file, 1L, SEEK_CUR) < 0)
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{
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fprintf(stderr, "gzseek error, gztell=%ld\n", (long)PREFIX(gztell)(file));
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exit(1);
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}
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error("gzseek error, gztell=%ld\n", (long)PREFIX(gztell)(file));
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/* Write hello, hello! using gzfwrite using best compression level */
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if (PREFIX(gzsetparams)(file, Z_BEST_COMPRESSION, Z_DEFAULT_STRATEGY) != Z_OK) {
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fprintf(stderr, "gzsetparams err: %s\n", PREFIX(gzerror)(file, &err));
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exit(1);
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}
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if (PREFIX(gzfwrite)(hello, len, 1, file) == 0) {
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fprintf(stderr, "gzfwrite err: %s\n", PREFIX(gzerror)(file, &err));
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exit(1);
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}
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if (PREFIX(gzsetparams)(file, Z_BEST_COMPRESSION, Z_DEFAULT_STRATEGY) != Z_OK)
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error("gzsetparams err: %s\n", PREFIX(gzerror)(file, &err));
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if (PREFIX(gzfwrite)(hello, len, 1, file) == 0)
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error("gzfwrite err: %s\n", PREFIX(gzerror)(file, &err));
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/* Flush compressed bytes to file */
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if (PREFIX(gzflush)(file, Z_SYNC_FLUSH) != Z_OK) {
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fprintf(stderr, "gzflush err: %s\n", PREFIX(gzerror)(file, &err));
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exit(1);
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}
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if (PREFIX(gzflush)(file, Z_SYNC_FLUSH) != Z_OK)
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error("gzflush err: %s\n", PREFIX(gzerror)(file, &err));
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comprLen = PREFIX(gzoffset)(file);
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if (comprLen <= 0) {
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fprintf(stderr, "gzoffset err: %s\n", PREFIX(gzerror)(file, &err));
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exit(1);
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}
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if (comprLen <= 0)
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error("gzoffset err: %s\n", PREFIX(gzerror)(file, &err));
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PREFIX(gzclose)(file);
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/* Open gz file we previously wrote */
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file = PREFIX(gzopen)(fname, "rb");
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if (file == NULL) {
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fprintf(stderr, "gzopen error\n");
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exit(1);
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}
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if (file == NULL)
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error("gzopen error\n");
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/* Read uncompressed data - hello, hello! string twice */
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strcpy((char*)uncompr, "garbages");
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if (PREFIX(gzread)(file, uncompr, (unsigned)uncomprLen) != (int)(len + len)) {
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fprintf(stderr, "gzread err: %s\n", PREFIX(gzerror)(file, &err));
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exit(1);
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}
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if (strcmp((char*)uncompr, hello)) {
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fprintf(stderr, "bad gzread: %s\n", (char*)uncompr);
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exit(1);
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} else {
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if (PREFIX(gzread)(file, uncompr, (unsigned)uncomprLen) != (int)(len + len))
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error("gzread err: %s\n", PREFIX(gzerror)(file, &err));
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if (strcmp((char*)uncompr, hello))
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error("bad gzread: %s\n", (char*)uncompr);
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else
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printf("gzread(): %s\n", (char*)uncompr);
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}
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/* Check position at the end of the gz file */
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if (PREFIX(gzeof)(file) != 1) {
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fprintf(stderr, "gzeof err: not reporting end of stream\n");
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exit(1);
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}
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if (PREFIX(gzeof)(file) != 1)
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error("gzeof err: not reporting end of stream\n");
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/* Seek backwards mid-string and check char reading with gzgetc and gzungetc */
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pos = PREFIX(gzseek)(file, -22L, SEEK_CUR);
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if (pos != 6 || PREFIX(gztell)(file) != pos) {
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fprintf(stderr, "gzseek error, pos=%ld, gztell=%ld\n",
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(long)pos, (long)PREFIX(gztell)(file));
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exit(1);
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}
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if (PREFIX(gzgetc)(file) != ' ') {
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fprintf(stderr, "gzgetc error\n");
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exit(1);
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}
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if (PREFIX(gzungetc)(' ', file) != ' ') {
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fprintf(stderr, "gzungetc error\n");
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exit(1);
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}
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if (pos != 6 || PREFIX(gztell)(file) != pos)
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error("gzseek error, pos=%ld, gztell=%ld\n", (long)pos, (long)PREFIX(gztell)(file));
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if (PREFIX(gzgetc)(file) != ' ')
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error("gzgetc error\n");
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if (PREFIX(gzungetc)(' ', file) != ' ')
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error("gzungetc error\n");
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/* Read first hello, hello! string with gzgets */
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strcpy((char*)uncompr, "garbages");
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PREFIX(gzgets)(file, (char*)uncompr, (int)uncomprLen);
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if (strlen((char*)uncompr) != 7) { /* " hello!" */
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fprintf(stderr, "gzgets err after gzseek: %s\n", PREFIX(gzerror)(file, &err));
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exit(1);
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}
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if (strcmp((char*)uncompr, hello + 6)) {
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fprintf(stderr, "bad gzgets after gzseek\n");
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exit(1);
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} else {
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if (strlen((char*)uncompr) != 7) /* " hello!" */
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error("gzgets err after gzseek: %s\n", PREFIX(gzerror)(file, &err));
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if (strcmp((char*)uncompr, hello + 6))
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error("bad gzgets after gzseek\n");
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else
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printf("gzgets() after gzseek: %s\n", (char*)uncompr);
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}
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/* Seek to second hello, hello! string */
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pos = PREFIX(gzseek)(file, 14L, SEEK_SET);
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if (pos != 14 || PREFIX(gztell)(file) != pos) {
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fprintf(stderr, "gzseek error, pos=%ld, gztell=%ld\n",
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(long)pos, (long)PREFIX(gztell)(file));
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exit(1);
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}
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if (pos != 14 || PREFIX(gztell)(file) != pos)
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error("gzseek error, pos=%ld, gztell=%ld\n", (long)pos, (long)PREFIX(gztell)(file));
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/* Check position not at end of file */
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if (PREFIX(gzeof)(file) != 0) {
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fprintf(stderr, "gzeof err: reporting end of stream\n");
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exit(1);
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}
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if (PREFIX(gzeof)(file) != 0)
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error("gzeof err: reporting end of stream\n");
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/* Read first hello, hello! string with gzfread */
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strcpy((char*)uncompr, "garbages");
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read = PREFIX(gzfread)(uncompr, uncomprLen, 1, file);
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if (strcmp((const char *)uncompr, hello) != 0) {
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fprintf(stderr, "bad gzgets\n");
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exit(1);
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} else {
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if (strcmp((const char *)uncompr, hello) != 0)
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error("bad gzgets\n");
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else
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printf("gzgets(): %s\n", (char*)uncompr);
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}
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pos = PREFIX(gzoffset)(file);
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if (pos < 0 || pos != (comprLen + 10)) {
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fprintf(stderr, "gzoffset err: wrong offset at end\n");
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exit(1);
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}
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if (pos < 0 || pos != (comprLen + 10))
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error("gzoffset err: wrong offset at end\n");
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/* Trigger an error and clear it with gzclearerr */
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PREFIX(gzfread)(uncompr, (size_t)-1, (size_t)-1, file);
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PREFIX(gzerror)(file, &err);
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if (err == 0) {
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fprintf(stderr, "gzerror err: no error returned\n");
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exit(1);
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}
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if (err == 0)
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error("gzerror err: no error returned\n");
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PREFIX(gzclearerr)(file);
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PREFIX(gzerror)(file, &err);
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if (err != 0) {
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fprintf(stderr, "gzclearerr err: not zero %d\n", err);
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exit(1);
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}
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if (err != 0)
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error("gzclearerr err: not zero %d\n", err);
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PREFIX(gzclose)(file);
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if (PREFIX(gzclose)(NULL) != Z_STREAM_ERROR) {
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fprintf(stderr, "gzclose unexpected return when handle null\n");
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exit(1);
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}
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if (PREFIX(gzclose)(NULL) != Z_STREAM_ERROR)
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error("gzclose unexpected return when handle null\n");
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Z_UNUSED(read);
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#endif
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}
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@ -302,12 +263,10 @@ void test_inflate(unsigned char *compr, size_t comprLen, unsigned char *uncompr,
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err = PREFIX(inflateEnd)(&d_stream);
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CHECK_ERR(err, "inflateEnd");
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if (strcmp((char*)uncompr, hello)) {
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fprintf(stderr, "bad inflate\n");
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exit(1);
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} else {
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if (strcmp((char*)uncompr, hello))
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error("bad inflate\n");
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else
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printf("inflate(): %s\n", (char *)uncompr);
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}
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}
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static unsigned int diff;
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@ -349,29 +308,22 @@ void test_large_deflate(unsigned char *compr, size_t comprLen, unsigned char *un
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c_stream.avail_in = (unsigned int)uncomprLen;
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err = PREFIX(deflate)(&c_stream, Z_NO_FLUSH);
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CHECK_ERR(err, "deflate");
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if (c_stream.avail_in != 0) {
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fprintf(stderr, "deflate not greedy\n");
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exit(1);
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}
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if (c_stream.avail_in != 0)
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error("deflate not greedy\n");
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/* Feed in already compressed data and switch to no compression: */
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if (zng_params) {
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#ifndef ZLIB_COMPAT
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zng_deflateGetParams(&c_stream, params, sizeof(params) / sizeof(params[0]));
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if (level != Z_BEST_SPEED) {
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fprintf(stderr, "Expected compression level Z_BEST_SPEED, got %d\n", level);
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exit(1);
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}
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if (strategy != Z_DEFAULT_STRATEGY) {
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fprintf(stderr, "Expected compression strategy Z_DEFAULT_STRATEGY, got %d\n", strategy);
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exit(1);
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}
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if (level != Z_BEST_SPEED)
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error("Expected compression level Z_BEST_SPEED, got %d\n", level);
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if (strategy != Z_DEFAULT_STRATEGY)
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error("Expected compression strategy Z_DEFAULT_STRATEGY, got %d\n", strategy);
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level = Z_NO_COMPRESSION;
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strategy = Z_DEFAULT_STRATEGY;
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zng_deflateSetParams(&c_stream, params, sizeof(params) / sizeof(params[0]));
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#else
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fprintf(stderr, "test_large_deflate() called with zng_params=1 in compat mode\n");
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exit(1);
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error("test_large_deflate() called with zng_params=1 in compat mode\n");
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#endif
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} else {
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PREFIX(deflateParams)(&c_stream, Z_NO_COMPRESSION, Z_DEFAULT_STRATEGY);
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@ -388,20 +340,15 @@ void test_large_deflate(unsigned char *compr, size_t comprLen, unsigned char *un
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level = -1;
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strategy = -1;
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zng_deflateGetParams(&c_stream, params, sizeof(params) / sizeof(params[0]));
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if (level != Z_NO_COMPRESSION) {
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fprintf(stderr, "Expected compression level Z_NO_COMPRESSION, got %d\n", level);
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exit(1);
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}
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if (strategy != Z_DEFAULT_STRATEGY) {
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fprintf(stderr, "Expected compression strategy Z_DEFAULT_STRATEGY, got %d\n", strategy);
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exit(1);
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}
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if (level != Z_NO_COMPRESSION)
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error("Expected compression level Z_NO_COMPRESSION, got %d\n", level);
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if (strategy != Z_DEFAULT_STRATEGY)
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error("Expected compression strategy Z_DEFAULT_STRATEGY, got %d\n", strategy);
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level = Z_BEST_COMPRESSION;
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strategy = Z_FILTERED;
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zng_deflateSetParams(&c_stream, params, sizeof(params) / sizeof(params[0]));
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#else
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fprintf(stderr, "test_large_deflate() called with zng_params=1 in compat mode\n");
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exit(1);
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error("test_large_deflate() called with zng_params=1 in compat mode\n");
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#endif
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} else {
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PREFIX(deflateParams)(&c_stream, Z_BEST_COMPRESSION, Z_FILTERED);
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@ -412,10 +359,8 @@ void test_large_deflate(unsigned char *compr, size_t comprLen, unsigned char *un
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CHECK_ERR(err, "deflate");
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err = PREFIX(deflate)(&c_stream, Z_FINISH);
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if (err != Z_STREAM_END) {
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fprintf(stderr, "deflate should report Z_STREAM_END\n");
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exit(1);
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}
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if (err != Z_STREAM_END)
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error("deflate should report Z_STREAM_END\n");
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err = PREFIX(deflateEnd)(&c_stream);
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CHECK_ERR(err, "deflateEnd");
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}
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@ -452,12 +397,10 @@ void test_large_inflate(unsigned char *compr, size_t comprLen, unsigned char *un
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err = PREFIX(inflateEnd)(&d_stream);
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CHECK_ERR(err, "inflateEnd");
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if (d_stream.total_out != 2*uncomprLen + diff) {
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fprintf(stderr, "bad large inflate: %" PRIu64 "\n", (uint64_t)d_stream.total_out);
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exit(1);
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} else {
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if (d_stream.total_out != 2*uncomprLen + diff)
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error("bad large inflate: %" PRIu64 "\n", (uint64_t)d_stream.total_out);
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else
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printf("large_inflate(): OK\n");
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}
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}
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/* ===========================================================================
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@ -525,10 +468,8 @@ void test_sync(unsigned char *compr, size_t comprLen, unsigned char *uncompr, si
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CHECK_ERR(err, "inflateSync");
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err = PREFIX(inflate)(&d_stream, Z_FINISH);
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if (err != Z_STREAM_END) {
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fprintf(stderr, "inflate should report Z_STREAM_END\n");
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exit(1);
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}
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if (err != Z_STREAM_END)
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error("inflate should report Z_STREAM_END\n");
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err = PREFIX(inflateEnd)(&d_stream);
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CHECK_ERR(err, "inflateEnd");
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@ -562,10 +503,8 @@ void test_dict_deflate(unsigned char *compr, size_t comprLen) {
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c_stream.avail_in = (unsigned int)strlen(hello)+1;
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err = PREFIX(deflate)(&c_stream, Z_FINISH);
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if (err != Z_STREAM_END) {
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fprintf(stderr, "deflate should report Z_STREAM_END\n");
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exit(1);
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}
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if (err != Z_STREAM_END)
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error("deflate should report Z_STREAM_END\n");
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err = PREFIX(deflateEnd)(&c_stream);
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CHECK_ERR(err, "deflateEnd");
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}
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@ -598,10 +537,8 @@ void test_dict_inflate(unsigned char *compr, size_t comprLen, unsigned char *unc
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err = PREFIX(inflate)(&d_stream, Z_NO_FLUSH);
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if (err == Z_STREAM_END) break;
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if (err == Z_NEED_DICT) {
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if (d_stream.adler != dictId) {
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fprintf(stderr, "unexpected dictionary");
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exit(1);
|
||||
}
|
||||
if (d_stream.adler != dictId)
|
||||
error("unexpected dictionary");
|
||||
err = PREFIX(inflateSetDictionary)(&d_stream, (const unsigned char*)dictionary,
|
||||
(int)sizeof(dictionary));
|
||||
}
|
||||
@ -610,27 +547,21 @@ void test_dict_inflate(unsigned char *compr, size_t comprLen, unsigned char *unc
|
||||
|
||||
err = PREFIX(inflateGetDictionary)(&d_stream, NULL, &check_dictionary_len);
|
||||
CHECK_ERR(err, "inflateGetDictionary");
|
||||
if (check_dictionary_len != sizeof(dictionary)) {
|
||||
fprintf(stderr, "bad dictionary length\n");
|
||||
exit(1);
|
||||
}
|
||||
if (check_dictionary_len != sizeof(dictionary))
|
||||
error("bad dictionary length\n");
|
||||
|
||||
err = PREFIX(inflateGetDictionary)(&d_stream, check_dictionary, &check_dictionary_len);
|
||||
CHECK_ERR(err, "inflateGetDictionary");
|
||||
if (memcmp(dictionary, check_dictionary, sizeof(dictionary)) != 0) {
|
||||
fprintf(stderr, "bad dictionary\n");
|
||||
exit(1);
|
||||
}
|
||||
if (memcmp(dictionary, check_dictionary, sizeof(dictionary)) != 0)
|
||||
error("bad dictionary\n");
|
||||
|
||||
err = PREFIX(inflateEnd)(&d_stream);
|
||||
CHECK_ERR(err, "inflateEnd");
|
||||
|
||||
if (strncmp((char*)uncompr, hello, sizeof(hello))) {
|
||||
fprintf(stderr, "bad inflate with dict\n");
|
||||
exit(1);
|
||||
} else {
|
||||
if (strncmp((char*)uncompr, hello, sizeof(hello)))
|
||||
error("bad inflate with dict\n");
|
||||
else
|
||||
printf("inflate with dictionary: %s\n", (char *)uncompr);
|
||||
}
|
||||
}
|
||||
|
||||
/* ===========================================================================
|
||||
@ -750,10 +681,8 @@ void test_deflate_get_dict(unsigned char *compr, size_t comprLen) {
|
||||
|
||||
err = PREFIX(deflate)(&c_stream, Z_FINISH);
|
||||
|
||||
if (err != Z_STREAM_END) {
|
||||
fprintf(stderr, "deflate should report Z_STREAM_END\n");
|
||||
exit(1);
|
||||
}
|
||||
if (err != Z_STREAM_END)
|
||||
error("deflate should report Z_STREAM_END\n");
|
||||
|
||||
dictNew = calloc(256, 1);
|
||||
dictLen = (unsigned int *)calloc(4, 1);
|
||||
@ -905,14 +834,10 @@ void test_deflate_prime(unsigned char *compr, size_t comprLen, unsigned char *un
|
||||
err = PREFIX(inflateEnd)(&d_stream);
|
||||
CHECK_ERR(err, "inflateEnd");
|
||||
|
||||
if (strcmp((const char *)uncompr, hello) != 0) {
|
||||
fprintf(stderr, "bad deflatePrime\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
if (err == Z_OK) {
|
||||
if (strcmp((const char *)uncompr, hello) != 0)
|
||||
error("bad deflatePrime\n");
|
||||
if (err == Z_OK)
|
||||
printf("deflatePrime(): OK\n");
|
||||
}
|
||||
}
|
||||
|
||||
/* ===========================================================================
|
||||
@ -925,10 +850,8 @@ void test_deflate_set_header(unsigned char *compr, size_t comprLen) {
|
||||
size_t len = strlen(hello)+1;
|
||||
|
||||
|
||||
if (head == NULL) {
|
||||
printf("out of memory\n");
|
||||
exit(1);
|
||||
}
|
||||
if (head == NULL)
|
||||
error("out of memory\n");
|
||||
|
||||
c_stream.zalloc = zalloc;
|
||||
c_stream.zfree = zfree;
|
||||
@ -1047,10 +970,8 @@ int main(int argc, char *argv[]) {
|
||||
/* compr and uncompr are cleared to avoid reading uninitialized
|
||||
* data and to ensure that uncompr compresses well.
|
||||
*/
|
||||
if (compr == NULL || uncompr == NULL) {
|
||||
printf("out of memory\n");
|
||||
exit(1);
|
||||
}
|
||||
if (compr == NULL || uncompr == NULL)
|
||||
error("out of memory\n");
|
||||
|
||||
test_compress(compr, comprLen, uncompr, uncomprLen);
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user