diff options
Diffstat (limited to 'example.c')
| -rw-r--r-- | example.c | 83 |
1 files changed, 41 insertions, 42 deletions
@@ -1,6 +1,6 @@ /* example.c -- usage example of the zlib compression library * Copyright (C) 1995-2003 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h + * For conditions of distribution and use, see copyright notice in zlib.h */ /* @(#) $Id$ */ @@ -37,22 +37,22 @@ const char dictionary[] = "hello"; uLong dictId; /* Adler32 value of the dictionary */ void test_compress OF((Byte *compr, uLong comprLen, - Byte *uncompr, uLong uncomprLen)); -void test_gzio OF((const char *out, const char *in, - Byte *uncompr, int uncomprLen)); + Byte *uncompr, uLong uncomprLen)); +void test_gzio OF((const char *out, const char *in, + Byte *uncompr, int uncomprLen)); void test_deflate OF((Byte *compr, uLong comprLen)); void test_inflate OF((Byte *compr, uLong comprLen, - Byte *uncompr, uLong uncomprLen)); + Byte *uncompr, uLong uncomprLen)); void test_large_deflate OF((Byte *compr, uLong comprLen, - Byte *uncompr, uLong uncomprLen)); + Byte *uncompr, uLong uncomprLen)); void test_large_inflate OF((Byte *compr, uLong comprLen, - Byte *uncompr, uLong uncomprLen)); + Byte *uncompr, uLong uncomprLen)); void test_flush OF((Byte *compr, uLong *comprLen)); void test_sync OF((Byte *compr, uLong comprLen, - Byte *uncompr, uLong uncomprLen)); + Byte *uncompr, uLong uncomprLen)); void test_dict_deflate OF((Byte *compr, uLong comprLen)); void test_dict_inflate OF((Byte *compr, uLong comprLen, - Byte *uncompr, uLong uncomprLen)); + Byte *uncompr, uLong uncomprLen)); int main OF((int argc, char *argv[])); /* =========================================================================== @@ -75,7 +75,7 @@ void test_compress(compr, comprLen, uncompr, uncomprLen) if (strcmp((char*)uncompr, hello)) { fprintf(stderr, "bad uncompress\n"); - exit(1); + exit(1); } else { printf("uncompress(): %s\n", (char *)uncompr); } @@ -103,11 +103,11 @@ void test_gzio(out, in, uncompr, uncomprLen) gzputc(file, 'h'); if (gzputs(file, "ello") != 4) { fprintf(stderr, "gzputs err: %s\n", gzerror(file, &err)); - exit(1); + exit(1); } if (gzprintf(file, ", %s!", "hello") != 8) { fprintf(stderr, "gzprintf err: %s\n", gzerror(file, &err)); - exit(1); + exit(1); } gzseek(file, 1L, SEEK_CUR); /* add one zero byte */ gzclose(file); @@ -121,36 +121,36 @@ void test_gzio(out, in, uncompr, uncomprLen) uncomprLen = gzread(file, uncompr, (unsigned)uncomprLen); if (uncomprLen != len) { fprintf(stderr, "gzread err: %s\n", gzerror(file, &err)); - exit(1); + exit(1); } if (strcmp((char*)uncompr, hello)) { fprintf(stderr, "bad gzread: %s\n", (char*)uncompr); - exit(1); + exit(1); } else { printf("gzread(): %s\n", (char *)uncompr); } pos = gzseek(file, -8L, SEEK_CUR); if (pos != 6 || gztell(file) != pos) { - fprintf(stderr, "gzseek error, pos=%ld, gztell=%ld\n", - (long)pos, (long)gztell(file)); - exit(1); + fprintf(stderr, "gzseek error, pos=%ld, gztell=%ld\n", + (long)pos, (long)gztell(file)); + exit(1); } if (gzgetc(file) != ' ') { - fprintf(stderr, "gzgetc error\n"); - exit(1); + fprintf(stderr, "gzgetc error\n"); + exit(1); } gzgets(file, (char*)uncompr, uncomprLen); uncomprLen = strlen((char*)uncompr); if (uncomprLen != 6) { /* "hello!" */ fprintf(stderr, "gzgets err after gzseek: %s\n", gzerror(file, &err)); - exit(1); + exit(1); } if (strcmp((char*)uncompr, hello+7)) { fprintf(stderr, "bad gzgets after gzseek\n"); - exit(1); + exit(1); } else { printf("gzgets() after gzseek: %s\n", (char *)uncompr); } @@ -231,7 +231,7 @@ void test_inflate(compr, comprLen, uncompr, uncomprLen) if (strcmp((char*)uncompr, hello)) { fprintf(stderr, "bad inflate\n"); - exit(1); + exit(1); } else { printf("inflate(): %s\n", (char *)uncompr); } @@ -266,7 +266,7 @@ void test_large_deflate(compr, comprLen, uncompr, uncomprLen) CHECK_ERR(err, "deflate"); if (c_stream.avail_in != 0) { fprintf(stderr, "deflate not greedy\n"); - exit(1); + exit(1); } /* Feed in already compressed data and switch to no compression: */ @@ -286,7 +286,7 @@ void test_large_deflate(compr, comprLen, uncompr, uncomprLen) err = deflate(&c_stream, Z_FINISH); if (err != Z_STREAM_END) { fprintf(stderr, "deflate should report Z_STREAM_END\n"); - exit(1); + exit(1); } err = deflateEnd(&c_stream); CHECK_ERR(err, "deflateEnd"); @@ -316,7 +316,7 @@ void test_large_inflate(compr, comprLen, uncompr, uncomprLen) for (;;) { d_stream.next_out = uncompr; /* discard the output */ - d_stream.avail_out = (uInt)uncomprLen; + d_stream.avail_out = (uInt)uncomprLen; err = inflate(&d_stream, Z_NO_FLUSH); if (err == Z_STREAM_END) break; CHECK_ERR(err, "large inflate"); @@ -327,7 +327,7 @@ void test_large_inflate(compr, comprLen, uncompr, uncomprLen) if (d_stream.total_out != 2*uncomprLen + comprLen/2) { fprintf(stderr, "bad large inflate: %ld\n", d_stream.total_out); - exit(1); + exit(1); } else { printf("large_inflate(): OK\n"); } @@ -407,7 +407,7 @@ void test_sync(compr, comprLen, uncompr, uncomprLen) if (err != Z_DATA_ERROR) { fprintf(stderr, "inflate should report DATA_ERROR\n"); /* Because of incorrect adler32 */ - exit(1); + exit(1); } err = inflateEnd(&d_stream); CHECK_ERR(err, "inflateEnd"); @@ -433,7 +433,7 @@ void test_dict_deflate(compr, comprLen) CHECK_ERR(err, "deflateInit"); err = deflateSetDictionary(&c_stream, - (const Bytef*)dictionary, sizeof(dictionary)); + (const Bytef*)dictionary, sizeof(dictionary)); CHECK_ERR(err, "deflateSetDictionary"); dictId = c_stream.adler; @@ -446,7 +446,7 @@ void test_dict_deflate(compr, comprLen) err = deflate(&c_stream, Z_FINISH); if (err != Z_STREAM_END) { fprintf(stderr, "deflate should report Z_STREAM_END\n"); - exit(1); + exit(1); } err = deflateEnd(&c_stream); CHECK_ERR(err, "deflateEnd"); @@ -480,14 +480,14 @@ void test_dict_inflate(compr, comprLen, uncompr, uncomprLen) for (;;) { err = inflate(&d_stream, Z_NO_FLUSH); if (err == Z_STREAM_END) break; - if (err == Z_NEED_DICT) { - if (d_stream.adler != dictId) { - fprintf(stderr, "unexpected dictionary"); - exit(1); - } - err = inflateSetDictionary(&d_stream, (const Bytef*)dictionary, - sizeof(dictionary)); - } + if (err == Z_NEED_DICT) { + if (d_stream.adler != dictId) { + fprintf(stderr, "unexpected dictionary"); + exit(1); + } + err = inflateSetDictionary(&d_stream, (const Bytef*)dictionary, + sizeof(dictionary)); + } CHECK_ERR(err, "inflate with dict"); } @@ -496,7 +496,7 @@ void test_dict_inflate(compr, comprLen, uncompr, uncomprLen) if (strcmp((char*)uncompr, hello)) { fprintf(stderr, "bad inflate with dict\n"); - exit(1); + exit(1); } else { printf("inflate with dictionary: %s\n", (char *)uncompr); } @@ -530,13 +530,13 @@ int main(argc, argv) */ if (compr == Z_NULL || uncompr == Z_NULL) { printf("out of memory\n"); - exit(1); + exit(1); } test_compress(compr, comprLen, uncompr, uncomprLen); test_gzio((argc > 1 ? argv[1] : TESTFILE), (argc > 2 ? argv[2] : TESTFILE), - uncompr, (int)uncomprLen); + uncompr, (int)uncomprLen); test_deflate(compr, comprLen); test_inflate(compr, comprLen, uncompr, uncomprLen); @@ -554,6 +554,5 @@ int main(argc, argv) free(compr); free(uncompr); - exit(0); - return 0; /* to avoid warning */ + return 0; } |