zlib 1.2.0.1
This commit is contained in:
83
example.c
83
example.c
@@ -1,6 +1,6 @@
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/* example.c -- usage example of the zlib compression library
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* Copyright (C) 1995-2003 Jean-loup Gailly.
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* For conditions of distribution and use, see copyright notice in zlib.h
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* For conditions of distribution and use, see copyright notice in zlib.h
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*/
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/* @(#) $Id$ */
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@@ -37,22 +37,22 @@ const char dictionary[] = "hello";
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uLong dictId; /* Adler32 value of the dictionary */
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void test_compress OF((Byte *compr, uLong comprLen,
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Byte *uncompr, uLong uncomprLen));
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void test_gzio OF((const char *out, const char *in,
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Byte *uncompr, int uncomprLen));
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Byte *uncompr, uLong uncomprLen));
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void test_gzio OF((const char *out, const char *in,
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Byte *uncompr, int uncomprLen));
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void test_deflate OF((Byte *compr, uLong comprLen));
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void test_inflate OF((Byte *compr, uLong comprLen,
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Byte *uncompr, uLong uncomprLen));
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Byte *uncompr, uLong uncomprLen));
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void test_large_deflate OF((Byte *compr, uLong comprLen,
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Byte *uncompr, uLong uncomprLen));
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Byte *uncompr, uLong uncomprLen));
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void test_large_inflate OF((Byte *compr, uLong comprLen,
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Byte *uncompr, uLong uncomprLen));
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Byte *uncompr, uLong uncomprLen));
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void test_flush OF((Byte *compr, uLong *comprLen));
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void test_sync OF((Byte *compr, uLong comprLen,
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Byte *uncompr, uLong uncomprLen));
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Byte *uncompr, uLong uncomprLen));
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void test_dict_deflate OF((Byte *compr, uLong comprLen));
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void test_dict_inflate OF((Byte *compr, uLong comprLen,
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Byte *uncompr, uLong uncomprLen));
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Byte *uncompr, uLong uncomprLen));
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int main OF((int argc, char *argv[]));
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/* ===========================================================================
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@@ -75,7 +75,7 @@ void test_compress(compr, comprLen, uncompr, uncomprLen)
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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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exit(1);
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} else {
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printf("uncompress(): %s\n", (char *)uncompr);
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}
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@@ -103,11 +103,11 @@ void test_gzio(out, in, uncompr, uncomprLen)
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gzputc(file, 'h');
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if (gzputs(file, "ello") != 4) {
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fprintf(stderr, "gzputs err: %s\n", gzerror(file, &err));
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exit(1);
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exit(1);
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}
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if (gzprintf(file, ", %s!", "hello") != 8) {
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fprintf(stderr, "gzprintf err: %s\n", gzerror(file, &err));
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exit(1);
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exit(1);
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}
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gzseek(file, 1L, SEEK_CUR); /* add one zero byte */
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gzclose(file);
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@@ -121,36 +121,36 @@ void test_gzio(out, in, uncompr, uncomprLen)
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uncomprLen = gzread(file, uncompr, (unsigned)uncomprLen);
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if (uncomprLen != len) {
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fprintf(stderr, "gzread err: %s\n", gzerror(file, &err));
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exit(1);
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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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exit(1);
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} else {
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printf("gzread(): %s\n", (char *)uncompr);
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}
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pos = gzseek(file, -8L, SEEK_CUR);
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if (pos != 6 || gztell(file) != pos) {
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fprintf(stderr, "gzseek error, pos=%ld, gztell=%ld\n",
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(long)pos, (long)gztell(file));
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exit(1);
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fprintf(stderr, "gzseek error, pos=%ld, gztell=%ld\n",
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(long)pos, (long)gztell(file));
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exit(1);
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}
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if (gzgetc(file) != ' ') {
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fprintf(stderr, "gzgetc error\n");
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exit(1);
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fprintf(stderr, "gzgetc error\n");
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exit(1);
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}
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gzgets(file, (char*)uncompr, uncomprLen);
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uncomprLen = strlen((char*)uncompr);
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if (uncomprLen != 6) { /* "hello!" */
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fprintf(stderr, "gzgets err after gzseek: %s\n", gzerror(file, &err));
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exit(1);
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exit(1);
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}
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if (strcmp((char*)uncompr, hello+7)) {
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fprintf(stderr, "bad gzgets after gzseek\n");
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exit(1);
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exit(1);
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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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@@ -231,7 +231,7 @@ void test_inflate(compr, comprLen, uncompr, uncomprLen)
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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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exit(1);
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} else {
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printf("inflate(): %s\n", (char *)uncompr);
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}
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@@ -266,7 +266,7 @@ void test_large_deflate(compr, comprLen, uncompr, uncomprLen)
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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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exit(1);
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}
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/* Feed in already compressed data and switch to no compression: */
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@@ -286,7 +286,7 @@ void test_large_deflate(compr, comprLen, uncompr, uncomprLen)
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err = 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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exit(1);
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}
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err = deflateEnd(&c_stream);
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CHECK_ERR(err, "deflateEnd");
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@@ -316,7 +316,7 @@ void test_large_inflate(compr, comprLen, uncompr, uncomprLen)
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for (;;) {
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d_stream.next_out = uncompr; /* discard the output */
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d_stream.avail_out = (uInt)uncomprLen;
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d_stream.avail_out = (uInt)uncomprLen;
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err = inflate(&d_stream, Z_NO_FLUSH);
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if (err == Z_STREAM_END) break;
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CHECK_ERR(err, "large inflate");
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@@ -327,7 +327,7 @@ void test_large_inflate(compr, comprLen, uncompr, uncomprLen)
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if (d_stream.total_out != 2*uncomprLen + comprLen/2) {
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fprintf(stderr, "bad large inflate: %ld\n", d_stream.total_out);
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exit(1);
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exit(1);
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} else {
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printf("large_inflate(): OK\n");
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}
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@@ -407,7 +407,7 @@ void test_sync(compr, comprLen, uncompr, uncomprLen)
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if (err != Z_DATA_ERROR) {
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fprintf(stderr, "inflate should report DATA_ERROR\n");
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/* Because of incorrect adler32 */
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exit(1);
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exit(1);
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}
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err = inflateEnd(&d_stream);
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CHECK_ERR(err, "inflateEnd");
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@@ -433,7 +433,7 @@ void test_dict_deflate(compr, comprLen)
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CHECK_ERR(err, "deflateInit");
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err = deflateSetDictionary(&c_stream,
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(const Bytef*)dictionary, sizeof(dictionary));
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(const Bytef*)dictionary, sizeof(dictionary));
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CHECK_ERR(err, "deflateSetDictionary");
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dictId = c_stream.adler;
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@@ -446,7 +446,7 @@ void test_dict_deflate(compr, comprLen)
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err = 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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exit(1);
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}
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err = deflateEnd(&c_stream);
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CHECK_ERR(err, "deflateEnd");
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@@ -480,14 +480,14 @@ void test_dict_inflate(compr, comprLen, uncompr, uncomprLen)
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for (;;) {
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err = 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);
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}
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err = inflateSetDictionary(&d_stream, (const Bytef*)dictionary,
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sizeof(dictionary));
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}
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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);
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}
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err = inflateSetDictionary(&d_stream, (const Bytef*)dictionary,
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sizeof(dictionary));
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}
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CHECK_ERR(err, "inflate with dict");
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}
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@@ -496,7 +496,7 @@ void test_dict_inflate(compr, comprLen, uncompr, uncomprLen)
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if (strcmp((char*)uncompr, hello)) {
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fprintf(stderr, "bad inflate with dict\n");
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exit(1);
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exit(1);
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} else {
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printf("inflate with dictionary: %s\n", (char *)uncompr);
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}
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@@ -530,13 +530,13 @@ int main(argc, argv)
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*/
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if (compr == Z_NULL || uncompr == Z_NULL) {
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printf("out of memory\n");
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exit(1);
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exit(1);
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}
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test_compress(compr, comprLen, uncompr, uncomprLen);
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test_gzio((argc > 1 ? argv[1] : TESTFILE),
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(argc > 2 ? argv[2] : TESTFILE),
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uncompr, (int)uncomprLen);
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uncompr, (int)uncomprLen);
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test_deflate(compr, comprLen);
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test_inflate(compr, comprLen, uncompr, uncomprLen);
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@@ -554,6 +554,5 @@ int main(argc, argv)
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free(compr);
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free(uncompr);
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exit(0);
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return 0; /* to avoid warning */
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return 0;
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}
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