全部，
我只是试图让 zpipe 演示使用 dev-c++ 工作，其中我导入了所有 zlib 代码并使用 zpipe.c 作为示例。一切都编译并运行。如果我尝试使用注释掉的 deflateInit2 调用创建一个 gzip 文件，它会创建现在的错误，但在使用 7zip 解压缩时会损坏。如果我使用标准的 zlib 头文件来创建文件，当我使用相应的调用进行膨胀时，它会返回 -3/Z_DATA_ERROR，表明我的默认数据已损坏。一切都表明定义中有问题，但它几乎就是这个例子。
有任何想法吗？？提前非常感谢！
int main(int argc, char **argv)
{
int ret;
FILE *source;
FILE *zip;
FILE *zipped;
FILE *back;
source = fopen ("C:\\Users\\schmoudm\\Pictures\\caela.jpg", "r");
zip = fopen ("C:\\Core\\RD\\test.gz", "w");
printf ("calling def \n");
ret = def(source, zip, Z_DEFAULT_COMPRESSION);
printf("def return: %i \n", ret);
fclose(source);
fclose(zip);
if (ret == 0) {
printf ("setting up inf \n");
zipped = fopen ("C:\\Core\\RD\\test.gz", "r");
back = fopen ("C:\\Core\\RD\\zlibout.txt", "w");
printf ("calling inf \n");
ret = inf(zipped, back);
printf("inf return: %i \n", ret);
zerr(ret);
}
fclose(source);
fclose(zip);
printf("DONE!");
system("PAUSE");
return 0;
}
int def(FILE *source, FILE *dest, int level)
{
int ret, flush;
unsigned have;
z_stream strm;
unsigned char in[CHUNK];
unsigned char out[CHUNK];
/* allocate deflate state */
strm.zalloc = Z_NULL;
strm.zfree = Z_NULL;
strm.opaque = Z_NULL;
ret = deflateInit(&strm, Z_DEFAULT_COMPRESSION);
//ret = deflateInit2(&strm, Z_DEFAULT_COMPRESSION, Z_DEFLATED, (15+16), 8, Z_DEFAULT_STRATEGY);
if (ret != Z_OK)
return ret;
/* compress until end of file */
do {
strm.avail_in = fread(in, 1, CHUNK, source);
printf("available in: %u \n", strm.avail_in);
if (ferror(source)) {
(void)deflateEnd(&strm);
return Z_ERRNO;
}
flush = feof(source) ? Z_FINISH : Z_NO_FLUSH;
strm.next_in = in;
/* run deflate() on input until output buffer not full, finish
compression if all of source has been read in */
do {
strm.avail_out = CHUNK;
strm.next_out = out;
ret = deflate(&strm, flush); /* no bad return value */
assert(ret != Z_STREAM_ERROR); /* state not clobbered */
have = CHUNK - strm.avail_out;
if (fwrite(out, 1, have, dest) != have || ferror(dest)) {
(void)deflateEnd(&strm);
return Z_ERRNO;
}
} while (strm.avail_out == 0);
assert(strm.avail_in == 0); /* all input will be used */
/* done when last data in file processed */
} while (flush != Z_FINISH);
assert(ret == Z_STREAM_END); /* stream will be complete */
/* clean up and return */
(void)deflateEnd(&strm);
return Z_OK;
}