void gz_compress(
FILE *in,
gzFile out)
{
local char buf[BUFLEN];
int len;
int err;
#ifdef USE_MMAP
/* Try first compressing with mmap. If mmap fails (minigzip used in a
* pipe), use the normal fread loop.
*/
if (gz_compress_mmap(in, out) == Z_OK) return;
#endif
for (;;) {
len = (int)fread(buf, 1, sizeof(buf), in);
if (ferror(in)) {
perror("fread");
exit(1);
}
if (len == 0) break;
if (gzwrite(out, buf, (unsigned)len) != len) error(gzerror(out, &err));
}
fclose(in);
if (gzclose(out) != Z_OK) error("failed gzclose");
}
/* ===========================================================================
* Compress input to output then close both files.
*/
BOOL gz_compress(FILE *lpInfile, gzFile lpOutfile)
{
BOOL nSuccess = TRUE;
local char buf[BUFLEN];
INT32 len;
int err;
#ifdef USE_MMAP
/* Try first compressing with mmap. If mmap fails (minigzip used in a
* pipe), use the normal fread loop.
*/
if (gz_compress_mmap(lpInfile, lpOutfile) == Z_OK) return;
#endif
for (;;) {
len = fread(buf, 1, sizeof(buf), lpInfile);
if (ferror(lpInfile)) {
perror("fread");
nSuccess = FALSE;
}
if (len == 0) break;
if (gzwrite(lpOutfile, buf, (unsigned)len) != len)
{
perror(gzerror(lpOutfile, &err));
nSuccess = FALSE;
}
}
fclose(lpInfile);
if (gzclose(lpOutfile) != Z_OK)
{
perror("failed gzclose");
return nSuccess;
}
return TRUE;
}
