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zlib 0.92

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This commit is contained in:
Mark Adler
2011-09-09 23:08:07 -07:00
parent 1c71d8b13b
commit bdde4e09d2
25 changed files with 884 additions and 910 deletions
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88
minigzip.c
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@@ -13,7 +13,7 @@
* or in pipe mode.
*/
/* $Id: minigzip.c,v 1.4 1995/05/02 15:54:22 jloup Exp $ */
/* $Id: minigzip.c,v 1.5 1995/05/03 17:27:11 jloup Exp $ */
#include <stdio.h>
#include "zlib.h"
@@ -75,14 +75,14 @@ void gz_compress(in, out)
int err;
for (;;) {
len = fread(buf, 1, sizeof(buf), in);
if (ferror(in)) {
perror("fread");
exit(1);
}
if (len == 0) break;
len = fread(buf, 1, sizeof(buf), in);
if (ferror(in)) {
perror("fread");
exit(1);
}
if (len == 0) break;
if (gzwrite(out, buf, len) != len) error(gzerror(out, &err));
if (gzwrite(out, buf, len) != len) error(gzerror(out, &err));
}
fclose(in);
if (gzclose(out) != Z_OK) error("failed gzclose");
@@ -100,11 +100,11 @@ void gz_uncompress(in, out)
int err;
for (;;) {
len = gzread(in, buf, sizeof(buf));
if (len < 0) error (gzerror(in, &err));
if (len == 0) break;
len = gzread(in, buf, sizeof(buf));
if (len < 0) error (gzerror(in, &err));
if (len == 0) break;
if (fwrite(buf, 1, len, out) != (uInt)len) error("failed fwrite");
if (fwrite(buf, 1, len, out) != (uInt)len) error("failed fwrite");
}
if (fclose(out)) error("failed fclose");
@@ -128,13 +128,13 @@ void file_compress(file)
in = fopen(file, "rb");
if (in == NULL) {
perror(file);
exit(1);
perror(file);
exit(1);
}
out = gzopen(outfile, "wb");
if (out == NULL) {
fprintf(stderr, "%s: can't gzopen %s\n", prog, outfile);
exit(1);
fprintf(stderr, "%s: can't gzopen %s\n", prog, outfile);
exit(1);
}
gz_compress(in, out);
@@ -157,23 +157,23 @@ void file_uncompress(file)
strcpy(buf, file);
if (len > 3 && strcmp(file+len-3, ".gz") == 0) {
infile = file;
outfile = buf;
outfile[len-3] = '\0';
infile = file;
outfile = buf;
outfile[len-3] = '\0';
} else {
outfile = file;
infile = buf;
strcat(infile, ".gz");
outfile = file;
infile = buf;
strcat(infile, ".gz");
}
in = gzopen(infile, "rb");
if (in == NULL) {
fprintf(stderr, "%s: can't gzopen %s\n", prog, infile);
exit(1);
fprintf(stderr, "%s: can't gzopen %s\n", prog, infile);
exit(1);
}
out = fopen(outfile, "wb");
if (out == NULL) {
perror(file);
exit(1);
perror(file);
exit(1);
}
gz_uncompress(in, out);
@@ -197,31 +197,31 @@ void main(argc, argv)
argc--, argv++;
if (argc > 0) {
uncompr = (strcmp(*argv, "-d") == 0);
if (uncompr) {
argc--, argv++;
}
uncompr = (strcmp(*argv, "-d") == 0);
if (uncompr) {
argc--, argv++;
}
}
if (argc == 0) {
SET_BINARY_MODE(stdin);
SET_BINARY_MODE(stdout);
if (uncompr) {
file = gzdopen(fileno(stdin), "rb");
if (uncompr) {
file = gzdopen(fileno(stdin), "rb");
if (file == NULL) error("can't gzdopen stdin");
gz_uncompress(file, stdout);
} else {
file = gzdopen(fileno(stdout), "wb");
gz_uncompress(file, stdout);
} else {
file = gzdopen(fileno(stdout), "wb");
if (file == NULL) error("can't gzdopen stdout");
gz_compress(stdin, file);
}
gz_compress(stdin, file);
}
} else {
do {
if (uncompr) {
file_uncompress(*argv);
} else {
file_compress(*argv);
}
} while (argv++, --argc);
do {
if (uncompr) {
file_uncompress(*argv);
} else {
file_compress(*argv);
}
} while (argv++, --argc);
}
exit(0);
}