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gunzip: support decompressing from stdin

This commit is contained in:
K. Lange 2020-05-05 10:03:09 +09:00
parent c43fc42b8a
commit 75ece46da9
1 changed files with 11 additions and 7 deletions
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18
apps/gunzip.c
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@ -13,6 +13,9 @@
#include <toaru/inflate.h>
static int to_stdout = 0;
static int keep = 0;
static uint8_t _get(struct inflate_context * ctx) {
return fgetc(ctx->input_priv);
}
@ -34,11 +37,9 @@ static int usage(int argc, char * argv[]) {
}
int main(int argc, char * argv[]) {
int to_stdout = 0;
int keep = 0;
int opt;
while ((opt = getopt(argc, argv, "ck")) != -1) {
while ((opt = getopt(argc, argv, "?ck")) != -1) {
switch (opt) {
case 'c':
to_stdout = 1;
@ -47,18 +48,21 @@ int main(int argc, char * argv[]) {
case 'k':
keep = 1;
break;
case '?':
return usage(argc, argv);
default:
fprintf(stderr, "%s: unrecognized option '%c'\n", argv[0], opt);
break;
}
}
if (optind >= argc) {
return usage(argc, argv);
FILE * f;
if (optind >= argc || !strcmp(argv[optind],"-")) {
f = stdin;
} else {
f =fopen(argv[optind],"r");
}
FILE * f = fopen(argv[optind],"r");
if (!f) {
fprintf(stderr, "%s: %s: %s\n", argv[0], argv[optind], strerror(errno));
return 1;