Use bb_getopt_ulflags, save 150 bytes.
diff --git a/archival/gunzip.c b/archival/gunzip.c
index f229ae5..367e047 100644
--- a/archival/gunzip.c
+++ b/archival/gunzip.c
@@ -71,37 +71,20 @@
#include "busybox.h"
#include "unarchive.h"
-const char gunzip_to_stdout = 1;
-const char gunzip_force = 2;
-const char gunzip_test = 4;
+#define GUNZIP_OPT_STDOUT 1
+#define GUNZIP_OPT_FORCE 2
+#define GUNZIP_OPT_TEST 4
+#define GUNZIP_OPT_DECOMPRESS 8
extern int gunzip_main(int argc, char **argv)
{
char status = EXIT_SUCCESS;
- char flags = 0;
- int opt;
+ unsigned long opt;
+ opt = bb_getopt_ulflags(argc, argv, "cftd");
/* if called as zcat */
if (strcmp(bb_applet_name, "zcat") == 0) {
- flags |= gunzip_to_stdout;
- }
-
- while ((opt = getopt(argc, argv, "ctfhd")) != -1) {
- switch (opt) {
- case 'c':
- flags |= gunzip_to_stdout;
- break;
- case 'f':
- flags |= gunzip_force;
- break;
- case 't':
- flags |= gunzip_test;
- break;
- case 'd': /* Used to convert gzip to gunzip. */
- break;
- default:
- bb_show_usage(); /* exit's inside usage */
- }
+ opt |= GUNZIP_OPT_STDOUT;
}
do {
@@ -116,7 +99,7 @@
if (old_path == NULL || strcmp(old_path, "-") == 0) {
src_fd = fileno(stdin);
- flags |= gunzip_to_stdout;
+ opt |= GUNZIP_OPT_STDOUT;
} else {
src_fd = bb_xopen(old_path, O_RDONLY);
@@ -127,15 +110,15 @@
}
/* Check that the input is sane. */
- if (isatty(src_fd) && ((flags & gunzip_force) == 0)) {
+ if (isatty(src_fd) && ((opt & GUNZIP_OPT_FORCE) == 0)) {
bb_error_msg_and_die
("compressed data not read from terminal. Use -f to force it.");
}
/* Set output filename and number */
- if (flags & gunzip_test) {
+ if (opt & GUNZIP_OPT_TEST) {
dst_fd = bb_xopen("/dev/null", O_WRONLY); /* why does test use filenum 2 ? */
- } else if (flags & gunzip_to_stdout) {
+ } else if (opt & GUNZIP_OPT_STDOUT) {
dst_fd = fileno(stdout);
} else {
char *extension;