* handling.
*
* General cleanup to better adhere to the style guide and make use of standard
- * busybox functions by Glenn McGrath <bug1@optushome.com.au>
- *
+ * busybox functions by Glenn McGrath <bug1@iinet.net.au>
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
#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 {
optind++;
if (old_path == NULL || strcmp(old_path, "-") == 0) {
- src_fd = fileno(stdin);
- flags |= gunzip_to_stdout;
+ src_fd = STDIN_FILENO;
+ opt |= GUNZIP_OPT_STDOUT;
} else {
src_fd = bb_xopen(old_path, O_RDONLY);
}
/* 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) {
- dst_fd = fileno(stdout);
+ } else if (opt & GUNZIP_OPT_STDOUT) {
+ dst_fd = STDOUT_FILENO;
} else {
char *extension;
/* do the decompression, and cleanup */
if (bb_xread_char(src_fd) == 0x1f) {
unsigned char magic2;
-
+
magic2 = bb_xread_char(src_fd);
#ifdef CONFIG_FEATURE_GUNZIP_UNCOMPRESS
if (magic2 == 0x9d) {
status = uncompress(src_fd, dst_fd);
- } else
+ } else
#endif
if (magic2 == 0x8b) {
check_header_gzip(src_fd);
- status = inflate(src_fd, dst_fd);
+ status = inflate_gunzip(src_fd, dst_fd);
if (status != 0) {
bb_error_msg_and_die("Error inflating");
}
- check_trailer_gzip(src_fd);
} else {
bb_error_msg_and_die("Invalid magic");
}
delete_path = new_path;
}
- if (dst_fd != fileno(stdout)) {
+ if (dst_fd != STDOUT_FILENO) {
close(dst_fd);
}
- if (src_fd != fileno(stdin)) {
+ if (src_fd != STDIN_FILENO) {
close(src_fd);
}