1 | /*
|
---|
2 | * Modified for busybox by Glenn McGrath <bug1@iinet.net.au>
|
---|
3 | * Added support output to stdout by Thomas Lundquist <thomasez@zelow.no>
|
---|
4 | *
|
---|
5 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
|
---|
6 | */
|
---|
7 |
|
---|
8 | #include <fcntl.h>
|
---|
9 | #include <stdio.h>
|
---|
10 | #include <stdlib.h>
|
---|
11 | #include <string.h>
|
---|
12 | #include <unistd.h>
|
---|
13 |
|
---|
14 | #include "busybox.h"
|
---|
15 | #include "unarchive.h"
|
---|
16 |
|
---|
17 | #define BUNZIP2_OPT_STDOUT 1
|
---|
18 | #define BUNZIP2_OPT_FORCE 2
|
---|
19 |
|
---|
20 | int bunzip2_main(int argc, char **argv)
|
---|
21 | {
|
---|
22 | char *filename;
|
---|
23 | unsigned long opt;
|
---|
24 | int status, src_fd, dst_fd;
|
---|
25 |
|
---|
26 | opt = bb_getopt_ulflags(argc, argv, "cf");
|
---|
27 |
|
---|
28 | /* Set input filename and number */
|
---|
29 | filename = argv[optind];
|
---|
30 | if ((filename) && (filename[0] != '-') && (filename[1] != '\0')) {
|
---|
31 | /* Open input file */
|
---|
32 | src_fd = bb_xopen(filename, O_RDONLY);
|
---|
33 | } else {
|
---|
34 | src_fd = STDIN_FILENO;
|
---|
35 | filename = 0;
|
---|
36 | }
|
---|
37 |
|
---|
38 | /* if called as bzcat force the stdout flag */
|
---|
39 | if ((opt & BUNZIP2_OPT_STDOUT) || bb_applet_name[2] == 'c')
|
---|
40 | filename = 0;
|
---|
41 |
|
---|
42 | /* Check that the input is sane. */
|
---|
43 | if (isatty(src_fd) && (opt & BUNZIP2_OPT_FORCE) == 0) {
|
---|
44 | bb_error_msg_and_die("Compressed data not read from terminal. Use -f to force it.");
|
---|
45 | }
|
---|
46 |
|
---|
47 | if (filename) {
|
---|
48 | struct stat stat_buf;
|
---|
49 | char *extension=filename+strlen(filename)-4;
|
---|
50 | if (strcmp(extension, ".bz2") != 0) {
|
---|
51 | bb_error_msg_and_die("Invalid extension");
|
---|
52 | }
|
---|
53 | xstat(filename, &stat_buf);
|
---|
54 | *extension=0;
|
---|
55 | dst_fd = bb_xopen3(filename, O_WRONLY | O_CREAT, stat_buf.st_mode);
|
---|
56 | } else dst_fd = STDOUT_FILENO;
|
---|
57 | status = uncompressStream(src_fd, dst_fd);
|
---|
58 | if(filename) {
|
---|
59 | if (!status) filename[strlen(filename)]='.';
|
---|
60 | if (unlink(filename) < 0) {
|
---|
61 | bb_error_msg_and_die("Couldn't remove %s", filename);
|
---|
62 | }
|
---|
63 | }
|
---|
64 |
|
---|
65 | return status;
|
---|
66 | }
|
---|
67 | /* vi:set ts=4: */
|
---|