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authorGlenn L McGrath2001-11-18 14:20:25 +0000
committerGlenn L McGrath2001-11-18 14:20:25 +0000
commitfff11f1ab7ec7cc67087231361f3bde8ecff115f (patch)
treeef99119582637a44a5a065ac235f6999c85083d8 /archival
parentfedce06b7fa53989df8a7994dcd2b24ed5ccf51a (diff)
downloadbusybox-fff11f1ab7ec7cc67087231361f3bde8ecff115f.zip
busybox-fff11f1ab7ec7cc67087231361f3bde8ecff115f.tar.gz
bzcat and bunzip -c support from Thomas Lundquist
Diffstat (limited to 'archival')
-rw-r--r--archival/bunzip2.c38
1 files changed, 34 insertions, 4 deletions
diff --git a/archival/bunzip2.c b/archival/bunzip2.c
index da9808e..290681d 100644
--- a/archival/bunzip2.c
+++ b/archival/bunzip2.c
@@ -1,4 +1,5 @@
/* Modified for busybox by Glenn McGrath <bug1@optushome.com.au> */
+/* Added support output to stdout by Thomas Lundquist <thomasez@zelow.no> */
/*--
This file is a part of bzip2 and/or libbzip2, a program and
library for lossless, block-sorting data compression.
@@ -56,6 +57,7 @@
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
+#include <getopt.h>
#include <busybox.h>
//#define TRUE 1
@@ -2316,15 +2318,38 @@ errhandler_io:
int bunzip2_main(int argc, char **argv)
{
+ const int bunzip_to_stdout = 1;
+ int flags = 0;
+ int opt = 0;
+
FILE *src_stream;
FILE *dst_stream;
char *save_name;
char *save_name_ptr;
- if (argc != 2) {
+
+ /* if called as bzcat */
+ if (strcmp(applet_name, "bzcat") == 0)
+ flags |= bunzip_to_stdout;
+
+ while ((opt = getopt(argc, argv, "ch")) != -1) {
+ switch (opt) {
+ case 'c':
+ flags |= bunzip_to_stdout;
+ break;
+ case 'h':
+ default:
+ show_usage(); /* exit's inside usage */
+ }
+ }
+
+ save_name = xstrdup(argv[optind]);
+
+ if (save_name == NULL) {
show_usage();
}
- src_stream = xfopen(argv[1], "r");
- save_name = xstrdup(argv[1]);
+
+ src_stream = xfopen(argv[optind], "r");
+
save_name_ptr = strrchr(save_name, '.');
if (save_name_ptr == NULL) {
return(FALSE);
@@ -2333,7 +2358,12 @@ int bunzip2_main(int argc, char **argv)
error_msg("Invalid extension, expected .bz2");
}
*save_name_ptr = '\0';
- dst_stream = xfopen(save_name, "w");
+
+ if (flags & bunzip_to_stdout) {
+ dst_stream = stdout;
+ } else {
+ dst_stream = xfopen(save_name, "w");
+ }
uncompressStream(src_stream, dst_stream);
return(TRUE);