diff options
Diffstat (limited to 'archival/bunzip2.c')
| -rw-r--r-- | archival/bunzip2.c | 38 |
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); |