unlzma: add "lzma -d" alias, add -t support, rename lzmacat->lzcat
Also coalesce some common strings
text data bss dec hex filename
844110 453 6812 851375 cfdaf busybox_old
844061 453 6812 851326 cfd7e busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/archival/bbunzip.c b/archival/bbunzip.c
index df674bc..1e775f4 100644
--- a/archival/bbunzip.c
+++ b/archival/bbunzip.c
@@ -9,12 +9,12 @@
#include "unarchive.h"
enum {
- OPT_STDOUT = 0x1,
- OPT_FORCE = 0x2,
-/* gunzip and bunzip2 only: */
- OPT_VERBOSE = 0x4,
- OPT_DECOMPRESS = 0x8,
- OPT_TEST = 0x10,
+ OPT_STDOUT = 1 << 0,
+ OPT_FORCE = 1 << 1,
+ /* only some decompressors: */
+ OPT_VERBOSE = 1 << 2,
+ OPT_DECOMPRESS = 1 << 3,
+ OPT_TEST = 1 << 4,
};
static
@@ -333,12 +333,17 @@
int unlzma_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int unlzma_main(int argc UNUSED_PARAM, char **argv)
{
- getopt32(argv, "cf");
- argv += optind;
- /* lzmacat? */
- if (applet_name[4] == 'c')
+ int opts = getopt32(argv, "cfvdt");
+# if ENABLE_FEATURE_LZMA_ALIAS
+ /* lzma without -d or -t? */
+ if (applet_name[2] == 'm' && !(opts & (OPT_DECOMPRESS|OPT_TEST)))
+ bb_show_usage();
+# endif
+ /* lzcat? */
+ if (applet_name[2] == 'c')
option_mask32 |= OPT_STDOUT;
+ argv += optind;
return bbunpack(argv, make_new_name_unlzma, unpack_unlzma);
}
@@ -346,7 +351,7 @@
/*
- * Uncompress applet for busybox (c) 2002 Glenn McGrath
+ * Uncompress applet for busybox (c) 2002 Glenn McGrath
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/