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shell: make standalone shell tab-complete "busybox"

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function                                             old     new   delta
busybox_main                                           -     624    +624
packed_usage                                       31758   31777     +19
applet_names                                        2638    2646      +8
applet_main                                         1528    1532      +4
applet_install_loc                                   191     192      +1
run_applet_and_exit                                  681      78    -603
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 4/1 up/down: 656/-603)           Total: 53 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2017-07-29 00:59:24 +02:00
parent be366e5afa
commit f128bdbbd7
2 changed files with 21 additions and 6 deletions
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23
libbb/appletlib.c
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@ -760,11 +760,26 @@ static void install_links(const char *busybox UNUSED_PARAM,
} }
# endif # endif
# if ENABLE_BUSYBOX
static void run_applet_and_exit(const char *name, char **argv) NORETURN; static void run_applet_and_exit(const char *name, char **argv) NORETURN;
/* If we were called as "busybox..." */ # if ENABLE_BUSYBOX
static int busybox_main(char **argv) # if ENABLE_FEATURE_SH_STANDALONE && ENABLE_FEATURE_TAB_COMPLETION
/*
* Insert "busybox" into applet table as well.
* This makes standalone shell tab-complete this name too.
* (Otherwise having "busybox" in applet table is not necessary,
* there is other code which routes "busyboxANY_SUFFIX" name
* to busybox_main()).
*/
//usage:#define busybox_trivial_usage NOUSAGE_STR
//usage:#define busybox_full_usage ""
//applet:IF_BUSYBOX(IF_FEATURE_SH_STANDALONE(IF_FEATURE_TAB_COMPLETION(APPLET(busybox, BB_DIR_BIN, BB_SUID_MAYBE))))
int busybox_main(int argc, char *argv[]) MAIN_EXTERNALLY_VISIBLE;
# else
# define busybox_main(argc,argv) busybox_main(argv)
static
# endif
int busybox_main(int argc UNUSED_PARAM, char **argv)
{ {
if (!argv[1]) { if (!argv[1]) {
/* Called without arguments */ /* Called without arguments */
@ -937,7 +952,7 @@ static NORETURN void run_applet_and_exit(const char *name, char **argv)
{ {
# if ENABLE_BUSYBOX # if ENABLE_BUSYBOX
if (is_prefixed_with(name, "busybox")) if (is_prefixed_with(name, "busybox"))
exit(busybox_main(argv)); exit(busybox_main(/*unused:*/ 0, argv));
# endif # endif
# if NUM_APPLETS > 0 # if NUM_APPLETS > 0
/* find_applet_by_name() search is more expensive, so goes second */ /* find_applet_by_name() search is more expensive, so goes second */