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libbb: move common code into run_applet_and_exit

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Both calls to run_applet_and_exit are followed by the same code
to print an error message and return status 127.  Remove this
duplication and make run_applet_and_exit static.

function                                             old     new   delta
run_applet_and_exit                                  675     667      -8
main                                                 119      92     -27
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-35)             Total: -35 bytes

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Ron Yorston 2016-06-07 12:12:07 +01:00 committed by Denys Vlasenko
parent ba12081a9e
commit ce824aecf2
2 changed files with 8 additions and 15 deletions
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2
include/libbb.h
View File

@ -1239,8 +1239,6 @@ const struct hwtype *get_hwntype(int type) FAST_FUNC;
#ifndef BUILD_INDIVIDUAL
extern int find_applet_by_name(const char *name) FAST_FUNC;
/* Returns only if applet is not found. */
extern void run_applet_and_exit(const char *name, char **argv) FAST_FUNC;
extern void run_applet_no_and_exit(int a, char **argv) NORETURN FAST_FUNC;
#endif

21
libbb/appletlib.c
View File

@ -52,6 +52,7 @@
#include "usage_compressed.h"
static void run_applet_and_exit(const char *name, char **argv) NORETURN;
#if ENABLE_SHOW_USAGE && !ENABLE_FEATURE_COMPRESS_USAGE
static const char usage_messages[] ALIGN1 = UNPACKED_USAGE;
@ -837,12 +838,6 @@ static int busybox_main(char **argv)
* "#!/bin/busybox"-style wrappers */
applet_name = bb_get_last_path_component_nostrip(argv[0]);
run_applet_and_exit(applet_name, argv);
/*bb_error_msg_and_die("applet not found"); - sucks in printf */
full_write2_str(applet_name);
full_write2_str(": applet not found\n");
/* POSIX: "If a command is not found, the exit status shall be 127" */
exit(127);
}
# endif
@ -884,7 +879,7 @@ void FAST_FUNC run_applet_no_and_exit(int applet_no, char **argv)
exit(applet_main[applet_no](argc, argv));
}
void FAST_FUNC run_applet_and_exit(const char *name, char **argv)
static NORETURN void run_applet_and_exit(const char *name, char **argv)
{
int applet;
@ -896,6 +891,12 @@ void FAST_FUNC run_applet_and_exit(const char *name, char **argv)
applet = find_applet_by_name(name);
if (applet >= 0)
run_applet_no_and_exit(applet, argv);
/*bb_error_msg_and_die("applet not found"); - links in printf */
full_write2_str(applet_name);
full_write2_str(": applet not found\n");
/* POSIX: "If a command is not found, the exit status shall be 127" */
exit(127);
}
#endif /* !defined(SINGLE_APPLET_MAIN) */
@ -968,11 +969,5 @@ int main(int argc UNUSED_PARAM, char **argv)
parse_config_file(); /* ...maybe, if FEATURE_SUID_CONFIG */
run_applet_and_exit(applet_name, argv);
/*bb_error_msg_and_die("applet not found"); - sucks in printf */
full_write2_str(applet_name);
full_write2_str(": applet not found\n");
/* POSIX: "If a command is not found, the exit status shall be 127" */
exit(127);
#endif
}