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false: make "false --help" exit with 1

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function                                             old     new   delta
run_applet_no_and_exit                               447     445      -2

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2014-09-18 00:47:05 +02:00
parent d0cdacafa9
commit cd7a38a87d
2 changed files with 35 additions and 8 deletions
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26
libbb/appletlib.c
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@ -745,15 +745,25 @@ void FAST_FUNC run_applet_no_and_exit(int applet_no, char **argv)
/* Reinit some shared global data */
xfunc_error_retval = EXIT_FAILURE;
applet_name = APPLET_NAME(applet_no);
if (argc == 2 && strcmp(argv[1], "--help") == 0) {
/* Special case. POSIX says "test --help"
* should be no different from e.g. "test --foo". */
//TODO: just compare applet_no with APPLET_NO_test
if (!ENABLE_TEST || strcmp(applet_name, "test") != 0) {
/* If you want "foo --help" to return 0: */
xfunc_error_retval = 0;
#if defined APPLET_NO_test
/* Special case. POSIX says "test --help"
* should be no different from e.g. "test --foo".
* Thus for "test", we skip --help check.
*/
if (applet_no != APPLET_NO_test)
#endif
{
if (argc == 2 && strcmp(argv[1], "--help") == 0) {
#if defined APPLET_NO_false
/* Someone insisted that "false --help" must exit 1. Sigh */
if (applet_no != APPLET_NO_false)
#endif
{
/* Make "foo --help" exit with 0: */
xfunc_error_retval = 0;
}
bb_show_usage();
}
}