diff options
| -rw-r--r-- | login-utils/sulogin.c | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/login-utils/sulogin.c b/login-utils/sulogin.c index def733658..628329cc4 100644 --- a/login-utils/sulogin.c +++ b/login-utils/sulogin.c @@ -50,6 +50,8 @@ # include <selinux/get_context_list.h> #endif +#include "c.h" +#include "nls.h" #include "pathnames.h" static int timeout; @@ -398,9 +400,20 @@ static void sushell(struct passwd *pwd) perror("/bin/sh"); } -static void usage(void) +static void usage(FILE *out) { - fprintf(stderr, "Usage: sulogin [-e] [-p] [-t timeout] [tty device]\n"); + fprintf(out, USAGE_HEADER); + fprintf(out, _( + " %s [options] [tty device]\n"), program_invocation_short_name); + + fprintf(out, USAGE_OPTIONS); + fprintf(out, _( + " -p start a login shell\n" + " -t SEC set max time to wait for a password (default: no limit)\n" + " -e examine shadow files directly if getpwnam(3) fails\n" + " -h display this help message\n")); + + fprintf(out, _("\nFor more information see sulogin(8).\n")); } int main(int argc, char **argv) @@ -417,7 +430,7 @@ int main(int argc, char **argv) * See if we have a timeout flag. */ opterr = 0; - while ((c = getopt(argc, argv, "ept:")) != EOF) { + while ((c = getopt(argc, argv, "ehpt:")) != EOF) { switch(c) { case 't': timeout = atoi(optarg); @@ -428,8 +441,11 @@ int main(int argc, char **argv) case 'e': opt_e = 1; break; + case 'h': + usage(stdout); + return 0; default: - usage(); + usage(stderr); /* Do not exit! */ break; } |