diff options
Diffstat (limited to 'networking/udhcp/dhcpc.c')
| -rw-r--r-- | networking/udhcp/dhcpc.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/networking/udhcp/dhcpc.c b/networking/udhcp/dhcpc.c index d18a963a9..55664abf9 100644 --- a/networking/udhcp/dhcpc.c +++ b/networking/udhcp/dhcpc.c @@ -75,6 +75,35 @@ struct client_config_t client_config = { arp: "\0\0\0\0\0\0", /* appease gcc-3.0 */ }; +#ifndef IN_BUSYBOX +static void __attribute__ ((noreturn)) show_usage(void) +{ + printf( +"Usage: udhcpc [OPTIONS]\n\n" +" -c, --clientid=CLIENTID Client identifier\n" +" -H, --hostname=HOSTNAME Client hostname\n" +" -h Alias for -H\n" +" -f, --foreground Do not fork after getting lease\n" +" -b, --background Fork to background if lease cannot be\n" +" immediately negotiated.\n" +" -i, --interface=INTERFACE Interface to use (default: eth0)\n" +" -n, --now Exit with failure if lease cannot be\n" +" immediately negotiated.\n" +" -p, --pidfile=file Store process ID of daemon in file\n" +" -q, --quit Quit after obtaining lease\n" +" -r, --request=IP IP address to request (default: none)\n" +" -s, --script=file Run file at dhcp events (default:\n" +" " DEFAULT_SCRIPT ")\n" +" -v, --version Display version\n" + ); + exit(0); +} +#else +#define show_usage bb_show_usage +extern void show_usage(void) __attribute__ ((noreturn)); +#endif + + /* just a little helper */ static void change_mode(int new_mode) { @@ -233,7 +262,7 @@ int udhcpc_main(int argc, char *argv[]) return(0); break; default: - bb_show_usage(); + show_usage(); } } |