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-rw-r--r--llmnrd.c21
1 files changed, 16 insertions, 5 deletions
diff --git a/llmnrd.c b/llmnrd.c
index 80cf6cc..79a237d 100644
--- a/llmnrd.c
+++ b/llmnrd.c
@@ -37,12 +37,13 @@
#include "llmnr.h"
#include "llmnr-packet.h"
-static const char *short_opts = "H:p:dh";
+static const char *short_opts = "H:p:dhV";
static const struct option long_opts[] = {
{ "hostname", required_argument, NULL, 'H' },
{ "port", required_argument, NULL, 'p' },
{ "daemonize", no_argument, NULL, 'd' },
{ "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, 'V' },
{ NULL, 0, NULL, 0 },
};
@@ -53,11 +54,20 @@ static void __noreturn usage_and_exit(int status)
" -H, --hostname <name> set hostname to respond with (default: system hostname)\n"
" -p, --port <number> set port number to listen on (default: %d)\n"
" -d, --daemonize run as daemon in the background\n"
- " -h, --help show this help and exit\n",
+ " -h, --help show this help and exit\n"
+ " -V, --version show version information and exit\n",
LLMNR_UDP_PORT);
exit(status);
}
+static void __noreturn version_and_exit(void)
+{
+ fprintf(stdout, "llmnrd %s\n"
+ "Copyright (C) 2014-2015 Tobias Klauser <tklauser@distanz.ch>\n"
+ "Licensed unter the GNU General Public License, version 2\n", VERSION_STRING);
+ exit(EXIT_SUCCESS);
+}
+
static void signal_handler(int sig)
{
switch (sig) {
@@ -114,11 +124,12 @@ int main(int argc, char **argv)
return EXIT_FAILURE;
}
port = num_arg;
+ case 'V':
+ version_and_exit();
case 'h':
- ret = EXIT_SUCCESS;
- /* fall through */
+ usage_and_exit(EXIT_SUCCESS);
default:
- usage_and_exit(ret);
+ usage_and_exit(EXIT_FAILURE);
}
}