conntrackd: display help information with `-h'

This patch also adds missing `-v' information to the manpage.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/src/main.c b/src/main.c
index 82f0d27..239e0da 100644
--- a/src/main.c
+++ b/src/main.c
@@ -48,7 +48,8 @@ static const char usage_client_commands[] =
 	"  -n, request resync with other node (only FT-FW and NOTRACK modes)\n"
 	"  -x, dump cache in XML format (requires -i or -e)\n"
 	"  -t, reset the kernel timeout (see PurgeTimeout clause)\n"
-	"  -v, display conntrackd version\n";
+	"  -v, display conntrackd version\n"
+	"  -h, display this help information\n";
 
 static const char usage_options[] =
 	"Options:\n"
@@ -240,6 +241,9 @@ int main(int argc, char *argv[])
 		case 'v':
 			show_version();
 			exit(EXIT_SUCCESS);
+		case 'h':
+			show_usage(argv[0]);
+			exit(EXIT_SUCCESS);
 		default:
 			show_usage(argv[0]);
 			fprintf(stderr, "Unknown option: %s\n", argv[i]);