lttng-relayd: show man page with --help and remove usage

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

diff --git a/src/bin/lttng-relayd/main.c b/src/bin/lttng-relayd/main.c
index cc5009940e13cf05b49d5122879bfc24a110a838..b5b56aa0191849c96de4f43969e90c7278492ed5 100644 (file)
--- a/src/bin/lttng-relayd/main.c
+++ b/src/bin/lttng-relayd/main.c
@@ -162,24 +162,6 @@ static struct option long_options[] = {
 
 static const char *config_ignore_options[] = { "help", "config" };
 
-/*
- * usage function on stderr
- */
-static void usage(void)
-{
-       fprintf(stderr, "Usage: %s OPTIONS\n\nOptions:\n", progname);
-       fprintf(stderr, "  -h, --help                Display this usage.\n");
-       fprintf(stderr, "  -d, --daemonize           Start as a daemon.\n");
-       fprintf(stderr, "  -b, --background          Start as a daemon, keeping console open.\n");
-       fprintf(stderr, "  -C, --control-port URL    Control port listening.\n");
-       fprintf(stderr, "  -D, --data-port URL       Data port listening.\n");
-       fprintf(stderr, "  -L, --live-port URL       Live view port listening.\n");
-       fprintf(stderr, "  -o, --output PATH         Output path for traces. Must use an absolute path.\n");
-       fprintf(stderr, "  -v, --verbose             Verbose mode. Activate DBG() macro.\n");
-       fprintf(stderr, "  -g, --group NAME          Specify the tracing group name. (default: tracing)\n");
-       fprintf(stderr, "  -f  --config              Load daemon configuration file\n");
-}
-
 /*
  * Take an option from the getopt output and set it in the right variable to be
  * used later.
@@ -263,7 +245,11 @@ static int set_option(int opt, const char *arg, const char *optname)
                }
                break;
        case 'h':
-               usage();
+               ret = utils_show_man_page(8, "lttng-relayd");
+               if (ret) {
+                       ERR("Cannot view man page lttng-relayd(8)");
+                       perror("exec");
+               }
                exit(EXIT_FAILURE);
        case 'o':
                if (lttng_is_setuid_setgid()) {