X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fmain.c;h=a970012c7fde9fc90464adfd2520add2e6a3a903;hb=6bad3253d952934f18be50e032b3d495e7a54613;hp=81b5e942705d0404673bedaf13695b5f4524332d;hpb=49d21f93659c296425c129bc7722bd8255f5c1b1;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/main.c b/src/bin/lttng-sessiond/main.c
index 81b5e9427..a970012c7 100644
--- a/src/bin/lttng-sessiond/main.c
+++ b/src/bin/lttng-sessiond/main.c
@@ -4246,7 +4246,7 @@ static void usage(void)
 	fprintf(stderr, "      --verbose-consumer             Verbose mode for consumer. Activate DBG() macro.\n");
 	fprintf(stderr, "      --no-kernel                    Disable kernel tracer\n");
 	fprintf(stderr, "      --agent-tcp-port               Agent registration TCP port\n");
-	fprintf(stderr, "  -f  --config                       Load daemon configuration file\n");
+	fprintf(stderr, "  -f  --config PATH                  Load daemon configuration file\n");
 	fprintf(stderr, "  -l  --load PATH                    Load session configuration\n");
 	fprintf(stderr, "      --kmod-probes                  Specify kernel module probes to load\n");
 	fprintf(stderr, "      --extra-kmod-probes            Specify extra kernel module probes to load\n");
@@ -4262,6 +4262,17 @@ static int set_option(int opt, const char *arg, const char *optname)
 {
 	int ret = 0;
 
+	if (arg && arg[0] == '\0') {
+		/*
+		 * This only happens if the value is read from daemon config
+		 * file. This means the option requires an argument and the
+		 * configuration file contains a line such as:
+		 * my_option =
+		 */
+		ret = -EINVAL;
+		goto end;
+	}
+
 	switch (opt) {
 	case 0:
 		fprintf(stderr, "option %s", optname);
@@ -4453,6 +4464,23 @@ static int set_option(int opt, const char *arg, const char *optname)
 		ret = -1;
 	}
 
+end:
+	if (ret == -EINVAL) {
+		const char *opt_name = "unknown";
+		int i;
+
+		for (i = 0; i < sizeof(long_options) / sizeof(struct option);
+			i++) {
+			if (opt == long_options[i].val) {
+				opt_name = long_options[i].name;
+				break;
+			}
+		}
+
+		WARN("Invalid argument provided for option \"%s\", using default value.",
+			opt_name);
+	}
+
 	return ret;
 }
 
@@ -5083,6 +5111,10 @@ int main(int argc, char **argv)
 
 	if (is_root) {
 		rundir = strdup(DEFAULT_LTTNG_RUNDIR);
+		if (!rundir) {
+			ret = -ENOMEM;
+			goto error;
+		}
 
 		/* Create global run dir with root access */
 		ret = create_lttng_rundir(rundir);