X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fmain.c;h=abe556c0d29aac0d1f4ea2a3a38a62e3dc7be4c5;hb=9f7cee5682a4d65d4043854a3ab1a3330ac1022f;hp=adf8ea99458235c7d4c042588c3d82288ffafbd4;hpb=097e97d5b5b6a20d4aab4f66dce4f0bae5c0a689;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/main.c b/src/bin/lttng-sessiond/main.c
index adf8ea994..abe556c0d 100644
--- a/src/bin/lttng-sessiond/main.c
+++ b/src/bin/lttng-sessiond/main.c
@@ -4231,6 +4231,17 @@ 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);
@@ -4414,6 +4425,23 @@ 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;
 }