1 files changed, 3 insertions, 5 deletions

diff --git a/src/firejail/util.c b/src/firejail/util.c
index 9b9308670..93eabec65 100644
--- a/src/firejail/util.c
+++ b/src/firejail/util.c
@@ -419,20 +419,18 @@ char *split_comma(char *str) {
 }
 
 
-int not_unsigned(const char *str) {
+void check_unsigned(const char *str, const char *msg) {
         EUID_ASSERT();
 
         int rv = 0;
         const char *ptr = str;
         while (*ptr != ' ' && *ptr != '\t' && *ptr != '\0') {
                 if (!isdigit(*ptr)) {
-                        rv = 1;
-                        break;
+                        fprintf(stderr, "%s %s\n", msg, str);
+                        exit(1);
                 }
                 ptr++;
         }
-
-        return rv;
 }