adduser/addgroup: check username for invalid chars

(by Tito <farmatito AT tiscali.it>). +129 bytes when enabled.

1 files changed, 3 insertions, 0 deletions

diff --git a/loginutils/addgroup.c b/loginutils/addgroup.c
index b25f8171d..367c6b9f0 100644
--- a/loginutils/addgroup.c
+++ b/loginutils/addgroup.c
@@ -173,8 +173,11 @@ int addgroup_main(int argc ATTRIBUTE_UNUSED, char **argv)
 #endif
         } else
 #endif /* ENABLE_FEATURE_ADDUSER_TO_GROUP */
+        {
+                die_if_bad_username(argv[0]);
                 new_group(argv[0], gid);
 
+        }
         /* Reached only on success */
         return EXIT_SUCCESS;
 }