adduser: check whether run with no USERNAME. Closes 6728

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/loginutils/adduser.c b/loginutils/adduser.c
index dc0244476..ef390adf8 100644
--- a/loginutils/adduser.c
+++ b/loginutils/adduser.c
@@ -162,9 +162,9 @@ int adduser_main(int argc UNUSED_PARAM, char **argv)
         pw.pw_shell = (char *)get_shell_name();
         pw.pw_dir = NULL;
 
-        /* at most two non-option args */
+        /* at least one and at most two non-option args */
         /* disable interactive passwd for system accounts */
-        opt_complementary = "?2:SD:u+";
+        opt_complementary = "-1:?2:SD:u+";
         if (sizeof(pw.pw_uid) == sizeof(int)) {
                 opts = getopt32(argv, "h:g:s:G:DSHu:", &pw.pw_dir, &pw.pw_gecos, &pw.pw_shell, &usegroup, &pw.pw_uid);
         } else {