adduser: check whether run with no USERNAME. Closes 6728

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

diff --git a/loginutils/adduser.c b/loginutils/adduser.c
index dc02444766378cd11ec395d1bc55aec3a96080d6..ef390adf825e56acb2ca16fbda1ca6bd7d82e99d 100644 (file)
--- 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 {