su: change error message

We use PAM and if pam_strerror() returns nothing we have no clue why
authentication failed. It's mistake to blame incorrect password if
there are many possible reason...

Addresses: https://github.com/karelzak/util-linux/issues/778
Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/login-utils/su-common.c b/login-utils/su-common.c
index 459e5c0aea79a7bf7266afc96b7c661f75167bac..c6d95d33a5f33fc64bb747f0bb6c889977b81347 100644 (file)
--- a/login-utils/su-common.c
+++ b/login-utils/su-common.c
@@ -735,7 +735,7 @@ static void supam_authenticate(struct su_context *su)
                msg = pam_strerror(su->pamh, rc);
                pam_end(su->pamh, rc);
                sleep(getlogindefs_num("FAIL_DELAY", 1));
-               errx(EXIT_FAILURE, "%s", msg ? msg : _("incorrect password"));
+               errx(EXIT_FAILURE, "%s", msg ? msg : _("authentication failed"));
        }
 }