From: Serge Hallyn <serge@hallyn.com>
Date: Fri, 1 Jan 2021 19:10:12 +0000 (-0600)
Subject: useradd: don't try to create 0 subuids
X-Git-Tag: v4.9~39^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=refs%2Fpull%2F306%2Fhead;p=thirdparty%2Fshadow.git

useradd: don't try to create 0 subuids

Closes #289

Signed-off-by: Serge Hallyn <serge@hallyn.com>
---

diff --git a/src/useradd.c b/src/useradd.c
index 1dbbcf3d9..a0369cd87 100644
--- a/src/useradd.c
+++ b/src/useradd.c
@@ -2581,7 +2581,7 @@ int main (int argc, char **argv)
 	}
 
 #ifdef ENABLE_SUBIDS
-	if (is_sub_uid) {
+	if (is_sub_uid && sub_uid_count != 0) {
 		if (find_new_sub_uids(&sub_uid_start, &sub_uid_count) < 0) {
 			fprintf (stderr,
 			         _("%s: can't create subordinate user IDs\n"),
@@ -2589,7 +2589,7 @@ int main (int argc, char **argv)
 			fail_exit(E_SUB_UID_UPDATE);
 		}
 	}
-	if (is_sub_gid) {
+	if (is_sub_gid && sub_gid_count != 0) {
 		if (find_new_sub_gids(&sub_gid_start, &sub_gid_count) < 0) {
 			fprintf (stderr,
 			         _("%s: can't create subordinate group IDs\n"),