From e7daff062f9c5e6ab665859f28e299814696632b Mon Sep 17 00:00:00 2001
From: "Todd C. Miller" <Todd.Miller@sudo.ws>
Date: Mon, 23 Jul 2018 07:23:17 -0600
Subject: [PATCH] Linux getgrouplist(3) returns the number of groups on success
 instead of 0 like BSD.

---
 lib/util/getgrouplist.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/util/getgrouplist.c b/lib/util/getgrouplist.c
index ed4d58231..ce4e6d063 100644
--- a/lib/util/getgrouplist.c
+++ b/lib/util/getgrouplist.c
@@ -97,7 +97,7 @@ sudo_getgrouplist2_v1(const char *name, GETGROUPS_T basegid,
 	    return -1;
 	grpsize <<= 1;
 	ngroups = grpsize;
-	if (getgrouplist(name, basegid, groups, &ngroups) == 0) {
+	if (getgrouplist(name, basegid, groups, &ngroups) != -1) {
 	    *groupsp = groups;
 	    *ngroupsp = ngroups;
 	    return 0;
-- 
2.40.0