From: Vito Caputo <vcaputo@pengaru.com>
Date: Sat, 3 Feb 2018 11:09:08 +0000 (-0800)
Subject: socket-util: fix getpeergroups() assert(fd) (#8080)
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=f8c5502be0b2ab4f9fbea45ae6825b8f74450dd3;p=elogind.git

socket-util: fix getpeergroups() assert(fd) (#8080)

Don't assert on zero-value fds.

Fixes #8075.

(cherry picked from commit 75f40779607ea79f20441c7fb46744d04ee2c7ae)
---

diff --git a/src/basic/socket-util.c b/src/basic/socket-util.c
index d89136b01..007b302e7 100644
--- a/src/basic/socket-util.c
+++ b/src/basic/socket-util.c
@@ -1036,7 +1036,7 @@ int getpeergroups(int fd, gid_t **ret) {
         socklen_t n = sizeof(gid_t) * 64;
         _cleanup_free_ gid_t *d = NULL;
 
-        assert(fd);
+        assert(fd >= 0);
         assert(ret);
 
         for (;;) {