From 0ea78a6421322cab24d448670006ee2f99af3ac9 Mon Sep 17 00:00:00 2001
From: Joakim Sindholt <opensource@zhasha.com>
Date: Sat, 3 Apr 2021 12:50:18 +0200
Subject: nscd: fall back gracefully on kernels without AF_UNIX support

---
 src/passwd/nscd_query.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/passwd/nscd_query.c b/src/passwd/nscd_query.c
index d38e371b..dc3406b8 100644
--- a/src/passwd/nscd_query.c
+++ b/src/passwd/nscd_query.c
@@ -40,7 +40,15 @@ retry:
 	buf[0] = NSCDVERSION;
 
 	fd = socket(PF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0);
-	if (fd < 0) return NULL;
+	if (fd < 0) {
+		if (errno == EAFNOSUPPORT) {
+			f = fopen("/dev/null", "re");
+			if (f)
+				errno = errno_save;
+			return f;
+		}
+		return 0;
+	}
 
 	if(!(f = fdopen(fd, "r"))) {
 		close(fd);
-- 
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