From: Joakim Sindholt <opensource@zhasha.com>
Date: Sat, 3 Apr 2021 10:50:18 +0000 (+0200)
Subject: nscd: fall back gracefully on kernels without AF_UNIX support
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=0ea78a6421322cab24d448670006ee2f99af3ac9;p=musl

nscd: fall back gracefully on kernels without AF_UNIX support
---

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);