nscd: fall back gracefully on kernels without AF_UNIX support

[musl] / src / network / res_send.c

diff --git a/src/network/res_send.c b/src/network/res_send.c
index b9cea0b..ee4abf1 100644 (file)
--- a/src/network/res_send.c
+++ b/src/network/res_send.c
@@ -3,7 +3,7 @@
 int __res_send(const unsigned char *msg, int msglen, unsigned char *answer, int anslen)
 {
        int r = __res_msend(1, &msg, &msglen, &answer, &anslen, anslen);
-       return r<0 ? r : anslen;
+       return r<0 || !anslen ? -1 : anslen;
 }
 
 weak_alias(__res_send, res_send);