make getaddrinfo return error if both host and service name are null

this case is specified as a mandatory ("shall fail") error.

based on patch by Julien Ramseier.

diff --git a/src/network/getaddrinfo.c b/src/network/getaddrinfo.c
index c88d558c49811d249690eeffdf75a2ed9c5c7b4e..b9439f776fcebf41e00ed1e6fff674b7a42ea1be 100644 (file)
--- a/src/network/getaddrinfo.c
+++ b/src/network/getaddrinfo.c
@@ -20,6 +20,8 @@ int getaddrinfo(const char *restrict host, const char *restrict serv, const stru
                } sa;
        } *out;
 
+       if (!host && !serv) return EAI_NONAME;
+
        if (hint) {
                family = hint->ai_family;
                flags = hint->ai_flags;