Check for valid hostname lookup in sg_socket.cxx.

2001-07-10 14:13:51 +00:00
parent 76a5950f19
commit a66d1ad855
1 changed files with 4 additions and 0 deletions
--- a/simgear/io/sg_socket.cxx
+++ b/simgear/io/sg_socket.cxx
@@ -132,6 +132,10 @@ SGSocket::SocketType SGSocket::make_client_socket () {

    // get the hosts official name/info
    hp = gethostbyname( hostname.c_str() );
+    if (hp == NULL) {
+	SG_LOG( SG_IO, SG_ALERT, "Error: hostname lookup failed" );
+	return INVALID_SOCKET;
+    }

    // Connect this socket to the host and the port specified on the
    // command line