From a72207ecf039e4c36abeaf64ba00ef36522f3f73 Mon Sep 17 00:00:00 2001
From: Anders Bakken <agbakken@gmail.com>
Date: Mon, 16 Nov 2015 12:50:41 -0800
Subject: [PATCH] getconnectinfo: Don't call recv(2) if socket == -1

Closes #528
---
 lib/connect.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/connect.c b/lib/connect.c
index ece6cf3f6..88041dd80 100644
--- a/lib/connect.c
+++ b/lib/connect.c
@@ -1242,10 +1242,10 @@ curl_socket_t Curl_getconnectinfo(struct SessionHandle *data,
     }
 /* Minix 3.1 doesn't support any flags on recv; just assume socket is OK */
 #ifdef MSG_PEEK
-    else {
+    else if(sockfd != CURL_SOCKET_BAD) {
       /* use the socket */
       char buf;
-      if(recv((RECV_TYPE_ARG1)c->sock[FIRSTSOCKET], (RECV_TYPE_ARG2)&buf,
+      if(recv((RECV_TYPE_ARG1)sockfd, (RECV_TYPE_ARG2)&buf,
               (RECV_TYPE_ARG3)1, (RECV_TYPE_ARG4)MSG_PEEK) == 0) {
         return CURL_SOCKET_BAD;   /* FIN received */
       }