From: ben <ben@cda61777-01e9-0310-a592-d414129be87e>
Date: Sat, 22 Jan 2005 15:19:21 +0000 (+0000)
Subject: If getaddrinfo() fails, it's not safe to dereference the struct addrinfo* it
X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/commitdiff_plain/ca9892ae355639490e73d485f01cf86c5204276d

If getaddrinfo() fails, it's not safe to dereference the struct addrinfo* it
passes back to us, so don't.


git-svn-id: svn://svn.tartarus.org/sgt/putty@5167 cda61777-01e9-0310-a592-d414129be87e
---

diff --git a/unix/uxnet.c b/unix/uxnet.c
index b7c20cff..8804b09b 100644
--- a/unix/uxnet.c
+++ b/unix/uxnet.c
@@ -713,8 +713,10 @@ Socket sk_newlistener(char *srcaddr, int port, Plug plug, int local_host_only, i
         hints.ai_next = NULL;
         sprintf(portstr, "%d", port);
         retcode = getaddrinfo(srcaddr, portstr, &hints, &ai);
-        addr = ai->ai_addr;
-        addrlen = ai->ai_addrlen;
+	if (retcode = 0) {
+	    addr = ai->ai_addr;
+	    addrlen = ai->ai_addrlen;
+	}
 #else
         memset(&a,'\0',sizeof(struct sockaddr_in));
         a.sin_family = AF_INET;