From: simon <simon@cda61777-01e9-0310-a592-d414129be87e>
Date: Mon, 13 Aug 2001 12:43:29 +0000 (+0000)
Subject: Fix potential segfault in port forwarding code
X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/commitdiff_plain/5f2e19fcf977f48387d918948aa3ed66748208b0?hp=875b193f2f7c9b4168d63a274861c4a1d980c286

Fix potential segfault in port forwarding code


git-svn-id: svn://svn.tartarus.org/sgt/putty@1184 cda61777-01e9-0310-a592-d414129be87e
---

diff --git a/portfwd.c b/portfwd.c
index 76531fb3..4d77ae17 100644
--- a/portfwd.c
+++ b/portfwd.c
@@ -248,8 +248,6 @@ void pfd_close(Socket s)
  */
 void pfd_send(Socket s, char *data, int len)
 {
-    struct PFwdPrivate *pr = (struct PFwdPrivate *) sk_get_private_ptr(s);
-
     if (s == NULL)
 	return;
 
@@ -259,11 +257,12 @@ void pfd_send(Socket s, char *data, int len)
 
 void pfd_confirm(Socket s)
 {
-    struct PFwdPrivate *pr = (struct PFwdPrivate *) sk_get_private_ptr(s);
+    struct PFwdPrivate *pr;
 
     if (s == NULL)
 	return;
 
+    pr = (struct PFwdPrivate *) sk_get_private_ptr(s);
     pr->ready = 1;
     sk_set_frozen(s, 0);
     sk_write(s, NULL, 0);