From 4f22c2f5679a823af9387cb724b28ecfefa53eee Mon Sep 17 00:00:00 2001
From: hniksic <devnull@localhost>
Date: Wed, 15 Jun 2005 13:11:50 -0700
Subject: [PATCH] [svn] Handle invalid response to PWD gracefully.

---
 src/ChangeLog   | 4 ++++
 src/ftp-basic.c | 5 +++++
 2 files changed, 9 insertions(+)

diff --git a/src/ChangeLog b/src/ChangeLog
index bc9df474..aff94457 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,7 @@
+2005-06-15  Hrvoje Niksic  <hniksic@xemacs.org>
+
+	* ftp-basic.c (ftp_pwd): Handle malformed PWD response.
+
 2005-06-15  Hrvoje Niksic  <hniksic@xemacs.org>
 
 	* host.h (ip_address): Remove the trailing comma from the type
diff --git a/src/ftp-basic.c b/src/ftp-basic.c
index 3c43b0c1..0dee6d09 100644
--- a/src/ftp-basic.c
+++ b/src/ftp-basic.c
@@ -1081,6 +1081,7 @@ ftp_pwd (int csock, char **pwd)
     return err;
   if (*respline == '5')
     {
+    err:
       xfree (respline);
       return FTPSRVERR;
     }
@@ -1089,6 +1090,10 @@ ftp_pwd (int csock, char **pwd)
      and everything following it. */
   strtok (respline, "\"");
   request = strtok (NULL, "\"");
+  if (!request)
+    /* Treat the malformed response as an error, which the caller has
+       to handle gracefully anyway.  */
+    goto err;
 
   /* Has the `pwd' been already allocated?  Free! */
   xfree_null (*pwd);