diff --git a/7.0.166 b/7.0.166
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+To: vim-dev@vim.org
+Subject: Patch 7.0.166
+Fcc: outbox
+From: Bram Moolenaar <Bram@moolenaar.net>
+Mime-Version: 1.0
+Content-Type: text/plain; charset=ISO-8859-1
+Content-Transfer-Encoding: 8bit
+------------
+
+Patch 7.0.166
+Problem:    Crash in cscope code when connection could not be opened.
+	    (Kaya Bekiroglu)
+Solution:   Check for the file descriptor to be NULL.
+Files:	    src/if_cscope.c
+
+
+*** ../vim-7.0.165/src/if_cscope.c	Mon Oct 30 22:31:30 2006
+--- src/if_cscope.c	Tue Nov 14 22:04:30 2006
+***************
+*** 1008,1014 ****
+      totmatches = 0;
+      for (i = 0; i < CSCOPE_MAX_CONNECTIONS; i++)
+      {
+! 	if (csinfo[i].fname == NULL)
+  	    continue;
+  
+  	/* send cmd to cscope */
+--- 1008,1014 ----
+      totmatches = 0;
+      for (i = 0; i < CSCOPE_MAX_CONNECTIONS; i++)
+      {
+! 	if (csinfo[i].fname == NULL || csinfo[i].to_fp == NULL)
+  	    continue;
+  
+  	/* send cmd to cscope */
+*** ../vim-7.0.165/src/version.c	Tue Nov 21 11:29:56 2006
+--- src/version.c	Tue Nov 21 11:42:13 2006
+***************
+*** 668,669 ****
+--- 668,671 ----
+  {   /* Add new patch number below this line */
++ /**/
++     166,
+  /**/
+
+-- 
+The greatest lies of all time:
+  (1) The check is in the mail.
+  (2) We have a really challenging assignment for you.
+  (3) I love you.
+  (4) All bugs have been fixed.
+  (5) This won't hurt a bit.
+  (6) Honey, I just need to debug this program and be home in 5 minutes.
+  (7) I have just sent you an e-mail about that.
+  (8) Of course I'll respect you in the morning.
+  (9) I'm from the government, and I'm here to help you.
+
+ /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net   \\\
+///        sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
+\\\        download, build and distribute -- http://www.A-A-P.org        ///
+ \\\            help me help AIDS victims -- http://ICCF-Holland.org    ///