Fix for possible crashes in src/utilunix.c

["Andrew V. Samoilov" <kai cmail ru>]

Hi, Pavel!

This patch fixes 2 possible buffer overflows in the mc.
Test case:
1. Be sure there is no %d file in the current directory.
2. Type M-!
3. Type "gzip %d" and press Enter.

'%s' can crash your mc.

P.S. Please commit this patch, I have not access to cvs now.

src/ChangeLog:

* utilunix.c (close_error_pipe): Use "%s" in message () to prevent
possible crash.
(check_error_pipe): Likewise.

--- src/utilunix.c	Tue Mar 19 17:36:45 2002
+++ src/utilunix.c	Mon Jul  1 16:37:53 2002
@@ -401,7 +401,7 @@ close_error_pipe (int error, char *text)
 	if (len == 0) return 0;	/* Nothing to show */
 
 	/* Show message from pipe */
-	message (error, title, msg);
+	message (error, title, "%s", msg);
     } else {
 	/* Show given text and possible message from pipe */
 	message (error, title, " %s \n %s ", text, msg);
@@ -435,9 +435,9 @@ void check_error_pipe (void)
 	close (error_pipe[0]);
     }
     if (len > 0)
-        message (0, _(" Warning "), error);
+        message (0, _(" Warning "), "%s", error);
 }
-#endif
+#endif /* !VFS_STANDALONE */
 
 static struct sigaction ignore, save_intr, save_quit, save_stop;