===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/tmux/cmd-command-prompt.c,v
retrieving revision 1.6
retrieving revision 1.7
diff -c -r1.6 -r1.7
*** src/usr.bin/tmux/cmd-command-prompt.c	2009/07/26 12:58:44	1.6
--- src/usr.bin/tmux/cmd-command-prompt.c	2009/08/13 23:44:18	1.7
***************
*** 1,4 ****
! /* $OpenBSD: cmd-command-prompt.c,v 1.6 2009/07/26 12:58:44 nicm Exp $ */
  
  /*
   * Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
--- 1,4 ----
! /* $OpenBSD: cmd-command-prompt.c,v 1.7 2009/08/13 23:44:18 nicm Exp $ */
  
  /*
   * Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
***************
*** 112,118 ****
  	char				*cause, *ptr, *buf, ch;
  	size_t				 len, slen;
  
! 	if (s == NULL)
  		return (0);
  	slen = strlen(s);
  
--- 112,118 ----
  	char				*cause, *ptr, *buf, ch;
  	size_t				 len, slen;
  
! 	if (s == NULL || *s == '\0')
  		return (0);
  	slen = strlen(s);