From e14ddc74defe8917ad0bb2d2c28c6c5c0079f6ba Mon Sep 17 00:00:00 2001
From: Kevin Ryde <user42@zip.com.au>
Date: Tue, 6 Jan 2004 23:34:54 +0000
Subject: [PATCH] (scm_aind): Test SCM_CONSP rather than !SCM_NULLP while
 traversing the args list, fixes segv if an improper list is given. Reported
 by Rouben Rostamian.

---
 libguile/unif.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libguile/unif.c b/libguile/unif.c
index f57cce8ce..e89c62f05 100644
--- a/libguile/unif.c
+++ b/libguile/unif.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995,1996,1997,1998,2000,2001,2002 Free Software Foundation, Inc.
+/* Copyright (C) 1995,1996,1997,1998,2000,2001,2002,2004 Free Software Foundation, Inc.
  * 
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -500,7 +500,7 @@ scm_aind (SCM ra, SCM args, const char *what)
 	scm_error_num_args_subr (what);
       return pos + (SCM_INUM (args) - s->lbnd) * (s->inc);
     }
-  while (k && !SCM_NULLP (args))
+  while (k && SCM_CONSP (args))
     {
       ind = SCM_CAR (args);
       args = SCM_CDR (args);