From 2f2114fbf0b9e06a7dedf2effd954fd417ba79db Mon Sep 17 00:00:00 2001
From: Assar Westerlund <assar@sics.se>
Date: Sun, 8 Oct 2000 13:20:12 +0000
Subject: [PATCH] (krb5_copy_encrypted): check that fds are not too large to
 select on

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@9099 ec53bebd-3082-4978-b11e-865c3cabbd6b
---
 appl/kx/krb5.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/appl/kx/krb5.c b/appl/kx/krb5.c
index 374b55d8d..7cc7345ff 100644
--- a/appl/kx/krb5.c
+++ b/appl/kx/krb5.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1995 - 1999 Kungliga Tekniska Högskolan
+ * Copyright (c) 1995 - 2000 Kungliga Tekniska Högskolan
  * (Royal Institute of Technology, Stockholm, Sweden).
  * All rights reserved.
  * 
@@ -265,6 +265,11 @@ krb5_copy_encrypted (kx_context *kc, int fd1, int fd2)
 	fd_set fdset;
 	int ret;
 
+	if (fd1 >= FD_SETSIZE || fd2 >= FD_SETSIZE) {
+	    warnx ("fd too large");
+	    return 1;
+	}
+
 	FD_ZERO(&fdset);
 	FD_SET(fd1, &fdset);
 	FD_SET(fd2, &fdset);