From ab8354ee2fdd65813ce073ac4f062714f8f7c01c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Love=20H=C3=B6rnquist=20=C3=85strand?= <lha@kth.se>
Date: Fri, 14 Apr 2006 14:19:36 +0000
Subject: [PATCH] (DES_cfb64_encrypt): add asserts that the *num pointers is >=
 0, because if it is, its a programmer error.

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@17065 ec53bebd-3082-4978-b11e-865c3cabbd6b
---
 lib/des/des.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/des/des.c b/lib/des/des.c
index e115f936d..43d96142f 100644
--- a/lib/des/des.c
+++ b/lib/des/des.c
@@ -52,6 +52,7 @@ RCSID("$Id$");
 #include <stdlib.h>
 #include <string.h>
 #include <krb5-types.h>
+#include <assert.h>
 
 #include "des.h"
 #include "ui.h"
@@ -514,6 +515,7 @@ DES_cfb64_encrypt(const void *in, void *out,
 
     if (forward_encrypt) {
 	int i = *num;
+	assert(i >= 0);
 
 	while (length > 0) {
 	    if (i == 0)
@@ -535,6 +537,7 @@ DES_cfb64_encrypt(const void *in, void *out,
     } else {
 	int i = *num;
 	unsigned char c;
+	assert(i >= 0);
 
 	while (length > 0) {
 	    if (i == 0) {