From 3e211c91a209fd87357e441b33d5e71132010cb3 Mon Sep 17 00:00:00 2001
From: Mark Spencer <markster@digium.com>
Date: Fri, 15 Aug 2003 18:50:49 +0000
Subject: [PATCH] Make sure strncat is > 0
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@1341 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
channels/chan_sip.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index fd5971e0f3..e1727dea98 100755
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -3720,9 +3720,13 @@ static int check_user(struct sip_pvt *p, struct sip_request *req, char *cmd, cha
static int get_msg_text(char *buf, int len, struct sip_request *req)
{
int x;
+ int y;
strcpy(buf, "");
+ y = len - strlen(buf) - 5;
+ if (y < 0)
+ y = 0;
for (x=0;x<req->lines;x++) {
- strncat(buf, req->line[x], len - strlen(buf) - 5);
+ strncat(buf, req->line[x], y);
strcat(buf, "\n");
}
return 0;
--
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