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From 281a6c6b6eaaf30058b603325e8ded20b99e1456 Mon Sep 17 00:00:00 2001
From: Henning Westerholt <hw@kamailio.org>
Date: Mon, 7 May 2018 09:36:53 +0200
Subject: [PATCH] core: improve to header check guards, str consists of length
and pointer
---
msg_translator.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/core/msg_translator.c b/src/core/msg_translator.c
index 22122768a1..4dd648e874 100644
--- a/msg_translator.c
+++ b/msg_translator.c
@@ -2369,7 +2369,7 @@ char * build_res_buf_from_sip_req( unsigned int code, str *text ,str *new_tag,
case HDR_TO_T:
if (new_tag && new_tag->len) {
to_tag=get_to(msg)->tag_value;
- if ( to_tag.len || to_tag.s )
+ if ( to_tag.len && to_tag.s )
len+=new_tag->len-to_tag.len;
else
len+=new_tag->len+TOTAG_TOKEN_LEN/*";tag="*/;
@@ -2497,7 +2497,7 @@ char * build_res_buf_from_sip_req( unsigned int code, str *text ,str *new_tag,
break;
case HDR_TO_T:
if (new_tag && new_tag->len){
- if (to_tag.s ) { /* replacement */
+ if (to_tag.len && to_tag.s) { /* replacement */
/* before to-tag */
append_str( p, hdr->name.s, to_tag.s-hdr->name.s);
/* to tag replacement */
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