[sr-dev] git:3.1: topoh: more verbose err reporting during init

[Daniel-Constantin Mierla]

Module: sip-router
Branch: 3.1
Commit: c9576754926602aa09f5e464a5278c41b608779c
URL:    http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=c9576754926602aa09f5e464a5278c41b608779c

Author: Daniel-Constantin Mierla <miconda at gmail.com>
Committer: Daniel-Constantin Mierla <miconda at gmail.com>
Date:   Fri Nov 26 09:54:04 2010 +0100

topoh: more verbose err reporting during init

- check also if mask ip != local ip
- should prevent the crashes when mask ip == local ip
(cherry picked from commit 11ea0c4de66e40bfa1ba03a351f7ec6bc5f0fbfc)

---

 modules/topoh/topoh_mod.c |   20 +++++++++++++++++++-
 1 files changed, 19 insertions(+), 1 deletions(-)

diff --git a/modules/topoh/topoh_mod.c b/modules/topoh/topoh_mod.c
index a1f3fd2..87a8a13 100644
--- a/modules/topoh/topoh_mod.c
+++ b/modules/topoh/topoh_mod.c
@@ -42,6 +42,7 @@
 #include "../../events.h"
 #include "../../dprint.h"
 #include "../../ut.h"
+#include "../../forward.h"
 #include "../../parser/msg_parser.h"
 #include "../../parser/parse_to.h"
 #include "../../parser/parse_from.h"
@@ -110,6 +111,16 @@ static int mod_init(void)
 {
 	th_cookie_name.len = strlen(th_cookie_name.s);
 	th_ip.len = strlen(th_ip.s);
+	if(th_ip.len<=0)
+	{
+		LM_ERR("mask IP parameter is invalid\n");
+		goto error;
+	}
+	if(check_self(&th_ip, 0, 0)==1)
+	{
+		LM_ERR("mask IP must be different than SIP server local IP\n");
+		goto error;
+	}
 	th_uparam_name.len = strlen(th_uparam_name.s);
 	th_uparam_prefix.len = strlen(th_uparam_prefix.s);
 	th_vparam_name.len = strlen(th_vparam_name.s);
@@ -121,18 +132,25 @@ static int mod_init(void)
 		+ th_vparam_prefix.len;
 	th_via_prefix.s = (char*)pkg_malloc(th_via_prefix.len+1);
 	if(th_via_prefix.s==NULL)
+	{
+		LM_ERR("via prefix parameter is invalid\n");
 		goto error;
+	}
 	/* 'sip:' + ip + ';' + param + '=' + prefix (+ '\0') */
 	th_uri_prefix.len = 4 + th_ip.len + 1 + th_uparam_name.len + 1
 		+ th_uparam_prefix.len;
 	th_uri_prefix.s = (char*)pkg_malloc(th_uri_prefix.len+1);
 	if(th_uri_prefix.s==NULL)
+	{
+		LM_ERR("uri prefix parameter is invalid\n");
 		goto error;
+	}
 	/* build via prefix */
 	memcpy(th_via_prefix.s, "SIP/2.0/UDP ", 12);
 	memcpy(th_via_prefix.s+12, th_ip.s, th_ip.len);
 	th_via_prefix.s[12+th_ip.len] = ';';
-	memcpy(th_via_prefix.s+12+th_ip.len+1, th_vparam_name.s, th_vparam_name.len);
+	memcpy(th_via_prefix.s+12+th_ip.len+1, th_vparam_name.s,
+			th_vparam_name.len);
 	th_via_prefix.s[12+th_ip.len+1+th_vparam_name.len] = '=';
 	memcpy(th_via_prefix.s+12+th_ip.len+1+th_vparam_name.len+1,
 			th_vparam_prefix.s, th_vparam_prefix.len);