[sr-dev] git:4.1: uac: safety check to be sure the reg hash table is initialized

[Daniel-Constantin Mierla]

Module: sip-router
Branch: 4.1
Commit: 35d83b91a8654a2218bf1ba900d7486fad189851
URL:    http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=35d83b91a8654a2218bf1ba900d7486fad189851

Author: Daniel-Constantin Mierla <miconda at gmail.com>
Committer: Daniel-Constantin Mierla <miconda at gmail.com>
Date:   Wed Apr  9 18:49:32 2014 +0200

uac: safety check to be sure the reg hash table is initialized

- reported by Alex Villacís Lasso

(cherry picked from commit b1900f66cc4acd254f1e6750538f31a3653fcd7f)

---

 modules/uac/uac_reg.c |   27 +++++++++++++++++++++++++++
 1 files changed, 27 insertions(+), 0 deletions(-)

diff --git a/modules/uac/uac_reg.c b/modules/uac/uac_reg.c
index 537ba82..8ab204f 100644
--- a/modules/uac/uac_reg.c
+++ b/modules/uac/uac_reg.c
@@ -236,6 +236,12 @@ int reg_ht_add_byuuid(reg_uac_t *reg)
 	unsigned int slot;
 	reg_item_t *ri = NULL;
 
+	if(_reg_htable==NULL)
+	{
+		LM_ERR("reg hash table not initialized\n");
+		return -1;
+	}
+
 	ri = (reg_item_t*)shm_malloc(sizeof(reg_item_t));
 	if(ri==NULL)
 	{
@@ -259,6 +265,12 @@ int reg_ht_add_byuser(reg_uac_t *reg)
 	unsigned int slot;
 	reg_item_t *ri = NULL;
 
+	if(_reg_htable==NULL)
+	{
+		LM_ERR("reg hash table not initialized\n");
+		return -1;
+	}
+
 	ri = (reg_item_t*)shm_malloc(sizeof(reg_item_t));
 	if(ri==NULL)
 	{
@@ -346,6 +358,12 @@ reg_uac_t *reg_ht_get_byuuid(str *uuid)
 	unsigned int slot;
 	reg_item_t *it = NULL;
 
+	if(_reg_htable==NULL)
+	{
+		LM_ERR("reg hash table not initialized\n");
+		return NULL;
+	}
+
 	hash = reg_compute_hash(uuid);
 	slot = reg_get_entry(hash, _reg_htable->htsize);
 	it = _reg_htable->entries[slot].byuuid;
@@ -370,6 +388,12 @@ reg_uac_t *reg_ht_get_byuser(str *user, str *domain)
 	unsigned int slot;
 	reg_item_t *it = NULL;
 
+	if(_reg_htable==NULL)
+	{
+		LM_ERR("reg hash table not initialized\n");
+		return NULL;
+	}
+
 	hash = reg_compute_hash(user);
 	slot = reg_get_entry(hash, _reg_htable->htsize);
 	it = _reg_htable->entries[slot].byuser;
@@ -740,6 +764,9 @@ void uac_reg_timer(unsigned int ticks)
 	reg_item_t *it = NULL;
 	time_t tn;
 
+	if(_reg_htable==NULL)
+		return;
+
 	tn = time(NULL);
 	for(i=0; i<_reg_htable->htsize; i++)
 	{