Fix memory leaks in redirecting structures in chan_sip.c

Thanks to Richard for pointing this out.

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@263810 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index d0a8766590df21b63d1d35cfc985298194c2c193..115426b5bcefa361ed6c2b54f8aa92d7a02248ab 100644 (file)
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -17535,7 +17535,12 @@ static void change_redirecting_information(struct sip_pvt *p, struct sip_request
                ast_debug(3, "Got redirecting from name %s\n", redirecting_from_name);
                redirecting->from.name = redirecting_from_name;
        }
-       redirecting->from.tag = (char *) p->cid_tag;
+       if (!ast_strlen_zero(p->cid_tag)) {
+               if (redirecting->from.tag) {
+                       ast_free(redirecting->from.tag);
+               }
+               redirecting->from.tag = ast_strdup(p->cid_tag);
+       }
        if (!ast_strlen_zero(redirecting_to_number)) {
                if (redirecting->to.number) {
                        ast_free(redirecting->to.number);
@@ -17929,6 +17934,7 @@ static void handle_response_invite(struct sip_pvt *p, int resp, const char *rest
                        struct ast_party_redirecting redirecting = {{0,},};
                        change_redirecting_information(p, req, &redirecting, FALSE);
                        ast_channel_queue_redirecting_update(p->owner, &redirecting);
+                       ast_party_redirecting_free(&redirecting);
                        sip_handle_cc(p, req, AST_CC_CCNR);
                }
                check_pendings(p);
@@ -18902,6 +18908,7 @@ static void handle_response(struct sip_pvt *p, int resp, const char *rest, struc
                                        struct ast_party_redirecting redirecting = {{0,},};
                                        change_redirecting_information(p, req, &redirecting, TRUE);
                                        ast_channel_set_redirecting(p->owner, &redirecting);
+                                       ast_party_redirecting_free(&redirecting);
                                }
                                        /* Fall through */
                                case 486: /* Busy here */
@@ -20490,7 +20497,6 @@ static int handle_request_invite(struct sip_pvt *p, struct sip_request *req, int
        if (!p->lastinvite && !req->ignore && !p->owner) {
                /* This is a new invite */
                /* Handle authentication if this is our first invite */
-               struct ast_party_redirecting redirecting = {{0,},};
                int cc_recall_core_id = -1;
                set_pvt_allowed_methods(p, req);
                res = check_user(p, req, SIP_INVITE, e, XMIT_RELIABLE, sin);
@@ -20560,7 +20566,6 @@ static int handle_request_invite(struct sip_pvt *p, struct sip_request *req, int
                        goto request_invite_cleanup;
                }
                gotdest = get_destination(p, NULL, &cc_recall_core_id); /* Get destination right away */
-               change_redirecting_information(p, req, &redirecting, FALSE); /*Will return immediately if no Diversion header is present */
                extract_uri(p, req);                    /* Get the Contact URI */
                build_contact(p);                       /* Build our contact header */
 
@@ -20607,9 +20612,12 @@ static int handle_request_invite(struct sip_pvt *p, struct sip_request *req, int
                        build_route(p, req, 0);
 
                        if (c) {
+                               struct ast_party_redirecting redirecting = { { 0, }, };
                                /* Pre-lock the call */
                                ast_channel_lock(c);
+                               change_redirecting_information(p, req, &redirecting, FALSE); /*Will return immediately if no Diversion header is present */
                                ast_channel_set_redirecting(c, &redirecting);
+                               ast_party_redirecting_free(&redirecting);
                        }
                }
        } else {
@@ -20627,6 +20635,7 @@ static int handle_request_invite(struct sip_pvt *p, struct sip_request *req, int
                if (c) {
                        ast_channel_set_redirecting(c, &redirecting);
                }
+               ast_party_redirecting_free(&redirecting);
        }
 
        /* Session-Timers */