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Ensure that the number of added contacts never goes below 0. 

This can happen when a REGISTER request is removing a contact.

(closes issue ASTERISK-21911)
Reported by: mdavenport


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@391902 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Joshua Colp 2013-06-14 21:57:31 +00:00
parent b5a10ad972
commit 671d7e62c7
1 changed files with 1 additions and 1 deletions
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2
res/res_sip_registrar.c
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@ -259,7 +259,7 @@ static pj_bool_t registrar_on_rx_request(struct pjsip_rx_data *rdata)
return PJ_TRUE;
}
if (((added - deleted) + (!aor->remove_existing ? ao2_container_count(contacts) : 0)) > aor->max_contacts) {
if ((MAX(added - deleted, 0) + (!aor->remove_existing ? ao2_container_count(contacts) : 0)) > aor->max_contacts) {
/* Enforce the maximum number of contacts */
pjsip_endpt_respond_stateless(ast_sip_get_pjsip_endpoint(), rdata, 403, NULL, NULL, NULL);
return PJ_TRUE;