diff options
Diffstat (limited to 'pjsip/src/pjsip-ua/sip_inv.c')
| -rw-r--r-- | pjsip/src/pjsip-ua/sip_inv.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/pjsip/src/pjsip-ua/sip_inv.c b/pjsip/src/pjsip-ua/sip_inv.c index aebd3353..b9bfe896 100644 --- a/pjsip/src/pjsip-ua/sip_inv.c +++ b/pjsip/src/pjsip-ua/sip_inv.c @@ -1743,13 +1743,19 @@ static pj_status_t inv_check_sdp_in_incoming_msg( pjsip_inv_session *inv, } /* Inform application about remote offer. */ - if (mod_inv.cb.on_rx_offer && inv->notify) { (*mod_inv.cb.on_rx_offer)(inv, sdp_info->sdp); } + /* application must have supplied an answer at this point. */ + if (pjmedia_sdp_neg_get_state(inv->neg) != + PJMEDIA_SDP_NEG_STATE_WAIT_NEGO) + { + return PJ_EINVALIDOP; + } + } else if (pjmedia_sdp_neg_get_state(inv->neg) == PJMEDIA_SDP_NEG_STATE_LOCAL_OFFER) { |