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Fix potential crash (rare)

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This commit is contained in:
Simon Morlat 2018-06-07 19:43:55 +02:00
parent 1325fbe088
commit 3a62d27f72
1 changed files with 7 additions and 1 deletions
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8
src/sal/op.cpp
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@ -459,11 +459,17 @@ int SalOp::getAddressFamily() const {
if (mRefresher) {
belle_sip_response_t *resp = belle_sip_transaction_get_response(tr);
belle_sip_header_via_t *via = resp ?belle_sip_message_get_header_by_type(resp,belle_sip_header_via_t):NULL;
const char *host;
if (!via){
ms_error("Unable to determine IP version from signaling operation, no via header found.");
return AF_UNSPEC;
}
return (strchr(belle_sip_header_via_get_host(via),':') != NULL) ? AF_INET6 : AF_INET;
host = belle_sip_header_via_get_host(via);
if (!host){
ms_error("Unable to determine IP version from signaling operation, no via header is not yet completed.");
return AF_UNSPEC;
}
return (strchr(host,':') != NULL) ? AF_INET6 : AF_INET;
} else {
belle_sip_request_t *req = belle_sip_transaction_get_request(tr);
contact=(belle_sip_header_address_t*)belle_sip_message_get_header_by_type(req,belle_sip_header_contact_t);