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Fault tolerant repair. #169

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Fault tolerant repair. #169

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11 changes: 10 additions & 1 deletion libsofia-sip-ua/nua/nua_server.c
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Original file line number Diff line number Diff line change
Expand Up @@ -415,6 +415,7 @@ nua_stack_respond(nua_t *nua, nua_handle_t *nh,
nua_server_request_t *sr;
tagi_t const *t;
msg_t const *request = NULL;
int prack_pending = 0;

t = tl_find_last(tags, nutag_with);

Expand All @@ -425,8 +426,16 @@ nua_stack_respond(nua_t *nua, nua_handle_t *nh,
if (request && sr->sr_request.msg == request)
break;
/* nua_respond() to INVITE can be used without NUTAG_WITH() */
if (!t && sr->sr_method == sip_method_invite)
if (!t && sr->sr_method == sip_method_invite) {
if (prack_pending) {
nua_stack_event(nua, nh, NULL, nua_i_error,
500, "Server Internal Error", NULL);
return;
}
break;
}
else if (!t && sr->sr_method == sip_method_prack)
prack_pending = 1;
}

if (sr == NULL) {
Expand Down