FreeCalypso > hg > themwi-system-sw
view sip-manual-out/bye_in.c @ 152:7176dc850d7a
sip-in hold/retr error handling: simply send BYE
Because we know that the SIP state is CONNECTED at the time of any
such error event, we can call initiate_bye() instead of disconnect_sip(),
and thereby get rid of struct gsm_mncc_cause which will never be used
in this scenario anyway.
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Tue, 11 Oct 2022 16:11:21 -0800 |
parents | 94b5831c017f |
children | f8a33603288f |
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/* * Here we handle incoming BYE requests in the UAS role. */ #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <strings.h> #include "../libsip/parse.h" #include "../libsip/uas_basic.h" #include "../libsip/out_msg.h" extern char call_id[]; static void bye_correct_call(req, ess, sin) struct sip_pkt_rx *req; struct uas_parse_hdrs *ess; struct sockaddr_in *sin; { struct sip_msg_out resp; int rc; printf("Received BYE for our call, responding with 200\n"); start_response_out_msg(&resp, "200 OK"); rc = add_resp_basic_headers(&resp, ess, req->req_method); if (rc < 0) { fprintf(stderr, "sending 200 response: msg length exceeded\n"); return; } out_msg_finish(&resp); sip_tx_packet(&resp, sin); } static void bye_unknown_call(req, ess, sin) struct sip_pkt_rx *req; struct uas_parse_hdrs *ess; struct sockaddr_in *sin; { struct sip_msg_out resp; int rc; printf("Received BYE for unknown call, responding with 481\n"); start_response_out_msg(&resp, "481 Call-ID not found"); rc = add_resp_basic_headers(&resp, ess, req->req_method); if (rc < 0) { fprintf(stderr, "sending 481 response: msg length exceeded\n"); return; } out_msg_finish(&resp); sip_tx_packet(&resp, sin); } void handle_bye_req(req, ess, sin) struct sip_pkt_rx *req; struct uas_parse_hdrs *ess; struct sockaddr_in *sin; { if (!strcmp(ess->call_id, call_id)) bye_correct_call(req, ess, sin); else bye_unknown_call(req, ess, sin); }