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comparison test-fsk/reinvite.c @ 2:26383ed8b79f

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test-fsk: starting as a copy of test-voice
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 04 Mar 2024 21:03:19 -0800
parents test-voice/reinvite.c@35c0d9f03c0a
children
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1:38c4d09882f6 2:26383ed8b79f
1 /*
2 * Here we handle incoming INVITE requests in the UAS role: even though
3 * we are strictly outbound, BulkVS servers will send us periodic
4 * re-INVITEs as keepalives, and we have to play along.
5 */
6
7 #include <sys/types.h>
8 #include <sys/socket.h>
9 #include <netinet/in.h>
10 #include <stdio.h>
11 #include <stdlib.h>
12 #include <string.h>
13 #include <strings.h>
14 #include "../libsip/parse.h"
15 #include "../libsip/uas_basic.h"
16 #include "../libsip/out_msg.h"
17
18 extern char call_id[];
19
20 static void
21 invite_correct_call(req, ess, sin)
22 struct sip_pkt_rx *req;
23 struct uas_parse_hdrs *ess;
24 struct sockaddr_in *sin;
25 {
26 struct sip_msg_out resp;
27 int rc;
28
29 printf("Received re-INVITE for our call, responding with 200\n");
30 start_response_out_msg(&resp, "200 OK");
31 rc = add_resp_basic_headers(&resp, ess, req->req_method);
32 if (rc < 0) {
33 fprintf(stderr, "sending 200 response: msg length exceeded\n");
34 return;
35 }
36 out_msg_finish(&resp);
37 sip_tx_packet(&resp, sin);
38 }
39
40 static void
41 invite_unknown_call(req, ess, sin)
42 struct sip_pkt_rx *req;
43 struct uas_parse_hdrs *ess;
44 struct sockaddr_in *sin;
45 {
46 struct sip_msg_out resp;
47 int rc;
48
49 printf("Received INVITE for unknown call, responding with 405\n");
50 start_response_out_msg(&resp, "405 This gateway is outbound only");
51 rc = add_resp_basic_headers(&resp, ess, req->req_method);
52 if (rc < 0) {
53 fprintf(stderr, "sending 405 response: msg length exceeded\n");
54 return;
55 }
56 out_msg_finish(&resp);
57 sip_tx_packet(&resp, sin);
58 }
59
60 void
61 handle_invite_req(req, ess, sin)
62 struct sip_pkt_rx *req;
63 struct uas_parse_hdrs *ess;
64 struct sockaddr_in *sin;
65 {
66 if (!strcmp(ess->call_id, call_id))
67 invite_correct_call(req, ess, sin);
68 else
69 invite_unknown_call(req, ess, sin);
70 }