FreeCalypso > hg > themwi-system-sw

comparison sip-manual-out/uas.c @ 71:d74b545a3c2a

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sip-manual-out: new test program
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 20 Sep 2022 10:14:18 -0800
parents sip-in/sip_uas.c@8cf85edca543
children dd845c4933e1
comparison
equal deleted inserted replaced
70:47976db01894 71:d74b545a3c2a
1 /*
2 * UAS for sip-manual-out.
3 */
4
5 #include <sys/types.h>
6 #include <sys/socket.h>
7 #include <netinet/in.h>
8 #include <stdio.h>
9 #include <stdlib.h>
10 #include <string.h>
11 #include <strings.h>
12 #include "../libsip/parse.h"
13 #include "../libsip/uas_basic.h"
14 #include "../libsip/out_msg.h"
15
16 extern char call_id[];
17
18 static void
19 bye_correct_call(req, ess, sin)
20 struct sip_pkt_rx *req;
21 struct uas_parse_hdrs *ess;
22 struct sockaddr_in *sin;
23 {
24 struct sip_msg_out resp;
25 int rc;
26
27 printf("Received BYE for our call, responding with 200\n");
28 start_response_out_msg(&resp, "200 OK");
29 rc = add_resp_basic_headers(&resp, ess, req->req_method);
30 if (rc < 0) {
31 fprintf(stderr, "sending 200 response: msg length exceeded\n");
32 return;
33 }
34 out_msg_finish(&resp);
35 sip_tx_packet(&resp, sin);
36 }
37
38 static void
39 bye_unknown_call(req, ess, sin)
40 struct sip_pkt_rx *req;
41 struct uas_parse_hdrs *ess;
42 struct sockaddr_in *sin;
43 {
44 struct sip_msg_out resp;
45 int rc;
46
47 printf("Received BYE for unknown call, responding with 481\n");
48 start_response_out_msg(&resp, "481 Call-ID not found");
49 rc = add_resp_basic_headers(&resp, ess, req->req_method);
50 if (rc < 0) {
51 fprintf(stderr, "sending 481 response: msg length exceeded\n");
52 return;
53 }
54 out_msg_finish(&resp);
55 sip_tx_packet(&resp, sin);
56 }
57
58 static void
59 handle_bye(req, ess, sin)
60 struct sip_pkt_rx *req;
61 struct uas_parse_hdrs *ess;
62 struct sockaddr_in *sin;
63 {
64 if (!strcmp(ess->call_id, call_id))
65 bye_correct_call(req, ess, sin);
66 else
67 bye_unknown_call(req, ess, sin);
68 }
69
70 static void
71 unsupported_method(req, ess, sin)
72 struct sip_pkt_rx *req;
73 struct uas_parse_hdrs *ess;
74 struct sockaddr_in *sin;
75 {
76 struct sip_msg_out resp;
77 int rc;
78
79 printf("SIP %.16s request: unsupported method\n", req->req_method);
80 start_response_out_msg(&resp, "501 Method not supported");
81 rc = add_resp_basic_headers(&resp, ess, req->req_method);
82 if (rc < 0) {
83 too_long: fprintf(stderr,
84 "sending 501 error: response length exceeded\n");
85 return;
86 }
87 rc = out_msg_add_header(&resp, "Allow", "BYE");
88 if (rc < 0)
89 goto too_long;
90 out_msg_finish(&resp);
91 sip_tx_packet(&resp, sin);
92 }
93
94 void
95 process_sip_request(msg, sin)
96 struct sip_pkt_rx *msg;
97 struct sockaddr_in *sin;
98 {
99 struct uas_parse_hdrs ess;
100 int rc;
101
102 rc = uas_get_basic_headers(msg, &ess);
103 if (rc < 0) {
104 printf("SIP %.16s request: bad or missing %s header\n",
105 msg->req_method, ess.error_field);
106 return;
107 }
108 /* dispatch by method */
109 if (!strcmp(msg->req_method, "BYE"))
110 handle_bye(msg, &ess, sin);
111 else
112 unsupported_method(msg, &ess, sin);
113 }