FreeCalypso > hg > themwi-system-sw

comparison sip-in/mgw_sock.c @ 47:62f39c7cee15

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themwi-sip-in skeleton started
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 06 Sep 2022 20:33:56 -0800
parents
children 02761f1ae5e5
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46:5427b26525cd 47:62f39c7cee15
1 /*
2 * In this module we implement our local socket interface to themwi-mgw.
3 */
4
5 #include <sys/types.h>
6 #include <sys/socket.h>
7 #include <sys/un.h>
8 #include <stdio.h>
9 #include <stdint.h>
10 #include <stdlib.h>
11 #include <syslog.h>
12 #include "../include/tmgw_ctrl.h"
13
14 static char tmgw_socket_pathname[] = "/var/gsm/tmgw_socket";
15
16 int mgw_socket;
17
18 open_tmgw_socket()
19 {
20 struct sockaddr_un sa;
21 unsigned sa_len;
22 int rc;
23
24 mgw_socket = socket(AF_UNIX, SOCK_SEQPACKET, 0);
25 if (mgw_socket < 0) {
26 syslog(LOG_CRIT, "socket(AF_UNIX, SOCK_SEQPACKET, 0): %m");
27 return(-1);
28 }
29 fill_sockaddr_un(tmgw_socket_pathname, &sa, &sa_len);
30 rc = connect(mgw_socket, (struct sockaddr *) &sa, sa_len);
31 if (rc < 0) {
32 syslog(LOG_ERR, "connect to %s: %m", tmgw_socket_pathname);
33 return(-1);
34 }
35 update_max_fd(mgw_socket);
36 return(0);
37 }
38
39 void
40 mgw_socket_select()
41 {
42 struct tmgw_ctrl_resp msg;
43 int rc;
44
45 rc = recv(mgw_socket, &msg, sizeof msg, 0);
46 if (rc < 0) {
47 syslog(LOG_CRIT, "error reading from TMGW socket: %m");
48 exit(1);
49 }
50 if (rc != sizeof(struct tmgw_ctrl_resp)) {
51 syslog(LOG_CRIT,
52 "response packet from TMGW has wrong length: %d bytes",
53 rc);
54 exit(1);
55 }
56 /* processing to be implemented */
57 }