FreeCalypso > hg > themwi-system-sw

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