FreeCalypso > hg > themwi-system-sw

annotate sip-in/main.c @ 65:7c0309df59f8

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sip-in: handling of ALERTING state
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 18 Sep 2022 15:44:22 -0800
parents 7005d5c535e8
children 709b78a4ebf0
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1 /*
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2 * Main module for themwi-sip-in.
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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/time.h>
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7 #include <sys/errno.h>
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8 #include <stdio.h>
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9 #include <stdlib.h>
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10 #include <string.h>
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11 #include <strings.h>
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12 #include <signal.h>
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13 #include <syslog.h>
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14 #include <unistd.h>
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15
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16 extern int mgw_socket, sip_socket;
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17 extern int gsm_socket, gsm_is_connected;
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18
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19 static int max_fd;
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20
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21 struct timeval cur_event_time;
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22
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23 update_max_fd(newfd)
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24 {
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25 if (newfd > max_fd)
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26 max_fd = newfd;
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27 }
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28
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29 main(argc, argv)
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30 char **argv;
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31 {
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32 fd_set fds;
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33 int rc;
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34
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35 openlog("themwi-sip-in", 0, LOG_LOCAL5);
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36 read_config_file();
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37 if (read_number_db() < 0) {
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38 fprintf(stderr, "error reading number database\n");
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39 exit(1);
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40 }
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41 if (open_tmgw_socket() < 0) {
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42 fprintf(stderr, "error connecting to themwi-mgw socket\n");
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43 exit(1);
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44 }
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45 if (open_sip_udp_socket() < 0) {
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46 fprintf(stderr, "error opening SIP UDP socket\n");
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47 exit(1);
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48 }
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49 if (argv[1]) {
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50 rc = open_sip_log_file(argv[1]);
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51 if (rc < 0)
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52 exit(1); /* error msg already printed */
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53 }
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54 signal(SIGPIPE, SIG_IGN);
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55 /* main select loop */
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56 for (;;) {
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57 FD_ZERO(&fds);
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58 FD_SET(mgw_socket, &fds);
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59 FD_SET(sip_socket, &fds);
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60 if (gsm_is_connected)
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61 FD_SET(gsm_socket, &fds);
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62 rc = select(max_fd+1, &fds, 0, 0, 0);
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63 if (rc < 0) {
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64 if (errno == EINTR)
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65 continue;
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66 syslog(LOG_CRIT, "select: %m");
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67 exit(1);
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68 }
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69 gettimeofday(&cur_event_time, 0);
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70 if (gsm_is_connected && FD_ISSET(gsm_socket, &fds))
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71 gsm_socket_select();
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72 if (FD_ISSET(sip_socket, &fds))
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73 sip_socket_select();
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74 if (FD_ISSET(mgw_socket, &fds))
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75 mgw_socket_select();
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76 }
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77 }