FreeCalypso > hg > themwi-system-sw

annotate mncc/main.c @ 124:7e04d28fae8b

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sip-in: default use-100rel to no BulkVS servers act badly when we send a reliable 180 Ringing response to an incoming call, even though they advertise 100rel support in the Supported header in the INVITE packet, and we probably won't be implementing 100rel for outbound because doing per-the-spec PRACK as a UAC is just too burdensome. Therefore, we need to consider 100rel extension as not-really-supported in themwi-system-sw.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 01 Oct 2022 15:54:50 -0800
parents ccc5ab6d8388
children 2ebad02adbe5
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1 /*
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2 * Main module for ThemWi MNCC daemon.
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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/errno.h>
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7 #include <stdio.h>
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8 #include <stdint.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 #include "struct.h"
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16
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17 extern int mncc_socket;
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18 extern int mtcall_listener;
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19 extern struct socket_conn *mtcall_socket_head;
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20
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21 static int max_fd;
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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 struct socket_conn *conn, **connp;
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34 int c;
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35
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36 openlog("themwi-mncc", 0, LOG_LOCAL5);
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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_mncc_socket() < 0) {
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42 fprintf(stderr, "error connecting to GSM MNCC socket\n");
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43 exit(1);
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44 }
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45 if (create_mtcall_socket() < 0) {
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46 fprintf(stderr, "error creating MT call socket\n");
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47 exit(1);
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48 }
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49 signal(SIGPIPE, SIG_IGN);
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50 /* main select loop */
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51 for (;;) {
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52 FD_ZERO(&fds);
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53 FD_SET(mncc_socket, &fds);
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54 FD_SET(mtcall_listener, &fds);
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55 for (connp = &mtcall_socket_head; conn = *connp; ) {
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56 if (conn->fd < 0) {
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57 *connp = conn->next;
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58 free(conn);
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59 continue;
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60 }
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61 FD_SET(conn->fd, &fds);
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62 connp = &conn->next;
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63 }
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64 c = select(max_fd+1, &fds, 0, 0, 0);
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65 if (c < 0) {
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66 if (errno == EINTR)
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67 continue;
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68 syslog(LOG_CRIT, "select: %m");
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69 exit(1);
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70 }
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71 if (FD_ISSET(mncc_socket, &fds))
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72 mncc_socket_select();
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73 if (FD_ISSET(mtcall_listener, &fds))
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74 mtsock_accept_handler();
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75 for (conn = mtcall_socket_head; conn; conn = conn->next)
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76 if (FD_ISSET(conn->fd, &fds))
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77 extsock_read_select(conn);
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78 gc_call_list();
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79 }
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80 }