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annotate smpp-trx-sa/main.c @ 222:9d6e8d99d2b1

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smpp-trx-sa: new program
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 03 Aug 2023 21:13:41 -0800
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children a375639e4190
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222
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1 /*
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2 * This C file is the main module for smpp-trx-sa - a standalone bind_trx
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3 * client (ESME role) that writes all incoming messages into a log file
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4 * and also allows outgoing messages to be sent via a UNIX domain local
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5 * socket (datagram).
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6 */
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7
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8 #include <sys/types.h>
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9 #include <sys/socket.h>
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10 #include <sys/errno.h>
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11 #include <netinet/in.h>
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12 #include <arpa/inet.h>
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13 #include <stdio.h>
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14 #include <stdlib.h>
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15 #include <string.h>
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16 #include <strings.h>
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17 #include <time.h>
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18 #include <unistd.h>
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19
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20 extern int tcpsock, localsock;
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21
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22 FILE *logF;
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23 time_t curtime;
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24 int init_done;
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25
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26 main(argc, argv)
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27 char **argv;
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28 {
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29 struct sockaddr_in server_sin;
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30 fd_set fds;
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31 int max_fd, rc;
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32
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33 if (argc != 6) {
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34 fprintf(stderr,
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35 "usage: %s server-ip system-id password log-file socket-pathname\n",
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36 argv[0]);
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37 exit(1);
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38 }
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39 server_sin.sin_family = AF_INET;
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40 server_sin.sin_addr.s_addr = inet_addr(argv[1]);
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41 if (server_sin.sin_addr.s_addr == INADDR_NONE) {
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42 fprintf(stderr, "error: invalid IP address argument \"%s\"\n",
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43 argv[1]);
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44 exit(1);
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45 }
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46 server_sin.sin_port = htons(2775);
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47 if (strlen(argv[2]) > 15) {
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48 fprintf(stderr, "error: system-id string is too long\n");
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49 exit(1);
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50 }
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51 if (strlen(argv[3]) > 8) {
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52 fprintf(stderr, "error: password string is too long\n");
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53 exit(1);
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54 }
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55 logF = fopen(argv[4], "a");
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56 if (!logF) {
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57 perror(argv[4]);
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58 exit(1);
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59 }
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60 create_local_socket(argv[5]);
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61 max_fd = localsock;
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62 open_tcp_conn(&server_sin);
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63 if (tcpsock > max_fd)
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64 max_fd = tcpsock;
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65 time(&curtime);
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66 send_bind_req(argv[2], argv[3]);
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67 init_done = 1;
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68 /* main select loop */
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69 for (;;) {
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70 FD_ZERO(&fds);
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71 FD_SET(tcpsock, &fds);
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72 FD_SET(localsock, &fds);
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73 rc = select(max_fd+1, &fds, 0, 0, 0);
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74 if (rc < 0) {
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75 if (errno == EINTR)
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76 continue;
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77 perror("select");
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78 log_fatal_error("select syscall error");
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79 exit(1);
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80 }
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81 time(&curtime);
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82 if (FD_ISSET(tcpsock, &fds))
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83 tcpsock_select_handler();
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84 if (FD_ISSET(localsock, &fds))
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85 localsock_select_handler();
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86 fflush(logF);
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87 }
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88 }