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annotate smpp-trx-sa/main.c @ 261:a375639e4190

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smpp-trx-sa: refactor time formatting code
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 11 Oct 2023 17:34:45 -0800
parents 9d6e8d99d2b1
children 1bf989f60aa3
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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 char fmt_time[32];
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25 int init_done;
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26
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27 static void
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28 format_time()
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29 {
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30 struct tm *tm;
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31
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32 tm = gmtime(&curtime);
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33 sprintf(fmt_time, "%d-%02d-%02dT%02d:%02d:%02dZ",
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34 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
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35 tm->tm_hour, tm->tm_min, tm->tm_sec);
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36 }
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37
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38 main(argc, argv)
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39 char **argv;
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40 {
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41 struct sockaddr_in server_sin;
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42 fd_set fds;
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43 int max_fd, rc;
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44
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45 if (argc != 6) {
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46 fprintf(stderr,
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47 "usage: %s server-ip system-id password log-file socket-pathname\n",
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48 argv[0]);
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49 exit(1);
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50 }
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51 server_sin.sin_family = AF_INET;
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52 server_sin.sin_addr.s_addr = inet_addr(argv[1]);
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53 if (server_sin.sin_addr.s_addr == INADDR_NONE) {
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54 fprintf(stderr, "error: invalid IP address argument \"%s\"\n",
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55 argv[1]);
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56 exit(1);
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57 }
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58 server_sin.sin_port = htons(2775);
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59 if (strlen(argv[2]) > 15) {
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60 fprintf(stderr, "error: system-id string is too long\n");
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61 exit(1);
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62 }
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63 if (strlen(argv[3]) > 8) {
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64 fprintf(stderr, "error: password string is too long\n");
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65 exit(1);
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66 }
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67 logF = fopen(argv[4], "a");
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68 if (!logF) {
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69 perror(argv[4]);
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70 exit(1);
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71 }
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72 create_local_socket(argv[5]);
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73 max_fd = localsock;
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74 open_tcp_conn(&server_sin);
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75 if (tcpsock > max_fd)
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76 max_fd = tcpsock;
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77 time(&curtime);
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78 format_time();
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79 send_bind_req(argv[2], argv[3]);
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80 init_done = 1;
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81 /* main select loop */
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82 for (;;) {
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83 FD_ZERO(&fds);
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84 FD_SET(tcpsock, &fds);
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85 FD_SET(localsock, &fds);
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86 rc = select(max_fd+1, &fds, 0, 0, 0);
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87 if (rc < 0) {
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88 if (errno == EINTR)
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89 continue;
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90 perror("select");
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91 log_fatal_error("select syscall error");
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92 exit(1);
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93 }
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94 time(&curtime);
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95 format_time();
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96 if (FD_ISSET(tcpsock, &fds))
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97 tcpsock_select_handler();
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98 if (FD_ISSET(localsock, &fds))
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99 localsock_select_handler();
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100 fflush(logF);
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101 }
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102 }