FreeCalypso > hg > fc-rfcal-tools

annotate tsid-test/fc-tsid-shell.c @ 57:2588f9eed11a

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fc-rfcal-rxband started
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 27 May 2017 23:05:28 +0000
parents bd62be88259d
children
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1 /*
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2 * This program connects to the RF calibration Test System Interface Daemon
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3 * (TSID) over the local socket interface and allows manual human interaction
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4 * with the TSID for development.
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5 */
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6
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7 #include <sys/types.h>
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8 #include <sys/socket.h>
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9 #include <sys/un.h>
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10 #include <sys/errno.h>
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11 #include <stdio.h>
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12 #include <string.h>
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13 #include <strings.h>
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14 #include <stdlib.h>
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15 #include <unistd.h>
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16
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17 extern int errno;
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18
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19 static char default_socket_pathname[] = "/tmp/fc_rftest_socket";
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20
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21 char *socket_pathname;
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22 int sock;
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23
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24 connect_local_socket()
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25 {
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26 /* local socket binding voodoo copied from osmocon */
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27 struct sockaddr_un local;
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28 unsigned int namelen;
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29 int rc;
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30
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31 sock = socket(AF_UNIX, SOCK_STREAM, 0);
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32 if (sock < 0) {
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33 perror("socket(AF_UNIX, SOCK_STREAM, 0)");
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34 exit(1);
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35 }
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36
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37 local.sun_family = AF_UNIX;
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38 strncpy(local.sun_path, socket_pathname, sizeof(local.sun_path));
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39 local.sun_path[sizeof(local.sun_path) - 1] = '\0';
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40
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41 /* we use the same magic that X11 uses in Xtranssock.c for
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42 * calculating the proper length of the sockaddr */
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43 #if defined(BSD44SOCKETS) || defined(__UNIXWARE__)
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44 local.sun_len = strlen(local.sun_path);
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45 #endif
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46 #if defined(BSD44SOCKETS) || defined(SUN_LEN)
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47 namelen = SUN_LEN(&local);
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48 #else
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49 namelen = strlen(local.sun_path) +
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50 offsetof(struct sockaddr_un, sun_path) + 1;
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51 #endif
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52
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53 rc = connect(sock, (struct sockaddr *) &local, namelen);
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54 if (rc != 0) {
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55 perror(socket_pathname);
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56 exit(1);
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57 }
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58
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59 return(0);
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60 }
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61
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62 main(argc, argv)
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63 char **argv;
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64 {
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65 char buf[BUFSIZ];
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66 fd_set fds, fds1;
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67 register int i, cc, max;
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68
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69 switch (argc) {
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70 case 1:
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71 socket_pathname = default_socket_pathname;
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72 break;
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73 case 2:
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74 socket_pathname = argv[1];
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75 break;
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76 default:
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77 fprintf(stderr, "usage: %s [socket-pathname]\n", argv[0]);
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78 exit(1);
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79 }
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80 connect_local_socket();
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81 FD_ZERO(&fds);
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82 FD_SET(0, &fds);
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83 FD_SET(sock, &fds);
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84 max = sock + 1;
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85 for (;;) {
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86 bcopy(&fds, &fds1, sizeof(fd_set));
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87 i = select(max, &fds1, NULL, NULL, NULL);
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88 if (i < 0) {
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89 if (errno == EINTR)
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90 continue;
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91 perror("select");
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92 exit(1);
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93 }
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94 if (FD_ISSET(0, &fds1)) {
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95 cc = read(0, buf, sizeof buf);
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96 if (cc <= 0)
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97 exit(0);
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98 write(sock, buf, cc);
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99 }
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100 if (FD_ISSET(sock, &fds1)) {
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101 cc = read(sock, buf, sizeof buf);
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102 if (cc <= 0) {
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103 fprintf(stderr, "EOF/error on socket read\n");
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104 exit(1);
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105 }
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106 write(1, buf, cc);
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107 }
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108 }
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109 }