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annotate autocal/tsidsock.c @ 102:80281b67511f

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fc-rfcal-txband: fixed bug in the corner case when the target power level is above the highest basis point
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 12 Aug 2017 08:47:09 +0000
parents f67f46e56355
children
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93e5194e5511 autocal/tsidsock.c written
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1 /*
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2 * TSID local socket interface
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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/socket.h>
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7 #include <sys/un.h>
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8 #include <stdio.h>
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9 #include <string.h>
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10 #include <strings.h>
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11 #include <stdlib.h>
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12 #include <unistd.h>
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13 #include <rvinterf/exitcodes.h>
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14
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15 char *tsid_socket_pathname = "/tmp/fc_rftest_socket";
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16 int tsid_socket;
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17 char tsid_response[4096];
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18
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19 connect_tsid_socket()
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20 {
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21 /* local socket binding voodoo copied from osmocon */
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22 struct sockaddr_un local;
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23 unsigned int namelen;
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24 int rc;
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25
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26 tsid_socket = socket(AF_UNIX, SOCK_STREAM, 0);
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27 if (tsid_socket < 0) {
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28 perror("socket(AF_UNIX, SOCK_STREAM, 0)");
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29 exit(ERROR_UNIX);
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30 }
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31
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32 local.sun_family = AF_UNIX;
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33 strncpy(local.sun_path, tsid_socket_pathname, sizeof(local.sun_path));
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34 local.sun_path[sizeof(local.sun_path) - 1] = '\0';
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35
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36 /* we use the same magic that X11 uses in Xtranssock.c for
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37 * calculating the proper length of the sockaddr */
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38 #if defined(BSD44SOCKETS) || defined(__UNIXWARE__)
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39 local.sun_len = strlen(local.sun_path);
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40 #endif
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41 #if defined(BSD44SOCKETS) || defined(SUN_LEN)
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42 namelen = SUN_LEN(&local);
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43 #else
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44 namelen = strlen(local.sun_path) +
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45 offsetof(struct sockaddr_un, sun_path) + 1;
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46 #endif
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47
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48 rc = connect(tsid_socket, (struct sockaddr *) &local, namelen);
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49 if (rc != 0) {
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50 perror(tsid_socket_pathname);
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51 exit(ERROR_RFTEST);
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52 }
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53 collect_tsid_response();
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54 return(0);
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55 }
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57 collect_tsid_response()
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58 {
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59 char buf[BUFSIZ];
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60 int cc, pos;
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61
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62 for (pos = 0; ; ) {
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63 cc = read(tsid_socket, buf, sizeof buf);
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64 if (cc <= 0) {
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65 perror("read from TSID socket");
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66 exit(ERROR_RFTEST);
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67 }
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68 if (pos + cc > sizeof tsid_response) {
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69 fprintf(stderr,
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70 "error: response from TSID exceeds our buffer size\n");
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71 exit(ERROR_RFTEST);
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72 }
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73 bcopy(buf, tsid_response + pos, cc);
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74 pos += cc;
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75 if (tsid_response[pos-1] == '\n')
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76 break;
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77 }
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78 tsid_response[pos-1] = '\0';
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79 if (tsid_response[0] != '+') {
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80 fprintf(stderr, "Error from TSID: %s\n", tsid_response);
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81 exit(ERROR_RFTEST);
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82 }
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83 return(0);
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84 }
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85
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86 tsid_command(cmd)
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87 char *cmd;
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88 {
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89 write(tsid_socket, cmd, strlen(cmd));
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90 collect_tsid_response();
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91 return(0);
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92 }