FreeCalypso > hg > fc-rfcal-tools
view autocal/tsidsock.c @ 124:9f09a7c3607a
fc-rfcal-txband: level error tolerance tightened to 0.75 dB
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 12 Jan 2019 20:15:17 +0000 |
parents | f67f46e56355 |
children |
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/* * TSID local socket interface */ #include <sys/types.h> #include <sys/socket.h> #include <sys/un.h> #include <stdio.h> #include <string.h> #include <strings.h> #include <stdlib.h> #include <unistd.h> #include <rvinterf/exitcodes.h> char *tsid_socket_pathname = "/tmp/fc_rftest_socket"; int tsid_socket; char tsid_response[4096]; connect_tsid_socket() { /* local socket binding voodoo copied from osmocon */ struct sockaddr_un local; unsigned int namelen; int rc; tsid_socket = socket(AF_UNIX, SOCK_STREAM, 0); if (tsid_socket < 0) { perror("socket(AF_UNIX, SOCK_STREAM, 0)"); exit(ERROR_UNIX); } local.sun_family = AF_UNIX; strncpy(local.sun_path, tsid_socket_pathname, sizeof(local.sun_path)); local.sun_path[sizeof(local.sun_path) - 1] = '\0'; /* we use the same magic that X11 uses in Xtranssock.c for * calculating the proper length of the sockaddr */ #if defined(BSD44SOCKETS) || defined(__UNIXWARE__) local.sun_len = strlen(local.sun_path); #endif #if defined(BSD44SOCKETS) || defined(SUN_LEN) namelen = SUN_LEN(&local); #else namelen = strlen(local.sun_path) + offsetof(struct sockaddr_un, sun_path) + 1; #endif rc = connect(tsid_socket, (struct sockaddr *) &local, namelen); if (rc != 0) { perror(tsid_socket_pathname); exit(ERROR_RFTEST); } collect_tsid_response(); return(0); } collect_tsid_response() { char buf[BUFSIZ]; int cc, pos; for (pos = 0; ; ) { cc = read(tsid_socket, buf, sizeof buf); if (cc <= 0) { perror("read from TSID socket"); exit(ERROR_RFTEST); } if (pos + cc > sizeof tsid_response) { fprintf(stderr, "error: response from TSID exceeds our buffer size\n"); exit(ERROR_RFTEST); } bcopy(buf, tsid_response + pos, cc); pos += cc; if (tsid_response[pos-1] == '\n') break; } tsid_response[pos-1] = '\0'; if (tsid_response[0] != '+') { fprintf(stderr, "Error from TSID: %s\n", tsid_response); exit(ERROR_RFTEST); } return(0); } tsid_command(cmd) char *cmd; { write(tsid_socket, cmd, strlen(cmd)); collect_tsid_response(); return(0); }