int main(int argc, char *argv[]) { int option, rc; struct sockaddr_in localAddr, servAddr; struct hostent *h; int n; for(n=0;n<CLIMB;n++) climb[n]=0.0; switch (gpsd_units()) { case imperial: altfactor = METERS_TO_FEET; altunits = "ft"; speedfactor = MPS_TO_MPH; speedunits = "mph"; break; case nautical: altfactor = METERS_TO_FEET; altunits = "ft"; speedfactor = MPS_TO_KNOTS; speedunits = "knots"; break; case metric: altfactor = 1; altunits = "m"; speedfactor = MPS_TO_KPH; speedunits = "kph"; break; default: /* leave the default alone */ break; } /* Process the options. Print help if requested. */ while ((option = getopt(argc, argv, "Vhl:su:")) != -1) { switch (option) { case 'V': (void)fprintf(stderr, "lcdgs revision " REVISION "\n"); exit(EXIT_SUCCESS); case 'h': default: usage(argv[0]); break; case 'l': switch ( optarg[0] ) { case 'd': deg_type = deg_dd; continue; case 'm': deg_type = deg_ddmm; continue; case 's': deg_type = deg_ddmmss; continue; default: (void)fprintf(stderr, "Unknown -l argument: %s\n", optarg); } break; case 's': sleep(10); continue; case 'u': switch ( optarg[0] ) { case 'i': altfactor = METERS_TO_FEET; altunits = "ft"; speedfactor = MPS_TO_MPH; speedunits = "mph"; continue; case 'n': altfactor = METERS_TO_FEET; altunits = "ft"; speedfactor = MPS_TO_KNOTS; speedunits = "knots"; continue; case 'm': altfactor = 1; altunits = "m"; speedfactor = MPS_TO_KPH; speedunits = "kph"; continue; default: (void)fprintf(stderr, "Unknown -u argument: %s\n", optarg); } } } /* Grok the server, port, and device. */ if (optind < argc) { gpsd_source_spec(argv[optind], &source); } else gpsd_source_spec(NULL, &source); /* Daemonize... */ if (daemon(0, 0) != 0) (void)fprintf(stderr, "lcdgps: demonization failed: %s\n", strerror(errno)); /* Open the stream to gpsd. */ if (gps_open(source.server, source.port, &gpsdata) != 0) { (void)fprintf( stderr, "lcdgps: no gpsd running or network error: %d, %s\n", errno, gps_errstr(errno)); exit(EXIT_FAILURE); } /* Connect to LCDd */ h = gethostbyname(LCDDHOST); if (h==NULL) { printf("%s: unknown host '%s'\n",argv[0],LCDDHOST); exit(EXIT_FAILURE); } servAddr.sin_family = h->h_addrtype; memcpy((char *) &servAddr.sin_addr.s_addr, h->h_addr_list[0], h->h_length); servAddr.sin_port = htons(LCDDPORT); /* create socket */ sd = socket(AF_INET, SOCK_STREAM, 0); if (BAD_SOCKET(sd)) { perror("cannot open socket "); exit(EXIT_FAILURE); } /* bind any port number */ localAddr.sin_family = AF_INET; localAddr.sin_addr.s_addr = htonl(INADDR_ANY); localAddr.sin_port = htons(0); /* coverity[uninit_use_in_call] */ rc = bind(sd, (struct sockaddr *) &localAddr, sizeof(localAddr)); if (rc == -1) { printf("%s: cannot bind port TCP %u\n",argv[0],LCDDPORT); perror("error "); exit(EXIT_FAILURE); } /* connect to server */ /* coverity[uninit_use_in_call] */ rc = connect(sd, (struct sockaddr *) &servAddr, sizeof(servAddr)); if (rc == -1) { perror("cannot connect "); exit(EXIT_FAILURE); } /* Do the initial field label setup. */ reset_lcd(); /* Here's where updates go. */ unsigned int flags = WATCH_ENABLE; if (source.device != NULL) flags |= WATCH_DEVICE; (void)gps_stream(&gpsdata, flags, source.device); for (;;) { /* heart of the client */ if (!gps_waiting(&gpsdata, 50000000)) { fprintf( stderr, "lcdgps: error while waiting\n"); exit(EXIT_FAILURE); } else { (void)gps_read(&gpsdata); update_lcd(&gpsdata); } } }
int main(int argc, char *argv[]) { int option; unsigned int flags = WATCH_ENABLE; /*@ -observertrans @*/ switch (gpsd_units()) { case imperial: altfactor = METERS_TO_FEET; altunits = "ft"; speedfactor = MPS_TO_MPH; speedunits = "mph"; break; case nautical: altfactor = METERS_TO_FEET; altunits = "ft"; speedfactor = MPS_TO_KNOTS; speedunits = "knots"; break; case metric: altfactor = 1; altunits = "m"; speedfactor = MPS_TO_KPH; speedunits = "kph"; break; default: /* leave the default alone */ break; } /*@ +observertrans @*/ /* Process the options. Print help if requested. */ while ((option = getopt(argc, argv, "hVl:smu:D:")) != -1) { switch (option) { #ifdef CLIENTDEBUG_ENABLE case 'D': debug = atoi(optarg); gps_enable_debug(debug, stderr); break; #endif /* CLIENTDEBUG_ENABLE */ case 'm': magnetic_flag = true; break; case 's': silent_flag = true; break; case 'u': /*@ -observertrans @*/ switch (optarg[0]) { case 'i': altfactor = METERS_TO_FEET; altunits = "ft"; speedfactor = MPS_TO_MPH; speedunits = "mph"; continue; case 'n': altfactor = METERS_TO_FEET; altunits = "ft"; speedfactor = MPS_TO_KNOTS; speedunits = "knots"; continue; case 'm': altfactor = 1; altunits = "m"; speedfactor = MPS_TO_KPH; speedunits = "kph"; continue; default: (void)fprintf(stderr, "Unknown -u argument: %s\n", optarg); } break; /*@ +observertrans @*/ case 'V': (void)fprintf(stderr, "cgps: %s (revision %s)\n", VERSION, REVISION); exit(EXIT_SUCCESS); case 'l': switch (optarg[0]) { case 'd': deg_type = deg_dd; continue; case 'm': deg_type = deg_ddmm; continue; case 's': deg_type = deg_ddmmss; continue; default: (void)fprintf(stderr, "Unknown -l argument: %s\n", optarg); /*@ -casebreak @*/ } break; case 'h': default: usage(argv[0]); break; } } /* Grok the server, port, and device. */ if (optind < argc) { gpsd_source_spec(argv[optind], &source); } else gpsd_source_spec(NULL, &source); /* Open the stream to gpsd. */ if (gps_open(source.server, source.port, &gpsdata) != 0) { (void)fprintf(stderr, "cgps: no gpsd running or network error: %d, %s\n", errno, gps_errstr(errno)); exit(EXIT_FAILURE); } /* note: we're assuming BSD-style reliable signals here */ (void)signal(SIGINT, die); (void)signal(SIGHUP, die); (void)signal(SIGWINCH, resize); windowsetup(); status_timer = time(NULL); if (source.device != NULL) flags |= WATCH_DEVICE; (void)gps_stream(&gpsdata, flags, source.device); /* heart of the client */ for (;;) { int c; if (!gps_waiting(&gpsdata, 5000000)) { die(GPS_TIMEOUT); } else { errno = 0; if (gps_read(&gpsdata) == -1) { fprintf(stderr, "cgps: socket error 4\n"); die(errno == 0 ? GPS_GONE : GPS_ERROR); } else { /* Here's where updates go now that things are established. */ #ifdef TRUENORTH if (compass_flag) update_compass_panel(&gpsdata); else #endif /* TRUENORTH */ update_gps_panel(&gpsdata); } } /* Check for user input. */ c = wgetch(datawin); switch (c) { /* Quit */ case 'q': die(CGPS_QUIT); break; /* Toggle spewage of raw gpsd data. */ case 's': silent_flag = !silent_flag; break; /* Clear the spewage area. */ case 'c': (void)werase(messages); break; default: break; } } }