/* * rb-download [-v] [-a <adapter>] [-b <base_dir>] [-t <timeout>] [-l[<listen-addr>]] [-c <carousel_id>] [<service_id>] * * Download the DVB Object Carousel for the given channel onto the local hard disc * files will be stored under the current dir if no -b option is given * * if no service_id is given, a list of possible channels (and their service_id) is printed * the carousel ID is normally read from the PMT, use -c to explicitly set it * * the default timeout is 10 seconds * if no DSMCC data is read after this time, it is assumed none is being broadcast * * the DVB devices used will be: * /dev/dvb/adapter0/demux0 * /dev/dvb/adapter0/dvr0 * use the -a option to change the adapter number (eg "-a 1" will use /dev/dvb/adapter1/demux0 etc) * * if -l is given, rb-download listens on the network for commands from a remote rb-browser * the default IP to listen on is 0.0.0.0 (ie all interfaces), the default TCP port is 10101 * listen-addr should be given in the form "host:port", where host defaults to 0.0.0.0 and port defaults to 10101 * eg, to listen on a different port, do "-l8080" * to only listen on the loop back, do "-l127.0.0.1" or on a different port too, do "-l127.0.0.1:8080" * NOTE: because -l may or may not take an argument, you must not put a space between the -l and the value * (otherwise, "rb-download -l 1234", is ambiguous - listen on port 1234 or use service_id 1234?) * * -v is verbose/debug mode, use more v's for more verbosity * * the file structure will be: * ./services/<service_id> * this is a symlink to the root of the carousel * the actual carousel files and directories are stored under: * ./carousels/<PID>/<CID>/ * where <PID> is the PID the carousel was downloaded from * and <CID> is the Carousel ID *//* * Copyright (C) 2005, 2006, Simon Kilvington * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA */#include <unistd.h>#include <string.h>#include <stdio.h>#include <stdlib.h>#include <stdint.h>#include <stdbool.h>#include <errno.h>#include <netinet/in.h>#include "list.h"#include "findmheg.h"#include "carousel.h"#include "listen.h"#include "utils.h"/* seconds before we assume no DSMCC data is available on this PID */#define DEFAULT_TIMEOUT	10/* default listen address */#define DEFAULT_LISTEN_ADDR	INADDR_ANY#define DEFAULT_LISTEN_PORT	10101static int _verbose = 0;void usage(char *);intmain(int argc, char *argv[]){	char *prog_name = argv[0];	unsigned int adapter = 0;	unsigned int timeout = DEFAULT_TIMEOUT;	bool listen = false;	struct listen_data listen_data;	int carousel_id = -1;	uint16_t service_id;	struct carousel *car;	int arg;	while((arg = getopt(argc, argv, "a:b:t:l::c:v")) != EOF)	{		switch(arg)		{		case 'a':			adapter = strtoul(optarg, NULL, 0);			break;		case 'b':			if(chdir(optarg) < 0)				fatal("Unable to cd to '%s': %s", optarg, strerror(errno));			break;		case 't':			timeout = strtoul(optarg, NULL, 0);			break;		case 'l':			listen = true;			/* default values */			listen_data.addr.sin_addr.s_addr = htonl(DEFAULT_LISTEN_ADDR);			listen_data.addr.sin_port = htons(DEFAULT_LISTEN_PORT);			/* optarg is NULL if no value is given, parse_addr can't fail with NULL */			if(parse_addr(optarg, &listen_data.addr.sin_addr, &listen_data.addr.sin_port) < 0)				fatal("Unable to resolve host %s", optarg);			break;		case 'c':			carousel_id = strtoul(optarg, NULL, 0);			break;		case 'v':			_verbose ++;			break;		default:			usage(prog_name);			break;		}	}	if(argc == optind)	{		list_channels(adapter, timeout);	}	else if(argc - optind == 1)	{		service_id = strtoul(argv[optind], NULL, 0);		car = find_mheg(adapter, timeout, service_id, carousel_id);		verbose("Carousel ID=%u", car->carousel_id);		verbose("Video PID=%u", car->video_pid);		verbose("Audio PID=%u", car->audio_pid);		if(listen)		{			listen_data.carousel = car;			start_listener(&listen_data);		}		load_carousel(car);	}	else	{		usage(prog_name);	}	return EXIT_SUCCESS;}voidverbose(char *message, ...){	va_list ap;	if(_verbose)	{	        va_start(ap, message);	        vprintf(message, ap);		printf("\n");	        va_end(ap);	}	return;}voidvverbose(char *message, ...){	va_list ap;	if(_verbose > 1)	{	        va_start(ap, message);	        vprintf(message, ap);		printf("\n");	        va_end(ap);	}	return;}voidvhexdump(unsigned char *data, size_t nbytes){	if(_verbose > 1)		hexdump(data, nbytes);	return;}voidusage(char *prog_name){	fatal("Usage: %s [-v] "			"[-a <adapter>] "			"[-b <base_dir>] "			"[-t <timeout>] "			"[-l[<listen-addr>]] "			"[-c carousel_id] "			"[<service_id>]", prog_name);}