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#include <sys/types.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <signal.h>
#include "log.h"
#include "udpcast.h"
#include "udp-receiver.h"
#include "socklib.h"
#include "udpc_version.h"
#ifdef HAVE_GETOPT_H
#include <getopt.h>
#endif
#ifdef USE_SYSLOG
#include <syslog.h>
#endif
#ifdef BB_FEATURE_UDPCAST_FEC
#include "fec.h"
#endif
#define MAXBLOCK 1024
#ifdef HAVE_GETOPT_LONG
static struct option options[] = {
{ "file", 1, NULL, 'f' },
{ "pipe", 1, NULL, 'p' },
{ "port", 1, NULL, 'P' },
{ "portbase", 1, NULL, 'P' },
{ "interface", 1, NULL, 'i' },
{ "ttl", 1, NULL, 't' },
{ "mcast_all_address", 1, NULL, 'M' }, /* Obsolete name */
{ "mcast-all-address", 1, NULL, 'M' }, /* Obsolete name */
{ "mcast_rdv_address", 1, NULL, 'M' },
{ "mcast-rdv-address", 1, NULL, 'M' },
#ifdef LOSSTEST
/* simulating packet loss */
{ "write-loss", 1, NULL, 0x601 },
{ "read-loss", 1, NULL, 0x602 },
{ "seed", 1, NULL, 0x603 },
{ "print-seed", 0, NULL, 0x604 },
{ "read-swap", 1, NULL, 0x605 },
#endif
{ "passive", 0, NULL, 'd' },
{ "nosync", 0, NULL, 'n' },
{ "sync", 0, NULL, 'y' },
{ "rcvbuf", 1, NULL, 'b' },
{ "nokbd", 0, NULL, 'k' },
{ "exitWait", 1, NULL, 'w' }, /* Obsolete name */
{ "exit-wait", 1, NULL, 'w' },
{ "start-timeout", 1, NULL, 's' },
{ "receive-timeout", 1, NULL, 0x801 },
#ifdef BB_FEATURE_UDPCAST_FEC
{ "license", 0, NULL, 'L' },
#endif
{ "log", 1, NULL, 'l' },
{ "no-progress", 0, NULL, 0x701 },
{ "print-uncompressed-position", 1, NULL, 'x' },
{ "statistics-period", 1, NULL, 'z' },
{ "stat-period", 1, NULL, 'z' },
{ "ignore-lost-data", 0, NULL, 'Z' },
{ NULL, 0, NULL, 0 }
};
# define getopt_l(c,v,o) getopt_long(c, v, o, options, NULL)
#else /* HAVE_GETOPT_LONG */
# define getopt_l(c,v,o) getopt(c, v, o)
#endif /* HAVE_GETOPT_LONG */
static int signalNumber=0;
#ifdef SIG_UNBLOCK
static void signalForward(void) {
if(signalNumber != 0) {
sigset_t sig;
signal(signalNumber, SIG_DFL);
sigemptyset(&sig);
sigaddset(&sig, signalNumber);
sigprocmask(SIG_UNBLOCK, &sig, NULL);
raise(signalNumber);
perror("raise");
}
}
#endif
static void intHandler(int nr) {
signalNumber=nr;
udpc_fatal(1, "Signal %d: Cancelled by user\n", nr);
}
#ifdef NO_BB
static void usage(char *progname) {
#ifdef HAVE_GETOPT_LONG
fprintf(stderr, "%s [--file file] [--pipe pipe] [--portbase portbase] [--interface net-interface] [--log file] [--no-progress] [--ttl time-to-live] [--mcast-rdv-address mcast-rdv-address] [--rcvbuf buf] [--nokbd] [--exit-wait milliseconds] [--nosync] [--sync] [--start-timeout sto] [--receive-timeout rct] [--license] [-x uncomprStatPrint] [-z statPeriod] [--print-uncompressed-position flag] [--stat-period millis] [--ignore-lost-data]\n",
progname);
#else /* HAVE_GETOPT_LONG */
fprintf(stderr, "%s [--f file] [--p pipe] [-P portbase] [-i net-interface] [-l logfile] [-t time-to-live] [-M mcast-rdv-address] [-b rcvbuf] [-k] [-w exit-wait-milliseconds] [-n] [-y] [-s start-timeout] [-L] [-x uncomprStatPrint] [-z statPeriod] [-Z]\n",
progname);
#endif /* HAVE_GETOPT_LONG */
exit(1);
}
#endif
#ifndef NO_BB
int udp_receiver_main(int argc, char **argv);
int udp_receiver_main(int argc, char **argv)
#else
int main(int argc, char **argv)
#endif
{
int ret;
char *ptr;
struct net_config net_config;
struct disk_config disk_config;
struct stat_config stat_config;
int c;
int doWarn=0;
char *ifName=NULL;
#ifdef LOSSTEST
int seedSet = 0;
int printSeed = 0;
#endif
#ifdef SIG_UNBLOCK
atexit(signalForward);
#endif
disk_config.fileName=NULL;
disk_config.pipeName=NULL;
disk_config.flags = 0;
net_config.portBase = 9000;
net_config.ttl = 1;
net_config.flags = 0;
net_config.mcastRdv = NULL;
net_config.exitWait = 500;
net_config.startTimeout = 0;
net_config.receiveTimeout = 0;
stat_config.statPeriod = DEFLT_STAT_PERIOD;
stat_config.printUncompressedPos = -1;
stat_config.noProgress = 0;
#ifdef WINDOWS
/* windows is basically unusable with its default buffer size of 8k...*/
net_config.requestedBufSize = 1024*1024;
#else
net_config.requestedBufSize = 0;
#endif
ptr = strrchr(argv[0], '/');
if(!ptr)
ptr = argv[0];
else
ptr++;
net_config.net_if = NULL;
if (strcmp(ptr, "init") == 0) {
doWarn = 1;
disk_config.pipeName = strdup("/bin/gzip -dc");
disk_config.fileName = "/dev/hda";
}
while( (c=getopt_l(argc, argv, "b:f:p:P:i:l:M:s:t:w:x:z:dkLnyZ")) != EOF ) {
switch(c) {
case 'f':
disk_config.fileName=optarg;
break;
case 'i':
ifName=optarg;
break;
case 'p':
disk_config.pipeName=optarg;
break;
case 'P':
net_config.portBase = atoi(optarg);
break;
case 'l':
udpc_log = fopen(optarg, "a");
break;
case 0x701:
stat_config.noProgress = 1;
break;
case 't': /* ttl */
net_config.ttl = atoi(optarg);
break;
case 'M':
net_config.mcastRdv = strdup(optarg);
break;
#ifdef BB_FEATURE_UDPCAST_FEC
case 'L':
fec_license();
break;
#endif
#ifdef LOSSTEST
case 0x601:
setWriteLoss(optarg);
break;
case 0x602:
setReadLoss(optarg);
break;
case 0x603:
seedSet=1;
srandom(strtoul(optarg,0,0));
break;
case 0x604:
printSeed=1;
break;
case 0x605:
setReadSwap(optarg);
break;
#endif
case 'd': /* passive */
net_config.flags|=FLAG_PASSIVE;
break;
case 'n': /* nosync */
disk_config.flags|=FLAG_NOSYNC;
break;
case 'y': /* sync */
disk_config.flags|=FLAG_SYNC;
break;
case 'b': /* rcvbuf */
net_config.requestedBufSize=parseSize(optarg);
break;
case 'k': /* nokbd */
net_config.flags |= FLAG_NOKBD;
break;
case 'w': /* exit-wait */
net_config.exitWait = atoi(optarg);
break;
case 's': /* start-timeout */
net_config.startTimeout = atoi(optarg);
break;
case 0x801: /* receive-timeout */
net_config.receiveTimeout = atoi(optarg);
break;
case 'z':
stat_config.statPeriod = atoi(optarg) * 1000;
break;
case 'x':
stat_config.printUncompressedPos = atoi(optarg);
break;
case 'Z':
net_config.flags |= FLAG_IGNORE_LOST_DATA;
break;
case '?':
#ifndef NO_BB
bb_show_usage();
#else
usage(argv[0]);
#endif
}
}
fprintf(stderr, "Udp-receiver %s\n", version);
#ifdef LOSSTEST
if(!seedSet)
srandomTime(printSeed);
#endif
signal(SIGINT, intHandler);
#ifdef USE_SYSLOG
openlog((const char *)"udpcast", LOG_NDELAY|LOG_PID, LOG_SYSLOG);
#endif
ret= startReceiver(doWarn, &disk_config, &net_config, &stat_config, ifName);
if(ret < 0) {
fprintf(stderr, "Receiver error\n");
}
return ret;
}
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