BlinkenSend.c (d33aef3) - BlinkenLib · BlinkenArea

BlinkenSend.c

/* BlinkenLib
 * version 0.4 date 2005-07-02
 * Copyright 2004-2005 Stefan Schuermans <1stein@schuermans.info>
 * Copyleft: GNU public license - http://www.gnu.org/copyleft/gpl.html
 * a blinkenarea.org project
 * powered by eventphone.de
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>

#include "BlinkenLib.h"

int main( int argCnt, char * * args )
{
  int i, udpSocket, connected;
  etBlinkenProto proto;
  char txt[64];
  unsigned short port;
  struct sockaddr_in addr;
  stBlinkenMovie * pMovie;

//print info
  printf( "BlinkenLib - BlinkenSend\n"
          "version 0.4 date 2005-07-02\n"
          "Copyright 2004-2005 Stefan Schuermans <1stein@schuermans.info>\n"
          "Copyleft: GNU public license - http://www.gnu.org/copyleft/gpl.html\n"
          "a blinkenarea.org project\n"
          "powered by eventphone.de\n\n" );

//print syntax
  if( argCnt <= 1 )
  {
    printf( "syntax: %s <parameter> [...]\n\n"
            "parameters:\n"
            "  -s [<ip>:]<port>\n"
            "     source address (defaults to 0.0.0.0:0)\n"
            "     must occur before -d and -i, may only occur once\n"
            "  -d <ip>[:<port>]\n"
            "     destination addess (defaults to 127.0.0.1:2323)\n"
            "  -p [BLP|EBLP|MCUF]\n"
            "     protocol to use (defaults to MCUF)\n"
            "  -i <file>\n"
            "     read movie from file (*.blm, *.bmm, *.bml, *.bbm) and send it\n\n",
            args[0] );
    return 0;
  }

//create udp socket
  udpSocket = socket( AF_INET, SOCK_DGRAM, IPPROTO_UDP );
  if( udpSocket == -1 )
  {
    printf( "cannot create UDP socket\n" );
    return -1;
  }
  connected = 0;

//process parameters
  proto = BlinkenProtoMcuf;
  for( i = 1; i < argCnt; i++ )
  {

//source address
    if( strcmp( args[i], "-s" ) == 0 )
    {
      if( i + 1 < argCnt )
      {
        i++;
        if( sscanf( args[i], "%32[0-9.]:%hu", txt, &port ) == 2 )
        {
          addr.sin_family = AF_INET;
          addr.sin_port = htons( port );
          addr.sin_addr.s_addr = inet_addr( txt );
          if( bind( udpSocket, (struct sockaddr *)&addr, sizeof( addr ) ) != 0 )
            printf( "could not set source address to \"%s\"\n", args[i] );
        }
        else if( sscanf( args[i], "%hu", &port ) == 1 )
        {
          addr.sin_family = AF_INET;
          addr.sin_port = htons( port );
          addr.sin_addr.s_addr = htonl( INADDR_ANY );
          if( bind( udpSocket, (struct sockaddr *)&addr, sizeof( addr ) ) != 0 )
            printf( "could not set source address to \"%s\"\n", args[i] );
        }
        else
          printf( "invalid source address \"%s\"\n", args[i] );
      }
      else
        printf( "missing source address for \"-s\"\n" );
    }

//destination address
    else if( strcmp( args[i], "-d" ) == 0 )
    {
      if( i + 1 < argCnt )
      {
        i++;
        if( sscanf( args[i], "%32[0-9.]:%hu", txt, &port ) == 2 )
        {
          addr.sin_family = AF_INET;
          addr.sin_port = htons( port );
          addr.sin_addr.s_addr = inet_addr( txt );
          if( connect( udpSocket, (struct sockaddr *)&addr, sizeof( addr ) ) != 0 )
            printf( "could not set destination address to \"%s\"\n", args[i] );
          else
            connected = 1;
        }
        else if( sscanf( args[i], "%32[0-9.]", txt ) == 1 )
        {
          addr.sin_family = AF_INET;
          addr.sin_port = htons( 2323 );
          addr.sin_addr.s_addr = inet_addr( txt );
          if( connect( udpSocket, (struct sockaddr *)&addr, sizeof( addr ) ) != 0 )
            printf( "could not set destination address to \"%s\"\n", args[i] );
          else
            connected = 1;
        }
        else
          printf( "invalid destination address \"%s\"\n", args[i] );
      }
      else
        printf( "missing destination address for \"-d\"\n" );
    }

//protocol to use
    else if( strcmp( args[i], "-p" ) == 0 )
    {
      if( i + 1 < argCnt )
      {
        i++;
        if( strcasecmp( args[i], "BLP" ) == 0 )
          proto = BlinkenProtoBlp;
        else if( strcasecmp( args[i], "EBLP" ) == 0 )
          proto = BlinkenProtoEblp;
        else if( strcasecmp( args[i], "MCUF" ) == 0 )
          proto = BlinkenProtoMcuf;
        else
          printf( "unknown protocol \"%s\"\n", args[i] );
      }
      else
        printf( "missing protocol for \"-p\"\n" );
    }

//read movie and sent it
    else if( strcmp( args[i], "-i" ) == 0 )
    {
      if( i + 1 < argCnt )
      {
        i++;
        if( ! connected ) //try to connect if not yet connected
        {
          printf( "no destination address to sent movie \"%s\" to,\n"
                  "  using default destination address \"127.0.0.1:2323\"\n", args[i] );
          addr.sin_family = AF_INET;
          addr.sin_port = htons( 2323 );
          addr.sin_addr.s_addr = htonl( INADDR_LOOPBACK );
          if( connect( udpSocket, (struct sockaddr *)&addr, sizeof( addr ) ) != 0 )
            printf( "could not set destination address to \"127.0.0.1:2323\"\n" );
          else
            connected = 1;
        }
        if( connected )
        {
          pMovie = BlinkenMovieLoad( args[i] );
          if( pMovie == NULL )
            printf( "could not read movie \"%s\"\n", args[i] );
          else
          {
            printf( "movie \"%s\" read - sending...\n", args[i] );
            BlinkenMovieSend( pMovie, udpSocket, proto );
            printf( "movie \"%s\" sent\n", args[i] );
            BlinkenMovieFree( pMovie );
          }
        }
        else
          printf( "no destination address to sent movie \"%s\" to\n", args[i] );
      }
      else
        printf( "missing input filename for \"-i\"\n" );
    }

//unknown parameter
    else
      printf( "unknown parameter \"%s\", call without parameters to get help\n", args[i] );

} //for( i ...

//close socket
  close( udpSocket );

return 0;
}

BlinkenLib

BlinkenLib v.0.4 (2005-07-02)