C++ (Cpp) VCMC Examples

Example #1

File: mroute-api.c Project: jameshilliard/WECB-BH-GPL

int addMRoute( struct MRouteDesc *Dp )
/*
** Adds the multicast routed '*Dp' to the kernel routes
**
** returns: - 0 if the function succeeds
**          - the errno value for non-fatal failure condition
*/
{
  struct mfcctl CtlReq;
  
  CtlReq.mfcc_origin    = Dp->OriginAdr;
  // Kaohj
 // CtlReq.mfcc_subscriber = Dp->SubsAdr;
  CtlReq.mfcc_mcastgrp  = Dp->McAdr;
  CtlReq.mfcc_parent    = Dp->InVif;



  /* copy the TTL vector
   */
  if(    sizeof( CtlReq.mfcc_ttls ) != sizeof( Dp->TtlVc ) 
      || VCMC( CtlReq.mfcc_ttls ) != VCMC( Dp->TtlVc )
  )
    log( LOG_ERR, 0, "data types doesn't match in " __FILE__ ", source adaption needed !" );

  memcpy( CtlReq.mfcc_ttls, Dp->TtlVc, sizeof( CtlReq.mfcc_ttls ) );

  {
    char FmtBuO[ 32 ], FmtBuM[ 32 ];

    log( LOG_DEBUG, 0, "adding MFC: %s -> %s, InpVIf: %d", 
	    fmtInAdr( FmtBuO, CtlReq.mfcc_origin ), 
	    fmtInAdr( FmtBuM, CtlReq.mfcc_mcastgrp ),
	    CtlReq.mfcc_parent == ALL_VIFS ? -1 : CtlReq.mfcc_parent
	    );
  }

  if( setsockopt( MRouterFD, IPPROTO_IP, MRT_ADD_MFC,
		  (void *)&CtlReq, sizeof( CtlReq ) ) ) 
    log( LOG_WARNING, errno, "MRT_ADD_MFC" );
  
  return errno;
}

Example #2

File: syslog.c Project: BackupTheBerlios/tew632-brp-svn

void log_info( int Serverity, int Errno, const char *FmtSt, ... )
{
  const char ServVc[][ 5 ] = { "EMER", "ALER", "CRIT", "ERRO", 
			       "Warn", "Note", "Info", "Debu" };

  const char *ServPt = Serverity < 0 || Serverity >= VCMC( ServVc ) ? 
                       "!unknown serverity!" : ServVc[ Serverity ];
 
  const char *ErrSt = (Errno <= 0) ? NULL : (const char *)strerror( Errno ); 

  {
    va_list ArgPt;
    unsigned Ln;

    va_start( ArgPt, FmtSt );
    Ln  = snprintf( LogLastMsg, sizeof( LogLastMsg ), "%s: ", ServPt );
    Ln += vsnprintf( LogLastMsg + Ln, sizeof( LogLastMsg ) - Ln, FmtSt, ArgPt );
    if( ErrSt )
      snprintf( LogLastMsg + Ln, sizeof( LogLastMsg ) - Ln, "; Errno(%d): %s", Errno, ErrSt );
       
    va_end( ArgPt );
  }


  // update our global Last... variables
  LogLastServerity = Serverity;
  LogLastErrno = Errno;

  // control logging to stderr
  if(Serverity < LOG_WARNING || Serverity <= Log2Stderr )
    fprintf( stderr, "%s\n", LogLastMsg );

  // always to syslog
  syslog( Serverity, "%s", LogLastMsg );

  if( Serverity <= LOG_ERR )
    exit( -1 );
}