/* Msg Sprejemnik */
#include <stdio.h>
#include <sys/ipc.h>
#include <sys/types.h>
#include <sys/msg.h>

#define MSG_TYPE  1  /* Sprejemam sporocila tega tipa */

struct MsgReceive_t{
  long MsgType;
  long SenderId;
  char Message[128];
};

int main( argc, argv )
int argc; char **argv;
{
  int MsgId, MsgReceiveSize, Sprejel;
  struct MsgReceive_t MsgReceive;

  if( (MsgId =  msgget( ftok("msgkey", 'k'), IPC_CREAT | 0644 )) == -1 ){
    printf("%s: Napaka, msgget ni uspel\n", argv[0]);
    exit( 1 );
  }
  MsgReceiveSize       = sizeof(MsgReceive) - sizeof( long );

  for( ; ; ){
    if((Sprejel=msgrcv( MsgId, &MsgReceive, MsgReceiveSize, MSG_TYPE, 0 )) == -1 ){
      printf("%s: Napaka, msgrcv ni uspel\n", argv[0]);
      exit( 2 );
    }
    MsgReceive.Message[Sprejel- sizeof(long)] = 0;
    printf("Tip sporocila: %4d \n", MsgReceive.MsgType );
    printf("Id Oddajnika : %4d \n", MsgReceive.SenderId );
    printf("Sporocilo: %s\n", MsgReceive.Message );
  }
  msgctl( MsgId, IPC_RMID, 0 ); /* to se nikoli ne izvrsi */
  exit( 0 );
}