#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#define PROJECTID 0xABCDEF
int main( void )
{
  key_t key;
  int id,size,flag;
  struct shmid_ds buffer;
  key = ftok( "/tmp",PROJECTID );
  flag = IPC_CREAT | 0x100 | 0x80;
  size = 1024*64;
  id = shmget( key,size,flag );
  if( id>0 )
    {
    printf( "SEGMENT [key=0x%x,id=%u],process=%u\n", id,(unsigned)key,(unsigned)getpid() ); 
    (void)shmctl( id,IPC_STAT,&buffer );
    printf( "właściciel %u\n",(unsigned)(buffer.shm_cpid) );
    printf( "rozmiar %u [B]\n",(unsigned)(buffer.shm_segsz) );
    printf( "%s\n",ctime( &(buffer.shm_ctime) ) );
    (void)shmctl( id,IPC_RMID,&buffer );
    }
  else{ perror( "!.!.!..shmget()..." ); exit( 1 ); }
  return 0;
}