#include "syslib.h"

int sys_vircopy(src_proc, src_vir, 
	dst_proc, dst_vir, bytes, flags)
endpoint_t src_proc;		/* source process */
vir_bytes src_vir;		/* source virtual address */
endpoint_t dst_proc;		/* destination process */
vir_bytes dst_vir;		/* destination virtual address */
phys_bytes bytes;		/* how many bytes */
int flags;			/* copy flags */
{
/* Transfer a block of data.  The source and destination can each either be a
 * process number or SELF (to indicate own process number).
 */

  message copy_mess;

  if (bytes == 0L) return(OK);
  memset(&copy_mess, 0, sizeof(copy_mess));
  copy_mess.CP_SRC_ENDPT = src_proc;
  copy_mess.CP_SRC_ADDR = (long) src_vir;
  copy_mess.CP_DST_ENDPT = dst_proc;
  copy_mess.CP_DST_ADDR = (long) dst_vir;
  copy_mess.CP_NR_BYTES = (long) bytes;
  copy_mess.CP_FLAGS = flags;

  return(_kernel_call(SYS_VIRCOPY, &copy_mess));
}