text: #ifndef __SYS_UIO_H__
  #define __SYS_UIO_H__
  
  #ifndef _BSD_EXTENSION
      This header file is an extension to ANSI/POSIX
  #endif
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  #pragma lib "/$M/lib/ape/libbsd.a"
  
  /*
   * Copyright (c) 1982, 1986 Regents of the University of California.
   * All rights reserved.  The Berkeley software License Agreement
   * specifies the terms and conditions for redistribution.
   *
   *	@(#)uio.h	7.1 (Berkeley) 6/4/86
   */
  
  struct iovec {
  	char	*iov_base;
  	int	iov_len;
  };
  
  extern int writev(int, struct iovec*, int);
  extern int readv(int, struct iovec*, int);
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* !__SYS_UIO_H__ */
  