niread.c

来自「读取/刻录光盘的程序」· C语言 代码 · 共 35 行

/* @(#)niread.c	1.5 96/02/04 Copyright 1986 J. Schilling */
/*
 *	Copyright (c) 1986 J. Schilling
 */
/* This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; see the file COPYING.  If not, write to
 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. 
 */

#include <stdio.h>
#include "io.h"
#include <errno.h>

int _niread(f, buf, count)
	int	f;
	void	*buf;
	int	count;
{
	int ret;
 
	while((ret = read(f, buf, count)) < 0 && errno == EINTR)
		;
	return(ret);
}