xwrite.c

来自「<B>Digital的Unix操作系统VAX 4.2源码</B>」· C语言 代码 · 共 25 行

#ifndef lint
static	char	*sccsid = "@(#)xwrite.c	4.1	(ULTRIX)	7/17/90";
#endif lint

# include "errno.h"

/*
	Interface to write which handles
	all error conditions.
	Returns number of bytes written on success,
	returns fatal(<mesg>) on failure.
*/

xwrite(fildes,buffer,nbytes)
char *buffer;
{
	register int n;

	if (nbytes>0 && (n=write(fildes,buffer,nbytes))!=nbytes)
		n = xmsg("","xwrite");
	return(n);
}