strerror.c

<B>Digital的Unix操作系统VAX 4.2源码</B>

/*	@(#)strerror.c	4.1	ULTRIX	7/3/90	*/
/************************************************************************
 *									*
 *			Copyright (c) 1989 by				*
 *		Digital Equipment Corporation, Maynard, MA		*
 *			All rights reserved.				*
 *									*
 *   This software is furnished under a license and may be used and	*
 *   copied  only  in accordance with the terms of such license and	*
 *   with the  inclusion  of  the  above  copyright  notice.   This	*
 *   software  or  any  other copies thereof may not be provided or	*
 *   otherwise made available to any other person.  No title to and	*
 *   ownership of the software is hereby transferred.			*
 *									*
 *   The information in this software is subject to change  without	*
 *   notice  and should not be construed as a commitment by Digital	*
 *   Equipment Corporation.						*
 *									*
 *   Digital assumes no responsibility for the use  or  reliability	*
 *   of its software on equipment which is not supplied by Digital.	*
 *									*
 ************************************************************************/
/*
	Return pointer to relevant entry in sys_errlist; required by
	ANSI X3J11.

	--Jon Reeves, June 1989.

*/

extern	char	*sys_errlist[];
extern	int	sys_nerr;

char *
strerror(n)
	register int	n;
{
	return ( (n < sys_nerr) ? sys_errlist[n] : "Unknown error");
}