vsprintf.c

<B>Digital的Unix操作系统VAX 4.2源码</B>

#ifndef lint
static	char	*sccsid = "@(#)vsprintf.c	4.1	(ULTRIX)	7/3/90";
#endif lint

/************************************************************************
 *									*
 *			Copyright (c) 1985 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.			*
 *									*
 *   This software is  derived  from  software  received  from  the	*
 *   University    of   California,   Berkeley,   and   from   Bell	*
 *   Laboratories.  Use, duplication, or disclosure is  subject  to	*
 *   restrictions  under  license  agreements  with  University  of	*
 *   California and with AT&T.						*
 *									*
 *   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.	*
 *									*
 ************************************************************************/
/************************************************************************
 *			Modification History				*
 *									*
 *	David L Ballenger, 30-Mar-1985					*
 * 0001	Change to work in ULTRIX environment				*
 *									*
 ************************************************************************/

/*	@(#)vsprintf.c	1.1	*/
/*LINTLIBRARY*/
#include <stdio.h>
#include <varargs.h>
#include <values.h>

extern int _doprnt();

/*VARARGS2*/
int
vsprintf(string, format, ap)
char *string, *format;
va_list ap;
{
	register int count;
	FILE siop;

	siop._cnt = MAXINT;
	siop._base = siop._ptr = string;
	siop._flag = _IOWRT | _IOSTRG ;
	siop._file = _NFILE;
	count = _doprnt(format, ap, &siop);
	*siop._ptr = '\0'; /* plant terminating null character */
	return(count);
}