Xref: utzoo comp.sources.games.bugs:895 comp.lang.c:19869
Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!cwjcc!kiwi!chet
From: chet@kiwi.CWRU.EDU (Chet Ramey)
Newsgroups: comp.sources.games.bugs,comp.lang.c
Subject: Re: vsprintf undefined
Keywords: vsprintf varargs
Message-ID: <411@cwjcc.CWRU.Edu>
Date: 12 Jul 89 14:31:58 GMT
References: <3171@puff.UUCP>
Sender: news@cwjcc.CWRU.Edu
Reply-To: chet@kiwi.CWRU.EDU (Chet Ramey)
Followup-To: comp.sources.games.bugs
Organization: CWRU Andrew R. Jennings Computing Center
Lines: 35

In article <3171@puff.UUCP> kschnitz@puff.UUCP (Soccer Stud) writes:
>
>Help!  This function came with the tetris game I got for Unix based
>machines.  The problem is vsprintf is undefined using my C libraries.
>
>Does anyone have a simple solution?  Please post the answer because
>others have had the same problem.  Thanks in advance.
>

This is the version of vsprintf that appears on uunet as part of the 
4.3-tahoe freed files.

#include <stdio.h>
#include <varargs.h>

int
vsprintf(str, fmt, ap)
	char *str, *fmt;
	va_list ap;
{
	FILE f;
	int len;

	f._flag = _IOWRT+_IOSTRG;
	f._ptr = str;
	f._cnt = 32767;
	len = _doprnt(fmt, ap, &f);
	*f._ptr = 0;
	return (len);
}

Chet Ramey			"We are preparing to think about contemplating 
Network Services Group, CWRU	 preliminary work on plans to develop a
chet@cwjcc.INS.CWRU.Edu		 schedule for producing the 10th Edition of 
				 the Unix Programmers Manual." -- Andrew Hume