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From: ralf@ptavv.ka.sub.org (Ralf Wenk)
Newsgroups: comp.os.minix
Subject: vfprintf problem
Message-ID: <1991Feb5.180022.01726@ptavv.ka.sub.org>
Date: 5 Feb 91 18:00:22 GMT
Organization: The known space
Lines: 33

Hello *,
could someone explain what I am doing wrong ?
The following call of vfprintf() will cause a core dump when doing
_doprintf(). My system is MINIX ST 1.5.10.2.

#include <stdarg.h>
#include <stdio.h>

FILE *log;
char line[LINESIZE+1];

void lprintf ( ctl, argp )
char *ctl;
va_list argp;
{
  vfprintf( log, ctl, argp );
}	/* lprintf */

Down in the source lprintf() is called like this:

lprintf("batch from %s", line );

Is is also interesting, that changing the call to vfprintf( log, ctl, &argp )
will fix it. Do I misunderstand how to use stdarg.h or is this an MINIX ST
problem ?
I just use it the way vsprintf() uses it.

Many thanks,
	Ralf Wenk

-- 
-- 
Ralf Wenk -- ralf@ptavv.ka.sub.org