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/* This is file VFPRINTF.C */
/* This file may have been modified by DJ Delorie (Jan 1991). If so,
** these modifications are Coyright (C) 1991 DJ Delorie, 24 Kirsten Ave,
** Rochester NH, 03867-2954, USA.
*/
/*
* Copyright (c) 1988 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted provided
* that: (1) source distributions retain this entire copyright notice and
* comment, and (2) distributions including binaries display the following
* acknowledgement: ``This product includes software developed by the
* University of California, Berkeley and its contributors'' in the
* documentation or other materials provided with the distribution and in
* all advertising materials mentioning features or use of this software.
* Neither the name of the University nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)vfprintf.c 5.4 (Berkeley) 6/30/90";
#endif /* LIBC_SCCS and not lint */
#include <stdio.h>
#include <stdarg.h>
int
vfprintf(FILE *iop, const char *fmt, ...)
{
va_list ap;
int len;
char localbuf[BUFSIZ];
va_start (ap, fmt);
if (iop->_flag & _IONBF) {
iop->_flag &= ~_IONBF;
iop->_ptr = iop->_base = localbuf;
iop->_bufsiz = BUFSIZ;
len = _doprnt(fmt, ap, iop);
(void)fflush(iop);
iop->_flag |= _IONBF;
iop->_base = NULL;
iop->_bufsiz = 0;
iop->_cnt = 0;
} else
len = _doprnt(fmt, ap, iop);
va_start (ap, fmt);
return (ferror(iop) ? EOF : len);
}