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/* vprint.c -- v[fs]printf() for 4.[23] BSD systems. */
/* Copyright (C) 1987,1989 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
Bash is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Bash is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Bash. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#if defined (USE_VFPRINTF_EMULATION)
#include <stdio.h>
#if !defined (NULL)
# if defined (__STDC__)
# define NULL ((void *)0)
# else
# define NULL 0x0
# endif /* __STDC__ */
#endif /* !NULL */
/*
* Beware! Don't trust the value returned by either of these functions; it
* seems that pre-4.3-tahoe implementations of _doprnt () return the first
* argument, i.e. a char *.
*/
#include <varargs.h>
int
vfprintf (iop, fmt, ap)
FILE *iop;
char *fmt;
va_list ap;
{
int len;
char localbuf[BUFSIZ];
if (iop->_flag & _IONBF)
{
iop->_flag &= ~_IONBF;
iop->_ptr = iop->_base = localbuf;
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);
return (ferror (iop) ? EOF : len);
}
/*
* Ditto for vsprintf
*/
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);
}
#endif /* USE_VFPRINTF_EMULATION */
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