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/* Copyright (C) 1991, 1994 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <hurd.h>
static ssize_t
DEFUN(pwrite, (cookie, buf, n),
PTR cookie AND CONST char *buf AND size_t n)
{
error_t error = __io_write ((io_t) cookie, buf, n, -1,
(mach_msg_type_number_t *) &n);
if (error)
return __hurd_fail (error);
return n;
}
/* Write formatted output to PORT, a Mach port supporting the i/o protocol,
according to the format string FORMAT, using the argument list in ARG. */
int
DEFUN(vpprintf, (port, format, arg),
io_t port AND CONST char *format AND va_list arg)
{
int done;
FILE f;
/* Create an unbuffered stream talking to PORT on the stack. */
memset((PTR) &f, 0, sizeof(f));
f.__magic = _IOMAGIC;
f.__mode.__write = 1;
f.__cookie = (PTR) port;
f.__room_funcs = __default_room_functions;
f.__io_funcs.__write = pwrite;
f.__seen = 1;
f.__userbuf = 1;
/* vfprintf will use a buffer on the stack for the life of the call. */
done = vfprintf(&f, format, arg);
return done;
}
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