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/* Copyright (C) 1991, 1994, 1997 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., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <hurd.h>
static ssize_t
pwrite (void *cookie,
const char *buf,
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
vpprintf (io_t port,
const char *format,
va_list arg)
{
int done;
FILE f;
/* Create an unbuffered stream talking to PORT on the stack. */
memset ((void *) &f, 0, sizeof (f));
f.__magic = _IOMAGIC;
f.__mode.__write = 1;
f.__cookie = (void *) 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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