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/* Copyright (C) 1991,94,97,2000,01 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 Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; 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>
#ifdef USE_IN_LIBIO
# include <libioP.h>
#endif
static ssize_t
do_write (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;
#ifdef USE_IN_LIBIO
struct locked_FILE
{
struct _IO_cookie_file cfile;
#ifdef _IO_MTSAFE_IO
_IO_lock_t lock;
#endif
} temp_f;
#ifdef _IO_MTSAFE_IO
temp_f.cfile.__fp.file._lock = &temp_f.lock;
#endif
_IO_cookie_init (&temp_f.cfile, _IO_NO_READS,
(void *) port, (cookie_io_functions_t) { write: do_write });
done = _IO_vfprintf (&temp_f.cfile.__fp.file, format, arg);
#else
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 = do_write;
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);
#endif
return done;
}
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