1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
/* Copyright (C) 1991, 1992, 1993, 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 <errno.h>
#include <limits.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <hurd/fd.h>
/* Write formatted output to file descriptor D according to the format string
FORMAT, using the argument list in ARG. */
int
vdprintf (int d, const char *format, va_list arg)
{
int done;
FILE f;
struct hurd_fd *fd;
HURD_CRITICAL_BEGIN;
fd = _hurd_fd_get (d);
HURD_CRITICAL_END;
if (!fd)
return 0;
/* Create an unbuffered stream talking to D on the stack. */
memset ((void *) &f, 0, sizeof (f));
f.__magic = _IOMAGIC;
f.__mode.__write = 1;
f.__cookie = fd;
f.__room_funcs = __default_room_functions;
f.__io_funcs = __default_io_functions;
f.__seen = 1;
f.__userbuf = 1;
/* vfprintf will use a buffer on the stack for the life of the call,
and flush it when finished. */
done = vfprintf (&f, format, arg);
return done;
}
|
