58 lines
1.8 KiB
C
58 lines
1.8 KiB
C
/* Copyright (C) 1991, 1992, 1993, 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <errno.h>
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#include <limits.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <string.h>
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#include <hurd/fd.h>
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/* Write formatted output to file descriptor D according to the format string
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FORMAT, using the argument list in ARG. */
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int
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vdprintf (int d, const char *format, va_list arg)
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{
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int done;
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FILE f;
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struct hurd_fd *fd;
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HURD_CRITICAL_BEGIN;
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fd = _hurd_fd_get (d);
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HURD_CRITICAL_END;
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if (!fd)
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return 0;
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/* Create an unbuffered stream talking to D on the stack. */
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memset ((void *) &f, 0, sizeof (f));
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f.__magic = _IOMAGIC;
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f.__mode.__write = 1;
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f.__cookie = fd;
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f.__room_funcs = __default_room_functions;
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f.__io_funcs = __default_io_functions;
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f.__seen = 1;
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f.__userbuf = 1;
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/* vfprintf will use a buffer on the stack for the life of the call,
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and flush it when finished. */
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done = vfprintf (&f, format, arg);
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return done;
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}
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