61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
/* Copyright (C) 1991, 1994 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
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <ansidecl.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.h>
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static ssize_t
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DEFUN(pwrite, (cookie, buf, n),
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PTR cookie AND CONST char *buf AND size_t n)
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{
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error_t error = __io_write ((io_t) cookie, buf, n, -1,
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(mach_msg_type_number_t *) &n);
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if (error)
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return __hurd_fail (error);
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return n;
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}
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/* Write formatted output to PORT, a Mach port supporting the i/o protocol,
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according to the format string FORMAT, using the argument list in ARG. */
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int
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DEFUN(vpprintf, (port, format, arg),
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io_t port AND CONST char *format AND va_list arg)
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{
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int done;
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FILE f;
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/* Create an unbuffered stream talking to PORT on the stack. */
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memset((PTR) &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 = (PTR) port;
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f.__room_funcs = __default_room_functions;
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f.__io_funcs.__write = pwrite;
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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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done = vfprintf(&f, format, arg);
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return done;
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}
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