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/* -*-comment-start: "//";comment-end:""-*-
* GNU Mes --- Maxwell Equations of Software
* Copyright © 2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
*
* This file is part of GNU Mes.
*
* GNU Mes is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or (at
* your option) any later version.
*
* GNU Mes 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
*/
/** Commentary:
Inspired by implementation in GNU C Library:
_hurd_fd_write -- write to a file descriptor; handles job control et al.
Copyright (C) 1993-2016 Free Software Foundation, Inc.
*/
#include <errno.h>
#include <unistd.h>
#include <gnu/hurd.h>
#include <gnu/syscall.h>
error_t
fd_write (mach_port_t port, void const *buffer, size_t *size, loff_t offset)
{
mach_msg_type_number_t wrote = 0;
error_t err = __io_write (port, buffer, *size, 0, &wrote);
if (! err)
*size = wrote;
return err;
}
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