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/* _hurd_fd_write -- write to a file descriptor; handles job control et al.
Copyright (C) 1993-2025 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, see
<https://www.gnu.org/licenses/>. */
#include <errno.h>
#include <unistd.h>
#include <hurd.h>
#include <hurd/fd.h>
error_t
_hurd_fd_write (struct hurd_fd *fd,
const void *buf, size_t *nbytes, loff_t offset)
{
error_t err;
vm_size_t wrote;
error_t writefd (io_t port)
{
return __io_write (port, buf, *nbytes, offset, &wrote);
}
err = HURD_FD_PORT_USE_CANCEL (fd, _hurd_ctty_output (port, ctty, writefd));
if (err)
return err;
if (__glibc_unlikely (wrote > *nbytes)) /* Sanity check for bogus server. */
return EGRATUITOUS;
*nbytes = wrote;
return 0;
}
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