glibc/sysdeps/mach/hurd/fchownat.c

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/* Change owner and group of a file relative to open directory. Hurd version.
Copyright (C) 2006 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
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include <fcntl.h>
#include <stddef.h>
#include <unistd.h>
#include <sys/types.h>
#include <hurd.h>
#include <hurd/fd.h>
/* Change the owner and group of FILE. */
int
fchownat (fd, file, owner, group, flag)
int fd;
const char *file;
uid_t owner;
gid_t group;
int flag;
{
error_t err;
file_t port = __file_name_lookup_at (fd, flag, file, 0, 0);
if (port == MACH_PORT_NULL)
return -1;
err = __file_chown (port, owner, group);
__mach_port_deallocate (__mach_task_self (), port);
if (err)
return __hurd_fail (err);
return 0;
}