glibc/sysdeps/mach/hurd/unlinkat.c

52 lines
1.5 KiB
C

/* unlinkat -- Remove a name relative to an open directory. Hurd version.
Copyright (C) 2006-2016 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 <hurd.h>
#include <hurd/fd.h>
/* Remove the link named NAME. */
int
unlinkat (int fd, const char *name, int flag)
{
error_t err;
file_t dir;
const char *file;
if ((flag &~ AT_REMOVEDIR) != 0)
{
__set_errno (EINVAL);
return -1;
}
dir = __directory_name_split_at (fd, name, (char **) &file);
if (dir == MACH_PORT_NULL)
return -1;
err = ((flag & AT_REMOVEDIR) ? __dir_rmdir : __dir_unlink) (dir, file);
__mach_port_deallocate (__mach_task_self (), dir);
if (err)
return __hurd_fail (err);
return 0;
}