mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-20 03:50:07 +00:00
41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
70 lines
2.2 KiB
C
70 lines
2.2 KiB
C
/* Copyright (C) 1991, 92, 93, 94, 95, 96, 97 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, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <hurd.h>
|
|
#include <hurd/paths.h>
|
|
#include <fcntl.h>
|
|
|
|
/* Make a link to FROM called TO. */
|
|
int
|
|
__symlink (from, to)
|
|
const char *from;
|
|
const char *to;
|
|
{
|
|
error_t err;
|
|
file_t dir, node;
|
|
char *name;
|
|
const size_t len = strlen (from) + 1;
|
|
char buf[sizeof (_HURD_SYMLINK) + len];
|
|
|
|
/* A symlink is a file whose translator is "/hurd/symlink\0target\0". */
|
|
|
|
memcpy (buf, _HURD_SYMLINK, sizeof (_HURD_SYMLINK));
|
|
memcpy (&buf[sizeof (_HURD_SYMLINK)], from, len);
|
|
|
|
dir = __file_name_split (to, &name);
|
|
if (dir == MACH_PORT_NULL)
|
|
return -1;
|
|
|
|
/* Create a new, unlinked node in the target directory. */
|
|
err = __dir_mkfile (dir, O_WRITE, 0777 & ~_hurd_umask, &node);
|
|
|
|
if (! err)
|
|
/* Set the node's translator to make it a symlink. */
|
|
err = __file_set_translator (node,
|
|
FS_TRANS_EXCL|FS_TRANS_SET,
|
|
FS_TRANS_EXCL|FS_TRANS_SET, 0,
|
|
buf, sizeof (_HURD_SYMLINK) + len,
|
|
MACH_PORT_NULL, MACH_MSG_TYPE_COPY_SEND);
|
|
|
|
if (! err)
|
|
/* Link the node, now a valid symlink, into the target directory. */
|
|
err = __dir_link (dir, node, name, 1);
|
|
|
|
__mach_port_deallocate (__mach_task_self (), dir);
|
|
__mach_port_deallocate (__mach_task_self (), node);
|
|
|
|
if (err)
|
|
return __hurd_fail (err);
|
|
return 0;
|
|
}
|
|
|
|
weak_alias (__symlink, symlink)
|