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16a1046837
* sysdeps/mach/hurd/fchmodat.c: New file.
* sysdeps/mach/hurd/fchownat.c: New file.
* sysdeps/mach/hurd/fxstatat.c: New file.
* sysdeps/mach/hurd/fxstatat64.c: New file.
* sysdeps/mach/hurd/linkat.c: New file.
* sysdeps/mach/hurd/mkdirat.c: New file.
* sysdeps/mach/hurd/openat.c: New file.
* sysdeps/mach/hurd/openat64.c: New file.
* sysdeps/mach/hurd/symlinkat.c: New file.
* sysdeps/mach/hurd/unlinkat.c: New file.
* sysdeps/mach/hurd/xmknod.c (__xmknod): Just call __xmknodat.
Guts move to ...
* sysdeps/mach/hurd/xmknodat.c: ... here, new file.
* hurd/lookup-at.c: New file.
* hurd/Makefile (routines): Add it.
* hurd/hurd/fd.h: Declare __file_name_lookup_at,
__file_name_split_at and __directory_name_split_at.
* hurd/hurd/lookup.h: Declare {,__}hurd_directory_name_split.
* hurd/hurdlookup.c (__hurd_directory_name_split): Use __memrchr
unconditionally.
* sysdeps/mach/hurd/open.c: Define {,__,__libc_,}open64 as aliases.
* sysdeps/mach/hurd/open64.c: New file.
75 lines
2.3 KiB
C
75 lines
2.3 KiB
C
/* Create a symbolic link named relative to an open directory. Hurd version.
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Copyright (C) 1991,1992,1993,1994,1995,1996,1997,2006
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Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <errno.h>
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#include <fcntl.h>
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#include <stddef.h>
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#include <unistd.h>
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#include <hurd.h>
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#include <hurd/paths.h>
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#include <hurd/fd.h>
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#include <string.h>
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/* Make a link to FROM called TO relative to FD. */
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int
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symlinkat (from, fd, to)
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const char *from;
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int fd;
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const char *to;
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{
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error_t err;
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file_t dir, node;
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char *name;
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const size_t len = strlen (from) + 1;
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char buf[sizeof (_HURD_SYMLINK) + len];
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/* A symlink is a file whose translator is "/hurd/symlink\0target\0". */
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memcpy (buf, _HURD_SYMLINK, sizeof (_HURD_SYMLINK));
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memcpy (&buf[sizeof (_HURD_SYMLINK)], from, len);
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dir = __file_name_split_at (fd, to, &name);
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if (dir == MACH_PORT_NULL)
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return -1;
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/* Create a new, unlinked node in the target directory. */
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err = __dir_mkfile (dir, O_WRITE, 0777 & ~_hurd_umask, &node);
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if (! err)
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/* Set the node's translator to make it a symlink. */
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err = __file_set_translator (node,
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FS_TRANS_EXCL|FS_TRANS_SET,
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FS_TRANS_EXCL|FS_TRANS_SET, 0,
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buf, sizeof (_HURD_SYMLINK) + len,
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MACH_PORT_NULL, MACH_MSG_TYPE_COPY_SEND);
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if (! err)
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/* Link the node, now a valid symlink, into the target directory. */
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err = __dir_link (dir, node, name, 1);
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__mach_port_deallocate (__mach_task_self (), dir);
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__mach_port_deallocate (__mach_task_self (), node);
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if (err)
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return __hurd_fail (err);
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return 0;
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}
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