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author | Roland McGrath <roland@gnu.org> | 2006-03-06 07:59:23 +0000 |
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committer | Roland McGrath <roland@gnu.org> | 2006-03-06 07:59:23 +0000 |
commit | 16a10468376803c5e48ac9c14cfa1a1dd2f7ec8f (patch) | |
tree | 2e014adc76adfee74ff4580a1568017f6eae9299 /sysdeps/mach/hurd/symlinkat.c | |
parent | 7d013a64de1cada889f3db5da793a7b965e87ac1 (diff) | |
download | glibc-16a10468376803c5e48ac9c14cfa1a1dd2f7ec8f.tar.gz glibc-16a10468376803c5e48ac9c14cfa1a1dd2f7ec8f.tar.xz glibc-16a10468376803c5e48ac9c14cfa1a1dd2f7ec8f.zip |
* sysdeps/mach/hurd/faccessat.c: New file.
* 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.
Diffstat (limited to 'sysdeps/mach/hurd/symlinkat.c')
-rw-r--r-- | sysdeps/mach/hurd/symlinkat.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/symlinkat.c b/sysdeps/mach/hurd/symlinkat.c new file mode 100644 index 0000000000..9a51c66d8d --- /dev/null +++ b/sysdeps/mach/hurd/symlinkat.c @@ -0,0 +1,74 @@ +/* Create a symbolic link named relative to an open directory. Hurd version. + Copyright (C) 1991,1992,1993,1994,1995,1996,1997,2006 + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <errno.h> +#include <fcntl.h> +#include <stddef.h> +#include <unistd.h> +#include <hurd.h> +#include <hurd/paths.h> +#include <hurd/fd.h> +#include <string.h> + + +/* Make a link to FROM called TO relative to FD. */ +int +symlinkat (from, fd, to) + const char *from; + int fd; + 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_at (fd, 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; +} |