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authorRoland McGrath <roland@gnu.org>2006-03-06 07:59:23 +0000
committerRoland McGrath <roland@gnu.org>2006-03-06 07:59:23 +0000
commit16a10468376803c5e48ac9c14cfa1a1dd2f7ec8f (patch)
tree2e014adc76adfee74ff4580a1568017f6eae9299 /sysdeps/mach/hurd/xmknodat.c
parent7d013a64de1cada889f3db5da793a7b965e87ac1 (diff)
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* 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/xmknodat.c')
-rw-r--r--sysdeps/mach/hurd/xmknodat.c118
1 files changed, 118 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/xmknodat.c b/sysdeps/mach/hurd/xmknodat.c
new file mode 100644
index 0000000000..b2227593c9
--- /dev/null
+++ b/sysdeps/mach/hurd/xmknodat.c
@@ -0,0 +1,118 @@
+/* Create a device file relative to an open directory. Hurd version.
+ Copyright (C) 1991,1992,1993,1994,1995,1996,1999,2002,2005,2006
+ 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 <sys/stat.h>
+#include <hurd.h>
+#include <hurd/fd.h>
+#include <hurd/paths.h>
+#include <fcntl.h>
+#include "stdio-common/_itoa.h"
+#include <string.h>
+#include <sys/types.h>
+
+/* Create a device file named PATH relative to FD, with permission and
+ special bits MODE and device number DEV (which can be constructed
+ from major and minor device numbers with the `makedev' macro
+ above). */
+int
+__xmknodat (int vers, int fd, const char *path, mode_t mode, dev_t *dev)
+{
+ error_t err;
+ file_t dir, node;
+ char *name;
+ char buf[100], *bp;
+ const char *translator;
+ size_t len;
+
+ if (vers != _MKNOD_VER)
+ return __hurd_fail (EINVAL);
+
+ if (S_ISCHR (mode))
+ {
+ translator = _HURD_CHRDEV;
+ len = sizeof (_HURD_CHRDEV);
+ }
+ else if (S_ISBLK (mode))
+ {
+ translator = _HURD_BLKDEV;
+ len = sizeof (_HURD_BLKDEV);
+ }
+ else if (S_ISFIFO (mode))
+ {
+ translator = _HURD_FIFO;
+ len = sizeof (_HURD_FIFO);
+ }
+ else if (S_ISREG (mode))
+ {
+ translator = NULL;
+ len = 0;
+ }
+ else
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
+ if (translator != NULL && ! S_ISFIFO (mode))
+ {
+ /* We set the translator to "ifmt\0major\0minor\0", where IFMT
+ depends on the S_IFMT bits of our MODE argument, and MAJOR and
+ MINOR are ASCII decimal (octal or hex would do as well)
+ representations of our arguments. Thus the convention is that
+ CHRDEV and BLKDEV translators are invoked with two non-switch
+ arguments, giving the major and minor device numbers in %i format. */
+
+ bp = buf + sizeof (buf);
+ *--bp = '\0';
+ bp = _itoa (minor (*dev), bp, 10, 0);
+ *--bp = '\0';
+ bp = _itoa (major (*dev), bp, 10, 0);
+ memcpy (bp - len, translator, len);
+ translator = bp - len;
+ len = buf + sizeof (buf) - translator;
+ }
+
+ dir = __file_name_split_at (fd, path, &name);
+ if (dir == MACH_PORT_NULL)
+ return -1;
+
+ /* Create a new, unlinked node in the target directory. */
+ err = __dir_mkfile (dir, O_WRITE, (mode & ~S_IFMT) & ~_hurd_umask, &node);
+
+ if (! err && translator != NULL)
+ /* Set the node's translator to make it a device. */
+ err = __file_set_translator (node,
+ FS_TRANS_EXCL | FS_TRANS_SET,
+ FS_TRANS_EXCL | FS_TRANS_SET, 0,
+ translator, len,
+ MACH_PORT_NULL, MACH_MSG_TYPE_COPY_SEND);
+
+ if (! err)
+ /* Link the node, now a valid device, 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;
+}