From 16a10468376803c5e48ac9c14cfa1a1dd2f7ec8f Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Mon, 6 Mar 2006 07:59:23 +0000 Subject: * 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. --- sysdeps/mach/hurd/xmknodat.c | 118 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 118 insertions(+) create mode 100644 sysdeps/mach/hurd/xmknodat.c (limited to 'sysdeps/mach/hurd/xmknodat.c') 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 +#include +#include +#include +#include +#include +#include "stdio-common/_itoa.h" +#include +#include + +/* 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; +} -- cgit v1.2.3