| /* xmknod call using old-style Unix mknod system call. |
| Copyright (C) 1991-2014 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, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <errno.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <sys/sysmacros.h> |
| |
| #include <sysdep.h> |
| #include <sys/syscall.h> |
| |
| /* Create a device file named PATH, 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 |
| __xmknod (int vers, const char *path, mode_t mode, dev_t *dev) |
| { |
| unsigned long long int k_dev; |
| |
| if (vers != _MKNOD_VER) |
| { |
| __set_errno (EINVAL); |
| return -1; |
| } |
| |
| /* We must convert the value to dev_t type used by the kernel. */ |
| k_dev = (*dev) & ((1ULL << 32) - 1); |
| if (k_dev != *dev) |
| { |
| __set_errno (EINVAL); |
| return -1; |
| } |
| |
| return INLINE_SYSCALL (mknod, 3, path, mode, (unsigned int) k_dev); |
| } |
| |
| weak_alias (__xmknod, _xmknod) |
| libc_hidden_def (__xmknod) |
