diff options
Diffstat (limited to 'REORG.TODO/sysdeps/unix/sysv/linux/xmknodat.c')
-rw-r--r-- | REORG.TODO/sysdeps/unix/sysv/linux/xmknodat.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/xmknodat.c b/REORG.TODO/sysdeps/unix/sysv/linux/xmknodat.c new file mode 100644 index 0000000000..ee96be18f3 --- /dev/null +++ b/REORG.TODO/sysdeps/unix/sysv/linux/xmknodat.c @@ -0,0 +1,47 @@ +/* Copyright (C) 2005-2017 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 <fcntl.h> +#include <stdio.h> +#include <string.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 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 *file, mode_t mode, dev_t *dev) +{ + if (vers != _MKNOD_VER) + return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL); + + /* We must convert the value to dev_t type used by the kernel. */ + unsigned long long int k_dev = (*dev) & ((1ULL << 32) - 1); + if (k_dev != *dev) + return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL); + + return INLINE_SYSCALL (mknodat, 4, fd, file, mode, (unsigned int) k_dev); +} + +libc_hidden_def (__xmknodat) |