1 /* Create a special or ordinary file. Linux version.
2 Copyright (C) 2020-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19 #include <sys/types.h>
20 #include <sys/stat.h>
21 #include <errno.h>
22 #include <sysdep.h>
23
24 int
__mknodat(int fd,const char * path,mode_t mode,dev_t dev)25 __mknodat (int fd, const char *path, mode_t mode, dev_t dev)
26 {
27 /* The user-exported dev_t is 64-bit while the kernel interface is
28 32-bit. */
29 unsigned int k_dev = dev;
30 if (k_dev != dev)
31 return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
32
33 return INLINE_SYSCALL_CALL (mknodat, fd, path, mode, k_dev);
34 }
35 libc_hidden_def (__mknodat)
36 weak_alias (__mknodat, mknodat)
37