1/* Copyright (C) 1991-2022 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18#include <errno.h>
19#include <fcntl.h>
20#include <stddef.h>
21#include <sys/stat.h>
22#include <sys/types.h>
23
24
25/* Create a directory named PATH relative to FD with protections MODE. */
26int
27mkdirat (int fd, const char *path, mode_t mode)
28{
29 if (path == NULL)
30 {
31 __set_errno (EINVAL);
32 return -1;
33 }
34
35 if (fd != AT_FDCWD && path[0] != '/')
36 {
37 /* Check FD is associated with a directory. */
38 struct stat64 st;
39 if (__fstat64 (fd, &st) != 0)
40 return -1;
41
42 if (!S_ISDIR (st.st_mode))
43 {
44 __set_errno (ENOTDIR);
45 return -1;
46 }
47 }
48
49 __set_errno (ENOSYS);
50 return -1;
51}
52stub_warning (mkdirat)
53

source code of glibc/io/mkdirat.c