1MKDIRAT(2)                 Linux Programmer's Manual                MKDIRAT(2)
2
3
4

NAME

6       mkdirat - create a directory relative to a directory file descriptor
7

SYNOPSIS

9       #include <fcntl.h> /* Definition of AT_* constants */
10       #include <sys/stat.h>
11
12       int mkdirat(int dirfd, const char *pathname, mode_t mode);
13
14   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
15
16       mkdirat():
17       Since glibc 2.10: _XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L
18       Before glibc 2.10: _ATFILE_SOURCE
19

DESCRIPTION

21       The mkdirat() system call operates in exactly the same way as mkdir(2),
22       except for the differences described in this manual page.
23
24       If the pathname given in pathname is relative, then it  is  interpreted
25       relative  to  the  directory  referred  to by the file descriptor dirfd
26       (rather than relative to the current working directory of  the  calling
27       process, as is done by mkdir(2) for a relative pathname).
28
29       If  pathname  is relative and dirfd is the special value AT_FDCWD, then
30       pathname is interpreted relative to the current  working  directory  of
31       the calling process (like mkdir(2)).
32
33       If pathname is absolute, then dirfd is ignored.
34

RETURN VALUE

36       On success, mkdirat() returns 0.  On error, -1 is returned and errno is
37       set to indicate the error.
38

ERRORS

40       The same errors that occur for mkdir(2) can also occur  for  mkdirat().
41       The following additional errors can occur for mkdirat():
42
43       EBADF  dirfd is not a valid file descriptor.
44
45       ENOTDIR
46              pathname is relative and dirfd is a file descriptor referring to
47              a file other than a directory.
48

VERSIONS

50       mkdirat() was added to Linux in kernel 2.6.16.
51

CONFORMING TO

53       POSIX.1-2008.
54

NOTES

56       See openat(2) for an explanation of the need for mkdirat().
57

SEE ALSO

59       mkdir(2), openat(2), path_resolution(7)
60

COLOPHON

62       This page is part of release 3.25 of the Linux  man-pages  project.   A
63       description  of  the project, and information about reporting bugs, can
64       be found at http://www.kernel.org/doc/man-pages/.
65
66
67
68Linux                             2009-12-13                        MKDIRAT(2)
Impressum