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:
18               _XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L
19           Before glibc 2.10:
20               _ATFILE_SOURCE
21

DESCRIPTION

23       The mkdirat() system call operates in exactly the same way as mkdir(2),
24       except for the differences described in this manual page.
25
26       If the pathname given in pathname is relative, then it  is  interpreted
27       relative  to  the  directory  referred  to by the file descriptor dirfd
28       (rather than relative to the current working directory of  the  calling
29       process, as is done by mkdir(2) for a relative pathname).
30
31       If  pathname  is relative and dirfd is the special value AT_FDCWD, then
32       pathname is interpreted relative to the current  working  directory  of
33       the calling process (like mkdir(2)).
34
35       If pathname is absolute, then dirfd is ignored.
36

RETURN VALUE

38       On success, mkdirat() returns 0.  On error, -1 is returned and errno is
39       set to indicate the error.
40

ERRORS

42       The same errors that occur for mkdir(2) can also occur  for  mkdirat().
43       The following additional errors can occur for mkdirat():
44
45       EBADF  dirfd is not a valid file descriptor.
46
47       ENOTDIR
48              pathname is relative and dirfd is a file descriptor referring to
49              a file other than a directory.
50

VERSIONS

52       mkdirat() was added to Linux in  kernel  2.6.16;  library  support  was
53       added to glibc in version 2.4.
54

CONFORMING TO

56       POSIX.1-2008.
57

NOTES

59       See openat(2) for an explanation of the need for mkdirat().
60

SEE ALSO

62       mkdir(2), openat(2), path_resolution(7)
63

COLOPHON

65       This  page  is  part of release 3.53 of the Linux man-pages project.  A
66       description of the project, and information about reporting  bugs,  can
67       be found at http://www.kernel.org/doc/man-pages/.
68
69
70
71Linux                             2012-05-04                        MKDIRAT(2)
Impressum