1MKDIRAT(2)                 Linux Programmer's Manual                MKDIRAT(2)
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NAME

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

9       #define _ATFILE_SOURCE
10       #include <fcntl.h> /* Definition of AT_* constants */
11       #include <sys/stat.h>
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13       int mkdirat(int dirfd, const char *pathname, mode_t mode);
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DESCRIPTION

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

31       On success, mkdirat() returns 0.  On error, -1 is returned and errno is
32       set to indicate the error.
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ERRORS

35       The same errors that occur for mkdir(2) can also occur  for  mkdirat().
36       The following additional errors can occur for mkdirat():
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38       EBADF  dirfd is not a valid file descriptor.
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40       ENOTDIR
41              pathname is relative and dirfd is a file descriptor referring to
42              a file other than a directory.
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VERSIONS

45       mkdirat() was added to Linux in kernel 2.6.16.
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CONFORMING TO

48       POSIX.1-2008.
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NOTES

51       See openat(2) for an explanation of the need for mkdirat().
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SEE ALSO

54       mkdir(2), openat(2), path_resolution(7)
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COLOPHON

57       This page is part of release 3.22 of the Linux  man-pages  project.   A
58       description  of  the project, and information about reporting bugs, can
59       be found at http://www.kernel.org/doc/man-pages/.
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63Linux                             2008-08-21                        MKDIRAT(2)
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