MKDIRAT(2) Linux Programmer's Manual MKDIRAT(2)NAMEmkdirat - create a directory relative to a directory file descriptor
SYNOPSIS
#include <sys/stat.h>
int mkdirat(int dirfd, const char *pathname, mode_t mode);
DESCRIPTION
The mkdirat() system call operates in exactly the same way as mkdir(2),
except for the differences described in this manual page.
If the pathname given in pathname is relative, then it is interpreted
relative to the directory referred to by the file descriptor dirfd
(rather than relative to the current working directory of the calling
process, as is done by mkdir(2) for a relative pathname).
If the pathname given in pathname is relative and dirfd is the special
value AT_FDCWD, then pathname is interpreted relative to the current
working directory of the calling process (like mkdir(2)).
If the pathname given in pathname is absolute, then dirfd is ignored.
RETURN VALUE
On success, mkdirat() returns 0. On error, -1 is returned and errno is
set to indicate the error.
ERRORS
The same errors that occur for mkdir(2) can also occur for mkdirat().
The following additional errors can occur for mkdirat():
EBADF dirfd is not a valid file descriptor.
ENOTDIR
pathname is a relative path and dirfd is a file descriptor
referring to a file other than a directory.
NOTES
See openat(2) for an explanation of the need for mkdirat().
CONFORMING TO
This system call is non-standard but is proposed for inclusion in a
future revision of POSIX.1.
VERSIONSmkdirat() was added to Linux in kernel 2.6.16.
SEE ALSOmkdir(2), openat(2), path_resolution(2)Linux 2.6.16 2006-04-06 MKDIRAT(2)
