Section: Linux Programmer's Manual (2)
futimesat - change timestamps of a file relative to a directory file descriptor
#include <fcntl.h> /* Definition of AT_* constants */
int futimesat(int dirfd, const char *pathname,
const struct timeval times);
Feature Test Macro Requirements for glibc (see
This system call is obsolete.
system call operates in exactly the same way as
except for the differences described in this manual page.
If the pathname given in
is relative, then it is interpreted relative to the directory
referred to by the file descriptor
(rather than relative to the current working directory of
the calling process, as is done by
for a relative pathname).
is relative and
is the special value
is interpreted relative to the current working
directory of the calling process (like
is absolute, then
returns a 0.
On error, -1 is returned and
is set to indicate the error.
The same errors that occur for
can also occur for
The following additional errors can occur for
is not a valid file descriptor.
is relative and
is a file descriptor referring to a file other than a directory.
was added to Linux in kernel 2.6.16;
library support was added to glibc in version 2.4.
This system call is nonstandard.
It was implemented from a specification that was proposed for POSIX.1,
but that specification was replaced by the one for
A similar system call exists on Solaris.
is NULL, then the glibc
wrapper function updates the times for the file referred to by
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