Manpage of FUTIMESAT

FUTIMESAT

Section: Linux Programmer's Manual (2)
Updated: 2012-05-10
Index
 

NAME

futimesat - change timestamps of a file relative to a directory file descriptor  

SYNOPSIS

#include <fcntl.h>           /* Definition of AT_* constants */#include <sys/time.h>int futimesat(int dirfd, const char *pathname,              const struct timeval times[2]);

Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

futimesat(): _GNU_SOURCE  

DESCRIPTION

This system call is obsolete. Use utimensat(2) instead.

The futimesat() system call operates in exactly the same way as utimes(2), except for the differences described in this manual page.

If the pathname given in pathnameis 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 utimes(2) for a relative pathname).

If pathnameis relative and dirfdis the special value AT_FDCWD, then pathnameis interpreted relative to the current working directory of the calling process (like utimes(2)).

If pathnameis absolute, then dirfdis ignored.  

RETURN VALUE

On success, futimesat() returns a 0. On error, -1 is returned and errnois set to indicate the error.  

ERRORS

The same errors that occur for utimes(2) can also occur for futimesat(). The following additional errors can occur for futimesat():
EBADF
dirfdis not a valid file descriptor.
ENOTDIR
pathnameis relative and dirfdis a file descriptor referring to a file other than a directory.
 

VERSIONS

futimesat() was added to Linux in kernel 2.6.16; library support was added to glibc in version 2.4.  

CONFORMING TO

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 utimensat(2).

A similar system call exists on Solaris.  

NOTES

 

Glibc notes

If pathnameis NULL, then the glibc futimesat() wrapper function updates the times for the file referred to by dirfd.  

SEE ALSO

stat(2), utimensat(2), utimes(2), futimes(3), path_resolution(7)


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
VERSIONS
CONFORMING TO
NOTES
Glibc notes
SEE ALSO

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