NAME
futimes, lutimes - change file timestamps
SYNOPSIS
#include <sys/time.h>
int futimes(int fd, const struct timeval tv[2]);
int lutimes(const char *filename, const struct timeval tv[2]);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
futimes(), lutimes(): _BSD_SOURCE
DESCRIPTION
futimes() changes the access and modification times of a file in the
same way as utimes(2), with the difference that the file whose
timestamps are to be changed is specified via a file descriptor, fd,
rather than via a pathname.
lutimes() changes the access and modification times of a file in the
same way as utimes(2), with the difference that if filename refers to a
symbolic link, then the link is not dereferenced: instead, the
timestamps of the symbolic link are changed.
RETURN VALUE
On success, zero is returned. On error, -1 is returned, and errno is
set appropriately.
ERRORS
Errors are as for utimes(2), with the following additions for
futimes():
EBADF fd is not a valid file descriptor.
ENOSYS The /proc file system could not be accessed.
VERSIONS
futimes() is available since glibc 2.3. lutimes() is available since
glibc 2.6, and is implemented using the utimensat(2) system call, which
is supported since kernel 2.6.22.
CONFORMING TO
These functions are not specified in any standard. Other than Linux,
they are only available on the BSDs.
SEE ALSO
utimensat(2), utime(2), symlink(7)
COLOPHON
This page is part of release 3.24 of the Linux man-pages project. A
description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.