linux man page for futimes

FUTIMES(3)						     Linux Programmer's Manual							FUTIMES(3)

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 time-
       stamps 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 3.27 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/.

Linux								    2008-04-07								FUTIMES(3)