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 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  utimen-
       sat(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 3.25 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)