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]); |
![[Note]](../stylesheet/note.png) |
Note | ||
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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
-
fdis not a valid file descriptor. - ENOSYS
-
The
/procfilesystem could not be accessed.
The following additional error may occur for lutimes():
- ENOSYS
-
The kernel does not support this call; Linux 2.6.22 or later is required.
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 available only on the BSDs.
COLOPHON
This page is part of release 3.54 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/.
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