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lutimes.3

FUTIMES

Section: Linux Programmer's Manual (3)
Updated: 2008-04-07
Index Return to Main Contents
 

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 3.21 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/.


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
VERSIONS
CONFORMING TO
SEE ALSO
COLOPHON

 

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