futimes, lutimes - change file timestamps
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.
On success, zero is returned. On error, -1 is returned, and
errno is set appropriately.
fd is not a valid file descriptor.
/proc filesystem could not be accessed.
The following additional error may occur for lutimes():
The kernel does not support this call; Linux 2.6.22 or later is required.
These functions are not specified in any standard. Other than Linux, they are available only on the BSDs.
This page is part of release 4.15 of the Linux
man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.