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 times- tamps 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 times- tamps 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 3.22 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)