изменить временные метки файла относительно дескриптора файла каталога (change timestamps of a file relative to a directory file descriptor)
Имя (Name)
futimesat - change timestamps of a file relative to a directory
file descriptor
Синопсис (Synopsis)
#include <fcntl.h> /* Definition of AT_* constants */
#include <sys/time.h>
int futimesat(int dirfd, const char *pathname,
const struct timeval times[2]);
Feature Test Macro Requirements for glibc (see
feature_test_macros(7)):
futimesat():
_GNU_SOURCE
Описание (Description)
This system call is obsolete. Use utimensat(2) instead.
The futimesat() system call operates in exactly the same way as
utimes(2), except for the differences described in this manual
page.
If the pathname given in pathname is relative, then it is
interpreted relative to the directory referred to by the file
descriptor dirfd (rather than relative to the current working
directory of the calling process, as is done by utimes(2) for a
relative pathname).
If pathname is relative and dirfd is the special value AT_FDCWD,
then pathname is interpreted relative to the current working
directory of the calling process (like utimes(2)).
If pathname is absolute, then dirfd is ignored. (See openat(2)
for an explanation of why the dirfd argument is useful.)
Возвращаемое значение (Return value)
On success, futimesat() returns a 0. On error, -1 is returned
and errno is set to indicate the error.
Ошибки (Error)
The same errors that occur for utimes(2) can also occur for
futimesat(). The following additional errors can occur for
futimesat():
EBADF pathname is relative but dirfd is neither AT_FDCWD nor a
valid file descriptor.
ENOTDIR
pathname is relative and dirfd is a file descriptor
referring to a file other than a directory.
Версии (Versions)
futimesat() was added to Linux in kernel 2.6.16; library support
was added to glibc in version 2.4.
Стандарты (Conforming to)
This system call is nonstandard. It was implemented from a
specification that was proposed for POSIX.1, but that
specification was replaced by the one for utimensat(2).
A similar system call exists on Solaris.
Примечание (Note)
Glibc notes
If pathname is NULL, then the glibc futimesat() wrapper function
updates the times for the file referred to by dirfd.
Смотри также (See also)
stat(2), utimensat(2), utimes(2), futimes(3), path_resolution(7)
