futimesat() - Unix, Linux System Call
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NAME
futimes - change timestamps of a file relative to a directory file descriptor
SYNOPSIS
#include <fcntl.h>
int futimesat(int dirfd, const char *path,
const struct timeval times[2]);
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DESCRIPTION
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 the pathname given in
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 the pathname given in
pathname is absolute, then
dirfd is ignored.
RETURN VALUE
On success,
futimesat() returns a 0.
On error, -1 is returned and
errno is set to indicate the error.
ERRORS
The same errors that occur for
utimes(2)
can also occur for
futimesat(). The following additional errors can occur for
futimesat():
Tag | Description |
EBADF |
dirfd is not a valid file descriptor.
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ENOTDIR |
pathname is a relative path and
dirfd is a file descriptor referring to a file other than a directory.
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CONFORMING TO
This system call is non-standard but is proposed
for inclusion in a future revision of POSIX.1.
A similar system call exists on Solaris.
GLIBC NOTES
If the path argument is NULL, then the glibc
futimes() wrapper function updates the times for the file referred to by
dirfd.
VERSIONS
futimesat() was added to Linux in kernel 2.6.16.
SEE ALSO
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