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.\" Hey Emacs! This file is -*- nroff -*- source.
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.\"
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.\" This manpage is Copyright (C) 2006, Michael Kerrisk
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.\"
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.\" Permission is granted to make and distribute verbatim copies of this
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.\" manual provided the copyright notice and this permission notice are
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.\" preserved on all copies.
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.\"
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.\" Permission is granted to copy and distribute modified versions of this
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.\" manual under the conditions for verbatim copying, provided that the
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.\" entire resulting derived work is distributed under the terms of a
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.\" permission notice identical to this one.
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2007-04-12 22:42:49 +00:00
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.\"
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2006-05-02 00:05:35 +00:00
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.\" Since the Linux kernel and libraries are constantly changing, this
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.\" manual page may be incorrect or out-of-date. The author(s) assume no
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.\" responsibility for errors or omissions, or for damages resulting from
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.\" the use of the information contained herein. The author(s) may not
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.\" have taken the same level of care in the production of this manual,
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.\" which is licensed free of charge, as they might when working
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.\" professionally.
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2007-04-12 22:42:49 +00:00
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.\"
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2006-05-02 00:05:35 +00:00
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.\" Formatted or processed versions of this manual, if unaccompanied by
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.\" the source, must acknowledge the copyright and authors of this work.
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.\"
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.\"
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2008-06-02 14:12:37 +00:00
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.TH FUTIMESAT 2 2008-06-05 "Linux" "Linux Programmer's Manual"
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.SH NAME
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futimesat \- change timestamps of a file relative to a \
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directory file descriptor
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.SH SYNOPSIS
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.nf
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2007-03-01 02:31:08 +00:00
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.B #define _ATFILE_SOURCE
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2007-10-08 18:45:41 +00:00
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.B #include <fcntl.h> /* Definition of AT_* constants */
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.sp
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.BI "int futimesat(int " dirfd ", const char *" pathname ,
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.BI " const struct timeval " times [2]);
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.fi
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.SH DESCRIPTION
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This system call is obsolete.
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Use
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.BR utimensat (2)
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instead.
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2006-05-02 00:05:35 +00:00
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The
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.BR futimesat ()
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system call operates in exactly the same way as
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.BR utimes (2),
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except for the differences described in this manual page.
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2007-04-12 22:42:49 +00:00
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If the pathname given in
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.I pathname
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is relative, then it is interpreted relative to the directory
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referred to by the file descriptor
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.I dirfd
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(rather than relative to the current working directory of
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the calling process, as is done by
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.BR utimes (2)
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for a relative pathname).
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2006-08-09 09:08:01 +00:00
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If
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.I pathname
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is relative and
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.I dirfd
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is the special value
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.BR AT_FDCWD ,
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then
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.I pathname
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is interpreted relative to the current working
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directory of the calling process (like
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.BR utimes (2)).
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2006-08-09 09:08:01 +00:00
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If
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.I pathname
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is absolute, then
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.I dirfd
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is ignored.
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.SH "RETURN VALUE"
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On success,
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.BR futimesat ()
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returns a 0.
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On error, \-1 is returned and
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.I errno
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is set to indicate the error.
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.SH ERRORS
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The same errors that occur for
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.BR utimes (2)
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can also occur for
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.BR futimesat ().
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The following additional errors can occur for
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.BR futimesat ():
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.TP
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.B EBADF
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.I dirfd
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is not a valid file descriptor.
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.TP
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.B ENOTDIR
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.I pathname
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is relative and
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.I dirfd
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is a file descriptor referring to a file other than a directory.
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.SH VERSIONS
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.BR futimesat ()
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was added to Linux in kernel 2.6.16.
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.SH "CONFORMING TO"
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This system call is non-standard.
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It was implemented from a specification that was proposed POSIX.1,
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but that specification was replaced by the one for
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.BR utimensat(2).
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2006-05-02 00:05:35 +00:00
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A similar system call exists on Solaris.
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2007-05-18 10:30:02 +00:00
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.SH NOTES
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.SS Glibc Notes
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2006-08-09 09:08:01 +00:00
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If
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.I pathname
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is NULL, then the glibc
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2007-05-11 23:07:02 +00:00
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.BR futimesat ()
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wrapper function updates the times for the file referred to by
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.IR dirfd .
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.\" The Solaris futimesat() also has this strangeness.
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.SH "SEE ALSO"
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.BR stat (2),
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.BR utimensat (2),
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.BR utimes (2),
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.BR futimes (3),
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.BR path_resolution (7)
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