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+.\" Copyright (c) 1990, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)utimes.2	8.1 (Berkeley) 6/4/93
+.\"
+.Dd June 4, 1993
+.Dt UTIMES 2
+.Os BSD 4
+.Sh NAME
+.Nm utimes
+.Nd set file access and modification times
+.Sh SYNOPSIS
+.Fd #include <sys/time.h>
+.Ft int
+.Fn utimes "const char *file" "const struct timeval *times"
+.Sh DESCRIPTION
+The
+.Fn utimes
+function sets the access and modification times of the named file from
+the structures in the argument array
+.Fa times .
+.Pp
+The first structure is the access time, and the second is the modification
+time.
+.Pp
+If the times are specified (the
+.Fa times
+argument is
+.Pf non- Dv NULL )
+the caller must be the owner of the file or be the super-user.
+.Pp
+If the times are not specified (the
+.Fa times
+argument is
+.Dv NULL )
+the caller must be the owner of the file, have permission to
+write the file, or be the super-user.
+.Sh RETURN VALUES
+Upon successful completion, a value of 0 is returned.
+Otherwise, a value of -1 is returned and
+.Va errno
+is set to indicate the error.
+.Sh ERRORS
+.Fn Utimes
+will fail if:
+.Bl -tag -width Er
+.It Bq Er EACCES
+Search permission is denied for a component of the path prefix;
+or the
+.Fa times
+argument is
+.Dv NULL
+and the effective user ID of the process does not
+match the owner of the file, and is not the super-user, and write
+access is denied.
+.It Bq Er EFAULT
+.Xr File
+or
+.Fa times
+points outside the process's allocated address space.
+.It Bq Er EINVAL
+The pathname contains a character with the high-order bit set.
+.It Bq Er EIO
+An I/O error occurred while reading or writing the affected inode.
+.It Bq Er ELOOP
+Too many symbolic links were encountered in translating the pathname.
+.It Bq Er ENAMETOOLONG
+A component of a pathname exceeded 255 characters,
+or an entire path name exceeded 1023 characters.
+.It Bq Er ENOENT
+The named file does not exist.
+.It Bq Er ENOTDIR
+A component of the path prefix is not a directory.
+.It Bq Er EPERM
+The
+.Fa times
+argument is not
+.Dv NULL
+and the calling process's effective user ID
+does not match the owner of the file and is not the super-user.
+.It Bq Er EROFS
+The file system containing the file is mounted read-only.
+.El
+.Sh SEE ALSO
+.Xr stat 2
+.Sh HISTORY
+The
+.Nm utimes
+function call appeared in
+.Bx 4.2 .