mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-30 12:04:07 +00:00
fbc400a67a
track.
The $Id$ line is normally at the bottom of the main comment block in the
man page, separated from the rest of the manpage by an empty comment,
like so;
.\" $Id$
.\"
If the immediately preceding comment is a @(#) format ID marker than the
the $Id$ will line up underneath it with no intervening blank lines.
Otherwise, an additional blank line is inserted.
Approved by: bde
117 lines
3.5 KiB
Groff
117 lines
3.5 KiB
Groff
.\" Copyright (c) 1989, 1991, 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.
|
|
.\"
|
|
.\" @(#)setmode.3 8.2 (Berkeley) 4/28/95
|
|
.\" $Id$
|
|
.\"
|
|
.Dd April 28, 1995
|
|
.Dt SETMODE 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm getmode ,
|
|
.Nm setmode
|
|
.Nd modify mode bits
|
|
.Sh SYNOPSIS
|
|
.Fd #include <unistd.h>
|
|
.Ft mode_t
|
|
.Fn getmode "const void *set" "mode_t mode"
|
|
.Ft void *
|
|
.Fn setmode "const char *mode_str"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn getmode
|
|
function
|
|
returns a copy of the file permission bits
|
|
.Fa mode
|
|
as altered by the values pointed to by
|
|
.Fa set .
|
|
While only the mode bits are altered, other parts of the file mode
|
|
may be examined.
|
|
.Pp
|
|
The
|
|
.Fn setmode
|
|
function
|
|
takes an absolute (octal) or symbolic value, as described in
|
|
.Xr chmod 1 ,
|
|
as an argument
|
|
and returns a pointer to mode values to be supplied to
|
|
.Fn getmode .
|
|
Because some of the symbolic values are relative to the file
|
|
creation mask,
|
|
.Fn setmode
|
|
may call
|
|
.Xr umask 2 .
|
|
If this occurs, the file creation mask will be restored before
|
|
.Fn setmode
|
|
returns.
|
|
If the calling program changes the value of its file creation mask
|
|
after calling
|
|
.Fn setmode ,
|
|
.Fn setmode
|
|
must be called again if
|
|
.Fn getmode
|
|
is to modify future file modes correctly.
|
|
.Pp
|
|
If the mode passed to
|
|
.Fn setmode
|
|
is invalid or if memory cannot be allocated for the return value,
|
|
.Fn setmode
|
|
returns
|
|
.Dv NULL .
|
|
.Pp
|
|
The value returned from
|
|
.Fn setmode
|
|
is obtained from
|
|
.Fn malloc
|
|
and should be returned to the system with
|
|
.Fn free
|
|
when the program is done with it, generally after a call to
|
|
.Fn getmode .
|
|
.Sh ERRORS
|
|
The
|
|
.Fn setmode
|
|
function
|
|
may fail and set errno for any of the errors specified for the library
|
|
routine
|
|
.Xr malloc 3 .
|
|
.Sh SEE ALSO
|
|
.Xr chmod 1 ,
|
|
.Xr stat 2 ,
|
|
.Xr umask 2 ,
|
|
.Xr malloc 3
|
|
.Sh HISTORY
|
|
The
|
|
.Fn getmode
|
|
and
|
|
.Fn setmode
|
|
functions first appeared in
|
|
.Bx 4.4 .
|