mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-26 11:47:31 +00:00
109 lines
2.9 KiB
Groff
109 lines
2.9 KiB
Groff
.\" -*- nroff -*-
|
|
.\"
|
|
.\" Copyright (c) 1996 Doug Rabson
|
|
.\"
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" This program is free software.
|
|
.\"
|
|
.\" 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.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``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 DEVELOPERS 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.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd July 24, 1996
|
|
.Os
|
|
.Dt VOP_REMOVE 9
|
|
.Sh NAME
|
|
.Nm VOP_REMOVE ,
|
|
.Nm VOP_RMDIR
|
|
.Nd remove a file or directory
|
|
.Sh SYNOPSIS
|
|
.In sys/param.h
|
|
.In sys/vnode.h
|
|
.Ft int
|
|
.Fn VOP_REMOVE "struct vnode *dvp" "struct vnode *vp" "struct componentname *cnp"
|
|
.Ft int
|
|
.Fn VOP_RMDIR "struct vnode *dvp" "struct vnode *vp" "struct componentname *cnp"
|
|
.Sh DESCRIPTION
|
|
These entry points remove files and directories respectively.
|
|
.Pp
|
|
The arguments are:
|
|
.Bl -tag -width dvp
|
|
.It Ar dvp
|
|
the vnode of the directory
|
|
.It Ar vp
|
|
the vnode of the file to be removed
|
|
.It Ar cnp
|
|
pathname information about the file
|
|
.El
|
|
.Sh LOCKS
|
|
Both
|
|
.Fa dvp
|
|
and
|
|
.Fa vp
|
|
should be locked on entry and remain locked on return.
|
|
.Sh RETURN VALUES
|
|
Zero is returned on success, otherwise an error code is returned.
|
|
.Sh PSEUDOCODE
|
|
.Bd -literal
|
|
int
|
|
vop_remove(struct vnode *dvp, struct vnode *vp, struct componentname *cnp)
|
|
{
|
|
int error = 0;
|
|
|
|
if (vp is immutable) {
|
|
error = EPERM;
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* Remove name cnp->cn_nameptr from directory and update link count
|
|
* of vp.
|
|
*/
|
|
...;
|
|
|
|
/*
|
|
* Careful about trying to remove ".". XXX this should be handled
|
|
* higher up.
|
|
*/
|
|
if (dvp == vp)
|
|
vrele(vp);
|
|
else
|
|
vput(vp);
|
|
vput(dvp);
|
|
|
|
return error;
|
|
}
|
|
.Ed
|
|
.Sh ERRORS
|
|
.Bl -tag -width Er
|
|
.It Bq Er EPERM
|
|
the file is immutable
|
|
.It Bq Er ENOTEMPTY
|
|
attempt to remove a directory which is not empty
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr vnode 9 ,
|
|
.Xr VOP_LOOKUP 9
|
|
.Sh AUTHORS
|
|
This man page was written by
|
|
.An Doug Rabson .
|