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.\" Copyright (c) 1996 Doug Rabson
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.Dd July 24, 1996
.Dt VOP_RENAME 9
.Os
.Sh NAME
.Nm VOP_RENAME
.Nd rename a file
.Sh SYNOPSIS
.In sys/param.h
.In sys/vnode.h
.Ft int
.Fn VOP_RENAME "struct vnode *fdvp" "struct vnode *fvp" "struct componentname *fcnp" "struct vnode *tdvp" "struct vnode *tvp" "struct componentname *tcnp"
.Sh DESCRIPTION
This renames a file and possibly changes its parent directory.
If the destination object exists, it will be removed first.
.Pp
Its arguments are:
.Bl -tag -width fdvp
.It Fa fdvp
The vnode of the old parent directory.
.It Fa fvp
The vnode of the file to be renamed.
.It Fa fcnp
Pathname information about the file's current name.
.It Fa tdvp
The vnode of the new parent directory.
.It Fa tvp
The vnode of the target file (if it exists).
.It Fa tcnp
Pathname information about the file's new name.
.El
.Sh LOCKS
The source directory and file are unlocked but are expected to have their
ref count bumped on entry.
The VOP routine is expected to
.Xr vrele 9
both prior
to returning.
.Pp
The destination directory and file are locked as well as having their ref
count bumped.
The VOP routine is expected to
.Xr vput 9
both prior to
returning.
.Sh ERRORS
.Bl -tag -width Er
.It Bq Er EPERM
The file is immutable.
.It Bq Er EXDEV
It is not possible to rename a file between different file systems.
.It Bq Er EINVAL
An attempt was made to rename
.Pa \&.
or
.Pa .. ,
or to perform an operation which would break the directory tree structure.
.It Bq Er ENOTDIR
An attempt was made to rename a directory to a file or vice versa.
.It Bq Er ENOTEMPTY
An attempt was made to remove a directory which is not empty.
.El
.Sh SEE ALSO
.Xr vnode 9
.Sh AUTHORS
This manual page was written by
.An Doug Rabson .