1.\" -*- nroff -*- 2.\" 3.\" Copyright (c) 1996 Doug Rabson 4.\" 5.\" All rights reserved. 6.\" 7.\" This program is free software. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR 19.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21.\" IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT, 22.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28.\" 29.Dd March 30, 2020 30.Dt VOP_READLINK 9 31.Os 32.Sh NAME 33.Nm VOP_READLINK 34.Nd read the target of a symbolic link 35.Sh SYNOPSIS 36.In sys/param.h 37.In sys/vnode.h 38.In sys/uio.h 39.Ft int 40.Fn VOP_READLINK "struct vnode *vp" "struct uio *uio" "struct ucred *cred" 41.Sh DESCRIPTION 42This reads the target pathname of a symbolic link 43.Bl -tag -width uio 44.It Fa vp 45The vnode of the symlink. 46.It Fa uio 47The location of the data to be read or written. 48.It Fa cred 49The credentials of the caller. 50.El 51.Sh LOCKS 52The vnode should be locked on entry and will still be locked on exit. 53.Sh RETURN VALUES 54Zero is returned on success, otherwise an error code is returned. 55.Sh ERRORS 56.Bl -tag -width Er 57.It Bq Er EIO 58A read error occurred while reading the contents of the symlink. 59.It Bq Er EINTEGRITY 60Corrupted data was detected while reading the contents of the symlink. 61.El 62.Sh SEE ALSO 63.Xr uiomove 9 , 64.Xr vnode 9 65.Sh AUTHORS 66This manual page was written by 67.An Doug Rabson . 68