mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-27 11:55:06 +00:00
97 lines
3.2 KiB
Groff
97 lines
3.2 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.
|
|
.\"
|
|
.\" @(#)getfh.2 8.1 (Berkeley) 6/9/93
|
|
.\"
|
|
.Dd June 9, 1993
|
|
.Dt GETFH 2
|
|
.Os
|
|
.Sh NAME
|
|
.Nm getfh
|
|
.Nd get file handle
|
|
.Sh SYNOPSIS
|
|
.Fd #include <sys/types.h>
|
|
.Fd #include <sys/mount.h>
|
|
.Ft int
|
|
.Fn getfh "char *path" "fhandle_t *fhp"
|
|
.Sh DESCRIPTION
|
|
.Fn Getfh
|
|
returns a file handle for the specified file or directory
|
|
in the file handle pointed to by
|
|
.Fa fhp .
|
|
This system call is restricted to the superuser.
|
|
.Sh RETURN VALUES
|
|
Upon successful completion, a value of 0 is returned.
|
|
Otherwise, -1 is returned and the global variable
|
|
.Va errno
|
|
is set to indicate the error.
|
|
.Sh ERRORS
|
|
.Fn Getfh
|
|
fails if one or more of the following are true:
|
|
.Bl -tag -width Er
|
|
.It Bq ENOTDIR
|
|
A component of the path prefix of
|
|
.Fa path
|
|
is not a directory.
|
|
.It Bq EINVAL
|
|
.Fa path
|
|
contains a character with the high-order bit set.
|
|
.It Bq ENAMETOOLONG
|
|
The length of a component of
|
|
.Fa path
|
|
exceeds 255 characters,
|
|
or the length of
|
|
.Fa path
|
|
exceeds 1023 characters.
|
|
.It Bq ENOENT
|
|
The file referred to by
|
|
.Fa path
|
|
does not exist.
|
|
.It Bq EACCES
|
|
Search permission is denied for a component of the path prefix of
|
|
.Fa path .
|
|
.It Bq ELOOP
|
|
Too many symbolic links were encountered in translating
|
|
.Fa path .
|
|
.It Bq EFAULT
|
|
.Fa Fhp
|
|
points to an invalid address.
|
|
.It Bq EIO
|
|
An
|
|
.Tn I/O
|
|
error occurred while reading from or writing to the file system.
|
|
.El
|
|
.Sh HISTORY
|
|
The
|
|
.Nm getfh
|
|
function
|
|
first appeared in 4.4BSD.
|