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import lite-2

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This commit is contained in:
perry 1998-02-02 03:44:25 +00:00
parent 3da5be9552
commit 41bd4766f6
3 changed files with 129 additions and 40 deletions
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36
lib/libc/sys/getdirentries.3
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@ -1,5 +1,3 @@
.\" $NetBSD: getdirentries.3,v 1.1 1997/10/20 16:04:30 christos Exp $
.\"
.\" Copyright (c) 1989, 1991, 1993
.\" The Regents of the University of California. All rights reserved.
.\"
@ -31,27 +29,19 @@
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" @(#)getdirentries.2 8.1 (Berkeley) 6/9/93
.\" @(#)getdirentries.2 8.2 (Berkeley) 5/3/95
.\"
.Dd June 9, 1993
.Dt GETDIRENTRIES 3
.Dd May 3, 1995
.Dt GETDIRENTRIES 2
.Os
.Sh NAME
.Nm getdirentries
.Nd "get directory entries in a filesystem independent format"
.Sh SYNOPSIS
.Fd #include <dirent.h>
.Fd #include <sys/dirent.h>
.Ft int
.Fn getdirentries "int fd" "char *buf" "int nbytes" "long *basep"
.Sh DESCRIPTION
.Sh DESCRIPTION
.Bf -symbolic
.\" This interface is available from the compatibility library, libcompat and
This interface is provided for compatibility only and
has been obsoleted by
.Xr getdents 2 .
.Ef
.Pp
.Fn Getdirentries
reads directory entries from the directory
referenced by the file descriptor
@ -77,7 +67,8 @@ structures each containing the following entries:
.Bd -literal -offset indent
unsigned long d_fileno;
unsigned short d_reclen;
unsigned short d_namlen;
unsigned char d_type;
unsigned char d_namlen;
char d_name[MAXNAMELEN + 1]; /* see below */
.Ed
.Pp
@ -93,6 +84,11 @@ The
.Fa d_reclen
entry is the length, in bytes, of the directory record.
The
.Fa d_type
entry is the type of the file pointed to by the directory record.
The file type values are defined in
.Fa <sys/dirent.h> .
The
.Fa d_name
entry contains a null terminated file name.
The
@ -138,17 +134,17 @@ is set to indicate the error.
.Sh ERRORS
.Fn Getdirentries
will fail if:
.Bl -tag -width Er
.It Bq Er EBADF
.Bl -tag -width [EFAULT]
.It EBADF
.Fa fd
is not a valid file descriptor open for reading.
.It Bq Er EFAULT
.It EFAULT
Either
.Fa buf
or
.Fa basep
point outside the allocated address space.
.It Bq Er EIO
.It EIO
An
.Tn I/O
error occurred while reading from or writing to the file system.
@ -158,5 +154,5 @@ error occurred while reading from or writing to the file system.
.Xr lseek 2
.Sh HISTORY
The
.Fn getdirentries
.Nm getdirentries
function first appeared in 4.4BSD.

28
lib/libc/sys/swapon.3
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@ -1,5 +1,3 @@
.\" $NetBSD: swapon.3,v 1.1 1997/10/20 16:04:31 christos Exp $
.\"
.\" Copyright (c) 1980, 1991, 1993
.\" The Regents of the University of California. All rights reserved.
.\"
@ -34,7 +32,7 @@
.\" @(#)swapon.2 8.1 (Berkeley) 6/4/93
.\"
.Dd June 4, 1993
.Dt SWAPON 3
.Dt SWAPON 2
.Os BSD 4
.Sh NAME
.Nm swapon
@ -44,13 +42,6 @@
.Ft int
.Fn swapon "const char *special"
.Sh DESCRIPTION
.Bf -symbolic
.\" This interface is available from the compatibility library, libcompat and
This interface is provided for compatibility only and
has been obsoleted by
.Xr swapctl 2 .
.Ef
.Pp
.Fn Swapon
makes the block device
.Fa special
@ -68,15 +59,14 @@ is set to indicate the error.
.Sh ERRORS
.Fn Swapon
succeeds unless:
.Bl -tag -width Er
.Bl -tag -width ENAMETOOLONG
.It Bq Er ENOTDIR
A component of the path prefix is not a directory.
.It Bq Er EINVAL
The pathname contains a character with the high-order bit set.
.It Bq Er ENAMETOOLONG
A component of a pathname exceeded
.Dv {NAME_MAX}
characters, or an entire path name exceeded
.Dv {PATH_MAX}
characters.
A component of a pathname exceeded 255 characters,
or an entire path name exceeded 1023 characters.
.It Bq Er ENOENT
The named device does not exist.
.It Bq Er EACCES
@ -118,8 +108,6 @@ dismounted.
This call will be upgraded in future versions of the system.
.Sh HISTORY
The
.Fn swapon
.Nm
function call appeared in
.Bx 4.0
and was removed
.Nx 1.3
.Bx 4.0 .

105
lib/libc/sys/undelete.2 Normal file
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@ -0,0 +1,105 @@
.\" Copyright (c) 1994
.\" Jan-Simon Pendry
.\" 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.
.\"
.\" @(#)undelete.2 8.4 (Berkeley) 10/18/94
.\"
.Dd October 18, 1994
.Dt UNDELETE 2
.Os BSD 4
.Sh NAME
.Nm undelete
.Nd attempt to recover a deleted file
.Sh SYNOPSIS
.Fd #include <unistd.h>
.Ft int
.Fn undelete "const char *path"
.Sh DESCRIPTION
The
.Fn undelete
function attempts to recover the deleted file named by
.Fa path .
Currently, this works only when the named object
is a whiteout in a union filesystem.
The system call removes the whiteout causing
any objects in a lower layer of the
union stack to become visible once more.
.Pp
Eventually, the
.Nm undelete
functionality may be expanded to other filesystems able to recover
deleted files such as the log-structured filesystem.
.Sh RETURN VALUES
Upon successful completion, a value of 0 is returned.
Otherwise, a value of -1 is returned and
.Va errno
is set to indicate the error.
.Sh ERRORS
The
.Fn undelete
succeeds unless:
.Bl -tag -width ENAMETOOLONGAA
.It Bq Er ENOTDIR
A component of the path prefix is not a directory.
.It Bq Er EINVAL
The pathname contains a character with the high-order bit set.
.It Bq Er ENAMETOOLONG
A component of a pathname exceeded 255 characters,
or an entire path name exceeded 1023 characters.
.It Bq Er EEXIST
The path does not reference a whiteout.
.It Bq Er ENOENT
The named whiteout does not exist.
.It Bq Er EACCES
Search permission is denied for a component of the path prefix.
.It Bq Er EACCES
Write permission is denied on the directory containing the name
to be undeleted.
.It Bq Er ELOOP
Too many symbolic links were encountered in translating the pathname.
.It Bq Er EPERM
The directory containing the name is marked sticky,
and the containing directory is not owned by the effective user ID.
.It Bq Er EIO
An I/O error occurred while updating the directory entry.
.It Bq Er EROFS
The name resides on a read-only file system.
.It Bq Er EFAULT
.Fa Path
points outside the process's allocated address space.
.El
.Sh SEE ALSO
.Xr unlink 2 ,
.Xr mount_union 8
.Sh HISTORY
An
.Nm undelete
function call first appeared in 4.4BSD-Lite.