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freebsd-dev/usr.sbin/extattr/rmextattr.8

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Add the new userland tool for manipulating extended attributes. This will replace the existing getextattr(8) and setextattr(8) with a single binary responding to the names getextattr, setextattr, rmextattr and lsextattr. This program is not yet connected to the build. Sponsored by: DARPA and NAI Labs.
2002-08-30 08:53:03 +00:00
.\"-
.\" Copyright (c) 2000, 2001 Robert N. M. Watson
.\" Copyright (c) 2002 Networks Associates Technology, Inc.
.\" All rights reserved.
.\"
.\" This software was developed for the FreeBSD Project by Poul-Henning
.\" Kamp and Network Associates Laboratories, the Security Research Division
.\" of Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
.\" ("CBOSS"), as part of the DARPA CHATS research program
.\"
.\" 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 AUTHOR 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 AUTHOR 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.
.\"
.\" $FreeBSD$
.\"
Allow setextattr(8) to take attribute values from stdin Add the -i option to setextattr. This option allow extended attribute data to be provided via stdin. Add a -qq option to getextattr, which omits the trailing newline. Together these options can be used to work with extended attributes whose values are large and/or binary. usr.sbin/extattr/Makefile: Link against libsbuf which is used for processing stdin data. usr.sbin/extattr/rmextattr.8: Document setextattr's -i option, getextattr's -qq option, and remove the BUG about setextattr only being useful for strings. usr.sbin/extattr/rmextattr.c: For setextattr operations, buffer attribute data in an sbuf. If -i is specified, pull the data from stdin, otherwise from the appropriate argurment. Update usage text and argument validation code for setextattr's -i option. usr.sbin/extattr/tests/extattr_test.sh Add tests for -q and -i. Reviewed by: wblock (manpage) MFC after: 4 weeks Sponsored by: Spectra Logic Corp Differential Revision: https://reviews.freebsd.org/D6090
2016-05-04 20:20:55 +00:00
.Dd April 27, 2016
Add the new userland tool for manipulating extended attributes. This will replace the existing getextattr(8) and setextattr(8) with a single binary responding to the names getextattr, setextattr, rmextattr and lsextattr. This program is not yet connected to the build. Sponsored by: DARPA and NAI Labs.
2002-08-30 08:53:03 +00:00
.Dt RMEXTATTR 8
.Os
.Sh NAME
.Nm getextattr ,
.Nm lsextattr ,
.Nm rmextattr ,
.Nm setextattr
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.Nd manipulate extended attributes
Add the new userland tool for manipulating extended attributes. This will replace the existing getextattr(8) and setextattr(8) with a single binary responding to the names getextattr, setextattr, rmextattr and lsextattr. This program is not yet connected to the build. Sponsored by: DARPA and NAI Labs.
2002-08-30 08:53:03 +00:00
.Sh SYNOPSIS
.Nm getextattr
Add -h flags to each of the *extattr(8) commands, indicating that the command should not follow the symlink if the target file is a symlink. Invoke the extattr_*_link(2) version of the system call in that situation, instead of extattr_*_file(2). This is consistent with other attribute management tools in the system. Obtained from: TrustedBSD Project Sponsored by: DARPA, Network Associates Laboratories
2002-10-10 16:47:21 +00:00
.Op Fl fhqsx
Add the new userland tool for manipulating extended attributes. This will replace the existing getextattr(8) and setextattr(8) with a single binary responding to the names getextattr, setextattr, rmextattr and lsextattr. This program is not yet connected to the build. Sponsored by: DARPA and NAI Labs.
2002-08-30 08:53:03 +00:00
.Ar attrnamespace
.Ar attrname
.Ar filename ...
.Nm lsextattr
Add -h flags to each of the *extattr(8) commands, indicating that the command should not follow the symlink if the target file is a symlink. Invoke the extattr_*_link(2) version of the system call in that situation, instead of extattr_*_file(2). This is consistent with other attribute management tools in the system. Obtained from: TrustedBSD Project Sponsored by: DARPA, Network Associates Laboratories
2002-10-10 16:47:21 +00:00
.Op Fl fhq
Add the new userland tool for manipulating extended attributes. This will replace the existing getextattr(8) and setextattr(8) with a single binary responding to the names getextattr, setextattr, rmextattr and lsextattr. This program is not yet connected to the build. Sponsored by: DARPA and NAI Labs.
2002-08-30 08:53:03 +00:00
.Ar attrnamespace
.Ar filename ...
.Nm rmextattr
Add -h flags to each of the *extattr(8) commands, indicating that the command should not follow the symlink if the target file is a symlink. Invoke the extattr_*_link(2) version of the system call in that situation, instead of extattr_*_file(2). This is consistent with other attribute management tools in the system. Obtained from: TrustedBSD Project Sponsored by: DARPA, Network Associates Laboratories
2002-10-10 16:47:21 +00:00
.Op Fl fhq
Add the new userland tool for manipulating extended attributes. This will replace the existing getextattr(8) and setextattr(8) with a single binary responding to the names getextattr, setextattr, rmextattr and lsextattr. This program is not yet connected to the build. Sponsored by: DARPA and NAI Labs.
2002-08-30 08:53:03 +00:00
.Ar attrnamespace
.Ar attrname
.Ar filename ...
.Nm setextattr
Document the -n option and fix manpage Fl usage. Obtained from: TrustedBSD Project Sponsored by: DARPA, Network Associates Laboratories
2002-10-10 17:19:43 +00:00
.Op Fl fhnq
Add the new userland tool for manipulating extended attributes. This will replace the existing getextattr(8) and setextattr(8) with a single binary responding to the names getextattr, setextattr, rmextattr and lsextattr. This program is not yet connected to the build. Sponsored by: DARPA and NAI Labs.
2002-08-30 08:53:03 +00:00
.Ar attrnamespace
.Ar attrname
.Ar attrvalue
.Ar filename ...
Allow setextattr(8) to take attribute values from stdin Add the -i option to setextattr. This option allow extended attribute data to be provided via stdin. Add a -qq option to getextattr, which omits the trailing newline. Together these options can be used to work with extended attributes whose values are large and/or binary. usr.sbin/extattr/Makefile: Link against libsbuf which is used for processing stdin data. usr.sbin/extattr/rmextattr.8: Document setextattr's -i option, getextattr's -qq option, and remove the BUG about setextattr only being useful for strings. usr.sbin/extattr/rmextattr.c: For setextattr operations, buffer attribute data in an sbuf. If -i is specified, pull the data from stdin, otherwise from the appropriate argurment. Update usage text and argument validation code for setextattr's -i option. usr.sbin/extattr/tests/extattr_test.sh Add tests for -q and -i. Reviewed by: wblock (manpage) MFC after: 4 weeks Sponsored by: Spectra Logic Corp Differential Revision: https://reviews.freebsd.org/D6090
2016-05-04 20:20:55 +00:00
.Nm setextattr
.Fl i
.Op Fl fhnq
.Ar attrnamespace
.Ar attrname
.Ar filename ...
Add the new userland tool for manipulating extended attributes. This will replace the existing getextattr(8) and setextattr(8) with a single binary responding to the names getextattr, setextattr, rmextattr and lsextattr. This program is not yet connected to the build. Sponsored by: DARPA and NAI Labs.
2002-08-30 08:53:03 +00:00
.Sh DESCRIPTION
These
utilities
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are user tools to manipulate the named extended attributes on files and
Add the new userland tool for manipulating extended attributes. This will replace the existing getextattr(8) and setextattr(8) with a single binary responding to the names getextattr, setextattr, rmextattr and lsextattr. This program is not yet connected to the build. Sponsored by: DARPA and NAI Labs.
2002-08-30 08:53:03 +00:00
directories.
The
.Ar attrnamespace
argument should be the namespace of the attribute to retrieve: legal
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values are
.Cm user
and
.Cm system .
Add the new userland tool for manipulating extended attributes. This will replace the existing getextattr(8) and setextattr(8) with a single binary responding to the names getextattr, setextattr, rmextattr and lsextattr. This program is not yet connected to the build. Sponsored by: DARPA and NAI Labs.
2002-08-30 08:53:03 +00:00
The
.Ar attrname
argument should be the name of the attribute,
.Ar filename
the name of the target file or directory,
.Ar attrvalue
a string to store in the attribute.
.Pp
The following options are available:
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.Bl -tag -width indent
Document the -n option and fix manpage Fl usage. Obtained from: TrustedBSD Project Sponsored by: DARPA, Network Associates Laboratories
2002-10-10 17:19:43 +00:00
.It Fl f
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(Force.)
Ignore errors on individual filenames and continue with
Add the new userland tool for manipulating extended attributes. This will replace the existing getextattr(8) and setextattr(8) with a single binary responding to the names getextattr, setextattr, rmextattr and lsextattr. This program is not yet connected to the build. Sponsored by: DARPA and NAI Labs.
2002-08-30 08:53:03 +00:00
the remaining arguments.
Document the -n option and fix manpage Fl usage. Obtained from: TrustedBSD Project Sponsored by: DARPA, Network Associates Laboratories
2002-10-10 17:19:43 +00:00
.It Fl h
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(No follow.)
If the file is a symbolic link, perform the operation on the
Add -h flags to each of the *extattr(8) commands, indicating that the command should not follow the symlink if the target file is a symlink. Invoke the extattr_*_link(2) version of the system call in that situation, instead of extattr_*_file(2). This is consistent with other attribute management tools in the system. Obtained from: TrustedBSD Project Sponsored by: DARPA, Network Associates Laboratories
2002-10-10 16:47:21 +00:00
link itself rather than the file that the link points to.
Allow setextattr(8) to take attribute values from stdin Add the -i option to setextattr. This option allow extended attribute data to be provided via stdin. Add a -qq option to getextattr, which omits the trailing newline. Together these options can be used to work with extended attributes whose values are large and/or binary. usr.sbin/extattr/Makefile: Link against libsbuf which is used for processing stdin data. usr.sbin/extattr/rmextattr.8: Document setextattr's -i option, getextattr's -qq option, and remove the BUG about setextattr only being useful for strings. usr.sbin/extattr/rmextattr.c: For setextattr operations, buffer attribute data in an sbuf. If -i is specified, pull the data from stdin, otherwise from the appropriate argurment. Update usage text and argument validation code for setextattr's -i option. usr.sbin/extattr/tests/extattr_test.sh Add tests for -q and -i. Reviewed by: wblock (manpage) MFC after: 4 weeks Sponsored by: Spectra Logic Corp Differential Revision: https://reviews.freebsd.org/D6090
2016-05-04 20:20:55 +00:00
.It Fl i
(From stdin.)
Read attribute data from stdin instead of as an argument.
Document the -n option and fix manpage Fl usage. Obtained from: TrustedBSD Project Sponsored by: DARPA, Network Associates Laboratories
2002-10-10 17:19:43 +00:00
.It Fl n
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.Dv ( NUL Ns
-terminate.)
.Dv NUL Ns
-terminate the extent content written out.
Document the -n option and fix manpage Fl usage. Obtained from: TrustedBSD Project Sponsored by: DARPA, Network Associates Laboratories
2002-10-10 17:19:43 +00:00
.It Fl q
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(Quiet.)
Do not print out the pathname and suppress error messages.
rmextattr(8) man page clarifications regarding -qq Reviewed by: ngie MFC after: 6 days X-MFC-With: 299085 Sponsored by: Spectra Logic Corp Differential Revision: https://reviews.freebsd.org/D6422
2016-05-26 14:26:49 +00:00
When given twice, print only the attribute value, with no trailing newline.
Document the -n option and fix manpage Fl usage. Obtained from: TrustedBSD Project Sponsored by: DARPA, Network Associates Laboratories
2002-10-10 17:19:43 +00:00
.It Fl s
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(Stringify.)
Escape nonprinting characters and put quotes around the output.
Document the -n option and fix manpage Fl usage. Obtained from: TrustedBSD Project Sponsored by: DARPA, Network Associates Laboratories
2002-10-10 17:19:43 +00:00
.It Fl x
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(Hex.)
Print the output in hexadecimal.
Add the new userland tool for manipulating extended attributes. This will replace the existing getextattr(8) and setextattr(8) with a single binary responding to the names getextattr, setextattr, rmextattr and lsextattr. This program is not yet connected to the build. Sponsored by: DARPA and NAI Labs.
2002-08-30 08:53:03 +00:00
.El
.Sh EXAMPLES
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.Bd -literal
setextattr system md5 `md5 -q /boot/kernel/kernel` /boot/kernel/kernel
Allow setextattr(8) to take attribute values from stdin Add the -i option to setextattr. This option allow extended attribute data to be provided via stdin. Add a -qq option to getextattr, which omits the trailing newline. Together these options can be used to work with extended attributes whose values are large and/or binary. usr.sbin/extattr/Makefile: Link against libsbuf which is used for processing stdin data. usr.sbin/extattr/rmextattr.8: Document setextattr's -i option, getextattr's -qq option, and remove the BUG about setextattr only being useful for strings. usr.sbin/extattr/rmextattr.c: For setextattr operations, buffer attribute data in an sbuf. If -i is specified, pull the data from stdin, otherwise from the appropriate argurment. Update usage text and argument validation code for setextattr's -i option. usr.sbin/extattr/tests/extattr_test.sh Add tests for -q and -i. Reviewed by: wblock (manpage) MFC after: 4 weeks Sponsored by: Spectra Logic Corp Differential Revision: https://reviews.freebsd.org/D6090
2016-05-04 20:20:55 +00:00
md5 -q /boot/kernel/kernel | setextattr -i system md5 /boot/kernel/kernel
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getextattr system md5 /boot/kernel/kernel
rmextattr(8) man page clarifications regarding -qq Reviewed by: ngie MFC after: 6 days X-MFC-With: 299085 Sponsored by: Spectra Logic Corp Differential Revision: https://reviews.freebsd.org/D6422
2016-05-26 14:26:49 +00:00
getextattr -qq system md5 /boot/kernel/kernel | od -x
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lsextattr system /boot/kernel/kernel
rmextattr system md5 /boot/kernel/kernel
.Ed
Add the new userland tool for manipulating extended attributes. This will replace the existing getextattr(8) and setextattr(8) with a single binary responding to the names getextattr, setextattr, rmextattr and lsextattr. This program is not yet connected to the build. Sponsored by: DARPA and NAI Labs.
2002-08-30 08:53:03 +00:00
.Sh SEE ALSO
.Xr extattr 2 ,
.Xr extattr 3 ,
.Xr extattrctl 8 ,
.Xr extattr 9
.Sh HISTORY
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Extended attribute support was developed as part of the
.Tn TrustedBSD
Project,
Add the new userland tool for manipulating extended attributes. This will replace the existing getextattr(8) and setextattr(8) with a single binary responding to the names getextattr, setextattr, rmextattr and lsextattr. This program is not yet connected to the build. Sponsored by: DARPA and NAI Labs.
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and introduced in
.Fx 5.0 .
It was developed to support security extensions requiring additional labels
to be associated with each file or directory.
.Sh AUTHORS
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.An Robert N M Watson
.An Poul-Henning Kamp
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