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https://github.com/Ponce/slackbuilds
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development/cvsd: Added (wrapper for cvs in pserver mode).
This commit is contained in:
Zordrak
Robby Workman
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6 changed files with 351 additions and 0 deletions
27
development/cvsd/README
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27
development/cvsd/README
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cvsd is a wrapper program for cvs in pserver mode. it will run 'cvs pserver'
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under a special uid/gid in a chroot jail.
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cvsd is run as a daemon and is controlled through a configuration file. It is
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relatively easy to configure and provides tools for easy setting up a chroot
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jail.
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This server can be useful if you want to run a public cvs pserver. You should
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however be aware of the security limitations of running a cvs pserver. If you
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want any kind of authentication you should really consider using secure shell
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as a secure authentication mechanism and transport. Passwords used in cvs
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pserver are transmitted in plain text.
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This wrapper adds a layer of security to the cvs server. cvs is a very
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powerful tool and is capable of running scripts and other things. Running cvs
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in a chroot jail it is possible to limit the amount of "damage" cvs can do if
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it is exploited. It is generally a good idea to run cvsd without any write
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permissions to any directory on the system.
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Features of cvsd include:
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* running in chroot jail
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* configuring chroot jail
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* running under a non-root uid
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* set a nice value
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* limit resource usage
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* limit number of connections
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* relatively easy to set up
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169
development/cvsd/README.SLACKWARE
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169
development/cvsd/README.SLACKWARE
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To have cvsd start at boot-time, you'll need to add the following lines
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to /etc/rc.d/rc.local:
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# Start cvsd
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if [ -x /etc/rc.d/rc.cvsd ]; then
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/etc/rc.d/rc.cvsd start
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fi
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You'll then need to add the following lines to /etc/rc.d/rc.local_shutdown:
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# Stop cvsd
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if [ -x /etc/rc.d/rc.cvsd ]; then
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/etc/rc.d/rc.cvsd stop
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fi
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The following is the configuration section from cvsd's own README
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(located in /usr/doc/cvsd-<version>), just modified a little for Slackware.
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You will need this for actually setting up a jail and repositories etc.
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CONFIGURING CVSD
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================
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cvsd is controlled through a configuration file in /etc/cvsd/cvsd.confi
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The default configuration file is fully commented and has a manual page
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(cvsd.conf(5)) which documents use of the configuration file.
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very quick setup guide
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----------------------
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The is just a series of commands to set up cvsd in a typical read-only setup.
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If you don't understand these steps or are looking for commands that work on
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your system you should look below for further details.
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# cvsd-buildroot /srv/cvsd
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# cvs -d /srv/cvsd/myrepos init
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# cvsd-passwd /srv/cvsd/myrepos +anonymous
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# touch /srv/cvsd/myrepos/CVSROOT/writers
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edit /srv/cvsd/myrepos/CVSROOT/config
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add "SystemAuth=no"
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add "PamAuth=no"
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add "LockDir=/tmp/myrepos"
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# mkdir /srv/cvsd/tmp/myrepos
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# chown cvsd:cvsd /srv/cvsd/tmp/myrepos
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edit /etc/cvsd/cvsd.conf
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set "Repos /myrepos"
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You should now be able to continue with the section "checking the
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configuration" below.
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setting up a chroot jail
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------------------------
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You can populate a chrooted file system with cvsd-buildroot. You should rerun
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this script if your cvs binary changes or the libraries that it depends upon.
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The place where you create the chroot file system should be specified in the
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configuration file as the 'RootJail'. It is possible (but not advisable) to
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run cvsd without a chrooted file system.
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If you plan to run stuff like the scripts from the contrib/ subdirectory in
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cvs, then you have to have all necessary binaries, libraries etc. etc. in the
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chrooted file system. You can just put the needed binaries in the 'bin'
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directory of the chroot jail and 'cvsd-buildroot' will install the needed
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libraries. Please note that this may require manual reconfiguring.
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Some systems may require extra libraries to be present in the chrooted file
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system than can not be automatically detected (using ldd). See the FAQ for
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details.
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disabling inetd pserver
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-----------------------
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If inetd is configured to start cvs /etc/inetd.conf should contain a line
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like this:
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cvspserver stream tcp nowait root /usr/bin/cvs --allow-root /home/cvs
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You should remove or comment out this line or tell cvsd to listen on a
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different port (use Listen option in cvsd.conf). If you change inetd.conf you
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should tell inetd to reload it's configuration by:
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# kill -s HUP <pidofinetd>
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setting up a repository
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-----------------------
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If you have configured the chroot jail and the user and group id bits you can
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start adding repositories to the chroot jail. There are a couple of ways you
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could do that.
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The first is creating an empty repository with something like:
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# cvs -d /srv/cvsd/myrepos init
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(where /srv/cvsd is the location of the chroot jail and myrepos is the
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name of the new repository)
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Another way is copying an already existing repository to the chroot jail. It
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is also possible to do something smart with a tool like 'rsync'. Put this in
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a cronjob for extra effect.
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Symbolic linking a repository to the chroot jail is not possible since
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symbolic links will be evaluated within the chroot jail. Hard linking directories
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should be avoided (hard linking in general in my opinion). With Linux 2.4 (and
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probably other systems) it is possible to remount an existing directory
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within another directory. You can use mount:
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# mount --bind /home/user/develrepos /srv/cvsd/userrepos
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or add something like this to /etc/fstab:
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/home/user/develrepos /srv/cvsd/userrepos none bind 0 0
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(don't forget to create the /srv/cvsd/userrepos directory)
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After you have created or copied a repository into the chroot jail you should
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add it to the cvsd.conf configuration file so cvs can access it. Use the
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'Repos' option for this and remember to specify it relative to the chroot
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jail. So if your repository is /srv/cvsd/myrepos you should add 'Repos
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/myrepos' to the configuration file.
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The last step for making your repository accessible is to add a passwd file
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to the 'CVSROOT' directory of the repository. The cvsd-passwd tool will do
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this for you.
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cvsd-passwd /srv/cvsd/myrepos anonymous
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This will add user 'anonymous' to the list of users that can access the
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repository. You will be prompted for a password which can optionally be
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blank.
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Note that the cvsd user needs to have the correct permissions to the
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repository. The cvsd user probably should have read access to the repository
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but probably no write permission. You can add all users in the repository
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passwd file to a file named 'readers' in the 'CVSROOT' directory or create an
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empty 'writers' file. Without any of these files all users have write access!
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If you set up your repository so that the cvsd user only has read access to
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the files and directories in the repository (through unix file permissions)
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you need to take some extra provisions since cvs creates lockfiles when
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checking out files from the repository. The best way to do this is to create
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a directory for the cvsd user to write the lockfiles to (e.g.
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/srv/cvsd/tmp/myrepos) and add "LockDir=/tmp/myrepos" to the
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/srv/cvsd/myrepos/CVSROOT/config file. Be sure to create the directory
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and make it writable for the cvsd user. If your cvsd user has write access to
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the repository this should be no problem.
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It is also a good idea to put "SystemAuth=no" and maybe "PamAuth=no" in your
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CVSROOT/config file. This way password lookups will only be done to
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CVSROOT/config and not to /etc/passwd inside the chroot jail (that passwd
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file shouldn't contain any passwords) or PAM.
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See the "Password authentication server" section in the cvs texinfo document
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for more information about running a pserver and setting up repositories.
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CHECKING THE CONFIGURATION
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==========================
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If you have started cvsd with the provided init script:
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# /etc/rc.d/rc.cvsd start
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and configured a repository (say myrepos) you should be able to access the
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server with something like:
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% cvs -d :pserver:anonymous@localhost:/myrepos login
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% cvs -d :pserver:anonymous@localhost:/myrepos checkout .
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For troubleshooting information see the FAQ on debugging.
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REPORTING BUGS
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==============
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If you find any bugs or missing features please send email to
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arthur@arthurdejong.org
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Please include as much information as needed (platform, output of configure
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if compilation fails, output of the failure, etc). Most of the configuration
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information can be provided by running cvsd-buginfo. Patches are more than
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welcome.
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103
development/cvsd/cvsd.SlackBuild
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103
development/cvsd/cvsd.SlackBuild
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#!/bin/sh
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# Generated by Alien's SlackBuild Toolkit: http://slackware.com/~alien/AST
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# Copyright 2009 Eric Hameleers <alien@slackware.com>, Eindhoven, Netherlands
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# Slackware build script for drbd
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# Written by Zordrak <sbo@tpa.me.uk>
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# Based on http://slackbuilds.org/template.SlackBuild
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PRGNAM=cvsd
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VERSION=${VERSION:-1.0.18}
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ARCH=${ARCH:-x86}
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BUILD=${BUILD:-1}
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TAG=${TAG:-_SBo}
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CWD=$(pwd)
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TMP=${TMP:-/tmp/SBo}
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PKG=$TMP/package-$PRGNAM
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OUTPUT=${OUTPUT:-/tmp}
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if [ "$ARCH" = "i486" ]; then
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SLKCFLAGS="-O2 -march=i486 -mtune=i686"
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LIBDIRSUFFIX=""
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elif [ "$ARCH" = "i686" ]; then
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SLKCFLAGS="-O2 -march=i686 -mtune=i686"
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LIBDIRSUFFIX=""
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elif [ "$ARCH" = "x86_64" ]; then
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SLKCFLAGS="-O2 -fPIC"
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LIBDIRSUFFIX="64"
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fi
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set -e # Exit on most errors
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# Bail out if user or group isn't valid on your system
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# For slackbuilds.org, assigned cvsd uid/gid are 233/233
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# See http://slackbuilds.org/uid_gid.txt
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if ! grep ^cvsd: /etc/group 2>&1 > /dev/null; then
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echo " You must have a \"cvsd\" group to run this script."
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echo " # groupadd -g 233 cvsd"
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exit 1
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elif ! grep ^cvsd: /etc/passwd 2>&1 > /dev/null; then
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echo " You must have a \"cvsd\" user to run this script."
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echo " # useradd -u 233 -g cvsd -d /srv/cvsd -s /bin/false cvsd"
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exit 1
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fi
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rm -rf $PKG
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mkdir -p $TMP $PKG $OUTPUT
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cd $TMP
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rm -rf $PRGNAM-$VERSION
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tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
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cd $PRGNAM-$VERSION
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chown -R root:root .
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find . \
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\( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
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-exec chmod 755 {} \; -o \
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\( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
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-exec chmod 644 {} \;
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CFLAGS="$SLKCFLAGS" \
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CXXFLAGS="$SLKCFLAGS" \
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./configure \
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--prefix=/usr \
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--libdir=/usr/lib${LIBDIRSUFFIX} \
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--sysconfdir=/etc \
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--localstatedir=/var \
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--mandir=/usr/man \
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--docdir=/usr/doc/$PRGNAM-$VERSION \
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--build=$ARCH-slackware-linux
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make
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make install DESTDIR=$PKG
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find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF \
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| cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
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( cd $PKG/usr/man
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find . -type f -exec gzip -9 {} \;
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for i in $( find . -type l ) ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done
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)
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mkdir -p $PKG/etc/rc.d
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mv $PKG/etc/init.d/cvsd $PKG/etc/rc.d/rc.cvsd.new
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rmdir $PKG/etc/init.d
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mv $PKG/etc/cvsd/cvsd.conf $PKG/etc/cvsd/cvsd.conf.new
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sed -i 's/\/var\/lib\/cvsd/\/srv\/cvsd/g' $PKG/etc/cvsd/cvsd.conf.new
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sed -i 's/^Repos/# Repos/g' $PKG/etc/cvsd/cvsd.conf.new
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sed -i 's/^#Listen \* 2401/Listen 0.0.0.0 2401/g' $PKG/etc/cvsd/cvsd.conf.new
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mkdir -p $PKG/srv/cvsd
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mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
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cp -a \
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AUTHORS COPYING ChangeLog* FAQ INSTALL NEWS README TODO \
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$PKG/usr/doc/$PRGNAM-$VERSION
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cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
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mkdir -p $PKG/install
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cat $CWD/slack-desc > $PKG/install/slack-desc
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cat $CWD/doinst.sh > $PKG/install/doinst.sh
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cd $PKG
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/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}
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10
development/cvsd/cvsd.info
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10
development/cvsd/cvsd.info
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PRGNAM="cvsd"
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VERSION="1.0.18"
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HOMEPAGE="http://arthurdejong.org/cvsd/"
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DOWNLOAD="http://arthurdejong.org/cvsd/cvsd-1.0.18.tar.gz"
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MD5SUM="1117d78572619597ece45c04aab75e2d"
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DOWNLOAD_x86_64=""
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MD5SUM_x86_64=""
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MAINTAINER="Zordrak"
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EMAIL="slackbuilds@tpa.me.uk"
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APPROVED="rworkman"
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23
development/cvsd/doinst.sh
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23
development/cvsd/doinst.sh
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config() {
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NEW="$1"
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OLD="$(dirname $NEW)/$(basename $NEW .new)"
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# If there's no config file by that name, mv it over:
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if [ ! -r $OLD ]; then
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mv $NEW $OLD
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elif [ "$(cat $OLD | md5sum)" = "$(cat $NEW | md5sum)" ]; then
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# toss the redundant copy
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rm $NEW
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fi
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# Otherwise, we leave the .new copy for the admin to consider...
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}
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# Keep same perms on rc.cvsd.new:
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if [ -e etc/rc.d/rc.cvsd ]; then
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cp -a etc/rc.d/rc.cvsd etc/rc.d/rc.cvsd.new.incoming
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cat etc/rc.d/rc.cvsd.new > etc/rc.d/rc.cvsd.new.incoming
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mv etc/rc.d/rc.cvsd.new.incoming etc/rc.d/rc.cvsd.new
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fi
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config etc/rc.d/rc.cvsd.new
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config etc/cvsd/cvsd.conf.new
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19
development/cvsd/slack-desc
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19
development/cvsd/slack-desc
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# HOW TO EDIT THIS FILE:
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# The "handy ruler" below makes it easier to edit a package description. Line
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# up the first '|' above the ':' following the base package name, and the '|'
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# on the right side marks the last column you can put a character in. You must
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# make exactly 11 lines for the formatting to be correct. It's also
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# customary to leave one space after the ':'.
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|-----handy-ruler------------------------------------------------------|
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cvsd: cvsd (a cvs pserver daemon)
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cvsd:
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cvsd: cvsd is a wrapper program for cvs in pserver mode. It will run
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cvsd: 'cvs pserver' under a special uid/gid in a chroot jail.
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cvsd:
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cvsd: cvsd is run as a daemon and is controlled through a configuration
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cvsd: file. It is relatively easy to configure and tools are provided for
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cvsd: setting up a rootjail.
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cvsd:
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cvsd: Home: http://arthurdejong.org/cvsd/
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cvsd:
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