automating openssh/openssl installation

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Warning: technical content ahoy!

Here’s a handy shell hack I use to update openssh/openssl on various machine under my care. Further hacks could be made to determine the latest version numbers of the ssl/ssh to fetch. Become one with the primative shell hacking vestiges in your modern Perl brain, oh Perlescent Brethren!

#!/bin/sh

build=/tmp dest=/opt lynx=/usr/bin/lynx wget=/usr/bin/wget

ssl_url=”http://www.openssl.org/source/openssl-0.9.7g.tar.gz” ssh_url=”ftp://ftp.tux.org/bsd/openbsd/OpenSSH/portable/openssh-4.0p1.tar.gz” ssl_version=basename $ssl_url ".tar.gz" ssh_version=basename $ssh_url ".tar.gz" ssl_dir=”$build/$ssl_version” ssh_dir=”$build/$ssh_version”

cd $build;

echo “Finding $ssl_version and $ssh_version…”; if [ -e $wget ]; then for url in $ssl_url $ssh_url; do file=basename $url if [ -e $file ] ; then echo “Using existing $file”; else echo $wget $url fi done;

else if [ -e $lynx ]; then

  for url in $ssl_url $ssh_url;
  do
    file=`basename $url`
    if [ -e $file ] ;
    then
      echo "Using existing $file";
    else
      echo `$lynx -source $url > $file`
    fi
  done;

else
  echo "Oops.  No URL fetchers!";
exit 1;
fi

fi

# unpacking echo “Unpacking archives”; tar xzvf basename $ssl_url; tar xzvf basename $ssh_url;

echo “Cleaning”; cd $ssl_dir && make clean; cd $ssh_dir && make clean;

echo “Building SSL”; # build ssl first; sshd depends on it cd $ssl_dir && ./config —prefix=$dest && make install

echo “Building SSH”; cd $ssh_dir && ./configure —prefix=$dest —with-ssl=$dest \ —with-sysconfig=/usr/local/etc && make install

# adjust ? if [ -e “/etc/rc.d/init.d/sshd” ]; then echo “You may need to adjust your sshd” fi

[Original use.perl.org post and comments.]