Re: ssh-host-config change request

["CyberZombie" <CyberZombie at mediaone dot net>]

> Looks nice. Could you please send me a diff -up? It's way easier
> to read and apply.

I made one more update to also put the requested port into ssh_config.  One
thing -- should the generation of ssh_config be part of ssh-user-config
rather than ssh-host-config?

--- /bin/ssh-host-config Thu Mar  1 02:28:30 2001
+++ /home/root/ssh-newhost-config Sun Mar  4 22:53:30 2001
@@ -16,6 +16,7 @@ OLDSYSCONFDIR=${OLDPREFIX}/etc

 progname=$0
 auto_answer=""
+port_number=22

 request()
 {
@@ -67,6 +68,11 @@ do
     auto_answer=no
     ;;

+  -p | --port )
+    port_number=$1
+    shift
+    ;;
+
   *)
     echo "usage: ${progname} [OPTION]..."
     echo
@@ -76,6 +82,7 @@ do
     echo "    --debug  -d     Enable shell's debug output."
     echo "    --yes    -y     Answer all questions with \"yes\"
automatically."
     echo "    --no     -n     Answer all questions with \"no\"
automatically."
+    echo "    --port   -p <n> sshd listens on port n."
     echo
     exit 1
     ;;
@@ -247,6 +254,10 @@ then
     IdentityFile ~/.ssh/id_rsa
     IdentityFile ~/.ssh/id_dsa
 EOF
+  if [ "$port_number" != "22" ]
+  then
+    echo "    Port $port_number" >> ${SYSCONFDIR}/ssh_config
+  fi
 fi

 # Check if sshd_config exists. If yes, ask for overwriting
@@ -272,7 +283,7 @@ then
 # This is the sshd server system-wide configuration file.  See sshd(8)
 # for more information.

-Port 22
+Port $port_number
 #Protocol 2,1
 #ListenAddress 0.0.0.0
 #ListenAddress ::
@@ -325,7 +336,7 @@ Subsystem      sftp    /usr/sbin/sftp-se
 EOF
 fi

-# Add port 22/tcp to services
+# Add port $port_number/tcp to services
 _sys="`uname -a`"
 _nt=`expr "$_sys" : "CYGWIN_NT"`
 if [ $_nt -gt 0 ]
@@ -342,11 +353,28 @@ _serv_tmp=`cygpath -u "${_wserv_tmp}"`
 mount -b -f "${_wservices}" "${_services}"
 mount -b -f "${_wserv_tmp}" "${_serv_tmp}"

-if [ `grep -q 'sshd[ \t][ \t]*22' "${_services}"; echo $?` -ne 0 ]
+cat > /tmp/sshd_awk.$$ << EOF
+\$1 == "sshd" { next }
+! finished && \$2 + 0 >= $port_number {
+  finished = 1
+  if ( \$2 + 0 == $port_number ) {
+    # Problem -- non-sshd port assignment already exists.
+  } else {
+    print "sshd               $port_number/tcp
#SSH daemon\r"
+  }
+}
+{ print \$0 }
+EOF
+
+awk -f /tmp/sshd_awk.$$ < "${_services}" > "${_serv_tmp}"
+rm -f /tmp/sshd_awk.$$
+
+if [ -f "${_serv_tmp}" ]
 then
-  awk '{ if ( $2 ~ /^23\/tcp/ ) print "sshd               22/tcp
#SSH daemon\r"; print $0; }' < "${_services}" > "${_serv_tmp}"
-  if [ -f "${_serv_tmp}" ]
+  if [ `egrep -q '^sshd[ \t]' "${_serv_tmp}"; echo $?` -ne 0 ]
   then
+    echo "Unable to add sshd to ${_services} as port $port_number already
in use"
+  else
     if mv "${_serv_tmp}" "${_services}"
     then
       echo "Added sshd to ${_services}"
@@ -354,9 +382,9 @@ then
       echo "Adding sshd to ${_services} failed\!"
     fi
     rm -f "${_serv_tmp}"
-  else
-    echo "Adding sshd to ${_services} failed\!"
   fi
+else
+  echo "Adding sshd to ${_services} failed\!"
 fi

 umount "${_services}"



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