* Split the ssh binary package into openssh-client and openssh-server

  (closes: #39741). openssh-server depends on openssh-client for some
  common functionality; it didn't seem worth creating yet another package
  for this.
* New transitional ssh package, depending on openssh-client and
  openssh-server. May be removed once nothing depends on it.
* When upgrading from ssh to openssh-{client,server}, it's very difficult
  for the maintainer scripts to find out what version we're upgrading from
  without dodgy dpkg hackery. I've therefore taken the opportunity to move
  a couple of debconf notes into NEWS files, namely ssh/ssh2_keys_merged
  and ssh/user_environment_tell.
* In general, upgrading to this version directly from woody without first
  upgrading to the version in sarge is not currently guaranteed to work
  very smoothly due to the aforementioned version discovery problems.

1 files changed, 104 insertions, 0 deletions

diff --git a/debian/openssh-client.postinst b/debian/openssh-client.postinst
new file mode 100644
index 000000000..2168dc1f1
--- /dev/null
+++ b/debian/openssh-client.postinst
@@ -0,0 +1,104 @@
+#!/bin/sh -e
+
+action="$1"
+oldversion="$2"
+
+. /usr/share/debconf/confmodule
+db_version 2.0
+
+umask 022
+
+if [ "$action" != configure ]
+  then
+  exit 0
+fi
+
+
+fix_rsh_diversion() {
+# get rid of mistaken rsh diversion (circa 1.2.27-1)
+
+        if [ -L /usr/bin/rsh ] &&
+                dpkg-divert --list '/usr/bin/rsh.real/rsh' | grep -q ' ssh$' ; then
+                for cmd in rlogin  rsh rcp ; do
+                        [ -L /usr/bin/$cmd ] && rm /usr/bin/$cmd
+                        dpkg-divert --package ssh --remove --rename \
+                                --divert /usr/bin/rsh.real/$cmd /usr/bin/$cmd
+
+                        [ -L /usr/man/man1/$cmd.1.gz ] && rm /usr/man/man1/$$cmd.1.gz
+                        dpkg-divert --package ssh --remove --rename \
+                                --divert /usr/man/man1/$cmd.real.1.gz /usr/man/man1/$cmd.1.gz
+                done
+
+                rmdir /usr/bin/rsh.real
+        fi
+}
+
+create_alternatives() {
+# Create alternatives for the various r* tools.
+# Make sure we don't change existing alternatives that a user might have
+# changed, but clean up after some old alternatives that mistakenly pointed
+# rlogin and rcp to ssh.
+        update-alternatives --quiet --remove rlogin /usr/bin/ssh
+        update-alternatives --quiet --remove rcp /usr/bin/ssh
+        for cmd in rsh rlogin rcp; do
+                scmd="s${cmd#r}"
+                if ! update-alternatives --display "$cmd" | \
+                                grep -q "$scmd"; then
+                        update-alternatives --quiet --install "/usr/bin/$cmd" "$cmd" "/usr/bin/$scmd" 20 \
+                                --slave "/usr/share/man/man1/$cmd.1.gz" "$cmd.1.gz" "/usr/share/man/man1/$scmd.1.gz"
+                fi
+        done
+}
+
+set_ssh_permissions() {
+        if dpkg --compare-versions "$oldversion" lt-nl 1:3.4p1-1 ; then
+            if [ -x /usr/sbin/dpkg-statoverride ] ; then
+                if dpkg-statoverride --list /usr/bin/ssh >/dev/null; then
+                    dpkg-statoverride --remove /usr/bin/ssh >/dev/null
+                fi 
+            fi
+        fi
+
+        if [ ! -x /usr/sbin/dpkg-statoverride ] || \
+             ! dpkg-statoverride --list /usr/lib/ssh-keysign >/dev/null ; then
+                db_get ssh/SUID_client
+                if [ "$RET" = "false" ] ; then
+                        chmod 0755 /usr/lib/ssh-keysign
+                elif [ "$RET" = "true" ] ; then
+                        chmod 4755 /usr/lib/ssh-keysign
+                fi
+        fi
+}
+
+fix_ssh_group() {
+        # Try to remove non-system group mistakenly created by 1:3.5p1-1.
+        # set_ssh_agent_permissions() below will re-create it properly.
+        if getent group ssh >/dev/null; then
+                delgroup --quiet ssh || true
+        fi
+}
+
+set_ssh_agent_permissions() {
+        if ! getent group ssh >/dev/null; then
+                addgroup --system --quiet ssh
+        fi
+        if ! [ -x /usr/sbin/dpkg-statoverride ] || \
+            ! dpkg-statoverride --list /usr/bin/ssh-agent >/dev/null ; then
+                chgrp ssh /usr/bin/ssh-agent
+                chmod 2755 /usr/bin/ssh-agent
+        fi
+}
+
+
+fix_rsh_diversion
+create_alternatives
+set_ssh_permissions
+if [ "$2" = "1:3.5p1-1" ]; then
+    fix_ssh_group
+fi
+set_ssh_agent_permissions
+
+
+db_stop
+
+exit 0