Initial import

1 files changed, 45 insertions, 0 deletions

diff --git a/ksh.install b/ksh.install
new file mode 100644
index 000000000000..8abd5acbcd79
--- /dev/null
+++ b/ksh.install
@@ -0,0 +1,45 @@
+pre_install() {
+  :
+}
+
+post_install() {
+  # I think we should use /usr/bin/ksh but the other except zsh shells show /bin
+  grep -qle '/bin/ksh$' '/etc/shells' || echo '/bin/ksh' >> '/etc/shells'
+  mandb -q
+}
+
+pre_upgrade() {
+  :
+}
+
+post_upgrade() {
+  post_install
+}
+
+pre_remove() {
+  # This is only necessary on alternate shells. sh and bash 
+  # are at the base of Arch and cannot be removed.
+  # To test this you should have a spare root shell already open.
+  # Otherwise, if this doesn't work, you will need to learn how to bypass
+  # the default shell on login.
+  # http://stackoverflow.com/questions/11059067/what-is-the-nix-command-to-view-a-users-default-login-shell
+  if getent passwd root | cut -d: -f7 | grep -qle '/bin/ksh'; then
+   echo '**********************************************'
+   echo '*** Warning: ROOT HAS ksh as the login shell.'
+   echo '*** Shell changed to sh to prevent loss of root access.'
+   echo '**********************************************'
+   # sh is more likely to guarantee a login than bash because sh is typically
+   # unmodified. Crappy, but guaranteed.
+   chsh -s '/bin/sh'
+  fi
+  sed -i -e '/^\/bin\/ksh$/d' '/etc/shells'
+}
+
+post_remove() {
+  mandb -q
+  # /usr/bin/ksh is also detected
+  if getent passwd | cut -d: -f7 | grep -qle '/bin/ksh'; then
+   echo '*** Warning: Some users have ksh as their login shell.'
+   echo '*** Fix promptly to restore access.'
+  fi
+}