Command line printer manipulation client, and build goo.

[moira.git] / gen / mailhub.sh

diff --git a/gen/mailhub.sh b/gen/mailhub.sh
index cdee1bd99268ea64d3403fa35ffe75d50012395b..db980351419fdf1e4041b4439dd59b339a989b1e 100644 (file)
--- a/gen/mailhub.sh
+++ b/gen/mailhub.sh
@@ -1,5 +1,9 @@
 #!/bin/sh
-PATH=/bin:/usr/ucb:/usr/bin
+#
+# $Header$
+
+PATH=/sbin:/bin:/usr/sbin:/usr/bin:/etc:/usr/etc:/usr/athena/bin:/usr/local/bin
+export PATH
 
 if [ -d /var/athena ] && [ -w /var/athena ]; then
     exec >/var/athena/moira_update.log 2>&1
@@ -7,38 +11,65 @@ else
     exec >/tmp/moira_update.log 2>&1
 fi
 
+# The following exit codes are defined and MUST BE CONSISTENT with
+# error codes the library uses:
 MR_MKCRED=47836474
+MR_MISSINGFILE=47836473
+MR_NOCRED=47836470
+
+root=/usr/local/sendmail
+
+if [ -r $root/etc/aliases.new ]; then
+    chmod 644 $root/etc/aliases.new
+else
+    exit $MR_MISSINGFILE
+fi
+
+if [ ! -r $root/etc/aliases ]; then
+    logger -p mail.error -t mailhub.sh "No current aliases file, aborting."
+    exit $MR_NOCRED
+fi
 
-cat /usr/lib/aliases.legacy > /usr/lib/aliases.tmp
-cat /usr/lib/aliases.new >> /usr/lib/aliases.tmp
-cat /usr/lib/aliases.local >> /usr/lib/aliases.tmp
-mv aliases.tmp aliases.new
+# Play it safe and be sure we have reasonable data
+olines=`wc -l $root/etc/aliases |  awk '{print $1}'`
+nlines=`wc -l $root/etc/aliases.new | awk '{print $1}'`
+diff=`expr $nlines - $olines`
+thresh=`expr $olines / 10`
 
-cp /dev/null /usr/lib/aliases.new.dir
-cp /dev/null /usr/lib/aliases.new.pag
+# Catch the zero case
+if [ $nlines -eq 0 ]; then
+    logger -p mail.error -t mailhub.sh "Recieved empty aliases file, aborting."
+    exit $MR_MISSINGFILE
+fi
+
+# If its a greater than 10% shift bomb out to be safe
+if [ $diff -gt $thresh ]; then
+    logger -p mail.error -t mailhub.sh "Alias changes threshold exceeded, aborting."
+    exit $MR_NOCRED
+fi
+
+cp /dev/null $root/etc/aliases.new.db
 
-/usr/lib/sendmail -bi -oA/usr/lib/aliases.new
+$root/sbin/sendmail -bi -oA$root/etc/aliases.new
 if [ $? != 0 ]; then
-       exit $MR_MKCRED
-       fi
+    exit $MR_MKCRED
+fi
 
-kill `ps ax | grep "sendmail" | egrep -v "grep|mqueue.stall" | awk '{print $1}'`
-sleep 60
+sh /etc/init.d/sendmail stop
 
-mv /usr/lib/aliases /usr/lib/aliases.old
-mv /usr/lib/aliases.dir /usr/lib/aliases.old.dir
-mv /usr/lib/aliases.pag /usr/lib/aliases.old.pag
-mv /usr/lib/aliases.new /usr/lib/aliases
-mv /usr/lib/aliases.new.dir /usr/lib/aliases.dir
-mv /usr/lib/aliases.new.pag /usr/lib/aliases.pag
+mv $root/etc/aliases $root/etc/aliases.old
+mv $root/etc/aliases.db $root/etc/aliases.old.db
+mv $root/etc/aliases.new $root/etc/aliases
+mv $root/etc/aliases.new.db $root/etc/aliases.db
 
-cd /usr/spool/mqueue
-rm -f xf* tf* lf* nf*
+sh /etc/init.d/sendmail start
 
-/usr/lib/sendmail -bd
-/usr/lib/sendmail -q20m
+# Make sure the sendmail daemons are indeed running
+ps -ef | grep sendmail | grep -v grep > /dev/null 2>&1
+if [ $? -ne 0 ]; then
+    logger -p mail.error -t mailhub.sh "Sendmail failed to restart."
+    exit $MR_MKCRED
+fi
 
 rm -f $0
 exit 0
-
-# $Header$