Tagging module pl_sshd - pl_sshd-1.0-11

[pl_sshd.git] / pl_sshd.sh

diff --git a/pl_sshd.sh b/pl_sshd.sh
index 4fa07c4..0758033 100755 (executable)
--- a/pl_sshd.sh
+++ b/pl_sshd.sh
@@ -1,3 +1,24 @@
 #!/bin/sh
+#
+# this wrapper runs sshd on an alternate port with a different argv[0]
+# and PID file (rather annoyingly, the latter has to be specified
+# explicitly even if argv[0] is changed).
+#
+# the alternate port is necessary so we can have two instances of sshd
+# running, the different name and PID file are required so that stopping
+# the standard sshd won't affect this one.
+#
+# we use port 806 unless there is a '-p' argument specifying a different
+# port.  we also have to specify a different PID file so that one sshd
+# doesn't clobber the other's PID file.
+#
+# XXX - unfortunately the standard init.d/sshd script is fairly brutal
+# when stopping sshd processes - it will stop anything that looks
+# remotely like sshd.  the measures taken here still don't prevent that
+# but i have decided that restarting/stopping sshd should be sufficiently
+# rare that it's not worth worrying about to any greater extent.
+#
+name=pl_sshd
+echo "$@" | grep -q -- '-p[ 0-9]' || port='-p 806'
 
-exec -a pl_sshd /usr/sbin/sshd "$@"
+exec -a /usr/local/sbin/pl_sshd /usr/sbin/sshd -o "PidFile /var/run/$name.pid" $port "$@"