initd-status.patch

Add support for service quagga status.

As per LSB initscript status code definitions, support is added for
querying status of quagga. All daemons supposed to have been enabled, will
be checked as running and if any one of them is found to be not running, the
appropriate status code is returned.

Note that if watchquagga is running, a status indicating a problem maybe a
trasient problem because watchquagga will start back an unresponsive or dead
process.
http://refspecs.linuxbase.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/iniscrptact.html

diff --git a/debian/quagga.init.d b/debian/quagga.init.d
index 1957461a7677abaae069a027424607889223e029..093c5734122139c8911c1cc25ebd7f6951bf9a33 100755 (executable)
--- a/debian/quagga.init.d
+++ b/debian/quagga.init.d
@@ -40,8 +40,9 @@ vtyfile()
 # Check if daemon is started by using the pidfile.
 started()
 {
-        [ -e `pidfile $1` ] && kill -0 `cat \`pidfile $1\`` 2> /dev/null && return 0
-        return 1
+        [ ! -e `pidfile $1` ] && return 3
+       kill -0 `cat \`pidfile $1\`` 2> /dev/null || return 1
+       return 0
 }
 
 # Loads the config via vtysh -b if configured to do so.
@@ -403,6 +404,43 @@ start_prio()
         echo "."
 }
 
+check_status()
+{
+    local daemon_name
+    local daemon_prio
+    local daemon_inst
+
+    if [ -n "$1" ] && [[ "$1" =~ (.*)-(.*) ]]; then
+       daemon=${BASH_REMATCH[1]}
+       inst=${BASH_REMATCH[2]}
+    else
+       daemon="$1"
+    fi
+
+    daemon_list=${daemon:-$DAEMONS}
+
+    # Which daemons have been started?
+    for daemon_name in $daemon_list; do
+        eval daemon_prio=\$$daemon_name
+        if [ "$daemon_prio" -gt 0 ]; then
+           eval "daemon_inst=\${${daemon_name}_instances//,/ }"
+           if [ -n "$daemon_inst" ]; then
+              for i in ${daemon_inst}; do
+                 if [ -n "$inst" -a "$inst" = "$i" ]; then
+                      started "$1" || return $?
+                 elif [ -z "$inst" ]; then
+                      started "$daemon_name-$i" || return $?
+                 fi
+              done
+           else
+               started "$daemon_name" || return $?
+           fi
+        fi
+    done
+
+    # All daemons that need to have been started are up and running
+    return 0
+}
 
 #########################################################
 #               Main program                            #
@@ -432,7 +470,7 @@ fi
 
 if [ -n "$3" ]; then
    dmn="$2"-"$3"
-else
+elif [ -n "$2" ]; then
    dmn="$2"
 fi
 
@@ -490,6 +528,11 @@ case "$1" in
        "$RELOAD_SCRIPT" --reload /etc/quagga/Quagga.conf
        ;;
 
+    status)
+        check_status $dmn
+        exit $?
+        ;;
+
     restart|force-reload)
         $0 stop $dmn
         sleep 1
@@ -497,10 +540,10 @@ case "$1" in
         ;;
 
     *)
-        echo "Usage: /etc/init.d/quagga {start|stop|restart|force-reload|<priority>} [daemon]"
-       echo "Usage: /etc/init.d/quagga reload"
+        echo "Usage: /etc/init.d/quagga {start|stop|status|reload|restart|force-reload|<priority>} [daemon]"
         echo "       E.g. '/etc/init.d/quagga 5' would start all daemons with a prio 1-5."
-       echo "       reload applies only modifications to the running config."
+       echo "       reload applies only modifications from the running config to all daemons."
+       echo "       reload neither restarts starts any daemon nor starts any new ones."
         echo "       Read /usr/share/doc/quagga/README.Debian for details."
         exit 1
         ;;