From 79dc87c707bc9b9bb253901ac8c8915dc638d36c Mon Sep 17 00:00:00 2001
From: Dirk Alders <dirk@mount-mockery.de>
Date: Tue, 12 Sep 2023 08:11:36 +0200
Subject: [PATCH] dnsleases pimped - output sorted by hostname + ipx

---
 dnsleases | 24 ++++++++++++++++++------
 1 file changed, 18 insertions(+), 6 deletions(-)

diff --git a/dnsleases b/dnsleases
index 41273e9..f4301a8 100755
--- a/dnsleases
+++ b/dnsleases
@@ -12,8 +12,13 @@ class host(object):
         self.hostname = ''
         self.lease_tm = 0
 
+    def sortcriteria(h):
+        rv = h.hostname if h.hostname != '*' else '~'
+        rv += ".".join(["%03d" % int(v) for v in h.ip.split('.')])
+        return rv.lower()
+
     def __str__(self):
-        return "%-16s - %17s - %-10s - %15s - %s" % (self.ip, self.mac, self.state, time.asctime(time.localtime(self.lease_tm)), self.hostname)
+        return "  * %-16s - %17s - %-10s - %15s - %s" % (self.ip, self.mac, self.state, time.asctime(time.localtime(self.lease_tm)), self.hostname)
 
 
 class hostlist(dict):
@@ -27,10 +32,19 @@ class hostlist(dict):
         else:
             self[host.mac] = host
 
+    def vlan_list(self, vlan):
+        rv = hostlist()
+        for h in self.values():
+            if h.vlan == vlan:
+                rv.append(h)
+        return rv
+
     def __str__(self):
+        entries = list(self.values())
+        entries.sort(key=host.sortcriteria)
         rv = ""
-        for key in self:
-            rv += str(self[key]) + '\n'
+        for h in entries:
+            rv += str(h) + '\n'
         return rv
 
 
@@ -75,7 +89,5 @@ with open('/var/lib/misc/dnsmasq.leases', 'r') as fh:
 
 for vlan in [20, 30, 40, 50, 60, 90]:
     print("Hosts in VLAN %d" % vlan)
-    for host in hl.values():
-        if host.vlan == vlan:
-            print("  *", host)
+    print(hl.vlan_list(vlan))
     print()