support for ping -c

cowrie/commands/ping.py

@@ -5,6 +5,7 @@ import re
 import random
 import hashlib
 import socket
+import getopt
 
 from twisted.internet import reactor
 
@@ -23,10 +24,28 @@ class command_ping(HoneyPotCommand):
 
     def start(self):
         self.host = None
-        for arg in self.args:
-            if not arg.startswith('-'):
-                self.host = arg.strip()
-                break
+        self.max = 0
+        self.running = False
+
+        try:
+            optlist, args = getopt.getopt(self.args, "c:")
+        except getopt.GetoptError as err:
+            self.writeln('ping: %s' % err )
+            self.exit()
+            return
+
+        for opt in optlist:
+            if opt[0] == '-c':
+                try:
+                    self.max = int(opt[1])
+                except:
+                    self.max = 0
+                if self.max == 0:
+                    self.writeln('ping: bad number of packets to transmit.')
+                    self.exit()
+                    return
+
+        self.host = args[0].strip()
 
         if not self.host:
             for l in (
@@ -50,6 +69,7 @@ class command_ping(HoneyPotCommand):
             self.ip = '.'.join([str(int(x, 16)) for x in
                 (s[0:2], s[2:4], s[4:6], s[6:8])])
 
+        self.running = True
         self.writeln('PING %s (%s) 56(84) bytes of data.' % \
             (self.host, self.ip))
         self.scheduled = reactor.callLater(0.2, self.showreply)
@@ -60,14 +80,29 @@ class command_ping(HoneyPotCommand):
         self.writeln(
             '64 bytes from %s (%s): icmp_seq=%d ttl=50 time=%.1f ms' % \
             (self.host, self.ip, self.count + 1, ms))
+        self.writeln( "self.max: %d, self.count: %d" % (self.max,self.count))
         self.count += 1
-        self.scheduled = reactor.callLater(1, self.showreply)
+        if self.count == self.max:
+            self.running = False
+            self.writeln('')
+            self.printstatistics()
+            self.exit()
+        else:
+            self.scheduled = reactor.callLater(1, self.showreply)
 
-    def handle_CTRL_C(self):
-        self.scheduled.cancel()
+    def printstatistics(self):
         self.writeln('--- %s ping statistics ---' % self.host)
         self.writeln('%d packets transmitted, %d received, 0%% packet loss, time 907ms' % \
             (self.count, self.count))
         self.writeln('rtt min/avg/max/mdev = 48.264/50.352/52.441/2.100 ms')
-        self.exit()
+
+    def handle_CTRL_C(self):
+        if self.running == False:
+            return HoneyPotCommand.handle_CTRL_C(self)
+        else:
+            self.writeln('^C')
+            self.scheduled.cancel()
+            self.printstatistics()
+            self.exit()
+
 commands['/bin/ping'] = command_ping