add 'free' command to replace txtcmd

cowrie/commands/__init__.py

@@ -10,6 +10,7 @@ __all__ = [
     'dice',
     'env',
     'ethtool',
+    'free',
     'fs',
     'gcc',
     'ifconfig',

cowrie/commands/free.py

@@ -0,0 +1,59 @@
+#
+
+import getopt
+
+from cowrie.core.honeypot import HoneyPotCommand
+
+commands = {}
+
+class command_free(HoneyPotCommand):
+    """
+    free
+    """
+    def call(self):
+        """
+        """
+        # Parse options or display no files
+        try:
+            opts, args = getopt.getopt(self.args, 'mh')
+        except getopt.GetoptError as err:
+            self.no_files()
+            return
+
+        # Parse options
+        for o, a in opts:
+            if o in ('-h'):
+                self.free(format='human')
+                return
+            elif m in ('-m'):
+                self.free(format='megabytes')
+                return
+        self.free()
+
+    def free(format='bytes')
+        """
+        print free statistics
+        """
+
+        if (format eq 'bytes'):
+            self.writeln( 
+"""             total       used       free     shared    buffers     cached
+Mem:       8069256    7872920     196336          0     410340    5295748
+-/+ buffers/cache:    2166832    5902424
+Swap:      3764220     133080    3631140""")
+        elif (format eq 'megabytes'):
+            self.writeln(
+"""             total       used       free     shared    buffers     cached
+Mem:          7880       7690        189          0        400       5171
+-/+ buffers/cache:       2118       5761
+Swap:         3675        129       3546""")
+        elif (format eq 'human'):
+            self.writeln( 
+"""             total       used       free     shared    buffers     cached
+Mem:          7.7G       7.5G       189M         0B       400M       5.1G
+-/+ buffers/cache:       2.1G       5.6G
+Swap:         3.6G       129M       3.5G""")
+        self.exit()
+
+commands['/usr/bin/free'] = command_free
+

txtcmds/usr/bin/free

@@ -1,4 +0,0 @@
-             total       used       free     shared    buffers     cached
-Mem:           242        238          3          0         15         64
--/+ buffers/cache:        159         83
-Swap:          342         76        266