update 'cat' to wait on stdin.

cowrie/commands/fs.py

@@ -11,7 +11,10 @@ from cowrie.core.fs import *
 commands = {}
 
 class command_cat(HoneyPotCommand):
-    def call(self):
+    def start(self):
+        if not self.args or self.args[0] == '>':
+            pass
+        else:
             for arg in self.args:
                 path = self.fs.resolve_path(arg, self.honeypot.cwd)
                 if self.fs.is_dir(path):
@@ -21,6 +24,11 @@ class command_cat(HoneyPotCommand):
                     self.write(self.fs.file_contents(path))
                 except:
                     self.writeln('cat: %s: No such file or directory' % (arg,))
+                self.exit()
+
+    def lineReceived(self, line):
+        log.msg( eventid='KIPP0008', realm='cat', input=line,
+            format='INPUT (%(realm)s): %(input)s' )
 
 commands['/bin/cat'] = command_cat