added NO_PASSWD

OPTIONS

@@ -64,6 +64,12 @@ EXEMPTGROUP
     a password but where Jr. sysadmins need to.
     This is off by default.
 
+NO_PASSWD
+    If this is defined then sudo will *never* ask for a password.
+    It should only be used in an environment where machines are
+    physically secure.  It would be a very bad idea for an open
+    lab.
+
 ENV_EDITOR
     Makes visudo consult the EDITOR and VISUAL environmental variables
     before falling back on the default editor.  Note that this may create

options.h

@@ -40,6 +40,7 @@
 #define SEND_MAIL_WHEN_NO_USER	/* send mail when user not in sudoers file */
 /*#define SEND_MAIL_WHEN_NOT_OK	/* send mail if no permissions to run command */
 /*#define EXEMPTGROUP "sudo"	/* no passwd needed for users in this group */
+/*#define NO_PASSWD		/* no passwds are required */
 /*#define ENV_EDITOR		/* visudo honors EDITOR and VISUAL envars */
 #define SHORT_MESSAGE		/* short sudo message, no copyright printed */
 #define TIMEOUT 5		/* minutes before sudo asks for passwd again */

sudo.c

@@ -291,7 +291,9 @@ int main(argc, argv)
 	remove_timestamp();	/* remove the timestamp ticket file */
 	exit(0);
     } else if (sudo_mode == MODE_LIST) {
+#ifndef NO_PASSWD
 	check_user();
+#endif /* NO_PASSWD */
 	log_error(ALL_SYSTEMS_GO);
 	(void) validate(FALSE);
 	exit(0);
@@ -304,7 +306,9 @@ int main(argc, argv)
     switch (rtn) {
 
 	case VALIDATE_OK:
+#ifndef NO_PASSWD
 	    check_user();
+#endif /* NO_PASSWD */
 	    log_error(ALL_SYSTEMS_GO);
 	    if (sudo_mode == MODE_VALIDATE)
 		exit(0);