When determining whether or not "sudo -l" or "sudo -b" should prompt

for a password, take all sudoers sources into account.  In other
words, if both file and ldap sudoers sources are in use, "sudo -v"
will now require that all entries in both sources be have NOPASSWD
(file) or !authenticate (ldap) in the entries.

plugins/sudoers/sudoers.h

@@ -123,6 +123,7 @@ struct sudo_user {
 #define FLAG_NON_INTERACTIVE	0x100
 #define FLAG_BAD_PASSWORD	0x200
 #define FLAG_AUTH_ERROR		0x400
+#define FLAG_NOPASSWD		0x800
 
 /*
  * find_path()/set_cmnd() return values