JRA 230 source3/include/smb_macros.h NULL returns on zero request. JRA. JRA 2963 source3/lib/util.c NULL returns on zero request. JRA. JRA 101 source3/libaddns/dns.h NULL returns on zero request. JRA. JRA 3405 source3/libads/ldap.c SAVED CODE - we used to join via ldap - remember how we did this. JRA.