LDAP_SRV_HEAD
LDAP_SRV_HEAD DC_SRV_TAIL, &srvname);
dname = strdup(srvname + strlen(LDAP_SRV_HEAD DC_SRV_TAIL) +
LDAP_SRV_HEAD SITE_SRV_MIDDLE DC_SRV_TAIL,
LDAP_SRV_HEAD DC_SRV_TAIL,
LDAP_SRV_HEAD SITE_SRV_MIDDLE GC_SRV_TAIL,
LDAP_SRV_HEAD GC_SRV_TAIL,