LDAP_SASL_CRAM_MD5
mechanism = LDAP_SASL_CRAM_MD5;
if (strcmp(mechanism, LDAP_SASL_CRAM_MD5) == 0){
res = ldap_sasl_bind_s(ld, NULL, LDAP_SASL_CRAM_MD5, &resp, serverctrls, clientctrls, &challenge);
if ((res = ldap_sasl_bind_s(ld, NULL, LDAP_SASL_CRAM_MD5, NULL, serverctrls, clientctrls, &challenge))