+#define PHP_HTTP_DO_NEGOTIATE_DEFAULT(supported) \
+ { \
+ zval *value; \
+ \
+ zend_hash_internal_pointer_reset((supported)); \
+ if ((value = zend_hash_get_current_data((supported)))) { \
+ RETVAL_ZVAL_FAST(value); \
+ } else { \
+ RETVAL_NULL(); \
+ } \
+ }
+
+#define PHP_HTTP_DO_NEGOTIATE_HANDLE_DEFAULT(supported, rs_array) \
+ PHP_HTTP_DO_NEGOTIATE_DEFAULT(supported); \
+ if (rs_array) { \
+ zval *value; \
+ \
+ ZEND_HASH_FOREACH_VAL(supported, value) \
+ { \
+ zend_string *zs = zval_get_string(value); \
+ add_assoc_double_ex(rs_array, zs->val, zs->len, 1.0); \
+ zend_string_release(zs); \
+ } \
+ ZEND_HASH_FOREACH_END(); \
+ }
+
+#define PHP_HTTP_DO_NEGOTIATE_HANDLE_RESULT(result, supported, rs_array) \
+ { \
+ zend_string *key; \
+ zend_ulong idx; \
+ \
+ if (zend_hash_num_elements(result) && HASH_KEY_IS_STRING == zend_hash_get_current_key(result, &key, &idx)) { \
+ RETVAL_STR_COPY(key); \
+ } else { \
+ PHP_HTTP_DO_NEGOTIATE_DEFAULT(supported); \
+ } \
+ \
+ if (rs_array) { \
+ zend_hash_copy(Z_ARRVAL_P(rs_array), result, (copy_ctor_func_t) zval_add_ref); \
+ } \
+ \
+ zend_hash_destroy(result); \
+ FREE_HASHTABLE(result); \
+ }
+
+#define PHP_HTTP_DO_NEGOTIATE(type, supported, rs_array) \
+ { \
+ HashTable *result; \
+ if ((result = php_http_negotiate_ ##type(supported, NULL TSRMLS_CC))) { \
+ PHP_HTTP_DO_NEGOTIATE_HANDLE_RESULT(result, supported, rs_array); \
+ } else { \
+ PHP_HTTP_DO_NEGOTIATE_HANDLE_DEFAULT(supported, rs_array); \
+ } \
+ }