8  * (c) NLnet Labs, 2004-2022
27 	return edns->_size;  in ldns_edns_get_size()
34 	return edns->_code;  in ldns_edns_get_code()
41 	return edns->_data;  in ldns_edns_get_data()
48 	size_t size;  in ldns_edns_get_wireformat_buffer()  local
50 	ldns_buffer* buffer;  in ldns_edns_get_wireformat_buffer()  local
57 	size = ldns_edns_get_size(edns);  in ldns_edns_get_wireformat_buffer()
60 	buffer = ldns_buffer_new(size + 4);  in ldns_edns_get_wireformat_buffer()
62 	if (buffer == NULL) {  in ldns_edns_get_wireformat_buffer()
66 	ldns_buffer_write_u16(buffer, option);  in ldns_edns_get_wireformat_buffer()
67 	ldns_buffer_write_u16(buffer, size);  in ldns_edns_get_wireformat_buffer()
68 	ldns_buffer_write(buffer, data, size);  in ldns_edns_get_wireformat_buffer()
70 	ldns_buffer_flip(buffer);  in ldns_edns_get_wireformat_buffer()
72 	return buffer;  in ldns_edns_get_wireformat_buffer()
77 ldns_edns_set_size(ldns_edns_option *edns, size_t size)  in ldns_edns_set_size()  argument
80 	edns->_size = size;  in ldns_edns_set_size()
87 	edns->_code = code;  in ldns_edns_set_code()
95 	edns->_data = data;  in ldns_edns_set_data()
100 ldns_edns_new(ldns_edns_option_code code, size_t size, void *data)  in ldns_edns_new()  argument
108 	ldns_edns_set_size(edns, size);  in ldns_edns_new()
115 ldns_edns_new_from_data(ldns_edns_option_code code, size_t size, const void *data)  in ldns_edns_new_from_data()  argument
122 	edns->_data = LDNS_XMALLOC(uint8_t, size);  in ldns_edns_new_from_data()
123 	if (!edns->_data) {  in ldns_edns_new_from_data()
130 	ldns_edns_set_size(edns, size);  in ldns_edns_new_from_data()
131 	memcpy(edns->_data, data, size);  in ldns_edns_new_from_data()
154 		if (edns->_data) {  in ldns_edns_deep_free()
155 			LDNS_FREE(edns->_data);  in ldns_edns_deep_free()
177 	option_list->_option_count = 0;  in ldns_edns_option_list_new()
178 	option_list->_option_capacity = 0;  in ldns_edns_option_list_new()
179 	option_list->_options_size = 0;  in ldns_edns_option_list_new()
180 	option_list->_options = NULL;  in ldns_edns_option_list_new()
199 	if (old_list->_option_count == 0) {  in ldns_edns_option_list_clone()
203 	/* adding options also updates the total options size */  in ldns_edns_option_list_clone()
204 	for (i = 0; i < old_list->_option_count; i++) {  in ldns_edns_option_list_clone()
219 		LDNS_FREE(option_list->_options);  in ldns_edns_option_list_free()
241 		return option_list->_option_count;  in ldns_edns_option_list_get_count()
251 		assert(option_list->_options[index]);  in ldns_edns_option_list_get_option()
252 		return option_list->_options[index];  in ldns_edns_option_list_get_option()
262 		return option_list->_options_size;  in ldns_edns_option_list_get_options_size()
287 	/* shrink the total EDNS size if the old EDNS option exists */  in ldns_edns_option_list_set_option()
289 		option_list->_options_size -= (ldns_edns_get_size(old) + 4);  in ldns_edns_option_list_set_option()
292 	option_list->_options_size += (ldns_edns_get_size(option) + 4);  in ldns_edns_option_list_set_option()
294 	option_list->_options[index] = option;  in ldns_edns_option_list_set_option()
311 	cap = option_list->_option_capacity;  in ldns_edns_option_list_push()
320 			cap = LDNS_OPTIONLIST_INIT; /* initial list size */  in ldns_edns_option_list_push()
325 		new_list = LDNS_XREALLOC(option_list->_options,  in ldns_edns_option_list_push()
332 		option_list->_options = new_list;  in ldns_edns_option_list_push()
333 		option_list->_option_capacity = cap;  in ldns_edns_option_list_push()
338 		option_list->_option_count);  in ldns_edns_option_list_push()
339 	option_list->_option_count += 1;  in ldns_edns_option_list_push()
353 	cap = option_list->_option_capacity;  in ldns_edns_option_list_pop()
360 	pop = ldns_edns_option_list_get_option(option_list, count-1);  in ldns_edns_option_list_pop()
363 	if (cap > LDNS_OPTIONLIST_INIT && count-1 <= cap/2) {  in ldns_edns_option_list_pop()
368 		new_list = LDNS_XREALLOC(option_list->_options,  in ldns_edns_option_list_pop()
371 			option_list->_options = new_list;  in ldns_edns_option_list_pop()
376 	/* shrink the total EDNS size of the options if the popped EDNS option exists */  in ldns_edns_option_list_pop()
378 		option_list->_options_size -= (ldns_edns_get_size(pop) + 4);  in ldns_edns_option_list_pop()
381 	option_list->_option_count = count - 1;  in ldns_edns_option_list_pop()
389 	size_t i, list_size, options_size, option, size;  in ldns_edns_option_list2wireformat_buffer()  local
390 	ldns_buffer* buffer;  in ldns_edns_option_list2wireformat_buffer()  local
401 	/* create buffer the size of the total EDNS wireformat options */  in ldns_edns_option_list2wireformat_buffer()
403 	buffer = ldns_buffer_new(options_size);  in ldns_edns_option_list2wireformat_buffer()
405 	if (!buffer) {  in ldns_edns_option_list2wireformat_buffer()
409 	/* write individual serialized EDNS options to final buffer*/  in ldns_edns_option_list2wireformat_buffer()
419 		size = ldns_edns_get_size(edns);  in ldns_edns_option_list2wireformat_buffer()
423 		if (!(ldns_buffer_available(buffer, size + 4))) {  in ldns_edns_option_list2wireformat_buffer()
424 			ldns_buffer_free(buffer);  in ldns_edns_option_list2wireformat_buffer()
428 		ldns_buffer_write_u16(buffer, option);  in ldns_edns_option_list2wireformat_buffer()
429 		ldns_buffer_write_u16(buffer, size);  in ldns_edns_option_list2wireformat_buffer()
430 		ldns_buffer_write(buffer, data, size);  in ldns_edns_option_list2wireformat_buffer()
433 	ldns_buffer_flip(buffer);  in ldns_edns_option_list2wireformat_buffer()
435 	return buffer;  in ldns_edns_option_list2wireformat_buffer()