93 	return (cpkt != NULL) && (cpkt->max_len - cpkt->offset >= bytes_to_add);  in enough_space()
169 int coap_packet_init(struct coap_packet *cpkt, uint8_t *data, uint16_t max_len,  in coap_packet_init()  argument
176 	if (!cpkt || !data || !max_len) {  in coap_packet_init()
184 	cpkt->max_len = max_len;  in coap_packet_init()
220 		  uint8_t *data, uint16_t max_len, uint8_t code)  in coap_ack_init()  argument
231 	return coap_packet_init(cpkt, data, max_len, ver, COAP_TYPE_ACK, tkl,  in coap_ack_init()
236 		  uint8_t *data, uint16_t max_len)  in coap_rst_init()  argument
244 	return coap_packet_init(cpkt, data, max_len, ver, COAP_TYPE_RESET, 0,  in coap_rst_init()
457 		   uint16_t max_len, uint8_t *value)  in read_u8()  argument
459 	if (max_len - offset < 1) {  in read_u8()
466 	return max_len - offset;  in read_u8()
470 		     uint16_t max_len, uint16_t *value)  in read_be16()  argument
472 	if (max_len - offset < 2) {  in read_be16()
480 	return max_len - offset;  in read_be16()
484 		uint16_t max_len, uint16_t len, uint8_t *value)  in read()  argument
486 	if (max_len - offset < len) {  in read()
494 	return max_len - offset;  in read()
497 static int decode_delta(uint8_t *data, uint16_t offset, uint16_t *pos, uint16_t max_len,  in decode_delta()  argument
507 		ret = read_u8(data, offset, pos, max_len, &val);  in decode_delta()
518 		ret = read_be16(data, offset, pos, max_len, &val);  in decode_delta()
534 			uint16_t max_len, uint16_t *opt_delta, uint16_t *opt_len,  in parse_option()  argument
543 	r = read_u8(data, offset, pos, max_len, &opt);  in parse_option()
569 		r = decode_delta(data, *pos, pos, max_len,  in parse_option()
582 		r = decode_delta(data, *pos, pos, max_len,  in parse_option()
622 		r = read(data, *pos, pos, max_len, len, &option->value[0]);  in parse_option()
631 		r = max_len - *pos;  in parse_option()
769 	cpkt->max_len = len;  in coap_packet_parse()
798 		ret = parse_option(cpkt->data, offset, &offset, cpkt->max_len,  in coap_packet_parse()
925 	if (cpkt->hdr_len == cpkt->max_len) {  in coap_find_options()
936 				 cpkt->max_len, &delta, &opt_len,  in coap_find_options()