4  * SPDX-License-Identifier: Apache-2.0
47 	return ptr - (char *)buf;  in make_request()
72 		sys_put_be16(DATA_OPCODE, client->tftp_buf);  in send_data()
73 		sys_put_be16(block_no, client->tftp_buf + 2);  in send_data()
74 		memcpy(client->tftp_buf + TFTP_HEADER_SIZE, data_buffer, data_size);  in send_data()
76 		ret = zsock_send(sock, client->tftp_buf, data_size + TFTP_HEADER_SIZE, 0);  in send_data()
78 			LOG_ERR("send() error: %d", -errno);  in send_data()
79 			return -errno;  in send_data()
90 				LOG_ERR("recv() error: %d", -errno);  in send_data()
91 				return -errno;  /* IO error */  in send_data()
93 				break;		/* no response, re-send data */  in send_data()
96 			ret = zsock_recv(sock, client->tftp_buf, TFTPC_MAX_BUF_SIZE, 0);  in send_data()
98 				LOG_ERR("recv() error: %d", -errno);  in send_data()
99 				return -errno;  in send_data()
103 				break; /* wrong response, re-send data */  in send_data()
106 			uint16_t opcode = sys_get_be16(client->tftp_buf);  in send_data()
107 			uint16_t blockno = sys_get_be16(client->tftp_buf + 2);  in send_data()
119 				if (client->callback) {  in send_data()
124 					evt.param.error.msg = client->tftp_buf + TFTP_HEADER_SIZE;  in send_data()
126 					client->callback(&evt);  in send_data()
132 				break; /* wrong response, re-send data */  in send_data()
149 	LOG_DBG("Client sending error code: %d", err_code);  in send_err()
152 	sys_put_be16(ERROR_OPCODE, client->tftp_buf);  in send_err()
153 	sys_put_be16(err_code, client->tftp_buf + 2);  in send_err()
160 		if (copy_len > sizeof(client->tftp_buf) - req_size) {  in send_err()
161 			copy_len = sizeof(client->tftp_buf) - req_size;  in send_err()
164 		memcpy(client->tftp_buf + req_size, err_msg, copy_len);  in send_err()
169 	return zsock_send(sock, client->tftp_buf, req_size, 0);  in send_err()
177 	LOG_DBG("Client acking block number: %d", ntohs(ackhdr->block));  in send_ack()
190 	req_size = make_request(client->tftp_buf, request, remote_file, mode);  in send_request()
195 		LOG_DBG("Sending TFTP request %d file %s", request,  in send_request()
199 		ret = zsock_sendto(sock, client->tftp_buf, req_size, 0, &client->server,  in send_request()
200 				   ADDRLEN(client->server));  in send_request()
222 		ret = zsock_recvfrom(sock, client->tftp_buf, TFTPC_MAX_BUF_SIZE, 0,  in send_request()
225 			req_size = make_request(client->tftp_buf, request,  in send_request()
232 			ret = -errno;  in send_request()
258 		return -EINVAL;  in tftp_get()
261 	sock = zsock_socket(client->server.sa_family, SOCK_DGRAM, IPPROTO_UDP);  in tftp_get()
264 		return -errno;  in tftp_get()
273 		uint16_t opcode = sys_get_be16(client->tftp_buf);  in tftp_get()
274 		uint16_t block_no = sys_get_be16(client->tftp_buf + 2);  in tftp_get()
280 			if (client->callback) {  in tftp_get()
285 				evt.param.error.msg = client->tftp_buf + TFTP_HEADER_SIZE;  in tftp_get()
287 				client->callback(&evt);  in tftp_get()
298 			uint32_t data_size = rcv_size - TFTP_HEADER_SIZE;  in tftp_get()
304 			if (client->callback == NULL) {  in tftp_get()
308 						-errno);  in tftp_get()
319 			evt.param.data.data_ptr = client->tftp_buf + TFTP_HEADER_SIZE;  in tftp_get()
321 			client->callback(&evt);  in tftp_get()
334 				 * terminate its side of the connection on sending the final ACK.  in tftp_get()
359 		ret = zsock_recv(sock, client->tftp_buf, TFTPC_MAX_BUF_SIZE, 0);  in tftp_get()
383 		return -EINVAL;  in tftp_put()
386 	sock = zsock_socket(client->server.sa_family, SOCK_DGRAM, IPPROTO_UDP);  in tftp_put()
389 		return -errno;  in tftp_put()
397 		uint16_t opcode = sys_get_be16(client->tftp_buf);  in tftp_put()
398 		uint16_t block_no = sys_get_be16(client->tftp_buf + 2);  in tftp_put()
403 			if (client->callback) {  in tftp_put()
408 				evt.param.error.msg = client->tftp_buf + TFTP_HEADER_SIZE;  in tftp_put()
410 				client->callback(&evt);  in tftp_put()
427 		send_size = user_buf_size - tftpc_index;  in tftp_put()