diff --git a/src/common/cs_dbg.c b/src/common/cs_dbg.c
index da1bc2e9..62a5816d 100644
--- a/src/common/cs_dbg.c
+++ b/src/common/cs_dbg.c
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #include "common/cs_dbg.h"
diff --git a/src/common/cs_dbg.h b/src/common/cs_dbg.h
index 24a70220..5e964334 100644
--- a/src/common/cs_dbg.h
+++ b/src/common/cs_dbg.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_CS_DBG_H_
diff --git a/src/common/cs_md5.h b/src/common/cs_md5.h
index 1450fd26..302b0327 100644
--- a/src/common/cs_md5.h
+++ b/src/common/cs_md5.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_MD5_H_
diff --git a/src/common/cs_time.c b/src/common/cs_time.c
index f21845cf..f14de39e 100644
--- a/src/common/cs_time.c
+++ b/src/common/cs_time.c
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #include "common/cs_time.h"
diff --git a/src/common/cs_time.h b/src/common/cs_time.h
index 3b590735..eba53957 100644
--- a/src/common/cs_time.h
+++ b/src/common/cs_time.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_CS_TIME_H_
diff --git a/src/common/mg_mem.h b/src/common/mg_mem.h
index 65d71c7c..7fe8381d 100644
--- a/src/common/mg_mem.h
+++ b/src/common/mg_mem.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_MG_MEM_H_
diff --git a/src/common/platforms/arm/arm_exc.c b/src/common/platforms/arm/arm_exc.c
index 60b50c89..7f83b3cc 100644
--- a/src/common/platforms/arm/arm_exc.c
+++ b/src/common/platforms/arm/arm_exc.c
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2017 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #include <stdint.h>
diff --git a/src/common/platforms/cc3200/cc3200_libc.c b/src/common/platforms/cc3200/cc3200_libc.c
index f488725b..5262917b 100644
--- a/src/common/platforms/cc3200/cc3200_libc.c
+++ b/src/common/platforms/cc3200/cc3200_libc.c
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #if CS_PLATFORM == CS_P_CC3200
diff --git a/src/common/platforms/esp/stub_flasher.c b/src/common/platforms/esp/stub_flasher.c
index be7398cf..d733d359 100644
--- a/src/common/platforms/esp/stub_flasher.c
+++ b/src/common/platforms/esp/stub_flasher.c
@@ -1,20 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
  *
- * Spiffy flasher. Implements strong checksums (MD5) and can use higher
- * baud rates. Actual max baud rate will differe from device to device,
- * but 921K seems to be common.
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- * SLIP protocol is used for communication.
- * First packet is a single byte - command number.
- * After that, a packet with a variable number of 32-bit (LE) arguments,
- * depending on command.
+ *     http://www.apache.org/licenses/LICENSE-2.0
  *
- * Then command produces variable number of packets of output, but first
- * packet of length 1 is the response code: 0 for success, non-zero - error.
- *
- * See individual command description below.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #include "stub_flasher.h"
diff --git a/src/common/platforms/esp32/stubs/led.c b/src/common/platforms/esp32/stubs/led.c
index 6cfc766f..dfa69210 100644
--- a/src/common/platforms/esp32/stubs/led.c
+++ b/src/common/platforms/esp32/stubs/led.c
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2017 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #include "soc/gpio_reg.h"
diff --git a/src/common/platforms/esp32/stubs/led.h b/src/common/platforms/esp32/stubs/led.h
index 505a3f6a..e79733d9 100644
--- a/src/common/platforms/esp32/stubs/led.h
+++ b/src/common/platforms/esp32/stubs/led.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2017 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #pragma once
diff --git a/src/common/platforms/esp32/stubs/stub_hello.c b/src/common/platforms/esp32/stubs/stub_hello.c
index a4c75eb9..3f64a406 100644
--- a/src/common/platforms/esp32/stubs/stub_hello.c
+++ b/src/common/platforms/esp32/stubs/stub_hello.c
@@ -1,9 +1,18 @@
 /*
- * Copyright (c) 2015 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
  *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- * Stub template.
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #include <inttypes.h>
diff --git a/src/common/platforms/esp32/stubs/uart.c b/src/common/platforms/esp32/stubs/uart.c
index c6eb25dc..8d2bca74 100644
--- a/src/common/platforms/esp32/stubs/uart.c
+++ b/src/common/platforms/esp32/stubs/uart.c
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #include "uart.h"
diff --git a/src/common/platforms/esp32/stubs/uart.h b/src/common/platforms/esp32/stubs/uart.h
index aa3c4ed0..b28edf88 100644
--- a/src/common/platforms/esp32/stubs/uart.h
+++ b/src/common/platforms/esp32/stubs/uart.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_PLATFORMS_ESP32_STUBS_UART_H_
diff --git a/src/common/platforms/esp8266/esp_crypto.c b/src/common/platforms/esp8266/esp_crypto.c
index 3d2afa14..6469cae0 100644
--- a/src/common/platforms/esp8266/esp_crypto.c
+++ b/src/common/platforms/esp8266/esp_crypto.c
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #include <stdbool.h>
diff --git a/src/common/platforms/esp8266/esp_hw_wdt_register.h b/src/common/platforms/esp8266/esp_hw_wdt_register.h
index 32c2f3cf..681d31ac 100644
--- a/src/common/platforms/esp8266/esp_hw_wdt_register.h
+++ b/src/common/platforms/esp8266/esp_hw_wdt_register.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2017 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_PLATFORMS_ESP8266_ESP_HW_WDT_REGISTER_H_
diff --git a/src/common/platforms/esp8266/esp_missing_includes.h b/src/common/platforms/esp8266/esp_missing_includes.h
index fc7d69f3..e6ef8e7c 100644
--- a/src/common/platforms/esp8266/esp_missing_includes.h
+++ b/src/common/platforms/esp8266/esp_missing_includes.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_PLATFORMS_ESP8266_ESP_MISSING_INCLUDES_H_
diff --git a/src/common/platforms/esp8266/esp_ssl_krypton.h b/src/common/platforms/esp8266/esp_ssl_krypton.h
index 086c6b50..75a2353b 100644
--- a/src/common/platforms/esp8266/esp_ssl_krypton.h
+++ b/src/common/platforms/esp8266/esp_ssl_krypton.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_PLATFORMS_ESP8266_ESP_SSL_KRYPTON_H_
diff --git a/src/common/platforms/esp8266/esp_umm_malloc.c b/src/common/platforms/esp8266/esp_umm_malloc.c
index 3dd4a0e7..15869a71 100644
--- a/src/common/platforms/esp8266/esp_umm_malloc.c
+++ b/src/common/platforms/esp8266/esp_umm_malloc.c
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #include <string.h>
diff --git a/src/common/platforms/esp8266/esp_umm_malloc.h b/src/common/platforms/esp8266/esp_umm_malloc.h
index efb6f4ba..f838e4f3 100644
--- a/src/common/platforms/esp8266/esp_umm_malloc.h
+++ b/src/common/platforms/esp8266/esp_umm_malloc.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #if ESP_UMM_ENABLE
diff --git a/src/common/platforms/esp8266/stubs/stub_hello.c b/src/common/platforms/esp8266/stubs/stub_hello.c
index 10a827d9..83c035c4 100644
--- a/src/common/platforms/esp8266/stubs/stub_hello.c
+++ b/src/common/platforms/esp8266/stubs/stub_hello.c
@@ -1,9 +1,18 @@
 /*
- * Copyright (c) 2015 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
  *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- * Stub template.
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #include <inttypes.h>
diff --git a/src/common/platforms/esp8266/stubs/uart.c b/src/common/platforms/esp8266/stubs/uart.c
index 5651bd84..cb99b2d9 100644
--- a/src/common/platforms/esp8266/stubs/uart.c
+++ b/src/common/platforms/esp8266/stubs/uart.c
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #include "uart.h"
diff --git a/src/common/platforms/esp8266/stubs/uart.h b/src/common/platforms/esp8266/stubs/uart.h
index fc321c2a..ad3ef1dc 100644
--- a/src/common/platforms/esp8266/stubs/uart.h
+++ b/src/common/platforms/esp8266/stubs/uart.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_PLATFORMS_ESP8266_STUBS_UART_H_
diff --git a/src/common/platforms/lwip/mg_lwip.h b/src/common/platforms/lwip/mg_lwip.h
index 1a772aa1..c0d4081e 100644
--- a/src/common/platforms/lwip/mg_lwip.h
+++ b/src/common/platforms/lwip/mg_lwip.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_PLATFORMS_LWIP_MG_LWIP_H_
diff --git a/src/common/platforms/lwip/mg_lwip_ev_mgr.c b/src/common/platforms/lwip/mg_lwip_ev_mgr.c
index 11a1bfc1..1e844a82 100644
--- a/src/common/platforms/lwip/mg_lwip_ev_mgr.c
+++ b/src/common/platforms/lwip/mg_lwip_ev_mgr.c
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #if MG_NET_IF == MG_NET_IF_LWIP_LOW_LEVEL
diff --git a/src/common/platforms/lwip/mg_lwip_net_if.c b/src/common/platforms/lwip/mg_lwip_net_if.c
index b9042e83..f73f607a 100644
--- a/src/common/platforms/lwip/mg_lwip_net_if.c
+++ b/src/common/platforms/lwip/mg_lwip_net_if.c
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #if MG_ENABLE_NET_IF_LWIP_LOW_LEVEL
diff --git a/src/common/platforms/lwip/mg_lwip_net_if.h b/src/common/platforms/lwip/mg_lwip_net_if.h
index d94cfdf6..d9827a90 100644
--- a/src/common/platforms/lwip/mg_lwip_net_if.h
+++ b/src/common/platforms/lwip/mg_lwip_net_if.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_PLATFORMS_LWIP_MG_NET_IF_LWIP_H_
diff --git a/src/common/platforms/mbed/mbed_libc.c b/src/common/platforms/mbed/mbed_libc.c
index a5b35b1f..ef8e6abb 100644
--- a/src/common/platforms/mbed/mbed_libc.c
+++ b/src/common/platforms/mbed/mbed_libc.c
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #include "common/platform.h"
diff --git a/src/common/platforms/msp432/msp432_libc.c b/src/common/platforms/msp432/msp432_libc.c
index faedadc2..de1e6ba8 100644
--- a/src/common/platforms/msp432/msp432_libc.c
+++ b/src/common/platforms/msp432/msp432_libc.c
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #if CS_PLATFORM == CS_P_MSP432
diff --git a/src/common/platforms/nrf5/nrf5_libc.c b/src/common/platforms/nrf5/nrf5_libc.c
index 9cf66dcc..65d05ed4 100644
--- a/src/common/platforms/nrf5/nrf5_libc.c
+++ b/src/common/platforms/nrf5/nrf5_libc.c
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #if (CS_PLATFORM == CS_P_NRF51 || CS_PLATFORM == CS_P_NRF52) && \
diff --git a/src/common/platforms/pic32/pic32_net_if.c b/src/common/platforms/pic32/pic32_net_if.c
index d0e67e9a..49618c57 100644
--- a/src/common/platforms/pic32/pic32_net_if.c
+++ b/src/common/platforms/pic32/pic32_net_if.c
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #if MG_ENABLE_NET_IF_PIC32
diff --git a/src/common/platforms/pic32/pic32_net_if.h b/src/common/platforms/pic32/pic32_net_if.h
index 2bf66ef6..52ae891d 100644
--- a/src/common/platforms/pic32/pic32_net_if.h
+++ b/src/common/platforms/pic32/pic32_net_if.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_PLATFORMS_PIC32_NET_IF_H_
diff --git a/src/common/platforms/platform_cc3100.h b/src/common/platforms/platform_cc3100.h
index ba07f220..8e847fcf 100644
--- a/src/common/platforms/platform_cc3100.h
+++ b/src/common/platforms/platform_cc3100.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_PLATFORMS_PLATFORM_CC3100_H_
diff --git a/src/common/platforms/platform_cc3200.h b/src/common/platforms/platform_cc3200.h
index 1c2033af..00ef9fa3 100644
--- a/src/common/platforms/platform_cc3200.h
+++ b/src/common/platforms/platform_cc3200.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_PLATFORMS_PLATFORM_CC3200_H_
diff --git a/src/common/platforms/platform_cc3220.h b/src/common/platforms/platform_cc3220.h
index 6992e142..c5336e33 100644
--- a/src/common/platforms/platform_cc3220.h
+++ b/src/common/platforms/platform_cc3220.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_PLATFORMS_PLATFORM_CC3220_H_
diff --git a/src/common/platforms/platform_esp32.h b/src/common/platforms/platform_esp32.h
index 4580f75a..b1af9da5 100644
--- a/src/common/platforms/platform_esp32.h
+++ b/src/common/platforms/platform_esp32.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_PLATFORMS_PLATFORM_ESP32_H_
diff --git a/src/common/platforms/platform_esp8266.h b/src/common/platforms/platform_esp8266.h
index b3971013..0428f058 100644
--- a/src/common/platforms/platform_esp8266.h
+++ b/src/common/platforms/platform_esp8266.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_PLATFORMS_PLATFORM_ESP8266_H_
diff --git a/src/common/platforms/platform_mbed.h b/src/common/platforms/platform_mbed.h
index ab3f5639..5f37862a 100644
--- a/src/common/platforms/platform_mbed.h
+++ b/src/common/platforms/platform_mbed.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_PLATFORMS_PLATFORM_MBED_H_
diff --git a/src/common/platforms/platform_msp432.h b/src/common/platforms/platform_msp432.h
index d8cf16a1..d9c5e183 100644
--- a/src/common/platforms/platform_msp432.h
+++ b/src/common/platforms/platform_msp432.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_PLATFORMS_PLATFORM_MSP432_H_
diff --git a/src/common/platforms/platform_nrf51.h b/src/common/platforms/platform_nrf51.h
index 55f89dda..6f1357bd 100644
--- a/src/common/platforms/platform_nrf51.h
+++ b/src/common/platforms/platform_nrf51.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 #ifndef CS_COMMON_PLATFORMS_PLATFORM_NRF51_H_
 #define CS_COMMON_PLATFORMS_PLATFORM_NRF51_H_
diff --git a/src/common/platforms/platform_nrf52.h b/src/common/platforms/platform_nrf52.h
index 3516cf90..2b8b882f 100644
--- a/src/common/platforms/platform_nrf52.h
+++ b/src/common/platforms/platform_nrf52.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 #ifndef CS_COMMON_PLATFORMS_PLATFORM_NRF52_H_
 #define CS_COMMON_PLATFORMS_PLATFORM_NRF52_H_
diff --git a/src/common/platforms/platform_nxp_kinetis.h b/src/common/platforms/platform_nxp_kinetis.h
index b4ffd531..d9265e91 100644
--- a/src/common/platforms/platform_nxp_kinetis.h
+++ b/src/common/platforms/platform_nxp_kinetis.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_PLATFORMS_PLATFORM_NXP_KINETIS_H_
diff --git a/src/common/platforms/platform_nxp_lpc.h b/src/common/platforms/platform_nxp_lpc.h
index cf9b7e70..7bb12c5e 100644
--- a/src/common/platforms/platform_nxp_lpc.h
+++ b/src/common/platforms/platform_nxp_lpc.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_PLATFORMS_PLATFORM_NXP_LPC_H_
diff --git a/src/common/platforms/platform_pic32.h b/src/common/platforms/platform_pic32.h
index b5680252..f2072c3e 100644
--- a/src/common/platforms/platform_pic32.h
+++ b/src/common/platforms/platform_pic32.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_PLATFORMS_PLATFORM_PIC32_H_
diff --git a/src/common/platforms/platform_stm32.h b/src/common/platforms/platform_stm32.h
index ece78c82..6b937569 100644
--- a/src/common/platforms/platform_stm32.h
+++ b/src/common/platforms/platform_stm32.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_PLATFORMS_PLATFORM_STM32_H_
diff --git a/src/common/platforms/platform_tm4c129.h b/src/common/platforms/platform_tm4c129.h
index 5e87b948..dc75d79d 100644
--- a/src/common/platforms/platform_tm4c129.h
+++ b/src/common/platforms/platform_tm4c129.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_PLATFORMS_PLATFORM_TM4C129_H_
diff --git a/src/common/platforms/simplelink/cs_simplelink.h b/src/common/platforms/simplelink/cs_simplelink.h
index ed6afa2e..2b415410 100644
--- a/src/common/platforms/simplelink/cs_simplelink.h
+++ b/src/common/platforms/simplelink/cs_simplelink.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_PLATFORMS_SIMPLELINK_CS_SIMPLELINK_H_
diff --git a/src/common/platforms/simplelink/sl_fs.c b/src/common/platforms/simplelink/sl_fs.c
index fc093429..bc055c1f 100644
--- a/src/common/platforms/simplelink/sl_fs.c
+++ b/src/common/platforms/simplelink/sl_fs.c
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #if MG_NET_IF == MG_NET_IF_SIMPLELINK && \
diff --git a/src/common/platforms/simplelink/sl_fs_slfs.c b/src/common/platforms/simplelink/sl_fs_slfs.c
index 2754b6bf..8170310b 100644
--- a/src/common/platforms/simplelink/sl_fs_slfs.c
+++ b/src/common/platforms/simplelink/sl_fs_slfs.c
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 /* Standard libc interface to TI SimpleLink FS. */
diff --git a/src/common/platforms/simplelink/sl_fs_slfs.h b/src/common/platforms/simplelink/sl_fs_slfs.h
index 0d8a4b1c..eb909c1b 100644
--- a/src/common/platforms/simplelink/sl_fs_slfs.h
+++ b/src/common/platforms/simplelink/sl_fs_slfs.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_PLATFORMS_SIMPLELINK_SL_FS_SLFS_H_
diff --git a/src/common/platforms/simplelink/sl_net_if.c b/src/common/platforms/simplelink/sl_net_if.c
index fcc5632b..1a000ce7 100644
--- a/src/common/platforms/simplelink/sl_net_if.c
+++ b/src/common/platforms/simplelink/sl_net_if.c
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #include "common/platforms/simplelink/sl_net_if.h"
diff --git a/src/common/platforms/simplelink/sl_net_if.h b/src/common/platforms/simplelink/sl_net_if.h
index aa49d5de..c72bd28b 100644
--- a/src/common/platforms/simplelink/sl_net_if.h
+++ b/src/common/platforms/simplelink/sl_net_if.h
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_PLATFORMS_SIMPLELINK_SL_NET_IF_H_
diff --git a/src/common/platforms/simplelink/sl_socket.c b/src/common/platforms/simplelink/sl_socket.c
index e4a0c26a..101fb636 100644
--- a/src/common/platforms/simplelink/sl_socket.c
+++ b/src/common/platforms/simplelink/sl_socket.c
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #if MG_NET_IF == MG_NET_IF_SIMPLELINK
diff --git a/src/common/platforms/simplelink/sl_ssl_if.c b/src/common/platforms/simplelink/sl_ssl_if.c
index 0cd9c25b..6e4daa6e 100644
--- a/src/common/platforms/simplelink/sl_ssl_if.c
+++ b/src/common/platforms/simplelink/sl_ssl_if.c
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #if MG_ENABLE_SSL && MG_SSL_IF == MG_SSL_IF_SIMPLELINK
diff --git a/src/common/platforms/wince/wince_libc.c b/src/common/platforms/wince/wince_libc.c
index b385fde7..c0f51928 100644
--- a/src/common/platforms/wince/wince_libc.c
+++ b/src/common/platforms/wince/wince_libc.c
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifdef WINCE
diff --git a/src/common/platforms/windows/windows_direct.c b/src/common/platforms/windows/windows_direct.c
index 89328998..796a416d 100644
--- a/src/common/platforms/windows/windows_direct.c
+++ b/src/common/platforms/windows/windows_direct.c
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2017 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifdef _WIN32
diff --git a/src/common/test_main.c b/src/common/test_main.c
index 53116d92..5057cbc9 100644
--- a/src/common/test_main.c
+++ b/src/common/test_main.c
@@ -1,6 +1,18 @@
 /*
  * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #include "common/cs_dbg.h"
diff --git a/src/common/test_main.h b/src/common/test_main.h
index 6b6f5f39..915b560a 100644
--- a/src/common/test_main.h
+++ b/src/common/test_main.h
@@ -1,6 +1,18 @@
 /*
  * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_TEST_MAIN_H_
diff --git a/src/common/test_util.c b/src/common/test_util.c
index 705a12fb..f2782f83 100644
--- a/src/common/test_util.c
+++ b/src/common/test_util.c
@@ -1,6 +1,18 @@
 /*
- * Copyright (c) 2014-2016 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #include "common/test_util.h"
diff --git a/src/common/test_util.h b/src/common/test_util.h
index 60618f10..7af3ab5e 100644
--- a/src/common/test_util.h
+++ b/src/common/test_util.h
@@ -1,18 +1,18 @@
 /*
- * Copyright (c) 2015 Cesanta Software Limited
+ * Copyright (c) 2014-2018 Cesanta Software Limited
  * All rights reserved
- * This software is dual-licensed: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation. For the terms of this
- * license, see <http://www.gnu.org/licenses/>.
  *
- * You are free to use this software under the terms of the GNU General
- * Public License, but WITHOUT ANY WARRANTY; without even the implied
- * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- * See the GNU General Public License for more details.
+ * Licensed under the Apache License, Version 2.0 (the ""License"");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- * Alternatively, you can license this software under a commercial
- * license, as set out in <https://www.cesanta.com/license>.
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an ""AS IS"" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef CS_COMMON_TEST_UTIL_H_