copyright: make repository REUSE compliant

Add licensing and copyright information for all files in this repository. This
either happens in the file itself as a comment header or in the file
`.reuse/dep5`.

This commit also adds a Github workflow to check pull requests and adapts
copyright.pl to the changes.

Closes #8869

31 files changed, 74 insertions, 12 deletions

diff --git a/lib/vtls/bearssl.c b/lib/vtls/bearssl.c
index 91f4416e8..f14eb66a2 100644
--- a/lib/vtls/bearssl.c
+++ b/lib/vtls/bearssl.c
@@ -18,6 +18,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 #include "curl_setup.h"
 
diff --git a/lib/vtls/bearssl.h b/lib/vtls/bearssl.h
index d72b7d0e2..512535996 100644
--- a/lib/vtls/bearssl.h
+++ b/lib/vtls/bearssl.h
@@ -7,7 +7,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 2019 - 2020, Michael Forney, <mforney@mforney.org>
+ * Copyright (C) 2019 - 2022, Michael Forney, <mforney@mforney.org>
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -20,6 +20,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 
 #include "curl_setup.h"
diff --git a/lib/vtls/gskit.c b/lib/vtls/gskit.c
index 7a65f92f2..4ee4edea6 100644
--- a/lib/vtls/gskit.c
+++ b/lib/vtls/gskit.c
@@ -18,6 +18,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 
 #include "curl_setup.h"
diff --git a/lib/vtls/gskit.h b/lib/vtls/gskit.h
index 202df7e07..cf923f6b8 100644
--- a/lib/vtls/gskit.h
+++ b/lib/vtls/gskit.h
@@ -7,7 +7,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -20,6 +20,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 #include "curl_setup.h"
 
diff --git a/lib/vtls/gtls.c b/lib/vtls/gtls.c
index dd8275585..e2d41f410 100644
--- a/lib/vtls/gtls.c
+++ b/lib/vtls/gtls.c
@@ -18,6 +18,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 
 /*
diff --git a/lib/vtls/gtls.h b/lib/vtls/gtls.h
index 642d5f093..abade73f8 100644
--- a/lib/vtls/gtls.h
+++ b/lib/vtls/gtls.h
@@ -7,7 +7,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2021, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -20,6 +20,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 
 #include "curl_setup.h"
diff --git a/lib/vtls/hostcheck.c b/lib/vtls/hostcheck.c
index 8dc97a27d..2a648f20a 100644
--- a/lib/vtls/hostcheck.c
+++ b/lib/vtls/hostcheck.c
@@ -18,6 +18,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 
 #include "curl_setup.h"
diff --git a/lib/vtls/hostcheck.h b/lib/vtls/hostcheck.h
index aa966403d..d3c4eab56 100644
--- a/lib/vtls/hostcheck.h
+++ b/lib/vtls/hostcheck.h
@@ -20,6 +20,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 
 #include <curl/curl.h>
diff --git a/lib/vtls/keylog.c b/lib/vtls/keylog.c
index a45945f8f..747121792 100644
--- a/lib/vtls/keylog.c
+++ b/lib/vtls/keylog.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -18,6 +18,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 #include "curl_setup.h"
 
diff --git a/lib/vtls/keylog.h b/lib/vtls/keylog.h
index 63626da90..5d3c675b3 100644
--- a/lib/vtls/keylog.h
+++ b/lib/vtls/keylog.h
@@ -7,7 +7,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -20,6 +20,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 #include "curl_setup.h"
 
diff --git a/lib/vtls/mbedtls.c b/lib/vtls/mbedtls.c
index b60b9cac5..ad9bd10f8 100644
--- a/lib/vtls/mbedtls.c
+++ b/lib/vtls/mbedtls.c
@@ -19,6 +19,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 
 /*
diff --git a/lib/vtls/mbedtls.h b/lib/vtls/mbedtls.h
index 1abd331ea..ec3b43bf9 100644
--- a/lib/vtls/mbedtls.h
+++ b/lib/vtls/mbedtls.h
@@ -7,7 +7,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 2012 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 2012 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
  * Copyright (C) 2010, Hoi-Ho Chan, <hoiho.chan@gmail.com>
  *
  * This software is licensed as described in the file COPYING, which
@@ -21,6 +21,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 #include "curl_setup.h"
 
diff --git a/lib/vtls/mbedtls_threadlock.c b/lib/vtls/mbedtls_threadlock.c
index 751755c23..3971e69b2 100644
--- a/lib/vtls/mbedtls_threadlock.c
+++ b/lib/vtls/mbedtls_threadlock.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 2013 - 2021, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 2013 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
  * Copyright (C) 2010, 2011, Hoi-Ho Chan, <hoiho.chan@gmail.com>
  *
  * This software is licensed as described in the file COPYING, which
@@ -19,6 +19,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 #include "curl_setup.h"
 
diff --git a/lib/vtls/mbedtls_threadlock.h b/lib/vtls/mbedtls_threadlock.h
index e40dfc8d6..3a50d0381 100644
--- a/lib/vtls/mbedtls_threadlock.h
+++ b/lib/vtls/mbedtls_threadlock.h
@@ -7,7 +7,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 2013 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 2013 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
  * Copyright (C) 2010, Hoi-Ho Chan, <hoiho.chan@gmail.com>
  *
  * This software is licensed as described in the file COPYING, which
@@ -21,6 +21,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 #include "curl_setup.h"
 
diff --git a/lib/vtls/nss.c b/lib/vtls/nss.c
index cb0509ff5..9d3a8584c 100644
--- a/lib/vtls/nss.c
+++ b/lib/vtls/nss.c
@@ -18,6 +18,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 
 /*
diff --git a/lib/vtls/nssg.h b/lib/vtls/nssg.h
index 37b364647..454a38f1f 100644
--- a/lib/vtls/nssg.h
+++ b/lib/vtls/nssg.h
@@ -7,7 +7,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -20,6 +20,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 #include "curl_setup.h"
 
diff --git a/lib/vtls/openssl.c b/lib/vtls/openssl.c
index 95a18a6d0..78aacd022 100644
--- a/lib/vtls/openssl.c
+++ b/lib/vtls/openssl.c
@@ -18,6 +18,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 
 /*
diff --git a/lib/vtls/openssl.h b/lib/vtls/openssl.h
index 0a7536ea3..cb47f4ea8 100644
--- a/lib/vtls/openssl.h
+++ b/lib/vtls/openssl.h
@@ -20,6 +20,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 
 #include "curl_setup.h"
diff --git a/lib/vtls/rustls.c b/lib/vtls/rustls.c
index 16970b7c3..be4af9850 100644
--- a/lib/vtls/rustls.c
+++ b/lib/vtls/rustls.c
@@ -19,6 +19,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 #include "curl_setup.h"
 
diff --git a/lib/vtls/rustls.h b/lib/vtls/rustls.h
index 056211dd8..6b393dd63 100644
--- a/lib/vtls/rustls.h
+++ b/lib/vtls/rustls.h
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 2020 - 2021, Jacob Hoffman-Andrews,
+ * Copyright (C) 2020 - 2022, Jacob Hoffman-Andrews,
  * <github@hoffman-andrews.com>
  *
  * This software is licensed as described in the file COPYING, which
@@ -19,6 +19,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 #ifndef HEADER_CURL_RUSTLS_H
 #define HEADER_CURL_RUSTLS_H
diff --git a/lib/vtls/schannel.c b/lib/vtls/schannel.c
index dfec66d51..7e4228582 100644
--- a/lib/vtls/schannel.c
+++ b/lib/vtls/schannel.c
@@ -20,6 +20,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 
 /*
diff --git a/lib/vtls/schannel.h b/lib/vtls/schannel.h
index da6070277..49b78c752 100644
--- a/lib/vtls/schannel.h
+++ b/lib/vtls/schannel.h
@@ -21,6 +21,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 #include "curl_setup.h"
 
diff --git a/lib/vtls/schannel_verify.c b/lib/vtls/schannel_verify.c
index 4dc2d14e5..1ac1d3eaf 100644
--- a/lib/vtls/schannel_verify.c
+++ b/lib/vtls/schannel_verify.c
@@ -20,6 +20,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 
 /*
diff --git a/lib/vtls/sectransp.c b/lib/vtls/sectransp.c
index f0f457a5a..a18ca4ee9 100644
--- a/lib/vtls/sectransp.c
+++ b/lib/vtls/sectransp.c
@@ -19,6 +19,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 
 /*
diff --git a/lib/vtls/sectransp.h b/lib/vtls/sectransp.h
index 0febd6613..2d53b7c48 100644
--- a/lib/vtls/sectransp.h
+++ b/lib/vtls/sectransp.h
@@ -8,7 +8,7 @@
  *                             \___|\___/|_| \_\_____|
  *
  * Copyright (C) 2012 - 2014, Nick Zitzmann, <nickzman@gmail.com>.
- * Copyright (C) 2012 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 2012 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -21,6 +21,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 #include "curl_setup.h"
 
diff --git a/lib/vtls/vtls.c b/lib/vtls/vtls.c
index a692d5e7c..aa3dda3d2 100644
--- a/lib/vtls/vtls.c
+++ b/lib/vtls/vtls.c
@@ -18,6 +18,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 
 /* This file is for implementing all "generic" SSL functions that all libcurl
diff --git a/lib/vtls/vtls.h b/lib/vtls/vtls.h
index 6bd1e0dcd..08c7ac31d 100644
--- a/lib/vtls/vtls.h
+++ b/lib/vtls/vtls.h
@@ -20,6 +20,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 #include "curl_setup.h"
 
diff --git a/lib/vtls/wolfssl.c b/lib/vtls/wolfssl.c
index a8b6aa17d..50cdb4abf 100644
--- a/lib/vtls/wolfssl.c
+++ b/lib/vtls/wolfssl.c
@@ -18,6 +18,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 
 /*
diff --git a/lib/vtls/wolfssl.h b/lib/vtls/wolfssl.h
index d411e6913..b2e7c3fde 100644
--- a/lib/vtls/wolfssl.h
+++ b/lib/vtls/wolfssl.h
@@ -7,7 +7,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -20,6 +20,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 #include "curl_setup.h"
 
diff --git a/lib/vtls/x509asn1.c b/lib/vtls/x509asn1.c
index d6ee51250..d5661b097 100644
--- a/lib/vtls/x509asn1.c
+++ b/lib/vtls/x509asn1.c
@@ -18,6 +18,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 
 #include "curl_setup.h"
diff --git a/lib/vtls/x509asn1.h b/lib/vtls/x509asn1.h
index db7df0ef1..a18fa1153 100644
--- a/lib/vtls/x509asn1.h
+++ b/lib/vtls/x509asn1.h
@@ -21,6 +21,8 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
+ * SPDX-License-Identifier: curl
+ *
  ***************************************************************************/
 
 #include "curl_setup.h"