Make internal header file names consistent

Libcrypto currently has a mess of *_lcl.h, *_locl.h, and *_local.h names
used for internal headers. Move all these headers we inherited from
OpenSSL to *_local.h, reserving the name *_internal.h for our own code.
Similarly, move dtls_locl.h and ssl_locl.h to dtls_local and ssl_local.h.
constant_time_locl.h is moved to constant_time.h since it's special.

Adjust all .c files in libcrypto, libssl and regress.

The diff is mechanical with the exception of tls13_quic.c, where
#include <ssl_locl.h> was fixed manually.

discussed with jsing,
no objection bcook

1 files changed, 3 insertions, 3 deletions

diff --git a/src/lib/libssl/ssl_pkt.c b/src/lib/libssl/ssl_pkt.c
index 4d79981484..728ac141e5 100644
--- a/src/lib/libssl/ssl_pkt.c
+++ b/src/lib/libssl/ssl_pkt.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ssl_pkt.c,v 1.64 2022/11/11 17:15:26 jsing Exp $ */
+/* $OpenBSD: ssl_pkt.c,v 1.65 2022/11/26 16:08:56 tb Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -117,8 +117,8 @@
 #include <openssl/evp.h>
 
 #include "bytestring.h"
-#include "dtls_locl.h"
-#include "ssl_locl.h"
+#include "dtls_local.h"
+#include "ssl_local.h"
 #include "tls_content.h"
 
 static int do_ssl3_write(SSL *s, int type, const unsigned char *buf,