From 94c8816ecdb5af8243defe541f9cf21944dd2eea Mon Sep 17 00:00:00 2001
From: Rosen Penev <rosenp@gmail.com>
Date: Sat, 20 Feb 2021 14:19:52 -0800
Subject: [PATCH] Fix compilation with newer wolfSSL (#499)

Patch taken from OpenWrt.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
---
 configure.ac | 2 +-
 src/ippool.c | 1 +
 src/md5.h    | 1 -
 src/ssl.c    | 2 +-
 src/ssl.h    | 2 ++
 5 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/configure.ac b/configure.ac
index ef802be5..5a5600db 100644
--- a/configure.ac
+++ b/configure.ac
@@ -397,7 +397,7 @@ AC_ARG_WITH([cyassl],
  [AS_HELP_STRING([--with-cyassl], [enable support for cyassl])],[],[with_cyassl=no])
 
 AS_IF([test x"$with_cyassl" != xno],
-  [AC_CHECK_LIB([cyassl], [CyaSSL_Init],
+  [AC_CHECK_LIB([cyassl], [wolfSSL_Init],
               [AC_SUBST([LIBSSL], ["-lcyassl"])
                AC_DEFINE([HAVE_CYASSL], [1],
                          [Define if you have cyassl])
diff --git a/src/ippool.c b/src/ippool.c
index 142b02bb..2006b7c0 100644
--- a/src/ippool.c
+++ b/src/ippool.c
@@ -35,6 +35,7 @@ int ippool_print(int fd, struct ippool_t *this) {
   char * sep = "-- %-15s ------------------------------------------------------------\n";
 
 #define ERR 0
+#undef USED /* defined in <wolfssl/wolfcrypt/integer.h> */
 #define USED 1
 #define FREE 2
 #define LIST 3
diff --git a/src/md5.h b/src/md5.h
index 1385fdc8..936af49b 100644
--- a/src/md5.h
+++ b/src/md5.h
@@ -35,7 +35,6 @@
 #define MD5Update MD5_Update
 #define MD5Final MD5_Final
 
-typedef struct CYASSL_MD5_CTX MD5_CTX;
 #else
 
 struct MD5Context {
diff --git a/src/ssl.c b/src/ssl.c
index a69a2f77..475c8327 100644
--- a/src/ssl.c
+++ b/src/ssl.c
@@ -131,7 +131,7 @@ _openssl_env_init(openssl_env *env, char *engine, int server) {
    */
   const long options = SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 | SSL_OP_NO_COMPRESSION;
   env->meth = SSLv23_method();
-  env->ctx = SSL_CTX_new(env->meth);
+  env->ctx = SSL_CTX_new((void *)env->meth);
   SSL_CTX_set_options(env->ctx, options);
   if (_options.sslciphers) {
     SSL_CTX_set_cipher_list(env->ctx, _options.sslciphers);
diff --git a/src/ssl.h b/src/ssl.h
index d401cb5f..55875e58 100644
--- a/src/ssl.h
+++ b/src/ssl.h
@@ -48,6 +48,8 @@ typedef struct {
 #include <time.h>
 #include <string.h>
 
+#define OPENSSL_NO_ENGINE
+#include <cyassl/options.h>
 #include <cyassl/ssl.h>
 #include <cyassl/openssl/bio.h>
 #include <cyassl/openssl/crypto.h>