From 69176c8602e29f4bd30457240374800d88dc39ed Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sat, 14 Apr 2018 22:39:34 +0200
Subject: [PATCH] rsa-sign: add support for libressl

---
 lib/rsa/rsa-sign.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

--- a/lib/rsa/rsa-sign.c
+++ b/lib/rsa/rsa-sign.c
@@ -21,7 +21,8 @@
 #define HAVE_ERR_REMOVE_THREAD_STATE
 #endif
 
-#if OPENSSL_VERSION_NUMBER < 0x10100000L
+#if OPENSSL_VERSION_NUMBER < 0x10100000L || \
+    (defined(LIBRESSL_VERSION_NUMBER) && LIBRESSL_VERSION_NUMBER < 0x2070000fL)
 static void RSA_get0_key(const RSA *r,
                  const BIGNUM **n, const BIGNUM **e, const BIGNUM **d)
 {
@@ -300,7 +301,8 @@ static int rsa_init(void)
 {
 	int ret;
 
-#if OPENSSL_VERSION_NUMBER < 0x10100000L
+#if OPENSSL_VERSION_NUMBER < 0x10100000L || \
+    (defined(LIBRESSL_VERSION_NUMBER) && LIBRESSL_VERSION_NUMBER < 0x2070000fL)
 	ret = SSL_library_init();
 #else
 	ret = OPENSSL_init_ssl(0, NULL);
@@ -309,7 +311,7 @@ static int rsa_init(void)
 		fprintf(stderr, "Failure to init SSL library\n");
 		return -1;
 	}
-#if OPENSSL_VERSION_NUMBER < 0x10100000L
+#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
 	SSL_load_error_strings();
 
 	OpenSSL_add_all_algorithms();
@@ -355,7 +357,7 @@ err_set_rsa:
 err_engine_init:
 	ENGINE_free(e);
 err_engine_by_id:
-#if OPENSSL_VERSION_NUMBER < 0x10100000L
+#if OPENSSL_VERSION_NUMBER < 0x10100000L ||  defined(LIBRESSL_VERSION_NUMBER)
 	ENGINE_cleanup();
 #endif
 	return ret;
@@ -363,7 +365,7 @@ err_engine_by_id:
 
 static void rsa_remove(void)
 {
-#if OPENSSL_VERSION_NUMBER < 0x10100000L
+#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
 	CRYPTO_cleanup_all_ex_data();
 	ERR_free_strings();
 #ifdef HAVE_ERR_REMOVE_THREAD_STATE
@@ -433,7 +435,8 @@ static int rsa_sign_with_key(RSA *rsa, s
 		ret = rsa_err("Could not obtain signature");
 		goto err_sign;
 	}
-	#if OPENSSL_VERSION_NUMBER < 0x10100000L
+	#if OPENSSL_VERSION_NUMBER < 0x10100000L || \
+	    defined(LIBRESSL_VERSION_NUMBER)
 		EVP_MD_CTX_cleanup(context);
 	#else
 		EVP_MD_CTX_reset(context);