[PATCH 1/2] libcrypto-compat: add extra functions

[Rosen Penev <rosenp@xxxxxxxxx>]

Changed the define to compare OPENSSL_API_COMPAT instead of version as
OpenSSL can be compiled in different ways. One is to disable all
deprecated APIs.

Added extra functions. The next commit will switch to them.

Signed-off-by: Rosen Penev <rosenp@xxxxxxxxx>
---
 src/libcrypto-compat.c | 14 ++++++++++++++
 src/libcrypto-compat.h |  8 +++++++-
 2 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/src/libcrypto-compat.c b/src/libcrypto-compat.c
index 048d1781..3604763f 100644
--- a/src/libcrypto-compat.c
+++ b/src/libcrypto-compat.c
@@ -280,6 +280,11 @@ void EVP_MD_CTX_free(EVP_MD_CTX *ctx)
     OPENSSL_free(ctx);
 }
 
+int EVP_CIPHER_CTX_reset(EVP_CIPHER_CTX *ctx)
+{
+	EVP_CIPHER_CTX_init(ctx);
+}
+
 HMAC_CTX *HMAC_CTX_new(void)
 {
     HMAC_CTX *ctx = OPENSSL_zalloc(sizeof(HMAC_CTX));
@@ -394,3 +399,12 @@ int DH_set0_key(DH *dh, BIGNUM *pub_key, BIGNUM *priv_key)
     }
     return 1;
 }
+
+const char *OpenSSL_version(int type)
+{
+    return SSLeay_version(type);
+}
+unsigned long OpenSSL_version_num(void)
+{
+    return SSLeay();
+}
diff --git a/src/libcrypto-compat.h b/src/libcrypto-compat.h
index bda0473e..44e14801 100644
--- a/src/libcrypto-compat.h
+++ b/src/libcrypto-compat.h
@@ -2,7 +2,7 @@
 #define LIBCRYPTO_COMPAT_H
 
 #include <openssl/opensslv.h>
-#if OPENSSL_VERSION_NUMBER < 0x10100000L
+#if OPENSSL_API_COMPAT < 0x10100000L
 
 #include <openssl/rsa.h>
 #include <openssl/dsa.h>
@@ -34,6 +34,8 @@ int EVP_MD_CTX_reset(EVP_MD_CTX *ctx);
 EVP_MD_CTX *EVP_MD_CTX_new(void);
 void EVP_MD_CTX_free(EVP_MD_CTX *ctx);
 
+int EVP_CIPHER_CTX_reset(EVP_CIPHER_CTX *ctx);
+
 HMAC_CTX *HMAC_CTX_new(void);
 int HMAC_CTX_reset(HMAC_CTX *ctx);
 void HMAC_CTX_free(HMAC_CTX *ctx);
@@ -44,6 +46,10 @@ int DH_set0_pqg(DH *dh, BIGNUM *p, BIGNUM *q, BIGNUM *g);
 void DH_get0_key(const DH *dh,
                  const BIGNUM **pub_key, const BIGNUM **priv_key);
 int DH_set0_key(DH *dh, BIGNUM *pub_key, BIGNUM *priv_key);
+
+const char *OpenSSL_version(int type);
+unsigned long OpenSSL_version_num(void);
+
 #endif /* OPENSSL_VERSION_NUMBER */
 
 #endif /* LIBCRYPTO_COMPAT_H */
-- 
2.24.1