From 3daf1760a18c091159338fc9077fa71bfbd726a1 Mon Sep 17 00:00:00 2001
From: Andreas Schneider <asn@cryptomilk.org>
Date: Sun, 6 Nov 2016 15:43:31 +0100
Subject: [PATCH] cmake: Use configure check for CRYPTO_ctr128_encrypt

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
---
 ConfigureChecks.cmake | 4 ++++
 config.h.cmake        | 3 +++
 src/libcrypto.c       | 6 +++---
 3 files changed, 10 insertions(+), 3 deletions(-)

Index: libssh-0.7.5/ConfigureChecks.cmake
===================================================================
--- libssh-0.7.5.orig/ConfigureChecks.cmake	2017-09-15 11:35:09.493600110 +0200
+++ libssh-0.7.5/ConfigureChecks.cmake	2017-09-15 11:35:09.505600299 +0200
@@ -95,6 +95,10 @@ if (OPENSSL_FOUND)
     set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
     set(CMAKE_REQUIRED_LIBRARIES ${OPENSSL_CRYPTO_LIBRARY})
     check_function_exists(CRYPTO_THREADID_set_callback HAVE_OPENSSL_CRYPTO_THREADID_SET_CALLBACK)
+
+    set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
+    set(CMAKE_REQUIRED_LIBRARIES ${OPENSSL_CRYPTO_LIBRARY})
+    check_function_exists(CRYPTO_ctr128_encrypt HAVE_OPENSSL_CRYPTO_CTR128_ENCRYPT)
 endif()
 
 if (CMAKE_HAVE_PTHREAD_H)
Index: libssh-0.7.5/config.h.cmake
===================================================================
--- libssh-0.7.5.orig/config.h.cmake	2017-09-15 11:35:09.493600110 +0200
+++ libssh-0.7.5/config.h.cmake	2017-09-15 11:35:09.505600299 +0200
@@ -79,6 +79,9 @@
 /* Define to 1 if you have the `CRYPTO_THREADID_set_callback' function. */
 #cmakedefine HAVE_OPENSSL_CRYPTO_THREADID_SET_CALLBACK 1
 
+/* Define to 1 if you have the `CRYPTO_ctr128_encrypt' function. */
+#cmakedefine HAVE_OPENSSL_CRYPTO_CTR128_ENCRYPT 1
+
 /* Define to 1 if you have the `snprintf' function. */
 #cmakedefine HAVE_SNPRINTF 1
 
Index: libssh-0.7.5/src/libcrypto.c
===================================================================
--- libssh-0.7.5.orig/src/libcrypto.c	2017-09-15 11:35:09.473599793 +0200
+++ libssh-0.7.5/src/libcrypto.c	2017-09-15 11:35:09.505600299 +0200
@@ -41,6 +41,8 @@
 #include <openssl/dsa.h>
 #include <openssl/rsa.h>
 #include <openssl/hmac.h>
+#include <openssl/evp.h>
+#include <openssl/modes.h>
 #include <openssl/opensslv.h>
 #include <openssl/rand.h>
 #include "libcrypto-compat.h"
@@ -458,11 +460,12 @@ static void aes_ctr128_encrypt(struct ss
    * Same for num, which is being used to store the current offset in blocksize in CTR
    * function.
    */
-# if OPENSSL_VERSION_NUMBER >= 0x10100000L
-  CRYPTO_ctr128_encrypt(in, out, len, &cipher->aes_key->key, cipher->aes_key->IV, tmp_buffer, &num, (block128_f)AES_encrypt);
-# else
+#ifdef HAVE_OPENSSL_CRYPTO_CTR128_ENCRYPT
+  CRYPTO_ctr128_encrypt(in, out, len, cipher->key, cipher->IV, tmp_buffer, &num, (block128_f)AES_encrypt);
+#else
+
   AES_ctr128_encrypt(in, out, len, cipher->key, cipher->IV, tmp_buffer, &num);
-# endif /* OPENSSL_VERSION_NUMBER >= 0x10100000L */
+#endif /* HAVE_OPENSSL_CRYPTO_CTR128_ENCRYPT */
 }
 #endif /* BROKEN_AES_CTR */
 #endif /* HAS_AES */