Switch ssl_privkey to C++.

In the process, merge the old canary function back in.

Bug: 132
Change-Id: Ib455320ecea67c839d0b4ac3882669d24f832b74
Reviewed-on: https://boringssl-review.googlesource.com/17765
Reviewed-by: Steven Valdez <svaldez@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
diff --git a/ssl/CMakeLists.txt b/ssl/CMakeLists.txt
index d825827..d2fe849 100644
--- a/ssl/CMakeLists.txt
+++ b/ssl/CMakeLists.txt
@@ -24,8 +24,7 @@
   ssl_ecdh.cc
   ssl_file.cc
   ssl_lib.cc
-  ssl_privkey.c
-  ssl_privkey_cc.cc
+  ssl_privkey.cc
   ssl_session.c
   ssl_stat.c
   ssl_transcript.c
diff --git a/ssl/ssl_privkey.c b/ssl/ssl_privkey.cc
similarity index 97%
rename from ssl/ssl_privkey.c
rename to ssl/ssl_privkey.cc
index 257d03e..c5994c9 100644
--- a/ssl/ssl_privkey.c
+++ b/ssl/ssl_privkey.cc
@@ -119,6 +119,16 @@
   return ret;
 }
 
+int SSL_use_RSAPrivateKey_ASN1(SSL *ssl, const uint8_t *der, size_t der_len) {
+  bssl::UniquePtr<RSA> rsa(RSA_private_key_from_bytes(der, der_len));
+  if (!rsa) {
+    OPENSSL_PUT_ERROR(SSL, ERR_R_ASN1_LIB);
+    return 0;
+  }
+
+  return SSL_use_RSAPrivateKey(ssl, rsa.get());
+}
+
 int SSL_use_PrivateKey(SSL *ssl, EVP_PKEY *pkey) {
   if (pkey == NULL) {
     OPENSSL_PUT_ERROR(SSL, ERR_R_PASSED_NULL_PARAMETER);
@@ -228,7 +238,7 @@
   OPENSSL_free(*out_prefs);
 
   *out_num_prefs = 0;
-  *out_prefs = BUF_memdup(prefs, num_prefs * sizeof(prefs[0]));
+  *out_prefs = (uint16_t *)BUF_memdup(prefs, num_prefs * sizeof(prefs[0]));
   if (*out_prefs == NULL) {
     OPENSSL_PUT_ERROR(SSL, ERR_R_MALLOC_FAILURE);
     return 0;
@@ -265,7 +275,8 @@
                          digest_list_conversion_cannot_overflow);
 
   ssl->cert->num_sigalgs = 0;
-  ssl->cert->sigalgs = OPENSSL_malloc(sizeof(uint16_t) * 2 * num_digests);
+  ssl->cert->sigalgs =
+      (uint16_t *)OPENSSL_malloc(sizeof(uint16_t) * 2 * num_digests);
   if (ssl->cert->sigalgs == NULL) {
     OPENSSL_PUT_ERROR(SSL, ERR_R_MALLOC_FAILURE);
     return 0;
diff --git a/ssl/ssl_privkey_cc.cc b/ssl/ssl_privkey_cc.cc
deleted file mode 100644
index 653308c..0000000
--- a/ssl/ssl_privkey_cc.cc
+++ /dev/null
@@ -1,76 +0,0 @@
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to.  The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *    "This product includes cryptographic software written by
- *     Eric Young (eay@cryptsoft.com)"
- *    The word 'cryptographic' can be left out if the rouines from the library
- *    being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- *    the apps directory (application code) you must include an acknowledgement:
- *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed.  i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.] */
-
-#include <openssl/ssl.h>
-
-#include <openssl/err.h>
-#include <openssl/rsa.h>
-
-
-/* This function has been converted to C++ to check if all of libssl's
- * consumers' toolchains are capable of handling C++11. Once all problems in
- * consumer toolchains are found and fixed, we will convert the rest of
- * libssl. */
-
-int SSL_use_RSAPrivateKey_ASN1(SSL *ssl, const uint8_t *der, size_t der_len) {
-  bssl::UniquePtr<RSA> rsa(RSA_private_key_from_bytes(der, der_len));
-  if (!rsa) {
-    OPENSSL_PUT_ERROR(SSL, ERR_R_ASN1_LIB);
-    return 0;
-  }
-
-  return SSL_use_RSAPrivateKey(ssl, rsa.get());
-}