Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 50 insertions, 0 deletions

diff --git a/third_party/libwebrtc/webrtc/rtc_base/openssldigest.h b/third_party/libwebrtc/webrtc/rtc_base/openssldigest.h
new file mode 100644
index 0000000000..d796665675
--- /dev/null
+++ b/third_party/libwebrtc/webrtc/rtc_base/openssldigest.h
@@ -0,0 +1,50 @@
+/*
+ *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef RTC_BASE_OPENSSLDIGEST_H_
+#define RTC_BASE_OPENSSLDIGEST_H_
+
+#include <openssl/evp.h>
+
+#include "rtc_base/messagedigest.h"
+
+namespace rtc {
+
+// An implementation of the digest class that uses OpenSSL.
+class OpenSSLDigest : public MessageDigest {
+ public:
+  // Creates an OpenSSLDigest with |algorithm| as the hash algorithm.
+  explicit OpenSSLDigest(const std::string& algorithm);
+  ~OpenSSLDigest() override;
+  // Returns the digest output size (e.g. 16 bytes for MD5).
+  size_t Size() const override;
+  // Updates the digest with |len| bytes from |buf|.
+  void Update(const void* buf, size_t len) override;
+  // Outputs the digest value to |buf| with length |len|.
+  size_t Finish(void* buf, size_t len) override;
+
+  // Helper function to look up a digest's EVP by name.
+  static bool GetDigestEVP(const std::string &algorithm,
+                           const EVP_MD** md);
+  // Helper function to look up a digest's name by EVP.
+  static bool GetDigestName(const EVP_MD* md,
+                            std::string* algorithm);
+  // Helper function to get the length of a digest.
+  static bool GetDigestSize(const std::string &algorithm,
+                            size_t* len);
+
+ private:
+  EVP_MD_CTX ctx_;
+  const EVP_MD* md_;
+};
+
+}  // namespace rtc
+
+#endif  // RTC_BASE_OPENSSLDIGEST_H_