1 files changed, 117 insertions, 0 deletions
diff --git a/src/libs/3rdparty/botan/src/lib/base/scan_name.h b/src/libs/3rdparty/botan/src/lib/base/scan_name.h
new file mode 100644
index 0000000000..8aa45f50f0
--- /dev/null
+++ b/src/libs/3rdparty/botan/src/lib/base/scan_name.h
@@ -0,0 +1,117 @@
+/*
+* SCAN Name Abstraction
+* (C) 2008,2015 Jack Lloyd
+*
+* Botan is released under the Simplified BSD License (see license.txt)
+*/
+
+#ifndef BOTAN_SCAN_NAME_H_
+#define BOTAN_SCAN_NAME_H_
+
+#include <botan/types.h>
+#include <string>
+#include <vector>
+
+namespace Botan {
+
+/**
+A class encapsulating a SCAN name (similar to JCE conventions)
+http://www.users.zetnet.co.uk/hopwood/crypto/scan/
+*/
+class BOTAN_PUBLIC_API(2,0) SCAN_Name final
+   {
+   public:
+      /**
+      * Create a SCAN_Name
+      * @param algo_spec A SCAN-format name
+      */
+      explicit SCAN_Name(const char* algo_spec);
+
+      /**
+      * Create a SCAN_Name
+      * @param algo_spec A SCAN-format name
+      */
+      explicit SCAN_Name(std::string algo_spec);
+
+      /**
+      * @return original input string
+      */
+      const std::string& as_string() const { return m_orig_algo_spec; }
+
+      /**
+      * @return algorithm name
+      */
+      const std::string& algo_name() const { return m_alg_name; }
+
+      /**
+      * @return number of arguments
+      */
+      size_t arg_count() const { return m_args.size(); }
+
+      /**
+      * @param lower is the lower bound
+      * @param upper is the upper bound
+      * @return if the number of arguments is between lower and upper
+      */
+      bool arg_count_between(size_t lower, size_t upper) const
+         { return ((arg_count() >= lower) && (arg_count() <= upper)); }
+
+      /**
+      * @param i which argument
+      * @return ith argument
+      */
+      std::string arg(size_t i) const;
+
+      /**
+      * @param i which argument
+      * @param def_value the default value
+      * @return ith argument or the default value
+      */
+      std::string arg(size_t i, const std::string& def_value) const;
+
+      /**
+      * @param i which argument
+      * @param def_value the default value
+      * @return ith argument as an integer, or the default value
+      */
+      size_t arg_as_integer(size_t i, size_t def_value) const;
+
+      /**
+      * @return cipher mode (if any)
+      */
+      std::string cipher_mode() const
+         { return (m_mode_info.size() >= 1) ? m_mode_info[0] : ""; }
+
+      /**
+      * @return cipher mode padding (if any)
+      */
+      std::string cipher_mode_pad() const
+         { return (m_mode_info.size() >= 2) ? m_mode_info[1] : ""; }
+
+   private:
+      std::string m_orig_algo_spec;
+      std::string m_alg_name;
+      std::vector<std::string> m_args;
+      std::vector<std::string> m_mode_info;
+   };
+
+// This is unrelated but it is convenient to stash it here
+template<typename T>
+std::vector<std::string> probe_providers_of(const std::string& algo_spec,
+                                            const std::vector<std::string>& possible)
+   {
+   std::vector<std::string> providers;
+   for(auto&& prov : possible)
+      {
+      std::unique_ptr<T> o(T::create(algo_spec, prov));
+      if(o)
+         {
+         providers.push_back(prov); // available
+         }
+      }
+   return providers;
+   }
+
+}
+
+#endif