Move lib into src

1 files changed, 108 insertions, 0 deletions

diff --git a/src/lib/algo_base/scan_name.h b/src/lib/algo_base/scan_name.h
new file mode 100644
index 000000000..f4c4b46e7
--- /dev/null
+++ b/src/lib/algo_base/scan_name.h
@@ -0,0 +1,108 @@
+/*
+* SCAN Name Abstraction
+* (C) 2008 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#ifndef BOTAN_SCAN_NAME_H__
+#define BOTAN_SCAN_NAME_H__
+
+#include <botan/types.h>
+#include <string>
+#include <vector>
+#include <mutex>
+#include <map>
+
+namespace Botan {
+
+/**
+A class encapsulating a SCAN name (similar to JCE conventions)
+http://www.users.zetnet.co.uk/hopwood/crypto/scan/
+*/
+class BOTAN_DLL SCAN_Name
+   {
+   public:
+      /**
+      * @param algo_spec A SCAN-format name
+      */
+      SCAN_Name(std::string algo_spec);
+
+      /**
+      * @return original input string
+      */
+      std::string as_string() const { return orig_algo_spec; }
+
+      /**
+      * @return algorithm name
+      */
+      std::string algo_name() const { return alg_name; }
+
+      /**
+      * @return algorithm name plus any arguments
+      */
+      std::string algo_name_and_args() const;
+
+      /**
+      * @return number of arguments
+      */
+      size_t arg_count() const { return 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 (mode_info.size() >= 1) ? mode_info[0] : ""; }
+
+      /**
+      * @return cipher mode padding (if any)
+      */
+      std::string cipher_mode_pad() const
+         { return (mode_info.size() >= 2) ? mode_info[1] : ""; }
+
+      static void add_alias(const std::string& alias, const std::string& basename);
+
+      static std::string deref_alias(const std::string& alias);
+
+      static void set_default_aliases();
+   private:
+      static std::mutex s_alias_map_mutex;
+      static std::map<std::string, std::string> s_alias_map;
+
+      std::string orig_algo_spec;
+      std::string alg_name;
+      std::vector<std::string> args;
+      std::vector<std::string> mode_info;
+   };
+
+}
+
+#endif