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/*
* Version Information
* (C) 1999-2013,2015 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include <botan/version.h>
#include <sstream>

namespace Botan {

/*
  These are intentionally compiled rather than inlined, so an
  application running against a shared library can test the true
  version they are running against.
*/

#define QUOTE(name) #name
#define STR(macro) QUOTE(macro)

const char* short_version_cstr()
   {
   return STR(BOTAN_VERSION_MAJOR) "."
          STR(BOTAN_VERSION_MINOR) "."
          STR(BOTAN_VERSION_PATCH);
   }

const char* version_cstr()
   {

   /*
   It is intentional that this string is a compile-time constant;
   it makes it much easier to find in binaries.
   */

   return "Botan " STR(BOTAN_VERSION_MAJOR) "."
                   STR(BOTAN_VERSION_MINOR) "."
                   STR(BOTAN_VERSION_PATCH) " ("
#if defined(BOTAN_UNSAFE_FUZZER_MODE)
                   "UNSAFE FUZZER MODE BUILD "
#endif
                   BOTAN_VERSION_RELEASE_TYPE
#if (BOTAN_VERSION_DATESTAMP != 0)
                   ", dated " STR(BOTAN_VERSION_DATESTAMP)
#endif
                   ", revision " BOTAN_VERSION_VC_REVISION
                   ", distribution " BOTAN_DISTRIBUTION_INFO ")";
   }

#undef STR
#undef QUOTE

/*
* Return the version as a string
*/
std::string version_string()
   {
   return std::string(version_cstr());
   }

std::string short_version_string()
   {
   return std::string(short_version_cstr());
   }

uint32_t version_datestamp() { return BOTAN_VERSION_DATESTAMP; }

/*
* Return parts of the version as integers
*/
uint32_t version_major() { return BOTAN_VERSION_MAJOR; }
uint32_t version_minor() { return BOTAN_VERSION_MINOR; }
uint32_t version_patch() { return BOTAN_VERSION_PATCH; }

std::string runtime_version_check(uint32_t major,
                                  uint32_t minor,
                                  uint32_t patch)
   {
   if(major != version_major() || minor != version_minor() || patch != version_patch())
      {
      std::ostringstream oss;
      oss << "Warning: linked version (" << short_version_string() << ")"
          << " does not match version built against "
          << "(" << major << '.' << minor << '.' << patch << ")\n";
      return oss.str();
      }

   return "";
   }

}