nucleus/tools/simple_utilities/create_guid.cpp

   1 /*****************************************************************************\
   2 *                                                                             *
   3 *  Name   : create_guid                                                       *
   4 *  Author : Chris Koeritz                                                     *
   5 *                                                                             *
   6 *  Purpose:                                                                   *
   7 *                                                                             *
   8 *    This program generates a globally unique identifier using the operating  *
   9 *  system's support.  The resulting id can be used to tag items that must be  *
  10 *  uniquely named.                                                            *
  11 *                                                                             *
  12 *******************************************************************************
  13 * Copyright (c) 2006-$now By Author.  This program is free software; you can  *
  14 * redistribute it and/or modify it under the terms of the GNU General Public  *
  15 * License as published by the Free Software Foundation; either version 2 of   *
  16 * the License or (at your option) any later version.  This is online at:      *
  17 *     http://www.fsf.org/copyleft/gpl.html                                    *
  18 * Please send any updates to: fred@gruntose.com                               *
  19 \*****************************************************************************/
  20
  21 #include <application/application_shell.h>
  22 #include <application/hoople_main.h>
  23 #include <application/windoze_helper.h>
  24 #include <basis/astring.h>
  25 #include <loggers/console_logger.h>
  26 #include <mathematics/chaos.h>
  27 #include <structures/static_memory_gremlin.h>
  28 #include <textual/string_manipulation.h>
  29
  30 #ifdef _MSC_VER
  31   #include <comdef.h>
  32 #endif
  33
  34 using namespace application;
  35 using namespace basis;
  36 using namespace loggers;
  37 using namespace mathematics;
  38 using namespace structures;
  39 using namespace textual;
  40
  41 #define BASE_LOG(to_print) program_wide_logger::get().log(to_print, ALWAYS_PRINT)
  42
  43 // this is an example GUID in the DCE format:
  44 //
  45 //    {12345678-1234-1234-1234-123456789012}
  46 //
  47 // each position can be a hexadecimal digit, ranging from 0 to F.
  48 // the full size is measured as 32 nibbles or 16 bytes or 128 bits.
  49
  50 class create_guid : public application_shell
  51 {
  52 public:
  53   create_guid() : application_shell() {}
  54   DEFINE_CLASS_NAME("create_guid");
  55   int execute();
  56 };
  57
  58 int create_guid::execute()
  59 {
  60   FUNCDEF("execute");
  61   SETUP_CONSOLE_LOGGER;
  62 #if defined(__UNIX__) || defined(__GNU_WINDOWS__)
  63
  64 // this is completely bogus for the time being.  it just produces a random
  65 // number rather than a guid.
  66   #define add_random \
  67     faux_guid += astring(string_manipulation::hex_to_char \
  68         (randomizer().inclusive(0, 0xf)), 1)
  69
  70   astring faux_guid("{");
  71   for (int i = 0; i < 8; i++) add_random;
  72   faux_guid += "-";
  73   for (int j = 0; j < 3; j++) {
  74     for (int i = 0; i < 4; i++) add_random;
  75     faux_guid += "-";
  76   }
  77   for (int i = 0; i < 8; i++) add_random;
  78   faux_guid += "}";
  79   BASE_LOG(faux_guid.lower());
  80 #elif defined (_MSC_VER)
  81   GUID guid;
  82   CoCreateGuid(&guid);
  83   const int BUFFER_SIZE = 1024;
  84   LPOLESTR wide_buffer = new WCHAR[BUFFER_SIZE + 4];
  85   StringFromGUID2(guid, wide_buffer, BUFFER_SIZE);
  86   const int BYTE_BUFFER_SIZE = BUFFER_SIZE * 2 + 4;
  87   char buffer[BYTE_BUFFER_SIZE];
  88   WideCharToMultiByte(CP_UTF8, 0, wide_buffer, -1, buffer, BYTE_BUFFER_SIZE,
  89       NULL, NULL);
  90   astring guid_text = buffer;
  91   delete [] wide_buffer;
  92   BASE_LOG(guid_text);
  93 #else
  94   #error unknown operating system; no support for guids.
  95 #endif
  96
  97   return 0;
  98 }
  99
 100 HOOPLE_MAIN(create_guid, )
 101
 102 #ifdef __BUILD_STATIC_APPLICATION__
 103   // static dependencies found by buildor_gen_deps.sh:
 104   #include <application/application_shell.cpp>
 105   #include <application/command_line.cpp>
 106   #include <application/windoze_helper.cpp>
 107   #include <basis/astring.cpp>
 108   #include <basis/common_outcomes.cpp>
 109   #include <basis/environment.cpp>
 110   #include <basis/guards.cpp>
 111   #include <basis/mutex.cpp>
 112   #include <basis/utf_conversion.cpp>
 113   #include <configuration/application_configuration.cpp>
 114   #include <configuration/configurator.cpp>
 115   #include <configuration/ini_configurator.cpp>
 116   #include <configuration/ini_parser.cpp>
 117   #include <configuration/table_configurator.cpp>
 118   #include <configuration/variable_tokenizer.cpp>
 119   #include <filesystem/byte_filer.cpp>
 120   #include <filesystem/directory.cpp>
 121   #include <filesystem/filename.cpp>
 122   #include <loggers/combo_logger.cpp>
 123   #include <loggers/console_logger.cpp>
 124   #include <loggers/critical_events.cpp>
 125   #include <loggers/file_logger.cpp>
 126   #include <loggers/program_wide_logger.cpp>
 127   #include <structures/bit_vector.cpp>
 128   #include <structures/checksums.cpp>
 129   #include <structures/object_packers.cpp>
 130   #include <structures/static_memory_gremlin.cpp>
 131   #include <structures/string_hasher.cpp>
 132   #include <structures/string_table.cpp>
 133   #include <structures/version_record.cpp>
 134   #include <textual/byte_formatter.cpp>
 135   #include <textual/parser_bits.cpp>
 136   #include <textual/string_manipulation.cpp>
 137   #include <timely/earth_time.cpp>
 138   #include <timely/time_stamp.cpp>
 139 #endif // __BUILD_STATIC_APPLICATION__
 140