workbench/c/UUIDGen.c

   1 /*
   2     Copyright © 1995-2001, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: Generate UUIDs
   6     Lang: English
   7 */
   8
   9 /******************************************************************************
  10
  11     NAME
  12
  13         UUIDGen
  14
  15     SYNOPSIS
  16
  17         RANDOM/S, AMOUNT/N
  18
  19     LOCATION
  20
  21         C:
  22
  23     FUNCTION
  24
  25         Generates one or more universally unique identifiers. They may be either
  26         time-based or random. Please note that the quality of random generated
  27         uuid's may be poor, due to the lack of high-quality noise generators on AROS.
  28
  29     INPUTS
  30
  31         RANDOM --  Generate randob-based UUID instead of time based
  32         AMOUNT --  Amount of UUID's to generate. Defaults to 1.
  33
  34     RESULT
  35
  36     NOTES
  37
  38     EXAMPLE
  39
  40     BUGS
  41
  42     SEE ALSO
  43
  44     INTERNALS
  45
  46     HISTORY
  47
  48 ******************************************************************************/
  49
  50 #include <aros/debug.h>
  51 #include <proto/exec.h>
  52 #include <proto/dos.h>
  53 #include <proto/uuid.h>
  54 #include <libraries/uuid.h>
  55
  56 #define  ARG_COUNT  2    /* Number of ReadArgs() arguments */
  57
  58 int __nocommandline;
  59
  60 int main(void)
  61 {
  62     ULONG amount = 1;
  63     /* Array filled by ReadArgs() call */
  64     IPTR args[ARG_COUNT] = {0, 0};
  65
  66     struct RDArgs *rda;           /* ReadArgs standard struct */
  67
  68     if((rda = ReadArgs("RANDOM/S,AMOUNT/N", args, NULL)) != NULL)
  69     {
  70         BOOL random = (BOOL)args[0];    /* Random-based UUID? */
  71
  72         if (args[1])
  73             amount = *(ULONG*)args[1];  /* Amount of uuid's was given. use it */
  74
  75         struct Library *UUIDBase = OpenLibrary("uuid.library", 0);
  76
  77         if (UUIDBase)
  78         {
  79             char uuidstr[UUID_STRLEN+1];
  80             uuid_t uuid;
  81             uuidstr[UUID_STRLEN] = 0;
  82
  83             while(amount--)
  84             {
  85                 /* Generate the uuid identifier */
  86                 if (random)
  87                     UUID_Generate(UUID_TYPE_DCE_RANDOM, &uuid);
  88                 else
  89                     UUID_Generate(UUID_TYPE_DCE_TIME, &uuid);
  90
  91                 /* unparse it into human-readable format */
  92                 UUID_Unparse(&uuid, uuidstr);
  93
  94                 Printf("%s\n", uuidstr);
  95             }
  96
  97             CloseLibrary(UUIDBase);
  98         }
  99     }
 100
 101     return RETURN_OK;
 102 }