michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /*
michael@0: ** File: rngseed.c
michael@0: ** Description: 
michael@0: ** Test NSPR's Random Number Seed generator
michael@0: **
michael@0: ** Initial test: Just make sure it outputs some data.
michael@0: ** 
michael@0: ** ... more? ... check some iterations to ensure it is random (no dupes)
michael@0: ** ... more? ... histogram distribution of random numbers
michael@0: */
michael@0: 
michael@0: #include "plgetopt.h"
michael@0: #include "nspr.h" 
michael@0: #include "prrng.h"
michael@0: #include <stdio.h>
michael@0: #include <stdlib.h>
michael@0: #include <string.h>
michael@0: 
michael@0: /*
michael@0: ** Test harness infrastructure
michael@0: */
michael@0: PRLogModuleInfo *lm;
michael@0: PRLogModuleLevel msgLevel = PR_LOG_NONE;
michael@0: PRIntn  debug = 0;
michael@0: PRUint32  failed_already = 0;
michael@0: /* end Test harness infrastructure */
michael@0: 
michael@0: PRIntn  optRandCount = 30;
michael@0: char    buf[40];
michael@0: PRSize  bufSize = sizeof(buf);
michael@0: PRSize  rSize;
michael@0: PRIntn  i;
michael@0: 
michael@0: /*
michael@0: ** Emit help text for this test
michael@0: */
michael@0: static void Help( void )
michael@0: {
michael@0:     printf("Template: Help(): display your help message(s) here");
michael@0:     exit(1);
michael@0: } /* end Help() */
michael@0: 
michael@0: static void PrintRand( void *buf, PRIntn size )
michael@0: {
michael@0:     PRUint32 *rp = buf;
michael@0:     PRIntn   i;
michael@0: 
michael@0:     printf("%4.4d--\n", size );
michael@0:     while (size > 0 ) {
michael@0:         switch( size )  {
michael@0:             case 1 :
michael@0:                 printf("%2.2X\n", *(rp++) );
michael@0:                 size -= 4;    
michael@0:                 break;
michael@0:             case 2 :
michael@0:                 printf("%4.4X\n", *(rp++) );
michael@0:                 size -= 4;    
michael@0:                 break;
michael@0:             case 3 :
michael@0:                 printf("%6.6X\n", *(rp++) );
michael@0:                 size -= 4;    
michael@0:                 break;
michael@0:             default:
michael@0:                 while ( size >= 4) {
michael@0:                     PRIntn i = 3;
michael@0:                     do {
michael@0:                         printf("%8.8X ", *(rp++) );
michael@0:                         size -= 4;    
michael@0:                     } while( i-- );
michael@0:                     i = 3;
michael@0:                     printf("\n");
michael@0:                 }
michael@0:                 break;
michael@0:         } /* end switch() */
michael@0:     } /* end while() */
michael@0: } /* end PrintRand() */
michael@0: 
michael@0: 
michael@0: int main(int argc, char **argv)
michael@0: {
michael@0:     {
michael@0:         /*
michael@0:         ** Get command line options
michael@0:         */
michael@0:         PLOptStatus os;
michael@0:         PLOptState *opt = PL_CreateOptState(argc, argv, "hdv");
michael@0: 
michael@0: 	    while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
michael@0:         {
michael@0: 		    if (PL_OPT_BAD == os) continue;
michael@0:             switch (opt->option)
michael@0:             {
michael@0:             case 'd':  /* debug */
michael@0:                 debug = 1;
michael@0: 			    msgLevel = PR_LOG_ERROR;
michael@0:                 break;
michael@0:             case 'v':  /* verbose mode */
michael@0: 			    msgLevel = PR_LOG_DEBUG;
michael@0:                 break;
michael@0:             case 'h':  /* help message */
michael@0: 			    Help();
michael@0:                 break;
michael@0:              default:
michael@0:                 break;
michael@0:             }
michael@0:         }
michael@0: 	    PL_DestroyOptState(opt);
michael@0:     }
michael@0: 
michael@0:     lm = PR_NewLogModule("Test");       /* Initialize logging */
michael@0:     for ( i = 0; i < optRandCount ; i++ ) {
michael@0:         memset( buf, 0, bufSize );
michael@0:         rSize = PR_GetRandomNoise( buf, bufSize );
michael@0:         if (!rSize) {
michael@0:             fprintf(stderr, "Not implemented\n" );
michael@0:             failed_already = PR_TRUE;
michael@0:             break;
michael@0:         }
michael@0:         if (debug) PrintRand( buf, rSize );
michael@0:     }
michael@0: 
michael@0:     if (debug) printf("%s\n", (failed_already)? "FAIL" : "PASS");
michael@0:     return( (failed_already == PR_TRUE )? 1 : 0 );
michael@0: }  /* main() */
michael@0: /* end template.c */
michael@0: