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