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/*
* Copyright (C) 2000, 2001 Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
* DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
* INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: genrandom.c,v 1.8.2.1 2003/08/05 00:42:54 marka Exp $ */
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int
main(int argc, char **argv) {
unsigned int bytes;
unsigned int k;
char *endp;
FILE *fp;
if (argc != 3) {
printf("usage: genrandom k file\n");
exit(1);
}
k = strtoul(argv[1], &endp, 10);
if (*endp != 0) {
printf("usage: genrandom k file\n");
exit(1);
}
bytes = k << 10;
fp = fopen(argv[2], "w");
if (fp == NULL) {
printf("failed to open %s\n", argv[2]);
exit(1);
}
#ifndef HAVE_ARC4RANDOM
srand(0x12345678);
#endif
while (bytes > 0) {
#ifndef HAVE_ARC4RANDOM
unsigned short int x = (rand() & 0xFFFF);
#else
unsigned short int x = (arc4random() & 0xFFFF);
#endif
unsigned char c = x & 0xFF;
if (putc(c, fp) == EOF) {
printf("error writing to file\n");
exit(1);
}
c = x >> 8;
if (putc(c, fp) == EOF) {
printf("error writing to file\n");
exit(1);
}
bytes -= 2;
}
fclose(fp);
return (0);
}
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