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This commit is contained in:
itojun 2003-08-20 13:32:33 +00:00
parent 3422a6eafe
commit 1403d9d920
1 changed files with 10 additions and 9 deletions
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19
sys/lib/libkern/arc4random.c
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@ -1,4 +1,4 @@
/* $NetBSD: arc4random.c,v 1.9 2002/10/06 13:42:36 dan Exp $ */
/* $NetBSD: arc4random.c,v 1.10 2003/08/20 13:32:33 itojun Exp $ */
/*-
* Copyright (c) 2002 The NetBSD Foundation, Inc.
@ -199,22 +199,23 @@ arc4random(void)
arc4_randrekey();
}
for(i = 0, ret = 0; i < 24; ret |= arc4_randbyte() << i, i += 8);
for (i = 0, ret = 0; i < 24; ret |= arc4_randbyte() << i, i += 8)
;
return ret;
}
void
arc4randbytes(void *p, size_t len)
{
u_int8_t *buf;
size_t i;
u_int8_t *buf;
size_t i;
buf = (u_int8_t *)p;
buf = (u_int8_t *)p;
for(i = 0; i < len; buf[i] = arc4_randbyte(), i++);
arc4_numruns += len / sizeof(u_int32_t);
if((arc4_numruns > ARC4_MAXRUNS) ||
(mono_time.tv_sec > arc4_tv_nextreseed.tv_sec)) {
for (i = 0; i < len; buf[i] = arc4_randbyte(), i++);
arc4_numruns += len / sizeof(u_int32_t);
if ((arc4_numruns > ARC4_MAXRUNS) ||
(mono_time.tv_sec > arc4_tv_nextreseed.tv_sec)) {
arc4_randrekey();
}
}