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authorume <ume@FreeBSD.org>2003-10-31 16:06:05 +0000
committerume <ume@FreeBSD.org>2003-10-31 16:06:05 +0000
commit2f50cbb708332f469b4898f9f92ba17e95dcf200 (patch)
tree9fab0c15e434400bde480ac16800b9c5b2d6154d /sys/netinet6/in6_ifattach.c
parentae762ca5fedee2ad32e940c570d7552fb54f7dbe (diff)
downloadFreeBSD-src-2f50cbb708332f469b4898f9f92ba17e95dcf200.zip
FreeBSD-src-2f50cbb708332f469b4898f9f92ba17e95dcf200.tar.gz
use arc4random.
Obtained from: KAME
Diffstat (limited to 'sys/netinet6/in6_ifattach.c')
-rw-r--r--sys/netinet6/in6_ifattach.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/sys/netinet6/in6_ifattach.c b/sys/netinet6/in6_ifattach.c
index 13494f6..ea0db8b 100644
--- a/sys/netinet6/in6_ifattach.c
+++ b/sys/netinet6/in6_ifattach.c
@@ -140,7 +140,6 @@ generate_tmp_ifid(seed0, seed1, ret)
MD5_CTX ctxt;
u_int8_t seed[16], digest[16], nullbuf[8];
u_int32_t val32;
- struct timeval tv;
/* If there's no hisotry, start with a random seed. */
bzero(nullbuf, sizeof(nullbuf));
@@ -148,8 +147,7 @@ generate_tmp_ifid(seed0, seed1, ret)
int i;
for (i = 0; i < 2; i++) {
- microtime(&tv);
- val32 = random() ^ tv.tv_usec;
+ val32 = arc4random();
bcopy(&val32, seed + sizeof(val32) * i, sizeof(val32));
}
} else
@@ -191,8 +189,7 @@ generate_tmp_ifid(seed0, seed1, ret)
log(LOG_INFO,
"generate_tmp_ifid: computed MD5 value is zero.\n");
- microtime(&tv);
- val32 = random() ^ tv.tv_usec;
+ val32 = arc4random();
val32 = 1 + (val32 % (0xffffffff - 1));
}
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