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silence coverity - reviewed by Evan over jabber

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(cherry picked from commit e31a37787b)
This commit is contained in:
Mark Andrews 2014-07-01 09:52:02 +10:00
parent a4e8344569
commit 7856e63cd4
1 changed files with 1 additions and 1 deletions
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2
lib/isc/netaddr.c
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@ -240,7 +240,7 @@ isc_netaddr_prefixok(const isc_netaddr_t *na, unsigned int prefixlen) {
return (ISC_R_FAILURE);
nbytes++;
}
if (memcmp(p + nbytes, zeros, ipbytes - nbytes) != 0)
if (nbytes < ipbytes && memcmp(p + nbytes, zeros, ipbytes - nbytes) != 0)
return (ISC_R_FAILURE);
return (ISC_R_SUCCESS);
}