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Fix a bug in rdlen update while decompressing a name

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Giovanni Bajo authored and Simon Kelley committed 2013-08-20 15:41:24 +01:00
1 parent ec2962eacb
commit 0db0e0c216
1 file changed
+3 -1
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src/dnssec.c
+3 -1
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@@ -141,8 +141,10 @@ static int process_domain_name(struct dns_header *header, size_t pktlen,
label_type = count & 0xC0;
if (label_type == 0xC0)
{
int l2;
if (p >= end)
return 0;
l2 = *p++;
if (hops == 0)
{
if (p - *rdata > *rdlen)
@@ -152,7 +154,7 @@ static int process_domain_name(struct dns_header *header, size_t pktlen,
}
if (++hops == 256)
return 0;
p = (unsigned char*)header + (count & 0x3F) * 256 + *p;
p = (unsigned char*)header + (count & 0x3F) * 256 + l2;
}
else if (label_type == 0x00)
{