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Misc code cleanups arising from Google analysis.

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No security impleications or CVEs.
This commit is contained in:
Simon Kelley
2017-09-25 20:19:55 +01:00
parent 51eadb692a
commit 6a0b00f0d6
3 changed files with 5 additions and 3 deletions
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4
src/rfc1035.c
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@@ -37,7 +37,7 @@ int extract_name(struct dns_header *header, size_t plen, unsigned char **pp,
/* end marker */
{
/* check that there are the correct no of bytes after the name */
if (!CHECK_LEN(header, p, plen, extrabytes))
if (!CHECK_LEN(header, p1 ? p1 : p, plen, extrabytes))
return 0;
if (isExtract)
@@ -498,6 +498,8 @@ static unsigned char *do_doctor(unsigned char *p, int count, struct dns_header *
{
unsigned int i, len = *p1;
unsigned char *p2 = p1;
if ((p1 + len - p) >= rdlen)
return 0; /* bad packet */
/* make counted string zero-term and sanitise */
for (i = 0; i < len; i++)
{