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BUG/MINOR: dns: parsing error of some DNS response

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The function which parses a DNS response buffer did not move properly a
pointer when reading a packet where records does not use DNS "message
compression" techniques.

Thanks to 0yvind Johnsen for the help provided during the troubleshooting
session.
This commit is contained in:
Baptiste Assmann 2015-10-15 15:23:28 +02:00 committed by Willy Tarreau
parent 638f66ac05
commit 5d681ba976
1 changed files with 2 additions and 0 deletions
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2
src/dns.c
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@ -504,6 +504,8 @@ int dns_validate_dns_response(unsigned char *resp, unsigned char *bufend, char *
return DNS_RESP_INVALID; return DNS_RESP_INVALID;
if (memcmp(ptr, dn_name, dn_name_len) != 0) if (memcmp(ptr, dn_name, dn_name_len) != 0)
return DNS_RESP_WRONG_NAME; return DNS_RESP_WRONG_NAME;
reader += (dn_name_len + 1);
} }
else { else {
reader += (len + 1); reader += (len + 1);