int main( int argc, char ** argv ) {
char domain[ MYMAX ];
int len = 0;
unsigned int res;
int a, i, j, k, l, n, t;
res_init();
len = res_query( argv[1], C_IN, T_MX, buff, MYMAX );
printf( "MX records for gmail.com len =%d\n", len );
a = ReadHeader();
if ( getAnswerRecordCount() > 0 ) {
printf("\n;; Answer section:\n");
for ( i = 0; i < getAnswerRecordCount(); i++ ) {
a = ReadRecord( a );
}
}
if ( getAuthRecordCount() > 0 ) {
printf("\n;; Authority section:\n");
for ( i = 0; i < getAuthRecordCount(); i++ ) {
a = ReadRecord( a );
}
}
if ( getAdditionalRecordCount() > 0 ) {
printf("\n;; Additional section:\n");
for ( i = 0; i < getAdditionalRecordCount(); i++ ) {
a = ReadRecord( a );
}
}
/*
for( a=0; a < len; a++ ) {
printf( "[ %d ] = %d, %c\n", a, buff[ a ], buff[ a ] );
}
for( ; a < len; a++ ) {
printf( "buff[ %d ] = %d, %c\n", a, buff[ a ], buff[ a ] );
}
*/
}
bool DnsLayer::removeAdditionalRecord(DnsResource* additionalRecordToRemove)
{
bool res = removeResource(additionalRecordToRemove);
if (res)
{
// decrease number of additional records
getDnsHeader()->numberOfAdditional = htons(getAdditionalRecordCount() - 1);
}
return res;
}
DnsResource* DnsLayer::addAdditionalRecord(const std::string& name, DnsType dnsType, DnsClass dnsClass, uint32_t ttl, const std::string& data)
{
DnsResource* res = addResource(IDnsResource::DnsAdditional, name, dnsType, dnsClass, ttl, data);
if (res != NULL)
{
// increase number of authority records
getDnsHeader()->numberOfAdditional = htons(getAdditionalRecordCount() + 1);
}
return res;
}
std::string DnsLayer::toString()
{
std::ostringstream tidAsString;
tidAsString << ntohs(getDnsHeader()->transactionID);
std::ostringstream queryCount;
queryCount << getQueryCount();
std::ostringstream answerCount;
answerCount << getAnswerCount();
std::ostringstream authorityCount;
authorityCount << getAuthorityCount();
std::ostringstream additionalCount;
additionalCount << getAdditionalRecordCount();
if (getAnswerCount() > 0)
{
return "DNS query response, ID: " + tidAsString.str() + ";" +
" queries: " + queryCount.str() +
", answers: " + answerCount.str() +
", authorities: " + authorityCount.str() +
", additional record: " + additionalCount.str();
}
else if (getQueryCount() > 0)
{
return "DNS query, ID: " + tidAsString.str() + ";" +
" queries: " + queryCount.str() +
", answers: " + answerCount.str() +
", authorities: " + authorityCount.str() +
", additional record: " + additionalCount.str();
}
else // not likely - a DNS with no answers and no queries
{
return "DNS record without queries and answers, ID: " + tidAsString.str() + ";" +
" queries: " + queryCount.str() +
", answers: " + answerCount.str() +
", authorities: " + authorityCount.str() +
", additional record: " + additionalCount.str();
}
}
