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Thomas Winget 2014-09-23 19:27:03 -04:00 committed by Riccardo Spagni
parent 1dece111cc
commit 1e193d687d
1 changed files with 42 additions and 15 deletions
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57
src/common/dns_utils.cpp
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@ -27,13 +27,52 @@
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "common/dns_utils.h"
#include <sstream>
#include <ldns/rr.h> // for RR type and class defs
#include <unbound.h>
#include <arpa/inet.h> // for inet_ntoa (bytes to text for IPs)
namespace tools
{
// fuck it, I'm tired of dealing with getnameinfo()/inet_ntop/etc
std::string ipv4_to_string(const char* src)
{
std::stringstream ss;
unsigned int bytes[4];
for (int i = 0; i < 4; i++)
{
unsigned char a = src[i];
bytes[i] = a;
}
ss << bytes[0] << "."
<< bytes[1] << "."
<< bytes[2] << "."
<< bytes[3];
return ss.str();
}
// this obviously will need to change, but is here to reflect the above
// stop-gap measure and to make the tests pass at least...
std::string ipv6_to_string(const char* src)
{
std::stringstream ss;
unsigned int bytes[8];
for (int i = 0; i < 8; i++)
{
unsigned char a = src[i];
bytes[i] = a;
}
ss << bytes[0] << ":"
<< bytes[1] << ":"
<< bytes[2] << ":"
<< bytes[3] << ":"
<< bytes[4] << ":"
<< bytes[5] << ":"
<< bytes[6] << ":"
<< bytes[7];
return ss.str();
}
// custom smart pointer.
// TODO: see if std::auto_ptr and the like support custom destructors
class ub_result_ptr
@ -96,13 +135,7 @@ std::vector<std::string> DNSResolver::get_ipv4(const std::string& url)
{
for (size_t i=0; result.ptr->data[i] != NULL; i++)
{
char as_str[INET_ADDRSTRLEN];
// convert bytes to string, append if no error
if (inet_ntop(AF_INET, result.ptr->data[i], as_str, sizeof(as_str)))
{
addresses.push_back(as_str);
}
addresses.push_back(ipv4_to_string(result.ptr->data[i]));
}
}
}
@ -128,13 +161,7 @@ std::vector<std::string> DNSResolver::get_ipv6(const std::string& url)
{
for (size_t i=0; result.ptr->data[i] != NULL; i++)
{
char as_str[INET6_ADDRSTRLEN];
// convert bytes to string, append if no error
if (inet_ntop(AF_INET6, result.ptr->data[i], as_str, sizeof(as_str)))
{
addresses.push_back(as_str);
}
addresses.push_back(ipv6_to_string(result.ptr->data[i]));
}
}
}