X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fdns.cpp;h=33dba1abb72a2e14f3838379bde0185a034e4690;hb=b844d1cbbe79585facc69b9247baa8427cff0b62;hp=d22c60c00dd3f8b0d81ba3fce67a9d113182acd8;hpb=e6841afbdb5ca3979527bf40ffc1d72b796032e1;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/dns.cpp b/src/dns.cpp index d22c60c00..33dba1abb 100644 --- a/src/dns.cpp +++ b/src/dns.cpp @@ -32,7 +32,6 @@ looks like this, walks like this or tastes like this. #include "configreader.h" #include "socket.h" -using irc::sockets::insp_sockaddr; using irc::sockets::insp_inaddr; using irc::sockets::insp_ntoa; using irc::sockets::insp_aton; @@ -218,9 +217,9 @@ int DNSRequest::SendRequests(const DNSHeader *header, const int length, QueryTyp sockaddr_in6 addr; memset(&addr,0,sizeof(addr)); memcpy(&addr.sin6_addr,&dnsobj->myserver6,sizeof(addr.sin6_addr)); - addr.sin6_family = AF_FAMILY; + addr.sin6_family = AF_INET6; addr.sin6_port = htons(DNS::QUERY_PORT); - if (sendto(dnsobj->GetFd(), payload, length + 12, 0, (sockaddr *) &addr, sizeof(addr)) == -1) + if (sendto(dnsobj->GetFd(), payload, length + 12, 0, (sockaddr *) &addr, sizeof(addr)) != length+12) return -1; } else @@ -228,18 +227,18 @@ int DNSRequest::SendRequests(const DNSHeader *header, const int length, QueryTyp sockaddr_in addr; memset(&addr,0,sizeof(addr)); memcpy(&addr.sin_addr.s_addr,&dnsobj->myserver4,sizeof(addr.sin_addr)); - addr.sin_family = AF_FAMILY; + addr.sin_family = AF_INET; addr.sin_port = htons(DNS::QUERY_PORT); - if (sendto(dnsobj->GetFd(), payload, length + 12, 0, (sockaddr *) &addr, sizeof(addr)) == -1) + if (sendto(dnsobj->GetFd(), payload, length + 12, 0, (sockaddr *) &addr, sizeof(addr)) != length+12) return -1; } #else sockaddr_in addr; memset(&addr,0,sizeof(addr)); memcpy(&addr.sin_addr.s_addr, &dnsobj->myserver4, sizeof(addr.sin_addr)); - addr.sin_family = AF_FAMILY; + addr.sin_family = AF_INET; addr.sin_port = htons(DNS::QUERY_PORT); - if (sendto(dnsobj->GetFd(), payload, length + 12, 0, (sockaddr *) &addr, sizeof(addr)) == -1) + if (sendto(dnsobj->GetFd(), payload, length + 12, 0, (sockaddr *) &addr, sizeof(addr)) != length+12) return -1; #endif @@ -308,6 +307,7 @@ int DNS::PruneCache() void DNS::Rehash() { ip6munge = false; + int portpass = 0; if (this->GetFd() > -1) { @@ -339,10 +339,13 @@ void DNS::Rehash() if (strchr(ServerInstance->Config->DNSServer,':')) { this->socketfamily = AF_INET6; - inet_pton(AF_INET6, &this->myserver6, ServerInstance->Config->DNSServer); + inet_pton(AF_INET6, ServerInstance->Config->DNSServer, &this->myserver6); } else + { inet_aton(ServerInstance->Config->DNSServer, &this->myserver4); + portpass = -1; + } #else inet_aton(ServerInstance->Config->DNSServer, &this->myserver4); #endif @@ -355,7 +358,7 @@ void DNS::Rehash() if (this->GetFd() != -1) { /* Bind the port - port 0 INADDR_ANY */ - if (!ServerInstance->BindSocket(this->GetFd(), 0, "", false)) + if (!ServerInstance->BindSocket(this->GetFd(), portpass, "", false)) { /* Failed to bind */ shutdown(this->GetFd(),2); @@ -537,7 +540,6 @@ int DNS::GetName(const insp_inaddr *ip) /** Start lookup of an IP address to a hostname */ int DNS::GetNameForce(const char *ip, ForceProtocol fp) { - ServerInstance->Log(DEBUG,"GetNameForce: %s", ip); char query[128]; DNSHeader h; int id; @@ -548,7 +550,6 @@ int DNS::GetNameForce(const char *ip, ForceProtocol fp) in6_addr i; if (inet_pton(AF_INET6, ip, &i) > 0) { - ServerInstance->Log(DEBUG,"Resolve to ipv6"); DNS::MakeIP6Int(query, &i); } else @@ -561,7 +562,6 @@ int DNS::GetNameForce(const char *ip, ForceProtocol fp) in_addr i; if (inet_aton(ip, &i)) { - ServerInstance->Log(DEBUG,"Resolve to ipv4"); unsigned char* c = (unsigned char*)&i.s_addr; sprintf(query,"%d.%d.%d.%d.in-addr.arpa",c[3],c[2],c[1],c[0]); } @@ -610,17 +610,22 @@ DNSResult DNS::GetResult() DNSHeader header; DNSRequest *req; unsigned char buffer[sizeof(DNSHeader)]; - sockaddr from; - socklen_t x = sizeof(from); - const char* ipaddr_from = ""; + sockaddr* from = new sockaddr[2]; +#ifdef IPV6 + socklen_t x = this->socketfamily == AF_INET ? sizeof(sockaddr_in) : sizeof(sockaddr_in6); +#else + socklen_t x = sizeof(sockaddr_in); +#endif + const char* ipaddr_from; unsigned short int port_from = 0; - int length = recvfrom(this->GetFd(),buffer,sizeof(DNSHeader),0,&from,&x); + int length = recvfrom(this->GetFd(),buffer,sizeof(DNSHeader),0,from,&x); /* Did we get the whole header? */ if (length < 12) { /* Nope - something screwed up. */ + delete[] from; return DNSResult(-1,"",0,""); } @@ -634,13 +639,24 @@ DNSResult DNS::GetResult() * -- Thanks jilles for pointing this one out. */ #ifdef IPV6 - ipaddr_from = insp_ntoa(((sockaddr_in6*)&from)->sin6_addr); - port_from = ntohs(((sockaddr_in6*)&from)->sin6_port); + char nbuf[MAXBUF]; + if (this->socketfamily == AF_INET6) + { + ipaddr_from = inet_ntop(AF_INET6, &((sockaddr_in6*)from)->sin6_addr, nbuf, sizeof(nbuf)); + port_from = ntohs(((sockaddr_in6*)from)->sin6_port); + } + else + { + ipaddr_from = inet_ntoa(((sockaddr_in*)from)->sin_addr); + port_from = ntohs(((sockaddr_in*)from)->sin_port); + } #else - ipaddr_from = insp_ntoa(((sockaddr_in*)&from)->sin_addr); - port_from = ntohs(((sockaddr_in*)&from)->sin_port); + ipaddr_from = inet_ntoa(((sockaddr_in*)from)->sin_addr); + port_from = ntohs(((sockaddr_in*)from)->sin_port); #endif + delete[] from; + /* We cant perform this security check if you're using 4in6. * Tough luck to you, choose one or't other! */