X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fdns.cpp;h=5af3fd198dc8721d4f834e90942c7bc8aad4aa1c;hb=a97624bd4b0ea052ca1380f9164769d6a6cab2a3;hp=ed2eff2bb75504e426653b2c062b9a73ff60b565;hpb=7c2334ddd64be97d13f1add53aa05f185d9450d2;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/dns.cpp b/src/dns.cpp index ed2eff2bb..5af3fd198 100644 --- a/src/dns.cpp +++ b/src/dns.cpp @@ -217,7 +217,6 @@ int DNSRequest::SendRequests(const DNSHeader *header, const int length, QueryTyp DNS::EmptyHeader(payload,header,length); -#ifdef IPV6 if (this->dnsobj->socketfamily == AF_INET6) { sockaddr_in6 addr; @@ -229,7 +228,6 @@ int DNSRequest::SendRequests(const DNSHeader *header, const int length, QueryTyp return -1; } else -#endif { sockaddr_in addr; memset(&addr,0,sizeof(addr)); @@ -334,7 +332,6 @@ void DNS::Rehash() } this->socketfamily = AF_INET; -#ifdef IPV6 if (strchr(ServerInstance->Config->DNSServer,':')) { this->socketfamily = AF_INET6; @@ -345,9 +342,6 @@ void DNS::Rehash() inet_aton(ServerInstance->Config->DNSServer, &this->myserver4); portpass = -1; } -#else - inet_aton(ServerInstance->Config->DNSServer, &this->myserver4); -#endif /* Initialize mastersocket */ int s = irc::sockets::OpenTCPSocket(ServerInstance->Config->DNSServer, SOCK_DGRAM); @@ -511,38 +505,6 @@ int DNS::GetCName(const char *alias) return id; } -/** Start lookup of an IP address to a hostname */ -int DNS::GetName(const irc::sockets::insp_inaddr *ip) -{ - char query[128]; - DNSHeader h; - int id; - int length; - -#ifdef IPV6 - unsigned char* c = (unsigned char*)&ip->s6_addr; - if (c[0] == 0 && c[1] == 0 && c[2] == 0 && c[3] == 0 && - c[4] == 0 && c[5] == 0 && c[6] == 0 && c[7] == 0 && - c[8] == 0 && c[9] == 0 && c[10] == 0xFF && c[11] == 0xFF) - sprintf(query,"%d.%d.%d.%d.in-addr.arpa",c[15],c[14],c[13],c[12]); - else - DNS::MakeIP6Int(query, (in6_addr*)ip); -#else - unsigned char* c = (unsigned char*)&ip->s_addr; - sprintf(query,"%d.%d.%d.%d.in-addr.arpa",c[3],c[2],c[1],c[0]); -#endif - - if ((length = this->MakePayload(query, DNS_QUERY_PTR, 1, (unsigned char*)&h.payload)) == -1) - return -1; - - DNSRequest* req = this->AddQuery(&h, id, irc::sockets::insp_ntoa(*ip)); - - if ((!req) || (req->SendRequests(&h, length, DNS_QUERY_PTR) == -1)) - return -1; - - return id; -} - /** Start lookup of an IP address to a hostname */ int DNS::GetNameForce(const char *ip, ForceProtocol fp) { @@ -550,7 +512,7 @@ int DNS::GetNameForce(const char *ip, ForceProtocol fp) DNSHeader h; int id; int length; -#ifdef SUPPORT_IP6LINKS + if (fp == PROTOCOL_IPV6) { in6_addr i; @@ -563,7 +525,6 @@ int DNS::GetNameForce(const char *ip, ForceProtocol fp) return -1; } else -#endif { in_addr i; if (inet_aton(ip, &i)) @@ -591,7 +552,6 @@ int DNS::GetNameForce(const char *ip, ForceProtocol fp) */ void DNS::MakeIP6Int(char* query, const in6_addr *ip) { -#ifdef SUPPORT_IP6LINKS const char* hex = "0123456789abcdef"; for (int index = 31; index >= 0; index--) /* for() loop steps twice per byte */ { @@ -604,9 +564,6 @@ void DNS::MakeIP6Int(char* query, const in6_addr *ip) *query++ = '.'; /* Seperator */ } strcpy(query,"ip6.arpa"); /* Suffix the string */ -#else - *query = 0; -#endif } /** Return the next id which is ready, and the result attached to it */ @@ -616,22 +573,17 @@ DNSResult DNS::GetResult() DNSHeader header; DNSRequest *req; unsigned char buffer[sizeof(DNSHeader)]; - sockaddr* from = new sockaddr[2]; -#ifdef IPV6 + irc::sockets::sockaddrs from; 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 = ServerInstance->SE->RecvFrom(this, (char*)buffer, sizeof(DNSHeader), 0, from, &x); + int length = ServerInstance->SE->RecvFrom(this, (char*)buffer, sizeof(DNSHeader), 0, &from.sa, &x); /* Did we get the whole header? */ if (length < 12) { /* Nope - something screwed up. */ - delete[] from; return DNSResult(-1,"",0,""); } @@ -644,22 +596,18 @@ DNSResult DNS::GetResult() * * -- Thanks jilles for pointing this one out. */ -#ifdef IPV6 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); + ipaddr_from = inet_ntop(AF_INET6, &from.in6.sin6_addr, nbuf, sizeof(nbuf)); + port_from = ntohs(from.in6.sin6_port); } else -#endif { - ipaddr_from = inet_ntoa(((sockaddr_in*)from)->sin_addr); - port_from = ntohs(((sockaddr_in*)from)->sin_port); + ipaddr_from = inet_ntoa(from.in4.sin_addr); + port_from = ntohs(from.in4.sin_port); } - delete[] from; - /* We cant perform this security check if you're using 4in6. * Tough luck to you, choose one or't other! */ @@ -971,28 +919,12 @@ Resolver::Resolver(InspIRCd* Instance, const std::string &source, QueryType qt, } } - irc::sockets::insp_inaddr binip; - switch (querytype) { case DNS_QUERY_A: this->myid = ServerInstance->Res->GetIP(source.c_str()); break; - case DNS_QUERY_PTR: - if (irc::sockets::insp_aton(source.c_str(), &binip) > 0) - { - /* Valid ip address */ - this->myid = ServerInstance->Res->GetName(&binip); - } - else - { - this->OnError(RESOLVER_BADIP, "Bad IP address for reverse lookup"); - throw ModuleException("Resolver: Bad IP address"); - return; - } - break; - case DNS_QUERY_PTR4: querytype = DNS_QUERY_PTR; this->myid = ServerInstance->Res->GetNameForce(source.c_str(), PROTOCOL_IPV4); @@ -1162,6 +1094,6 @@ unsigned long DNS::PRNG() gettimeofday(&n,NULL); val = (n.tv_usec ^ (getpid() ^ geteuid()) ^ ((this->currid++)) ^ s->statsAccept) + n.tv_sec; val = val + (s->statsCollisions ^ s->statsDnsGood) - s->statsDnsBad; - val += (s->statsConnects ^ (unsigned long)s->statsSent ^ (unsigned long)s->statsRecv) - ServerInstance->Config->ports.size(); + val += (s->statsConnects ^ (unsigned long)s->statsSent ^ (unsigned long)s->statsRecv) - ServerInstance->ports.size(); return val; }