X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fdns.cpp;h=dee83d3acc3e8e44a7e984bd4b771b764de37b0b;hb=9d4004e8d477232c143830508a7a6e41fd2d31b7;hp=292ca00acb791311bd27e121f767b1b0101e0ac7;hpb=2f02a16a12f448d9bdfe15b4f0a9d1c3299f66c8;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/dns.cpp b/src/dns.cpp index 292ca00ac..dee83d3ac 100644 --- a/src/dns.cpp +++ b/src/dns.cpp @@ -2,8 +2,8 @@ * | Inspire Internet Relay Chat Daemon | * +------------------------------------+ * - * InspIRCd: (C) 2002-2007 InspIRCd Development Team - * See: http://www.inspircd.org/wiki/index.php/Credits + * InspIRCd: (C) 2002-2010 InspIRCd Development Team + * See: http://wiki.inspircd.org/Credits * * This program is free but copyrighted software; see * the file COPYING for details. @@ -11,6 +11,8 @@ * --------------------------------------------------- */ +/* $Core */ + /* dns.cpp - Nonblocking DNS functions. Very very loosely based on the firedns library, @@ -29,21 +31,13 @@ looks like this, walks like this or tastes like this. #include #else #include "inspircd_win32wrapper.h" -#include "inspircd_se_config.h" #endif -#include "dns.h" #include "inspircd.h" #include "socketengine.h" #include "configreader.h" #include "socket.h" -using irc::sockets::insp_inaddr; -using irc::sockets::insp_ntoa; -using irc::sockets::insp_aton; -using irc::sockets::OpenTCPSocket; -using irc::sockets::NonBlocking; - /** Masks to mask off the responses we get from the DNSRequest methods */ enum QueryInfo @@ -102,38 +96,41 @@ class DNSRequest unsigned long ttl; /* Time to live */ std::string orig; /* Original requested name/ip */ - DNSRequest(InspIRCd* Instance, DNS* dns, int id, const std::string &original); + DNSRequest(DNS* dns, int id, const std::string &original); ~DNSRequest(); DNSInfo ResultIsReady(DNSHeader &h, int length); int SendRequests(const DNSHeader *header, const int length, QueryType qt); }; -class CacheTimer : public InspTimer +class CacheTimer : public Timer { private: - InspIRCd* ServerInstance; DNS* dns; public: - CacheTimer(InspIRCd* Instance, DNS* thisdns) - : InspTimer(3600, Instance->Time(), true), ServerInstance(Instance), dns(thisdns) { } + CacheTimer(DNS* thisdns) + : Timer(3600, ServerInstance->Time(), true), dns(thisdns) { } - virtual void Tick(time_t TIME) + virtual void Tick(time_t) { dns->PruneCache(); } }; -class RequestTimeout : public InspTimer +class RequestTimeout : public Timer { - InspIRCd* ServerInstance; DNSRequest* watch; int watchid; public: - RequestTimeout(unsigned long n, InspIRCd* SI, DNSRequest* watching, int id) : InspTimer(n, time(NULL)), ServerInstance(SI), watch(watching), watchid(id) + RequestTimeout(unsigned long n, DNSRequest* watching, int id) : Timer(n, ServerInstance->Time()), watch(watching), watchid(id) + { + } + ~RequestTimeout() { + if (ServerInstance->Res) + Tick(0); } - void Tick(time_t TIME) + void Tick(time_t) { if (ServerInstance->Res->requests[watchid] == watch) { @@ -145,20 +142,30 @@ class RequestTimeout : public InspTimer ServerInstance->Res->Classes[watchid] = NULL; } ServerInstance->Res->requests[watchid] = NULL; - DELETE(watch); - return; + delete watch; } } }; +CachedQuery::CachedQuery(const std::string &res, unsigned int ttl) : data(res) +{ + expires = ServerInstance->Time() + ttl; +} + +int CachedQuery::CalcTTLRemaining() +{ + int n = expires - ServerInstance->Time(); + return (n < 0 ? 0 : n); +} + /* Allocate the processing buffer */ -DNSRequest::DNSRequest(InspIRCd* Instance, DNS* dns, int id, const std::string &original) : dnsobj(dns) +DNSRequest::DNSRequest(DNS* dns, int rid, const std::string &original) : dnsobj(dns) { res = new unsigned char[512]; *res = 0; orig = original; - RequestTimeout* RT = new RequestTimeout(Instance->Config->dns_timeout ? Instance->Config->dns_timeout : 5, Instance, this, id); - Instance->Timers->AddTimer(RT); /* The timer manager frees this */ + RequestTimeout* RT = new RequestTimeout(ServerInstance->Config->dns_timeout ? ServerInstance->Config->dns_timeout : 5, this, rid); + ServerInstance->Timers->AddTimer(RT); /* The timer manager frees this */ } /* Deallocate the processing buffer */ @@ -211,44 +218,19 @@ inline void DNS::EmptyHeader(unsigned char *output, const DNSHeader *header, con /** Send requests we have previously built down the UDP socket */ int DNSRequest::SendRequests(const DNSHeader *header, const int length, QueryType qt) { + ServerInstance->Logs->Log("RESOLVER", DEBUG,"DNSRequest::SendRequests"); + unsigned char payload[sizeof(DNSHeader)]; this->rr_class = 1; this->type = qt; - + DNS::EmptyHeader(payload,header,length); -#ifdef IPV6 - if (this->dnsobj->socketfamily == AF_INET6) - { - sockaddr_in6 addr; - memset(&addr,0,sizeof(addr)); - memcpy(&addr.sin6_addr,&dnsobj->myserver6,sizeof(addr.sin6_addr)); - addr.sin6_family = AF_INET6; - addr.sin6_port = htons(DNS::QUERY_PORT); - 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_INET; - addr.sin_port = htons(DNS::QUERY_PORT); - 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_INET; - addr.sin_port = htons(DNS::QUERY_PORT); - if (sendto(dnsobj->GetFd(), (const char*)payload, length + 12, 0, (sockaddr *) &addr, sizeof(addr)) != length+12) + if (ServerInstance->SE->SendTo(dnsobj, payload, length + 12, 0, &(dnsobj->myserver.sa), sa_size(dnsobj->myserver)) != length+12) return -1; -#endif + ServerInstance->Logs->Log("RESOLVER",DEBUG,"Sent OK"); return 0; } @@ -258,7 +240,7 @@ DNSRequest* DNS::AddQuery(DNSHeader *header, int &id, const char* original) /* Is the DNS connection down? */ if (this->GetFd() == -1) return NULL; - + /* Create an id */ id = this->PRNG() & DNS::MAX_REQUEST_ID; @@ -266,7 +248,7 @@ DNSRequest* DNS::AddQuery(DNSHeader *header, int &id, const char* original) while (requests[id]) id = this->PRNG() & DNS::MAX_REQUEST_ID; - DNSRequest* req = new DNSRequest(ServerInstance, this, id, original); + DNSRequest* req = new DNSRequest(this, id, original); header->id[0] = req->id[0] = id >> 8; header->id[1] = req->id[1] = id & 0xFF; @@ -313,15 +295,14 @@ int DNS::PruneCache() void DNS::Rehash() { - ip6munge = false; int portpass = 0; if (this->GetFd() > -1) { if (ServerInstance && ServerInstance->SE) ServerInstance->SE->DelFd(this); - shutdown(this->GetFd(), 2); - close(this->GetFd()); + ServerInstance->SE->Shutdown(this, 2); + ServerInstance->SE->Close(this); this->SetFd(-1); /* Rehash the cache */ @@ -333,44 +314,24 @@ void DNS::Rehash() this->cache = new dnscache(); } - if ((strstr(ServerInstance->Config->DNSServer,"::ffff:") == (char*)&ServerInstance->Config->DNSServer) || (strstr(ServerInstance->Config->DNSServer,"::FFFF:") == (char*)&ServerInstance->Config->DNSServer)) - { - ServerInstance->Log(DEFAULT,"WARNING: Using IPv4 addresses over IPv6 forces some DNS checks to be disabled."); - ServerInstance->Log(DEFAULT," This should not cause a problem, however it is recommended you migrate"); - ServerInstance->Log(DEFAULT," to a true IPv6 environment."); - this->ip6munge = true; - } - - this->socketfamily = AF_INET; -#ifdef IPV6 - if (strchr(ServerInstance->Config->DNSServer,':')) - { - this->socketfamily = AF_INET6; - 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 + irc::sockets::aptosa(ServerInstance->Config->DNSServer, DNS::QUERY_PORT, myserver); /* Initialize mastersocket */ - int s = OpenTCPSocket(ServerInstance->Config->DNSServer, SOCK_DGRAM); + int s = socket(myserver.sa.sa_family, SOCK_DGRAM, 0); this->SetFd(s); - NonBlocking(s); /* Have we got a socket and is it nonblocking? */ if (this->GetFd() != -1) { + ServerInstance->SE->SetReuse(s); + ServerInstance->SE->NonBlocking(s); /* Bind the port - port 0 INADDR_ANY */ if (!ServerInstance->BindSocket(this->GetFd(), portpass, "", false)) { /* Failed to bind */ - shutdown(this->GetFd(),2); - close(this->GetFd()); + ServerInstance->Logs->Log("RESOLVER",DEBUG,"Error binding dns socket"); + ServerInstance->SE->Shutdown(this, 2); + ServerInstance->SE->Close(this); this->SetFd(-1); } @@ -379,21 +340,26 @@ void DNS::Rehash() /* Hook the descriptor into the socket engine */ if (ServerInstance && ServerInstance->SE) { - if (!ServerInstance->SE->AddFd(this)) + if (!ServerInstance->SE->AddFd(this, FD_WANT_POLL_READ | FD_WANT_NO_WRITE)) { - ServerInstance->Log(DEFAULT,"Internal error starting DNS - hostnames will NOT resolve."); - shutdown(this->GetFd(),2); - close(this->GetFd()); + ServerInstance->Logs->Log("RESOLVER",DEFAULT,"Internal error starting DNS - hostnames will NOT resolve."); + ServerInstance->SE->Shutdown(this, 2); + ServerInstance->SE->Close(this); this->SetFd(-1); } } } } + else + { + ServerInstance->Logs->Log("RESOLVER",DEBUG,"Error creating dns socket"); + } } /** Initialise the DNS UDP socket so that we can send requests */ -DNS::DNS(InspIRCd* Instance) : ServerInstance(Instance) +DNS::DNS() { + ServerInstance->Logs->Log("RESOLVER",DEBUG,"DNS::DNS"); /* Clear the Resolver class table */ memset(Classes,0,sizeof(Classes)); @@ -407,7 +373,7 @@ DNS::DNS(InspIRCd* Instance) : ServerInstance(Instance) /* DNS::Rehash() sets this to a valid ptr */ this->cache = NULL; - + /* Again, DNS::Rehash() sets this to a * valid value */ @@ -417,7 +383,7 @@ DNS::DNS(InspIRCd* Instance) : ServerInstance(Instance) */ this->Rehash(); - this->PruneTimer = new CacheTimer(ServerInstance, this); + this->PruneTimer = new CacheTimer(this); ServerInstance->Timers->AddTimer(this->PruneTimer); } @@ -465,7 +431,7 @@ int DNS::GetIP(const char *name) DNSHeader h; int id; int length; - + if ((length = this->MakePayload(name, DNS_QUERY_A, 1, (unsigned char*)&h.payload)) == -1) return -1; @@ -513,38 +479,6 @@ int DNS::GetCName(const char *alias) return id; } -/** Start lookup of an IP address to a hostname */ -int DNS::GetName(const 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, 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) { @@ -552,7 +486,7 @@ int DNS::GetNameForce(const char *ip, ForceProtocol fp) DNSHeader h; int id; int length; -#ifdef SUPPORT_IP6LINKS + if (fp == PROTOCOL_IPV6) { in6_addr i; @@ -565,7 +499,6 @@ int DNS::GetNameForce(const char *ip, ForceProtocol fp) return -1; } else -#endif { in_addr i; if (inet_aton(ip, &i)) @@ -593,7 +526,6 @@ 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 */ { @@ -606,9 +538,6 @@ 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 */ @@ -618,25 +547,16 @@ DNSResult DNS::GetResult() DNSHeader header; DNSRequest *req; unsigned char buffer[sizeof(DNSHeader)]; - 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; - - void* m_readEvent = NULL; - GetExt("windows_readevent", m_readEvent); + irc::sockets::sockaddrs from; + memset(&from, 0, sizeof(from)); + socklen_t x = sizeof(from); - int length = _recvfrom(this->GetFd(),(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,""); } @@ -645,35 +565,13 @@ DNSResult DNS::GetResult() * is not 53. * A user could in theory still spoof dns packets anyway * but this is less trivial than just sending garbage - * to the client, which is possible without this check. + * to the server, which is possible without this check. * * -- 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); - } - else -#endif - { - ipaddr_from = inet_ntoa(((sockaddr_in*)from)->sin_addr); - port_from = ntohs(((sockaddr_in*)from)->sin_port); - } - - delete[] from; - - /* We cant perform this security check if you're using 4in6. - * Tough luck to you, choose one or't other! - */ - if (!ip6munge) + if (memcmp(&from, &myserver, sizeof(irc::sockets::sockaddrs))) { - if ((port_from != DNS::QUERY_PORT) || (strcasecmp(ipaddr_from, ServerInstance->Config->DNSServer))) - { - return DNSResult(-1,"",0,""); - } + return DNSResult(-1,"",0,""); } /* Put the read header info into a header class */ @@ -733,15 +631,7 @@ DNSResult DNS::GetResult() case DNS_QUERY_AAAA: { - snprintf(formatted,40,"%x:%x:%x:%x:%x:%x:%x:%x", - (ntohs(data.first[0]) + ntohs(data.first[1] << 8)), - (ntohs(data.first[2]) + ntohs(data.first[3] << 8)), - (ntohs(data.first[4]) + ntohs(data.first[5] << 8)), - (ntohs(data.first[6]) + ntohs(data.first[7] << 8)), - (ntohs(data.first[8]) + ntohs(data.first[9] << 8)), - (ntohs(data.first[10]) + ntohs(data.first[11] << 8)), - (ntohs(data.first[12]) + ntohs(data.first[13] << 8)), - (ntohs(data.first[14]) + ntohs(data.first[15] << 8))); + inet_ntop(AF_INET6, data.first, formatted, sizeof(formatted)); char* c = strstr(formatted,":0:"); if (c != NULL) { @@ -776,7 +666,6 @@ DNSResult DNS::GetResult() default: break; - } /* Build the reply with the id and hostname/ip in it */ @@ -799,6 +688,7 @@ DNSInfo DNSRequest::ResultIsReady(DNSHeader &header, int length) rr.type = DNS_QUERY_NONE; rr.rdlength = 0; rr.ttl = 1; /* GCC is a whiney bastard -- see the XXX below. */ + rr.rr_class = 0; /* Same for VC++ */ if (!(header.flags1 & FLAGS_MASK_QR)) return std::make_pair((unsigned char*)NULL,"Not a query result"); @@ -858,7 +748,9 @@ DNSInfo DNSRequest::ResultIsReady(DNSHeader &header, int length) /* XXX: We actually initialise 'rr' here including its ttl field */ DNS::FillResourceRecord(&rr,&header.payload[i]); + i += 10; + ServerInstance->Logs->Log("RESOLVER",DEBUG,"Resolver: rr.type is %d and this.type is %d rr.class %d this.class %d", rr.type, this->type, rr.rr_class, this->rr_class); if (rr.type != this->type) { curanswer++; @@ -874,7 +766,7 @@ DNSInfo DNSRequest::ResultIsReady(DNSHeader &header, int length) break; } if ((unsigned int)curanswer == header.ancount) - return std::make_pair((unsigned char*)NULL,"No valid answers"); + return std::make_pair((unsigned char*)NULL,"No A, AAAA or PTR type answers (" + ConvToStr(header.ancount) + " answers)"); if (i + rr.rdlength > (unsigned int)length) return std::make_pair((unsigned char*)NULL,"Resource record larger than stated"); @@ -930,16 +822,17 @@ DNSInfo DNSRequest::ResultIsReady(DNSHeader &header, int length) res[rr.rdlength] = 0; break; } - return std::make_pair(res,"No error");; + return std::make_pair(res,"No error"); } /** Close the master socket */ DNS::~DNS() { - shutdown(this->GetFd(), 2); - close(this->GetFd()); + ServerInstance->SE->Shutdown(this, 2); + ServerInstance->SE->Close(this); ServerInstance->Timers->DelTimer(this->PruneTimer); - delete this->PruneTimer; + if (cache) + delete cache; } CachedQuery* DNS::GetCache(const std::string &source) @@ -950,7 +843,7 @@ CachedQuery* DNS::GetCache(const std::string &source) else return NULL; } - + void DNS::DelCache(const std::string &source) { cache->erase(source.c_str()); @@ -963,8 +856,9 @@ void Resolver::TriggerCachedResult() } /** High level abstraction of dns used by application at large */ -Resolver::Resolver(InspIRCd* Instance, const std::string &source, QueryType qt, bool &cached, Module* creator) : ServerInstance(Instance), Creator(creator), input(source), querytype(qt) +Resolver::Resolver(const std::string &source, QueryType qt, bool &cached, Module* creator) : Creator(creator), input(source), querytype(qt) { + ServerInstance->Logs->Log("RESOLVER",DEBUG,"Resolver::Resolver"); cached = false; CQ = ServerInstance->Res->GetCache(source); @@ -982,28 +876,12 @@ Resolver::Resolver(InspIRCd* Instance, const std::string &source, QueryType qt, } } - insp_inaddr binip; - switch (querytype) { case DNS_QUERY_A: this->myid = ServerInstance->Res->GetIP(source.c_str()); break; - case DNS_QUERY_PTR: - if (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); @@ -1033,10 +911,14 @@ Resolver::Resolver(InspIRCd* Instance, const std::string &source, QueryType qt, /* We shouldnt get here really */ return; } + else + { + ServerInstance->Logs->Log("RESOLVER",DEBUG,"DNS request id %d", this->myid); + } } /** Called when an error occurs */ -void Resolver::OnError(ResolverError e, const std::string &errormessage) +void Resolver::OnError(ResolverError, const std::string&) { /* Nothing in here */ } @@ -1059,10 +941,17 @@ Module* Resolver::GetCreator() } /** Process a socket read event */ -void DNS::HandleEvent(EventType et, int errornum) +void DNS::HandleEvent(EventType, int) { /* Fetch the id and result of the next available packet */ - DNSResult res = this->GetResult(); + DNSResult res(0,"",0,""); + res.id = 0; + ServerInstance->Logs->Log("RESOLVER",DEBUG,"Handle DNS event"); + + res = this->GetResult(); + + ServerInstance->Logs->Log("RESOLVER",DEBUG,"Result id %d", res.id); + /* Is there a usable request id? */ if (res.id != -1) { @@ -1080,6 +969,7 @@ void DNS::HandleEvent(EventType et, int errornum) delete Classes[res.id]; Classes[res.id] = NULL; } + return; } else { @@ -1106,6 +996,7 @@ void DNS::HandleEvent(EventType et, int errornum) /** Add a derived Resolver to the working set */ bool DNS::AddResolverClass(Resolver* r) { + ServerInstance->Logs->Log("RESOLVER",DEBUG,"AddResolverClass 0x%08lx", (unsigned long)r); /* Check the pointers validity and the id's validity */ if ((r) && (r->GetId() > -1)) { @@ -1143,7 +1034,7 @@ void DNS::CleanResolvers(Module* module) { if (Classes[i]->GetCreator() == module) { - Classes[i]->OnError(RESLOVER_FORCEUNLOAD, "Parent module is unloading"); + Classes[i]->OnError(RESOLVER_FORCEUNLOAD, "Parent module is unloading"); delete Classes[i]; Classes[i] = NULL; } @@ -1155,12 +1046,9 @@ void DNS::CleanResolvers(Module* module) unsigned long DNS::PRNG() { unsigned long val = 0; - timeval n; serverstats* s = ServerInstance->stats; - 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 = (rand() ^ this->currid++ ^ s->statsAccept) + ServerInstance->Time_ns(); + val += (s->statsCollisions ^ s->statsDnsGood) * s->statsDnsBad; + val += (s->statsConnects ^ (unsigned long)s->statsSent ^ (unsigned long)s->statsRecv); return val; } -