147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt/* -*- Mode: C; tab-width: 4 -*- 247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * 347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * Copyright (c) 2003 Apple Computer, Inc. All rights reserved. 447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * 547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * Licensed under the Apache License, Version 2.0 (the "License"); 647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * you may not use this file except in compliance with the License. 747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * You may obtain a copy of the License at 847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * 947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * http://www.apache.org/licenses/LICENSE-2.0 1047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * 1147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * Unless required by applicable law or agreed to in writing, software 1247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * distributed under the License is distributed on an "AS IS" BASIS, 1347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * See the License for the specific language governing permissions and 1547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * limitations under the License. 1647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 1747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * This file defines a simple shim layer between a client calling the "/usr/include/dns_sd.h" APIs 1847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * and an implementation of mDNSCore ("mDNSEmbeddedAPI.h" APIs) in the same address space. 1947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * When the client calls a dns_sd.h function, the shim calls the corresponding mDNSEmbeddedAPI.h 2047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * function, and when mDNSCore calls the shim's callback, we call through to the client's callback. 2147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * The shim is responsible for two main things: 2247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * - converting string parameters between C string format and native DNS format, 2347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * - and for allocating and freeing memory. 2447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt */ 2547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 2647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#include "dns_sd.h" // Defines the interface to the client layer above 2747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#include "mDNSEmbeddedAPI.h" // The interface we're building on top of 2847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwaltextern mDNS mDNSStorage; // We need to pass the address of this storage to the lower-layer functions 2947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 3047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#if MDNS_BUILDINGSHAREDLIBRARY || MDNS_BUILDINGSTUBLIBRARY 3147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#pragma export on 3247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#endif 3347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 3447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt//************************************************************************************************************* 3547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// General Utility Functions 3647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 3747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// All mDNS_DirectOP structures start with the pointer to the type-specific disposal function. 3847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// Optional type-specific data follows these three fields 3947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// When the client starts an operation, we return the address of the corresponding mDNS_DirectOP 4047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// as the DNSServiceRef for the operation 4147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// We stash the value in core context fields so we can get it back to recover our state in our callbacks, 4247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// and pass it though to the client for it to recover its state 4347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 4447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalttypedef struct mDNS_DirectOP_struct mDNS_DirectOP; 4547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalttypedef void mDNS_DirectOP_Dispose(mDNS_DirectOP *op); 4647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwaltstruct mDNS_DirectOP_struct 4747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 4847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNS_DirectOP_Dispose *disposefn; 4947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt }; 5047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 5147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalttypedef struct 5247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 5347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNS_DirectOP_Dispose *disposefn; 5447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceRegisterReply callback; 5547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt void *context; 5647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNSBool autoname; // Set if this name is tied to the Computer Name 5747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNSBool autorename; // Set if we just got a name conflict and now need to automatically pick a new name 5847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt domainlabel name; 5947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt domainname host; 6047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ServiceRecordSet s; 6147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } mDNS_DirectOP_Register; 6247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 6347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalttypedef struct 6447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 6547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNS_DirectOP_Dispose *disposefn; 6647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceBrowseReply callback; 6747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt void *context; 6847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSQuestion q; 6947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } mDNS_DirectOP_Browse; 7047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 7147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalttypedef struct 7247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 7347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNS_DirectOP_Dispose *disposefn; 7447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceResolveReply callback; 7547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt void *context; 7647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const ResourceRecord *SRV; 7747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const ResourceRecord *TXT; 7847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSQuestion qSRV; 7947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSQuestion qTXT; 8047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } mDNS_DirectOP_Resolve; 8147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 8247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalttypedef struct 8347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 8447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNS_DirectOP_Dispose *disposefn; 8547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceQueryRecordReply callback; 8647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt void *context; 8747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSQuestion q; 8847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } mDNS_DirectOP_QueryRecord; 8947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 9047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwaltint DNSServiceRefSockFD(DNSServiceRef sdRef) 9147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 9247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)sdRef; // Unused 9347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt return(0); 9447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 9547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 9647e4cebad7397422144bb03a21f3f7682c062c4aRobert GreenwaltDNSServiceErrorType DNSServiceProcessResult(DNSServiceRef sdRef) 9747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 9847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)sdRef; // Unused 9947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt return(kDNSServiceErr_NoError); 10047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 10147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 10247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwaltvoid DNSServiceRefDeallocate(DNSServiceRef sdRef) 10347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 10447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNS_DirectOP *op = (mDNS_DirectOP *)sdRef; 10547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt //LogMsg("DNSServiceRefDeallocate"); 10647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt op->disposefn(op); 10747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 10847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 10947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt//************************************************************************************************************* 11047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// Domain Enumeration 11147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 11247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// Not yet implemented, so don't include in stub library 11347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// We DO include it in the actual Extension, so that if a later client compiled to use this 11447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// is run against this Extension, it will get a reasonable error code instead of just 11547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// failing to launch (Strong Link) or calling an unresolved symbol and crashing (Weak Link) 11647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#if !MDNS_BUILDINGSTUBLIBRARY 11747e4cebad7397422144bb03a21f3f7682c062c4aRobert GreenwaltDNSServiceErrorType DNSServiceEnumerateDomains 11847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ( 11947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceRef *sdRef, 12047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceFlags flags, 12147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint32_t interfaceIndex, 12247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceDomainEnumReply callback, 12347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt void *context /* may be NULL */ 12447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ) 12547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 12647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)sdRef; // Unused 12747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)flags; // Unused 12847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)interfaceIndex; // Unused 12947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)callback; // Unused 13047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)context; // Unused 13147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt return(kDNSServiceErr_Unsupported); 13247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 13347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#endif 13447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 13547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt//************************************************************************************************************* 13647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// Register Service 13747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 13847e4cebad7397422144bb03a21f3f7682c062c4aRobert GreenwaltmDNSlocal void FreeDNSServiceRegistration(mDNS_DirectOP_Register *x) 13947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 14047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt while (x->s.Extras) 14147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 14247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ExtraResourceRecord *extras = x->s.Extras; 14347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->s.Extras = x->s.Extras->next; 14447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (extras->r.resrec.rdata != &extras->r.rdatastorage) 14547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNSPlatformMemFree(extras->r.resrec.rdata); 14647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNSPlatformMemFree(extras); 14747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 14847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 14947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (x->s.RR_TXT.resrec.rdata != &x->s.RR_TXT.rdatastorage) 15047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNSPlatformMemFree(x->s.RR_TXT.resrec.rdata); 15147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 15247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (x->s.SubTypes) mDNSPlatformMemFree(x->s.SubTypes); 15347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 15447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNSPlatformMemFree(x); 15547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 15647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 15747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwaltstatic void DNSServiceRegisterDispose(mDNS_DirectOP *op) 15847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 15947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNS_DirectOP_Register *x = (mDNS_DirectOP_Register*)op; 16047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->autorename = mDNSfalse; 16147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // If mDNS_DeregisterService() returns mStatus_NoError, that means that the service was found in the list, 16247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // is sending its goodbye packet, and we'll get an mStatus_MemFree message when we can free the memory. 16347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // If mDNS_DeregisterService() returns an error, it means that the service had already been removed from 16447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // the list, so we should go ahead and free the memory right now 16547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (mDNS_DeregisterService(&mDNSStorage, &x->s) != mStatus_NoError) 16647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt FreeDNSServiceRegistration(x); 16747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 16847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 16947e4cebad7397422144bb03a21f3f7682c062c4aRobert GreenwaltmDNSlocal void RegCallback(mDNS *const m, ServiceRecordSet *const sr, mStatus result) 17047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 17147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNS_DirectOP_Register *x = (mDNS_DirectOP_Register*)sr->ServiceContext; 17247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 17347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt domainlabel name; 17447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt domainname type, dom; 17547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt char namestr[MAX_DOMAIN_LABEL+1]; // Unescaped name: up to 63 bytes plus C-string terminating NULL. 17647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt char typestr[MAX_ESCAPED_DOMAIN_NAME]; 17747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt char domstr [MAX_ESCAPED_DOMAIN_NAME]; 17847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (!DeconstructServiceName(sr->RR_SRV.resrec.name, &name, &type, &dom)) return; 17947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (!ConvertDomainLabelToCString_unescaped(&name, namestr)) return; 18047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (!ConvertDomainNameToCString(&type, typestr)) return; 18147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (!ConvertDomainNameToCString(&dom, domstr)) return; 18247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 18347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (result == mStatus_NoError) 18447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 18547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (x->callback) 18647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->callback((DNSServiceRef)x, 0, result, namestr, typestr, domstr, x->context); 18747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 18847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt else if (result == mStatus_NameConflict) 18947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 19047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (x->autoname) mDNS_RenameAndReregisterService(m, sr, mDNSNULL); 19147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt else if (x->callback) 19247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->callback((DNSServiceRef)x, 0, result, namestr, typestr, domstr, x->context); 19347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 19447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt else if (result == mStatus_MemFree) 19547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 19647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (x->autorename) 19747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 19847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->autorename = mDNSfalse; 19947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->name = mDNSStorage.nicelabel; 20047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNS_RenameAndReregisterService(m, &x->s, &x->name); 20147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 20247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt else 20347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt FreeDNSServiceRegistration(x); 20447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 20547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 20647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 20747e4cebad7397422144bb03a21f3f7682c062c4aRobert GreenwaltDNSServiceErrorType DNSServiceRegister 20847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ( 20947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceRef *sdRef, 21047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceFlags flags, 21147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint32_t interfaceIndex, 21247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const char *name, /* may be NULL */ 21347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const char *regtype, 21447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const char *domain, /* may be NULL */ 21547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const char *host, /* may be NULL */ 21647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint16_t notAnIntPort, 21747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint16_t txtLen, 21847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const void *txtRecord, /* may be NULL */ 21947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceRegisterReply callback, /* may be NULL */ 22047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt void *context /* may be NULL */ 22147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ) 22247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 22347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mStatus err = mStatus_NoError; 22447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const char *errormsg = "Unknown"; 22547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt domainlabel n; 22647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt domainname t, d, h, srv; 22747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNSIPPort port; 22847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt unsigned int size = sizeof(RDataBody); 22947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt AuthRecord *SubTypes = mDNSNULL; 23047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNSu32 NumSubTypes = 0; 23147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNS_DirectOP_Register *x; 23247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)flags; // Unused 23347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)interfaceIndex; // Unused 23447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 23547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // Check parameters 23647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (!name) name = ""; 23747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (!name[0]) n = mDNSStorage.nicelabel; 23847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt else if (!MakeDomainLabelFromLiteralString(&n, name)) { errormsg = "Bad Instance Name"; goto badparam; } 23947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (!regtype || !*regtype || !MakeDomainNameFromDNSNameString(&t, regtype)) { errormsg = "Bad Service Type"; goto badparam; } 24047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (!MakeDomainNameFromDNSNameString(&d, (domain && *domain) ? domain : "local.")) { errormsg = "Bad Domain"; goto badparam; } 24147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (!MakeDomainNameFromDNSNameString(&h, (host && *host ) ? host : "")) { errormsg = "Bad Target Host"; goto badparam; } 24247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (!ConstructServiceName(&srv, &n, &t, &d)) { errormsg = "Bad Name"; goto badparam; } 24347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt port.NotAnInteger = notAnIntPort; 24447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 24547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // Allocate memory, and handle failure 24647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (size < txtLen) 24747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt size = txtLen; 24847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x = (mDNS_DirectOP_Register *)mDNSPlatformMemAllocate(sizeof(*x) - sizeof(RDataBody) + size); 24947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (!x) { err = mStatus_NoMemoryErr; errormsg = "No memory"; goto fail; } 25047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 25147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // Set up object 25247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->disposefn = DNSServiceRegisterDispose; 25347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->callback = callback; 25447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->context = context; 25547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->autoname = (!name[0]); 25647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->autorename = mDNSfalse; 25747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->name = n; 25847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->host = h; 25947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 26047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // Do the operation 26147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt err = mDNS_RegisterService(&mDNSStorage, &x->s, 26247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt &x->name, &t, &d, // Name, type, domain 26347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt &x->host, port, // Host and port 26447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt txtRecord, txtLen, // TXT data, length 26547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt SubTypes, NumSubTypes, // Subtypes 26647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNSInterface_Any, // Interface ID 26747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt RegCallback, x, 0); // Callback, context, flags 26847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (err) { mDNSPlatformMemFree(x); errormsg = "mDNS_RegisterService"; goto fail; } 26947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 27047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // Succeeded: Wrap up and return 27147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt *sdRef = (DNSServiceRef)x; 27247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt return(mStatus_NoError); 27347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 27447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwaltbadparam: 27547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt err = mStatus_BadParamErr; 27647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwaltfail: 27747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt LogMsg("DNSServiceBrowse(\"%s\", \"%s\") failed: %s (%ld)", regtype, domain, errormsg, err); 27847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt return(err); 27947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 28047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 28147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt//************************************************************************************************************* 28247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// Add / Update / Remove records from existing Registration 28347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 28447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// Not yet implemented, so don't include in stub library 28547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// We DO include it in the actual Extension, so that if a later client compiled to use this 28647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// is run against this Extension, it will get a reasonable error code instead of just 28747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// failing to launch (Strong Link) or calling an unresolved symbol and crashing (Weak Link) 28847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#if !MDNS_BUILDINGSTUBLIBRARY 28947e4cebad7397422144bb03a21f3f7682c062c4aRobert GreenwaltDNSServiceErrorType DNSServiceAddRecord 29047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ( 29147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceRef sdRef, 29247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSRecordRef *RecordRef, 29347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceFlags flags, 29447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint16_t rrtype, 29547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint16_t rdlen, 29647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const void *rdata, 29747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint32_t ttl 29847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ) 29947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 30047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)sdRef; // Unused 30147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)RecordRef; // Unused 30247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)flags; // Unused 30347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)rrtype; // Unused 30447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)rdlen; // Unused 30547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)rdata; // Unused 30647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)ttl; // Unused 30747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt return(kDNSServiceErr_Unsupported); 30847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 30947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 31047e4cebad7397422144bb03a21f3f7682c062c4aRobert GreenwaltDNSServiceErrorType DNSServiceUpdateRecord 31147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ( 31247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceRef sdRef, 31347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSRecordRef RecordRef, /* may be NULL */ 31447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceFlags flags, 31547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint16_t rdlen, 31647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const void *rdata, 31747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint32_t ttl 31847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ) 31947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 32047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)sdRef; // Unused 32147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)RecordRef; // Unused 32247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)flags; // Unused 32347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)rdlen; // Unused 32447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)rdata; // Unused 32547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)ttl; // Unused 32647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt return(kDNSServiceErr_Unsupported); 32747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 32847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 32947e4cebad7397422144bb03a21f3f7682c062c4aRobert GreenwaltDNSServiceErrorType DNSServiceRemoveRecord 33047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ( 33147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceRef sdRef, 33247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSRecordRef RecordRef, 33347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceFlags flags 33447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ) 33547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 33647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)sdRef; // Unused 33747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)RecordRef; // Unused 33847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)flags; // Unused 33947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt return(kDNSServiceErr_Unsupported); 34047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 34147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#endif 34247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 34347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt//************************************************************************************************************* 34447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// Browse for services 34547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 34647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwaltstatic void DNSServiceBrowseDispose(mDNS_DirectOP *op) 34747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 34847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNS_DirectOP_Browse *x = (mDNS_DirectOP_Browse*)op; 34947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt //LogMsg("DNSServiceBrowseDispose"); 35047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNS_StopBrowse(&mDNSStorage, &x->q); 35147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNSPlatformMemFree(x); 35247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 35347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 35447e4cebad7397422144bb03a21f3f7682c062c4aRobert GreenwaltmDNSlocal void FoundInstance(mDNS *const m, DNSQuestion *question, const ResourceRecord *const answer, QC_result AddRecord) 35547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 35647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceFlags flags = AddRecord ? kDNSServiceFlagsAdd : (DNSServiceFlags)0; 35747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt domainlabel name; 35847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt domainname type, domain; 35947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt char cname[MAX_DOMAIN_LABEL+1]; // Unescaped name: up to 63 bytes plus C-string terminating NULL. 36047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt char ctype[MAX_ESCAPED_DOMAIN_NAME]; 36147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt char cdom [MAX_ESCAPED_DOMAIN_NAME]; 36247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNS_DirectOP_Browse *x = (mDNS_DirectOP_Browse*)question->QuestionContext; 36347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)m; // Unused 36447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 36547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (answer->rrtype != kDNSType_PTR) 36647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { LogMsg("FoundInstance: Should not be called with rrtype %d (not a PTR record)", answer->rrtype); return; } 36747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 36847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (!DeconstructServiceName(&answer->rdata->u.name, &name, &type, &domain)) 36947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 37047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt LogMsg("FoundInstance: %##s PTR %##s received from network is not valid DNS-SD service pointer", 37147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt answer->name->c, answer->rdata->u.name.c); 37247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt return; 37347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 37447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 37547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ConvertDomainLabelToCString_unescaped(&name, cname); 37647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ConvertDomainNameToCString(&type, ctype); 37747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ConvertDomainNameToCString(&domain, cdom); 37847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (x->callback) 37947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->callback((DNSServiceRef)x, flags, 0, 0, cname, ctype, cdom, x->context); 38047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 38147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 38247e4cebad7397422144bb03a21f3f7682c062c4aRobert GreenwaltDNSServiceErrorType DNSServiceBrowse 38347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ( 38447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceRef *sdRef, 38547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceFlags flags, 38647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint32_t interfaceIndex, 38747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const char *regtype, 38847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const char *domain, /* may be NULL */ 38947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceBrowseReply callback, 39047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt void *context /* may be NULL */ 39147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ) 39247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 39347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mStatus err = mStatus_NoError; 39447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const char *errormsg = "Unknown"; 39547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt domainname t, d; 39647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNS_DirectOP_Browse *x; 39747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)flags; // Unused 39847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)interfaceIndex; // Unused 39947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 40047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // Check parameters 40147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (!regtype[0] || !MakeDomainNameFromDNSNameString(&t, regtype)) { errormsg = "Illegal regtype"; goto badparam; } 40247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (!MakeDomainNameFromDNSNameString(&d, *domain ? domain : "local.")) { errormsg = "Illegal domain"; goto badparam; } 40347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 40447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // Allocate memory, and handle failure 40547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x = (mDNS_DirectOP_Browse *)mDNSPlatformMemAllocate(sizeof(*x)); 40647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (!x) { err = mStatus_NoMemoryErr; errormsg = "No memory"; goto fail; } 40747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 40847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // Set up object 40947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->disposefn = DNSServiceBrowseDispose; 41047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->callback = callback; 41147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->context = context; 41247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->q.QuestionContext = x; 41347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 41447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // Do the operation 41547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt err = mDNS_StartBrowse(&mDNSStorage, &x->q, &t, &d, mDNSInterface_Any, (flags & kDNSServiceFlagsForceMulticast) != 0, FoundInstance, x); 41647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (err) { mDNSPlatformMemFree(x); errormsg = "mDNS_StartBrowse"; goto fail; } 41747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 41847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // Succeeded: Wrap up and return 41947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt *sdRef = (DNSServiceRef)x; 42047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt return(mStatus_NoError); 42147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 42247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwaltbadparam: 42347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt err = mStatus_BadParamErr; 42447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwaltfail: 42547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt LogMsg("DNSServiceBrowse(\"%s\", \"%s\") failed: %s (%ld)", regtype, domain, errormsg, err); 42647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt return(err); 42747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 42847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 42947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt//************************************************************************************************************* 43047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// Resolve Service Info 43147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 43247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwaltstatic void DNSServiceResolveDispose(mDNS_DirectOP *op) 43347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 43447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNS_DirectOP_Resolve *x = (mDNS_DirectOP_Resolve*)op; 43547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (x->qSRV.ThisQInterval >= 0) mDNS_StopQuery(&mDNSStorage, &x->qSRV); 43647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (x->qTXT.ThisQInterval >= 0) mDNS_StopQuery(&mDNSStorage, &x->qTXT); 43747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNSPlatformMemFree(x); 43847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 43947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 44047e4cebad7397422144bb03a21f3f7682c062c4aRobert GreenwaltmDNSlocal void FoundServiceInfo(mDNS *const m, DNSQuestion *question, const ResourceRecord *const answer, QC_result AddRecord) 44147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 44247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNS_DirectOP_Resolve *x = (mDNS_DirectOP_Resolve*)question->QuestionContext; 44347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)m; // Unused 44447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (!AddRecord) 44547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 44647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (answer->rrtype == kDNSType_SRV && x->SRV == answer) x->SRV = mDNSNULL; 44747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (answer->rrtype == kDNSType_TXT && x->TXT == answer) x->TXT = mDNSNULL; 44847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 44947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt else 45047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 45147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (answer->rrtype == kDNSType_SRV) x->SRV = answer; 45247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (answer->rrtype == kDNSType_TXT) x->TXT = answer; 45347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (x->SRV && x->TXT && x->callback) 45447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 45547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt char fullname[MAX_ESCAPED_DOMAIN_NAME], targethost[MAX_ESCAPED_DOMAIN_NAME]; 45647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ConvertDomainNameToCString(answer->name, fullname); 45747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ConvertDomainNameToCString(&x->SRV->rdata->u.srv.target, targethost); 45847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->callback((DNSServiceRef)x, 0, 0, kDNSServiceErr_NoError, fullname, targethost, 45947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->SRV->rdata->u.srv.port.NotAnInteger, x->TXT->rdlength, (unsigned char*)x->TXT->rdata->u.txt.c, x->context); 46047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 46147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 46247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 46347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 46447e4cebad7397422144bb03a21f3f7682c062c4aRobert GreenwaltDNSServiceErrorType DNSServiceResolve 46547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ( 46647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceRef *sdRef, 46747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceFlags flags, 46847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint32_t interfaceIndex, 46947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const char *name, 47047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const char *regtype, 47147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const char *domain, 47247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceResolveReply callback, 47347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt void *context /* may be NULL */ 47447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ) 47547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 47647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mStatus err = mStatus_NoError; 47747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const char *errormsg = "Unknown"; 47847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt domainlabel n; 47947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt domainname t, d, srv; 48047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNS_DirectOP_Resolve *x; 48147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 48247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)flags; // Unused 48347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)interfaceIndex; // Unused 48447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 48547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // Check parameters 48647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (!name[0] || !MakeDomainLabelFromLiteralString(&n, name )) { errormsg = "Bad Instance Name"; goto badparam; } 48747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (!regtype[0] || !MakeDomainNameFromDNSNameString(&t, regtype)) { errormsg = "Bad Service Type"; goto badparam; } 48847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (!domain[0] || !MakeDomainNameFromDNSNameString(&d, domain )) { errormsg = "Bad Domain"; goto badparam; } 48947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (!ConstructServiceName(&srv, &n, &t, &d)) { errormsg = "Bad Name"; goto badparam; } 49047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 49147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // Allocate memory, and handle failure 49247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x = (mDNS_DirectOP_Resolve *)mDNSPlatformMemAllocate(sizeof(*x)); 49347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (!x) { err = mStatus_NoMemoryErr; errormsg = "No memory"; goto fail; } 49447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 49547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // Set up object 49647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->disposefn = DNSServiceResolveDispose; 49747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->callback = callback; 49847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->context = context; 49947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->SRV = mDNSNULL; 50047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->TXT = mDNSNULL; 50147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 50247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qSRV.ThisQInterval = -1; // So that DNSServiceResolveDispose() knows whether to cancel this question 50347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qSRV.InterfaceID = mDNSInterface_Any; 50447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qSRV.Target = zeroAddr; 50547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt AssignDomainName(&x->qSRV.qname, &srv); 50647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qSRV.qtype = kDNSType_SRV; 50747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qSRV.qclass = kDNSClass_IN; 50847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qSRV.LongLived = mDNSfalse; 50947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qSRV.ExpectUnique = mDNStrue; 51047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qSRV.ForceMCast = mDNSfalse; 51147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qSRV.ReturnIntermed = mDNSfalse; 51247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qSRV.SuppressUnusable = mDNSfalse; 51347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qSRV.SearchListIndex = 0; 51447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qSRV.AppendSearchDomains = 0; 51547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qSRV.RetryWithSearchDomains = mDNSfalse; 51647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qSRV.TimeoutQuestion = 0; 51747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qSRV.WakeOnResolve = 0; 51847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qSRV.qnameOrig = mDNSNULL; 51947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qSRV.QuestionCallback = FoundServiceInfo; 52047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qSRV.QuestionContext = x; 52147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 52247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qTXT.ThisQInterval = -1; // So that DNSServiceResolveDispose() knows whether to cancel this question 52347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qTXT.InterfaceID = mDNSInterface_Any; 52447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qTXT.Target = zeroAddr; 52547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt AssignDomainName(&x->qTXT.qname, &srv); 52647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qTXT.qtype = kDNSType_TXT; 52747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qTXT.qclass = kDNSClass_IN; 52847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qTXT.LongLived = mDNSfalse; 52947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qTXT.ExpectUnique = mDNStrue; 53047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qTXT.ForceMCast = mDNSfalse; 53147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qTXT.ReturnIntermed = mDNSfalse; 53247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qTXT.SuppressUnusable = mDNSfalse; 53347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qTXT.SearchListIndex = 0; 53447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qTXT.AppendSearchDomains = 0; 53547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qTXT.RetryWithSearchDomains = mDNSfalse; 53647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qTXT.TimeoutQuestion = 0; 53747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qTXT.WakeOnResolve = 0; 53847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qTXT.qnameOrig = mDNSNULL; 53947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qTXT.QuestionCallback = FoundServiceInfo; 54047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->qTXT.QuestionContext = x; 54147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 54247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt err = mDNS_StartQuery(&mDNSStorage, &x->qSRV); 54347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (err) { DNSServiceResolveDispose((mDNS_DirectOP*)x); errormsg = "mDNS_StartQuery qSRV"; goto fail; } 54447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt err = mDNS_StartQuery(&mDNSStorage, &x->qTXT); 54547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (err) { DNSServiceResolveDispose((mDNS_DirectOP*)x); errormsg = "mDNS_StartQuery qTXT"; goto fail; } 54647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 54747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // Succeeded: Wrap up and return 54847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt *sdRef = (DNSServiceRef)x; 54947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt return(mStatus_NoError); 55047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 55147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwaltbadparam: 55247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt err = mStatus_BadParamErr; 55347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwaltfail: 55447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt LogMsg("DNSServiceResolve(\"%s\", \"%s\", \"%s\") failed: %s (%ld)", name, regtype, domain, errormsg, err); 55547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt return(err); 55647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 55747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 55847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt//************************************************************************************************************* 55947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// Connection-oriented calls 56047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 56147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// Not yet implemented, so don't include in stub library 56247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// We DO include it in the actual Extension, so that if a later client compiled to use this 56347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// is run against this Extension, it will get a reasonable error code instead of just 56447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// failing to launch (Strong Link) or calling an unresolved symbol and crashing (Weak Link) 56547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#if !MDNS_BUILDINGSTUBLIBRARY 56647e4cebad7397422144bb03a21f3f7682c062c4aRobert GreenwaltDNSServiceErrorType DNSServiceCreateConnection(DNSServiceRef *sdRef) 56747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 56847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)sdRef; // Unused 56947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt return(kDNSServiceErr_Unsupported); 57047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 57147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 57247e4cebad7397422144bb03a21f3f7682c062c4aRobert GreenwaltDNSServiceErrorType DNSServiceRegisterRecord 57347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ( 57447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceRef sdRef, 57547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSRecordRef *RecordRef, 57647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceFlags flags, 57747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint32_t interfaceIndex, 57847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const char *fullname, 57947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint16_t rrtype, 58047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint16_t rrclass, 58147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint16_t rdlen, 58247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const void *rdata, 58347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint32_t ttl, 58447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceRegisterRecordReply callback, 58547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt void *context /* may be NULL */ 58647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ) 58747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 58847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)sdRef; // Unused 58947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)RecordRef; // Unused 59047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)flags; // Unused 59147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)interfaceIndex; // Unused 59247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)fullname; // Unused 59347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)rrtype; // Unused 59447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)rrclass; // Unused 59547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)rdlen; // Unused 59647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)rdata; // Unused 59747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)ttl; // Unused 59847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)callback; // Unused 59947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)context; // Unused 60047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt return(kDNSServiceErr_Unsupported); 60147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 60247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#endif 60347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 60447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt//************************************************************************************************************* 60547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// DNSServiceQueryRecord 60647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 60747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwaltstatic void DNSServiceQueryRecordDispose(mDNS_DirectOP *op) 60847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 60947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNS_DirectOP_QueryRecord *x = (mDNS_DirectOP_QueryRecord*)op; 61047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (x->q.ThisQInterval >= 0) mDNS_StopQuery(&mDNSStorage, &x->q); 61147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNSPlatformMemFree(x); 61247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 61347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 61447e4cebad7397422144bb03a21f3f7682c062c4aRobert GreenwaltmDNSlocal void DNSServiceQueryRecordResponse(mDNS *const m, DNSQuestion *question, const ResourceRecord *const answer, QC_result AddRecord) 61547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 61647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNS_DirectOP_QueryRecord *x = (mDNS_DirectOP_QueryRecord*)question->QuestionContext; 61747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt char fullname[MAX_ESCAPED_DOMAIN_NAME]; 61847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)m; // Unused 61947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ConvertDomainNameToCString(answer->name, fullname); 62047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->callback((DNSServiceRef)x, AddRecord ? kDNSServiceFlagsAdd : (DNSServiceFlags)0, 0, kDNSServiceErr_NoError, 62147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt fullname, answer->rrtype, answer->rrclass, answer->rdlength, answer->rdata->u.data, answer->rroriginalttl, x->context); 62247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 62347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 62447e4cebad7397422144bb03a21f3f7682c062c4aRobert GreenwaltDNSServiceErrorType DNSServiceQueryRecord 62547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ( 62647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceRef *sdRef, 62747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceFlags flags, 62847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint32_t interfaceIndex, 62947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const char *fullname, 63047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint16_t rrtype, 63147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint16_t rrclass, 63247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceQueryRecordReply callback, 63347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt void *context /* may be NULL */ 63447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ) 63547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 63647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mStatus err = mStatus_NoError; 63747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const char *errormsg = "Unknown"; 63847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNS_DirectOP_QueryRecord *x; 63947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 64047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)flags; // Unused 64147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)interfaceIndex; // Unused 64247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 64347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // Allocate memory, and handle failure 64447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x = (mDNS_DirectOP_QueryRecord *)mDNSPlatformMemAllocate(sizeof(*x)); 64547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (!x) { err = mStatus_NoMemoryErr; errormsg = "No memory"; goto fail; } 64647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 64747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // Set up object 64847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->disposefn = DNSServiceQueryRecordDispose; 64947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->callback = callback; 65047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->context = context; 65147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 65247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->q.ThisQInterval = -1; // So that DNSServiceResolveDispose() knows whether to cancel this question 65347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->q.InterfaceID = mDNSInterface_Any; 65447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->q.Target = zeroAddr; 65547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt MakeDomainNameFromDNSNameString(&x->q.qname, fullname); 65647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->q.qtype = rrtype; 65747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->q.qclass = rrclass; 65847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->q.LongLived = (flags & kDNSServiceFlagsLongLivedQuery) != 0; 65947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->q.ExpectUnique = mDNSfalse; 66047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->q.ForceMCast = (flags & kDNSServiceFlagsForceMulticast) != 0; 66147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->q.ReturnIntermed = (flags & kDNSServiceFlagsReturnIntermediates) != 0; 66247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->q.SuppressUnsable = (flags & kDNSServiceFlagsSuppressUnusable) != 0; 66347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->q.SearchListIndex = 0; 66447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->q.AppendSearchDomains = 0; 66547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->q.RetryWithSearchDomains = mDNSfalse; 66647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->q.WakeOnResolve = 0; 66747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->q.qnameOrig = mDNSNULL; 66847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->q.QuestionCallback = DNSServiceQueryRecordResponse; 66947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->q.QuestionContext = x; 67047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 67147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt err = mDNS_StartQuery(&mDNSStorage, &x->q); 67247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (err) { DNSServiceResolveDispose((mDNS_DirectOP*)x); errormsg = "mDNS_StartQuery"; goto fail; } 67347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 67447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // Succeeded: Wrap up and return 67547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt *sdRef = (DNSServiceRef)x; 67647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt return(mStatus_NoError); 67747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 67847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwaltfail: 67947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt LogMsg("DNSServiceQueryRecord(\"%s\", %d, %d) failed: %s (%ld)", fullname, rrtype, rrclass, errormsg, err); 68047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt return(err); 68147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 68247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 68347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt//************************************************************************************************************* 68447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// DNSServiceGetAddrInfo 68547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 68647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwaltstatic void DNSServiceGetAddrInfoDispose(mDNS_DirectOP *op) 68747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 68847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNS_DirectOP_GetAddrInfo *x = (mDNS_DirectOP_GetAddrInfo*)op; 68947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (x->aQuery) DNSServiceRefDeallocate(x->aQuery); 69047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNSPlatformMemFree(x); 69147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 69247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 69347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwaltstatic void DNSSD_API DNSServiceGetAddrInfoResponse( 69447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceRef inRef, 69547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceFlags inFlags, 69647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint32_t inInterfaceIndex, 69747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceErrorType inErrorCode, 69847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const char * inFullName, 69947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint16_t inRRType, 70047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint16_t inRRClass, 70147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint16_t inRDLen, 70247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const void * inRData, 70347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint32_t inTTL, 70447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt void * inContext ) 70547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 70647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNS_DirectOP_GetAddrInfo * x = (mDNS_DirectOP_GetAddrInfo*)inContext; 70747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt struct sockaddr_in sa4; 70847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 70947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNSPlatformMemZero(&sa4, sizeof(sa4)); 71047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (inErrorCode == kDNSServiceErr_NoError && inRRType == kDNSServiceType_A) 71147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 71247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt sa4.sin_family = AF_INET; 71347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNSPlatformMemCopy(&sa4.sin_addr.s_addr, inRData, 4); 71447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 71547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 71647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->callback((DNSServiceRef)x, inFlags, inInterfaceIndex, inErrorCode, inFullName, 71747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (const struct sockaddr *) &sa4, inTTL, x->context); 71847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 71947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 72047e4cebad7397422144bb03a21f3f7682c062c4aRobert GreenwaltDNSServiceErrorType DNSSD_API DNSServiceGetAddrInfo( 72147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceRef * outRef, 72247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceFlags inFlags, 72347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint32_t inInterfaceIndex, 72447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceProtocol inProtocol, 72547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const char * inHostName, 72647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceGetAddrInfoReply inCallback, 72747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt void * inContext ) 72847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 72947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const char * errormsg = "Unknown"; 73047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceErrorType err; 73147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt mDNS_DirectOP_GetAddrInfo * x; 73247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 73347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // Allocate memory, and handle failure 73447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x = (mDNS_DirectOP_GetAddrInfo *)mDNSPlatformMemAllocate(sizeof(*x)); 73547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (!x) { err = mStatus_NoMemoryErr; errormsg = "No memory"; goto fail; } 73647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 73747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // Set up object 73847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->disposefn = DNSServiceGetAddrInfoDispose; 73947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->callback = inCallback; 74047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->context = inContext; 74147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt x->aQuery = mDNSNULL; 74247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 74347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // Start the query. 74447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // (It would probably be more efficient to code this using mDNS_StartQuery directly, 74547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // instead of wrapping DNSServiceQueryRecord, which then unnecessarily allocates 74647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt // more memory and then just calls through to mDNS_StartQuery. -- SC June 2010) 74747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt err = DNSServiceQueryRecord(&x->aQuery, inFlags, inInterfaceIndex, inHostName, kDNSServiceType_A, 74847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt kDNSServiceClass_IN, DNSServiceGetAddrInfoResponse, x); 74947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt if (err) { DNSServiceGetAddrInfoDispose((mDNS_DirectOP*)x); errormsg = "DNSServiceQueryRecord"; goto fail; } 75047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 75147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt *outRef = (DNSServiceRef)x; 75247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt return(mStatus_NoError); 75347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 75447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwaltfail: 75547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt LogMsg("DNSServiceGetAddrInfo(\"%s\", %d) failed: %s (%ld)", inHostName, inProtocol, errormsg, err); 75647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt return(err); 75747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 75847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 75947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt//************************************************************************************************************* 76047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// DNSServiceReconfirmRecord 76147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 76247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// Not yet implemented, so don't include in stub library 76347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// We DO include it in the actual Extension, so that if a later client compiled to use this 76447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// is run against this Extension, it will get a reasonable error code instead of just 76547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// failing to launch (Strong Link) or calling an unresolved symbol and crashing (Weak Link) 76647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#if !MDNS_BUILDINGSTUBLIBRARY 76747e4cebad7397422144bb03a21f3f7682c062c4aRobert GreenwaltDNSServiceErrorType DNSSD_API DNSServiceReconfirmRecord 76847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ( 76947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt DNSServiceFlags flags, 77047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint32_t interfaceIndex, 77147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const char *fullname, 77247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint16_t rrtype, 77347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint16_t rrclass, 77447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt uint16_t rdlen, 77547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt const void *rdata 77647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ) 77747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt { 77847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)flags; // Unused 77947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)interfaceIndex; // Unused 78047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)fullname; // Unused 78147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)rrtype; // Unused 78247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)rrclass; // Unused 78347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)rdlen; // Unused 78447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt (void)rdata; // Unused 78547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt return(kDNSServiceErr_Unsupported); 78647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 78747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#endif 788