* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
- *
+ *
* http://www.apache.org/licenses/LICENSE-2.0
- *
+ *
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* limitations under the License.
*/
-#include <stdio.h> // For printf()
-#include <string.h> // For strlen() etc.
+#include <stdio.h> // For printf()
+#include <string.h> // For strlen() etc.
-#include <Events.h> // For WaitNextEvent()
-#include <SIOUX.h> // For SIOUXHandleOneEvent()
+#include <Events.h> // For WaitNextEvent()
+#include <SIOUX.h> // For SIOUXHandleOneEvent()
-#include "mDNSEmbeddedAPI.h" // Defines the interface to the client layer above
+#include "mDNSEmbeddedAPI.h" // Defines the interface to the client layer above
-#include "mDNSMacOS9.h" // Defines the specific types needed to run mDNS on this platform
+#include "mDNSMacOS9.h" // Defines the specific types needed to run mDNS on this platform
// These don't have to be globals, but their memory does need to remain valid for as
// long as the search is going on. They are declared as globals here for simplicity.
// For a device with a user interface, and a screen, and a keyboard, the appropriate
// response may be to prompt the user and ask them to choose a new name for the service.
mDNSlocal void Callback(mDNS *const m, ServiceRecordSet *const sr, mStatus result)
- {
- switch (result)
- {
- case mStatus_NoError: debugf("Callback: %##s Name Registered", sr->RR_SRV.resrec.name.c); break;
- case mStatus_NameConflict: debugf("Callback: %##s Name Conflict", sr->RR_SRV.resrec.name.c); break;
- case mStatus_MemFree: debugf("Callback: %##s Memory Free", sr->RR_SRV.resrec.name.c); break;
- default: debugf("Callback: %##s Unknown Result %d", sr->RR_SRV.resrec.name.c, result); break;
- }
-
- if (result == mStatus_NameConflict) mDNS_RenameAndReregisterService(m, sr, mDNSNULL);
- }
+{
+ switch (result)
+ {
+ case mStatus_NoError: debugf("Callback: %##s Name Registered", sr->RR_SRV.resrec.name.c); break;
+ case mStatus_NameConflict: debugf("Callback: %##s Name Conflict", sr->RR_SRV.resrec.name.c); break;
+ case mStatus_MemFree: debugf("Callback: %##s Memory Free", sr->RR_SRV.resrec.name.c); break;
+ default: debugf("Callback: %##s Unknown Result %d", sr->RR_SRV.resrec.name.c, result); break;
+ }
+
+ if (result == mStatus_NameConflict) mDNS_RenameAndReregisterService(m, sr, mDNSNULL);
+}
// RegisterService() is a simple wrapper function which takes C string
// parameters, converts them to domainname parameters, and calls mDNS_RegisterService()
mDNSlocal void RegisterService(mDNS *m, ServiceRecordSet *recordset,
- UInt16 PortAsNumber, const char txtinfo[],
- const domainlabel *const n, const char type[], const char domain[])
- {
- domainname t;
- domainname d;
- char buffer[MAX_ESCAPED_DOMAIN_NAME];
- UInt8 txtbuffer[512];
-
- MakeDomainNameFromDNSNameString(&t, type);
- MakeDomainNameFromDNSNameString(&d, domain);
-
- if (txtinfo)
- {
- strncpy((char*)txtbuffer+1, txtinfo, sizeof(txtbuffer)-1);
- txtbuffer[0] = (UInt8)strlen(txtinfo);
- }
- else
- txtbuffer[0] = 0;
-
- mDNS_RegisterService(m, recordset,
- n, &t, &d, // Name, type, domain
- mDNSNULL, mDNSOpaque16fromIntVal(PortAsNumber),
- txtbuffer, (mDNSu16)(1+txtbuffer[0]), // TXT data, length
- mDNSNULL, 0, // Subtypes (none)
- mDNSInterface_Any, // Interface ID
- Callback, mDNSNULL, 0); // Callback, context, flags
-
- ConvertDomainNameToCString(recordset->RR_SRV.resrec.name, buffer);
- printf("Made Service Records for %s\n", buffer);
- }
+ UInt16 PortAsNumber, const char txtinfo[],
+ const domainlabel *const n, const char type[], const char domain[])
+{
+ domainname t;
+ domainname d;
+ char buffer[MAX_ESCAPED_DOMAIN_NAME];
+ UInt8 txtbuffer[512];
+
+ MakeDomainNameFromDNSNameString(&t, type);
+ MakeDomainNameFromDNSNameString(&d, domain);
+
+ if (txtinfo)
+ {
+ strncpy((char*)txtbuffer+1, txtinfo, sizeof(txtbuffer)-1);
+ txtbuffer[0] = (UInt8)strlen(txtinfo);
+ }
+ else
+ txtbuffer[0] = 0;
+
+ mDNS_RegisterService(m, recordset,
+ n, &t, &d, // Name, type, domain
+ mDNSNULL, mDNSOpaque16fromIntVal(PortAsNumber),
+ txtbuffer, (mDNSu16)(1+txtbuffer[0]), // TXT data, length
+ mDNSNULL, 0, // Subtypes (none)
+ mDNSInterface_Any, // Interface ID
+ Callback, mDNSNULL, 0); // Callback, context, flags
+
+ ConvertDomainNameToCString(recordset->RR_SRV.resrec.name, buffer);
+ printf("Made Service Records for %s\n", buffer);
+}
// RegisterFakeServiceForTesting() simulates the effect of services being registered on
// dynamically-allocated port numbers. No real service exists on that port -- this is just for testing.
mDNSlocal void RegisterFakeServiceForTesting(mDNS *m, ServiceRecordSet *recordset, const char txtinfo[],
- const char name[], const char type[], const char domain[])
- {
- static UInt16 NextPort = 0xF000;
- domainlabel n;
- MakeDomainLabelFromLiteralString(&n, name);
- RegisterService(m, recordset, NextPort++, txtinfo, &n, type, domain);
- }
+ const char name[], const char type[], const char domain[])
+{
+ static UInt16 NextPort = 0xF000;
+ domainlabel n;
+ MakeDomainLabelFromLiteralString(&n, name);
+ RegisterService(m, recordset, NextPort++, txtinfo, &n, type, domain);
+}
// Done once on startup, and then again every time our address changes
mDNSlocal OSStatus mDNSResponderTestSetup(mDNS *m)
- {
- char buffer[MAX_ESCAPED_DOMAIN_NAME];
- mDNSv4Addr ip = m->HostInterfaces->ip.ip.v4;
-
- ConvertDomainNameToCString(&m->MulticastHostname, buffer);
- printf("Name %s\n", buffer);
- printf("IP %d.%d.%d.%d\n", ip.b[0], ip.b[1], ip.b[2], ip.b[3]);
+{
+ char buffer[MAX_ESCAPED_DOMAIN_NAME];
+ mDNSv4Addr ip = m->HostInterfaces->ip.ip.v4;
+
+ ConvertDomainNameToCString(&m->MulticastHostname, buffer);
+ printf("Name %s\n", buffer);
+ printf("IP %d.%d.%d.%d\n", ip.b[0], ip.b[1], ip.b[2], ip.b[3]);
- printf("\n");
- printf("Registering Service Records\n");
- // Create example printer discovery records
- //static ServiceRecordSet p1, p2;
+ printf("\n");
+ printf("Registering Service Records\n");
+ // Create example printer discovery records
+ //static ServiceRecordSet p1, p2;
- RegisterFakeServiceForTesting(m, &p1, "", "One", "_raop._tcp.", "local.");
- RegisterFakeServiceForTesting(m, &p2, "", "Two", "_raop._tcp.", "local.");
+ RegisterFakeServiceForTesting(m, &p1, "", "One", "_raop._tcp.", "local.");
+ RegisterFakeServiceForTesting(m, &p2, "", "Two", "_raop._tcp.", "local.");
- return(kOTNoError);
- }
+ return(kOTNoError);
+}
mDNSlocal void AvailCallback(mDNS *const m, AuthRecord *const rr, mStatus result)
- {
- Boolean *b = (Boolean *)rr->RecordContext;
- (void)m; // Unused
- // Signal that our record is now free for re-use
- if (result == mStatus_MemFree) *b = false;
- }
+{
+ Boolean *b = (Boolean *)rr->RecordContext;
+ (void)m; // Unused
+ // Signal that our record is now free for re-use
+ if (result == mStatus_MemFree) *b = false;
+}
mDNSlocal OSStatus mDNSResponderSetAvail(mDNS *m, AuthRecord *rr, ServiceRecordSet *sr)
- {
- // 1. Initialize required fields of AuthRecord
- // 2. Set name of subtype PTR record to our special subtype name denoting "available" instances
- // 3. Set target of subtype PTR record to point to our SRV record (exactly the same as the main service PTR record)
- // 4. And register it
- mDNS_SetupResourceRecord(rr, mDNSNULL, mDNSInterface_Any, kDNSType_PTR, 2*3600, kDNSRecordTypeShared, AvailCallback, &availRec2Active);
- MakeDomainNameFromDNSNameString(rr->resrec.name, "a._sub._raop._tcp.local.");
- AssignDomainName(&rr->resrec.rdata->u.name, sr->RR_SRV.resrec.name);
- return(mDNS_Register(m, rr));
- }
+{
+ // 1. Initialize required fields of AuthRecord
+ // 2. Set name of subtype PTR record to our special subtype name denoting "available" instances
+ // 3. Set target of subtype PTR record to point to our SRV record (exactly the same as the main service PTR record)
+ // 4. And register it
+ mDNS_SetupResourceRecord(rr, mDNSNULL, mDNSInterface_Any, kDNSType_PTR, 2*3600, kDNSRecordTypeShared, AvailCallback, &availRec2Active);
+ MakeDomainNameFromDNSNameString(rr->resrec.name, "a._sub._raop._tcp.local.");
+ AssignDomainName(&rr->resrec.rdata->u.name, sr->RR_SRV.resrec.name);
+ return(mDNS_Register(m, rr));
+}
// YieldSomeTime() just cooperatively yields some time to other processes running on classic Mac OS
mDNSlocal Boolean YieldSomeTime(UInt32 milliseconds)
- {
- extern Boolean SIOUXQuitting;
- EventRecord e;
- WaitNextEvent(everyEvent, &e, milliseconds / 17, NULL);
- SIOUXHandleOneEvent(&e);
- return(SIOUXQuitting);
- }
+{
+ extern Boolean SIOUXQuitting;
+ EventRecord e;
+ WaitNextEvent(everyEvent, &e, milliseconds / 17, NULL);
+ SIOUXHandleOneEvent(&e);
+ return(SIOUXQuitting);
+}
int main()
- {
- mStatus err;
- Boolean DoneSetup = false;
- mDNSs32 nextAvail, nextBusy;
+{
+ mStatus err;
+ Boolean DoneSetup = false;
+ mDNSs32 nextAvail, nextBusy;
- SIOUXSettings.asktosaveonclose = false;
- SIOUXSettings.userwindowtitle = "\pMulticast DNS Responder";
+ SIOUXSettings.asktosaveonclose = false;
+ SIOUXSettings.userwindowtitle = "\pMulticast DNS Responder";
- printf("Multicast DNS Responder\n\n");
- printf("This software reports errors using MacsBug breaks,\n");
- printf("so if you don't have MacsBug installed your Mac may crash.\n\n");
- printf("******************************************************************************\n");
+ printf("Multicast DNS Responder\n\n");
+ printf("This software reports errors using MacsBug breaks,\n");
+ printf("so if you don't have MacsBug installed your Mac may crash.\n\n");
+ printf("******************************************************************************\n");
- err = InitOpenTransport();
- if (err) { debugf("InitOpenTransport failed %d", err); return(err); }
+ err = InitOpenTransport();
+ if (err) { debugf("InitOpenTransport failed %d", err); return(err); }
- err = mDNS_Init(&m, &p, mDNS_Init_NoCache, mDNS_Init_ZeroCacheSize,
- mDNS_Init_AdvertiseLocalAddresses, mDNS_Init_NoInitCallback, mDNS_Init_NoInitCallbackContext);
- if (err) return(err);
+ err = mDNS_Init(&m, &p, mDNS_Init_NoCache, mDNS_Init_ZeroCacheSize,
+ mDNS_Init_AdvertiseLocalAddresses, mDNS_Init_NoInitCallback, mDNS_Init_NoInitCallbackContext);
+ if (err) return(err);
- while (!YieldSomeTime(35))
- {
+ while (!YieldSomeTime(35))
+ {
#if MDNS_ONLYSYSTEMTASK
- // For debugging, use "#define MDNS_ONLYSYSTEMTASK 1" and call mDNSPlatformIdle() periodically.
- // For shipping code, don't define MDNS_ONLYSYSTEMTASK, and you don't need to call mDNSPlatformIdle()
- extern void mDNSPlatformIdle(mDNS *const m);
- mDNSPlatformIdle(&m); // Only needed for debugging version
+ // For debugging, use "#define MDNS_ONLYSYSTEMTASK 1" and call mDNSPlatformIdle() periodically.
+ // For shipping code, don't define MDNS_ONLYSYSTEMTASK, and you don't need to call mDNSPlatformIdle()
+ extern void mDNSPlatformIdle(mDNS *const m);
+ mDNSPlatformIdle(&m); // Only needed for debugging version
#endif
- if (m.mDNSPlatformStatus == mStatus_NoError && !DoneSetup)
- {
- DoneSetup = true;
- printf("\nListening for mDNS queries...\n");
- mDNSResponderTestSetup(&m);
- mDNSResponderSetAvail(&m, &availRec1, &p1);
- availRec2Active = false;
- nextAvail = mDNS_TimeNow(&m) + mDNSPlatformOneSecond * 10;
- nextBusy = mDNS_TimeNow(&m) + mDNSPlatformOneSecond * 15;
- }
-
- if (DoneSetup)
- {
- // We check availRec2.RecordType because we don't want to re-register this record
- // if the previous mDNS_Deregister() has not yet completed
- if (mDNS_TimeNow(&m) - nextAvail > 0 && !availRec2Active)
- {
- printf("Setting Two now available\n");
- availRec2Active = true;
- mDNSResponderSetAvail(&m, &availRec2, &p2);
- nextAvail = nextBusy + mDNSPlatformOneSecond * 10;
- }
- else if (mDNS_TimeNow(&m) - nextBusy > 0)
- {
- printf("Setting Two now busy\n");
- mDNS_Deregister(&m, &availRec2);
- nextBusy = nextAvail + mDNSPlatformOneSecond * 5;
- }
- }
- }
-
- if (p1.RR_SRV.resrec.RecordType) mDNS_DeregisterService(&m, &p1);
- if (p2.RR_SRV.resrec.RecordType) mDNS_DeregisterService(&m, &p2);
- if (availRec1.resrec.RecordType) mDNS_Deregister(&m, &availRec1);
- if (availRec2Active) mDNS_Deregister(&m, &availRec2);
-
- mDNS_Close(&m);
-
- return(0);
- }
+ if (m.mDNSPlatformStatus == mStatus_NoError && !DoneSetup)
+ {
+ DoneSetup = true;
+ printf("\nListening for mDNS queries...\n");
+ mDNSResponderTestSetup(&m);
+ mDNSResponderSetAvail(&m, &availRec1, &p1);
+ availRec2Active = false;
+ nextAvail = mDNS_TimeNow(&m) + mDNSPlatformOneSecond * 10;
+ nextBusy = mDNS_TimeNow(&m) + mDNSPlatformOneSecond * 15;
+ }
+
+ if (DoneSetup)
+ {
+ // We check availRec2.RecordType because we don't want to re-register this record
+ // if the previous mDNS_Deregister() has not yet completed
+ if (mDNS_TimeNow(&m) - nextAvail > 0 && !availRec2Active)
+ {
+ printf("Setting Two now available\n");
+ availRec2Active = true;
+ mDNSResponderSetAvail(&m, &availRec2, &p2);
+ nextAvail = nextBusy + mDNSPlatformOneSecond * 10;
+ }
+ else if (mDNS_TimeNow(&m) - nextBusy > 0)
+ {
+ printf("Setting Two now busy\n");
+ mDNS_Deregister(&m, &availRec2);
+ nextBusy = nextAvail + mDNSPlatformOneSecond * 5;
+ }
+ }
+ }
+
+ if (p1.RR_SRV.resrec.RecordType) mDNS_DeregisterService(&m, &p1);
+ if (p2.RR_SRV.resrec.RecordType) mDNS_DeregisterService(&m, &p2);
+ if (availRec1.resrec.RecordType) mDNS_Deregister(&m, &availRec1);
+ if (availRec2Active) mDNS_Deregister(&m, &availRec2);
+
+ mDNS_Close(&m);
+
+ return(0);
+}
projects / apple / mdnsresponder.git / blobdiff