+++ /dev/null
-/*
- * Copyright (c) 2002 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
-
-/*
- * Formatting notes:
- * This code follows the "Whitesmiths style" C indentation rules. Plenty of discussion
- * on C indentation can be found on the web, such as <http://www.kafejo.com/komp/1tbs.htm>,
- * but for the sake of brevity here I will say just this: Curly braces are not syntactially
- * part of an "if" statement; they are the beginning and ending markers of a compound statement;
- * therefore common sense dictates that if they are part of a compound statement then they
- * should be indented to the same level as everything else in that compound statement.
- * Indenting curly braces at the same level as the "if" implies that curly braces are
- * part of the "if", which is false. (This is as misleading as people who write "char* x,y;"
- * thinking that variables x and y are both of type "char*" -- and anyone who doesn't
- * understand why variable y is not of type "char*" just proves the point that poor code
- * layout leads people to unfortunate misunderstandings about how the C language really works.)
- */
-
-#include <libc.h>
-#include <arpa/nameser.h>
-#include <CoreFoundation/CoreFoundation.h>
-#include <DNSServiceDiscovery/DNSServiceDiscovery.h>
-
-//*************************************************************************************************************
-// Globals
-
-typedef union { unsigned char b[2]; unsigned short NotAnInteger; } Opaque16;
-
-static char operation;
-static dns_service_discovery_ref client = NULL;
-static char addtest = 0;
-static DNSRecordReference record;
-static char myhinfo9[11] = "\003Mac\006OS 9.2";
-static char myhinfoX[ 9] = "\003Mac\004OS X";
-static char updatetest[2] = "\001A";
-static char bigNULL[4096];
-
-//*************************************************************************************************************
-// Supporting Utility Functions
-//
-// This code takes care of:
-// 1. Extracting the mach_port_t from the dns_service_discovery_ref
-// 2. Making a CFMachPortRef from it
-// 3. Making a CFRunLoopSourceRef from that
-// 4. Adding that source to the current RunLoop
-// 5. and passing the resulting messages back to DNSServiceDiscovery_handleReply() for processing
-//
-// Code that's not based around a CFRunLoop will need its own mechanism to receive Mach messages
-// from the mDNSResponder daemon and pass them to the DNSServiceDiscovery_handleReply() routine.
-// (There is no way to automate this, because it varies depending on the application's existing
-// event handling model.)
-
-static void MyHandleMachMessage(CFMachPortRef port, void *msg, CFIndex size, void *info)
- {
- DNSServiceDiscovery_handleReply(msg);
- }
-
-static int AddDNSServiceClientToRunLoop(dns_service_discovery_ref client)
- {
- mach_port_t port = DNSServiceDiscoveryMachPort(client);
- if (!port)
- return(-1);
- else
- {
- CFMachPortContext context = { 0, 0, NULL, NULL, NULL };
- Boolean shouldFreeInfo;
- CFMachPortRef cfMachPort = CFMachPortCreateWithPort(kCFAllocatorDefault, port, MyHandleMachMessage, &context, &shouldFreeInfo);
- CFRunLoopSourceRef rls = CFMachPortCreateRunLoopSource(NULL, cfMachPort, 0);
- CFRunLoopAddSource(CFRunLoopGetCurrent(), rls, kCFRunLoopDefaultMode);
- CFRelease(rls);
- return(0);
- }
- }
-
-//*************************************************************************************************************
-// Sample callback functions for each of the operation types
-
-#define DomainMsg(X) ((X) == DNSServiceDomainEnumerationReplyAddDomain ? "Added" : \
- (X) == DNSServiceDomainEnumerationReplyAddDomainDefault ? "(Default)" : \
- (X) == DNSServiceDomainEnumerationReplyRemoveDomain ? "Removed" : "Unknown")
-
-static void regdom_reply(DNSServiceDomainEnumerationReplyResultType resultType, const char *replyDomain,
- DNSServiceDiscoveryReplyFlags flags, void *context)
- {
- printf("Recommended Registration Domain %s %s", replyDomain, DomainMsg(resultType));
- if (flags) printf(" Flags: %X", flags);
- printf("\n");
- }
-
-static void browsedom_reply(DNSServiceDomainEnumerationReplyResultType resultType, const char *replyDomain,
- DNSServiceDiscoveryReplyFlags flags, void *context)
- {
- printf("Recommended Browsing Domain %s %s", replyDomain, DomainMsg(resultType));
- if (flags) printf(" Flags: %X", flags);
- printf("\n");
- }
-
-static void browse_reply(DNSServiceBrowserReplyResultType resultType,
- const char *replyName, const char *replyType, const char *replyDomain, DNSServiceDiscoveryReplyFlags flags, void *context)
- {
- char *op = (resultType == DNSServiceBrowserReplyAddInstance) ? "Found" : "Removed";
- printf("Service \"%s\", type \"%s\", domain \"%s\" %s", replyName, replyType, replyDomain, op);
- if (flags) printf(" Flags: %X", flags);
- printf("\n");
- }
-
-static void resolve_reply(struct sockaddr *interface, struct sockaddr *address, const char *txtRecord, DNSServiceDiscoveryReplyFlags flags, void *context)
- {
- if (address->sa_family != AF_INET)
- printf("Unknown address family %d\n", address->sa_family);
- else
- {
- struct sockaddr_in *ip = (struct sockaddr_in *)address;
- union { uint32_t l; u_char b[4]; } addr = { ip->sin_addr.s_addr };
- union { uint16_t s; u_char b[2]; } port = { ip->sin_port };
- uint16_t PortAsNumber = ((uint16_t)port.b[0]) << 8 | port.b[1];
- const char *src = txtRecord;
- printf("Service can be reached at %d.%d.%d.%d:%u", addr.b[0], addr.b[1], addr.b[2], addr.b[3], PortAsNumber);
- while (*src)
- {
- char txtInfo[256];
- char *dst = txtInfo;
- const char *const lim = &txtInfo[sizeof(txtInfo)];
- while (*src && *src != 1 && dst < lim-1) *dst++ = *src++;
- *dst++ = 0;
- printf(" TXT \"%s\"", txtInfo);
- if (*src == 1) src++;
- }
- if (flags) printf(" Flags: %X", flags);
- printf("\n");
- }
- }
-
-static void myCFRunLoopTimerCallBack(CFRunLoopTimerRef timer, void *info)
- {
- (void)timer; // Parameter not used
- (void)info; // Parameter not used
-
- switch (operation)
- {
- case 'A':
- {
- switch (addtest)
- {
- case 0: printf("Adding Test HINFO record\n");
- record = DNSServiceRegistrationAddRecord(client, T_HINFO, sizeof(myhinfo9), &myhinfo9[0], 120);
- addtest = 1;
- break;
- case 1: printf("Updating Test HINFO record\n");
- DNSServiceRegistrationUpdateRecord(client, record, sizeof(myhinfoX), &myhinfoX[0], 120);
- addtest = 2;
- break;
- case 2: printf("Removing Test HINFO record\n");
- DNSServiceRegistrationRemoveRecord(client, record);
- addtest = 0;
- break;
- }
- }
- break;
-
- case 'U':
- {
- if (updatetest[1] != 'Z') updatetest[1]++;
- else updatetest[1] = 'A';
- printf("Updating Test TXT record to %c\n", updatetest[1]);
- DNSServiceRegistrationUpdateRecord(client, 0, sizeof(updatetest), &updatetest[0], 120);
- }
- break;
-
- case 'N':
- {
- printf("Adding big NULL record\n");
- DNSServiceRegistrationAddRecord(client, T_NULL, sizeof(bigNULL), &bigNULL[0], 120);
- CFRunLoopRemoveTimer(CFRunLoopGetCurrent(), timer, kCFRunLoopDefaultMode);
- }
- break;
- }
- }
-
-static void reg_reply(DNSServiceRegistrationReplyErrorType errorCode, void *context)
- {
- printf("Got a reply from the server: ");
- switch (errorCode)
- {
- case kDNSServiceDiscoveryNoError: printf("Name now registered and active\n"); break;
- case kDNSServiceDiscoveryNameConflict: printf("Name in use, please choose another\n"); exit(-1);
- default: printf("Error %d\n", errorCode); return;
- }
-
- if (operation == 'A' || operation == 'U' || operation == 'N')
- {
- CFRunLoopTimerContext myCFRunLoopTimerContext = { 0, 0, NULL, NULL, NULL };
- CFRunLoopTimerRef timer = CFRunLoopTimerCreate(kCFAllocatorDefault,
- CFAbsoluteTimeGetCurrent() + 5.0, 5.0, 0, 1, // Next fire time, periodic interval, flags, and order
- myCFRunLoopTimerCallBack, &myCFRunLoopTimerContext);
- CFRunLoopAddTimer(CFRunLoopGetCurrent(), timer, kCFRunLoopDefaultMode);
- }
- }
-
-//*************************************************************************************************************
-// The main test function
-
-int main(int argc, char **argv)
- {
- char *dom;
-
- if (argc < 2) goto Fail; // Minimum command line is the command name and one argument
- operation = getopt(argc, (char * const *)argv, "EFBLRAUNTM");
- if (operation == -1) goto Fail;
-
- switch (operation)
- {
- case 'E': printf("Looking for recommended registration domains:\n");
- client = DNSServiceDomainEnumerationCreate(1, regdom_reply, nil);
- break;
-
- case 'F': printf("Looking for recommended browsing domains:\n");
- client = DNSServiceDomainEnumerationCreate(0, browsedom_reply, nil);
- break;
-
- case 'B': if (argc < optind+1) goto Fail;
- dom = (argc < optind+2) ? "" : argv[optind+1];
- if (dom[0] == '.' && dom[1] == 0) dom[0] = 0; // We allow '.' on the command line as a synonym for empty string
- printf("Browsing for %s%s\n", argv[optind+0], dom);
- client = DNSServiceBrowserCreate(argv[optind+0], dom, browse_reply, nil);
- break;
-
- case 'L': if (argc < optind+2) goto Fail;
- dom = (argc < optind+3) ? "" : argv[optind+2];
- if (dom[0] == '.' && dom[1] == 0) dom[0] = 0; // We allow '.' on the command line as a synonym for empty string
- printf("Lookup %s.%s%s\n", argv[optind+0], argv[optind+1], dom);
- client = DNSServiceResolverResolve(argv[optind+0], argv[optind+1], dom, resolve_reply, nil);
- break;
-
- case 'R': if (argc < optind+4) goto Fail;
- {
- char *nam = argv[optind+0];
- char *typ = argv[optind+1];
- char *dom = argv[optind+2];
- uint16_t PortAsNumber = atoi(argv[optind+3]);
- Opaque16 registerPort = { { PortAsNumber >> 8, PortAsNumber & 0xFF } };
- char *txt = (argc > optind+4) ? argv[optind+4] : "";
- if (nam[0] == '.' && nam[1] == 0) nam[0] = 0; // We allow '.' on the command line as a synonym for empty string
- if (dom[0] == '.' && dom[1] == 0) dom[0] = 0; // We allow '.' on the command line as a synonym for empty string
- printf("Registering Service %s.%s%s port %s %s\n", nam, typ, dom, argv[optind+3], txt);
- client = DNSServiceRegistrationCreate(nam, typ, dom, registerPort.NotAnInteger, txt, reg_reply, nil);
- break;
- }
-
- case 'A':
- case 'U':
- case 'N': {
- Opaque16 registerPort = { { 0x12, 0x34 } };
- static const char TXT[] = "First String\001Second String\001Third String";
- printf("Registering Service Test._testupdate._tcp.local.\n");
- client = DNSServiceRegistrationCreate("Test", "_testupdate._tcp.", "", registerPort.NotAnInteger, TXT, reg_reply, nil);
- break;
- }
-
- case 'T': {
- Opaque16 registerPort = { { 0x23, 0x45 } };
- char TXT[512];
- int i;
- for (i=0; i<sizeof(TXT)-1; i++)
- if ((i & 0x1F) == 0x1F) TXT[i] = 1; else TXT[i] = 'A' + (i >> 5);
- TXT[i] = 0;
- printf("Registering Service Test._testlargetxt._tcp.local.\n");
- client = DNSServiceRegistrationCreate("Test", "_testlargetxt._tcp.", "", registerPort.NotAnInteger, TXT, reg_reply, nil);
- break;
- }
-
- case 'M': {
- Opaque16 registerPort = { { 0x23, 0x45 } };
- static const char TXT1[] = "First String\001Second String\001Third String";
- static const char TXT2[] = "\x0D" "Fourth String" "\x0C" "Fifth String" "\x0C" "Sixth String";
- printf("Registering Service Test._testdualtxt._tcp.local.\n");
- client = DNSServiceRegistrationCreate("Test", "_testdualtxt._tcp.", "", registerPort.NotAnInteger, TXT1, reg_reply, nil);
- record = DNSServiceRegistrationAddRecord(client, T_TXT, sizeof(TXT2), TXT2, 120);
- break;
- }
-
- default: goto Exit;
- }
-
- if (!client) { fprintf(stderr, "DNSService call failed\n"); return (-1); }
- if (AddDNSServiceClientToRunLoop(client) != 0) { fprintf(stderr, "AddDNSServiceClientToRunLoop failed\n"); return (-1); }
- printf("Talking to DNS SD Daemon at Mach port %d\n", DNSServiceDiscoveryMachPort(client));
- CFRunLoopRun();
-
- // Be sure to deallocate the dns_service_discovery_ref when you're finished
- // Note: What other cleanup has to be done here?
- // We should probably invalidate, remove and release our CFRunLoopSourceRef?
- DNSServiceDiscoveryDeallocate(client);
-
-Exit:
- return 0;
-
-Fail:
- fprintf(stderr, "%s -E (Enumerate recommended registration domains)\n", argv[0]);
- fprintf(stderr, "%s -F (Enumerate recommended browsing domains)\n", argv[0]);
- fprintf(stderr, "%s -B <Type> <Domain> (Browse for services instances)\n", argv[0]);
- fprintf(stderr, "%s -L <Name> <Type> <Domain> (Look up a service instance)\n", argv[0]);
- fprintf(stderr, "%s -R <Name> <Type> <Domain> <Port> <TXT> (Register a service)\n", argv[0]);
- fprintf(stderr, "%s -A (Test Adding/Updating/Deleting a record)\n", argv[0]);
- fprintf(stderr, "%s -U (Test updating a TXT record)\n", argv[0]);
- fprintf(stderr, "%s -N (Test adding a large NULL record)\n", argv[0]);
- fprintf(stderr, "%s -T (Test creating a large TXT record)\n", argv[0]);
- fprintf(stderr, "%s -M (Test creating a registration with multiple TXT records)\n", argv[0]);
- return 0;
- }