/* -*- Mode: C; tab-width: 4 -*-
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*
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* Copyright (c) 2002-2004 Apple Computer, Inc. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __mDNSPlatformPosix_h
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#define __mDNSPlatformPosix_h
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#include <signal.h>
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#include <sys/time.h>
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#ifdef __ANDROID__
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#include <sys/select.h>
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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// PosixNetworkInterface is a record extension of the core NetworkInterfaceInfo
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// type that supports extra fields needed by the Posix platform.
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//
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// IMPORTANT: coreIntf must be the first field in the structure because
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// we cast between pointers to the two different types regularly.
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typedef struct PosixNetworkInterface PosixNetworkInterface;
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struct PosixNetworkInterface
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{
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NetworkInterfaceInfo coreIntf;
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const char * intfName;
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PosixNetworkInterface * aliasIntf;
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int index;
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int multicastSocket4;
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#if HAVE_IPV6
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int multicastSocket6;
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#endif
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};
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// This is a global because debugf_() needs to be able to check its value
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extern int gMDNSPlatformPosixVerboseLevel;
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struct mDNS_PlatformSupport_struct
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{
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int unicastSocket4;
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#if HAVE_IPV6
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int unicastSocket6;
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#endif
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};
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#define uDNS_SERVERS_FILE "/etc/resolv.conf"
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extern int ParseDNSServers(mDNS *m, const char *filePath);
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extern mStatus mDNSPlatformPosixRefreshInterfaceList(mDNS *const m);
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// See comment in implementation.
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// Call mDNSPosixGetFDSet before calling select(), to update the parameters
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// as may be necessary to meet the needs of the mDNSCore code.
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// The timeout pointer MUST NOT be NULL.
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// Set timeout->tv_sec to 0x3FFFFFFF if you want to have effectively no timeout
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// After calling mDNSPosixGetFDSet(), call select(nfds, &readfds, NULL, NULL, &timeout); as usual
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// After select() returns, call mDNSPosixProcessFDSet() to let mDNSCore do its work
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extern void mDNSPosixGetFDSet(mDNS *m, int *nfds, fd_set *readfds, struct timeval *timeout);
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extern void mDNSPosixProcessFDSet(mDNS *const m, fd_set *readfds);
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typedef void (*mDNSPosixEventCallback)(int fd, short filter, void *context);
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extern mStatus mDNSPosixAddFDToEventLoop( int fd, mDNSPosixEventCallback callback, void *context);
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extern mStatus mDNSPosixRemoveFDFromEventLoop( int fd);
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extern mStatus mDNSPosixListenForSignalInEventLoop( int signum);
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extern mStatus mDNSPosixIgnoreSignalInEventLoop( int signum);
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extern mStatus mDNSPosixRunEventLoopOnce( mDNS *m, const struct timeval *pTimeout, sigset_t *pSignalsReceived, mDNSBool *pDataDispatched);
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#ifdef __cplusplus
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}
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#endif
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#endif
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