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/* -*- Mode: C; tab-width: 4 -*-
*
* Copyright (c) 2002-2004 Apple Computer, Inc. All rights reserved.
*
* 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.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __mDNSPlatformPosix_h
#define __mDNSPlatformPosix_h
#include <signal.h>
#include <sys/time.h>
#ifdef __rtems__
#include <pthread.h>
#endif /* __rtems__ */
#ifdef __cplusplus
extern "C" {
#endif
// PosixNetworkInterface is a record extension of the core NetworkInterfaceInfo
// type that supports extra fields needed by the Posix platform.
//
// IMPORTANT: coreIntf must be the first field in the structure because
// we cast between pointers to the two different types regularly.
typedef struct PosixNetworkInterface PosixNetworkInterface;
struct PosixNetworkInterface
{
NetworkInterfaceInfo coreIntf; // MUST be the first element in this structure
mDNSs32 LastSeen;
const char * intfName;
PosixNetworkInterface * aliasIntf;
int index;
int multicastSocket4;
#if HAVE_IPV6
int multicastSocket6;
#endif
};
// This is a global because debugf_() needs to be able to check its value
extern int gMDNSPlatformPosixVerboseLevel;
struct mDNS_PlatformSupport_struct
{
int unicastSocket4;
#if HAVE_IPV6
int unicastSocket6;
#endif
#ifdef __rtems__
pthread_mutex_t mutex;
#endif /* __rtems__ */
};
#define uDNS_SERVERS_FILE "/etc/resolv.conf"
extern int ParseDNSServers(mDNS *m, const char *filePath);
extern mStatus mDNSPlatformPosixRefreshInterfaceList(mDNS *const m);
// See comment in implementation.
// Call mDNSPosixGetFDSet before calling select(), to update the parameters
// as may be necessary to meet the needs of the mDNSCore code.
// The timeout pointer MUST NOT be NULL.
// Set timeout->tv_sec to FutureTime if you want to have effectively no timeout
// After calling mDNSPosixGetFDSet(), call select(nfds, &readfds, NULL, NULL, &timeout); as usual
// After select() returns, call mDNSPosixProcessFDSet() to let mDNSCore do its work
extern void mDNSPosixGetFDSet(mDNS *m, int *nfds, fd_set *readfds, struct timeval *timeout);
extern void mDNSPosixProcessFDSet(mDNS *const m, fd_set *readfds);
typedef void (*mDNSPosixEventCallback)(int fd, short filter, void *context);
extern mStatus mDNSPosixAddFDToEventLoop( int fd, mDNSPosixEventCallback callback, void *context);
extern mStatus mDNSPosixRemoveFDFromEventLoop( int fd);
extern mStatus mDNSPosixListenForSignalInEventLoop( int signum);
extern mStatus mDNSPosixIgnoreSignalInEventLoop( int signum);
extern mStatus mDNSPosixRunEventLoopOnce( mDNS *m, const struct timeval *pTimeout, sigset_t *pSignalsReceived, mDNSBool *pDataDispatched);
#ifdef __cplusplus
}
#endif
#endif
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