87 lines
2.9 KiB
C
87 lines
2.9 KiB
C
/****************************************************************************
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* include/ifaddrs.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. 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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __INCLUDE_IFADDRS_H
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#define __INCLUDE_IFADDRS_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <sys/socket.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#ifndef ifa_broadaddr
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# define ifa_broadaddr ifa_ifu.ifu_broadaddr /* Broadcast address of this interface. */
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#endif
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#ifndef ifa_dstaddr
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# define ifa_dstaddr ifa_ifu.ifu_dstaddr /* Point-to-point destination address. */
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#endif
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/****************************************************************************
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* Public Type Definitions
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****************************************************************************/
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struct ifaddrs
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{
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FAR struct ifaddrs *ifa_next;
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FAR char *ifa_name;
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unsigned int ifa_flags;
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FAR struct sockaddr *ifa_addr;
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FAR struct sockaddr *ifa_netmask;
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union
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{
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/* At most one of the following two is valid. If the IFF_BROADCAST
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* bit is set in `ifa_flags', then `ifa_broadaddr' is valid. If the
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* IFF_POINTOPOINT bit is set, then `ifa_dstaddr' is valid.
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* It is never the case that both these bits are set at once.
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*/
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FAR struct sockaddr *ifu_broadaddr; /* Broadcast address of this interface. */
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FAR struct sockaddr *ifu_dstaddr; /* Point-to-point destination address. */
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} ifa_ifu;
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FAR void *ifa_data;
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};
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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extern int getifaddrs(FAR struct ifaddrs **addrs);
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extern void freeifaddrs(FAR struct ifaddrs *addrs);
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __INCLUDE_IFADDRS_H */
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