1*6e91bba0SGirish Moodalbail /* 2*6e91bba0SGirish Moodalbail * CDDL HEADER START 3*6e91bba0SGirish Moodalbail * 4*6e91bba0SGirish Moodalbail * The contents of this file are subject to the terms of the 5*6e91bba0SGirish Moodalbail * Common Development and Distribution License (the "License"). 6*6e91bba0SGirish Moodalbail * You may not use this file except in compliance with the License. 7*6e91bba0SGirish Moodalbail * 8*6e91bba0SGirish Moodalbail * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9*6e91bba0SGirish Moodalbail * or http://www.opensolaris.org/os/licensing. 10*6e91bba0SGirish Moodalbail * See the License for the specific language governing permissions 11*6e91bba0SGirish Moodalbail * and limitations under the License. 12*6e91bba0SGirish Moodalbail * 13*6e91bba0SGirish Moodalbail * When distributing Covered Code, include this CDDL HEADER in each 14*6e91bba0SGirish Moodalbail * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15*6e91bba0SGirish Moodalbail * If applicable, add the following below this CDDL HEADER, with the 16*6e91bba0SGirish Moodalbail * fields enclosed by brackets "[]" replaced with your own identifying 17*6e91bba0SGirish Moodalbail * information: Portions Copyright [yyyy] [name of copyright owner] 18*6e91bba0SGirish Moodalbail * 19*6e91bba0SGirish Moodalbail * CDDL HEADER END 20*6e91bba0SGirish Moodalbail */ 21*6e91bba0SGirish Moodalbail /* 22*6e91bba0SGirish Moodalbail * Copyright 2010 Sun Microsystems, Inc. All rights reserved. 23*6e91bba0SGirish Moodalbail * Use is subject to license terms. 24*6e91bba0SGirish Moodalbail */ 25*6e91bba0SGirish Moodalbail #ifndef _IFADDRS_H 26*6e91bba0SGirish Moodalbail #define _IFADDRS_H 27*6e91bba0SGirish Moodalbail 28*6e91bba0SGirish Moodalbail #ifdef __cplusplus 29*6e91bba0SGirish Moodalbail extern "C" { 30*6e91bba0SGirish Moodalbail #endif 31*6e91bba0SGirish Moodalbail 32*6e91bba0SGirish Moodalbail #include <sys/types.h> 33*6e91bba0SGirish Moodalbail 34*6e91bba0SGirish Moodalbail /* 35*6e91bba0SGirish Moodalbail * The `getifaddrs' function generates a linked list of these structures. 36*6e91bba0SGirish Moodalbail * Each element of the list describes one network interface. 37*6e91bba0SGirish Moodalbail */ 38*6e91bba0SGirish Moodalbail #if defined(_INT64_TYPE) 39*6e91bba0SGirish Moodalbail struct ifaddrs { 40*6e91bba0SGirish Moodalbail struct ifaddrs *ifa_next; /* Pointer to the next structure. */ 41*6e91bba0SGirish Moodalbail char *ifa_name; /* Name of this network interface. */ 42*6e91bba0SGirish Moodalbail uint64_t ifa_flags; /* Flags as from SIOCGLIFFLAGS ioctl. */ 43*6e91bba0SGirish Moodalbail struct sockaddr_storage *ifa_addr; 44*6e91bba0SGirish Moodalbail /* Network address of this interface. */ 45*6e91bba0SGirish Moodalbail struct sockaddr_storage *ifa_netmask; 46*6e91bba0SGirish Moodalbail /* Netmask of this interface. */ 47*6e91bba0SGirish Moodalbail union { 48*6e91bba0SGirish Moodalbail /* 49*6e91bba0SGirish Moodalbail * At most one of the following two is valid. If the 50*6e91bba0SGirish Moodalbail * IFF_BROADCAST bit is set in `ifa_flags', then 51*6e91bba0SGirish Moodalbail * `ifa_broadaddr' is valid. If the IFF_POINTOPOINT bit is 52*6e91bba0SGirish Moodalbail * set, then `ifa_dstaddr' is valid. It is never the case that 53*6e91bba0SGirish Moodalbail * both these bits are set at once. 54*6e91bba0SGirish Moodalbail */ 55*6e91bba0SGirish Moodalbail struct sockaddr_storage *ifu_broadaddr; 56*6e91bba0SGirish Moodalbail struct sockaddr_storage *ifu_dstaddr; 57*6e91bba0SGirish Moodalbail } ifa_ifu; 58*6e91bba0SGirish Moodalbail void *ifa_data; /* Address-specific data (may be unused). */ 59*6e91bba0SGirish Moodalbail /* 60*6e91bba0SGirish Moodalbail * This may have been defined in <net/if.h>. 61*6e91bba0SGirish Moodalbail */ 62*6e91bba0SGirish Moodalbail #ifndef ifa_broadaddr 63*6e91bba0SGirish Moodalbail #define ifa_broadaddr ifa_ifu.ifu_broadaddr /* broadcast address */ 64*6e91bba0SGirish Moodalbail #endif 65*6e91bba0SGirish Moodalbail #ifndef ifa_dstaddr 66*6e91bba0SGirish Moodalbail #define ifa_dstaddr ifa_ifu.ifu_dstaddr /* other end of p-to-p link */ 67*6e91bba0SGirish Moodalbail #endif 68*6e91bba0SGirish Moodalbail }; 69*6e91bba0SGirish Moodalbail #endif 70*6e91bba0SGirish Moodalbail 71*6e91bba0SGirish Moodalbail /* 72*6e91bba0SGirish Moodalbail * Create a linked list of `struct ifaddrs' structures, one for each 73*6e91bba0SGirish Moodalbail * network interface on the host machine. If successful, store the 74*6e91bba0SGirish Moodalbail * list in *ifap and return 0. On errors, return -1 and set `errno'. 75*6e91bba0SGirish Moodalbail * 76*6e91bba0SGirish Moodalbail * The storage returned in *ifap is allocated dynamically and can 77*6e91bba0SGirish Moodalbail * only be properly freed by passing it to `freeifaddrs'. 78*6e91bba0SGirish Moodalbail */ 79*6e91bba0SGirish Moodalbail extern int getifaddrs(struct ifaddrs **); 80*6e91bba0SGirish Moodalbail 81*6e91bba0SGirish Moodalbail /* Reclaim the storage allocated by a previous `getifaddrs' call. */ 82*6e91bba0SGirish Moodalbail extern void freeifaddrs(struct ifaddrs *); 83*6e91bba0SGirish Moodalbail 84*6e91bba0SGirish Moodalbail 85*6e91bba0SGirish Moodalbail #ifdef __cplusplus 86*6e91bba0SGirish Moodalbail } 87*6e91bba0SGirish Moodalbail #endif 88*6e91bba0SGirish Moodalbail 89*6e91bba0SGirish Moodalbail #endif /* _IFADDRS_H */ 90