Implement getifaddrs.
This is a BSD extension also available in glibc, but is not POSIX. Fixes #6279.
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23f1ce0756
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25
headers/compatibility/bsd/ifaddrs.h
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25
headers/compatibility/bsd/ifaddrs.h
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@ -0,0 +1,25 @@
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/*
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* Copyright 2015, Haiku, Inc. All Rights Reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _IFADDRS_H
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#define _IFADDRS_H
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struct ifaddrs {
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struct ifaddrs *ifa_next; /* Next item in list */
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const char *ifa_name; /* Name of interface */
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unsigned int ifa_flags; /* Flags from SIOCGIFFLAGS */
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struct sockaddr *ifa_addr; /* Address of interface */
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struct sockaddr *ifa_netmask; /* Netmask of interface */
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struct sockaddr *ifa_dstaddr;
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#define ifa_broadaddr ifa_dstaddr
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void *ifa_data; /* Address-specific data */
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};
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int getifaddrs(struct ifaddrs **ifap);
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void freeifaddrs(struct ifaddrs *ifa);
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#endif
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@ -1,12 +1,14 @@
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/*
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* Copyright 2006-2010, Haiku, Inc. All Rights Reserved.
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* Copyright 2006-2015, Haiku, Inc. All Rights Reserved.
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* Distributed under the terms of the MIT License.
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*
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* Authors:
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* Axel Dörfler, axeld@pinc-software.de
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* Adrien Destugues, pulkomandy@pulkomandy.tk
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*/
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#include <errno.h>
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#include <net/if.h>
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#include <sys/socket.h>
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#include <sys/sockio.h>
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@ -15,6 +17,11 @@
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#include <unistd.h>
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#include <AutoDeleter.h>
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#include <NetworkAddress.h>
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#include <NetworkInterface.h>
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#include <NetworkRoster.h>
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#include "compatibility/bsd/ifaddrs.h"
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namespace BPrivate {
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@ -141,3 +148,68 @@ if_freenameindex(struct if_nameindex *interfaceArray)
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free(interfaceArray);
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}
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int getifaddrs(struct ifaddrs **ifap)
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{
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if (ifap == NULL) {
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errno = B_BAD_VALUE;
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return -1;
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}
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BNetworkRoster& roster = BNetworkRoster::Default();
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uint32 cookie;
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struct ifaddrs* previous = NULL;
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struct ifaddrs* current = NULL;
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BNetworkInterface* interface = new BNetworkInterface();
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while (roster.GetNextInterface(&cookie, *interface) == B_OK) {
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BNetworkInterfaceAddress address;
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int32 i = 0;
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while (interface->GetAddressAt(i++, address) == B_OK) {
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current = new ifaddrs();
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// Chain this interface with the next one
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current->ifa_next = previous;
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previous = current;
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current->ifa_data = interface;
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current->ifa_name = interface->Name();
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// Points to the name in the BNetworkInterface instance, which
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// is added as ifa_data so freeifaddrs can release it.
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current->ifa_flags = address.Flags();
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current->ifa_addr = new sockaddr(address.Address().SockAddr());
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current->ifa_netmask = new sockaddr(address.Mask().SockAddr());
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current->ifa_dstaddr = new sockaddr(address.Destination().SockAddr());
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}
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interface = new BNetworkInterface();
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}
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delete interface;
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*ifap = current;
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return 0;
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}
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void freeifaddrs(struct ifaddrs *ifa)
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{
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struct ifaddrs* next;
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BNetworkInterface* interface = NULL;
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while (ifa != NULL) {
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if (ifa->ifa_data != interface) {
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interface = (BNetworkInterface*)ifa->ifa_data;
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delete interface;
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}
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delete ifa->ifa_addr;
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delete ifa->ifa_netmask;
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delete ifa->ifa_dstaddr;
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next = ifa->ifa_next;
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delete ifa;
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ifa = next;
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}
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}
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