forked from osmocom/wireshark
107 lines
2.4 KiB
C
107 lines
2.4 KiB
C
/* interface.c
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* Utility functions to get infos from interfaces
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*
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* Copyright 2016, Dario Lombardo
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include "interface.h"
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#include <string.h>
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#include <wsutil/inet_addr.h>
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#ifdef HAVE_ARPA_INET_H
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#include <arpa/inet.h>
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#endif
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#ifdef HAVE_IFADDRS_H
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#include <ifaddrs.h>
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#endif
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GSList *local_interfaces_to_list(void)
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{
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GSList *interfaces = NULL;
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#ifdef HAVE_GETIFADDRS
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struct ifaddrs *ifap;
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struct ifaddrs *ifa;
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int family;
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char ip[INET6_ADDRSTRLEN];
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if (getifaddrs(&ifap)) {
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goto end;
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}
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interfaces = g_slist_alloc();
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for (ifa = ifap; ifa != NULL; ifa = ifa->ifa_next) {
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if (ifa->ifa_addr == NULL)
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continue;
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family = ifa->ifa_addr->sa_family;
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memset(ip, 0x0, INET6_ADDRSTRLEN);
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switch (family) {
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case AF_INET:
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{
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struct sockaddr_in *addr4 = (struct sockaddr_in *)ifa->ifa_addr;
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ws_inet_ntop4(&addr4->sin_addr, ip, sizeof(ip));
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break;
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}
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case AF_INET6:
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{
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struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)ifa->ifa_addr;
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ws_inet_ntop6(&addr6->sin6_addr, ip, sizeof(ip));
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break;
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}
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default:
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break;
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}
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/* skip loopback addresses */
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if (!g_strcmp0(ip, "127.0.0.1") || !g_strcmp0(ip, "::1"))
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continue;
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if (*ip) {
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interfaces = g_slist_prepend(interfaces, g_strdup(ip));
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}
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}
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end:
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#endif /* HAVE_GETIFADDRS */
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return interfaces;
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}
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/*
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* Editor modelines - https://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 4
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* tab-width: 8
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* indent-tabs-mode: t
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* End:
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*
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* vi: set shiftwidth=4 tabstop=8 noexpandtab:
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* :indentSize=4:tabSize=8:noTabs=false:
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*/
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