From 1f06cbd4321babcdf505eba42e1f2077da54014a Mon Sep 17 00:00:00 2001 From: "root@ac.supos.de" Date: Mon, 14 Jul 2014 20:41:33 +0000 Subject: [PATCH] Inintial commit, function to get the primary interface FossilOrigin-Name: 27ef73383a5f6ac39becb3f0a6149149eedb6276b489ab49ab19a7ed41bfedeb --- src/capwap/sock_get_primary_if.c | 53 ++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 src/capwap/sock_get_primary_if.c diff --git a/src/capwap/sock_get_primary_if.c b/src/capwap/sock_get_primary_if.c new file mode 100644 index 00000000..a5b101dd --- /dev/null +++ b/src/capwap/sock_get_primary_if.c @@ -0,0 +1,53 @@ +/* + This file is part of libcapwap. + + libcapwap is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + libcapwap is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with Foobar. If not, see . + +*/ + +#include +#include + +#include +#include + +#include "sock.h" + + +char * sock_get_primary_if(int family) +{ + struct ifaddrs *ifap,*ifa; + char * r = 0; + + getifaddrs(&ifap); + + for (ifa = ifap; ifa != NULL; ifa = ifa->ifa_next) { + if (ifa->ifa_flags & IFF_LOOPBACK){ + continue; + } + + if (ifa->ifa_addr->sa_family != family) + continue; + + r = malloc(strlen(ifa->ifa_name)+1); + if (r) + strcpy(r,ifa->ifa_name); + break; + + } + freeifaddrs(ifap); + return r; +} + +