From 1df2a0fce427fab7754f6ac572cf68cef2e95696 Mon Sep 17 00:00:00 2001 From: Robert Millan Date: Wed, 15 Jun 2011 16:49:24 +0200 Subject: Use legacy getifaddrs() on GNU/kFreeBSD --- ifconf.h | 74 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 ifconf.h (limited to 'ifconf.h') diff --git a/ifconf.h b/ifconf.h new file mode 100644 index 0000000..6b2c83f --- /dev/null +++ b/ifconf.h @@ -0,0 +1,74 @@ +/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ + +#ifndef fooifconfhfoo +#define fooifconfhfoo + +#include + +/*** + This file is part of nss-myhostname. + + Copyright 2008-2011 Lennart Poettering + + nss-myhostname is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public License + as published by the Free Software Foundation; either version 2.1 of + the License, or (at your option) any later version. + + nss-myhostname 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with nss-myhostname; If not, see + . +***/ + +#include +#include +#include + +struct address { + unsigned char family; + uint8_t address[16]; + unsigned char scope; + int ifindex; +}; + +#define _public_ __attribute__ ((visibility("default"))) +#define _hidden_ __attribute__ ((visibility("hidden"))) + +int ifconf_acquire_addresses(struct address **_list, unsigned *_n_list) _hidden_; + +static inline size_t PROTO_ADDRESS_SIZE(int proto) { + assert(proto == AF_INET || proto == AF_INET6); + + return proto == AF_INET6 ? 16 : 4; +} + +static inline int address_compare(const void *_a, const void *_b) { + const struct address *a = _a, *b = _b; + + /* Order lowest scope first, IPv4 before IPv6, lowest interface index first */ + + if (a->scope < b->scope) + return -1; + if (a->scope > b->scope) + return 1; + + if (a->family == AF_INET && b->family == AF_INET6) + return -1; + if (a->family == AF_INET6 && b->family == AF_INET) + return 1; + + if (a->ifindex < b->ifindex) + return -1; + if (a->ifindex > b->ifindex) + return 1; + + return 0; +} + + +#endif -- cgit