74b2466e14
Let's turn resolved into a something truly useful: a fully asynchronous DNS stub resolver that subscribes to network changes. (More to come: caching, LLMNR, mDNS/DNS-SD, DNSSEC, IDN, NSS module)
46 lines
1.7 KiB
C
46 lines
1.7 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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#pragma once
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/***
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This file is part of systemd.
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Copyright 2014 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <netinet/in.h>
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#include "macro.h"
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#include "util.h"
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union in_addr_union {
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struct in_addr in;
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struct in6_addr in6;
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};
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int in_addr_null(unsigned family, union in_addr_union *u);
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int in_addr_equal(unsigned family, union in_addr_union *a, union in_addr_union *b);
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int in_addr_prefix_intersect(unsigned family, const union in_addr_union *a, unsigned aprefixlen, const union in_addr_union *b, unsigned bprefixlen);
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int in_addr_prefix_next(unsigned family, union in_addr_union *u, unsigned prefixlen);
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int in_addr_to_string(unsigned family, const union in_addr_union *u, char **ret);
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int in_addr_from_string(unsigned family, const char *s, union in_addr_union *ret);
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int in_addr_from_string_auto(const char *s, unsigned *family, union in_addr_union *ret);
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static inline size_t PROTO_ADDRESS_SIZE(int proto) {
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assert(proto == AF_INET || proto == AF_INET6);
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return proto == AF_INET6 ? 16 : 4;
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}
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