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iof-bird-daemon / lib / ip.h @ 758458be

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/*
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 *        BIRD Internet Routing Daemon -- The Internet Protocol
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 *
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 *        (c) 1998 Martin Mares <mj@ucw.cz>
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 *
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 *        Can be freely distributed and used under the terms of the GNU GPL.
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 */
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#ifndef _BIRD_IP_H_
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#define _BIRD_IP_H_
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#ifndef IPV6
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#include "ipv4.h"
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#else
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#include "ipv6.h"
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#endif
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#define ipa_in_net(x,n,p) (!ipa_nonzero(ipa_and(ipa_xor((n),(x)),ipa_mkmask(p))))
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/*
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 *        ip_classify() returns either a negative number for invalid addresses
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 *        or scope OR'ed together with address type.
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 */
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#define IADDR_INVALID                -1
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#define IADDR_SCOPE_MASK               0xfff
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#define IADDR_HOST                0x1000
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#define IADDR_BROADCAST                0x2000
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#define IADDR_MULTICAST                0x4000
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/*
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 *        Address scope
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 */
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#define SCOPE_HOST 0
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#define SCOPE_LINK 1
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#define SCOPE_SITE 2
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#define SCOPE_ORGANIZATION 3
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#define SCOPE_UNIVERSE 4
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char *ip_scope_text(unsigned);
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/*
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 *        Network prefixes
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 */
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struct prefix {
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  ip_addr addr;
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  int len;
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};
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#define ip_is_prefix(a,l) (!ipa_nonzero(ipa_and(a, ipa_not(ipa_mkmask(l)))))
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/*
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 *        Conversions between internal and string representation
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 */
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char *ip_ntop(ip_addr a, char *);
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char *ip_ntox(ip_addr a, char *);
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int ip_pton(char *a, ip_addr *o);
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#endif