52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
/*
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* initialize address structure
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* Copyright (C) 2000 Henry Spencer.
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*
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* This library is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Library General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/lgpl.txt>.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
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* License for more details.
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*/
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#include <sys/socket.h>
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#include "internal.h"
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#include "freeswan.h"
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/*
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- initaddr - initialize ip_address from bytes
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*/
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err_t /* NULL for success, else string literal */
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initaddr(src, srclen, af, dst)
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const unsigned char *src;
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size_t srclen;
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int af; /* address family */
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ip_address *dst;
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{
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switch (af) {
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case AF_INET:
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if (srclen != 4)
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return "IPv4 address must be exactly 4 bytes";
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dst->u.v4.sin_family = af;
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dst->u.v4.sin_port = 0; /* unused */
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memcpy((char *)&dst->u.v4.sin_addr.s_addr, src, srclen);
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break;
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case AF_INET6:
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if (srclen != 16)
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return "IPv6 address must be exactly 16 bytes";
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dst->u.v6.sin6_family = af;
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dst->u.v6.sin6_flowinfo = 0; /* unused */
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dst->u.v6.sin6_port = 0; /* unused */
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memcpy((char *)&dst->u.v6.sin6_addr, src, srclen);
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break;
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default:
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return "unknown address family in initaddr";
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break;
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}
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return NULL;
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}
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