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/*
* low-level ip_address ugliness
* Copyright (C) 2000 Henry Spencer.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Library General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/lgpl.txt>.
*
* This library 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 Library General Public
* License for more details.
*
* RCSID $Id: portof.c,v 1.6 2004/04/09 18:00:36 mcr Exp $
*/
#include "internal.h"
#include "openswan.h"
/*
- portof - get the port field of an ip_address
*/
int /* network order */
portof(src)
const ip_address *src;
{
switch (src->u.v4.sin_family) {
case AF_INET:
return src->u.v4.sin_port;
break;
case AF_INET6:
return src->u.v6.sin6_port;
break;
default:
return -1; /* "can't happen" */
break;
}
}
/*
- setportof - set the port field of an ip_address
*/
void
setportof(port, dst)
int port; /* network order */
ip_address *dst;
{
switch (dst->u.v4.sin_family) {
case AF_INET:
dst->u.v4.sin_port = port;
break;
case AF_INET6:
dst->u.v6.sin6_port = port;
break;
}
}
/*
- sockaddrof - get a pointer to the sockaddr hiding inside an ip_address
*/
struct sockaddr *
sockaddrof(src)
ip_address *src;
{
switch (src->u.v4.sin_family) {
case AF_INET:
return (struct sockaddr *)&src->u.v4;
break;
case AF_INET6:
return (struct sockaddr *)&src->u.v6;
break;
default:
return NULL; /* "can't happen" */
break;
}
}
/*
- sockaddrlenof - get length of the sockaddr hiding inside an ip_address
*/
size_t /* 0 for error */
sockaddrlenof(src)
const ip_address *src;
{
switch (src->u.v4.sin_family) {
case AF_INET:
return sizeof(src->u.v4);
break;
case AF_INET6:
return sizeof(src->u.v6);
break;
default:
return 0;
break;
}
}
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