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/*
* Copyright (c) 2009 The Android Open Source Project
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _SLIRP_HELPER_H
#define _SLIRP_HELPER_H
#ifdef _WIN32
# include <winsock2.h> /* for ntohl */
#endif
typedef union {
u_int32_t addr;
u_int8_t data[4];
} ipaddr_t;
/* return ip address in network order */
static __inline__ uint32_t
ip_getn( ipaddr_t ip )
{
return ip.addr;
}
/* return ip address in host order */
static __inline__ uint32_t
ip_geth( ipaddr_t ip )
{
return ntohl(ip.addr);
}
/* set ip address in network order */
static __inline__ ipaddr_t
ip_setn( uint32_t val )
{
ipaddr_t ip;
ip.addr = val;
return ip;
}
/* set ip address in host order */
static __inline__ ipaddr_t
ip_seth( uint32_t val )
{
ipaddr_t ip;
ip.addr = htonl(val);
return ip;
}
static __inline__ ipaddr_t
ip_read( const void* buf )
{
ipaddr_t ip;
memcpy(ip.data, buf, 4);
return ip;
}
static __inline__ void
ip_write( ipaddr_t ip, void* buf )
{
memcpy(buf, ip.data, 4);
}
static __inline__ uint32_t
ip_read32h( const void* buf )
{
ipaddr_t addr = ip_read(buf);
return ip_geth(addr);
}
static __inline__ void
ip_write32h( uint32_t ip, void* buf )
{
ipaddr_t addr = ip_seth(ip);
ip_write(addr, buf);
}
static __inline__ int
ip_equal( ipaddr_t ip1, ipaddr_t ip2 )
{
return ip1.addr == ip2.addr;
}
typedef union {
u_int16_t port;
u_int8_t data[2];
} port_t;
static __inline__ uint16_t
port_getn( port_t p )
{
return p.port;
}
static __inline__ uint16_t
port_geth( port_t p )
{
return ntohs(p.port);
}
static __inline__ port_t
port_setn( uint16_t val )
{
port_t p;
p.port = val;
return p;
}
static __inline__ port_t
port_seth( uint16_t val )
{
port_t p;
p.port = htons(val);
return p;
}
#endif /* _SLIRP_HELPER_H */
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