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/*
* $Id$
*
* Copyright (C) 2010 iptelorg GmbH
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/** various socket related functions.
* @file sock_ut.c
* @ingroup: core
*/
/*
* History:
* --------
* 2010-08-09 initial version (andrei)
*/
#include "sock_ut.h"
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <errno.h>
#include <arpa/inet.h>
/** get the IP TTL.
* @return ttl on success, < 0 on error
*/
int sock_get_ttl(int sock)
{
int ioptval;
unsigned int ioptvallen;
ioptvallen=sizeof(ioptval);
if (getsockopt( sock, IPPROTO_IP, IP_TTL, (void*) &ioptval,
&ioptvallen) == -1 )
{
return -1;
}
return ioptval;
}
/** set the IP TTL on a socket.
* @return ttl on success, < 0 on error
*/
int sock_set_ttl(int sock, int ttl)
{
int ioptval;
if (setsockopt( sock, IPPROTO_IP, IP_TTL, (void*) &ioptval,
sizeof(ioptval)) == -1 )
return -1;
return ioptval;
}
/* vi: set ts=4 sw=4 tw=79:ai:cindent: */
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