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