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hping2

    1: /* 
    2:  * $smu-mark$ 
    3:  * $name: sockopt.c$ 
    4:  * $author: Salvatore Sanfilippo <antirez@invece.org>$ 
    5:  * $copyright: Copyright (C) 1999 by Salvatore Sanfilippo$ 
    6:  * $license: This software is under GPL version 2 of license$ 
    7:  * $date: Fri Nov  5 11:55:49 MET 1999$ 
    8:  * $rev: 8$ 
    9:  */ 
   10: 
   11: #include <sys/types.h>
   12: #include <sys/socket.h>
   13: #include <netinet/in.h> /* IP_PROTOIP */
   14: #include <stdio.h>
   15: 
   16: void socket_broadcast(int sd)
   17: {
   18: 	const int one = 1;
   19: 
   20: 	if (setsockopt(sd, SOL_SOCKET, SO_BROADCAST,
   21: 		(char *)&one, sizeof(one)) == -1)
   22: 	{
   23: 		printf("[socket_broadcast] can't set SO_BROADCAST option\n");
   24: 		/* non fatal error */
   25: 	}
   26: }
   27: 
   28: void socket_iphdrincl(int sd)
   29: {
   30: 	const int one = 1;
   31: 
   32: 	if (setsockopt(sd, IPPROTO_IP, IP_HDRINCL,
   33: 		(char *)&one, sizeof(one)) == -1)
   34: 	{
   35: 		printf("[socket_broadcast] can't set IP_HDRINCL option\n");
   36: 		/* non fatal error */
   37: 	}
   38: }