/* * Copyright (C) 2000  Ross Combs (rocombs@cs.nmsu.edu) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. */#include "common/setup_before.h"#include <stdio.h>#ifdef HAVE_UNISTD_H# include <unistd.h>#endif#ifdef HAVE_STRING_H# include <string.h>#else# ifdef HAVE_STRINGS_H#  include <strings.h># endif# ifdef HAVE_MEMORY_H#  include <memory.h># endif#endif#include "compat/memset.h"#include <errno.h>#include "compat/strerror.h"#ifdef HAVE_SYS_TYPES_H# include <sys/types.h>#endif#ifdef HAVE_SYS_SOCKET_H# include <sys/socket.h>#endif#include "compat/socket.h"#ifdef HAVE_SYS_PARAM_H# include <sys/param.h>#endif#ifdef HAVE_NETINET_IN_H# include <netinet/in.h>#endif#include "compat/netinet_in.h"#ifdef HAVE_ARPA_INET_H# include <arpa/inet.h> /* FIXME: probably not needed... do some systems put types in here or something? */#endif#include "compat/psock.h"#include "common/packet.h"#include "common/bn_type.h"#include "common/udp_protocol.h"#include "connection.h"#include "common/addr.h"#include "common/tag.h"#include "common/hexdump.h"#include "common/eventlog.h"#include "udptest_send.h"#include "common/setup_after.h"extern FILE * hexstrm; /* from main.c */extern int udptest_send(t_connection const * c){    t_packet *         upacket;    struct sockaddr_in caddr;    unsigned int       tries,successes;        memset(&caddr,0,sizeof(caddr));    caddr.sin_family = PSOCK_AF_INET;    caddr.sin_port = htons(conn_get_game_port(c));    caddr.sin_addr.s_addr = htonl(conn_get_game_addr(c));        for (tries=successes=0; successes!=2 && tries<5; tries++)    {	if (!(upacket = packet_create(packet_class_udp)))	{            eventlog(eventlog_level_error,__FUNCTION__,"[%d] could not allocate memory for packet",conn_get_socket(c));	    continue;	}	packet_set_size(upacket,sizeof(t_server_udptest));	packet_set_type(upacket,SERVER_UDPTEST);	bn_int_tag_set(&upacket->u.server_udptest.bnettag,BNETTAG);		if (hexstrm)	{	    fprintf(hexstrm,"%d: send class=%s[0x%02x] type=%s[0x%04x] ",		    conn_get_game_socket(c),		    packet_get_class_str(upacket),(unsigned int)packet_get_class(upacket),		    packet_get_type_str(upacket,packet_dir_from_server),packet_get_type(upacket));	    fprintf(hexstrm,"from=%s ",		    addr_num_to_addr_str(conn_get_game_addr(c),conn_get_game_port(c)));	    fprintf(hexstrm,"to=%s ",		    addr_num_to_addr_str(ntohl(caddr.sin_addr.s_addr),ntohs(caddr.sin_port)));	    fprintf(hexstrm,"length=%u\n",		    packet_get_size(upacket));	    hexdump(hexstrm,packet_get_raw_data(upacket,0),packet_get_size(upacket));	}	        if (psock_sendto(conn_get_game_socket(c),			 packet_get_raw_data_const(upacket,0),packet_get_size(upacket),			 0,(struct sockaddr *)&caddr,(psock_t_socklen)sizeof(caddr))!=(int)packet_get_size(upacket))            eventlog(eventlog_level_error,__FUNCTION__,"[%d] failed to send UDPTEST to %s (attempt %u) (psock_sendto: %s)",conn_get_socket(c),addr_num_to_addr_str(ntohl(caddr.sin_addr.s_addr),conn_get_game_port(c)),tries+1,pstrerror(psock_errno()));	else	    successes++;		packet_del_ref(upacket);    }        if (successes!=2)	return -1;        return 0;}