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90 lines
3.2 KiB
90 lines
3.2 KiB
/*************************************************************************** |
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* Copyright (C) 04/2006 by Olaf Rempel * |
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* razzor@kopf-tisch.de * |
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* * |
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* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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* * |
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* This program is distributed in the hope that it will be useful, * |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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* GNU General Public License for more details. * |
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* * |
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* You should have received a copy of the GNU General Public License * |
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* along with this program; if not, write to the * |
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* Free Software Foundation, Inc., * |
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * |
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***************************************************************************/ |
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#include <string.h> |
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#include "mod_halflife.h" |
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#include "modhelper.h" |
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static struct game_ports port_arr[] = { |
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{ 27015, 27024, ID_HL }, |
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{ 0,0,0 } |
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}; |
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static const char scanmsg1[] = "\xff\xff\xff\xff""details"; |
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static const char scanmsg2[] = "\xff\xff\xff\xff\x54"; |
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static const char scanmsg3[] = "\xff\xff\xff\xff""TSource Engine Query"; |
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static const char reply1[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0x49, 0x07 }; // I. |
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static const char reply2[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0x6D, 0x00 }; // m |
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void ModHalfLife::scan(MultiSock* msock) |
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{ |
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ModHelper::send(msock, port_arr, scanmsg1, strlen(scanmsg1)); |
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ModHelper::send(msock, port_arr, scanmsg2, strlen(scanmsg2)); |
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ModHelper::send(msock, port_arr, scanmsg3, strlen(scanmsg3)); |
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} |
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int ModHalfLife::parse(NetPkt* pkt, GameList* glist) |
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{ |
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struct in_addr tmp; |
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int port, count, pos; |
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if (ModHelper::checkPorts(pkt, port_arr) == 0) |
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return PARSE_REJECT; |
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// eat weird connection attempts |
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if (pkt->getSize() <= 4) |
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return PARSE_ACCEPT_QUIRK; |
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/* Halflife2 answer */ |
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if (pkt->compare(0, reply1, sizeof(reply1))) { |
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glist->addGame(ID_HL2, pkt); |
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return PARSE_ACCEPT; |
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} |
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/* Halflife1 short answer */ |
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if (pkt->compare(0, reply2, sizeof(reply2))) { |
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glist->addGame(ID_HL, pkt); |
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return PARSE_ACCEPT; |
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} |
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/* Halflife1 answer (with IP:port) */ |
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if (!pkt->compare(0, reply2, sizeof(reply2) -1)) |
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return PARSE_REJECT; |
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/* try to parse server IP */ |
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pos = 5; |
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if ((count = pkt->parse_ip(pos, &tmp)) < 7) |
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return PARSE_REJECT; |
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/* parse server port */ |
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pos += count +1; |
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if ((count = pkt->parse_int(pos, &port)) == 0) |
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return PARSE_REJECT; |
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// IP is 0.0.0.0 or 127.0.0.1 -> do not use IP info |
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if (tmp.s_addr == 0x00000000 || tmp.s_addr == 0x0100007F) { |
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glist->addGame(ID_HL, pkt); |
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} else { |
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glist->addGame(ID_HL, &tmp, port); |
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} |
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return PARSE_ACCEPT; |
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}
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