1 | /* |
1 | /* |
2 | * This file is part of Crossfire TRT, the Multiplayer Online Role Playing Game. |
2 | * This file is part of Crossfire TRT, the Roguelike Realtime MORPG. |
3 | * |
3 | * |
4 | * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team |
4 | * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team |
5 | * Copyright (©) 1992,2007 Frank Tore Johansen |
5 | * Copyright (©) 1992,2007 Frank Tore Johansen |
6 | * |
6 | * |
7 | * Crossfire TRT is free software; you can redistribute it and/or modify it |
7 | * Crossfire TRT is free software: you can redistribute it and/or modify |
8 | * under the terms of the GNU General Public License as published by the Free |
8 | * it under the terms of the GNU General Public License as published by |
9 | * Software Foundation; either version 2 of the License, or (at your option) |
9 | * the Free Software Foundation, either version 3 of the License, or |
10 | * any later version. |
10 | * (at your option) any later version. |
11 | * |
11 | * |
12 | * This program is distributed in the hope that it will be useful, but |
12 | * This program is distributed in the hope that it will be useful, |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * for more details. |
15 | * GNU General Public License for more details. |
16 | * |
16 | * |
17 | * You should have received a copy of the GNU General Public License along |
17 | * You should have received a copy of the GNU General Public License |
18 | * with Crossfire TRT; if not, write to the Free Software Foundation, Inc. 51 |
18 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
19 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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20 | * |
19 | * |
21 | * The authors can be reached via e-mail to <crossfire@schmorp.de> |
20 | * The authors can be reached via e-mail to <crossfire@schmorp.de> |
22 | */ |
21 | */ |
23 | |
22 | |
24 | using namespace std; |
23 | using namespace std; |
… | |
… | |
32 | # include <sys/socket.h> |
31 | # include <sys/socket.h> |
33 | # include <netinet/in.h> |
32 | # include <netinet/in.h> |
34 | # include <netinet/tcp.h> |
33 | # include <netinet/tcp.h> |
35 | #endif |
34 | #endif |
36 | |
35 | |
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36 | #define HAVE_SIOCOUTQ 1 //TODO configure.ac support |
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37 | #if HAVE_SIOCOUTQ |
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38 | # include <linux/sockios.h> |
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39 | #endif |
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40 | |
37 | // disconnect a socket after this many seconds without an ack |
41 | // disconnect a socket after this many seconds without an ack |
38 | #define SOCKET_TIMEOUT 8. |
42 | #define SOCKET_TIMEOUT 8. |
39 | |
43 | |
40 | // force a packet when idle for more than this many seconds, |
44 | // force a packet when idle for more than this many seconds, |
41 | // forcing an ack regularly. |
45 | // forcing an ack regularly. |
… | |
… | |
45 | client::flush () |
49 | client::flush () |
46 | { |
50 | { |
47 | if (destroyed ()) |
51 | if (destroyed ()) |
48 | return; |
52 | return; |
49 | |
53 | |
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54 | # if HAVE_SIOCOUTQ |
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55 | { |
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56 | int value; |
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57 | |
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58 | if (!ioctl (fd, SIOCOUTQ, &value)) |
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59 | outq = value; |
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60 | } |
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61 | # endif |
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62 | |
50 | #if HAVE_TCP_INFO |
63 | #if HAVE_TCP_INFO |
51 | // check about once per second, spread evenly over all clients |
64 | // check about once per second, spread evenly over all clients |
52 | if (!((pticks + fd) & 7)) |
65 | // do this only when player is active |
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66 | if (!((pticks + fd) & 7) && pl && pl->active) |
53 | { |
67 | { |
54 | // check time of last ack, and, if too old, kill connection |
68 | // check time of last ack, and, if too old, kill connection |
55 | struct tcp_info tcpi; |
69 | struct tcp_info tcpi; |
56 | socklen_t len = sizeof (tcpi); |
70 | socklen_t len = sizeof (tcpi); |
57 | |
71 | |
… | |
… | |
84 | */ |
98 | */ |
85 | |
99 | |
86 | // write a nop to the socket at least every IDLE_NOP seconds. |
100 | // write a nop to the socket at least every IDLE_NOP seconds. |
87 | if (!outputbuffer.len) |
101 | if (!outputbuffer.len) |
88 | { |
102 | { |
89 | if (last_send + IDLE_PING <= NOW) |
103 | if (last_send + IDLE_PING <= NOW && pl && pl->active) |
90 | { |
104 | { |
91 | // this is a bit ugly, but map1/map1a seem to be the only |
105 | // this is a bit ugly, but map1/map1a seem to be the only |
92 | // nop'able commands and they are quite small. |
106 | // nop'able commands and they are quite small. |
93 | packet sl (mapmode == Map1Cmd ? "map1" : "map1a"); |
107 | packet sl (mapmode == Map1Cmd ? "map1" : "map1a"); |
94 | send_packet (sl); |
108 | send_packet (sl); |
… | |
… | |
510 | va_end (ap); |
524 | va_end (ap); |
511 | |
525 | |
512 | send_packet (sl); |
526 | send_packet (sl); |
513 | } |
527 | } |
514 | |
528 | |
515 | void |
529 | // returns true when the message needs special (read: perl) treatment |
516 | client::send_drawinfo (const char *msg, int flags) |
530 | static bool |
517 | { |
531 | msg_is_special (const char *msg) |
518 | send_packet_printf ("drawinfo %d %s", flags, msg); |
532 | { |
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533 | return msg [strcspn (msg, "<[&\n")]; |
519 | } |
534 | } |
520 | |
535 | |
521 | void |
536 | void |
522 | client::send_msg (int color, const char *type, const char *msg) |
537 | client::send_msg (int color, const char *type, const char *msg) |
523 | { |
538 | { |
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539 | if (msg_is_special (msg)) |
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540 | cfperl_send_msg (this, color, type, msg); |
524 | if (can_msg) |
541 | else if (can_msg) |
525 | send_packet_printf ("msg %d %s %s", color, type, msg); |
542 | send_packet_printf ("msg %d %s %s", color, type, msg); |
526 | else if (color < 0) |
543 | else if (color < 0) |
527 | return; // client cannot handle this |
544 | return; // client cannot handle this |
528 | else if (strchr (msg, '<') || strchr (msg, '&')) |
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529 | { |
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530 | //TODO: should escape/modify to old syntax |
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531 | send_packet_printf ("drawinfo %d %s", color, msg); |
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532 | } |
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533 | else |
545 | else |
534 | send_packet_printf ("drawinfo %d %s", color, msg); |
546 | send_packet_printf ("drawinfo %d %s", color, msg); |
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547 | } |
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548 | |
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549 | void |
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550 | client::send_drawinfo (const char *msg, int flags) |
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551 | { |
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552 | send_msg (flags, "log", msg); |
535 | } |
553 | } |
536 | |
554 | |
537 | /*********************************************************************** |
555 | /*********************************************************************** |
538 | * |
556 | * |
539 | * packet functions/utilities |
557 | * packet functions/utilities |