![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to w_net.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [Micropolis - Activity] / micropolis / src / sim|
Return to w_net.c CVS log | Up to [Micropolis - Activity] / micropolis / src / sim |
1.1 root 1: /* w_net.c
2: *
3: * Micropolis, Unix Version. This game was released for the Unix platform
4: * in or about 1990 and has been modified for inclusion in the One Laptop
5: * Per Child program. Copyright (C) 1989 - 2007 Electronic Arts Inc. If
6: * you need assistance with this program, you may contact:
7: * http://wiki.laptop.org/go/Micropolis or email [email protected].
8: *
9: * This program is free software: you can redistribute it and/or modify
10: * it under the terms of the GNU General Public License as published by
11: * the Free Software Foundation, either version 3 of the License, or (at
12: * your option) any later version.
13: *
14: * This program is distributed in the hope that it will be useful, but
15: * WITHOUT ANY WARRANTY; without even the implied warranty of
16: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17: * General Public License for more details. You should have received a
18: * copy of the GNU General Public License along with this program. If
19: * not, see <http://www.gnu.org/licenses/>.
20: *
21: * ADDITIONAL TERMS per GNU GPL Section 7
22: *
23: * No trademark or publicity rights are granted. This license does NOT
24: * give you any right, title or interest in the trademark SimCity or any
25: * other Electronic Arts trademark. You may not distribute any
26: * modification of this program using the trademark SimCity or claim any
27: * affliation or association with Electronic Arts Inc. or its employees.
28: *
29: * Any propagation or conveyance of this program must include this
30: * copyright notice and these terms.
31: *
32: * If you convey this program (or any modifications of it) and assume
33: * contractual liability for the program to recipients of it, you agree
34: * to indemnify Electronic Arts for any liability that those contractual
35: * assumptions impose on Electronic Arts.
36: *
37: * You may not misrepresent the origins of this program; modified
38: * versions of the program must be marked as such and not identified as
39: * the original program.
40: *
41: * This disclaimer supplements the one included in the General Public
42: * License. TO THE FULLEST EXTENT PERMISSIBLE UNDER APPLICABLE LAW, THIS
43: * PROGRAM IS PROVIDED TO YOU "AS IS," WITH ALL FAULTS, WITHOUT WARRANTY
44: * OF ANY KIND, AND YOUR USE IS AT YOUR SOLE RISK. THE ENTIRE RISK OF
45: * SATISFACTORY QUALITY AND PERFORMANCE RESIDES WITH YOU. ELECTRONIC ARTS
46: * DISCLAIMS ANY AND ALL EXPRESS, IMPLIED OR STATUTORY WARRANTIES,
47: * INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY, SATISFACTORY QUALITY,
48: * FITNESS FOR A PARTICULAR PURPOSE, NONINFRINGEMENT OF THIRD PARTY
49: * RIGHTS, AND WARRANTIES (IF ANY) ARISING FROM A COURSE OF DEALING,
50: * USAGE, OR TRADE PRACTICE. ELECTRONIC ARTS DOES NOT WARRANT AGAINST
51: * INTERFERENCE WITH YOUR ENJOYMENT OF THE PROGRAM; THAT THE PROGRAM WILL
52: * MEET YOUR REQUIREMENTS; THAT OPERATION OF THE PROGRAM WILL BE
53: * UNINTERRUPTED OR ERROR-FREE, OR THAT THE PROGRAM WILL BE COMPATIBLE
54: * WITH THIRD PARTY SOFTWARE OR THAT ANY ERRORS IN THE PROGRAM WILL BE
55: * CORRECTED. NO ORAL OR WRITTEN ADVICE PROVIDED BY ELECTRONIC ARTS OR
56: * ANY AUTHORIZED REPRESENTATIVE SHALL CREATE A WARRANTY. SOME
57: * JURISDICTIONS DO NOT ALLOW THE EXCLUSION OF OR LIMITATIONS ON IMPLIED
58: * WARRANTIES OR THE LIMITATIONS ON THE APPLICABLE STATUTORY RIGHTS OF A
59: * CONSUMER, SO SOME OR ALL OF THE ABOVE EXCLUSIONS AND LIMITATIONS MAY
60: * NOT APPLY TO YOU.
61: */
62: #include "sim.h"
63:
64:
65: #ifdef NET
66:
67:
68: #define NET_BUFFER_SIZE 1024
69:
70:
71: int net_listen_port;
72: int net_listen_socket;
73:
74:
75: int
76: udp_listen(int port)
77: {
78: struct sockaddr_in addr;
79: int flags;
80:
81: net_listen_port = port;
82:
83: net_listen_socket = socket(AF_INET, SOCK_DGRAM, 0);
84: if (net_listen_socket < 0) {
85: perror("socket()");
86: return 0;
87: }
88:
89: flags = 1;
90: if (setsockopt(net_listen_socket, SOL_SOCKET, SO_REUSEADDR,
91: (char *)&flags, sizeof(flags)) == -1) {
92: perror("setsockopt SO_REUSEADDR");
93: return 0;
94: }
95:
96: addr.sin_family = AF_INET;
97: addr.sin_port = net_listen_port;
98: addr.sin_addr.s_addr = INADDR_ANY;
99:
100: if (bind(net_listen_socket, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
101: perror("bind()");
102: return 0;
103: }
104:
105: if ((flags = fcntl(net_listen_socket, F_GETFL)) < 0) {
106: perror("fcntl F_GETFL");
107: return 0;
108: }
109:
110: if (fcntl(net_listen_socket, F_SETFL, flags|O_NDELAY) < 0) {
111: perror("fcntl F_SETFL");
112: return 0;
113: }
114:
115: Tcp_MakeOpenFile(tk_mainInterp, net_listen_socket, 1, 1);
116:
117: return (net_listen_socket);
118: }
119:
120:
121: udp_hear(int sock)
122: {
123: struct sockaddr_in addr;
124: int addr_len;
125: int len, i;
126: unsigned char buf[NET_BUFFER_SIZE];
127: char cmd[NET_BUFFER_SIZE * 4 + 256];
128: char *cp;
129:
130: while (1) {
131: len = recvfrom(sock, buf, NET_BUFFER_SIZE, 0,
132: (struct sockaddr *)&addr, &addr_len);
133:
134: if (len < 0) {
135: if (errno == EINTR) continue;
136: if (errno == EWOULDBLOCK) break;
137: perror("recvfrom");
138: return;
139: }
140:
141: sprintf(cmd, "HandlePacket %d {%s} {", sock, inet_ntoa(addr.sin_addr));
142:
143: cp = cmd + strlen(cmd);
144: for (i = 0; i < len; i++) {
145: sprintf(cp, "%3d ", buf[i]);
146: cp += 4;
147: }
148: sprintf(cp, "}");
149: Eval(cmd);
150: }
151: }
152:
153:
154: #endif
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.