2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2020, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure, Markus Armbruster
6 * Empire is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
21 * See files README, COPYING and CREDITS in the root of the source
22 * tree for related information and legal notices. It is expected
23 * that future projects/authors will amend these files as needed.
27 * main.c: client main function
29 * Known contributors to this file:
32 * Ron Koenderink, 2004-2007
33 * Markus Armbruster, 2005-2015
34 * Tom Dickson-Hunt, 2010
35 * Martin Haukeli, 2015
45 #include "sys/socket.h"
56 #define getpwuid(uid) ((void)(uid), w32_getpw())
57 #define sysdep_init() w32_sysdep_init()
64 static struct passwd *w32_getpw(void);
65 static void w32_sysdep_init(void);
67 #define sysdep_init() ((void)0)
71 print_usage(char *program_name)
73 printf("Usage: %s [OPTION]...[COUNTRY [PASSWORD]]\n"
74 " -2 FILE Append log of session to FILE\n"
75 " -k Kill connection\n"
76 " -r Restricted mode, no redirections\n"
77 " -s [HOST:]PORT Specify server HOST and PORT\n"
79 #ifdef HAVE_LIBREADLINE
80 " -H FILE Load and save command history from FILE\n"
81 " (default ~/.empire_history with -r, none without -r)\n"
82 #endif /* HAVE_LIBREADLINE */
83 " -h display this help and exit\n"
84 " -v display version information and exit\n",
89 main(int argc, char **argv)
92 char *auxfname = NULL;
93 char *history_file = NULL;
106 while ((opt = getopt(argc, argv, "2:H:krs:uhv")) != EOF) {
111 #ifdef HAVE_LIBREADLINE
113 history_file = optarg;
115 #endif /* HAVE_LIBREADLINE */
123 port = strdup(optarg);
124 colon = strrchr(port, ':');
132 utf8 = eight_bit_clean = 1;
135 print_usage(argv[0]);
138 printf("%s\n\n%s", version, legal);
141 fprintf(stderr, "Try -h for help.\n");
150 country = getenv("COUNTRY");
154 passwd = getenv("PLAYER");
156 port = getenv("EMPIREPORT");
160 host = getenv("EMPIREHOST");
163 uname = getenv("LOGNAME");
164 udir = getenv("HOME");
165 if (!uname || !udir) {
168 pwd = getpwuid(getuid());
170 fprintf(stderr, "You don't exist. Go away\n");
174 uname = pwd->pw_name;
179 fprintf(stderr, "%s: extra operand %s\n", argv[0], *ap);
180 fprintf(stderr, "Try -h for help.\n");
185 if (auxfname && (auxfp = fopen(auxfname, "a")) == NULL) {
186 fprintf(stderr, "Unable to open %s for append\n", auxfname);
192 sock = tcp_connect(host, port);
194 if (!restricted && !history_file)
195 history_file = ".empire_history";
197 history_file = fnameat(history_file, udir);
199 if (!login(sock, uname, country, passwd, send_kill, utf8))
202 if (play(sock, history_file) < 0)
210 * Get Windows user name and directory
212 static struct passwd *
215 static char unamebuf[128];
216 static char udirbuf[MAX_PATH];
217 static struct passwd pwd;
220 unamesize = sizeof(unamebuf);
221 if (GetUserName(unamebuf, &unamesize)) {
222 pwd.pw_name = unamebuf;
223 if (unamesize == 0 || strlen(unamebuf) == 0)
224 pwd.pw_name = "nobody";
226 pwd.pw_name = "nobody";
227 if (SUCCEEDED(SHGetFolderPathA(NULL, CSIDL_PROFILE, NULL, 0, udirbuf))
228 && strlen(udirbuf) == 0)
229 pwd.pw_dir = udirbuf;
234 w32_sysdep_init(void)
239 * stdout is unbuffered under Windows if connected to a character
240 * device, and putchar() screws up when printing multibyte strings
241 * bytewise to an unbuffered stream. Switch stdout to line-
242 * buffered mode. Unfortunately, ISO C allows implementations to
243 * screw that up, and of course Windows does. Manual flushing
244 * after each prompt is required.
246 setvbuf(stdout, NULL, _IOLBF, 4096);
248 err = w32_socket_init();
250 fprintf(stderr, "WSAStartup Failed, error code %d\n", err);