2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2006, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure
6 * This program 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 2 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, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 * See files README, COPYING and CREDITS in the root of the source
23 * tree for related information and legal notices. It is expected
24 * that future projects/authors will amend these files as needed.
28 * emp_config.c: Allows config file to control server config. from a file
30 * Known contributors to this file:
32 * Steve McClure, 1998-2000
38 * Change other constants - such as MAXNOC etc.
39 * Just requires variables to be assigned, then dynamic allocation in
40 * a few places. Some checks needed in the server to check the world
41 * hasn't changed size etc.
61 static int emp_config_dummy;
63 /* things that can be changed */
64 struct keymatch configkeys[] = {
65 #define EMP_CONFIG_C_OUTPUT
66 #include "econfig-spec.h"
67 #undef EMP_CONFIG_C_OUTPUT
70 static struct keymatch *keylookup(char *key, struct keymatch tbl[]);
71 static void set_dirs(char *);
74 * read in empire configuration
77 emp_config(char *file)
91 if ((fp = fopen(file, "r")) == NULL) {
92 if (file == dflt_econfig && errno == ENOENT)
94 fprintf(stderr, "Can't open %s for reading (%s)\n",
95 file, strerror(errno));
99 while (fgets(buf, sizeof(buf), fp) != NULL) {
101 for (i = 0; buf[i] && isspace(buf[i]); ++i) ;
102 if (!buf[i] || buf[i] == '#')
104 if (parse(buf, av, NULL, scanspace, NULL) < 0) {
105 fprintf(stderr, "%s:%d: Can't parse line %s", file, lno, buf);
109 if ((kp = keylookup(av[0], configkeys)) == NULL) {
110 fprintf(stderr, "%s:%d: Unknown config key %s\n",
116 fprintf(stderr, "%s:%d: Config key %s needs a value\n",
122 switch (kp->km_type) {
124 *(int *)kp->km_data = atoi(av[1]);
127 *(float *)kp->km_data = atof(av[1]);
130 *(double *)kp->km_data = atof(av[1]);
133 *(long *)kp->km_data = atol(av[1]);
136 if (kp->km_flags & KM_ALLOC)
137 free(*(char **)kp->km_data);
138 *(char **)kp->km_data = strdup(av[1]);
139 kp->km_flags |= KM_ALLOC;
145 fprintf(stderr, "%s:%d: Junk after value of config key %s\n",
154 WORLD_X &= ~1; /* force even */
160 /* find the key in the table */
161 static struct keymatch *
162 keylookup(char *command, struct keymatch *tbl)
166 if (command == 0 || *command == 0)
168 for (kp = tbl; kp->km_key != 0; kp++) {
169 if (strcmp(kp->km_key, command) == 0)
176 set_dirs(char *econfig)
179 char *cwd = getcwd(NULL, 0);
182 econfig = _fullpath(NULL, econfig, 0);
183 slash = strrchr(econfig, '\\');
184 configdir = malloc(slash - econfig + 1);
185 memcpy(configdir, econfig, slash - econfig);
186 configdir[slash - econfig] = 0;
188 if ((slash = strrchr(econfig, '/'))) {
189 configdir = malloc(slash - econfig + 1);
190 memcpy(configdir, econfig, slash - econfig);
191 configdir[slash - econfig] = 0;
193 configdir = strdup(cwd);
195 if (configdir[0] != '/') {
196 char *tmp = configdir;
197 size_t len = strlen(cwd);
199 configdir = malloc(len + 1 + strlen(tmp) + 1);
200 sprintf(configdir, "%s/%s", cwd, tmp);
209 print_config(FILE *fp)
213 fprintf(fp, "# Empire Configuration File:\n");
214 for (kp = configkeys; kp->km_key; kp++) {
215 if (kp->km_comment) {
216 if (kp->km_comment[0] != '\n' && kp->km_comment[0] != '#')
218 fprintf(fp, "%s\n", kp->km_comment);
222 switch (kp->km_type) {
224 fprintf(fp, "%s \"%s\"\n", kp->km_key, *(char **)kp->km_data);
227 fprintf(fp, "%s %d\n", kp->km_key, *(int *)kp->km_data);
230 fprintf(fp, "%s %g\n", kp->km_key, *(float *)kp->km_data);
233 fprintf(fp, "%s %g\n", kp->km_key, *(double *)kp->km_data);
236 fprintf(fp, "%s %ld\n", kp->km_key, *(long *)kp->km_data);