f8b5feb361
Signed-off-by: Gergely POLONKAI <polesz@w00d5t0ck.info>
339 lines
7.2 KiB
C
339 lines
7.2 KiB
C
/* wMUD - Yet another MUD codebase by W00d5t0ck
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* Copyright (C) 2012 - Gergely POLONKAI
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*
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* main.c: main and uncategorized functions
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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, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <glib.h>
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#include <gio/gio.h>
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#ifdef HAVE_CRYPT_H
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#include <crypt.h>
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#endif
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#include "wmud-types.h"
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#include "main.h"
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#include "game-networking.h"
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#include "interpreter.h"
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#include "db.h"
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#include "players.h"
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#include "maintenance.h"
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#include "game.h"
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/**
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* SECTION:utils
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* @short_description: Utilities and uncategorized functions
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* @title: Utility and uncategorized functions
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*
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*/
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/**
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* debug_context_loc:
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*
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* This variable holds the location of the last context marker
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*/
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struct {
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char *file;
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int line;
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} debug_context_loc = {NULL, 0};
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/**
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* main_rand:
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*
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* the main random generator
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*/
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GRand *main_rand = NULL;
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/**
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* WMUD_CONFIG_ERROR:
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*
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* the GQuark for the config error GError
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*/
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GQuark WMUD_CONFIG_ERROR = 0;
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/**
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* WMUD_DB_ERROR:
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*
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* the GQuark for the database error GError
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*/
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GQuark WMUD_DB_ERROR = 0;
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/**
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* port:
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*
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* the port number to listen on
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*/
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guint port = 0;
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/**
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* database_file:
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*
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* the filename of the world database
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*/
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gchar *database_file = NULL;
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/**
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* admin_email:
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*
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* e-mail address of the MUD's administrator
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*/
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gchar *admin_email = NULL;
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/**
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* wmud_random_string:
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* @len: the desired length of the generated random string
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*
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* Generates a random string of %len characters.
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*/
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gchar *
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wmud_random_string(gint len)
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{
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gchar *ret = g_malloc0(len + 1);
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gint i;
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for (i = 0; i < len; i++)
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{
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gchar c = 0;
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/* Include only printable characters, but exclude $ because of
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* salt generation */
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while (!g_ascii_isprint(c) || (c == '$'))
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c = random_number(1, 127);
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ret[i] = c;
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}
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return ret;
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}
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#ifdef DEBUG
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void
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/**
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* debug_context:
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* @file: the source file name, where the context marker was found
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* @line: the line number where the context marker was found
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*
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* This function keeps track of the code flow in some way. It can help with
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* debugging, as during a SIGSEGV or such signal this will print out the last
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* place of DebugContext in the code.
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*
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* THIS FUNCTION SHOULD NEVER BE CALLED DIRECTLY!
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*/
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debug_context(char *file, int line)
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{
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if (debug_context_loc.file != NULL)
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g_free(debug_context_loc.file);
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debug_context_loc.file = g_strdup(file);
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debug_context_loc.line = line;
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}
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/**
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* DebugContext:
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*
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* Marks the current line of the source file with a context marker. Deadly
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* signals should print the place of the last marker.
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*/
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#define DebugContext debug_context(__FILE__, __LINE__)
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#else
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#define DebugContext
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#endif
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/**
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* wmud_type_init:
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*
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* Initializes the wMUD types.
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*/
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void
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wmud_type_init(void)
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{
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WMUD_CONFIG_ERROR = g_quark_from_string("wmud_config_error");
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WMUD_DB_ERROR = g_quark_from_string("wmud_db_error");
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}
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/**
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* wmud_config_init:
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* @err: The GError in which the config handling status should be returned
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*
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* Parses the default configuration file, and sets different variables
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* according to it.
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*
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* Return value: %TRUE if parsing was successful. %FALSE otherwise.
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*/
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gboolean
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wmud_config_init(GError **err)
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{
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GString *config_file = g_string_new(WMUD_CONFDIR);
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GKeyFile *config;
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GError *in_err = NULL;
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g_string_append(config_file, "/wmud.conf");
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config = g_key_file_new();
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/* TODO: Error checking */
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g_key_file_load_from_file(config, config_file->str, 0, &in_err);
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if (!g_key_file_has_group(config, "global"))
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{
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g_set_error(err, WMUD_CONFIG_ERROR, WMUD_CONFIG_ERROR_NOGLOBAL, "Config file (%s) does not contain a [global] group", config_file->str);
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g_key_file_free(config);
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g_string_free(config_file, TRUE);
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return FALSE;
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}
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g_clear_error(&in_err);
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port = g_key_file_get_integer(config, "global", "port", &in_err);
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if (in_err)
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{
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if (g_error_matches(in_err, G_KEY_FILE_ERROR, G_KEY_FILE_ERROR_KEY_NOT_FOUND))
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{
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port = DEFAULT_PORT;
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}
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else if (g_error_matches(in_err, G_KEY_FILE_ERROR, G_KEY_FILE_ERROR_INVALID_VALUE))
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{
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g_set_error(err, WMUD_CONFIG_ERROR, WMUD_CONFIG_ERROR_BADPORT, "Config file (%s) contains an invalid port number", config_file->str);
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g_key_file_free(config);
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g_string_free(config_file, TRUE);
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port = 0;
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return FALSE;
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}
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return FALSE;
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}
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g_clear_error(&in_err);
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database_file = g_key_file_get_string(config, "global", "world file", &in_err);
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if (in_err)
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{
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if (g_error_matches(in_err, G_KEY_FILE_ERROR, G_KEY_FILE_ERROR_KEY_NOT_FOUND))
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{
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g_set_error(err, WMUD_CONFIG_ERROR, WMUD_CONFIG_ERROR_NOWORLD, "Config file (%s) does not contain a world file path", config_file->str);
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g_key_file_free(config);
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g_string_free(config_file, TRUE);
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database_file = NULL;
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return FALSE;
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}
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}
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g_clear_error(&in_err);
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admin_email = g_key_file_get_string(config, "global", "admin email", &in_err);
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if (in_err)
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{
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if (g_error_matches(in_err, G_KEY_FILE_ERROR, G_KEY_FILE_ERROR_KEY_NOT_FOUND))
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{
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g_set_error(err, WMUD_CONFIG_ERROR, WMUD_CONFIG_ERROR_NOEMAIL, "Config file (%s) does not contain an admin e-mail address", config_file->str);
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g_key_file_free(config);
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g_string_free(config_file, TRUE);
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admin_email = NULL;
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return FALSE;
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}
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}
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g_key_file_free(config);
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g_string_free(config_file, TRUE);
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return TRUE;
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}
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/**
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* main:
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* @argc: The number of arguments on the command line
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* @argv: The command line arguments themselves
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*
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* The Main Function (TM)
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*/
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int
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main(int argc, char **argv)
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{
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GError *err = NULL;
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GThread *game_thread;
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GMainContext *game_context;
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/* Initialize the thread and type system */
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g_thread_init(NULL);
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g_type_init();
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wmud_type_init();
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/* TODO: Command line parsing */
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/* Initialize random number generator */
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main_rand = g_rand_new();
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/* TODO: Create signal handlers! */
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if (!wmud_config_init(&err))
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{
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if (err)
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{
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g_critical("Config file parsing error: %s", err->message);
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}
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else
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{
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g_critical("Config file parsing error!");
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}
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return 1;
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}
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g_assert(port != 0);
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g_assert(database_file != NULL);
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g_clear_error(&err);
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if (!wmud_db_init(&err))
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{
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if (err)
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{
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g_critical("Database initialization error: %s", err->message);
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}
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else
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{
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g_critical("Database initialization error!");
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}
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return 1;
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}
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g_clear_error(&err);
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wmud_db_players_load(&err);
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/* Initialization ends here */
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wmud_game_init(&game_thread, &game_context);
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g_clear_error(&err);
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if (!wmud_networking_init(port, game_context, &err))
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{
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if (err)
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{
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g_critical("Database initialization error: %s", err->message);
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}
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else
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{
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g_critical("Database initialization error!");
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}
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return 1;
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}
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wmud_maintenance_init();
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/* Initialize other threads here */
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g_thread_join(game_thread);
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return 0;
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}
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