/*-
 * Copyright (c) 1999 fjoe <fjoe@iclub.nsu.ru>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $Id: db_system.c 849 2006-04-22 13:08:54Z zsuzsu $
 */

#include <sys/types.h>
#if !defined(WIN32)
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#else
#include <winsock.h>
#endif
#include <stdio.h>
#include <string.h>

#include "merc.h"
#include "db.h"

DECLARE_DBLOAD_FUN(load_system);
DECLARE_DBLOAD_FUN(load_info);

DBFUN dbfun_system[] =
{
	{ "SYSTEM",	load_system	},
	{ "INFO",	load_info	},
	{ NULL }
};

DBDATA db_system = { dbfun_system };

static void fread_host(FILE *fp, varr *v);

DBLOAD_FUN(load_system)
{
	for (;;) {
		char *word = feof(fp) ? "End" : fread_word(fp);
		bool fMatch = FALSE;

		switch(UPPER(word[0])) {
		case 'E':
			if (!str_cmp(word, "End"))
				return;
			break;
		case 'L':
			if (!str_cmp(word, "Listen")) {
				int *p = varr_enew(&control_sockets);
				*p = fread_number(fp);
				fMatch = TRUE;
			}
			break;
		case 'O':
			KEY("Options", mud_options,
			    fread_fstring(options_table, fp));
			break;
		}

		if (!fMatch) 
			db_error("load_system", "%s: Unknown keyword", word);
	}
}

DBLOAD_FUN(load_info)
{
	for (;;) {
		char *word = feof(fp) ? "End" : fread_word(fp);
		bool fMatch = FALSE;

		switch(UPPER(word[0])) {
		case 'A':
			if (!str_cmp(word, "Allow")) {
				fread_host(fp, &info_trusted);
				fMatch = TRUE;
			}
			break;
		case 'E':
			if (!str_cmp(word, "End"))
				return;
			break;
		case 'L':
			if (!str_cmp(word, "Listen")) {
				int *p = varr_enew(&info_sockets);
				*p = fread_number(fp);
				fMatch = TRUE;
			}
			break;
		}

		if (!fMatch) 
			db_error("load_info", "%s: Unknown keyword", word);
	}
}

static void fread_host(FILE *fp, varr *v)
{
	const char *s = fread_string(fp);
	struct hostent *h = gethostbyname(s);

	free_string(s);
	if (!h)
		log_printf("load_info: gethostbyname: %s", hstrerror(h_errno));
	else {
		for (; *h->h_addr_list; h->h_addr_list++) {
			struct in_addr *in_addr;
			in_addr = varr_enew(v);
			memcpy(in_addr, *h->h_addr_list, sizeof(*in_addr));
			log_printf("load_info: added '%s' to trusted list",
				   inet_ntoa(*in_addr));
		}
	}
}