path: root/src/map/chrif.c

// $Id: chrif.c,v 1.6 2004/09/25 11:39:17 MouseJstr Exp $
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef _WIN32
#include <winsock.h>
#else
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#endif
#include <sys/types.h>
#include <time.h>

#include "socket.h"
#include "timer.h"
#include "map.h"
#include "battle.h"
#include "chrif.h"
#include "clif.h"
#include "intif.h"
#include "npc.h"
#include "pc.h"
#include "nullpo.h"
#include "showmsg.h"

#ifdef MEMWATCH
#include "memwatch.h"
#endif

static const int packet_len_table[0x20] = {
	60, 3,-1,27,22,-1, 6,-1,	// 2af8-2aff
	 6,-1,18, 7,-1,49,44, 0,	// 2b00-2b07
	 6,30,-1,10,86, 7,44,34,	// 2b08-2b0f
	-1,-1,10, 6,11,-1, 0, 0,	// 2b10-2b17
};

int char_fd = -1;
int srvinfo;
static char char_ip_str[16];
static int char_ip;
static int char_port = 6121;
static char userid[24], passwd[24];
static int chrif_state = 0;
static int char_init_done = 0;

// �ݒ�t�@�C���ǂݍ��݊֌W
/*==========================================
 *
 *------------------------------------------
 */
void chrif_setuserid(char *id)
{
	strncpy(userid, id, 24);
}

/*==========================================
 *
 *------------------------------------------
 */
void chrif_setpasswd(char *pwd)
{
	strncpy(passwd, pwd, 24);
}

/*==========================================
 *
 *------------------------------------------
 */
void chrif_setip(char *ip)
{
	strncpy(char_ip_str, ip, 16);
	char_ip = inet_addr(char_ip_str);
}

/*==========================================
 *
 *------------------------------------------
 */
void chrif_setport(int port)
{
	char_port = port;
}

/*==========================================
 *
 *------------------------------------------
 */
int chrif_isconnect(void)
{
	return chrif_state == 2;
}

/*==========================================
 *
 *------------------------------------------
 */
int chrif_save(struct map_session_data *sd)
{
	nullpo_retr(-1, sd);

	if (char_fd < 1 || session[char_fd] == NULL || !chrif_isconnect())
		return -1;

	pc_makesavestatus(sd);

	WFIFOW(char_fd,0) = 0x2b01;
	WFIFOW(char_fd,2) = sizeof(sd->status) + 12;
	WFIFOL(char_fd,4) = sd->bl.id;
	WFIFOL(char_fd,8) = sd->char_id;
	memcpy(WFIFOP(char_fd,12), &sd->status, sizeof(sd->status));
	WFIFOSET(char_fd, WFIFOW(char_fd,2));

	storage_storage_save(sd); // to synchronise storage with character [Yor]

	return 0;
}

/*==========================================
 *
 *------------------------------------------
 */
int chrif_connect(int fd)
{
	WFIFOW(fd,0) = 0x2af8;
	memcpy(WFIFOP(fd,2), userid, 24);
	memcpy(WFIFOP(fd,26), passwd, 24);
	WFIFOL(fd,50) = 0;
	WFIFOL(fd,54) = clif_getip();
	WFIFOW(fd,58) = clif_getport();	// [Valaris] thanks to fov
	WFIFOSET(fd,60);

	return 0;
}

/*==========================================
 * �}�b�v���M
 *------------------------------------------
 */
int chrif_sendmap(int fd)
{
	int i;

	WFIFOW(fd,0) = 0x2afa;
	for(i = 0; i < map_num; i++)
                if (map[i].alias != '\0') // [MouseJstr] map aliasing
		    memcpy(WFIFOP(fd,4+i*16), map[i].alias, 16);
		else
		    memcpy(WFIFOP(fd,4+i*16), map[i].name, 16);
	WFIFOW(fd,2) = 4 + i * 16;
	WFIFOSET(fd,WFIFOW(fd,2));

	return 0;
}

/*==========================================
 * �}�b�v��M
 *------------------------------------------
 */
int chrif_recvmap(int fd)
{
	int i, j, ip, port;
	unsigned char *p = (unsigned char *)&ip;

	if (chrif_state < 2)	// �܂�������
		return -1;

	ip = RFIFOL(fd,4);
	port = RFIFOW(fd,8);
	for(i = 10, j = 0; i < RFIFOW(fd,2); i += 16, j++) {
		map_setipport((char*)RFIFOP(fd,i), ip, port);
//		if (battle_config.etc_log)
//			printf("recv map %d %s\n", j, RFIFOP(fd,i));
	}
	if (battle_config.etc_log)
		printf("recv map on %d.%d.%d.%d:%d (%d maps)\n", p[0], p[1], p[2], p[3], port, j);

	return 0;
}

/*==========================================
 * �}�b�v�I�Ԉړ��̂��߂̃f�[�^�����v��
 *------------------------------------------
 */
int chrif_changemapserver(struct map_session_data *sd, char *name, int x, int y, int ip, short port)
{
	int i, s_ip;

	nullpo_retr(-1, sd);

	if (!sd || char_fd < 1 || session[char_fd] == NULL || !chrif_isconnect() )
		return -1;

	s_ip = 0;
	for(i = 0; i < fd_max; i++)
		if (session[i] && session[i]->session_data == sd) {
			s_ip = session[i]->client_addr.sin_addr.s_addr;
			break;
		}

	WFIFOW(char_fd, 0) = 0x2b05;
	WFIFOL(char_fd, 2) = sd->bl.id;
	WFIFOL(char_fd, 6) = sd->login_id1;
	WFIFOL(char_fd,10) = sd->login_id2;
	WFIFOL(char_fd,14) = sd->status.char_id;
	memcpy(WFIFOP(char_fd,18), name, 16);
	WFIFOW(char_fd,34) = x;
	WFIFOW(char_fd,36) = y;
	WFIFOL(char_fd,38) = ip;
	WFIFOL(char_fd,42) = port;
	WFIFOB(char_fd,44) = sd->status.sex;
	WFIFOL(char_fd,45) = s_ip;
	WFIFOSET(char_fd,49);

	return 0;
}

/*==========================================
 * �}�b�v�I�Ԉړ�ack
 *------------------------------------------
 */
int chrif_changemapserverack(int fd)
{
	struct map_session_data *sd = map_id2sd(RFIFOL(fd,2));

	if (sd == NULL || sd->status.char_id != RFIFOL(fd,14))
		return -1;

	if (RFIFOL(fd,6) == 1) {
		if (battle_config.error_log)
			printf("map server change failed.\n");
		pc_authfail(sd->fd);
		return 0;
	}
	clif_changemapserver(sd, (char*)RFIFOP(fd,18), RFIFOW(fd,34), RFIFOW(fd,36), RFIFOL(fd,38), RFIFOW(fd,42));

	return 0;
}

/*==========================================
 *
 *------------------------------------------
 */
int chrif_connectack(int fd)
{
	if (RFIFOB(fd,2)) {
		printf("Connected to char-server failed %d.\n", RFIFOB(fd,2));
		exit(1);
	}
	sprintf(tmp_output,"Successfully connected to Char Server (Connection: '"CL_WHITE"%d"CL_RESET"').\n",fd);
	ShowStatus(tmp_output);
	chrif_state = 1;
	chrif_connected=1;

	chrif_sendmap(fd);

	sprintf(tmp_output,"Event '"CL_WHITE"OnCharIfInit"CL_RESET"' executed with '"CL_WHITE"%d"CL_RESET"' NPCs.\n", npc_event_doall("OnCharIfInit"));
	ShowStatus(tmp_output);
	sprintf(tmp_output,"Event '"CL_WHITE"OnInterIfInit"CL_RESET"' executed with '"CL_WHITE"%d"CL_RESET"' NPCs.\n", npc_event_doall("OnInterIfInit"));
	ShowStatus(tmp_output);
	if(!char_init_done) {
		char_init_done = 1;
		sprintf(tmp_output,"Event '"CL_WHITE"OnInterIfInitOnce"CL_RESET"' executed with '"CL_WHITE"%d"CL_RESET"' NPCs.\n", npc_event_doall("OnInterIfInitOnce"));
		ShowStatus(tmp_output);
	}

	// <Agit> Run Event [AgitInit]
//	printf("NPC_Event:[OnAgitInit] do (%d) events (Agit Initialize).\n", npc_event_doall("OnAgitInit"));

	return 0;
}

/*==========================================
 *
 *------------------------------------------
 */
int chrif_sendmapack(int fd)
{
	if (RFIFOB(fd,2)) {
		printf("chrif : send map list to char server failed %d\n", RFIFOB(fd,2));
		exit(1);
	}

	memcpy(wisp_server_name, RFIFOP(fd,3), 24);

	chrif_state = 2;

	return 0;
}

/*==========================================
 *
 *------------------------------------------
 */
int chrif_authreq(struct map_session_data *sd)
{
	int i;

	nullpo_retr(-1, sd);

	if (!sd || char_fd < 1 || session[char_fd] == NULL || !chrif_isconnect() || !sd->bl.id || !sd->login_id1)
		return -1;

	for(i = 0; i < fd_max; i++)
		if (session[i] && session[i]->session_data == sd) {
			WFIFOW(char_fd, 0) = 0x2afc;
			WFIFOL(char_fd, 2) = sd->bl.id;
			WFIFOL(char_fd, 6) = sd->char_id;
			WFIFOL(char_fd,10) = sd->login_id1;
			WFIFOL(char_fd,14) = sd->login_id2;
			WFIFOL(char_fd,18) = session[i]->client_addr.sin_addr.s_addr;
			WFIFOSET(char_fd,22);
			break;
		}

	return 0;
}

/*==========================================
 *
 *------------------------------------------
 */
int chrif_charselectreq(struct map_session_data *sd)
{
	int i, s_ip;

	nullpo_retr(-1, sd);

	if(!sd || char_fd < 1 || session[char_fd] == NULL || !chrif_isconnect() || !sd->bl.id || !sd->login_id1)
		return -1;

	s_ip = 0;
	for(i = 0; i < fd_max; i++)
		if (session[i] && session[i]->session_data == sd) {
			s_ip = session[i]->client_addr.sin_addr.s_addr;
			break;
		}

	WFIFOW(char_fd, 0) = 0x2b02;
	WFIFOL(char_fd, 2) = sd->bl.id;
	WFIFOL(char_fd, 6) = sd->login_id1;
	WFIFOL(char_fd,10) = sd->login_id2;
	WFIFOL(char_fd,14) = s_ip;
	WFIFOSET(char_fd,18);

	return 0;
}

/*==========================================
 * �L�������₢���킹
 *------------------------------------------
 */
int chrif_searchcharid(int char_id)
{
	if (!char_id || char_fd < 1 || session[char_fd] == NULL || !chrif_isconnect())
		return -1;

	WFIFOW(char_fd,0) = 0x2b08;
	WFIFOL(char_fd,2) = char_id;
	WFIFOSET(char_fd,6);

	return 0;
}

/*==========================================
 * GM�ɕω��v��
 *------------------------------------------
 */
int chrif_changegm(int id, const char *pass, int len)
{
	if (battle_config.etc_log)
		printf("chrif_changegm: account: %d, password: '%s'.\n", id, pass);

	if (char_fd < 1 || session[char_fd] == NULL || !chrif_isconnect() )
		return -1;

	WFIFOW(char_fd,0) = 0x2b0a;
	WFIFOW(char_fd,2) = len + 8;
	WFIFOL(char_fd,4) = id;
	memcpy(WFIFOP(char_fd,8), pass, len);
	WFIFOSET(char_fd, len + 8);

	return 0;
}

/*==========================================
 * Change Email
 *------------------------------------------
 */
int chrif_changeemail(int id, const char *actual_email, const char *new_email)
{
	if (battle_config.etc_log)
		printf("chrif_changeemail: account: %d, actual_email: '%s', new_email: '%s'.\n", id, actual_email, new_email);

	if (char_fd < 1 || session[char_fd] == NULL || !chrif_isconnect() )
		return -1;

	WFIFOW(char_fd,0) = 0x2b0c;
	WFIFOL(char_fd,2) = id;
	memcpy(WFIFOP(char_fd,6), actual_email, 40);
	memcpy(WFIFOP(char_fd,46), new_email, 40);
	WFIFOSET(char_fd,86);

	return 0;
}

/*==========================================
 * Send message to char-server with a character name to do some operations (by Yor)
 * Used to ask Char-server about a character name to have the account number to modify account file in login-server.
 * type of operation:
 *   1: block
 *   2: ban
 *   3: unblock
 *   4: unban
 *   5: changesex
 *------------------------------------------
 */
int chrif_char_ask_name(int id, char * character_name, short operation_type, int year, int month, int day, int hour, int minute, int second)
{
   	if (char_fd < 1 || session[char_fd] == NULL || !chrif_isconnect() )
		return -1;

	WFIFOW(char_fd, 0) = 0x2b0e;
	WFIFOL(char_fd, 2) = id; // account_id of who ask (for answer) -1 if nobody
	memcpy(WFIFOP(char_fd,6), character_name, 24);
	WFIFOW(char_fd, 30) = operation_type; // type of operation
	if (operation_type == 2) {
		WFIFOW(char_fd, 32) = year;
		WFIFOW(char_fd, 34) = month;
		WFIFOW(char_fd, 36) = day;
		WFIFOW(char_fd, 38) = hour;
		WFIFOW(char_fd, 40) = minute;
		WFIFOW(char_fd, 42) = second;
	}
	printf("chrif : sended 0x2b0e\n");
	WFIFOSET(char_fd,44);

	return 0;
}

/*==========================================
 * ���ʕω��v��
 *------------------------------------------
 */
int chrif_changesex(int id, int sex) {
   	if (char_fd < 1 || session[char_fd] == NULL || !chrif_isconnect() )
		return -1;

	WFIFOW(char_fd,0) = 0x2b11;
	WFIFOW(char_fd,2) = 9;
	WFIFOL(char_fd,4) = id;
	WFIFOB(char_fd,8) = sex;
	printf("chrif : sent 0x3000(changesex)\n");
	WFIFOSET(char_fd,9);
	return 0;
}

/*==========================================
 * Answer after a request about a character name to do some operations (by Yor)
 * Used to answer of chrif_char_ask_name.
 * type of operation:
 *   1: block
 *   2: ban
 *   3: unblock
 *   4: unban
 *   5: changesex
 * type of answer:
 *   0: login-server resquest done
 *   1: player not found
 *   2: gm level too low
 *   3: login-server offline
 *------------------------------------------
 */
int chrif_char_ask_name_answer(int fd)
{
	int acc;
	struct map_session_data *sd;
	char output[256];
	char player_name[24];

	acc = RFIFOL(fd,2); // account_id of who has asked (-1 if nobody)
	memcpy(player_name, RFIFOP(fd,6), sizeof(player_name));
	player_name[sizeof(player_name)-1] = '\0';

	sd = map_id2sd(acc);
	if (acc >= 0 && sd != NULL) {
		if (RFIFOW(fd, 32) == 1) // player not found
			sprintf(output, "The player '%s' doesn't exist.", player_name);
		else {
			switch(RFIFOW(fd, 30)) {
			case 1: // block
				switch(RFIFOW(fd, 32)) {
				case 0: // login-server resquest done
					sprintf(output, "Login-server has been asked to block the player '%s'.", player_name);
					break;
				//case 1: // player not found
				case 2: // gm level too low
					sprintf(output, "Your GM level don't authorise you to block the player '%s'.", player_name);
					break;
				case 3: // login-server offline
					sprintf(output, "Login-server is offline. Impossible to block the the player '%s'.", player_name);
					break;
				}
				break;
			case 2: // ban
				switch(RFIFOW(fd, 32)) {
				case 0: // login-server resquest done
					sprintf(output, "Login-server has been asked to ban the player '%s'.", player_name);
					break;
				//case 1: // player not found
				case 2: // gm level too low
					sprintf(output, "Your GM level don't authorise you to ban the player '%s'.", player_name);
					break;
				case 3: // login-server offline
					sprintf(output, "Login-server is offline. Impossible to ban the the player '%s'.", player_name);
					break;
				}
				break;
			case 3: // unblock
				switch(RFIFOW(fd, 32)) {
				case 0: // login-server resquest done
					sprintf(output, "Login-server has been asked to unblock the player '%s'.", player_name);
					break;
				//case 1: // player not found
				case 2: // gm level too low
					sprintf(output, "Your GM level don't authorise you to unblock the player '%s'.", player_name);
					break;
				case 3: // login-server offline
					sprintf(output, "Login-server is offline. Impossible to unblock the the player '%s'.", player_name);
					break;
				}
				break;
			case 4: // unban
				switch(RFIFOW(fd, 32)) {
				case 0: // login-server resquest done
					sprintf(output, "Login-server has been asked to unban the player '%s'.", player_name);
					break;
				//case 1: // player not found
				case 2: // gm level too low
					sprintf(output, "Your GM level don't authorise you to unban the player '%s'.", player_name);
					break;
				case 3: // login-server offline
					sprintf(output, "Login-server is offline. Impossible to unban the the player '%s'.", player_name);
					break;
				}
				break;
			case 5: // changesex
				switch(RFIFOW(fd, 32)) {
				case 0: // login-server resquest done
					sprintf(output, "Login-server has been asked to change the sex of the player '%s'.", player_name);
					break;
				//case 1: // player not found
				case 2: // gm level too low
					sprintf(output, "Your GM level don't authorise you to change the sex of the player '%s'.", player_name);
					break;
				case 3: // login-server offline
					sprintf(output, "Login-server is offline. Impossible to change the sex of the the player '%s'.", player_name);
					break;
				}
				break;
			}
		}
		if (output[0] != '\0') {
			output[sizeof(output)-1] = '\0';
			clif_displaymessage(sd->fd, output);
		}
	} else
		printf("chrif_char_ask_name_answer failed - player not online.\n");

	return 0;
}

/*==========================================
 * End of GM change (@GM) (modified by Yor)
 *------------------------------------------
 */
int chrif_changedgm(int fd)
{
	int acc, level;
	struct map_session_data *sd = NULL;

	acc = RFIFOL(fd,2);
	level = RFIFOL(fd,6);

	sd = map_id2sd(acc);

	if (battle_config.etc_log)
		printf("chrif_changedgm: account: %d, GM level 0 -> %d.\n", acc, level);
	if (sd != NULL) {
		if (level > 0)
			clif_displaymessage(sd->fd, "GM modification success.");
		else
			clif_displaymessage(sd->fd, "Failure of GM modification.");
	}

	return 0;
}

/*==========================================
 * ���ʕω��I�� (modified by Yor)
 *------------------------------------------
 */
int chrif_changedsex(int fd)
{
	int acc, sex, i;
	struct map_session_data *sd;
	struct pc_base_job s_class;

	acc = RFIFOL(fd,2);
	sex = RFIFOL(fd,6);
	if (battle_config.etc_log)
		printf("chrif_changedsex %d.\n", acc);
	sd = map_id2sd(acc);
	if (acc > 0) {
		if (sd != NULL && sd->status.sex != sex) {
			s_class = pc_calc_base_job(sd->status.class_);
			if (sd->status.sex == 0) {
				sd->status.sex = 1;
				sd->sex = 1;
			} else if (sd->status.sex == 1) {
				sd->status.sex = 0;
				sd->sex = 0;
			}
			// to avoid any problem with equipment and invalid sex, equipment is unequiped.
			for (i = 0; i < MAX_INVENTORY; i++) {
				if (sd->status.inventory[i].nameid && sd->status.inventory[i].equip)
					pc_unequipitem((struct map_session_data*)sd, i, 2);
			}
			// reset skill of some job
			if (s_class.job == 19 || s_class.job == 4020 || s_class.job == 4042 ||
			    s_class.job == 20 || s_class.job == 4021 || s_class.job == 4043) {
				// remove specifical skills of classes 19, 4020 and 4042
				for(i = 315; i <= 322; i++) {
					if (sd->status.skill[i].id > 0 && !sd->status.skill[i].flag) {
						sd->status.skill_point += sd->status.skill[i].lv;
						sd->status.skill[i].id = 0;
						sd->status.skill[i].lv = 0;
					}
				}
				// remove specifical skills of classes 20, 4021 and 4043
				for(i = 323; i <= 330; i++) {
					if (sd->status.skill[i].id > 0 && !sd->status.skill[i].flag) {
						sd->status.skill_point += sd->status.skill[i].lv;
						sd->status.skill[i].id = 0;
						sd->status.skill[i].lv = 0;
					}
				}
				clif_updatestatus(sd, SP_SKILLPOINT);
				// change job if necessary
				if (s_class.job == 20 || s_class.job == 4021 || s_class.job == 4043)
					sd->status.class_ -= 1;
				else if (s_class.job == 19 || s_class.job == 4020 || s_class.job == 4042)
					sd->status.class_ += 1;
			}
			// save character
			chrif_save(sd);
			sd->login_id1++; // change identify, because if player come back in char within the 5 seconds, he can change its characters
			                 // do same modify in login-server for the account, but no in char-server (it ask again login_id1 to login, and don't remember it)
			clif_displaymessage(sd->fd, "Your sex has been changed (need disconnection by the server)...");
			clif_setwaitclose(sd->fd); // forced to disconnect for the change
		}
	} else {
		if (sd != NULL) {
			printf("chrif_changedsex failed.\n");
		}
	}

	return 0;
}

/*==========================================
 * �A�J�E���g�ϐ��ۑ��v��
 *------------------------------------------
 */
int chrif_saveaccountreg2(struct map_session_data *sd)
{
	int p, j;
	nullpo_retr(-1, sd);

	if (char_fd < 1 || session[char_fd] == NULL || !chrif_isconnect() )
		return -1;

	p = 8;
	for(j = 0; j < sd->status.account_reg2_num; j++) {
		struct global_reg *reg = &sd->status.account_reg2[j];
		if (reg->str[0] && reg->value != 0) {
			memcpy(WFIFOP(char_fd,p), reg->str, 32);
			WFIFOL(char_fd,p+32) = reg->value;
			p += 36;
		}
	}
	WFIFOW(char_fd,0) = 0x2b10;
	WFIFOW(char_fd,2) = p;
	WFIFOL(char_fd,4) = sd->bl.id;
	WFIFOSET(char_fd,p);

	return 0;
}

/*==========================================
 * �A�J�E���g�ϐ��ʒm
 *------------------------------------------
 */
int chrif_accountreg2(int fd)
{
	int j, p;
	struct map_session_data *sd;

	if ((sd = map_id2sd(RFIFOL(fd,4))) == NULL)
		return 1;

	for(p = 8, j = 0; p < RFIFOW(fd,2) && j < ACCOUNT_REG2_NUM; p += 36, j++) {
		memcpy(sd->status.account_reg2[j].str, RFIFOP(fd,p), 32);
		sd->status.account_reg2[j].value = RFIFOL(fd, p + 32);
	}
	sd->status.account_reg2_num = j;
//	printf("chrif: accountreg2\n");

	return 0;
}

/*==========================================
 * ������񓯊��v��
 *------------------------------------------
 */
int chrif_divorce(int char_id, int partner_id)
{
	struct map_session_data *sd = NULL;

	if (!char_id || !partner_id)
		return 0;

	nullpo_retr(0, sd = map_nick2sd(map_charid2nick(partner_id)));
	if (sd->status.partner_id == char_id) {
		int i;
		//����(�����͊��ɃL�����������Ă��锤�Ȃ̂�)
		sd->status.partner_id = 0;

		//�����̌����w�ւ𔍒D
		for(i = 0; i < MAX_INVENTORY; i++)
			if (sd->status.inventory[i].nameid == WEDDING_RING_M || sd->status.inventory[i].nameid == WEDDING_RING_F)
				pc_delitem(sd, i, 1, 0);
	}

	return 0;
}

/*==========================================
 * Disconnection of a player (account has been deleted in login-server) by [Yor]
 *------------------------------------------
 */
int chrif_accountdeletion(int fd)
{
	int acc;
	struct map_session_data *sd;

	acc = RFIFOL(fd,2);
	if (battle_config.etc_log)
		printf("chrif_accountdeletion %d.\n", acc);
	sd = map_id2sd(acc);
	if (acc > 0) {
		if (sd != NULL) {
			sd->login_id1++; // change identify, because if player come back in char within the 5 seconds, he can change its characters
			clif_displaymessage(sd->fd, "Your account has been deleted (disconnection)...");
			clif_setwaitclose(sd->fd); // forced to disconnect for the change
		}
	} else {
		if (sd != NULL)
			printf("chrif_accountdeletion failed - player not online.\n");
	}

	return 0;
}

/*==========================================
 * Disconnection of a player (account has been banned of has a status, from login-server) by [Yor]
 *------------------------------------------
 */
int chrif_accountban(int fd)
{
	int acc;
	struct map_session_data *sd;

	acc = RFIFOL(fd,2);
	if (battle_config.etc_log)
		printf("chrif_accountban %d.\n", acc);
	sd = map_id2sd(acc);
	if (acc > 0) {
		if (sd != NULL) {
			sd->login_id1++; // change identify, because if player come back in char within the 5 seconds, he can change its characters
			if (RFIFOB(fd,6) == 0) { // 0: change of statut, 1: ban
				switch (RFIFOL(fd,7)) { // status or final date of a banishment
				case 1:   // 0 = Unregistered ID
					clif_displaymessage(sd->fd, "Your account has 'Unregistered'.");
					break;
				case 2:   // 1 = Incorrect Password
					clif_displaymessage(sd->fd, "Your account has an 'Incorrect Password'...");
					break;
				case 3:   // 2 = This ID is expired
					clif_displaymessage(sd->fd, "Your account has expired.");
					break;
				case 4:   // 3 = Rejected from Server
					clif_displaymessage(sd->fd, "Your account has been rejected from server.");
					break;
				case 5:   // 4 = You have been blocked by the GM Team
					clif_displaymessage(sd->fd, "Your account has been blocked by the GM Team.");
					break;
				case 6:   // 5 = Your Game's EXE file is not the latest version
					clif_displaymessage(sd->fd, "Your Game's EXE file is not the latest version.");
					break;
				case 7:   // 6 = Your are Prohibited to log in until %s
					clif_displaymessage(sd->fd, "Your account has been prohibited to log in.");
					break;
				case 8:   // 7 = Server is jammed due to over populated
					clif_displaymessage(sd->fd, "Server is jammed due to over populated.");
					break;
				case 9:   // 8 = No MSG (actually, all states after 9 except 99 are No MSG, use only this)
					clif_displaymessage(sd->fd, "Your account has not more authorised.");
					break;
				case 100: // 99 = This ID has been totally erased
					clif_displaymessage(sd->fd, "Your account has been totally erased.");
					break;
				default:
					clif_displaymessage(sd->fd, "Your account has not more authorised.");
					break;
				}
			} else if (RFIFOB(fd,6) == 1) { // 0: change of statut, 1: ban
				time_t timestamp;
				char tmpstr[2048];
				timestamp = (time_t)RFIFOL(fd,7); // status or final date of a banishment
				strcpy(tmpstr, "Your account has been banished until ");
				strftime(tmpstr + strlen(tmpstr), 24, "%d-%m-%Y %H:%M:%S", localtime(&timestamp));
				clif_displaymessage(sd->fd, tmpstr);
			}
			clif_setwaitclose(sd->fd); // forced to disconnect for the change
		}
	} else {
		if (sd != NULL)
			printf("chrif_accountban failed - player not online.\n");
	}

	return 0;
}

/*==========================================
 * �L�����N�^�[�ؒf�ʒm
 *------------------------------------------
 */
int chrif_chardisconnect(struct map_session_data *sd)
{
	nullpo_retr(-1, sd);

	if(char_fd < 1 || session[char_fd] == NULL || !chrif_isconnect())
		return -1;

	WFIFOW(char_fd,0)=0x2b18;
	WFIFOL(char_fd,2)=sd->status.account_id;
	WFIFOL(char_fd,6)=sd->status.char_id;
	WFIFOSET(char_fd,10);
	//printf("chrif: char disconnect: %d %s\n",sd->bl.id,sd->status.name);
	return 0;

}

/*==========================================
 * Receiving GM accounts and their levels from char-server by [Yor]
 *------------------------------------------
 */
int chrif_recvgmaccounts(int fd)
{
	sprintf(tmp_output,"From login-server: receiving information of '"CL_WHITE"%d"CL_RESET"' GM accounts.\n", pc_read_gm_account(fd));
	ShowInfo(tmp_output);
	memset(tmp_output,'\0',sizeof(tmp_output));
	return 0;
}

/*==========================================
 * Request to reload GM accounts and their levels: send to char-server by [Yor]
 *------------------------------------------
 */
int chrif_reloadGMdb(void)
{
   	if (char_fd < 1 || session[char_fd] == NULL || !chrif_isconnect() )
		return -1;

	WFIFOW(char_fd,0) = 0x2af7;
	WFIFOSET(char_fd, 2);

	return 0;
}

/*==========================================
 * Send rates and motd to char server [Wizputer]
 *------------------------------------------
 */
 int chrif_ragsrvinfo(int base_rate, int job_rate, int drop_rate)
{
	char buf[256];
	FILE *fp;
	int i;

	if (char_fd < 1 || session[char_fd] == NULL || !chrif_isconnect() )
		return -1;

	WFIFOW(char_fd,0) = 0x2b16;
	WFIFOW(char_fd,2) = base_rate;
	WFIFOW(char_fd,4) = job_rate;
	WFIFOW(char_fd,6) = drop_rate;

	if ((fp = fopen(motd_txt, "r")) != NULL) {
		if (fgets(buf, 250, fp) != NULL) {
			for(i = 0; buf[i]; i++) {
				if (buf[i] == '\r' || buf[i] == '\n') {
					buf[i] = 0;
					break;
				}
			}
			WFIFOW(char_fd,8) = sizeof(buf) + 10;
			memcpy(WFIFOP(char_fd,10), buf, sizeof(buf));
		}
		fclose(fp);
	} else {
		WFIFOW(char_fd,8) = sizeof(buf) + 10;
		memcpy(WFIFOP(char_fd,10), buf, sizeof(buf));
	}
	WFIFOSET(char_fd,WFIFOW(char_fd,8));

	return 0;
}

/*=========================================
 * Tell char-server charcter disconnected [Wizputer]
 *-----------------------------------------
 */

int chrif_char_offline(struct map_session_data *sd)
{
	if (char_fd < 1 || session[char_fd] == NULL || !chrif_isconnect())
		return -1;

	WFIFOW(char_fd,0) = 0x2b17;
	WFIFOL(char_fd,2) = sd->status.char_id;
	WFIFOL(char_fd,6) = sd->status.account_id;
	WFIFOSET(char_fd,10);

	return 0;
}

/*=========================================
 * Tell char-server to reset all chars offline [Wizputer]
 *-----------------------------------------
 */
int chrif_flush_fifo(void) {
	if (char_fd < 1 || session[char_fd] == NULL || !chrif_isconnect())
		return -1;

	set_nonblocking(char_fd, 0);
	flush_fifos();
	set_nonblocking(char_fd, 1);

	return 0;
}

/*=========================================
 * Tell char-server to reset all chars offline [Wizputer]
 *-----------------------------------------
 */
int chrif_char_reset_offline(void) {
	if (char_fd < 1 || session[char_fd] == NULL || !chrif_isconnect())
		return -1;

	WFIFOW(char_fd,0) = 0x2b18;
	WFIFOSET(char_fd,2);

	return 0;
}

/*=========================================
 * Tell char-server charcter is online [Wizputer]
 *-----------------------------------------
 */

int chrif_char_online(struct map_session_data *sd)
{
	if (char_fd < 1 || session[char_fd] == NULL || !chrif_isconnect())
		return -1;

	WFIFOW(char_fd,0) = 0x2b19;
	WFIFOL(char_fd,2) = sd->status.char_id;
	WFIFOL(char_fd,6) = sd->status.account_id;
	WFIFOSET(char_fd,10);

	return 0;
}

/*==========================================
 *
 *------------------------------------------
 */
int chrif_disconnect_sub(struct map_session_data* sd,va_list va) {
	clif_authfail_fd(sd->fd,1);
	map_quit(sd);
	return 0;
}

int chrif_disconnect(int fd) {
	if(fd == char_fd) {
		char_fd = 0;
		sprintf(tmp_output,"Map Server disconnected from Char Server.\n\n");
		ShowWarning(tmp_output);
		clif_foreachclient(chrif_disconnect_sub);
		chrif_connected = 0;
		// ����map �I�̃f�[�^������
		map_eraseallipport();
	}
	close(fd);
	return 0;
}

/*==========================================
 *
 *------------------------------------------
 */
int chrif_parse(int fd)
{
	int packet_len, cmd;
	// only char-server can have an access to here.
	// so, if it isn't the char-server, we disconnect the session (fd != char_fd).
	if (fd != char_fd || session[fd]->eof) {
		if (fd == char_fd && chrif_connected == 1) {
			chrif_disconnect (fd);
//			check_connect_char_server(0, 0, 0, 0);
		}
		close(fd);
		delete_session(fd);
		return 0;
	}

	while (RFIFOREST(fd) >= 2) {
		cmd = RFIFOW(fd,0);
		if (cmd < 0x2af8 || cmd >= 0x2af8 + (sizeof(packet_len_table) / sizeof(packet_len_table[0])) ||
		    packet_len_table[cmd-0x2af8] == 0) {

			int r = intif_parse(fd); // intif�ɓn��

			if (r == 1) continue;	// intif�ŏ�������
			if (r == 2) return 0;	// intif�ŏ����������A�f�[�^������Ȃ�

			session[fd]->eof = 1;
			return 0;
		}
		packet_len = packet_len_table[cmd-0x2af8];
		if (packet_len == -1) {
			if (RFIFOREST(fd) < 4)
				return 0;
			packet_len = RFIFOW(fd,2);
		}
		if (RFIFOREST(fd) < packet_len)
			return 0;

		switch(cmd) {
		case 0x2af9: chrif_connectack(fd); break;
		case 0x2afb: chrif_sendmapack(fd); break;
		case 0x2afd: pc_authok(RFIFOL(fd,4), RFIFOL(fd,8), (time_t)RFIFOL(fd,12), (struct mmo_charstatus*)RFIFOP(fd,16)); break;
		case 0x2afe: pc_authfail(RFIFOL(fd,2)); break;
		case 0x2b00: map_setusers(RFIFOL(fd,2)); break;
		case 0x2b03: clif_charselectok(RFIFOL(fd,2)); break;
		case 0x2b04: chrif_recvmap(fd); break;
		case 0x2b06: chrif_changemapserverack(fd); break;
		case 0x2b09: map_addchariddb(RFIFOL(fd,2), (char*)RFIFOP(fd,6)); break;
		case 0x2b0b: chrif_changedgm(fd); break;
		case 0x2b0d: chrif_changedsex(fd); break;
		case 0x2b0f: chrif_char_ask_name_answer(fd); break;
		case 0x2b11: chrif_accountreg2(fd); break;
		case 0x2b12: chrif_divorce(RFIFOL(fd,2), RFIFOL(fd,6)); break;
		case 0x2b13: chrif_accountdeletion(fd); break;
		case 0x2b14: chrif_accountban(fd); break;
		case 0x2b15: chrif_recvgmaccounts(fd); break;

		default:
			if (battle_config.error_log)
				printf("chrif_parse : unknown packet %d %d\n", fd, RFIFOW(fd,0));
			session[fd]->eof = 1;
			return 0;
		}
		RFIFOSKIP(fd, packet_len);
	}

	return 0;
}

/*==========================================
 * timer�֐�
 * ������map�I�Ɍq�����Ă���N���C�A���g�l����char�I�֑���
 *------------------------------------------
 */
int send_users_tochar(int tid, unsigned int tick, int id, int data) {
	int users = 0, i;
	struct map_session_data *sd;

	if (char_fd < 1 || session[char_fd] == NULL || !chrif_isconnect()) // Thanks to Toster
		return 0;

	WFIFOW(char_fd,0) = 0x2aff;
	for (i = 0; i < fd_max; i++) {
		if (session[i] && (sd = (struct map_session_data*)session[i]->session_data) && sd->state.auth &&
		    !((battle_config.hide_GM_session || (sd->status.option & OPTION_HIDE)) && pc_isGM(sd))) {
			WFIFOL(char_fd,6+4*users) = sd->status.char_id;
			users++;
		}
	}
	WFIFOW(char_fd,2) = 6 + 4 * users;
	WFIFOW(char_fd,4) = users;
	WFIFOSET(char_fd,6+4*users);

	return 0;
}

/*==========================================
 * timer�֐�
 * char�I�Ƃ̐ڑ����m�F���A�����؂�Ă�����ēx�ڑ�����
 *------------------------------------------
 */
int check_connect_char_server(int tid, unsigned int tick, int id, int data) {
	static int displayed = 0;
	if (char_fd <= 0 || session[char_fd] == NULL) {
		if (!displayed) {
			ShowStatus("Attempting to connect to Char Server. Please wait.\n");
			displayed = 1;
		}
		chrif_state = 0;
		char_fd = make_connection(char_ip, char_port);
		session[char_fd]->func_parse = chrif_parse;
		realloc_fifo(char_fd, FIFOSIZE_SERVERLINK, FIFOSIZE_SERVERLINK);

		chrif_connect(char_fd);
		chrif_connected = chrif_isconnect();
#ifndef TXT_ONLY
		srvinfo = 0;
	} else {
		if (srvinfo == 0) {
			chrif_ragsrvinfo(battle_config.base_exp_rate, battle_config.job_exp_rate, battle_config.item_rate_common);
			srvinfo = 1;
		}
#endif /* not TXT_ONLY */
	}
	if (chrif_isconnect()) displayed = 0;
	return 0;
}
/*==========================================
 * �I��
 *------------------------------------------
 */
int do_final_chrif(void)
{
	delete_session(char_fd);
	return 0;
}

/*==========================================
 *
 *------------------------------------------
 */
int do_init_chrif(void) {
	add_timer_func_list(check_connect_char_server, "check_connect_char_server");
	add_timer_func_list(send_users_tochar, "send_users_tochar");
	add_timer_interval(gettick() + 1000, check_connect_char_server, 0, 0, 10 * 1000);
	add_timer_interval(gettick() + 1000, send_users_tochar, 0, 0, 5 * 1000);

	return 0;
}