path: root/mbbsd/talk.c

/* $Id: talk.c,v 1.109 2003/05/16 08:25:10 ptt Exp $ */
#include "bbs.h"

#define QCAST   int (*)(const void *, const void *)

static char    *IdleTypeTable[] = {
    "偶在花呆啦", "情人來電", "覓食中", "拜見周公", "假死狀態", "我在思考"
};
static char    *sig_des[] = {
    "鬥雞", "聊天", "", "下棋", "象棋", "暗棋"
};

#define MAX_SHOW_MODE 4
#define M_INT 15        /* monitor mode update interval */
#define P_INT 20        /* interval to check for page req. in
                 * talk/chat */
#define BOARDFRI  1

typedef struct talkwin_t {
    int             curcol, curln;
    int             sline, eline;
}               talkwin_t;

typedef struct pickup_t {
    userinfo_t     *ui;
    int             friend, uoffset;
}               pickup_t;

//extern int    bind( /* int,struct sockaddr *, int */ );
//extern char  *getuserid();

/* 記錄 friend 的 user number */
//
#define PICKUP_WAYS     7

static char    *fcolor[11] = {
    "", "\033[36m", "\033[32m", "\033[1;32m",
    "\033[33m", "\033[1;33m", "\033[1;37m", "\033[1;37m",
    "\033[31m", "\033[1;35m", "\033[1;36m"
};
static char     save_page_requestor[40];
static char     page_requestor[40];
static char     description[30];
static FILE    *flog;

int
iswritable_stat(userinfo_t * uentp, int fri_stat)
{
    if (uentp == currutmp)
    return 0;

    if (HAS_PERM(PERM_SYSOP))
    return 1;

    if (!HAS_PERM(PERM_LOGINOK))
    return 0;

    return (uentp->pager != 3 && (fri_stat & HFM || uentp->pager != 4));
}

int
isvisible_stat(userinfo_t * me, userinfo_t * uentp, int fri_stat)
{
    if (uentp->userid[0] == 0)
    return 0;

    if (PERM_HIDE(uentp) && !(PERM_HIDE(me)))   /* 對方紫色隱形而你沒有 */
    return 0;
    else if ((me->userlevel & PERM_SYSOP) ||
         ((fri_stat & HRM) && (fri_stat & HFM)))
    /* 站長看的見任何人 */
    return 1;

    if (uentp->invisible && !(me->userlevel & PERM_SEECLOAK))
    return 0;

    return !(fri_stat & HRM);
}

char           *
modestring(userinfo_t * uentp, int simple)
{
    static char     modestr[40];
    char    *notonline = "不在站上";
    register int    mode = uentp->mode;
    register char  *word;
    int             fri_stat;

    /* for debugging */
    if (mode >= MAX_MODES) {
    syslog(LOG_WARNING, "what!? mode = %d", mode);
    word = ModeTypeTable[mode % MAX_MODES];
    } else
    word = ModeTypeTable[mode];
    fri_stat = friend_stat(currutmp, uentp);
    if (!(HAS_PERM(PERM_SYSOP) || HAS_PERM(PERM_SEECLOAK)) &&
    ((uentp->invisible || (fri_stat & HRM)) &&
     !((fri_stat & HFM) && (fri_stat & HRM))))
    return notonline;
    else if (mode == EDITING) {
    snprintf(modestr, sizeof(modestr), "E:%s",
        ModeTypeTable[uentp->destuid < EDITING ? uentp->destuid :
                  EDITING]);
    word = modestr;
    } else if (!mode && *uentp->chatid == 1) {
    if (!simple)
        snprintf(modestr, sizeof(modestr),
             "回應 %s", getuserid(uentp->destuid));
    else
        snprintf(modestr, sizeof(modestr), "回應呼叫");
    } else if (!mode && *uentp->chatid == 2)
    if (uentp->msgcount < 10) {
        char           *cnum[10] =
        {"", "一", "兩", "三", "四", "五", "六", "七",
        "八", "九"};
        snprintf(modestr, sizeof(modestr),
             "中%s顆水球", cnum[uentp->msgcount]);
    } else
        snprintf(modestr, sizeof(modestr), "不行了 @_@");
    else if (!mode && *uentp->chatid == 3)
    snprintf(modestr, sizeof(modestr), "水球準備中");
    else if (!mode)
    return (uentp->destuid == 6) ? uentp->chatid :
        IdleTypeTable[(0 <= uentp->destuid && uentp->destuid < 6) ?
              uentp->destuid : 0];
    else if (simple)
    return word;
    else if (uentp->in_chat && mode == CHATING)
    snprintf(modestr, sizeof(modestr), "%s (%s)", word, uentp->chatid);
    else if (mode == TALK) {
    if (!isvisible_uid(uentp->destuid)) /* Leeym 對方(紫色)隱形 */
        snprintf(modestr, sizeof(modestr), "%s", "交談 空氣");
    /* Leeym * 大家自己發揮吧！ */
    else
        snprintf(modestr, sizeof(modestr),
             "%s %s", word, getuserid(uentp->destuid));
    } else if (mode == M_FIVE) {
    if (!isvisible_uid(uentp->destuid))
        snprintf(modestr, sizeof(modestr), "%s", "五子棋 空氣");
    else
        snprintf(modestr, sizeof(modestr), "%s %s", word, getuserid(uentp->destuid));
    } else if (mode == CHC) {
    if (isvisible_uid(uentp->destuid))
        snprintf(modestr, sizeof(modestr), "%s", "下象棋");
    else
        snprintf(modestr, sizeof(modestr),
             "下象棋 %s", getuserid(uentp->destuid));
    } else if (mode != PAGE && mode != TQUERY)
    return word;
    else
    snprintf(modestr, sizeof(modestr),
         "%s %s", word, getuserid(uentp->destuid));

    return (modestr);
}

int
set_friend_bit(userinfo_t * me, userinfo_t * ui)
{
    int             unum, *myfriends, hit = 0, n;

    /* 判斷對方是否為我的朋友 ? */
    unum = ui->uid;
    myfriends = me->friend;
    while ((n = *myfriends++)) {
    if (unum == n) {
        hit = IFH;
        break;
    }
    }

    /* 判斷我是否為對方的朋友 ? */
    myfriends = ui->friend;
    while ((unum = *myfriends++)) {
    if (unum == me->uid) {
        hit |= HFM;
        break;
    }
    }

    /* 判斷對方是否為我的仇人 ? */

    unum = ui->uid;
    myfriends = me->reject;
    while ((n = *myfriends++)) {
    if (unum == n) {
        hit |= IRH;
        break;
    }
    }

    /* 判斷我是否為對方的仇人 ? */
    myfriends = ui->reject;
    while ((unum = *myfriends++)) {
    if (unum == me->uid) {
        hit |= HRM;
        break;
    }
    }
    return hit;
}

int
reverse_friend_stat(int stat)
{
    int             stat1 = 0;
    if (stat & IFH)
    stat1 |= HFM;
    if (stat & IRH)
    stat1 |= HRM;
    if (stat & HFM)
    stat1 |= IFH;
    if (stat & HRM)
    stat1 |= IRH;
    if (stat & IBH)
    stat1 |= IBH;
    return stat1;
}

int
login_friend_online(void)
{
    userinfo_t     *uentp;
    int             i, stat, stat1;
    int             offset = (int)(currutmp - &SHM->uinfo[0]);
    for (i = 0; i < SHM->UTMPnumber && currutmp->friendtotal < MAX_FRIEND; i++) {
    uentp = (SHM->sorted[SHM->currsorted][0][i]);
    if (uentp && uentp->uid && (stat = set_friend_bit(currutmp, uentp))) {
        stat1 = reverse_friend_stat(stat);
        stat <<= 24;
        stat |= (int)(uentp - &SHM->uinfo[0]);
        currutmp->friend_online[currutmp->friendtotal++] = stat;
        if (uentp != currutmp && uentp->friendtotal < MAX_FRIEND) {
        stat1 <<= 24;
        stat1 |= offset;
        uentp->friend_online[uentp->friendtotal++] = stat1;
        }
    }
    }
    return 0;
}

int
logout_friend_online(userinfo_t * utmp)
{
    int             i, j, k;
    int             offset = (int)(utmp - &SHM->uinfo[0]);
    userinfo_t     *ui;
    while (utmp->friendtotal > 0) {
    i = utmp->friendtotal - 1;
    j = (utmp->friend_online[i] & 0xFFFFFF);
    utmp->friend_online[i] = 0;
    ui = &SHM->uinfo[j];
    if (ui->pid && ui != utmp) {
        for (k = 0; k < ui->friendtotal && k < MAX_FRIEND &&
         (int)(ui->friend_online[k] & 0xFFFFFF) != offset; k++);
        if (k < ui->friendtotal) {
        ui->friendtotal--;
        ui->friend_online[k] = ui->friend_online[ui->friendtotal];
        ui->friend_online[ui->friendtotal] = 0;
        }
    }
    utmp->friendtotal--;
    utmp->friend_online[utmp->friendtotal] = 0;
    }
    return 0;
}


int
friend_stat(userinfo_t * me, userinfo_t * ui)
{
    int             i, j, hit = 0;
    /* 看板好友 */
    if (me->brc_id && ui->brc_id == me->brc_id) {
    hit = IBH;
    }
    for (i = 0; me->friend_online[i] && i < MAX_FRIEND; i++) {
    j = (me->friend_online[i] & 0xFFFFFF);
    if (0 <= j && j < MAX_ACTIVE && ui == &SHM->uinfo[j]) {
        hit |= me->friend_online[i] >> 24;
        break;
    }
    }
    if (PERM_HIDE(ui))
    return hit & ST_FRIEND;
    return hit;
}

int
isvisible_uid(int tuid)
{
    userinfo_t     *uentp;

    if (!tuid || !(uentp = search_ulist(tuid)))
    return 1;
    return isvisible(currutmp, uentp);
}

/* 真實動作 */
static void
my_kick(userinfo_t * uentp)
{
    char            genbuf[200];

    getdata(1, 0, msg_sure_ny, genbuf, 4, LCECHO);
    clrtoeol();
    if (genbuf[0] == 'y') {
    snprintf(genbuf, sizeof(genbuf),
         "%s (%s)", uentp->userid, uentp->username);
    log_usies("KICK ", genbuf);
    if ((uentp->pid <= 0 || kill(uentp->pid, SIGHUP) == -1) && (errno == ESRCH))
        purge_utmp(uentp);
    outs("踢出去囉");
    } else
    outs(msg_cancel);
    pressanykey();
}

static void
chicken_query(char *userid)
{
    char            buf[100];

    if (getuser(userid)) {
    if (xuser.mychicken.name[0]) {
        time_diff(&(xuser.mychicken));
        if (!isdeadth(&(xuser.mychicken))) {
        show_chicken_data(&(xuser.mychicken), NULL);
        snprintf(buf, sizeof(buf),
             "\n\n以上是 %s 的寵物資料..", userid);
        outs(buf);
        }
    } else {
        move(1, 0);
        clrtobot();
        snprintf(buf, sizeof(buf), "\n\n%s 並沒有養寵物..", userid);
        outs(buf);
    }
    pressanykey();
    }
}

int
my_query(char *uident)
{
    userec_t        muser;
    int             tuid, i, fri_stat = 0;
    unsigned long int j;
    userinfo_t     *uentp;
    const char *money[10] =
    {"債台高築", "赤貧", "清寒", "普通", "小康",
    "小富", "中富", "大富翁", "富可敵國", "比爾蓋\天"};
    const char *sex[8] =
    {MSG_BIG_BOY, MSG_BIG_GIRL,
    MSG_LITTLE_BOY, MSG_LITTLE_GIRL,
    MSG_MAN, MSG_WOMAN, MSG_PLANT, MSG_MIME};

    if ((tuid = getuser(uident))) {
    memcpy(&muser, &xuser, sizeof(muser));
    move(1, 0);
    clrtobot();
    move(1, 0);
    setutmpmode(TQUERY);
    currutmp->destuid = tuid;

    j = muser.money;
    for (i = 0; i < 10 && j > 10; i++)
        j /= 10;
    prints("《ＩＤ暱稱》%s(%s)%*s《經濟狀況》%s\n",
           muser.userid,
           muser.username,
           26 - strlen(muser.userid) - strlen(muser.username), "",
           money[i]);
    prints("《上站次數》%d次", muser.numlogins);
    move(2, 40);
    prints("《文章篇數》%d篇\n", muser.numposts);

    if ((uentp = (userinfo_t *) search_ulist(tuid)))
        fri_stat = friend_stat(currutmp, uentp);
    prints("\033[1;33m《目前動態》%-28.28s\033[m",
           (uentp && isvisible_stat(currutmp, uentp, fri_stat)) ?
           modestring(uentp, 0) : "不在站上");

    outs(((uentp && uentp->mailalert) || load_mailalert(muser.userid))
         ? "《私人信箱》有新進信件還沒看\n" :
         "《私人信箱》所有信件都看過了\n");
    prints("《上次上站》%-28.28s《上次故鄉》%s\n",
           Cdate(&muser.lastlogin),
           (muser.lasthost[0] ? muser.lasthost : "(不詳)"));
    if ((uentp && ((fri_stat & HFM) || strcmp(muser.userid,cuser.userid) == 0) && !uentp->invisible))
        prints("《 性  別 》%-28.28s《私有財產》%d 銀兩\n",
           sex[muser.sex % 8],
           muser.money);
    prints("《五子棋戰績》%3d 勝 %3d 敗 %3d 和      "
           "《象棋戰績》%3d 勝 %3d 敗 %3d 和",
           muser.five_win, muser.five_lose, muser.five_tie,
           muser.chc_win, muser.chc_lose, muser.chc_tie);
    showplans(uident);
    pressanykey();
    return FULLUPDATE;
    }
    return DONOTHING;
}

static char     t_last_write[200] = "";

void
water_scr(water_t * tw, int which, char type)
{
    if (type == 1) {
    int             i;
    int             colors[] = {33, 37, 33, 37, 33};
    move(8 + which, 28);
    prints(" ");
    move(8 + which, 28);
    prints("\033[1;37;45m  %c %-14s \033[0m",
           tw->uin ? ' ' : 'x',
           tw->userid);
    for (i = 0; i < 5; ++i) {
        move(16 + i, 4);
        prints(" ");
        move(16 + i, 4);
        if (tw->msg[(tw->top - i + 4) % 5].last_call_in[0] != 0)
        prints("\033[0m   \033[1;%d;44m★%-64s\033[0m   \n",
               colors[i],
               tw->msg[(tw->top - i + 4) % 5].last_call_in);
        else
        prints("\033[0m　\n");
    }

    move(21, 4);
    prints(" ");
    move(21, 4);
    prints("\033[0m   \033[1;37;46m%-66s\033[0m   \n",
           tw->msg[5].last_call_in);

    move(0, 0);
    prints(" ");
    move(0, 0);
    prints("\033[0m反擊 %s:", tw->userid);
    clrtoeol();
    move(0, strlen(tw->userid) + 6);
    } else {
    move(8 + which, 28);
    prints("123456789012345678901234567890");
    move(8 + which, 28);
    prints("\033[1;37;44m  %c %-13s　\033[0m",
           tw->uin ? ' ' : 'x',
           tw->userid);
    }
}

void
my_write2(void)
{
    int             i, ch, currstat0;
    char            genbuf[256], msg[80], done = 0, c0, which;
    water_t        *tw;
    unsigned char   mode0;

    if (swater[0] == NULL)
    return;
    wmofo = 0;
    currstat0 = currstat;
    c0 = currutmp->chatid[0];
    mode0 = currutmp->mode;
    currutmp->mode = 0;
    currutmp->chatid[0] = 3;
    currstat = DBACK;

    //init screen
    move(7, 28);
    prints("\033[1;33;46m ↑ 水球反擊對象 ↓\033[0m");
    for (i = 0; i < 5; ++i)
    if (swater[i] == NULL || swater[i]->pid == 0)
        break;
    else {
        if (swater[i]->uin &&
        (swater[i]->pid != swater[i]->uin->pid ||
         swater[i]->userid[0] != swater[i]->uin->userid[0]))
        swater[i]->uin = (userinfo_t *) search_ulist_pid(swater[i]->pid);
        water_scr(swater[i], i, 0);
    }
    move(15, 4);
    prints("\033[0m \033[1;35m◇\033[1;36m────────────────"
       "─────────────────\033[1;35m◇\033[0m ");
    move(22, 4);
    prints(" \033[1;35m◇\033[1;36m────────────────"
       "─────────────────\033[1;35m◇\033[0m ");
    water_scr(swater[0], 0, 1);
    refresh();

    which = 0;
    do {
    switch ((ch = igetkey())) {
    case Ctrl('T'):
    case KEY_UP:
        if (water_usies != 1) {
        water_scr(swater[(int)which], which, 0);
        which = (which - 1 + water_usies) % water_usies;
        water_scr(swater[(int)which], which, 1);
        refresh();
        }
        break;

    case KEY_DOWN:
    case Ctrl('R'):
        if (water_usies != 1) {
        water_scr(swater[(int)which], which, 0);
        which = (which + 1 + water_usies) % water_usies;
        water_scr(swater[(int)which], which, 1);
        refresh();
        }
        break;

    case KEY_LEFT:
        done = 1;
        break;

    default:
        done = 1;
        tw = swater[(int)which];

        if (!tw->uin)
        break;

        if (ch != '\r' && ch != '\n') {
        msg[0] = ch, msg[1] = 0;
        } else
        msg[0] = 0;
        move(0, 0);
        prints("\033[m");
        clrtoeol();
        snprintf(genbuf, sizeof(genbuf), "攻擊 %s:", tw->userid);
        if (!oldgetdata(0, 0, genbuf, msg,
                80 - strlen(tw->userid) - 6, DOECHO))
        break;

        if (my_write(tw->pid, msg, tw->userid, 4, tw->uin))
        strncpy(tw->msg[5].last_call_in, t_last_write,
            sizeof(tw->msg[5].last_call_in));
        break;
    }
    } while (!done);

    currstat = currstat0;
    currutmp->chatid[0] = c0;
    currutmp->mode = mode0;
    if (wmofo == 1)
    write_request(0);
    wmofo = -1;
}

/*
 * 被呼叫的時機: 1. 丟群組水球 flag = 1 (pre-edit) 2. 回水球     flag = 0 3.
 * 上站aloha  flag = 2 (pre-edit) 4. 廣播       flag = 3 if SYSOP, otherwise
 * flag = 1 (pre-edit) 5. 丟水球     flag = 0 6. my_write2  flag = 4
 * (pre-edit) but confirm
 */
int
my_write(pid_t pid, char *prompt, char *id, int flag, userinfo_t * puin)
{
    int             len, currstat0 = currstat, fri_stat;
    char            msg[80], destid[IDLEN + 1];
    char            genbuf[200], buf[200], c0 = currutmp->chatid[0];
    unsigned char   mode0 = currutmp->mode;
    struct tm      *ptime;
    userinfo_t     *uin;
    uin = (puin != NULL) ? puin : (userinfo_t *) search_ulist_pid(pid);
    strlcpy(destid, id, sizeof(destid));

    if (!uin && !(flag == 0 && water_which->count > 0)) {
    outmsg("\033[1;33;41m糟糕! 對方已落跑了(不在站上)! \033[37m~>_<~\033[m");
    clrtoeol();
    refresh();
    watermode = -1;
    return 0;
    }
    currutmp->mode = 0;
    currutmp->chatid[0] = 3;
    currstat = DBACK;

    ptime = localtime(&now);

    if (flag == 0) {
    /* 一般水球 */
    watermode = 0;
    if (!(len = getdata(0, 0, prompt, msg, 56, DOECHO))) {
        outmsg("\033[1;33;42m算了! 放你一馬...\033[m");
        clrtoeol();
        refresh();
        currutmp->chatid[0] = c0;
        currutmp->mode = mode0;
        currstat = currstat0;
        watermode = -1;
        return 0;
    }
    if (watermode > 0) {
        int             i;

        i = (water_which->top - watermode + MAX_REVIEW) % MAX_REVIEW;
        uin = (userinfo_t *) search_ulist_pid(water_which->msg[i].pid);
        strlcpy(destid, water_which->msg[i].userid, sizeof(destid));
    }
    } else {
    /* pre-edit 的水球 */
    strlcpy(msg, prompt, sizeof(msg));
    len = strlen(msg);
    }

    strip_ansi(msg, msg, 0);
    if (uin && *uin->userid && (flag == 0 || flag == 4)) {
    snprintf(buf, sizeof(buf), "丟給 %s : %s [Y/n]?", uin->userid, msg);
    getdata(0, 0, buf, genbuf, 3, LCECHO);
    if (genbuf[0] == 'n') {
        outmsg("\033[1;33;42m算了! 放你一馬...\033[m");
        clrtoeol();
        refresh();
        currutmp->chatid[0] = c0;
        currutmp->mode = mode0;
        currstat = currstat0;
        watermode = -1;
        return 0;
    }
    }
    watermode = -1;
    if (!uin || !*uin->userid || strcasecmp(destid, uin->userid)) {
    outmsg("\033[1;33;41m糟糕! 對方已落跑了(不在站上)! \033[37m~>_<~\033[m");
    clrtoeol();
    refresh();
    currutmp->chatid[0] = c0;
    currutmp->mode = mode0;
    currstat = currstat0;
    return 0;
    }
    fri_stat = friend_stat(currutmp, uin);
    if (flag != 2) {        /* aloha 的水球不用存下來 */
    /* 存到自己的水球檔 */
    if (!fp_writelog) {
        sethomefile(genbuf, cuser.userid, fn_writelog);
        fp_writelog = fopen(genbuf, "a");
    }
    if (fp_writelog) {
        fprintf(fp_writelog, "To %s: %s [%s]\n",
            uin->userid, msg, Cdatelite(&now));
        snprintf(t_last_write, 66, "To %s: %s", uin->userid, msg);
    }
    }
    if (flag == 3 && uin->msgcount) {
    /* 不懂 */
    uin->destuip = currutmp - &SHM->uinfo[0];
    uin->sig = 2;
    if (uin->pid > 0)
        kill(uin->pid, SIGUSR1);
    } else if (flag != 2 &&
           !HAS_PERM(PERM_SYSOP) &&
           (uin->pager == 3 ||
        uin->pager == 2 ||
        (uin->pager == 4 &&
         !(fri_stat & HFM))))
    outmsg("\033[1;33;41m糟糕! 對方防水了! \033[37m~>_<~\033[m");
    else {
    if (uin->msgcount < MAX_MSGS) {
        unsigned char   pager0 = uin->pager;

        uin->pager = 2;
        uin->msgs[uin->msgcount].pid = currpid;
        strlcpy(uin->msgs[uin->msgcount].userid, cuser.userid,
            sizeof(uin->msgs[uin->msgcount].userid));
        strlcpy(uin->msgs[uin->msgcount++].last_call_in, msg,
            sizeof(uin->msgs[uin->msgcount].last_call_in));
        uin->pager = pager0;
    } else if (flag != 2)
        outmsg("\033[1;33;41m糟糕! 對方不行了! (收到太多水球) \033[37m@_@\033[m");

    if (uin->msgcount >= 1 && (uin->pid <= 0 || kill(uin->pid, SIGUSR2) == -1) && flag != 2)
        outmsg("\033[1;33;41m糟糕! 沒打中! \033[37m~>_<~\033[m");
    else if (uin->msgcount == 1 && flag != 2)
        outmsg("\033[1;33;44m水球砸過去了! \033[37m*^o^*\033[m");
    else if (uin->msgcount > 1 && uin->msgcount < MAX_MSGS && flag != 2)
        outmsg("\033[1;33;44m再補上一粒! \033[37m*^o^*\033[m");
    }

    clrtoeol();
    refresh();

    currutmp->chatid[0] = c0;
    currutmp->mode = mode0;
    currstat = currstat0;
    return 1;
}

void
t_display_new(void)
{
    static int      t_display_new_flag = 0;
    int             i, off = 2;
    if (t_display_new_flag)
    return;
    else
    t_display_new_flag = 1;

    if (WATERMODE(WATER_ORIG))
    water_which = &water[0];
    else
    off = 3;

    if (water[0].count && watermode > 0) {
    move(1, 0);
    outs("───────水─球─回─顧───");
    outs(WATERMODE(WATER_ORIG) ?
         "──────用[Ctrl-R Ctrl-T]鍵切換─────" :
         "用[Ctrl-R Ctrl-T Ctrl-F Ctrl-G ]鍵切換────");
    if (WATERMODE(WATER_NEW)) {
        move(2, 0);
        clrtoeol();
        for (i = 0; i < 6; i++) {
        if (i > 0)
            if (swater[i - 1]) {

            if (swater[i - 1]->uin &&
                (swater[i - 1]->pid != swater[i - 1]->uin->pid ||
                 swater[i - 1]->userid[0] != swater[i - 1]->uin->userid[0]))
                swater[i - 1]->uin = (userinfo_t *) search_ulist_pid(swater[i - 1]->pid);
            prints("%s%c%-13.13s\033[m",
                   swater[i - 1] != water_which ? "" :
                   swater[i - 1]->uin ? "\033[1;33;47m" :
                   "\033[1;33;45m",
                   !swater[i - 1]->uin ? '#' : ' ',
                   swater[i - 1]->userid);
            } else
            prints("              ");
        else
            prints("%s 全部  \033[m",
               water_which == &water[0] ? "\033[1;33;47m " :
               " "
            );
        }
    }
    for (i = 0; i < water_which->count; i++) {
        int             a = (water_which->top - i - 1 + MAX_REVIEW) % MAX_REVIEW, len = 75 - strlen(water_which->msg[a].last_call_in)
        - strlen(water_which->msg[a].userid);
        if (len < 0)
        len = 0;

        move(i + (WATERMODE(WATER_ORIG) ? 2 : 3), 0);
        clrtoeol();
        if (watermode - 1 != i)
        prints("\033[1;33;46m %s \033[37;45m %s \033[m%*s",
               water_which->msg[a].userid,
               water_which->msg[a].last_call_in, len,
               "");
        else
        prints("\033[1;44m>\033[1;33;47m%s "
               "\033[37;45m %s \033[m%*s",
               water_which->msg[a].userid,
               water_which->msg[a].last_call_in,
               len, "");
    }

    if (t_last_write[0]) {
        move(i + off, 0);
        clrtoeol();
        prints(t_last_write);
        i++;
    }
    move(i + off, 0);
    outs("──────────────────────"
         "─────────────────");
    if (WATERMODE(WATER_NEW))
        while (i++ <= water[0].count) {
        move(i + off, 0);
        clrtoeol();
        }
    }
    t_display_new_flag = 0;
}

int
t_display(void)
{
    char            genbuf[200], ans[4];
    if (fp_writelog) {
    fclose(fp_writelog);
    fp_writelog = NULL;
    }
    setuserfile(genbuf, fn_writelog);
    if (more(genbuf, YEA) != -1) {
    move(b_lines - 4, 0);
    outs("\033[1;33;45m★現在 Ptt提供創新的水球整理程式★\033[m\n"
         "您將水球存至信箱後, 在【郵件選單】該信件前按 u,\n"
         "系統即會將您的水球紀錄重新整理後寄送給您唷! \n");
    getdata(b_lines - 1, 0, "清除(C) 移至備忘錄(M) 保留(R) (C/M/R)?[R]",
        ans, sizeof(ans), LCECHO);
    if (*ans == 'm') {
        fileheader_t    mymail;
        char            title[128], buf[80];

        sethomepath(buf, cuser.userid);
        stampfile(buf, &mymail);

        mymail.filemode = FILE_READ | FILE_HOLD;
        strlcpy(mymail.owner, "[備.忘.錄]", sizeof(mymail.owner));
        strlcpy(mymail.title, "熱線記錄", sizeof(mymail.title));
        sethomedir(title, cuser.userid);
        Rename(genbuf, buf);
        append_record(title, &mymail, sizeof(mymail));
    } else if (*ans == 'c')
        unlink(genbuf);
    return FULLUPDATE;
    }
    return DONOTHING;
}

static void
do_talk_nextline(talkwin_t * twin)
{
    twin->curcol = 0;
    if (twin->curln < twin->eline)
    ++(twin->curln);
    else
    region_scroll_up(twin->sline, twin->eline);
    move(twin->curln, twin->curcol);
}

static void
do_talk_char(talkwin_t * twin, int ch)
{
    screenline_t   *line;
    int             i;
    char            ch0, buf[81];

    if (isprint2(ch)) {
    ch0 = big_picture[twin->curln].data[twin->curcol];
    if (big_picture[twin->curln].len < 79)
        move(twin->curln, twin->curcol);
    else
        do_talk_nextline(twin);
    outc(ch);
    ++(twin->curcol);
    line = big_picture + twin->curln;
    if (twin->curcol < line->len) { /* insert */
        ++(line->len);
        memcpy(buf, line->data + twin->curcol, 80);
        save_cursor();
        do_move(twin->curcol, twin->curln);
        ochar(line->data[twin->curcol] = ch0);
        for (i = twin->curcol + 1; i < line->len; i++)
        ochar(line->data[i] = buf[i - twin->curcol - 1]);
        restore_cursor();
    }
    line->data[line->len] = 0;
    return;
    }
    switch (ch) {
    case Ctrl('H'):
    case '\177':
    if (twin->curcol == 0)
        return;
    line = big_picture + twin->curln;
    --(twin->curcol);
    if (twin->curcol < line->len) {
        --(line->len);
        save_cursor();
        do_move(twin->curcol, twin->curln);
        for (i = twin->curcol; i < line->len; i++)
        ochar(line->data[i] = line->data[i + 1]);
        line->data[i] = 0;
        ochar(' ');
        restore_cursor();
    }
    move(twin->curln, twin->curcol);
    return;
    case Ctrl('D'):
    line = big_picture + twin->curln;
    if (twin->curcol < line->len) {
        --(line->len);
        save_cursor();
        do_move(twin->curcol, twin->curln);
        for (i = twin->curcol; i < line->len; i++)
        ochar(line->data[i] = line->data[i + 1]);
        line->data[i] = 0;
        ochar(' ');
        restore_cursor();
    }
    return;
    case Ctrl('G'):
    bell();
    return;
    case Ctrl('B'):
    if (twin->curcol > 0) {
        --(twin->curcol);
        move(twin->curln, twin->curcol);
    }
    return;
    case Ctrl('F'):
    if (twin->curcol < 79) {
        ++(twin->curcol);
        move(twin->curln, twin->curcol);
    }
    return;
    case KEY_TAB:
    twin->curcol += 8;
    if (twin->curcol > 80)
        twin->curcol = 80;
    move(twin->curln, twin->curcol);
    return;
    case Ctrl('A'):
    twin->curcol = 0;
    move(twin->curln, twin->curcol);
    return;
    case Ctrl('K'):
    clrtoeol();
    return;
    case Ctrl('Y'):
    twin->curcol = 0;
    move(twin->curln, twin->curcol);
    clrtoeol();
    return;
    case Ctrl('E'):
    twin->curcol = big_picture[twin->curln].len;
    move(twin->curln, twin->curcol);
    return;
    case Ctrl('M'):
    case Ctrl('J'):
    line = big_picture + twin->curln;
    strncpy(buf, (char *)line->data, line->len);
    buf[line->len] = 0;
    do_talk_nextline(twin);
    break;
    case Ctrl('P'):
    line = big_picture + twin->curln;
    strncpy(buf, (char *)line->data, line->len);
    buf[line->len] = 0;
    if (twin->curln > twin->sline) {
        --(twin->curln);
        move(twin->curln, twin->curcol);
    }
    break;
    case Ctrl('N'):
    line = big_picture + twin->curln;
    strncpy(buf, (char *)line->data, line->len);
    buf[line->len] = 0;
    if (twin->curln < twin->eline) {
        ++(twin->curln);
        move(twin->curln, twin->curcol);
    }
    break;
    }
    trim(buf);
    if (*buf)
    fprintf(flog, "%s%s: %s%s\n",
        (twin->eline == b_lines - 1) ? "\033[1;35m" : "",
        (twin->eline == b_lines - 1) ?
        getuserid(currutmp->destuid) : cuser.userid, buf,
        (ch == Ctrl('P')) ? "\033[37;45m(Up)\033[m" : "\033[m");
}

static void
do_talk(int fd)
{
    struct talkwin_t mywin, itswin;
    char            mid_line[128], data[200];
    int             i, datac, ch;
    int             im_leaving = 0;
    FILE           *log;
    struct tm      *ptime;
    char            genbuf[200], fpath[100];

    ptime = localtime(&now);

    sethomepath(fpath, cuser.userid);
    strlcpy(fpath, tempnam(fpath, "talk_"), sizeof(fpath));
    flog = fopen(fpath, "w");

    setuserfile(genbuf, fn_talklog);

    if ((log = fopen(genbuf, "w")))
    fprintf(log, "[%d/%d %d:%02d] & %s\n",
        ptime->tm_mon + 1, ptime->tm_mday, ptime->tm_hour,
        ptime->tm_min, save_page_requestor);
    setutmpmode(TALK);

    ch = 58 - strlen(save_page_requestor);
    snprintf(genbuf, sizeof(genbuf), "%s【%s", cuser.userid, cuser.username);
    i = ch - strlen(genbuf);
    if (i >= 0)
    i = (i >> 1) + 1;
    else {
    genbuf[ch] = '\0';
    i = 1;
    }
    memset(data, ' ', i);
    data[i] = '\0';

    snprintf(mid_line, sizeof(mid_line),
         "\033[1;46;37m  談天說地  \033[45m%s%s】"
         " 與  %s%s\033[0m", data, genbuf, save_page_requestor, data);

    memset(&mywin, 0, sizeof(mywin));
    memset(&itswin, 0, sizeof(itswin));

    i = b_lines >> 1;
    mywin.eline = i - 1;
    itswin.curln = itswin.sline = i + 1;
    itswin.eline = b_lines - 1;

    clear();
    move(i, 0);
    outs(mid_line);
    move(0, 0);

    add_io(fd, 0);

    while (1) {
    ch = igetkey();
    if (ch == I_OTHERDATA) {
        datac = recv(fd, data, sizeof(data), 0);
        if (datac <= 0)
        break;
        for (i = 0; i < datac; i++)
        do_talk_char(&itswin, data[i]);
    } else {
        if (ch == Ctrl('C')) {
        if (im_leaving)
            break;
        move(b_lines, 0);
        clrtoeol();
        outs("再按一次 Ctrl-C 就正式中止談話囉！");
        im_leaving = 1;
        continue;
        }
        if (im_leaving) {
        move(b_lines, 0);
        clrtoeol();
        im_leaving = 0;
        }
        switch (ch) {
        case KEY_LEFT:  /* 把2byte的鍵改為一byte */
        ch = Ctrl('B');
        break;
        case KEY_RIGHT:
        ch = Ctrl('F');
        break;
        case KEY_UP:
        ch = Ctrl('P');
        break;
        case KEY_DOWN:
        ch = Ctrl('N');
        break;
        }
        data[0] = (char)ch;
        if (send(fd, data, 1, 0) != 1)
        break;
        if (log)
        fprintf(log, "%c", (ch == Ctrl('M')) ? '\n' : (char)*data);
        do_talk_char(&mywin, *data);
    }
    }
    if (log)
    fclose(log);

    add_io(0, 0);
    close(fd);

    if (flog) {
    char            ans[4];
    int             i;

    fprintf(flog, "\n\033[33;44m離別畫面 [%s] ...     \033[m\n",
        Cdatelite(&now));
    for (i = 0; i < scr_lns; i++)
        fprintf(flog, "%.*s\n", big_picture[i].len, big_picture[i].data);
    fclose(flog);
    more(fpath, NA);
    getdata(b_lines - 1, 0, "清除(C) 移至備忘錄(M). (C/M)?[C]",
        ans, sizeof(ans), LCECHO);
    if (*ans == 'm') {
        fileheader_t    mymail;
        char            title[128];

        sethomepath(genbuf, cuser.userid);
        stampfile(genbuf, &mymail);
        mymail.filemode = FILE_READ | FILE_HOLD;
        strlcpy(mymail.owner, "[備.忘.錄]", sizeof(mymail.owner));
        snprintf(mymail.title, sizeof(mymail.title),
             "對話記錄 \033[1;36m(%s)\033[m",
             getuserid(currutmp->destuid));
        sethomedir(title, cuser.userid);
        Rename(fpath, genbuf);
        append_record(title, &mymail, sizeof(mymail));
    } else
        unlink(fpath);
    flog = 0;
    }
    setutmpmode(XINFO);
}

#define lockreturn(unmode, state) if(lockutmpmode(unmode, state)) return

static void
my_talk(userinfo_t * uin, int fri_stat)
{
    int             sock, msgsock, length, ch, error = 0;
    struct sockaddr_in server;
    pid_t           pid;
    char            c;
    char            genbuf[4];

    unsigned char   mode0 = currutmp->mode;

    ch = uin->mode;
    strlcpy(currauthor, uin->userid, sizeof(currauthor));

    if (ch == EDITING || ch == TALK || ch == CHATING || ch == PAGE ||
    ch == MAILALL || ch == MONITOR || ch == M_FIVE || ch == CHC ||
    (!ch && (uin->chatid[0] == 1 || uin->chatid[0] == 3)) ||
    uin->lockmode == M_FIVE || uin->lockmode == CHC) {
    outs("人家在忙啦");
    } else if (!HAS_PERM(PERM_SYSOP) &&
           (((fri_stat & HRM) && !(fri_stat & HFM)) ||
        ((!uin->pager) && !(fri_stat & HFM)))) {
    outs("對方關掉呼叫器了");
    } else if (!HAS_PERM(PERM_SYSOP) &&
         (((fri_stat & HRM) && !(fri_stat & HFM)) || uin->pager == 2)) {
    outs("對方拔掉呼叫器了");
    } else if (!HAS_PERM(PERM_SYSOP) &&
           !(fri_stat & HFM) && uin->pager == 4) {
    outs("對方只接受好友的呼叫");
    } else if (!(pid = uin->pid) /* || (kill(pid, 0) == -1) */ ) {
    //resetutmpent();
    outs(msg_usr_left);
    } else {
    showplans(uin->userid);
    getdata(2, 0, "要和他(她) (T)談天(F)下五子棋(P)鬥寵物"
        "(C)下象棋(D)下暗棋(N)沒事找錯人了?[N] ", genbuf, 4, LCECHO);
    switch (*genbuf) {
    case 'y':
    case 't':
        uin->sig = SIG_TALK;
        break;
    case 'f':
        lockreturn(M_FIVE, LOCK_THIS);
        uin->sig = SIG_GOMO;
        break;
    case 'c':
        lockreturn(CHC, LOCK_THIS);
        uin->sig = SIG_CHC;
        break;
    case 'd':
        uin->sig = SIG_DARK;
        break;
    case 'p':
        reload_chicken();
        getuser(uin->userid);
        if (uin->lockmode == CHICKEN || currutmp->lockmode == CHICKEN)
        error = 1;
        if (!cuser.mychicken.name[0] || !xuser.mychicken.name[0])
        error = 2;
        if (error) {
        outmsg(error == 2 ? "並非兩人都養寵物" :
               "有一方的寵物正在使用中");
        bell();
        refresh();
        sleep(1);
        return;
        }
        uin->sig = SIG_PK;
        break;
    default:
        return;
    }

    uin->turn = 1;
    currutmp->turn = 0;
    strlcpy(uin->mateid, currutmp->userid, sizeof(uin->mateid));
    strlcpy(currutmp->mateid, uin->userid, sizeof(currutmp->mateid));

    sock = socket(AF_INET, SOCK_STREAM, 0);
    if (sock < 0) {
        perror("sock err");
        unlockutmpmode();
        return;
    }
    server.sin_family = PF_INET;
    server.sin_addr.s_addr = INADDR_ANY;
    server.sin_port = 0;
    if (bind(sock, (struct sockaddr *) & server, sizeof(server)) < 0) {
        close(sock);
        perror("bind err");
        unlockutmpmode();
        return;
    }
    length = sizeof(server);
    if (getsockname(sock, (struct sockaddr *) & server, (socklen_t *) & length) < 0) {
        close(sock);
        perror("sock name err");
        unlockutmpmode();
        return;
    }
    currutmp->sockactive = YEA;
    currutmp->sockaddr = server.sin_port;
    currutmp->destuid = uin->uid;
    setutmpmode(PAGE);
    uin->destuip = currutmp - &SHM->uinfo[0];
    if (pid > 0)
        kill(pid, SIGUSR1);
    clear();
    prints("正呼叫 %s.....\n鍵入 Ctrl-D 中止....", uin->userid);

    listen(sock, 1);
    add_io(sock, 5);
    while (1) {
        ch = igetch();
        if (ch == I_TIMEOUT) {
        ch = uin->mode;
        if (!ch && uin->chatid[0] == 1 &&
            uin->destuip == currutmp - &SHM->uinfo[0]) {
            bell();
            outmsg("對方回應中...");
            refresh();
        } else if (ch == EDITING || ch == TALK || ch == CHATING ||
               ch == PAGE || ch == MAILALL || ch == MONITOR ||
               ch == M_FIVE || ch == CHC ||
               (!ch && (uin->chatid[0] == 1 ||
                    uin->chatid[0] == 3))) {
            add_io(0, 0);
            close(sock);
            currutmp->sockactive = currutmp->destuid = 0;
            outmsg("人家在忙啦");
            pressanykey();
            unlockutmpmode();
            return;
        } else {
#ifdef linux
            add_io(sock, 20);   /* added for linux... achen */
#endif
            move(0, 0);
            outs("再");
            bell();

            uin->destuip = currutmp - &SHM->uinfo[0];
            if (pid <= 0 || kill(pid, SIGUSR1) == -1) {
#ifdef linux
            add_io(sock, 20);   /* added 4 linux... achen */
#endif
            outmsg(msg_usr_left);
            refresh();
            pressanykey();
            unlockutmpmode();
            return;
            }
            continue;
        }
        }
        if (ch == I_OTHERDATA)
        break;

        if (ch == '\004') {
        add_io(0, 0);
        close(sock);
        currutmp->sockactive = currutmp->destuid = 0;
        unlockutmpmode();
        return;
        }
    }

    msgsock = accept(sock, (struct sockaddr *) 0, (socklen_t *) 0);
    if (msgsock == -1) {
        perror("accept");
        unlockutmpmode();
        return;
    }
    add_io(0, 0);
    close(sock);
    currutmp->sockactive = NA;
    read(msgsock, &c, sizeof c);

    if (c == 'y') {
        snprintf(save_page_requestor, sizeof(save_page_requestor),
             "%s (%s)", uin->userid, uin->username);
        /* gomo */
        switch (uin->sig) {
        case SIG_DARK:
        main_dark(msgsock, uin);
        break;
        case SIG_PK:
        chickenpk(msgsock);
        break;
        case SIG_GOMO:
        gomoku(msgsock);
        break;
        case SIG_CHC:
        chc(msgsock);
        break;
        case SIG_TALK:
        default:
        do_talk(msgsock);
        }
    } else {
        move(9, 9);
        outs("【回音】 ");
        switch (c) {
        case 'a':
        outs("我現在很忙，請等一會兒再 call 我，好嗎？");
        break;
        case 'b':
        prints("對不起，我有事情不能跟你 %s....", sig_des[uin->sig]);
        break;
        case 'd':
        outs("我要離站囉..下次再聊吧..........");
        break;
        case 'c':
        outs("請不要吵我好嗎？");
        break;
        case 'e':
        outs("找我有事嗎？請先來信唷....");
        break;
        case 'f':
        {
            char            msgbuf[60];

            read(msgsock, msgbuf, 60);
            prints("對不起，我現在不能跟你 %s，因為\n", sig_des[uin->sig]);
            move(10, 18);
            outs(msgbuf);
        }
        break;
        case '1':
        prints("%s？先拿100銀兩來..", sig_des[uin->sig]);
        break;
        case '2':
        prints("%s？先拿1000銀兩來..", sig_des[uin->sig]);
        break;
        default:
        prints("我現在不想 %s 啦.....:)", sig_des[uin->sig]);
        }
        close(msgsock);
    }
    }
    currutmp->mode = mode0;
    currutmp->destuid = 0;
    unlockutmpmode();
    pressanykey();
}

/* 選單式聊天介面 */
#define US_PICKUP       1234
#define US_RESORT       1233
#define US_ACTION       1232
#define US_REDRAW       1231

static void
t_showhelp()
{
    clear();

    outs("\033[36m【 休閒聊天使用說明 】\033[m\n\n"
     "(←)(e)         結束離開             (h)             看使用說明\n"
     "(↑)/(↓)(n)    上下移動             (TAB)           切換排序方式\n"
     "(PgUp)(^B)      上頁選單             ( )(PgDn)(^F)   下頁選單\n"
     "(Hm)/($)(Ed)    首/尾                (S)             來源/好友描述/戰績 切換\n"
     "(m)             寄信                 (q/c)           查詢網友/寵物\n"
     "(r)             閱\讀信件             (l/C)           看上次熱訊/切換隱身\n"
     "(f)             全部/好友列表        (數字)          跳至該使用者\n"
     "(p)             切換呼叫器           (g/i)           給錢/切換心情\n"
     "(a/d/o)         好友 增加/刪除/修改  (/)(s)          網友ID/暱稱搜尋\n"
     "(N)             修改暱稱");

    if (HAS_PERM(PERM_PAGE)) {
    outs("\n\n\033[36m【 交談專用鍵 】\033[m\n"
         "(→)(t)(Enter)  跟他／她聊天\n"
         "(w)             熱線 Call in\n"
         "(^W)切換水球方式 一般 / 進階 / 未來\n"
         "(b)             對好友廣播 (一定要在好友列表中)\n"
         "(^R)            即時回應 (有人 Call in 你時)");
    }
    if (HAS_PERM(PERM_SYSOP)) {
    outs("\n\n\033[36m【 站長專用鍵 】\033[m\n\n");
    outs("(u)/(H)         設定使用者資料/切換隱形模式\n");
    outs("(K)             把壞蛋踢出去\n");
#if defined(SHOWBOARD) && defined(DEBUG)
    outs("(Y)             顯示正在看什麼板\n");
#endif
    }
    pressanykey();
}

/*
 * static int listcuent(userinfo_t * uentp) { if((!uentp->invisible ||
 * HAS_PERM(PERM_SYSOP) || HAS_PERM(PERM_SEECLOAK)))
 * AddNameList(uentp->userid); return 0; }
 * 
 * static void creat_list() { CreateNameList(); apply_ulist(listcuent); }
 */

/* Kaede show friend description */
static char    *
friend_descript(userinfo_t * uentp)
{
    char    *space_buf = "";
    static char     desc_buf[80];
    char            fpath[80], name[IDLEN + 2], *desc, *ptr;
    int             len, flag;
    FILE           *fp;
    char            genbuf[200];

    if((set_friend_bit(currutmp,uentp)|IFH)==0)
    return space_buf;

    setuserfile(fpath, friend_file[0]);

    if ((fp = fopen(fpath, "r"))) {
    snprintf(name, sizeof(name), "%s ", uentp->userid);
    len = strlen(name);
    desc = genbuf + 13;

    /* TODO maybe none linear search, or fread, or cache */
    while ((flag = (int)fgets(genbuf, STRLEN, fp))) {
        if (!memcmp(genbuf, name, len)) {
        if ((ptr = strchr(desc, '\n')))
            ptr[0] = '\0';
        break;
        }
    }
    fclose(fp);
    if (flag)
        strlcpy(desc_buf, desc, sizeof(desc_buf));
    else
        return space_buf;

    return desc_buf;
    } else
    return space_buf;
}

/* XXX 為什麼 diff 是 time_t */
static char    *
descript(int show_mode, userinfo_t * uentp, time_t diff)
{
    switch (show_mode) {
    case 1:
    return friend_descript(uentp);
    case 0:
    return (((uentp->pager != 2 && uentp->pager != 3 && diff) ||
         HAS_PERM(PERM_SYSOP)) ?
#ifdef WHERE
        uentp->from_alias ? SHM->replace[uentp->from_alias] :
        uentp->from
#else
        uentp->from
#endif
        : "*");
    case 2:
    snprintf(description, sizeof(description),
         "%3d/%3d/%3d", uentp->five_win,
         uentp->five_lose, uentp->five_tie);
    description[20] = 0;
    return description;
    case 3:
    snprintf(description, sizeof(description),
         "%3d/%3d/%3d", uentp->chc_win,
         uentp->chc_lose, uentp->chc_tie);
    description[20] = 0;
    return description;
    default:
    syslog(LOG_WARNING, "damn!!! what's wrong?? show_mode = %d",
           show_mode);
    return "";
    }
}

/*
 * userlist
 * 
 * 有別於其他大部份 bbs在實作使用者名單時, 都是將所有 online users 取一份到
 * local space 中, 按照所須要的方式 sort 好 (如按照 userid , 五子棋, 來源等
 * 等) . 這將造成大量的浪費: 為什麼每個人都要為了產生這一頁僅 20 個人的資料
 * 而去 sort 其他一萬人的資料?
 *
 * 一般來說, 一份完整的使用者名單可以分成「好友區」和「非好友區」. 不同人的
 * 「好友區」應該會長的不一樣, 不過「非好友區」應該是長的一樣的. 針對這項特
 * 性, 兩區有不同的實作方式.
 *
 * + 好友區
 *   好友區只有在排列方式為 [嗨! 朋友] 的時候「可能」會用到.
 *   每個 process可以透過 currutmp->friend_online[]得到互相間有好友關係的資
 *   料 (不包括板友, 板友是另外生出來的) 不過 friend_online[]是 unorder的.
 *   所以須要先把所有的人拿出來, 重新 sort 一次.
 *   好友區 (互相任一方有設好友+ 板友) 最多只會有 MAX_FRIENDS個
 *   因為產生好友區的 cost 相當高, "能不產生就不要產生"
 *
 * + 非好友區
 *   透過 shmctl utmpsortd , 定期 (通常一秒一次) 將全站的人按照各種不同的方
 *   式 sort 好, 放置在 SHM->sorted中.
 *
 * 接下來, 我們每次只從確定的起始位置拿, 特別是除非有須要, 不然不會去產生好
 * 友區. 
 *
 * 各個 function 摘要
 * sort_cmpfriend()   sort function, key: friend type
 * pickup_maxpages()  # pages of userlist
 * pickup_myfriend()  產生好友區
 * pickup_bfriend()   產生板友
 * pickup()           產生某一頁使用者名單
 * draw_pickup()      把畫面輸出
 * userlist()         主函式, 負責呼叫 pickup()/draw_pickup() 以及按鍵處理
 *
 * SEE ALSO
 *     include/pttstruct.h
 *
 * BUGS
 *     搜尋的時候沒有辦法移到該人上面
 *
 * AUTHOR
 *     in2 <in2@in2home.org>
 */
char    nPickups;

static int
sort_cmpfriend(const void *a, const void *b)
{
    if (((((pickup_t *) a)->friend) & ST_FRIEND) ==
    ((((pickup_t *) b)->friend) & ST_FRIEND))
    return strcasecmp(((pickup_t *) a)->ui->userid,
              ((pickup_t *) b)->ui->userid);
    else
    return (((pickup_t *) b)->friend & ST_FRIEND) -
        (((pickup_t *) a)->friend & ST_FRIEND);
}

int
pickup_maxpages(int pickupway, int nfriends)
{
    int             number;
    if (cuser.uflag & FRIEND_FLAG)
    number = nfriends;
    else
    number = SHM->UTMPnumber +
        (pickupway == 0 ? nfriends : 0);
    return (number - 1) / nPickups + 1;
}

static int
pickup_myfriend(pickup_t * friends,
        int *myfriend, int *friendme, int *badfriend)
{
    userinfo_t     *uentp;
    int             i, where, frstate, ngets = 0;

    *badfriend = 0;
    *myfriend = *friendme = 1;
    for (i = 0; currutmp->friend_online[i] && i < MAX_FRIEND; ++i) {
    where = currutmp->friend_online[i] & 0xFFFFFF;
    if (0 <= where && where < MAX_ACTIVE &&
        (uentp = &SHM->uinfo[where]) && uentp->pid &&
        uentp != currutmp &&
        isvisible_stat(currutmp, uentp,
               frstate =
               currutmp->friend_online[i] >> 24)){
        if( frstate & IRH )
        ++*badfriend;
        if( !(frstate & IRH) || ((frstate & IRH) && (frstate & IFH)) ){
        friends[ngets].ui = uentp;
        friends[ngets].uoffset = where;
        friends[ngets++].friend = frstate;
        if (frstate & IFH)
            ++* myfriend;
        if (frstate & HFM)
            ++* friendme;
        }
    }
    }
    /* 把自己加入好友區 */
    friends[ngets].ui = currutmp;
    friends[ngets++].friend = (IFH | HFM);
    return ngets;
}

static int
pickup_bfriend(pickup_t * friends, int base)
{
    userinfo_t     *uentp;
    int             i, ngets = 0;
    int             currsorted = SHM->currsorted, number = SHM->UTMPnumber;
    friends = friends + base;
    for (i = 0; i < number && ngets < MAX_FRIEND - base; ++i) {
    uentp = SHM->sorted[currsorted][0][i];
    if (uentp && uentp->pid && uentp->brc_id == currutmp->brc_id &&
        currutmp != uentp && isvisible(currutmp, uentp) &&
        (base || !(friend_stat(currutmp, uentp) & (IFH | HFM)))) {
        friends[ngets].ui = uentp;
        friends[ngets++].friend = IBH;
    }
    }
    return ngets;
}

static void
pickup(pickup_t * currpickup, int pickup_way, int *page,
       int *nfriend, int *myfriend, int *friendme, int *bfriend, int *badfriend)
{
    /* avoid race condition */
    int             currsorted = SHM->currsorted;
    int             utmpnumber = SHM->UTMPnumber;
    int             friendtotal = currutmp->friendtotal;

    userinfo_t    **utmp;
    int             which, sorted_way, size = 0, friend;

    if (friendtotal == 0)
    *myfriend = *friendme = 1;

    /* 產生好友區 */
    which = *page * nPickups;
    if( (cuser.uflag & FRIEND_FLAG) || /* 只顯示好友模式 */
    ((pickup_way == 0) &&          /* [嗨! 朋友] mode */
     (
      /* 含板友, 好友區最多只會有 (friendtotal + 板友) 個*/
      (currutmp->brc_id && which < (friendtotal +
                    bcache[currutmp->brc_id-1].nuser)) ||
      
      /* 不含板友, 最多只會有 friendtotal個 */
      (!currutmp->brc_id && which < friendtotal)
      ))) {
    pickup_t        friends[MAX_FRIEND];

    *nfriend = pickup_myfriend(friends, myfriend, friendme, badfriend);

    if (pickup_way == 0 && currutmp->brc_id != 0)
        *bfriend = pickup_bfriend(friends, *nfriend);
    else
        *bfriend = 0;
    *nfriend += *bfriend;
    if (*nfriend > which) {
        /* 只有在要秀出才有必要 sort */
        qsort(friends, *nfriend, sizeof(pickup_t), sort_cmpfriend);
        size = *nfriend - which;
        if (size > nPickups)
        size = nPickups;
        memcpy(currpickup, friends + which, sizeof(pickup_t) * size);
    }
    } else
    *nfriend = 0;

    if (!(cuser.uflag & FRIEND_FLAG) && size < nPickups) {
    sorted_way = ((pickup_way == 0) ? 0 : (pickup_way - 1));
    utmp = SHM->sorted[currsorted][sorted_way];
    which = *page * nPickups - *nfriend;
    if (which < 0)
        which = 0;
    for (; which < utmpnumber && size < nPickups; which++) {
        friend = friend_stat(currutmp, utmp[which]);
        if ((pickup_way ||
         (currutmp != utmp[which] && !(friend & ST_FRIEND))) &&
        isvisible(currutmp, utmp[which])) {
        currpickup[size].ui = utmp[which];
        currpickup[size++].friend = friend;
        }
    }
    }

    for (; size < nPickups; ++size)
    currpickup[size].ui = 0;
}

static void
draw_pickup(int drawall, pickup_t * pickup, int pickup_way,
        int page, int show_mode, int show_uid, int show_board,
        int show_pid, int myfriend, int friendme, int bfriend, int badfriend)
{
    char           *msg_pickup_way[PICKUP_WAYS] = {
    "嗨! 朋友", "網友代號", "網友動態", "發呆時間", "來自何方", " 五子棋 ", "  象棋  "
    };
    char           *MODE_STRING[MAX_SHOW_MODE] = {
    "故鄉", "好友描述", "五子棋戰績", "象棋戰績"
    };
    char            pagerchar[5] = "* -Wf";

    userinfo_t     *uentp;
    int             i, ch, state, friend;
    char            mind[5];
#ifdef SHOW_IDLE_TIME
    char            idlestr[32];
    int             idletime;
#endif

    if (drawall) {
    showtitle((cuser.uflag & FRIEND_FLAG) ? "好友列表" : "休閒聊天",
          BBSName);
    prints("\n"
           "\033[7m  %s P%c代號         %-17s%-17s%-13s%-10s\033[m\n",
           show_uid ? "UID" : "No.",
           (HAS_PERM(PERM_SEECLOAK) || HAS_PERM(PERM_SYSOP)) ? 'C' : ' ',
           "暱稱",
           MODE_STRING[show_mode],
           show_board ? "Board" : "動態",
           show_pid ? "       PID" : "備註  發呆"
        );
    move(b_lines, 0);
    outs("\033[31;47m(TAB/f)\033[30m排序/好友 \033[31m(t)\033[30m聊天 "
         "\033[31m(a/d/o)\033[30m交友 \033[31m(q)\033[30m查詢 "
         "\033[31m(w)\033[30m水球 \033[31m(m)\033[30m寄信 \033[31m(h)"
         "\033[30m線上輔助 \033[m");
    }
    move(1, 0);
    prints("  排序：[%s] 上站人數：%-4d\033[1;32m我的朋友：%-3d"
       "\033[33m與我為友：%-3d\033[36m板友：%-4d\033[31m壞人："
       "%-2d\033[m\n",
       msg_pickup_way[pickup_way], SHM->UTMPnumber,
       myfriend, friendme, currutmp->brc_id ? (bfriend + 1) : 0, badfriend);

    for (i = 0, ch = page * nPickups + 1; i < nPickups; ++i, ++ch) {
    move(i + 3, 0);
    prints("a");
    move(i + 3, 0);
    uentp = pickup[i].ui;
    friend = pickup[i].friend;
    if (uentp == NULL) {
        prints("\n");
        continue;
    }
    if (!uentp->pid) {
        prints("%5d   < 離站中..>\n", ch);
        continue;
    }
    if (PERM_HIDE(uentp))
        state = 9;
    else if (currutmp == uentp)
        state = 10;
    else if (friend & IRH && !(friend & IFH))
        state = 8;
    else
        state = (friend & ST_FRIEND) >> 2;

#ifdef SHOW_IDLE_TIME
    idletime = (now - uentp->lastact);
    if (idletime > 86400)
        strlcpy(idlestr, " -----", sizeof(idlestr));
    else if (idletime >= 3600)
        snprintf(idlestr, sizeof(idlestr), "%3dh%02d",
             idletime / 3600, (idletime / 60) % 60);
    else if (idletime > 0)
        snprintf(idlestr, sizeof(idlestr), "%3d'%02d",
             idletime / 60, idletime % 60);
    else
        strlcpy(idlestr, "      ", sizeof(idlestr));
#endif

    if ((uentp->userlevel & PERM_VIOLATELAW))
        memcpy(mind, "通緝", 4);
    else if (uentp->birth)
        memcpy(mind, "壽星", 4);
    else
        memcpy(mind, uentp->mind, 4);
    mind[4] = 0;
    prints("%5d %c%c%s%-13s%-17.16s\033[m%-17.16s%-13.13s"
           "\33[33m%-4.4s\33[m%s\n",

    /* list number or uid */
#ifdef SHOWUID
           show_uid ? uentp->uid :
#endif
           ch,

    /* super friend or pager */
           (friend & HRM) ? 'X' : pagerchar[uentp->pager % 5],

    /* visibility */
           (uentp->invisible ? ')' : ' '),

    /* color of userid, userid */
           fcolor[state], uentp->userid,

    /* nickname */
           uentp->username,

    /* from */
           descript(show_mode, uentp,
            uentp->pager & !(friend & HRM)),

    /* board or mode */
#if defined(SHOWBOARD) && defined(DEBUG)
           show_board ? (uentp->brc_id == 0 ? "" :
                 bcache[uentp->brc_id - 1].brdname) :
#endif
    /* %-13.13s */
           modestring(uentp, 0),

    /* memo */
           mind,

    /* idle */
#ifdef SHOW_IDLE_TIME
           idlestr
#else
           ""
#endif
        );

    refresh();
    }
}

int
call_in(userinfo_t * uentp, int fri_stat)
{
    if (iswritable_stat(uentp, fri_stat)) {
    char            genbuf[60];
    snprintf(genbuf, sizeof(genbuf), "Call-In %s ：", uentp->userid);
    my_write(uentp->pid, genbuf, uentp->userid, 0, NULL);
    return 1;
    }
    return 0;
}

inline static void
userlist(void)
{
    pickup_t       *currpickup;
    userinfo_t     *uentp;
    static char     show_mode = 0;
    static char     show_uid = 0;
    static char     show_board = 0;
    static char     show_pid = 0;
    char            genbuf[256];
    int             page, offset, pickup_way, ch, leave, redraw, redrawall,
                    fri_stat;
    int             nfriend, myfriend, friendme, bfriend, badfriend, i;
    time_t          lastupdate;

    nPickups = b_lines - 3;
    currpickup = (pickup_t *)malloc(sizeof(pickup_t) * nPickups);
    page = offset = 0;
    pickup_way = 0;
    leave = 0;
    redrawall = 1;
    /*
     * 各個 flag :
     * redraw:    重新 pickup(), draw_pickup() (僅中間區, 不含標題列等等)
     * redrawall: 全部重畫 (含標題列等等, 須再指定 redraw 才會有效)
     * leave:     離開使用者名單
     */
    while (!leave) {
    pickup(currpickup, pickup_way, &page,
           &nfriend, &myfriend, &friendme, &bfriend, &badfriend);
    draw_pickup(redrawall, currpickup, pickup_way, page,
            show_mode, show_uid, show_board, show_pid,
            myfriend, friendme, bfriend, badfriend);

    /*
     * 如果因為換頁的時候, 這一頁有的人數比較少,
     * (通常都是最後一頁人數不滿的時候) 那要重新計算 offset
     * 以免指到沒有人的地方
     */
    if (offset == -1 || currpickup[offset].ui == NULL) {
        for (offset = (offset == -1 ? nPickups - 1 : offset);
         offset >= 0; --offset)
        if (currpickup[offset].ui != NULL)
            break;
        if (offset == -1) {
        if (--page < 0)
            page = pickup_maxpages(pickup_way, nfriend) - 1;
        offset = 0;
        continue;
        }
    }
    redraw = redrawall = 0;
    lastupdate = now;
    while (!redraw) {
        ch = cursor_key(offset + 3, 0);
        uentp = currpickup[offset].ui;
        fri_stat = currpickup[offset].friend;

        if (ch == KEY_RIGHT || ch == '\n' || ch == '\r')
        ch = 't';

        switch (ch) {
        case KEY_LEFT:
        case 'e':
        case 'E':
        redraw = leave = 1;
        break;

        case KEY_TAB:
        pickup_way = (pickup_way + 1) % PICKUP_WAYS;
        redraw = 1;
        redrawall = 1;
        break;

        case KEY_DOWN:
        case 'n':
        case 'j':
        if (++offset == nPickups || currpickup[offset].ui == NULL) {
            redraw = 1;
            if (++page >= pickup_maxpages(pickup_way,
                          nfriend))
            offset = page = 0;
            else
            offset = 0;
        }
        break;

        case '0':
        case KEY_HOME:
        page = offset = 0;
        redraw = 1;
        break;

        case 'H':
        if (HAS_PERM(PERM_SYSOP)) {
            currutmp->userlevel ^= PERM_DENYPOST;
            redrawall = redraw = 1;
        }
        break;

        case 'D':
        if (HAS_PERM(PERM_SYSOP)) {
            char            buf[100];
            snprintf(buf, sizeof(buf),
                 "代號 [%s]：", currutmp->userid);
            if (!getdata(1, 0, buf, currutmp->userid,
                 sizeof(buf), DOECHO))
            strlcpy(currutmp->userid, cuser.userid, sizeof(currutmp->userid));
            redrawall = redraw = 1;
        }
        break;

        case 'F':
        if (HAS_PERM(PERM_SYSOP)) {
            char            buf[100];

            snprintf(buf, sizeof(buf), "故鄉 [%s]：", currutmp->from);
            if (!getdata(1, 0, buf, currutmp->from,
                 sizeof(currutmp->from), DOECHO))
            strncpy(currutmp->from, buf, 23);
            redrawall = redraw = 1;
        }
        break;

        case 'C':
#if !HAVE_FREECLOAK
        if (HAS_PERM(PERM_CLOAK))
#endif
        {
            currutmp->invisible ^= 1;
            redrawall = redraw = 1;
        }
        break;

        case ' ':
        case KEY_PGDN:
        case Ctrl('F'):{
            int             newpage;
            if ((newpage = page + 1) >= pickup_maxpages(pickup_way,
                                nfriend))
            newpage = offset = 0;
            if (newpage != page) {
            page = newpage;
            redraw = 1;
            } else if (now >= lastupdate + 2)
            redrawall = redraw = 1;
        }
        break;

        case KEY_UP:
        case 'k':
        if (--offset == -1) {
            offset = nPickups - 1;
            if (--page == -1)
            page = pickup_maxpages(pickup_way, nfriend)
                - 1;
            redraw = 1;
        }
        break;

        case KEY_PGUP:
        case Ctrl('B'):
        case 'P':
        if (--page == -1)
            page = pickup_maxpages(pickup_way, nfriend) - 1;
        offset = 0;
        redraw = 1;
        break;

        case KEY_END:
        case '$':
        page = pickup_maxpages(pickup_way, nfriend) - 1;
        offset = -1;
        redraw = 1;
        break;

        case '/':
        /*
         * getdata_buf(b_lines-1,0,"請輸入暱稱關鍵字:", keyword,
         * sizeof(keyword), DOECHO); state = US_PICKUP;
         */
        break;

        case 's':
        if (!(cuser.uflag & FRIEND_FLAG)) {
            int             si; /* utmpshm->sorted[X][0][si] */
            int             fi; /* allpickuplist[fi] */
            char            swid[IDLEN + 1];
            move(1, 0);
            si = generalnamecomplete(msg_uid, swid,
                         sizeof(swid), SHM->UTMPnumber,
                         completeutmp_compar,
                         completeutmp_permission,
                         completeutmp_getname);
            if (si >= 0) {
            pickup_t        friends[MAX_FRIEND + 1];
            int             nGots, i;
            fi = SHM->sorted[SHM->currsorted][0][si] -
                &SHM->uinfo[0];

            nGots = pickup_myfriend(friends, &myfriend,
                        &friendme, &badfriend);
            for (i = 0; i < nGots; ++i)
                if (friends[i].uoffset == fi)
                break;
            if (i != nGots) {
                page = i / nPickups;
                offset = i % nPickups;
            } else {
                page = (si + nGots) / nPickups;
                offset = (si + nGots) % nPickups;
            }
            }
            redrawall = redraw = 1;
        }
        /*
         * if ((i = search_pickup(num, actor, pklist)) >= 0) num = i;
         * state = US_ACTION;
         */
        break;

        case '1':
        case '2':
        case '3':
        case '4':
        case '5':
        case '6':
        case '7':
        case '8':
        case '9':
        {       /* Thor: 可以打數字跳到該人 */
            int             tmp;
            if ((tmp = search_num(ch, SHM->UTMPnumber)) >= 0) {
            if (tmp / nPickups == page) {
                /*
                 * in2:目的在目前這一頁, 直接 更新 offset ,
                 * 不用重畫畫面
                 */
                offset = tmp % nPickups;
            } else {
                page = tmp / nPickups;
                offset = tmp % nPickups;
            }
            redrawall = redraw = 1;
            }
        }
        break;

#ifdef SHOWUID
        case 'U':
        if (HAS_PERM(PERM_SYSOP)) {
            show_uid ^= 1;
            redrawall = redraw = 1;
        }
        break;
#endif
#if defined(SHOWBOARD) && defined(DEBUG)
        case 'Y':
        if (HAS_PERM(PERM_SYSOP)) {
            show_board ^= 1;
            redrawall = redraw = 1;
        }
        break;
#endif
#ifdef  SHOWPID
        case '#':
        if (HAS_PERM(PERM_SYSOP)) {
            show_pid ^= 1;
            redrawall = redraw = 1;
        }
        break;
#endif

        case 'b':       /* broadcast */
        if (cuser.uflag & FRIEND_FLAG || HAS_PERM(PERM_SYSOP)) {
            char            ans[4];

            if (!getdata(0, 0, "廣播訊息:", genbuf, 60, DOECHO))
            break;
            if (getdata(0, 0, "確定廣播? [Y]",
                ans, sizeof(ans), LCECHO) &&
            *ans == 'n')
            break;
            if (!(cuser.uflag & FRIEND_FLAG) && HAS_PERM(PERM_SYSOP)) {
            if( getdata(1, 0, "再次確定站長廣播? [N]",
                    ans, sizeof(ans), LCECHO) &&
                *ans != 'y' && *ans != 'Y' ){
                vmsg("abort");
                break;
            }
            for (i = 0; i < SHM->UTMPnumber; ++i) {
                uentp = SHM->sorted[SHM->currsorted][0][i];
                if (uentp->pid && kill(uentp->pid, 0) != -1)
                my_write(uentp->pid, genbuf,
                     uentp->userid, 1, NULL);
                if (i % 100 == 0)
                sleep(1);
            }
            } else {
            userinfo_t     *uentp;
            int             where, frstate;
            for (i = 0; currutmp->friend_online[i] &&
                 i < MAX_FRIEND; ++i) {
                where = currutmp->friend_online[i] & 0xFFFFFF;
                if (0 <= where && where < MAX_ACTIVE &&
                (uentp = &SHM->uinfo[where]) &&
                uentp->pid &&
                isvisible_stat(currutmp, uentp,
                           frstate =
                       currutmp->friend_online[i] >> 24)
                && kill(uentp->pid, 0) != -1 &&
                uentp->pager != 3 &&
                (uentp->pager != 4 || frstate & HFM) &&
                !(frstate & IRH)) {
                my_write(uentp->pid, genbuf,
                     uentp->userid, 1, NULL);
                }
            }
            }
            redrawall = redraw = 1;
        }
        break;

        case 'S':       /* 顯示好友描述 */
        show_mode = (show_mode+1) % MAX_SHOW_MODE;
        redrawall = redraw = 1;
        break;

        case 'u':       /* 線上修改資料 */
        if (HAS_PERM(PERM_ACCOUNTS)) {
            int             id;
            userec_t        muser;
            strlcpy(currauthor, uentp->userid, sizeof(currauthor));
            stand_title("使用者設定");
            move(1, 0);
            if ((id = getuser(uentp->userid)) > 0) {
            memcpy(&muser, &xuser, sizeof(muser));
            user_display(&muser, 1);
            uinfo_query(&muser, 1, id);
            }
            redrawall = redraw = 1;
        }
        break;

        case 'i':{
            char            mindbuf[5];
            getdata(b_lines - 1, 0, "現在的心情? ",
                mindbuf, sizeof(mindbuf), DOECHO);
            if (strcmp(mindbuf, "通緝") == 0)
            vmsg("不可以把自己設通緝啦!");
            else if (strcmp(mindbuf, "壽星") == 0)
            vmsg("你不是今天生日欸!");
            else
            memcpy(currutmp->mind, mindbuf, 4);
        }
        redrawall = redraw = 1;
        break;

        case Ctrl('S'):
        break;

        case 't':
        if (HAS_PERM(PERM_LOGINOK)) {
            if (uentp->pid != currpid &&
            strcmp(uentp->userid, cuser.userid) != 0) {
            move(1, 0);
            clrtobot();
            move(3, 0);
            my_talk(uentp, fri_stat);
            redrawall = redraw = 1;
            }
        }
        break;
        case 'K':
        if (HAS_PERM(PERM_ACCOUNTS)) {
            my_kick(uentp);
            redrawall = redraw = 1;
        }
        break;
        case 'w':
        if (call_in(uentp, fri_stat))
            redrawall = redraw = 1;
        break;
        case 'a':
        if (HAS_PERM(PERM_LOGINOK)) {
            friend_add(uentp->userid, FRIEND_OVERRIDE,uentp->username);
            friend_load();
            redrawall = redraw = 1;
        }
        break;

        case 'd':
        if (HAS_PERM(PERM_LOGINOK)) {
            friend_delete(uentp->userid, FRIEND_OVERRIDE);
            friend_load();
            redrawall = redraw = 1;
        }
        break;

        case 'o':
        if (HAS_PERM(PERM_LOGINOK)) {
            t_override();
            redrawall = redraw = 1;
        }
        break;

        case 'f':
        if (HAS_PERM(PERM_LOGINOK)) {
            cuser.uflag ^= FRIEND_FLAG;
            redrawall = redraw = 1;
        }
        break;

        case 'g':
        if (HAS_PERM(PERM_LOGINOK) &&
            strcmp(uentp->userid, cuser.userid) != 0) {
            move(b_lines - 2, 0);
            snprintf(genbuf, sizeof(genbuf),
                 "要給 %s 多少錢呢?  ", uentp->userid);
            outs(genbuf);
            if (getdata(b_lines - 1, 0, "[銀行轉帳]: ",
                genbuf, 7, LCECHO)) {
            clrtoeol();
            if ((ch = atoi(genbuf)) <= 0 || ch <= give_tax(ch))
                break;
            reload_money();

            if (ch > cuser.money) {
                outs("\033[41m 現金不足~~\033[m");
            } else {
                deumoney(uentp->uid, ch - give_tax(ch));
                snprintf(genbuf, sizeof(genbuf),
                     "\033[44m 嗯..還剩下 %d 錢.."
                     "\033[m", demoney(-ch));
                outs(genbuf);
                snprintf(genbuf, sizeof(genbuf),
                     "%s\t給%s\t%d\t%s", cuser.userid,
                     uentp->userid, ch,
                     ctime(&currutmp->lastact));
                log_file(FN_MONEY, genbuf);
                mail_redenvelop(cuser.userid, uentp->userid,
                        ch - give_tax(ch), 'Y');
            }
            } else {
            clrtoeol();
            outs("\033[41m 交易取消! \033[m");
            }
            redrawall = redraw = 1;
        }
        break;

        case 'm':
        if (HAS_PERM(PERM_BASIC)) {
            stand_title("寄  信");
            prints("[寄信] 收信人：%s", uentp->userid);
            my_send(uentp->userid);
            setutmpmode(LUSERS);
            redrawall = redraw = 1;
        }
        break;

        case 'q':
        strlcpy(currauthor, uentp->userid, sizeof(currauthor));
        my_query(uentp->userid);
        setutmpmode(LUSERS);
        redrawall = redraw = 1;
        break;

        case 'c':
        if (HAS_PERM(PERM_LOGINOK)) {
            chicken_query(uentp->userid);
            redrawall = redraw = 1;
        }
        break;

        case 'l':
        if (HAS_PERM(PERM_LOGINOK)) {
            t_display();
            redrawall = redraw = 1;
        }
        break;

        case 'h':
        t_showhelp();
        redrawall = redraw = 1;
        break;

        case 'p':
        if (HAS_PERM(PERM_BASIC)) {
            t_pager();
            redrawall = redraw = 1;
        }
        break;

        case Ctrl('W'):
        if (HAS_PERM(PERM_LOGINOK)) {
            int             tmp;
            char           *wm[3] = {"一般", "進階", "未來"};
            tmp = cuser.uflag2 & WATER_MASK;
            cuser.uflag2 -= tmp;
            tmp = (tmp + 1) % 3;
            cuser.uflag2 |= tmp;
            move(4, 0);
            prints("系統提供 一般 進階 未來 三種模式\n"
               "在切換後請正常下線再重新登入, 以確保結構正確\n"
               "目前切換到 %s 水球模式\n", wm[tmp]);
            refresh();
            sleep(2);
            redrawall = redraw = 1;
        }
        break;

        case 'r':
        if (HAS_PERM(PERM_LOGINOK)) {
            m_read();
            setutmpmode(LUSERS);
            redrawall = redraw = 1;
        }
        break;

        case 'N':
        oldgetdata(1, 0, "新的暱稱: ",
            cuser.username, sizeof(cuser.username), DOECHO);
        strcpy(currutmp->username, cuser.username);
        redrawall = redraw = 1;
        break;

        default:
        if (now >= lastupdate + 2)
            redraw = 1;
        }
    }
    }
    free(currpickup);
}

int
t_users(void)
{
    int             destuid0 = currutmp->destuid;
    int             mode0 = currutmp->mode;
    int             stat0 = currstat;

    if( cuser.userid[0] != currutmp->userid[0] ){
    if( HAS_PERM(PERM_SYSOP) )
        vmsg("warning: currutmp userid is changed");
    else
        abort_bbs(0);
    }
    setutmpmode(LUSERS);
    userlist();
    currutmp->mode = mode0;
    currutmp->destuid = destuid0;
    currstat = stat0;
    return 0;
}

int
t_pager(void)
{
    currutmp->pager = (currutmp->pager + 1) % 5;
    return 0;
}

int
t_idle(void)
{
    int             destuid0 = currutmp->destuid;
    int             mode0 = currutmp->mode;
    int             stat0 = currstat;
    char            genbuf[20];
    char            buf[80], passbuf[PASSLEN];

    setutmpmode(IDLE);
    getdata(b_lines - 1, 0, "理由：[0]發呆 (1)接電話 (2)覓食 (3)打瞌睡 "
        "(4)裝死 (5)羅丹 (6)其他 (Q)沒事？", genbuf, 3, DOECHO);
    if (genbuf[0] == 'q' || genbuf[0] == 'Q') {
    currutmp->mode = mode0;
    currstat = stat0;
    return 0;
    } else if (genbuf[0] >= '1' && genbuf[0] <= '6')
    currutmp->destuid = genbuf[0] - '0';
    else
    currutmp->destuid = 0;

    if (currutmp->destuid == 6)
    if (!cuser.userlevel ||
        !getdata(b_lines - 1, 0, "發呆的理由：",
             currutmp->chatid, sizeof(currutmp->chatid), DOECHO))
        currutmp->destuid = 0;
    do {
    move(b_lines - 2, 0);
    clrtoeol();
    snprintf(buf, sizeof(buf),
         "(鎖定螢幕)發呆原因: %s", (currutmp->destuid != 6) ?
         IdleTypeTable[currutmp->destuid] : currutmp->chatid);
    outs(buf);
    refresh();
    getdata(b_lines - 1, 0, MSG_PASSWD, passbuf, sizeof(passbuf), NOECHO);
    passbuf[8] = '\0';
    }
    while (!checkpasswd(cuser.passwd, passbuf) &&
       strcmp(STR_GUEST, cuser.userid));

    currutmp->mode = mode0;
    currutmp->destuid = destuid0;
    currstat = stat0;

    return 0;
}

int
t_qchicken(void)
{
    char            uident[STRLEN];

    stand_title("查詢寵物");
    usercomplete(msg_uid, uident);
    if (uident[0])
    chicken_query(uident);
    return 0;
}

int
t_query(void)
{
    char            uident[STRLEN];

    stand_title("查詢網友");
    usercomplete(msg_uid, uident);
    if (uident[0])
    my_query(uident);
    return 0;
}

int
t_talk()
{
    char            uident[16];
    int             tuid, unum, ucount;
    userinfo_t     *uentp;
    char            genbuf[4];
    /*
     * if (count_ulist() <= 1){ outs("目前線上只有您一人，快邀請朋友來光臨【"
     * BBSNAME "】吧！"); return XEASY; }
     */
    stand_title("打開話匣子");
    generalnamecomplete(msg_uid, uident, sizeof(uident),
            SHM->UTMPnumber,
            completeutmp_compar,
            completeutmp_permission,
            completeutmp_getname);
    if (uident[0] == '\0')
    return 0;

    move(3, 0);
    if (!(tuid = searchuser(uident)) || tuid == usernum) {
    outs(err_uid);
    pressanykey();
    return 0;
    }
    /* multi-login check */
    unum = 1;
    while ((ucount = count_logins(tuid, 0)) > 1) {
    outs("(0) 不想 talk 了...\n");
    count_logins(tuid, 1);
    getdata(1, 33, "請選擇一個聊天對象 [0]：", genbuf, 4, DOECHO);
    unum = atoi(genbuf);
    if (unum == 0)
        return 0;
    move(3, 0);
    clrtobot();
    if (unum > 0 && unum <= ucount)
        break;
    }

    if ((uentp = (userinfo_t *) search_ulistn(tuid, unum)))
    my_talk(uentp, friend_stat(currutmp, uentp));

    return 0;
}

/* 有人來串門子了，回應呼叫器 */
static userinfo_t *uip;
void
talkreply(void)
{
    struct hostent *h;
    char            buf[4];
    struct sockaddr_in sin;
    char            genbuf[200];
    int             a, sig = currutmp->sig;

    talkrequest = NA;
    uip = &SHM->uinfo[currutmp->destuip];
    snprintf(page_requestor, sizeof(page_requestor),
         "%s (%s)", uip->userid, uip->username);
    currutmp->destuid = uip->uid;
    currstat = REPLY;       /* 避免出現動畫 */

    clear();

    prints("\n\n");
    prints("       (Y) 讓我們 %s 吧！"
       "     (A) 我現在很忙，請等一會兒再 call 我\n", sig_des[sig]);
    prints("       (N) 我現在不想 %s"
       "      (B) 對不起，我有事情不能跟你 %s\n",
       sig_des[sig], sig_des[sig]);
    prints("       (C) 請不要吵我好嗎？"
       "     (D) 我要離站囉..下次再聊吧.......\n");
    prints("       (E) 有事嗎？請先來信"
       "     (F) \033[1;33m我自己輸入理由好了...\033[m\n");
    prints("       (1) %s？先拿100銀兩來"
       "  (2) %s？先拿1000銀兩來..\n\n", sig_des[sig], sig_des[sig]);

    getuser(uip->userid);
    currutmp->msgs[0].pid = uip->pid;
    strlcpy(currutmp->msgs[0].userid, uip->userid, sizeof(currutmp->msgs[0].userid));
    strlcpy(currutmp->msgs[0].last_call_in, "呼叫、呼叫，聽到請回答 (Ctrl-R)",
        sizeof(currutmp->msgs[0].last_call_in));
    prints("對方來自 [%s]，共上站 %d 次，文章 %d 篇\n",
       uip->from, xuser.numlogins, xuser.numposts);
    showplans(uip->userid);
    show_call_in(0, 0);

    snprintf(genbuf, sizeof(genbuf),
         "你想跟 %s %s啊？請選擇(Y/N/A/B/C/D/E/F/1/2)[N] ",
         page_requestor, sig_des[sig]);
    getdata(0, 0, genbuf, buf, sizeof(buf), LCECHO);

    if (uip->mode != PAGE) {
    snprintf(genbuf, sizeof(genbuf),
         "%s已停止呼叫，按Enter繼續...", page_requestor);
    getdata(0, 0, genbuf, buf, sizeof(buf), LCECHO);
    return;
    }
    currutmp->msgcount = 0;
    strlcpy(save_page_requestor, page_requestor, sizeof(save_page_requestor));
    memset(page_requestor, 0, sizeof(page_requestor));
    if (!(h = gethostbyname("localhost"))) {
    perror("gethostbyname");
    return;
    }
    memset(&sin, 0, sizeof(sin));
    sin.sin_family = h->h_addrtype;
    memcpy(&sin.sin_addr, h->h_addr, h->h_length);
    sin.sin_port = uip->sockaddr;
    a = socket(sin.sin_family, SOCK_STREAM, 0);
    if ((connect(a, (struct sockaddr *) & sin, sizeof(sin)))) {
    perror("connect err");
    return;
    }
    if (!buf[0] || !strchr("yabcdef12", buf[0]))
    buf[0] = 'n';
    write(a, buf, 1);
    if (buf[0] == 'f' || buf[0] == 'F') {
    if (!getdata(b_lines, 0, "不能的原因：", genbuf, 60, DOECHO))
        strlcpy(genbuf, "不告訴你咧 !! ^o^", sizeof(genbuf));
    write(a, genbuf, 60);
    }
    uip->destuip = currutmp - &SHM->uinfo[0];
    if (buf[0] == 'y')
    switch (sig) {
    case SIG_DARK:
        main_dark(a, uip);
        break;
    case SIG_PK:
        chickenpk(a);
        break;
    case SIG_GOMO:
        gomoku(a);
        break;
    case SIG_CHC:
        chc(a);
        break;
    case SIG_TALK:
    default:
        do_talk(a);
    }
    else
    close(a);
    clear();
}

/* 網友動態簡表 */
/*
 * not used static int shortulist(userinfo_t * uentp) { static int lineno,
 * fullactive, linecnt; static int moreactive, page, num; char uentry[50];
 * int state;
 * 
 * if (!lineno){ lineno = 3; page = moreactive ? (page + p_lines * 3) : 0;
 * linecnt = num = moreactive = 0; move(1, 70); prints("Page: %d", page /
 * (p_lines) / 3 + 1); move(lineno, 0); }
 * 
 * if (uentp == NULL){ int finaltally;
 * 
 * clrtoeol(); move(++lineno, 0); clrtobot(); finaltally = fullactive; lineno =
 * fullactive = 0; return finaltally; }
 * 
 * if ((!HAS_PERM(PERM_SYSOP) && !HAS_PERM(PERM_SEECLOAK) && uentp->invisible)
 * || ((friend_stat(currutmp, uentp) & HRM) && !HAS_PERM(PERM_SYSOP))){ if
 * (lineno >= b_lines) return 0; if (num++ < page) return 0; memset(uentry, '
 * ', 25); uentry[25] = '\0'; } else{ fullactive++; if (lineno >= b_lines){
 * moreactive = 1; return 0; } if (num++ < page) return 0;
 * 
 * state = (currutmp == uentp) ? 10 :
 * (friend_stat(currutmp,uentp)&ST_FRIEND)>>2;
 * 
 * if (PERM_HIDE(uentp)) state = 9;
 * 
 * sprintf(uentry, "%s%-13s%c%-10s%s ", fcolor[state], uentp->userid,
 * uentp->invisible ? '#' : ' ', modestring(uentp, 1), state ? "\033[0m" :
 * ""); } if (++linecnt < 3){ strcat(uentry, "│"); outs(uentry); } else{
 * outs(uentry); linecnt = 0; clrtoeol(); move(++lineno, 0); } return 0; }
 */