/
mbbsd.c
2218 lines (1893 loc) · 53.4 KB
/
mbbsd.c
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#include "bbs.h"
#include "daemons.h"
#include <sys/wait.h>
#include <netinet/tcp.h>
#ifdef __linux__
# ifdef CRITICAL_MEMORY
# include <malloc.h>
# endif
# ifdef DEBUG
# include <mcheck.h>
# endif
#endif
#define SOCKET_QLEN 4
void do_aloha(const char *hello);
static void getremotename(const struct in_addr from, char *rhost);
//////////////////////////////////////////////////////////////////
// Site Optimization
// override these macro if you need more optimization,
// based on OS/lib/package...
#ifndef OPTIMIZE_SOCKET
#define OPTIMIZE_SOCKET(sock) do {} while (0)
#endif
#ifndef XAUTH_HOST
#define XAUTH_HOST(x) x
#endif
#ifndef XAUTH_GETREMOTENAME
#define XAUTH_GETREMOTENAME(x) x
#endif
static int listen_port;
static int is_secure_connection;
#define MAX_BINDPORT 20
enum TermMode {
TermMode_TELNET,
TermMode_TTY,
};
struct ProgramOption {
bool daemon_mode;
bool tunnel_mode;
enum TermMode term_mode;
int term_width, term_height;
int nport;
int port[MAX_BINDPORT];
int flag_listenfd;
char* flag_tunnel_path;
bool flag_fork;
bool flag_checkload;
char flag_user[IDLEN+1];
};
static void
free_program_option(struct ProgramOption *opt)
{
if (!opt)
return;
free(opt->flag_tunnel_path);
free(opt);
}
#ifdef DETECT_CLIENT
Fnv32_t client_code=FNV1_32_INIT;
void UpdateClientCode(unsigned char c)
{
FNV1A_CHAR(c, client_code);
}
void LogClientCode()
{
int fd = OpenCreate("log/client_code",O_WRONLY | O_APPEND);
if(fd>=0) {
write(fd, &client_code, sizeof(client_code));
close(fd);
}
}
#endif
#ifdef USE_RFORK
#define fork() rfork(RFFDG | RFPROC | RFNOWAIT)
#endif
/* set signal handler, which won't be reset once signal comes */
static void
signal_restart(int signum, void (*handler) (int))
{
struct sigaction act;
act.sa_handler = handler;
memset(&(act.sa_mask), 0, sizeof(sigset_t));
act.sa_flags = 0;
sigaction(signum, &act, NULL);
}
static void
start_daemon(struct ProgramOption *option)
{
#ifndef VALGRIND
int n, fd;
#endif
/*
* More idiot speed-hacking --- the first time conversion makes the C
* library open the files containing the locale definition and time zone.
* If this hasn't happened in the parent process, it happens in the
* children, once per connection --- and it does add up.
*/
time_t dummy = time(NULL);
struct tm dummy_time;
char buf[32];
localtime_r(&dummy, &dummy_time);
strftime(buf, sizeof(buf), "%d/%b/%Y:%H:%M:%S", &dummy_time);
if (option->flag_fork) {
if (fork()) {
exit(0);
}
}
/* rocker.011018: it's a good idea to close all unexcept fd!! */
#ifndef VALGRIND
n = getdtablesize();
while (n)
close(--n);
if( ((fd = OpenCreate("log/stderr", O_WRONLY | O_APPEND)) >= 0) && fd != 2 ){
dup2(fd, 2);
close(fd);
}
#endif
if(getenv("SSH_CLIENT"))
unsetenv("SSH_CLIENT");
if(getenv("SSH_CONNECTION"))
unsetenv("SSH_CONNECTION");
/*
* rocker.011018: we don't need to remember original tty, so request a
* new session id
*/
setsid();
/*
* rocker.011018: after new session, we should insure the process is
* clean daemon
*/
if (option->flag_fork) {
if (fork()) {
exit(0);
}
}
}
static void
reapchild(int sig GCC_UNUSED)
{
int state, pid;
while ((pid = waitpid(-1, &state, WNOHANG | WUNTRACED)) > 0);
}
void
log_usies(const char *mode, const char *mesg)
{
now = time(NULL);
if (!mesg)
log_filef(FN_USIES, LOG_CREAT,
"%s %s %-12s Stay:%d\n",
Cdate(&now), mode, cuser.userid ,
(int)(now - login_start_time) / 60);
else
log_filef(FN_USIES, LOG_CREAT,
"%s %s %-12s %s\n",
Cdate(&now), mode, cuser.userid, mesg);
/* 追蹤使用者 */
if (HasUserPerm(PERM_LOGUSER))
log_user("logout");
}
void
u_exit(const char *mode)
{
currmode = 0;
/* close fd 0 & 1 to terminate network */
close(0);
close(1);
// verify if utmp is valid. only flush data if utmp is correct.
assert(strncmp(currutmp->userid,cuser.userid, IDLEN)==0);
if(strncmp(currutmp->userid, cuser.userid, IDLEN)!=0)
return;
auto_backup();
save_brdbuf();
brc_finalize();
// XXX TOTO for guests, skip the save process?
pwcuExitSave();
setutmpbid(0);
purge_utmp(currutmp);
log_usies(mode, NULL);
}
void
abort_bbs(int sig GCC_UNUSED)
{
/* ignore normal signals */
Signal(SIGALRM, SIG_IGN);
Signal(SIGUSR1, SIG_IGN);
Signal(SIGUSR2, SIG_IGN);
Signal(SIGHUP, SIG_IGN);
Signal(SIGTERM, SIG_IGN);
Signal(SIGPIPE, SIG_IGN);
if (currmode) {
STATINC(STAT_MBBSD_ABORTED);
u_exit("ABORTED");
}
exit(0);
}
#ifdef GCC_NORETURN
static void abort_bbs_debug(int sig) GCC_NORETURN;
#endif
/* NOTE: It's better to use signal-safe functions. Avoid to call
* functions with global/static variable -- data may be corrupted */
static void
abort_bbs_debug(int sig)
{
int i;
sigset_t sigset;
switch(sig) {
case SIGINT: STATINC(STAT_SIGINT); break;
case SIGQUIT: STATINC(STAT_SIGQUIT); break;
case SIGILL: STATINC(STAT_SIGILL); break;
case SIGABRT: STATINC(STAT_SIGABRT); break;
case SIGFPE: STATINC(STAT_SIGFPE); break;
case SIGBUS: STATINC(STAT_SIGBUS); break;
case SIGSEGV: STATINC(STAT_SIGSEGV); break;
case SIGXCPU: STATINC(STAT_SIGXCPU); break;
}
/* ignore normal signals */
Signal(SIGALRM, SIG_IGN);
Signal(SIGUSR1, SIG_IGN);
Signal(SIGUSR2, SIG_IGN);
Signal(SIGHUP, SIG_IGN);
Signal(SIGTERM, SIG_IGN);
Signal(SIGPIPE, SIG_IGN);
Signal(SIGSEGV, SIG_DFL);
/* unblock */
sigemptyset(&sigset);
sigaddset(&sigset, SIGINT);
sigaddset(&sigset, SIGQUIT);
sigaddset(&sigset, SIGILL);
sigaddset(&sigset, SIGABRT);
sigaddset(&sigset, SIGFPE);
sigaddset(&sigset, SIGBUS);
sigaddset(&sigset, SIGSEGV);
sigaddset(&sigset, SIGXCPU);
sigprocmask(SIG_UNBLOCK, &sigset, NULL);
fprintf(stderr, "%d %d %d %.12s\n", (int)time4(NULL), getpid(), sig, cuser.userid);
#define CRASH_MSG ANSI_RESET \
"\r\n程式異常, 立刻斷線. \r\n" \
"請洽 " BN_BUGREPORT " 板詳述問題發生經過。\r\n"
#define XCPU_MSG ANSI_RESET \
"\r\n程式耗用過多計算資源, 立刻斷線。\r\n" \
"可能是 (a)執行太多耗用資源的動作 或 (b)程式掉入無窮迴圈. "\
"請洽 " BN_BUGREPORT " 板詳述問題發生經過。\r\n"
if(sig==SIGXCPU)
write(1, XCPU_MSG, sizeof(XCPU_MSG));
else
write(1, CRASH_MSG, sizeof(CRASH_MSG));
sleep(5);
/* close all file descriptors (including the network connection) */
for (i = 0; i < 256; ++i)
close(i);
/* log */
/* assume vsnprintf() in log_file() is signal-safe, is it? */
log_filef("log/crash.log", LOG_CREAT,
"%d %d %d %.12s\n", (int)time4(NULL), getpid(), sig, cuser.userid);
/* try logout... not a good idea, maybe crash again. now disabled */
/*
if (currmode) {
currmode = 0;
u_exit("AXXED");
}
*/
#ifdef DEBUGSLEEP
#ifndef VALGRIND
setproctitle("debug me!(%d)(%s,%d)", sig, cuser.userid, currstat);
#endif
/* do this manually to prevent broken stuff */
/* will broken currutmp cause problems here? hope not... */
if(currutmp && strncmp(cuser.userid, currutmp->userid, IDLEN) == EQUSTR)
currutmp->mode = DEBUGSLEEPING;
sleep(DEBUGSLEEP_SECONDS);
#endif
exit(0);
}
#ifdef CPULIMIT_PER_DAY
static void
signal_xcpu_handler(int sig)
{
static time_t last_time_exceeded = 0;
struct rlimit rml;
int margin_for_handler = 5;
bool give_more_time = true;
if (last_time_exceeded == 0)
last_time_exceeded = login_start_time;
assert(last_time_exceeded);
// 不用 (time(0) - login_start_time) 來平均, 避免用好幾天之後突然狂吃 cpu 的狀況.
if (time(0) - last_time_exceeded < DAY_SECONDS)
give_more_time = false;
last_time_exceeded = time(0);
getrlimit(RLIMIT_CPU, &rml);
// reach hard limit
if (rml.rlim_cur + CPULIMIT_PER_DAY + margin_for_handler > rml.rlim_max)
give_more_time = false;
if (!give_more_time) {
abort_bbs_debug(sig);
assert(0); // shout not reach here
}
rml.rlim_cur += CPULIMIT_PER_DAY;
setrlimit(RLIMIT_CPU, &rml);
}
#endif
/* 登錄 BBS 程式 */
static void
mysrand(void)
{
unsigned int seed;
must_getrandom(&seed, sizeof(seed));
seed ^= getpid();
srandom(seed);
}
void
talk_request(int sig GCC_UNUSED)
{
STATINC(STAT_TALKREQUEST);
bell();
bell();
if (currutmp->msgcount) {
syncnow();
move(0, 0);
clrtoeol();
prints(ANSI_COLOR(33;41) "★%s" ANSI_COLOR(34;47) " [%s] %s " ANSI_RESET,
SHM->uinfo[currutmp->destuip].userid, Cdatelite(&now),
(currutmp->sig == 2) ? "重要消息廣播！(請Ctrl-U,l查看熱訊記錄)"
: "呼叫、呼叫，聽到請回答");
refresh();
} else {
unsigned char mode0 = currutmp->mode;
char c0 = currutmp->chatid[0];
screen_backup_t old_screen;
currutmp->mode = 0;
currutmp->chatid[0] = 1;
scr_dump(&old_screen);
talkreply();
currutmp->mode = mode0;
currutmp->chatid[0] = c0;
scr_restore(&old_screen);
}
}
void
show_call_in(int save, int which)
{
char buf[200];
int mode = currutmp->msgs[which].msgmode;
#ifdef PLAY_ANGEL
if (mode == MSGMODE_TOANGEL) {
snprintf(buf, sizeof(buf), ANSI_COLOR(1;37;46) "★%s" ANSI_COLOR(37;45)
" %s " ANSI_RESET,
currutmp->msgs[which].userid,
currutmp->msgs[which].last_call_in);
// I must be an Angel. Let's try to update angel beats info.
// TODO maybe it's better to move this to "sender".
angel_notify_activity(currutmp->msgs[which].userid);
} else
#endif
snprintf(buf, sizeof(buf), ANSI_COLOR(1;33;46) "★%s" ANSI_COLOR(37;45)
" %s " ANSI_RESET, currutmp->msgs[which].userid,
currutmp->msgs[which].last_call_in);
outmsg(buf);
if (save && mode != MSGMODE_ALOHA) {
char genbuf[200];
if (!fp_writelog) {
sethomefile(genbuf, cuser.userid, fn_writelog);
fp_writelog = fopen(genbuf, "a");
}
if (fp_writelog) {
fprintf(fp_writelog, "%s [%s]\n", buf, Cdatelite(&now));
}
}
}
static int
add_history_water(water_t * w, const msgque_t * msg)
{
memcpy(&w->msg[w->top], msg, sizeof(msgque_t));
w->top++;
w->top %= PAGER_UI_IS(PAGER_UI_OFO) ? 5 : MAX_REVIEW;
if (w->count < MAX_REVIEW)
w->count++;
return w->count;
}
static int
add_history(const msgque_t * msg)
{
int i = 0, j, waterinit = 0;
water_t *tmp;
check_water_init();
if (PAGER_UI_IS(PAGER_UI_ORIG) || PAGER_UI_IS(PAGER_UI_NEW))
add_history_water(&water[0], msg);
if (PAGER_UI_IS(PAGER_UI_NEW) || PAGER_UI_IS(PAGER_UI_OFO)) {
for (i = 0; i < WB_OFO_USER_NUM; i++) {
if (swater[i] == NULL)
break;
if (swater[i]->pid == msg->pid
#ifdef PLAY_ANGEL
&& swater[i]->msg[0].msgmode == msg->msgmode
/* When throwing waterball to angel directly */
#endif
)
break;
}
if (i == WB_OFO_USER_NUM) {
waterinit = 1;
i = WB_OFO_USER_NUM - 1;
memset(swater[i], 0, sizeof(water_t));
} else if (!swater[i]) {
water_usies = i + 1;
swater[i] = &water[i + 1];
waterinit = 1;
}
tmp = swater[i];
if (waterinit) {
memcpy(swater[i]->userid, msg->userid, sizeof(swater[i]->userid));
swater[i]->pid = msg->pid;
}
if (!swater[i]->uin)
swater[i]->uin = currutmp;
for (j = i; j > 0; j--)
swater[j] = swater[j - 1];
swater[0] = tmp;
add_history_water(swater[0], msg);
}
if (PAGER_UI_IS(PAGER_UI_ORIG) || PAGER_UI_IS(PAGER_UI_NEW)) {
if (watermode > 0 &&
(water_which == swater[0] || water_which == &water[0])) {
if (watermode < water_which->count)
watermode++;
t_display_new();
}
}
return i;
}
void
write_request(int sig)
{
int i, msgcount;
STATINC(STAT_WRITEREQUEST);
#ifdef NOKILLWATERBALL
if( reentrant_write_request ) /* kill again by shmctl */
return;
reentrant_write_request = 1;
#endif
syncnow();
check_water_init();
if (PAGER_UI_IS(PAGER_UI_OFO)) {
/* 如果目前正在回水球模式的話, 就不能進行 add_history() ,
因為會改寫 water[], 而使回水球目的爛掉, 所以分成幾種情況考慮.
sig != 0表真的有水球進來, 故顯示.
sig == 0表示沒有水球進來, 不過之前尚有水球還沒寫到 water[].
*/
static int alreadyshow = 0;
if( sig ){ /* 真的有水球進來 */
/* 若原來正在 REPLYING , 則改成 RECVINREPLYING,
這樣在回水球結束後, 會再呼叫一次 write_request(0) */
if( wmofo == REPLYING )
wmofo = RECVINREPLYING;
/* 顯示 */
for( ; alreadyshow < currutmp->msgcount && alreadyshow < MAX_MSGS
; ++alreadyshow ){
bell();
show_call_in(1, alreadyshow);
refresh();
}
}
/* 看看是不是要把 currutmp->msg 拿回 water[] (by add_history())
須要是不在回水球中 (NOTREPLYING) */
if( wmofo == NOTREPLYING &&
(msgcount = currutmp->msgcount) > 0 ){
for( i = 0 ; i < msgcount ; ++i )
add_history(&currutmp->msgs[i]);
if( (currutmp->msgcount -= msgcount) < 0 )
currutmp->msgcount = 0;
alreadyshow = 0;
}
} else {
if (currutmp->mode != 0 &&
currutmp->pager != PAGER_OFF &&
cuser.userlevel != 0 &&
currutmp->msgcount != 0 &&
currutmp->mode != TALK &&
currutmp->mode != EDITING &&
currutmp->mode != CHATING &&
currutmp->mode != PAGE &&
currutmp->mode != IDLE &&
currutmp->mode != MAILALL && currutmp->mode != MONITOR) {
char c0 = currutmp->chatid[0];
int currstat0 = currstat;
unsigned char mode0 = currutmp->mode;
currutmp->mode = 0;
currutmp->chatid[0] = 2;
currstat = HIT;
#ifdef NOKILLWATERBALL
currutmp->wbtime = 0;
#endif
if( (msgcount = currutmp->msgcount) > 0 ){
for( i = 0 ; i < msgcount ; ++i ){
bell();
show_call_in(1, 0);
add_history(&currutmp->msgs[0]);
if( (--currutmp->msgcount) < 0 )
i = msgcount; /* force to exit for() */
else if( currutmp->msgcount > 0 )
memmove(&currutmp->msgs[0],
&currutmp->msgs[1],
sizeof(msgque_t) * currutmp->msgcount);
vkey();
}
}
currutmp->chatid[0] = c0;
currutmp->mode = mode0;
currstat = currstat0;
} else {
bell();
show_call_in(1, 0);
add_history(&currutmp->msgs[0]);
refresh();
currutmp->msgcount = 0;
}
}
#ifdef NOKILLWATERBALL
reentrant_write_request = 0;
currutmp->wbtime = 0; /* race */
#endif
}
static userinfo_t*
getotherlogin(int num)
{
userinfo_t *ui;
do {
if (!(ui = (userinfo_t *) search_ulistn(usernum, num)))
return NULL; /* user isn't logged in */
/* skip sleeping process, this is slow if lots */
if(ui->mode == DEBUGSLEEPING)
num++;
else if(ui->pid <= 0)
num++;
else if(kill(ui->pid, 0) < 0)
num++;
else
break;
} while (1);
return ui;
}
static void
multi_user_check(void)
{
register userinfo_t *ui;
char genbuf[3];
if (HasUserPerm(PERM_SYSOP))
return; /* don't check sysops */
// race condition here, sleep may help..?
if (cuser.userlevel) {
usleep(random()%1000000); // 0~1s
ui = getotherlogin(1);
if(ui == NULL)
return;
move(b_lines-3, 0); clrtobot();
outs("\n" ANSI_COLOR(1) "注意: 您有其它連線已登入此帳號。" ANSI_RESET);
getdata(b_lines - 1, 0, "您想刪除其他重複登入的連線嗎？[Y/n] ",
genbuf, 3, LCECHO);
usleep(random()%5000000); // 0~5s
if (genbuf[0] != 'n') {
do {
// scan again, old ui may be invalid
ui = getotherlogin(1);
if(ui==NULL)
return;
if (ui->pid > 0) {
if(kill(ui->pid, SIGHUP)<0) {
perror("kill SIGHUP fail");
break;
}
log_usies("KICK ", cuser.nickname);
} else {
fprintf(stderr, "id=%s ui->pid=0\n", cuser.userid);
}
usleep(random()%2000000+1000000); // 1~3s
} while(getotherlogin(3) != NULL);
} else {
/* deny login if still have 3 */
if (getotherlogin(3) != NULL) {
sleep(1);
abort_bbs(0); /* Goodbye(); */
}
}
} else {
/* allow multiple guest user */
if (search_ulistn(usernum, MAX_GUEST) != NULL) {
sleep(1);
vmsg("抱歉，目前已有太多 guest 在站上, 請用new註冊。");
exit(1);
}
}
}
void
mkuserdir(const char *userid)
{
char genbuf[PATHLEN];
sethomepath(genbuf, userid);
// assume it is a dir, so just check if it is exist
if (access(genbuf, F_OK) != 0)
Mkdir(genbuf);
}
static int
load_current_user(const char *uid)
{
// userid should be already normalized.
int is_admin_only = 0;
#ifdef ADMIN_PORT
// ----------------------------------------------------- PORT TESTING
// XXX currently this does not work if we're using tunnel.
is_admin_only = (listen_port == ADMIN_PORT);
#endif
// ----------------------------------------------------- NEW ACCOUNT
#ifdef STR_REGNEW
if (!is_admin_only && strcasecmp(uid, STR_REGNEW) == 0) {
# ifndef LOGINASNEW
assert(false);
exit(0);
# endif // !LOGINASNEW
new_register();
clear();
mkuserdir(cuser.userid);
reginit_fav();
} else
#endif
// ----------------------------------------------------- RECOVER ACCOUNT
#ifdef STR_RECOVER
if (!is_admin_only && strcasecmp(uid, STR_RECOVER) == 0) {
// Allow more time due to sending emails for verification code.
alarm(1800);
recover_account();
// Should have exited.
assert(false);
exit(1);
} else
#endif
// --------------------------------------------------- GUEST ACCOUNT
#ifdef STR_GUEST
if (!is_admin_only && strcasecmp(uid, STR_GUEST) == 0) {
if (initcuser(STR_GUEST)< 1) exit (0) ;
pwcuInitGuestPerm();
// can we prevent mkuserdir() here?
mkuserdir(cuser.userid);
} else
#endif
// ---------------------------------------------------- USER ACCOUNT
{
if (!cuser.userid[0] && initcuser(uid) < 1)
exit(0);
if (is_admin_only) {
if (!HasUserPerm(PERM_SYSOP | PERM_BBSADM | PERM_BOARD |
PERM_ACCOUNTS | PERM_CHATROOM |
PERM_VIEWSYSOP | PERM_PRG)) {
puts("\r\n權限不足，請換其它 port 連線。\r\n");
exit(0);
}
}
#ifdef LOCAL_LOGIN_MOD
LOCAL_LOGIN_MOD();
#endif
if (strcasecmp(str_sysop, cuser.userid) == 0){
#ifdef NO_SYSOP_ACCOUNT
exit(0);
#else /* 自動加上各個主要權限 */
// TODO only allow in local connection?
pwcuInitAdminPerm();
#endif
}
/* 早該有 home 了, 不知道為何有的帳號會沒有, 被砍掉了? */
mkuserdir(cuser.userid);
logattempt(cuser.userid, ' ', login_start_time, fromhost);
ensure_user_agreement_version();
}
// check multi user
multi_user_check();
return 1;
}
static void
login_query(char *ruid)
{
#ifdef CONVERT
/* uid 加一位, for gb login */
char uid[IDLEN + 2];
int len;
#else
char uid[IDLEN + 1];
#endif
char passbuf[PASSLEN];
int attempts;
resolve_garbage();
#ifdef DEBUG
move(1, 0);
prints("debugging mode\ncurrent pid: %d\n", getpid());
#else
show_file("etc/Welcome", 1, -1, SHOWFILE_ALLOW_ALL);
#endif
attempts = 0;
while (1) {
if (attempts++ >= LOGINATTEMPTS) {
more("etc/goodbye", NA);
pressanykey();
sleep(3);
exit(1);
}
pwcuInitZero();
#ifdef DEBUG
move(19, 0);
prints("current pid: %d ", getpid());
#endif
if (getdata(20, 0, "請輸入代號，或以 guest 參觀，或以 new 註冊: ",
uid, sizeof(uid), DOECHO) < 1)
{
// got nothing
outs("請重新輸入。\n");
continue;
}
telnet_turnoff_client_detect();
#ifdef CONVERT
/* switch to gb mode if uid end with '.' */
len = strlen(uid);
if (uid[0] && uid[len - 1] == ',') {
set_converting_type(CONV_UTF8);
uid[len - 1] = 0;
redrawwin();
}
else if (uid[0] && uid[len - 1] == '.') {
outs("Sorry, GB encoding is not supported anymore. Please use UTF-8 (id,)");
continue;
}
else if (len >= IDLEN + 1)
uid[IDLEN] = 0;
#endif
if (0) {
assert(false);
#ifdef STR_GUEST
} else if (strcasecmp(uid, STR_GUEST) == 0) { /* guest */
strlcpy(ruid, STR_GUEST, IDLEN+1);
break;
#endif
#ifdef STR_REGNEW
} else if (strcasecmp(uid, STR_REGNEW) == 0) {
# ifndef LOGINASNEW
outs("本系統目前無法以 " STR_REGNEW " 註冊"
# ifdef STR_GUEST
", 請用 " STR_GUEST " 進入"
# endif // STR_GUEST
"\n");
continue;
# endif // !LOGINASNEW
strlcpy(ruid, STR_REGNEW, IDLEN+1);
break;
#endif // STR_REGNEW
#ifdef STR_RECOVER
} else if (strcasecmp(uid, STR_RECOVER) == 0) {
strlcpy(ruid, STR_RECOVER, IDLEN+1);
break;
#endif // STR_RECOVER
} else if (is_validuserid(uid)) {
/* normal user */
int valid_user = 1;
/* load the user record */
if (initcuser(uid) < 1 || !cuser.userid[0])
valid_user = 0;
/* check if the user is forced to login via secure connection. */
if (valid_user &&
(passwd_require_secure_connection(&cuser) && !is_secure_connection)) {
outs("抱歉，此帳號已設定為只能使用安全連線(如ssh)登入。\n");
doupdate();
sleep(5);
continue;
}
/* ask user for password, even the user does not exists. */
getdata(21, 0, MSG_PASSWD,
passbuf, sizeof(passbuf), NOECHO);
passbuf[8] = '\0';
move (22, 0); clrtoeol();
outs("正在檢查密碼...");
move(22, 0); refresh();
/* prepare for later */
clrtoeol();
if (!valid_user || !checkpasswd(cuser.passwd, passbuf)) {
if(is_validuserid(cuser.userid))
logattempt(cuser.userid , '-', login_start_time, fromhost);
sleep(1);
outs(ERR_PASSWD);
} else {
strlcpy(ruid, cuser.userid, IDLEN+1);
outs("密碼正確！ 開始登入系統...");
move(22, 0); refresh();
clrtoeol();
break;
}
} else {
outs(err_uid);
}
}
// auth ok.
#ifdef DETECT_CLIENT
LogClientCode();
#endif
}
static void
check_BM(void)
{
int i, total;
assert(HasUserPerm(PERM_BM));
for( i = 0, total = num_boards() ; i < total ; ++i )
if( is_BM_cache(i + 1) ) /* XXXbid */
return;
// disable BM permission
pwcuBitDisableLevel(PERM_BM);
clear();
outs("\n由於您已有一段時間未再擔任任何看板板主，\n"
"\n板主權(包含進入BM板及加大信箱等)已被收回。\n");
pressanykey();
}
static void
setup_utmp(int mode)
{
/* NOTE, 在 getnewutmpent 之前不應該有任何 slow/blocking function */
userinfo_t uinfo = {0};
uinfo.pid = currpid = getpid();
uinfo.uid = usernum;
uinfo.mode = currstat = mode;
uinfo.userlevel = cuser.userlevel;
uinfo.lastact = time(NULL);
// only enable this after you've really changed talk.c to NOT use from_alias.
uinfo.from_ip = inet_addr(fromhost);
strlcpy(uinfo.userid, cuser.userid, sizeof(uinfo.userid));
strlcpy(uinfo.nickname, cuser.nickname, sizeof(uinfo.nickname));
strlcpy(uinfo.from, fromhost, sizeof(uinfo.from));
uinfo.five_win = cuser.five_win;
uinfo.five_lose = cuser.five_lose;
uinfo.five_tie = cuser.five_tie;
uinfo.chc_win = cuser.chc_win;
uinfo.chc_lose = cuser.chc_lose;
uinfo.chc_tie = cuser.chc_tie;
uinfo.chess_elo_rating = cuser.chess_elo_rating;
uinfo.go_win = cuser.go_win;
uinfo.go_lose = cuser.go_lose;
uinfo.go_tie = cuser.go_tie;
uinfo.dark_win = cuser.dark_win;
uinfo.dark_lose = cuser.dark_lose;
uinfo.dark_tie = cuser.dark_tie;
uinfo.invisible = (cuser.invisible % 2) && (!HasUserPerm(PERM_VIOLATELAW));
uinfo.pager = cuser.pager % PAGER_MODES;
uinfo.withme = cuser.withme & ~WITHME_ALLFLAG;
if(cuser.withme & (cuser.withme<<1) & (WITHME_ALLFLAG<<1))
uinfo.withme = 0;
getnewutmpent(&uinfo);
//////////////////////////////////////////////////////////////////
// 以下可以進行比較花時間的運算。
//////////////////////////////////////////////////////////////////
currmode = MODE_STARTED;
SHM->UTMPneedsort = 1;
strip_nonebig5((unsigned char *)currutmp->nickname, sizeof(currutmp->nickname));