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|
/* $Id$ */
#include "bbs.h"
#define OBUFSIZE 2048
#define IBUFSIZE 128
#ifdef DEBUG
#define register
#endif
/* realXbuf is Xbuf+3 because hz convert library requires buf[-2]. */
static unsigned char real_outbuf[OBUFSIZE+6] = " ", real_inbuf[IBUFSIZE+6] = " ";
static unsigned char *outbuf = real_outbuf + 3, *inbuf = real_inbuf + 3;
static int obufsize = 0, ibufsize = 0;
static int icurrchar = 0;
/* ----------------------------------------------------- */
/* convert routines */
/* ----------------------------------------------------- */
#ifdef CONVERT
extern read_write_type write_type;
extern read_write_type read_type;
extern convert_type input_type;
inline static ssize_t input_wrapper(void *buf, ssize_t count) {
/* input_wrapper is a special case.
* because we may do nothing,
* a if-branch is better than a function-pointer call.
*/
if(input_type) return (*input_type)(buf, count);
else return count;
}
inline static int read_wrapper(int fd, void *buf, size_t count) {
return (*read_type)(fd, buf, count);
}
inline static int write_wrapper(int fd, void *buf, size_t count) {
return (*write_type)(fd, buf, count);
}
#endif
/* ----------------------------------------------------- */
/* output routines */
/* ----------------------------------------------------- */
void
oflush(void)
{
if (obufsize) {
STATINC(STAT_SYSWRITESOCKET);
#ifdef CONVERT
write_wrapper(1, outbuf, obufsize);
#else
write(1, outbuf, obufsize);
#endif
obufsize = 0;
}
}
void
init_buf(void)
{
memset(inbuf, 0, IBUFSIZE);
}
void
output(const char *s, int len)
{
/* Invalid if len >= OBUFSIZE */
assert(len<OBUFSIZE);
if (obufsize + len > OBUFSIZE) {
STATINC(STAT_SYSWRITESOCKET);
#ifdef CONVERT
write_wrapper(1, outbuf, obufsize);
#else
write(1, outbuf, obufsize);
#endif
obufsize = 0;
}
memcpy(outbuf + obufsize, s, len);
obufsize += len;
}
int
ochar(int c)
{
if (obufsize > OBUFSIZE - 1) {
/* suppose one byte data doesn't need to be converted. */
write(1, outbuf, obufsize);
obufsize = 0;
}
outbuf[obufsize++] = c;
return 0;
}
/* ----------------------------------------------------- */
/* input routines */
/* ----------------------------------------------------- */
static int i_newfd = 0;
static struct timeval i_to, *i_top = NULL;
static int (*flushf) () = NULL;
void
add_io(int fd, int timeout)
{
i_newfd = fd;
if (timeout) {
i_to.tv_sec = timeout;
i_to.tv_usec = 16384; /* Ptt: 改成16384 避免不按時for loop吃cpu
* time 16384 約每秒64次 */
i_top = &i_to;
} else
i_top = NULL;
}
int
num_in_buf(void)
{
return ibufsize - icurrchar;
}
/*
* dogetch() is not reentrant-safe. SIGUSR[12] might happen at any time, and
* dogetch() might be called again, and then ibufsize/icurrchar/inbuf might
* be inconsistent. We try to not segfault here...
*/
static int
dogetch(void)
{
ssize_t len;
static time4_t lastact;
if (ibufsize <= icurrchar) {
if (flushf)
(*flushf) ();
refresh();
if (i_newfd) {
struct timeval timeout;
fd_set readfds;
if (i_top)
timeout = *i_top; /* copy it because select() might
* change it */
FD_ZERO(&readfds);
FD_SET(0, &readfds);
FD_SET(i_newfd, &readfds);
/* jochang: modify first argument of select from FD_SETSIZE */
/* since we are only waiting input from fd 0 and i_newfd(>0) */
STATINC(STAT_SYSSELECT);
while ((len = select(i_newfd + 1, &readfds, NULL, NULL,
i_top ? &timeout : NULL)) < 0) {
if (errno != EINTR)
abort_bbs(0);
/* raise(SIGHUP); */
}
if (len == 0){
#ifdef OUTTA_TIMER
now = SHM->GV2.e.now;
#else
now = time(0);
#endif
return I_TIMEOUT;
}
if (i_newfd && FD_ISSET(i_newfd, &readfds)){
#ifdef OUTTA_TIMER
now = SHM->GV2.e.now;
#else
now = time(0);
#endif
return I_OTHERDATA;
}
}
#ifdef NOKILLWATERBALL
if( currutmp && currutmp->msgcount && !reentrant_write_request )
write_request(1);
#endif
STATINC(STAT_SYSREADSOCKET);
do {
len = tty_read(inbuf, IBUFSIZE);
/* tty_read will handle abort_bbs.
* len <= 0: read more */
#ifdef CONVERT
if(len > 0)
len = input_wrapper(inbuf, len);
#endif
} while (len <= 0);
ibufsize = len;
icurrchar = 0;
}
if (currutmp) {
#ifdef OUTTA_TIMER
now = SHM->GV2.e.now;
#else
now = time(0);
#endif
/* 3 秒內超過兩 byte 才算 active, anti-antiidle.
* 不過方向鍵等組合鍵不止 1 byte */
if (now - lastact < 3)
currutmp->lastact = now;
lastact = now;
}
return (unsigned char)inbuf[icurrchar++];
}
static int water_which_flag = 0;
int
igetch(void)
{
register int ch, mode = 0, last = 0;
while (1) {
ch = dogetch();
/* for escape codes, check
* http://support.dell.com/support/edocs/systems/pe2650/en/ug/5g387ad0.htm
*/
if (mode == 0 && ch == KEY_ESC)
mode = 1;
else if (mode == 1) {
/* Escape sequence */
if (ch == '[' || ch == 'O')
mode = 2;
else if (ch == '1' || ch == '4') /* what is this!? */
{ mode = 3; last = ch; }
else {
KEY_ESC_arg = ch;
return KEY_ESC;
}
}
else if (mode == 2)
{
/* ^[ or ^O,
* ordered by frequency */
if(ch >= 'A' && ch <= 'D') /* Cursor key */
{
return KEY_UP + (ch - 'A');
}
else if (ch >= '1' && ch <= '6') /* Ins Del Home End PgUp PgDn */
{
mode = 3; last = ch;
continue;
}
else if(ch == 'O')
{
mode = 4;
continue;
}
else if(ch == 'Z')
{
return KEY_STAB;
} else if (ch == '0')
{
if (dogetch() == 'Z')
return KEY_STAB;
}
}
else if (mode == 3)
{
/* ^[[1-6] */
/* ~: Ins Del Home End PgUp PgDn */
if(ch == '~')
return KEY_HOME + (last - '1');
else if (last == '1')
{
if (ch >= '1' && ch <= '6')
{
dogetch(); /* must be '~' */
return KEY_F1 + ch - '1';
}
else if (ch >= '7' && ch <= '9')
{
dogetch(); /* must be '~' */
return KEY_F6 + ch - '7';
}
} else if (last == '2')
{
if (ch >= '0' && ch <= '4')
{
dogetch(); /* hope you are '~' */
return KEY_F9 + ch - '0';
}
}
}
else if(mode == 4)
{
/* ^[O ... */
if (ch >= 'p' && ch <= 'z')
return KEY_F1 + (ch - 'p');
else if (ch == 'a')
return KEY_F12;
}
else // here is switch for default keys
switch (ch) { // XXX: indent error
#ifdef DEBUG
case Ctrl('Q'):{
struct rusage ru;
getrusage(RUSAGE_SELF, &ru);
vmsg("sbrk: %d KB, idrss: %d KB, isrss: %d KB",
((int)sbrk(0) - 0x8048000) / 1024,
(int)ru.ru_idrss, (int)ru.ru_isrss);
}
continue;
#endif
case Ctrl('L'):
redoscr();
continue;
case Ctrl('U'):
if (currutmp != NULL && currutmp->mode != EDITING
&& currutmp->mode != LUSERS && currutmp->mode) {
void *screen0;
int oldroll = roll;
int y, x, my_newfd;
// FIXME reveal heap data or crash if screen resize
getyx(&y, &x);
screen0=malloc(screen_backupsize(t_lines, big_picture));
screen_backup(t_lines, big_picture, screen0);
my_newfd = i_newfd;
i_newfd = 0;
t_users();
i_newfd = my_newfd;
screen_restore(t_lines, big_picture, screen0);
free(screen0);
roll = oldroll;
move(y, x);
redoscr();
continue;
}
return ch;
case KEY_TAB:
if (WATERMODE(WATER_ORIG) || WATERMODE(WATER_NEW))
if (currutmp != NULL && watermode > 0) {
watermode = (watermode + water_which->count)
% water_which->count + 1;
t_display_new();
continue;
}
return ch;
case Ctrl('R'):
if (currutmp == NULL)
return (ch);
if (currutmp->msgs[0].pid &&
WATERMODE(WATER_OFO) && wmofo == NOTREPLYING) {
int y, x, my_newfd;
void *screen0;
screen0=malloc(screen_backupsize(t_lines, big_picture));
screen_backup(t_lines, big_picture, screen0);
getyx(&y, &x);
my_newfd = i_newfd;
i_newfd = 0;
my_write2();
screen_restore(t_lines, big_picture, screen0);
free(screen0);
i_newfd = my_newfd;
move(y, x);
redoscr();
continue;
} else if (!WATERMODE(WATER_OFO)) {
if (watermode > 0) {
watermode = (watermode + water_which->count)
% water_which->count + 1;
t_display_new();
continue;
} else if (currutmp->mode == 0 &&
(currutmp->chatid[0] == 2 || currutmp->chatid[0] == 3) &&
water_which->count != 0 && watermode == 0) {
/* 第二次按 Ctrl-R */
watermode = 1;
t_display_new();
continue;
} else if (watermode == -1 && currutmp->msgs[0].pid) {
/* 第一次按 Ctrl-R (必須先被丟過水球) */
void *screen0;
int y, x, my_newfd;
getyx(&y, &x);
screen0=malloc(screen_backupsize(t_lines, big_picture));
screen_backup(t_lines, big_picture, screen0);
/* 如果正在talk的話先不處理對方送過來的封包 (不去select) */
my_newfd = i_newfd;
i_newfd = 0;
show_call_in(0, 0);
watermode = 0;
#ifndef PLAY_ANGEL
my_write(currutmp->msgs[0].pid, "水球丟過去: ",
currutmp->msgs[0].userid, WATERBALL_GENERAL, NULL);
#else
switch (currutmp->msgs[0].msgmode) {
case MSGMODE_TALK:
case MSGMODE_WRITE:
my_write(currutmp->msgs[0].pid, "水球丟過去: ",
currutmp->msgs[0].userid, WATERBALL_GENERAL, NULL);
break;
case MSGMODE_FROMANGEL:
my_write(currutmp->msgs[0].pid, "再問他一次: ",
currutmp->msgs[0].userid, WATERBALL_ANGEL, NULL);
break;
case MSGMODE_TOANGEL:
my_write(currutmp->msgs[0].pid, "回答小主人: ",
currutmp->msgs[0].userid, WATERBALL_ANSWER, NULL);
break;
}
#endif
i_newfd = my_newfd;
/* 還原螢幕 */
screen_restore(t_lines, big_picture, screen0);
free(screen0);
move(y, x);
redoscr();
continue;
}
}
return ch;
case Ctrl('T'):
if (WATERMODE(WATER_ORIG) || WATERMODE(WATER_NEW)) {
if (watermode > 0) {
if (watermode > 1)
watermode--;
else
watermode = water_which->count;
t_display_new();
continue;
}
}
return ch;
case Ctrl('F'):
if (WATERMODE(WATER_NEW)) {
if (watermode > 0) {
if (water_which_flag == (int)water_usies)
water_which_flag = 0;
else
water_which_flag =
(water_which_flag + 1) % (int)(water_usies + 1);
if (water_which_flag == 0)
water_which = &water[0];
else
water_which = swater[water_which_flag - 1];
watermode = 1;
t_display_new();
continue;
}
}
return ch;
case Ctrl('G'):
if (WATERMODE(WATER_NEW)) {
if (watermode > 0) {
water_which_flag = (water_which_flag + water_usies) % (water_usies + 1);
if (water_which_flag == 0)
water_which = &water[0];
else
water_which = swater[water_which_flag - 1];
watermode = 1;
t_display_new();
continue;
}
}
return ch;
case Ctrl('J'): /* Ptt 把 \n 拿掉 */
#ifdef PLAY_ANGEL
/* Seams some telnet client still send CR LF when changing lines.
CallAngel();
*/
#endif
continue;
default:
return ch;
}
}
// should not reach here. just to make compiler happy.
return 0;
}
/*
* wait user input anything for f seconds.
* Return 1 if anything available.
*/
int
wait_input(float f, int flDoRefresh)
{
int sel = 0;
fd_set readfds;
struct timeval tv;
if(num_in_buf() > 0)
return 1;
FD_ZERO(&readfds);
FD_SET(0, &readfds);
if(flDoRefresh)
refresh();
tv.tv_sec = (long) f;
tv.tv_usec = (f - (long)f) * 1000000L;
#ifdef STATINC
STATINC(STAT_SYSSELECT);
#endif
do {
sel = select(1, &readfds, NULL, NULL, &tv);
} while (sel < 0 && errno == EINTR);
/* EINTR, interrupted. I don't care! */
if(sel == 0)
return 0;
return 1;
}
/**
* 根據 mode 來 strip 字串 str,並把結果存到 buf
* @param buf
* @param str
* @param mode enum {STRIP_ALL = 0, ONLY_COLOR, NO_RELOAD};
* STRIP_ALL: ??
* ONLY_COLOR: ??
* NO_RELOAD: 不 strip (?)
*/
int
strip_ansi(char *buf, const char *str, int mode)
{
register int count = 0;
static const char EscapeFlag[] = {
/* 0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
/* 10 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ,0, 0, 0, 0, 0,
/* 20 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
/* 30 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0, 0, /* 0~9 ;= */
/* 40 */ 0, 2, 2, 2, 2, 0, 0, 0, 2, 2, 2, 2, 0, 0, 0, 0, /* ABCDHIJK */
/* 50 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
/* 60 */ 0, 0, 0, 0, 0, 0, 2, 0, 2, 0, 0, 0, 2, 2, 0, 0, /* fhlm */
/* 70 */ 0, 0, 0, 2, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* su */
/* 80 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
/* 90 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
/* A0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
/* B0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
/* C0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
/* D0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
/* E0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
/* F0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
};
#define isEscapeParam(X) (EscapeFlag[(int)(X)] & 1)
#define isEscapeCommand(X) (EscapeFlag[(int)(X)] & 2)
for(; *str; ++str)
if( *str != ESC_CHR ){
if( buf )
*buf++ = *str;
++count;
}else{
const char* p = str + 1;
if( *p != '[' ){
++str;
continue;
}
while(isEscapeParam(*++p));
if( (mode == NO_RELOAD && isEscapeCommand(*p)) ||
(mode == ONLY_COLOR && *p == 'm' )){
register int len = p - str + 1;
if( buf ){
strncpy(buf, str, len);
buf += len;
}
count += len;
}
str = p;
}
if( buf )
*buf = 0;
return count;
}
void
strip_nonebig5(unsigned char *str, int maxlen)
{
int i;
int len=0;
for(i=0;i<maxlen && str[i];i++) {
if(32<=str[i] && str[i]<128)
str[len++]=str[i];
else if(str[i]==255) {
if(i+1<maxlen)
if(251<=str[i+1] && str[i+1]<=254) {
i++;
if(i+1<maxlen && str[i+1])
i++;
}
continue;
} else if(str[i]&0x80) {
if(i+1<maxlen)
if((0x40<=str[i+1] && str[i+1]<=0x7e) ||
(0xa1<=str[i+1] && str[i+1]<=0xfe)) {
str[len++]=str[i];
str[len++]=str[i+1];
i++;
}
}
}
if(len<maxlen)
str[len]='\0';
}
#ifdef DBCSAWARE_GETDATA
#define ISDBCSAWARE() (cuser.uflag & DBCSAWARE_FLAG)
int getDBCSstatus(unsigned char *s, int pos)
{
int sts = DBCS_ASCII;
while(pos >= 0)
{
if(sts == DBCS_LEADING)
sts = DBCS_TRAILING;
else if (*s >= 0x80)
{
sts = DBCS_LEADING;
} else {
sts = DBCS_ASCII;
}
s++, pos--;
}
return sts;
}
#else
#define dbcs_off (1)
#endif
int
oldgetdata(int line, int col, const char *prompt, char *buf, int len, int echo)
{
register int ch, i;
int clen;
int x = col, y = line;
#define MAXLASTCMD 12
static char lastcmd[MAXLASTCMD][80];
strip_ansi(buf, buf, STRIP_ALL);
if (prompt) {
move(line, col);
clrtoeol();
outs(prompt);
x += strip_ansi(NULL, prompt, STRIP_ALL);
}
if (!echo) {
len--;
clen = 0;
while ((ch = igetch()) != '\r') {
if (ch == '\177' || ch == Ctrl('H')) {
if (!clen) {
bell();
continue;
}
clen--;
continue;
}
if (!isprint(ch)) {
continue;
}
if (clen >= len) {
continue;
}
buf[clen++] = ch;
}
buf[clen] = '\0';
outc('\n');
oflush();
} else {
int cmdpos = 0;
int currchar = 0;
standout();
for(i=0; i<len; i++)
outc(' ');
standend();
len--;
buf[len] = '\0';
move(y, x);
edit_outs(buf);
clen = currchar = strlen(buf);
while (move(y, x + currchar), (ch = igetch()) != '\r') {
switch (ch) {
case KEY_DOWN: case Ctrl('N'):
case KEY_UP: case Ctrl('P'):
strlcpy(lastcmd[cmdpos], buf, sizeof(lastcmd[0]));
if (ch == KEY_UP || ch == Ctrl('P'))
cmdpos++;
else
cmdpos += MAXLASTCMD - 1;
cmdpos %= MAXLASTCMD;
strlcpy(buf, lastcmd[cmdpos], len+1);
move(y, x); /* clrtoeof */
for (i = 0; i <= clen; i++)
outc(' ');
move(y, x);
edit_outs(buf);
clen = currchar = strlen(buf);
break;
case KEY_LEFT:
if (currchar > 0)
{
--currchar;
#ifdef DBCSAWARE_GETDATA
if(currchar > 0 &&
ISDBCSAWARE() &&
getDBCSstatus(buf, currchar) == DBCS_TRAILING)
currchar --;
#endif
}
break;
case KEY_RIGHT:
if (buf[currchar])
{
++currchar;
#ifdef DBCSAWARE_GETDATA
if(buf[currchar] &&
ISDBCSAWARE() &&
getDBCSstatus(buf, currchar) == DBCS_TRAILING)
currchar++;
#endif
}
break;
case '\177':
case Ctrl('H'):
if (currchar) {
#ifdef DBCSAWARE_GETDATA
int dbcs_off = 1;
if (ISDBCSAWARE() &&
getDBCSstatus(buf, currchar-1) == DBCS_TRAILING)
dbcs_off = 2;
#endif
currchar -= dbcs_off;
clen -= dbcs_off;
for (i = currchar; i <= clen; i++)
buf[i] = buf[i + dbcs_off];
move(y, x + clen);
outc(' ');
#ifdef DBCSAWARE_GETDATA
if(dbcs_off > 1) outc(' ');
#endif
move(y, x);
edit_outs(buf);
}
break;
case Ctrl('Y'):
currchar = 0;
case Ctrl('K'):
/* we shoud be able to avoid DBCS issues in ^K mode */
buf[currchar] = '\0';
move(y, x + currchar);
for (i = currchar; i < clen; i++)
outc(' ');
clen = currchar;
break;
case Ctrl('D'):
case KEY_DEL:
if (buf[currchar]) {
#ifdef DBCSAWARE_GETDATA
int dbcs_off = 1;
if (ISDBCSAWARE() && buf[currchar+1] &&
getDBCSstatus(buf, currchar+1) == DBCS_TRAILING)
dbcs_off = 2;
#endif
clen -= dbcs_off;
for (i = currchar; i <= clen; i++)
buf[i] = buf[i + dbcs_off];
move(y, x + clen);
outc(' ');
#ifdef DBCSAWARE_GETDATA
if(dbcs_off > 1) outc(' ');
#endif
move(y, x);
edit_outs(buf);
}
break;
case Ctrl('A'):
case KEY_HOME:
currchar = 0;
break;
case Ctrl('E'):
case KEY_END:
currchar = clen;
break;
default:
if (isprint2(ch) && clen < len && x + clen < scr_cols) {
#ifdef DBCSAWARE_GETDATA
/* to prevent single byte input */
if(ISDBCSAWARE() &&
clen >= len-1 && ch >= 0x80)
break;
#endif
for (i = clen + 1; i > currchar; i--)
buf[i] = buf[i - 1];
buf[currchar] = ch;
move(y, x + currchar);
edit_outs(buf + currchar);
currchar++;
clen++;
}
break;
} /* end case */
} /* end while */
if (clen > 1) {
strlcpy(lastcmd[0], buf, sizeof(lastcmd[0]));
memmove(lastcmd+1, lastcmd, (MAXLASTCMD-1)*sizeof(lastcmd[0]));
}
outc('\n');
refresh();
}
if ((echo == LCECHO) && isupper((int)buf[0]))
buf[0] = tolower(buf[0]);
return clen;
}
/* Ptt */
int
getdata_buf(int line, int col, const char *prompt, char *buf, int len, int echo)
{
return oldgetdata(line, col, prompt, buf, len, echo);
}
int
getdata_str(int line, int col, const char *prompt, char *buf, int len, int echo, const char *defaultstr)
{
strlcpy(buf, defaultstr, len);
return oldgetdata(line, col, prompt, buf, len, echo);
}
int
getdata(int line, int col, const char *prompt, char *buf, int len, int echo)
{
buf[0] = 0;
return oldgetdata(line, col, prompt, buf, len, echo);
}
/* vim:sw=4
*/
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