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|
/*
* Copyright (c) 2008, Brian Watson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgements:
* This product includes software developed by Adam Dunkels.
* This product includes software developed by Brian Watson.
* 4. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This file is part of the FujiChat IRC client.
*
*/
/* standard C includes */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
/* cc65 includes */
#include <rs232.h>
#include <peekpoke.h>
#include <atari.h>
/* uIP includes */
#include "timer.h"
#include "uip.h"
#include "uiplib.h"
#include "rs232dev.h"
/* FujiChat includes */
#include "fujichat.h"
#include "common.h"
#include "formatip.h"
#include "features.h"
#ifdef FEAT_KEYBOARD_MACROS
#include "keybuf.h"
#endif
#ifdef FEAT_COL80_HACK
/* $54 and $55 are ROWCRS and COLCRS.
COL80 uses them the same way the OS does. */
# define fuji_gotox(x) POKE(0x55, x)
# define fuji_gotoy(y) POKE(0x54, y)
# define fuji_getxpos() PEEK(0x55)
# define fuji_getypos() PEEK(0x54)
/* TODO: calculate from RMARGN-LMARGN. Currently COL80 doesn't set RMARGN */
# ifndef COLUMNS
# define COLUMNS 80
# endif
#endif
#ifdef FEAT_DYNAMIC_VERSION
char os_version[10] = "XL_XE";
#else
#define os_version "8-bit"
#endif
#ifdef FEAT_LOW_RAM_BUFFERS
#define LOW_RAM_BASE 0x2900
char *input_buf = (char *)LOW_RAM_BASE; // $2900 - $21FF
char *serv_msg_buf = (char *)(LOW_RAM_BASE + BUF_SIZE); // $2A00 - $2BFF
char *output_buf = (char *)(LOW_RAM_BASE + BUF_SIZE + BUF_SIZE * 2); // $2C00 - $2DFF
#else
char input_buf[BUF_SIZE];
char serv_msg_buf[BUF_SIZE * 2];
char output_buf[OUTBUF_SIZE];
#endif
char channel[HOSTLEN];
#ifdef FEAT_KEYBOARD_MACROS
char last_msg_nick[NICKLEN+1] = "";
#endif
int serv_msg_buf_len = 0;
int input_buf_len = 0;
int output_buf_len = 0;
char done = 0;
char connected = 0;
char joined_channel = 0; /* true if we're in a channel */
char nick_registered = 0;
#ifdef FEAT_VISUAL_BELL
char vbell_active = 0;
#endif
#ifdef FEAT_ATRACT_AWAY
char away = 0;
#endif
static void handle_keystroke(void);
#ifdef FEAT_LOGGING
static void alloc_log_buffer();
#endif
#if defined(FEAT_CURSOR_CONTROLS) || defined(FEAT_COL80_HACK)
void redraw_user_buffer();
void del_user_buffer();
#endif
/* uIP API stuff */
struct timer nick_reg_timer; /* ../uip/timer.h */
struct telnet_state *tstate; /* ../apps/telnet.h */
#ifdef FEAT_VISUAL_BELL
struct timer vbell_timer;
#endif
/*---------------------------------------------------------------------------*/
void main(void) {
#ifdef FEAT_DYNAMIC_VERSION
char c;
#endif
int i;
uip_ipaddr_t ipaddr;
struct timer periodic_timer;
char cmdbuf[HOSTLEN+1];
disable_break();
#ifdef FEAT_DYNAMIC_VERSION
c = get_ostype() & AT_OS_TYPE_MAIN;
if(c == AT_OS_400800) {
strcpy(os_version, "800");
} else if(c == AT_OS_1200XL) {
strcpy(os_version, "1200XL");
}
#endif
/* set screen colors to white-on-black initially. They may be
reset by the user's config file, once it's loaded */
POKE(710, 0);
POKE(709, 12);
#ifndef FEAT_COL80_HACK
fuji_putchar(A_CLR);
#endif
puts(BANNER);
fuji_putchar('\n');
if(!config_is_valid()) {
if(!get_config())
set_default_config();
}
#ifdef FEAT_LOGGING
alloc_log_buffer();
#endif
// config->ui_flags |= UIFLAG_HIDEMOTD; // TODO: make it a preference!
while(1) {
done = 0;
rs232dev_close();
POKE(710, config->bg_color);
POKE(709, config->fg_color);
printf("Server name/IP, [S]etup, or [D]OS\n");
printf("[%s]: ", config->server);
fflush(stdout);
get_line(cmdbuf, HOSTLEN);
if(strcasecmp(cmdbuf, "d") == 0) {
exit(0);
} else if(strcasecmp(cmdbuf, "s") == 0) {
i = atari_exec(SETUP_FILENAME);
printf("Error %d!\n", i);
bell();
continue;
} else if(*cmdbuf) {
strcpy(config->server, cmdbuf);
}
/* else, use the existing config->server */
if(rs232dev_init(config->baud) != RS_ERR_OK)
continue;
timer_set(&periodic_timer, CLOCK_SECOND / 2);
uip_init();
memcpy(uip_hostaddr, &(config->local_ip), 4);
memcpy(uip_draddr, &(config->peer_ip), 4);
/* can I use 255.255.255.252 here? Does it matter? */
uip_ipaddr(ipaddr, 255,255,255,0);
uip_setnetmask(ipaddr);
if(uiplib_ipaddrconv(config->server, (unsigned char*)&ipaddr)) {
(void)uip_connect(&ipaddr, htons(config->server_port));
} else {
resolv_init();
resolv_conf((u16_t *)&(config->resolver_ip)); // TODO: fix so I don't need extra ()
resolv_query(config->server);
}
while(!done) {
/* This part of the while loop is straight from the no-ARP example
code, from the uIP docs. */
uip_len = rs232dev_poll();
if(uip_len > 0) {
uip_input();
/* If the above function invocation resulted in data that
should be sent out on the network, the global variable
uip_len is set to a value > 0. */
if(uip_len > 0) {
rs232dev_send();
}
} else if(timer_expired(&periodic_timer)) {
timer_reset(&periodic_timer);
for(i = 0; i < UIP_CONNS; i++) {
uip_periodic(i);
/* If the above function invocation resulted in data that
should be sent out on the network, the global variable
uip_len is set to a value > 0. */
if(uip_len > 0) {
rs232dev_send();
}
}
#if UIP_UDP
for(i = 0; i < UIP_UDP_CONNS; i++) {
uip_udp_periodic(i);
/* If the above function invocation resulted in data that
should be sent out on the network, the global variable
uip_len is set to a value > 0. */
if(uip_len > 0) {
rs232dev_send();
}
}
#endif /* UIP_UDP */
}
#ifdef FEAT_VISUAL_BELL
if(vbell_active && timer_expired(&vbell_timer)) {
POKE(710, config->bg_color);
vbell_active = 0;
}
#endif
/* Call the keyboard handler if the user pressed a key. Note that
we're using stdio for printing, but conio for reading, which
works on the Atari but may not work on all other cc65 platforms */
#ifdef FEAT_KEYBOARD_BUFFER
/* always call; will return if nothing to do */
handle_keystroke();
#else
if(PEEK(764) != 0xff) { /* check CH (replaces kbhit()) */
handle_keystroke();
}
#endif
#ifdef FEAT_ATRACT_AWAY
if(away && input_buf_len && !(PEEK(77) & 0x80)) {
away = 0;
send_server_cmd("AWAY", NULL);
} else if(!away && (PEEK(77) & 0x80)) {
away = 1;
send_server_cmd("AWAY", "ATRACT Mode");
}
#endif
/* Automatically register the nick and userhost after being
connected for a couple seconds. The parameters for the USER
command are ignored by the server (at least the NewNet servers) */
if(connected && !nick_registered && timer_expired(&nick_reg_timer)) {
puts("> Registering nick");
serv_msg_buf_len = sprintf(
serv_msg_buf, "NICK %s%cUSER %s %s %s :%s%c",
config->nick, NL, config->nick, SELF,
config->server, config->real_name, NL);
send_serv_msg_buf();
/*
sprintf(input_buf, "NICK %s%cUSER %s %s %s :%s%c",
config->nick, NL, config->nick, SELF,
config->server, config->real_name, NL);
telnet_send(tstate, input_buf, strlen(input_buf));
*/
input_buf_len = 0;
nick_registered = 1;
/* TODO: check for failure registering the nick */
}
/*
if(PEEK(53279) == 6) { // START pressed
puts("Disconnecting");
uip_close();
// done = 1;
}
*/
}
connected = nick_registered = joined_channel = 0;
}
// return 0;
}
void bell() {
if(config->ui_flags & UIFLAG_NOBELL)
return;
#ifdef FEAT_VISUAL_BELL
if(config->ui_flags & UIFLAG_VBELL) {
vbell_active = 1;
timer_set(&vbell_timer, CLOCK_SECOND / 10);
POKE(710, config->bg_color + 8);
return;
}
#endif
#ifndef FEAT_COL80_HACK /* COL80 E: doesn't do the bell character */
fuji_putchar(A_BEL);
#endif
}
static void err_no_channel(void) {
puts("You are not in a channel (use /join #channel)");
bell();
}
#ifdef FEAT_CURSOR_CONTROLS
static void del_last_word(void) {
int old = input_buf_len, bs = 0;
while(input_buf_len && input_buf[input_buf_len] == ' ') {
++bs;
input_buf_len--;
}
while(input_buf_len && input_buf[input_buf_len] != ' ') {
++bs;
input_buf_len--;
}
if(old > 120 && input_buf_len <= 120) {
fuji_putchar(0x1c);
fuji_putchar(A_DEL);
fuji_putchar(A_DEL);
redraw_user_buffer();
} else do {
fuji_putchar(A_BS);
} while(--bs);
}
#endif
#ifdef FEAT_COL80_HACK
void col80_backspace(char destructive) {
char x = fuji_getxpos();
char y = fuji_getypos();
if(x) {
--x;
} else {
x = COLUMNS - 1;
--y;
}
fuji_gotox(x);
fuji_gotoy(y);
if(destructive) {
fuji_putchar(' ');
fuji_gotox(x);
fuji_gotoy(y);
}
}
//void col80_cursor(void) {
// fuji_putchar(0xa0); /* inverse space */
// col80_backspace(0);
//}
# define backspace() col80_backspace(1)
#else
# define backspace() fuji_putchar(A_BS)
#endif
/* Keyboard handler. For now, the keyboard macros are hard-coded. */
static void handle_keystroke(void) {
char i, c, send_buf = 0;
/* TODO:
ctrl-7 = ` (warning: cgetc() can't read this)
ctrl-, = {
ctrl-. = }
ctrl-; = ~ (don't do ctrl-^, that's left-arrow!)
Ignore inverse-video key, ATASCII graphics, unwanted
cursor actions, make caps-lock stop freezing the program.
To do this right, we have to examine location 764 for some
of these, and don't call cgetc() at all... or actually,
stuff a valid keycode there, then call cgetc() to make a
keyclick noise (but ignore its return value).
Addendum - this should be handled in keybuf.s?
Stock col80 key mappings are warped:
ctrl-clear = }
ctrl-; = {
ctrl-. = `
No way to type a tilde because that's the A8 backspace char :(
*/
#ifdef FEAT_KEYBOARD_BUFFER
c = keybuf_cgetc();
if(!c) return;
#else
c = fuji_cgetc();
#endif
#ifdef FEAT_KEYBOARD_MACROS
/* Keyboard macros, only allowed at the start of a new line */
if(input_buf_len == 0) {
switch(c) {
case 0x0e: /* ctrl-N */
if(joined_channel) send_server_cmd("NAMES", channel);
return;
case 0x17: /* ctrl-W */
if(joined_channel) send_server_cmd("WHO", channel);
return;
case A_EOL:
return; /* ignore Return on a line by itself */
case A_TAB:
if(last_msg_nick[0]) {
sprintf(input_buf, "/msg %s ", last_msg_nick);
input_buf_len = strlen(input_buf);
for(i=0; i<input_buf_len; i++)
fuji_putchar(input_buf[i] | 0x80);
}
return;
default:
break;
}
}
#else
if(!input_buf_len && c == A_EOL)
return;
#endif
/* Editing keys */
/* TODO: more editing keys. At minimum:
left/right arrows
^W = delete last word
^U = kill to start of line
^K = kill to end of line
^A = goto start of line
^E = goto end of line
^L = redraw input buffer
*/
if(c == A_BS) { /* backspace */
if(input_buf_len > 0) {
input_buf_len--;
#ifdef FEAT_COL80_HACK
col80_backspace(1);
// fuji_putchar(' ');
// col80_backspace(0);
// col80_cursor();
#else
fuji_putchar(c);
#endif
} else {
bell();
}
return;
} else if(c == A_DEL || c == 0x15) {
/* shift-backspace or ^U (delete line) */
#ifdef FEAT_COL80_HACK
del_user_buffer();
// col80_cursor();
#else
fuji_putchar(A_DEL);
#endif
input_buf_len = 0;
return;
#ifdef FEAT_CURSOR_CONTROLS
} else if(c == 0x17) {
/* ^W (delete word) */
del_last_word();
return;
#endif
}
/* Echo keystroke */
fuji_putchar(c | 0x80); /* inverse video for now */
if(c == A_EOL) {
c = NL;
send_buf = 1;
} else if(c == A_TAB) {
c = TAB;
}
// #ifdef FEAT_COL80_HACK
// else { col80_cursor(); }
// #endif
#ifdef FEAT_UNICODE_TEST
if(c == 0x10) { /* ATASCII clubs symbol */
input_buf[input_buf_len++] = 0xe2; /* UTF-8 marker */
input_buf[input_buf_len++] = 0x99;
input_buf[input_buf_len++] = 0xa3;
fuji_putchar(c);
return;
}
#endif
/* Store keystroke in input buffer */
input_buf[input_buf_len++] = c;
/* If line too long, ring the "margin" bell */
if(input_buf_len > BUF_SIZE - 1)
if(!send_buf) {
bell();
// fuji_putchar(A_BS);
backspace();
input_buf_len--;
}
/* If we've got a complete line of input and user has pressed Return,
send it to the server */
if(send_buf) {
input_buf[input_buf_len] = '\0';
if(*input_buf == '/') {
handle_command();
} else if(joined_channel) {
sprintf(serv_msg_buf, "PRIVMSG %s :%s", channel, input_buf);
telnet_send(tstate, serv_msg_buf, strlen(serv_msg_buf));
} else {
err_no_channel();
}
input_buf_len = 0;
}
}
void send_serv_msg_buf(void) {
telnet_send(tstate, serv_msg_buf, serv_msg_buf_len);
}
void send_server_cmd(char *cmd, char *arg) {
if(arg) {
serv_msg_buf_len = sprintf(serv_msg_buf, "%s :%s%c", cmd, arg, NL);
} else {
serv_msg_buf_len = sprintf(serv_msg_buf, "%s%c", cmd, NL);
}
send_serv_msg_buf();
}
/* 20190313 bkw: for the /msg command and similar. arg contains the
full argument (nick and text). We have to quote the text
with a colon. User enters "/m nick this stuff" and we say
to the server "PRIVMSG nick :this stuff" */
void send_server_cmd_2arg(char *cmd, char *arg) {
char *p;
for(p = arg; *p; p++) {
if(*p == ' ') {
*p = '\0';
serv_msg_buf_len = sprintf(serv_msg_buf, "%s %s :%s%c", cmd, arg, p + 1, NL);
send_serv_msg_buf();
return;
}
}
puts("> Invalid argument");
}
/* The telnet_* functions are uIP application callbacks. */
void telnet_connected(struct telnet_state *s) {
/* puts("Connected to host, press START to disconnect"); */
puts("> Connected to server");
tstate = s;
s->text = NULL;
s->textlen = 0;
timer_set(&nick_reg_timer, CLOCK_SECOND);
connected = 1;
}
/* 20081125 bkw: why don't these pragmas do anything? */
#pragma warn (off)
void telnet_closed(struct telnet_state *s) {
puts("> Connection closed");
uip_close();
done = 1;
}
void telnet_sent(struct telnet_state *s) {
}
void telnet_aborted(struct telnet_state *s) {
puts("> Connection aborted");
uip_abort();
done = 1;
}
void telnet_timedout(struct telnet_state *s) {
puts("> Connection timed out");
uip_abort();
done = 1;
}
#pragma warn (on)
void do_pong() {
char *p = serv_msg_buf;
memcpy(serv_msg_buf, output_buf, output_buf_len);
serv_msg_buf[1] = 'O';
while(*p) {
if(*p == A_EOL) *p = NL;
p++;
}
telnet_send(tstate, serv_msg_buf, output_buf_len);
if(config->ui_flags & UIFLAG_SHOWPING)
puts("[PING,PONG]");
}
void do_server_msg() {
char *cmd = output_buf, *arg;
int numeric = 0, len;
while(*cmd != ' ')
++cmd;
++cmd;
arg = cmd;
while(*arg != ' ')
++arg;
*arg = '\0';
++arg;
len = strlen(config->nick);
if(memcmp(arg, config->nick, len) == 0)
arg += (len + 1); // skip nick if present
if(arg[0] == ':')
++arg;
/* now cmd points to the command (numeric or whatever),
arg points to the rest of the string.
Numeric commands we handle now I guess. I think they
all have the nick as the 1st argument...
*/
if( (numeric = atoi(cmd)) ) {
switch(numeric) {
case 332: // topic
printf("> Topic: %s", arg);
return;
break;
case 333: // topic nick
printf("> Topic set by %s", arg);
return;
break;
case 375: // start of MOTD
case 372: // MOTD text
if(config->ui_flags & UIFLAG_HIDEMOTD) {
if(numeric == 375)
puts("> Hiding MOTD (be patient)");
}
return;
break;
case 376: // end of MOTD
case 422: // or MOTD missing
if(*(config->channel)) {
strcpy(channel, config->channel);
printf("> Joining %s\n", channel);
send_server_cmd("JOIN", channel);
joined_channel = 1;
}
break;
/*
case 352: // /who list
case 353: // /names list
case 366: // end of /names
case 315: // end of /who
break;
*/
default:
break;
}
}
printf("%s %s", cmd, arg);
}
char incoming_ctcp(char *nick, char *msg) {
long now, then;
int sec, dec;
if(memcmp(msg, "PING ", 5) == 0) {
now = clock() * 10L;
then = ((long)(atoi(msg + 5)) +
((long)(atoi(msg + 9)) << 8) +
((long)(atoi(msg + 13)) << 16)) * 10L;
now -= then;
now /= CLOCKS_PER_SEC;
sec = now / 10;
dec = now % 10;
/* silently ignore timestamp wraparound */
/*
if(then >= now)
return 1;
*/
printf("> %s ping time: %d.%d\n", nick, sec, dec);
return 1;
}
return 0;
}
/* Handler for text received from the server, responsible for
formatting. TODO: part/join/quit aren't handled correctly. */
void do_msg() {
char *nick = output_buf, *cmd = output_buf, *chan = NULL, *msg = NULL;
char *bang = NULL;
while(*cmd != ' ') {
if(*cmd == '!') {
bang = cmd;
}
++cmd;
}
/* no ! in nick means a server message */
if(!bang) {
do_server_msg();
return;
}
*cmd = '\0';
++cmd;
chan = cmd;
while(*chan != ' ')
++chan;
*chan = '\0';
++chan;
msg = chan;
if(*msg != A_EOL) {
while(*msg && *msg != ' ')
++msg;
if(*msg) {
*msg = '\0';
++msg;
if(*msg == ':') ++msg;
}
}
/* FIXME: This stuff is hairy, unmaintainable, and probably just wrong
(works OK with the 2 or 3 NewNet servers I test with, not tried
others). It's the result of too much coffee, and needs to be
redesigned. Heck, it needs to be designed in the first place! */
if(strcmp(cmd, "PRIVMSG") == 0) {
nick[0] = '<';
bang[0] = '>';
bang[1] = '\0';
if(strcasecmp(chan, config->nick) != 0) {
// privmsg, not to our nick, must be channel text
if(memcmp(msg, "\x01" "ACTION ", 8) == 0) {
nick++;
*bang = '\0';
output_buf[output_buf_len - 2] = A_EOL;
output_buf[output_buf_len - 1] = '\0';
printf("* %s %s", nick, msg + 8);
} else {
printf("%s %s", nick, msg);
}
} else {
// privmsg, is to our nick
if(memcmp(msg, "\x01" "PING ", 6) == 0) {
nick++;
bang[0] = '\0';
output_buf[output_buf_len - 2] = '\0';
serv_msg_buf_len = sprintf(serv_msg_buf, "NOTICE %s :\x01PING %s\x01%c",
nick, msg + 6, 0x0a);
send_serv_msg_buf();
printf("* CTCP PING from %s\n", nick);
} else if(memcmp(msg, "\x01" "VERSION\x01", 9) == 0) {
nick++;
*bang = '\0';
serv_msg_buf_len = sprintf(serv_msg_buf, "NOTICE %s :\x01VERSION "
VERSION_REPLY " - running on "
"an Atari %s\x01%c",
nick, os_version, 0x0a);
send_serv_msg_buf();
printf("* CTCP VERSION from %s\n", nick);
} else {
printf("-> %s %s", nick, msg);
if(config->ui_flags & UIFLAG_MSGBELL)
bell();
bang[0] = '\0';
#ifdef FEAT_KEYBOARD_MACROS
strcpy(last_msg_nick, nick + 1);
#endif
}
}
} else if((strcmp(cmd, "NOTICE") == 0) && msg[0] == '\x01') {
nick++;
*bang = '\0';
if(!incoming_ctcp(nick, msg+1))
printf("* CTCP reply from %s: %s", nick, msg+1); // still has A_EOL
} else {
if(*msg) {
printf("%s %s %s %s", nick, cmd, chan, msg);
} else {
printf("%s %s %s", nick, cmd, chan);
}
}
fflush(stdout);
}
#ifdef FEAT_CURSOR_CONTROLS
void del_user_buffer() {
/* delete user edit buffer */
if(input_buf_len) {
fuji_putchar(A_DEL);
if(input_buf_len > 119) {
fuji_putchar(0x1c); /* up arrow */
fuji_putchar(A_DEL);
}
}
}
#elif defined(FEAT_COL80_HACK)
/* COL80 doesn't support the delete-line or arrow key
control codes.
Deleting and redrawing the user buffer is done by:
1. Move the cursor to the start of the buffer on screen
2. Print input_buf_len spaces
3. Move cursor to the same spot as (1)
4. Print the incoming text including EOL as usual
5. redraw_user_buffer() as usual
*/
void del_user_buffer() {
int tlen;
char oldy;
if(!input_buf_len)
return;
tlen = input_buf_len;
oldy = fuji_getypos() - (input_buf_len / COLUMNS);
fuji_gotox(0);
fuji_gotoy(oldy);
do {
fuji_putchar(' ');
} while(--tlen);
fuji_gotox(0);
fuji_gotoy(oldy);
}
#endif
#if defined(FEAT_CURSOR_CONTROLS) || defined(FEAT_COL80_HACK)
//void redraw_user_buffer() {
// int tlen;
//# ifdef FEAT_LOW_RAM_BUFFERS
//# define redraw_buf ((char *) 0x2800)
//# else
// static char redraw_buf[BUF_SIZE];
//# endif
// /* reprint user edit buffer */
// if(input_buf_len) {
// tlen = input_buf_len - 1;
// do {
// redraw_buf[tlen] = input_buf[tlen] | 0x80;
// } while(tlen--);
// redraw_buf[input_buf_len] = '\0';
// fputs(redraw_buf, stdout);
// fflush(stdout);
// }
//}
void redraw_user_buffer() {
int i;
if(input_buf_len) {
for(i=0; i<input_buf_len; ++i)
fuji_putchar(input_buf[i] | 0x80);
}
}
#endif
/* Another uIP app callback. This decides whether or not we've received
a complete message from the server (which may be split into multiple
packets, and may end in the middle of a packet) */
void telnet_newdata(struct telnet_state *s, char *data, u16_t len) {
u16_t tlen = len;
char c, *t = data, buf_done = 0;
while(tlen-- != 0) {
c = *t++;
if(c == NL) { // swallow NL
continue;
} else if(c == CR) { // CR => EOL
c = A_EOL;
buf_done = 1;
} else if(c == TAB) { // tab
c = A_TAB;
#ifndef FEAT_COL80_HACK
/* COL80 can actually print these OK */
} else if(c == '{') {
c = '[' | 0x80;
} else if(c == '}') {
c = ']' | 0x80;
} else if(c == '~') {
c = '^' | 0x80;
} else if(c == 0x60) { // backtick
c = 0xa7; // inverse quote
#endif
}
output_buf[output_buf_len++] = c;
if(output_buf_len >= OUTBUF_SIZE) {
puts("[buffer overflow]\xfd");
buf_done = 1;
break;
}
if(buf_done) {
#if defined(FEAT_CURSOR_CONTROLS) || defined(FEAT_COL80_HACK)
del_user_buffer();
#endif
output_buf[output_buf_len] = '\0';
if(output_buf_len > 4 && (memcmp(output_buf, "PING", 4) == 0)) {
do_pong();
} else if(output_buf[0] == ':') {
do_msg();
} else {
fputs(output_buf, stdout);
fflush(stdout);
}
#if defined(FEAT_CURSOR_CONTROLS) || defined(FEAT_COL80_HACK)
redraw_user_buffer();
#endif
#ifdef FEAT_COL80_HACK
// col80_cursor();
#endif
output_buf_len = 0;
buf_done = 0;
}
}
}
/*---------------------------------------------------------------------------*/
/* uIP app callback for the resolver */
void resolv_found(char *name, u16_t *ipaddr) {
if(ipaddr == NULL) {
printf("Host '%s' not found.\n", name);
done = 1;
} else {
printf("%s is %s\n", name, format_ip((uip_ipaddr_t *)ipaddr));
/*
printf("Found name '%s' = %d.%d.%d.%d\n", name,
htons(ipaddr[0]) >> 8,
htons(ipaddr[0]) & 0xff,
htons(ipaddr[1]) >> 8,
htons(ipaddr[1]) & 0xff);
*/
if(!connected)
(void)uip_connect((uip_ipaddr_t *)ipaddr, htons(config->server_port));
}
}
#ifdef FEAT_LOGGING
/* 0x100 * 32 = 8K (but we likely won't get that much) */
#define LOG_PAGE_SIZE 0x200
#define LOG_MAX_PAGES 16
#define LOG_SCROLL_PAGES 2
static char *log_buffer = NULL;
static char *log_buf_end = NULL;
static char *log_buf_current = NULL;
static int log_pages = LOG_MAX_PAGES;
static char last_log_nick[NICKLEN + 1];
static void alloc_log_buffer() {
do {
printf("Trying to malloc(%x)...", LOG_PAGE_SIZE * log_pages);
log_buffer = malloc(LOG_PAGE_SIZE * log_pages);
if(log_buffer) {
puts("OK");
} else {
puts("Failed");
}
} while(!log_buffer && (--log_pages > LOG_SCROLL_PAGES * 2));
if(!log_buffer) return;
log_buf_end = (char *)(log_pages * LOG_PAGE_SIZE - 1);
log_buf_current = log_buffer;
printf("log_buffer == %x (%x)", log_buffer, log_pages * LOG_PAGE_SIZE);
fuji_cgetc();
}
static void log_msg(char *msg) {
int len = strlen(msg);
if( (log_buf_current + len + 1) > log_buf_end ) {
memmove(log_buffer, log_buffer + (LOG_SCROLL_PAGES * LOG_PAGE_SIZE), (log_pages - LOG_SCROLL_PAGES) * LOG_PAGE_SIZE);
log_buf_current -= (LOG_SCROLL_PAGES * LOG_PAGE_SIZE);
}
}
#endif
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