term.c

/* Copyright (C), 2007 by Stephen Hurd */

/* $Id$ */

#include <genwrap.h>
#include <ciolib.h>
#include <cterm.h>
#include <mouse.h>
#include <keys.h>

#include "threadwrap.h"
#include "filewrap.h"

#include "conn.h"
#include "syncterm.h"
#include "term.h"
#include "uifcinit.h"
#include "filepick.h"
#include "menu.h"
#include "dirwrap.h"
#include "sexyz.h"
#include "zmodem.h"
#include "xmodem.h"
#include "telnet_io.h"
#ifdef WITH_WXWIDGETS
#include "htmlwin.h"
#endif

#ifdef GUTS_BUILTIN
#include "gutsz.h"
#endif

#ifndef WITHOUT_OOII
#include "ooii.h"
#endif

#define	ANSI_REPLY_BUFSIZE	2048

#define DUMP

struct terminal term;

#define TRANSFER_WIN_WIDTH	66
#define TRANSFER_WIN_HEIGHT	18
static char winbuf[(TRANSFER_WIN_WIDTH + 2) * (TRANSFER_WIN_HEIGHT + 1) * 2];	/* Save buffer for transfer window */
static struct text_info	trans_ti;
static struct text_info	log_ti;
#ifdef WITH_WXWIDGETS
enum html_mode {
	 HTML_MODE_HIDDEN
	,HTML_MODE_ICONIZED
	,HTML_MODE_RAISED
	,HTML_MODE_READING
};
static enum html_mode html_mode=HTML_MODE_HIDDEN;
enum {
	 HTML_SUPPORT_UNKNOWN
	,HTML_NOTSUPPORTED
	,HTML_SUPPORTED
};

static int html_supported=HTML_SUPPORT_UNKNOWN;

char *html_addr=NULL;
#endif

#if defined(__BORLANDC__)
	#pragma argsused
#endif
void mousedrag(unsigned char *scrollback)
{
	int	key;
	struct mouse_event mevent;
	unsigned char *screen;
	unsigned char *sbuffer;
	int sbufsize;
	int pos, startpos,endpos, lines;
	int outpos;
	char *copybuf;
	int lastchar;

	sbufsize=term.width*2*term.height;
	screen=(unsigned char*)alloca(sbufsize);
	sbuffer=(unsigned char*)alloca(sbufsize);
	gettext(term.x-1,term.y-1,term.x+term.width-2,term.y+term.height-2,screen);
	while(1) {
		key=getch();
		if(key==0 || key==0xff)
			key|=getch()<<8;
		switch(key) {
			case CIO_KEY_MOUSE:
				getmouse(&mevent);
				startpos=((mevent.starty-1)*term.width)+(mevent.startx-1);
				endpos=((mevent.endy-1)*term.width)+(mevent.endx-1);
				if(startpos>=term.width*term.height)
					startpos=term.width*term.height-1;
				if(endpos>=term.width*term.height)
					endpos=term.width*term.height-1;
				if(endpos<startpos) {
					pos=endpos;
					endpos=startpos;
					startpos=pos;
				}
				switch(mevent.event) {
					case CIOLIB_BUTTON_1_DRAG_MOVE:
						memcpy(sbuffer,screen,sbufsize);
						for(pos=startpos;pos<=endpos;pos++) {
							if((sbuffer[pos*2+1]&0x70)!=0x10)
								sbuffer[pos*2+1]=(sbuffer[pos*2+1]&0x8F)|0x10;
							else
								sbuffer[pos*2+1]=(sbuffer[pos*2+1]&0x8F)|0x60;
							if(((sbuffer[pos*2+1]&0x70)>>4) == (sbuffer[pos*2+1]&0x0F)) {
								sbuffer[pos*2+1]|=0x08;
							}
						}
						puttext(term.x-1,term.y-1,term.x+term.width-2,term.y+term.height-2,sbuffer);
						break;
					default:
						lines=abs(mevent.endy-mevent.starty)+1;
						copybuf=alloca(endpos-startpos+4+lines*2);
						outpos=0;
						lastchar=0;
						for(pos=startpos;pos<=endpos;pos++) {
							copybuf[outpos++]=screen[pos*2];
							if(screen[pos*2]!=' ' && screen[pos*2])
								lastchar=outpos;
							if((pos+1)%term.width==0) {
								outpos=lastchar;
								#ifdef _WIN32
									copybuf[outpos++]='\r';
								#endif
								copybuf[outpos++]='\n';
								lastchar=outpos;
							}
						}
						copybuf[outpos]=0;
						copytext(copybuf, strlen(copybuf));
						puttext(term.x-1,term.y-1,term.x+term.width-2,term.y+term.height-2,screen);
						return;
				}
				break;
			default:
				puttext(term.x-1,term.y-1,term.x+term.width-2,term.y+term.height-2,screen);
				ungetch(key);
				return;
		}
	}
}

void update_status(struct bbslist *bbs, int speed, BOOL ooii_mode)
{
	char nbuf[LIST_NAME_MAX+10+11+1];	/* Room for "Name (Logging) (115300)" and terminator */
						/* SAFE and Logging should me be possible. */
	int oldscroll;
	int olddmc=hold_update;
	struct	text_info txtinfo;
	int now;
	static int lastupd=0;
	static int oldspeed=0;
	int	timeon;

	now=time(NULL);
	if(now==lastupd && speed==oldspeed)
		return;
	lastupd=now;
	oldspeed=speed;
	timeon=now - bbs->connected;
    gettextinfo(&txtinfo);
	oldscroll=_wscroll;
	hold_update=TRUE;
	textattr(YELLOW|(BLUE<<4));
	/* Move to status line thinger */
	window(term.x-1,term.y+term.height-1,term.x+term.width-2,term.y+term.height-1);
	gotoxy(1,1);
	_wscroll=0;
	strcpy(nbuf, bbs->name);
	if(safe_mode)
		strcat(nbuf, " (SAFE)");
	if(cterm.log)
		strcat(nbuf, " (Logging)");
	if(speed)
		sprintf(strchr(nbuf,0)," (%d)", speed);
	if(cterm.doorway_mode)
		strcat(nbuf, " (DrWy)");
	if(ooii_mode)
		strcat(nbuf, " (OO][)");
	switch(cio_api.mode) {
		case CIOLIB_MODE_CURSES:
		case CIOLIB_MODE_CURSES_IBM:
		case CIOLIB_MODE_ANSI:
			if(timeon>359999)
				cprintf(" %-29.29s \263 %-6.6s \263 Connected: Too Long \263 CTRL-S for menu ",nbuf,conn_types[bbs->conn_type]);
			else
				cprintf(" %-29.29s \263 %-6.6s \263 Connected: %02d:%02d:%02d \263 CTRL-S for menu ",nbuf,conn_types[bbs->conn_type],timeon/3600,(timeon/60)%60,timeon%60);
			break;
		default:
			if(timeon>359999)
				cprintf(" %-30.30s \263 %-6.6s \263 Connected: Too Long \263 ALT-Z for menu ",nbuf,conn_types[bbs->conn_type]);
			else
				cprintf(" %-30.30s \263 %-6.6s \263 Connected: %02d:%02d:%02d \263 ALT-Z for menu ",nbuf,conn_types[bbs->conn_type],timeon/3600,(timeon/60)%60,timeon%60);
			break; /*    1+29     +3    +6    +3    +11        +3+3+2        +3    +6    +4  +5 */
	}
	if(wherex()>=80)
		clreol();
	_wscroll=oldscroll;
	textattr(txtinfo.attribute);
	window(txtinfo.winleft,txtinfo.wintop,txtinfo.winright,txtinfo.winbottom);
	gotoxy(txtinfo.curx,txtinfo.cury);
	hold_update=olddmc;
}

#if defined(_WIN32) && defined(_DEBUG) && defined(DUMP)
void dump(BYTE* buf, int len)
{
	char str[128];
	int i,j;
	size_t slen=0;

	slen=sprintf(str,"RX: ");
	for(i=0;i<len;i+=j) {
		for(j=0;i+j<len && j<32;j++)
			slen+=sprintf(str+slen,"%02X ",buf[i+j]);
		OutputDebugString(str);
		slen=sprintf(str,"RX: ");
	}
}
#endif

/* Zmodem Stuff */
int log_level = LOG_INFO;

struct zmodem_cbdata {
	zmodem_t		*zm;
	struct bbslist	*bbs;
};

enum { ZMODEM_MODE_SEND, ZMODEM_MODE_RECV } zmodem_mode;

static BOOL zmodem_check_abort(void* vp)
{
	struct zmodem_cbdata	*zcb=(struct zmodem_cbdata *)vp;
	zmodem_t*				zm=zcb->zm;

	if(zm!=NULL && kbhit()) {
		switch(getch()) {
			case ESC:
			case CTRL_C:
			case CTRL_X:
				zm->cancelled=TRUE;
				zm->local_abort=TRUE;
				break;
		}
	}
	return(zm->cancelled);
}

extern FILE* log_fp;
extern char *log_levels[];

#if defined(__BORLANDC__)
	#pragma argsused
#endif
static int lputs(void* cbdata, int level, const char* str)
{
	char msg[512];
	int chars;

#if defined(_WIN32) && defined(_DEBUG) && FALSE
	sprintf(msg,"SyncTerm: %s\n",str);
	OutputDebugString(msg);
#endif

	if(log_fp!=NULL && level <= log_level)
		fprintf(log_fp,"Xfer %s: %s\n",log_levels[level], str);

	if(level > LOG_INFO)
		return 0;

	/* Assumes the receive window has been drawn! */
	window(log_ti.winleft, log_ti.wintop, log_ti.winright, log_ti.winbottom);
	gotoxy(log_ti.curx, log_ti.cury);
	textbackground(BLUE);
	switch(level) {
		case LOG_DEBUG:
			textcolor(LIGHTCYAN);
			SAFEPRINTF(msg,"%s\r\n",str);
			break;
		case LOG_INFO:
			textcolor(WHITE);
			SAFEPRINTF(msg,"%s\r\n",str);
			break;
		case LOG_NOTICE:
			textcolor(YELLOW);
			SAFEPRINTF(msg,"%s\r\n",str);
			break;
		case LOG_WARNING:
			textcolor(LIGHTMAGENTA);
			SAFEPRINTF(msg,"Warning: %s\r\n",str);
			break;
		default:
			textcolor(LIGHTRED);
			SAFEPRINTF(msg,"!ERROR: %s\r\n",str);
			break;
	}
	chars=cputs(msg);
	gettextinfo(&log_ti);

	return chars;
}

static int lprintf(int level, const char *fmt, ...)
{
	char sbuf[1024];
	va_list argptr;

    va_start(argptr,fmt);
    vsnprintf(sbuf,sizeof(sbuf),fmt,argptr);
	sbuf[sizeof(sbuf)-1]=0;
    va_end(argptr);
    return(lputs(NULL,level,sbuf));
}

#if defined(__BORLANDC__)
	#pragma argsused
#endif
void zmodem_progress(void* cbdata, uint32_t current_pos)
{
	char		orig[128];
	unsigned	cps;
	time_t		l;
	time_t		t;
	time_t		now;
	static time_t last_progress;
	int			old_hold=hold_update;
	struct zmodem_cbdata *zcb=(struct zmodem_cbdata *)cbdata;
	zmodem_t*	zm=zcb->zm;

	zmodem_check_abort(cbdata);

	now=time(NULL);
	if(now-last_progress>0 || current_pos >= zm->current_file_size) {
		hold_update = TRUE;
		window(((trans_ti.screenwidth-TRANSFER_WIN_WIDTH)/2)+2
				, ((trans_ti.screenheight-TRANSFER_WIN_HEIGHT)/2)+1
				, ((trans_ti.screenwidth-TRANSFER_WIN_WIDTH)/2) + TRANSFER_WIN_WIDTH - 2
				, ((trans_ti.screenheight-TRANSFER_WIN_HEIGHT)/2)+5);
		gotoxy(1,1);
		textattr(LIGHTCYAN | (BLUE<<4));
		t=now-zm->transfer_start_time;
		if(t<=0)
			t=1;
		if(zm->transfer_start_pos>current_pos)
			zm->transfer_start_pos=0;
		if((cps=(current_pos-zm->transfer_start_pos)/t)==0)
			cps=1;		/* cps so far */
		l=zm->current_file_size/cps;	/* total transfer est time */
		l-=t;			/* now, it's est time left */
		if(l<0) l=0;
		cprintf("File (%u of %u): %-.*s"
			,zm->current_file_num, zm->total_files, TRANSFER_WIN_WIDTH - 20, zm->current_file_name);
		clreol();
		cputs("\r\n");
		if(zm->transfer_start_pos)
			sprintf(orig,"From: %lu  ", zm->transfer_start_pos);
		else
			orig[0]=0;
		cprintf("%sByte: %lu of %lu (%lu KB)"
			,orig, current_pos, zm->current_file_size, zm->current_file_size/1024);
		clreol();
		cputs("\r\n");
		cprintf("Time: %lu:%02lu  ETA: %lu:%02lu  Block: %u/CRC-%u  %u cps"
			,t/60L
			,t%60L
			,l/60L
			,l%60L
			,zm->block_size
			,zmodem_mode==ZMODEM_MODE_RECV ? (zm->receive_32bit_data ? 32:16) : 
				(zm->can_fcs_32 && !zm->want_fcs_16) ? 32:16
			,cps
			);
		clreol();
		cputs("\r\n");
		cprintf("%*s%3d%%\r\n", TRANSFER_WIN_WIDTH/2-5, ""
			,(long)(((float)current_pos/(float)zm->current_file_size)*100.0));
		l = (long)(60*((float)current_pos/(float)zm->current_file_size));
		cprintf("[%*.*s%*s]", l, l, 
				"\xb1\xb1\xb1\xb1\xb1\xb1\xb1\xb1\xb1\xb1"
				"\xb1\xb1\xb1\xb1\xb1\xb1\xb1\xb1\xb1\xb1"
				"\xb1\xb1\xb1\xb1\xb1\xb1\xb1\xb1\xb1\xb1"
				"\xb1\xb1\xb1\xb1\xb1\xb1\xb1\xb1\xb1\xb1"
				"\xb1\xb1\xb1\xb1\xb1\xb1\xb1\xb1\xb1\xb1"
				"\xb1\xb1\xb1\xb1\xb1\xb1\xb1\xb1\xb1\xb1"
				, 60-l, "");
		last_progress=now;
		hold_update = FALSE;
		gotoxy(wherex(), wherey());
		hold_update = old_hold;
	}
}

#if defined(__BORLANDC__)
	#pragma argsused
#endif
static int send_byte(void* unused, uchar ch, unsigned timeout /* seconds */)
{
	return(conn_send(&ch,sizeof(ch),timeout*1000)!=1);
}

#if defined(__BORLANDC__)
	#pragma argsused
#endif
static int recv_byte(void* unused, unsigned timeout /* seconds */)
{
	BYTE	ch;

	if(conn_recv(&ch, sizeof(ch), timeout*1000))
		return(ch);
	return(-1);
}

#if defined(__BORLANDC__)
	#pragma argsused
#endif
BOOL data_waiting(void* unused, unsigned timeout)
{
	return(conn_data_waiting()!=0);
}

void draw_transfer_window(char* title)
{
	char	outline[TRANSFER_WIN_WIDTH*2];
	char	shadow[TRANSFER_WIN_WIDTH*2];	/* Assumes that width*2 > height * 2 */
	int		i, top, left, old_hold;

	old_hold = hold_update;
	hold_update=TRUE;
	gettextinfo(&trans_ti);
	top=(trans_ti.screenheight-TRANSFER_WIN_HEIGHT)/2;
	left=(trans_ti.screenwidth-TRANSFER_WIN_WIDTH)/2;
	gettext(left, top, left + TRANSFER_WIN_WIDTH + 1, top + TRANSFER_WIN_HEIGHT, winbuf);
	memset(outline, YELLOW | (BLUE<<4), sizeof(outline));
	for(i=2;i < sizeof(outline) - 2; i+=2) {
		outline[i] = (char)0xcd;	/* Double horizontal line */
	}
	outline[0]=(char)0xc9;
	outline[sizeof(outline)-2]=(char)0xbb;
	puttext(left, top, left + TRANSFER_WIN_WIDTH - 1, top, outline);\

	/* Title */
	gotoxy(left+4,top);
	textattr(YELLOW|(BLUE<<4));
	cprintf("\xb5 %*s \xc6",strlen(title),"");
	gotoxy(left+6,top);
	textattr(WHITE|(BLUE<<4));
	cprintf("%s",title);

	for(i=2;i < sizeof(outline) - 2; i+=2) {
		outline[i] = (char)0xc4;	/* Single horizontal line */
	}
	outline[0] = (char)0xc7;	/* 0xcc */
	outline[sizeof(outline)-2]=(char)0xb6;	/* 0xb6 */
	puttext(left, top+6, left + TRANSFER_WIN_WIDTH - 1, top+6, outline);

	for(i=2;i < sizeof(outline) - 2; i+=2) {
		outline[i] = (char)0xcd;	/* Double horizontal line */
	}
	outline[0]=(char)0xc8;
	outline[sizeof(outline)-2]=(char)0xbc;
	puttext(left, top + TRANSFER_WIN_HEIGHT - 1, left+TRANSFER_WIN_WIDTH - 1, top + TRANSFER_WIN_HEIGHT - 1, outline);
	outline[0]=(char)0xba;
	outline[sizeof(outline)-2]=(char)0xba;
	for(i=2;i < sizeof(outline) - 2; i+=2) {
		outline[i] = ' ';
	}
	for(i=1; i<6; i++) {
		puttext(left, top + i, left + TRANSFER_WIN_WIDTH - 1, top+i, outline);
	}
/*	for(i=3;i < sizeof(outline) - 2; i+=2) { */
/*		outline[i] = LIGHTGRAY | (BLACK << 8); */
/*	} */
	for(i=7; i<TRANSFER_WIN_HEIGHT-1; i++) {
		puttext(left, top + i, left + TRANSFER_WIN_WIDTH - 1, top+i, outline);
	}

	/* Title */
	gotoxy(left + TRANSFER_WIN_WIDTH - 20, top + i);
	textattr(YELLOW|(BLUE<<4));
	cprintf("\xb5              \xc6");
	textattr(WHITE|(BLUE<<4));
	gotoxy(left + TRANSFER_WIN_WIDTH - 18, top + i);
	cprintf("ESC to Abort");

	/* Shadow */
	if(uifc.bclr==BLUE) {
		gettext(left + TRANSFER_WIN_WIDTH
				, top+1
				, left + TRANSFER_WIN_WIDTH + 1
				, top + (TRANSFER_WIN_HEIGHT - 1)
				, shadow);
		for(i=1;i<sizeof(shadow);i+=2)
			shadow[i]=DARKGRAY;
		puttext(left + TRANSFER_WIN_WIDTH
				, top+1
				, left + TRANSFER_WIN_WIDTH + 1
				, top + (TRANSFER_WIN_HEIGHT - 1)
				, shadow);
		gettext(left + 2
				, top + TRANSFER_WIN_HEIGHT
				, left + TRANSFER_WIN_WIDTH + 1
				, top + TRANSFER_WIN_HEIGHT
				, shadow);
		for(i=1;i<sizeof(shadow);i+=2)
			shadow[i]=DARKGRAY;
		puttext(left + 2
				, top + TRANSFER_WIN_HEIGHT
				, left + TRANSFER_WIN_WIDTH + 1
				, top + TRANSFER_WIN_HEIGHT
				, shadow);
	}

	window(left+2, top + 7, left + TRANSFER_WIN_WIDTH - 3, top + TRANSFER_WIN_HEIGHT - 2);
	hold_update = FALSE;
	gotoxy(1,1);
	hold_update = old_hold;
	gettextinfo(&log_ti);
	_setcursortype(_NOCURSOR);
}

void erase_transfer_window(void) {
	puttext(
		  ((trans_ti.screenwidth-TRANSFER_WIN_WIDTH)/2)
		, ((trans_ti.screenheight-TRANSFER_WIN_HEIGHT)/2)
		, ((trans_ti.screenwidth-TRANSFER_WIN_WIDTH)/2) + TRANSFER_WIN_WIDTH + 1
		, ((trans_ti.screenheight-TRANSFER_WIN_HEIGHT)/2) + TRANSFER_WIN_HEIGHT
		, winbuf);
	window(trans_ti.winleft, trans_ti.wintop, trans_ti.winright, trans_ti.winbottom);
	gotoxy(trans_ti.curx, trans_ti.cury);
	textattr(trans_ti.attribute);
	_setcursortype(_NORMALCURSOR);
}

void ascii_upload(FILE *fp);
#define XMODEM_128B		(1<<10)	/* Use 128 byte block size (ick!) */
void zmodem_upload(struct bbslist *bbs, FILE *fp, char *path);
void xmodem_upload(struct bbslist *bbs, FILE *fp, char *path, long mode, int lastch);
void xmodem_download(struct bbslist *bbs, long mode, char *path);
void zmodem_download(struct bbslist *bbs);

void begin_upload(struct bbslist *bbs, BOOL autozm, int lastch)
{
	char	str[MAX_PATH*2+1];
	char	path[MAX_PATH+1];
	int		result;
	int i;
	FILE*	fp;
	struct file_pick fpick;
	char	*opts[5]={
			 "ZMODEM"
			,"YMODEM"
			,"XMODEM"
			,"ASCII"
			,""
		};
	struct	text_info txtinfo;
	char	*buf;

    gettextinfo(&txtinfo);
	buf=(char *)alloca(txtinfo.screenheight*txtinfo.screenwidth*2);
	gettext(1,1,txtinfo.screenwidth,txtinfo.screenheight,buf);

	if(safe_mode)
		return;

	init_uifc(FALSE, FALSE);
	result=filepick(&uifc, "Upload", &fpick, bbs->uldir, NULL, UIFC_FP_ALLOWENTRY);
	
	if(result==-1 || fpick.files<1) {
		filepick_free(&fpick);
		uifcbail();
		puttext(1,1,txtinfo.screenwidth,txtinfo.screenheight,buf);
		gotoxy(txtinfo.curx, txtinfo.cury);
		return;
	}
	SAFECOPY(path,fpick.selected[0]);
	filepick_free(&fpick);
	puttext(1,1,txtinfo.screenwidth,txtinfo.screenheight,buf);

	if((fp=fopen(path,"rb"))==NULL) {
		SAFEPRINTF2(str,"Error %d opening %s for read",errno,path);
		uifcmsg("ERROR",str);
		uifcbail();
		puttext(1,1,txtinfo.screenwidth,txtinfo.screenheight,buf);
		gotoxy(txtinfo.curx, txtinfo.cury);
		return;
	}
	setvbuf(fp,NULL,_IOFBF,0x10000);

	if(autozm) 
		zmodem_upload(bbs, fp, path);
	else {
		i=0;
		uifc.helpbuf="Select Protocol";
		switch(uifc.list(WIN_MID|WIN_SAV,0,0,0,&i,NULL,"Protocol",opts)) {
			case 0:
				zmodem_upload(bbs, fp, path);
				break;
			case 1:
				xmodem_upload(bbs, fp, path, YMODEM|SEND, lastch);
				break;
			case 2:
				xmodem_upload(bbs, fp, path, XMODEM|SEND, lastch);
				break;
			case 3:
				ascii_upload(fp);
				break;
		}
	}
	uifcbail();
	puttext(1,1,txtinfo.screenwidth,txtinfo.screenheight,buf);
	gotoxy(txtinfo.curx, txtinfo.cury);
}

void begin_download(struct bbslist *bbs)
{
	char	path[MAX_PATH+1];
	int i;
	char	*opts[5]={
			 "ZMODEM"
			,"YMODEM-g"
			,"YMODEM"
			,"XMODEM"
			,""
		};
	struct	text_info txtinfo;
	char	*buf;
	int old_hold=hold_update;

	if(safe_mode)
		return;

    gettextinfo(&txtinfo);
	buf=(char *)alloca(txtinfo.screenheight*txtinfo.screenwidth*2);
	gettext(1,1,txtinfo.screenwidth,txtinfo.screenheight,buf);

	init_uifc(FALSE, FALSE);

	i=0;
	uifc.helpbuf="Select Protocol";
	hold_update=FALSE;
	switch(uifc.list(WIN_MID|WIN_SAV,0,0,0,&i,NULL,"Protocol",opts)) {
		case 0:
			zmodem_download(bbs);
			break;
		case 1:
			xmodem_download(bbs, YMODEM|CRC|GMODE|RECV, NULL);
			break;
		case 2:
			xmodem_download(bbs, YMODEM|CRC|RECV, NULL);
			break;
		case 3:
			if(uifc.input(WIN_MID|WIN_SAV,0,0,"Filename",path,sizeof(path),0)!=-1)
				xmodem_download(bbs, XMODEM|CRC|RECV,path);
			break;
	}
	hold_update=old_hold;
	uifcbail();
	puttext(1,1,txtinfo.screenwidth,txtinfo.screenheight,buf);
	gotoxy(txtinfo.curx, txtinfo.cury);
}

#if defined(__BORLANDC__)
	#pragma argsused
#endif
static BOOL is_connected(void* unused)
{
	return(conn_connected());
}

#ifdef GUTS_BUILTIN
static int guts_lputs(void* cbdata, int level, const char* str)
{
	struct GUTS_info *gi=cbdata;
	/* ToDo: Do something usefull here. */
	/* fprintf(stderr,"%s\n",str); */
	return(0);
}

void guts_zmodem_progress(void* cbdata, ulong current_pos)
{
	struct GUTS_info *gi=cbdata;
	/* ToDo: Do something usefull here. */
	return;
}

static int guts_send_byte(void* cbdata, uchar ch, unsigned timeout)
{
	int	i;
	struct GUTS_info *gi=cbdata;

	if(!socket_check(gi->oob_socket, NULL, &i, timeout*1000))
		return(-1);

	if(!i)
		return(-1);

	if(send(gi->oob_socket,&ch,1,0)==-1)
		return(-1);

	return(0);
}

static int guts_recv_byte(void* cbdata, unsigned timeout)
{
	BOOL	data_waiting;
	BYTE	ch;
	struct GUTS_info *gi=cbdata;

	if(!socket_check(gi->oob_socket, &data_waiting, NULL, timeout*1000))
		return(-1);

	if(!data_waiting)
		return(-1);

	if(recv(gi->oob_socket,&ch,1,0)!=1)
		return(-1);

	return(ch);
}

static BOOL guts_is_connected(void* cbdata)
{
	struct GUTS_info *gi=cbdata;
	return socket_check(gi->oob_socket,NULL,NULL,0);
}

BOOL guts_data_waiting(void* cbdata, unsigned timeout)
{
	BOOL rd;
	struct GUTS_info *gi=cbdata;

	if(!socket_check(gi->oob_socket,&rd,NULL,timeout*1000))
		return(FALSE);
	return(rd);
}

void guts_background_download(void *cbdata)
{
	struct GUTS_info gi=*(struct GUTS_info *)cbdata;

	zmodem_t	zm;
	ulong		bytes_received;

	zmodem_mode=ZMODEM_MODE_RECV;

	zmodem_init(&zm
		,&gi
		,guts_lputs, guts_zmodem_progress
		,guts_send_byte,guts_recv_byte,guts_is_connected
		,NULL /* is_cancelled */
		,guts_data_waiting);

	/* ToDo: This would be a good time to detach or something. */
	zmodem_recv_files(&zm,gi.files[0],&bytes_received);

	oob_close(&gi);
}

void guts_background_upload(void *cbdata)
{
	struct GUTS_info gi=*(struct GUTS_info *)cbdata;

	zmodem_t	zm;
	ulong	fsize;
	FILE*	fp;

	if((fp=fopen(gi.files[0],"rb"))==NULL) {
		fprintf(stderr,"Error %d opening %s for read",errno,gi.files[0]);
		return;
	}

	setvbuf(fp,NULL,_IOFBF,0x10000);


	zmodem_mode=ZMODEM_MODE_SEND;

	zmodem_init(&zm
		,&gi
		,guts_lputs, guts_zmodem_progress
		,guts_send_byte,guts_recv_byte,guts_is_connected
		,NULL /* is_cancelled */
		,guts_data_waiting);

	zm.current_file_num = zm.total_files = 1;	/* ToDo: support multi-file/batch uploads */

	fsize=filelength(fileno(fp));

	if(zmodem_send_file(&zm, gi.files[0], fp
		,/* ZRQINIT? */TRUE, /* start_time */NULL, /* sent_bytes */ NULL))
		zmodem_get_zfin(&zm);

	fclose(fp);

	oob_close(&gi);
}

void guts_transfer(struct bbslist *bbs)
{
	struct GUTS_info gi;

	if(safe_mode)
		return;
	setup_defaults(&gi);
	gi.socket=conn_socket;
	gi.telnet=bbs->conn_type==CONN_TYPE_TELNET;
	gi.server=FALSE;
	gi.use_daemon=FALSE;
	gi.orig=FALSE;

	if(negotiation(&gi)) {
		oob_close(&gi);
		return;
	}

	/* Authentication Phase */
	if(!gi.inband) {
		if(authenticate(&gi)) {
			oob_close(&gi);
			return;
		}
	}

	if(gi.inband) {
		if(gi.direction==UPLOAD)
			begin_upload(bbs, TRUE);
		else
			zmodem_download(bbs);
		oob_close(&gi);
	}
	else {
		if(gi.direction==UPLOAD) {
			int		result;
			struct file_pick fpick;

			init_uifc(FALSE, FALSE);
			result=filepick(&uifc, "Upload", &fpick, bbs->uldir, NULL, UIFC_FP_ALLOWENTRY);

			if(result==-1 || fpick.files<1) {
				filepick_free(&fpick);
				uifcbail();
				return;
			}
			strListPush(&gi.files, fpick.selected[0]);
			filepick_free(&fpick);

			uifcbail();

			_beginthread(guts_background_upload, 0, &gi);
		}
		else {
			strListPush(&gi.files, bbs->dldir);
			_beginthread(guts_background_download, 0, &gi);
		}
	}

	return;
}
#endif

void ascii_upload(FILE *fp)
{
	char linebuf[1024+2];	/* One extra for terminator, one extra for added CR */
	char *p;
	char ch[2];
	int  inch;
	BOOL lastwascr=FALSE;

	ch[1]=0;
	while(!feof(fp)) {
		if(fgets(linebuf, 1025, fp)!=NULL) {
			if((p=strrchr(linebuf,'\n'))!=NULL) {
				if((p==linebuf && !lastwascr) || (p>linebuf && *(p-1)!='\n')) {
					*p='\r';
					p++;
					*p='\n';
					p++;
					*p=0;
				}
			}
			lastwascr=FALSE;
			p=strchr(p,0);
			if(p!=NULL && p>linebuf) {
				if(*(p-1)=='\r')
					lastwascr=TRUE;
			}
			conn_send(linebuf,strlen(linebuf),0);
		}
		/* Note, during ASCII uploads, do NOT send ANSI responses and don't
		 * allow speed changes. */
		while((inch=recv_byte(NULL, 0))>=0) {
			ch[0]=inch;
			cterm_write(ch, 1, NULL, 0, NULL);
		}
	}
	fclose(fp);
}

void zmodem_upload(struct bbslist *bbs, FILE *fp, char *path)
{
	zmodem_t	zm;
	ulong	fsize;

	draw_transfer_window("ZMODEM Upload");

	zmodem_mode=ZMODEM_MODE_SEND;

	conn_binary_mode_on();
	zmodem_init(&zm
		,/* cbdata */&zm
		,lputs, zmodem_progress
		,send_byte,recv_byte
		,is_connected
		,zmodem_check_abort
		,data_waiting);

	zm.current_file_num = zm.total_files = 1;	/* ToDo: support multi-file/batch uploads */
	
	fsize=filelength(fileno(fp));

	lprintf(LOG_INFO,"Sending %s (%lu KB) via ZMODEM"
		,path,fsize/1024);

	if(zmodem_send_file(&zm, path, fp
		,/* ZRQINIT? */TRUE, /* start_time */NULL, /* sent_bytes */ NULL))
		zmodem_get_zfin(&zm);

	fclose(fp);

	conn_binary_mode_off();
	lprintf(LOG_NOTICE,"Hit any key to continue...");
	if(log_fp!=NULL)
		fflush(log_fp);
	getch();

	erase_transfer_window();
}

BOOL zmodem_duplicate_callback(void *cbdata, void *zm_void)
{
	struct	text_info txtinfo;
	char	*buf;
	BOOL	ret=FALSE;
	int		i;
	char 	*opts[4]={
					 "Overwrite"
					,"Choose New Name"
					,"Cancel Download"
					,NULL
				  };
	struct zmodem_cbdata *cb=(struct zmodem_cbdata *)cbdata;
	zmodem_t	*zm=(zmodem_t *)zm_void;
	char		fpath[MAX_PATH+1];
	BOOL		loop=TRUE;

    gettextinfo(&txtinfo);
	buf=(char *)alloca(txtinfo.screenheight*txtinfo.screenwidth*2);
	gettext(1,1,txtinfo.screenwidth,txtinfo.screenheight,buf);
	init_uifc(FALSE, FALSE);

	while(loop) {
		loop=FALSE;
		i=0;
		uifc.helpbuf="Duplicate file... choose action\n";
		switch(uifc.list(WIN_MID|WIN_SAV,0,0,0,&i,NULL,"Duplicate File Name",opts)) {
			case 0:	/* Overwrite */
				sprintf(fpath,"%s/%s",cb->bbs->dldir,zm->current_file_name);
				unlink(fpath);
				ret=TRUE;
				break;
			case 1:	/* Choose new name */
				uifc.changes=0;
				uifc.helpbuf="Duplicate Filename... enter new name";
				if(uifc.input(WIN_MID|WIN_SAV,0,0,"New Filename: ",zm->current_file_name,sizeof(zm->current_file_name)-1,K_EDIT)==-1) {
					loop=TRUE;
				}
				else {
					if(uifc.changes)
						ret=TRUE;
					else
						loop=TRUE;
				}
				break;
		}
	}

	uifcbail();
	puttext(1,1,txtinfo.screenwidth,txtinfo.screenheight,buf);
	return(ret);
}

void zmodem_download(struct bbslist *bbs)