Major rework of the directory structure and the entire build system.

 -Erik

1 files changed, 0 insertions, 711 deletions

diff --git a/telnet.c b/telnet.c
deleted file mode 100644
index ce82a0ee8..000000000
--- a/telnet.c
+++ /dev/null
@@ -1,711 +0,0 @@
-/* vi: set sw=4 ts=4: */
-/*
- * telnet implementation for busybox
- *
- * Author: Tomi Ollila <too@iki.fi>
- * Copyright (C) 1994-2000 by Tomi Ollila
- *
- * Created: Thu Apr  7 13:29:41 1994 too
- * Last modified: Fri Jun  9 14:34:24 2000 too
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * HISTORY
- * Revision 3.1  1994/04/17  11:31:54  too
- * initial revision
- * Modified 2000/06/13 for inclusion into BusyBox by Erik Andersen
- * <andersen@lineo.com> 
- * Modified 2001/05/07 to add ability to pass TTYPE to remote host by Jim McQuillan
- * <jam@ltsp.org>
- *
- */
-
-#include <termios.h>
-#include <unistd.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include <string.h>
-#include <signal.h>
-#include <arpa/telnet.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <netdb.h>
-#include "busybox.h"
-
-#if 0
-static const int DOTRACE = 1;
-#endif
-
-#ifdef DOTRACE
-#include <arpa/inet.h> /* for inet_ntoa()... */
-#define TRACE(x, y) do { if (x) printf y; } while (0)
-#else
-#define TRACE(x, y) 
-#endif
-
-#if 0
-#define USE_POLL
-#include <sys/poll.h>
-#else
-#include <sys/time.h>
-#endif
-
-#define DATABUFSIZE  128
-#define IACBUFSIZE   128
-
-static const int CHM_TRY = 0;
-static const int CHM_ON = 1;
-static const int CHM_OFF = 2;
-
-static const int UF_ECHO = 0x01;
-static const int UF_SGA = 0x02;
-
-enum {
-	TS_0 = 1,
-	TS_IAC = 2,
-	TS_OPT = 3,
-	TS_SUB1 = 4,
-	TS_SUB2 = 5,
-};
-
-#define WriteCS(fd, str) write(fd, str, sizeof str -1)
-
-typedef unsigned char byte;
-
-/* use globals to reduce size ??? */ /* test this hypothesis later */
-static struct Globalvars {
-	int		netfd; /* console fd:s are 0 and 1 (and 2) */
-    /* same buffer used both for network and console read/write */
-	char    buf[DATABUFSIZE]; /* allocating so static size is smaller */
-	byte	telstate; /* telnet negotiation state from network input */
-	byte	telwish;  /* DO, DONT, WILL, WONT */
-	byte    charmode;
-	byte    telflags;
-	byte	gotsig;
-	/* buffer to handle telnet negotiations */
-	char    iacbuf[IACBUFSIZE];
-	short	iaclen; /* could even use byte */
-	struct termios termios_def;	
-	struct termios termios_raw;	
-} G;
-
-#define xUSE_GLOBALVAR_PTR /* xUSE... -> don't use :D (makes smaller code) */
-
-#ifdef USE_GLOBALVAR_PTR
-struct Globalvars * Gptr;
-#define G (*Gptr)
-#else
-static struct Globalvars G;
-#endif
-
-static inline void iacflush()
-{
-	write(G.netfd, G.iacbuf, G.iaclen);
-	G.iaclen = 0;
-}
-
-/* Function prototypes */
-static int getport(char * p);
-static struct in_addr getserver(char * p);
-static int create_socket();
-static void setup_sockaddr_in(struct sockaddr_in * addr, int port);
-static int remote_connect(struct in_addr addr, int port);
-static void rawmode();
-static void cookmode();
-static void do_linemode();
-static void will_charmode();
-static void telopt(byte c);
-static int subneg(byte c);
-#if 0
-static int local_bind(int port);
-#endif
-
-/* Some globals */
-static int one = 1;
-
-#ifdef BB_FEATURE_TELNET_TTYPE
-static char *ttype;
-#endif
-
-static void doexit(int ev)
-{
-	cookmode();
-	exit(ev);
-}	
-
-static void conescape()
-{
-	char b;
-
-	if (G.gotsig)	/* came from line  mode... go raw */
-		rawmode();
-
-	WriteCS(1, "\r\nConsole escape. Commands are:\r\n\n"
-			" l	go to line mode\r\n"
-			" c	go to character mode\r\n"
-			" z	suspend telnet\r\n"
-			" e	exit telnet\r\n");
-
-	if (read(0, &b, 1) <= 0)
-		doexit(1);
-
-	switch (b)
-	{
-	case 'l':
-		if (!G.gotsig)
-		{
-			do_linemode();
-			goto rrturn;
-		}
-		break;
-	case 'c':
-		if (G.gotsig)
-		{
-			will_charmode();
-			goto rrturn;
-		}
-		break;
-	case 'z':
-		cookmode();
-		kill(0, SIGTSTP);
-		rawmode();
-		break;
-	case 'e':
-		doexit(0);
-	}
-
-	WriteCS(1, "continuing...\r\n");
-
-	if (G.gotsig)
-		cookmode();
-	
- rrturn:
-	G.gotsig = 0;
-	
-}
-static void handlenetoutput(int len)
-{
-	/*	here we could do smart tricks how to handle 0xFF:s in output
-	 *	stream  like writing twice every sequence of FF:s (thus doing
-	 *	many write()s. But I think interactive telnet application does
-	 *	not need to be 100% 8-bit clean, so changing every 0xff:s to
-	 *	0x7f:s */
-
-	int i;
-	byte * p = G.buf;
-
-	for (i = len; i > 0; i--, p++)
-	{
-		if (*p == 0x1d)
-		{
-			conescape();
-			return;
-		}
-		if (*p == 0xff)
-			*p = 0x7f;
-	}
-	write(G.netfd, G.buf, len);
-}
-
-
-static void handlenetinput(int len)
-{
-	int i;
-	int cstart = 0;
-
-	for (i = 0; i < len; i++)
-	{
-		byte c = G.buf[i];
-
-		if (G.telstate == 0) /* most of the time state == 0 */
-		{
-			if (c == IAC)
-			{
-				cstart = i;
-				G.telstate = TS_IAC;
-			}
-		}
-		else
-			switch (G.telstate)
-			 {
-			 case TS_0:
-				 if (c == IAC)
-					 G.telstate = TS_IAC;
-				 else
-					 G.buf[cstart++] = c;
-				 break;
-
-			 case TS_IAC:
-				 if (c == IAC) /* IAC IAC -> 0xFF */
-				 {
-					 G.buf[cstart++] = c;
-					 G.telstate = TS_0;
-					 break;
-				 }
-				 /* else */
-				 switch (c)
-				 {
-				 case SB:
-					 G.telstate = TS_SUB1;
-					 break;
-				 case DO:
-				 case DONT:
-				 case WILL:
-				 case WONT:
-					 G.telwish =  c;
-					 G.telstate = TS_OPT;
-					 break;
-				 default:
-					 G.telstate = TS_0;	/* DATA MARK must be added later */
-				 }
-				 break;
-			 case TS_OPT: /* WILL, WONT, DO, DONT */
-				 telopt(c);
-				 G.telstate = TS_0;
-				 break;
-			 case TS_SUB1: /* Subnegotiation */
-			 case TS_SUB2: /* Subnegotiation */
-				 if (subneg(c) == TRUE)
-					 G.telstate = TS_0;
-				 break;
-			 }
-	}
-	if (G.telstate)
-	{
-		if (G.iaclen)			iacflush();
-		if (G.telstate == TS_0)	G.telstate = 0;
-
-		len = cstart;
-	}
-
-	if (len)
-		write(1, G.buf, len);
-}
-
-
-/* ******************************* */
-
-static inline void putiac(int c)
-{
-	G.iacbuf[G.iaclen++] = c;
-}
-
-
-static void putiac2(byte wwdd, byte c)
-{
-	if (G.iaclen + 3 > IACBUFSIZE)
-		iacflush();
-
-	putiac(IAC);
-	putiac(wwdd);
-	putiac(c);
-}
-
-#if 0
-static void putiac1(byte c)
-{
-	if (G.iaclen + 2 > IACBUFSIZE)
-		iacflush();
-
-	putiac(IAC);
-	putiac(c);
-}
-#endif
-
-#ifdef BB_FEATURE_TELNET_TTYPE
-static void putiac_subopt(byte c, char *str)
-{
-	int	len = strlen(str) + 6;   // ( 2 + 1 + 1 + strlen + 2 )
-
-	if (G.iaclen + len > IACBUFSIZE)
-		iacflush();
-
-	putiac(IAC);
-	putiac(SB);
-	putiac(c);
-	putiac(0);
-
-	while(*str)
-		putiac(*str++);
-
-	putiac(IAC);
-	putiac(SE);
-}
-#endif
-
-/* void putiacstring (subneg strings) */
-
-/* ******************************* */
-
-static char const escapecharis[] = "\r\nEscape character is ";
-
-static void setConMode()
-{
-	if (G.telflags & UF_ECHO)
-	{
-		if (G.charmode == CHM_TRY) {
-			G.charmode = CHM_ON;
-			printf("\r\nEntering character mode%s'^]'.\r\n", escapecharis);
-			rawmode();
-		}
-	}
-	else
-	{
-		if (G.charmode != CHM_OFF) {
-			G.charmode = CHM_OFF;
-			printf("\r\nEntering line mode%s'^C'.\r\n", escapecharis);
-			cookmode();
-		}
-	}
-}
-
-/* ******************************* */
-
-static void will_charmode()
-{
-	G.charmode = CHM_TRY;
-	G.telflags |= (UF_ECHO | UF_SGA);
-	setConMode();
-  
-	putiac2(DO, TELOPT_ECHO);
-	putiac2(DO, TELOPT_SGA);
-	iacflush();
-}
-
-static void do_linemode()
-{
-	G.charmode = CHM_TRY;
-	G.telflags &= ~(UF_ECHO | UF_SGA);
-	setConMode();
-
-	putiac2(DONT, TELOPT_ECHO);
-	putiac2(DONT, TELOPT_SGA);
-	iacflush();
-}
-
-/* ******************************* */
-
-static inline void to_notsup(char c)
-{
-	if      (G.telwish == WILL)	putiac2(DONT, c);
-	else if (G.telwish == DO)	putiac2(WONT, c);
-}
-
-static inline void to_echo()
-{
-	/* if server requests ECHO, don't agree */
-	if      (G.telwish == DO) {	putiac2(WONT, TELOPT_ECHO);	return; }
-	else if (G.telwish == DONT)	return;
-  
-	if (G.telflags & UF_ECHO)
-	{
-		if (G.telwish == WILL)
-			return;
-	}
-	else
-		if (G.telwish == WONT)
-			return;
-
-	if (G.charmode != CHM_OFF)
-		G.telflags ^= UF_ECHO;
-
-	if (G.telflags & UF_ECHO)
-		putiac2(DO, TELOPT_ECHO);
-	else
-		putiac2(DONT, TELOPT_ECHO);
-
-	setConMode();
-	WriteCS(1, "\r\n");  /* sudden modec */
-}
-
-static inline void to_sga()
-{
-	/* daemon always sends will/wont, client do/dont */
-
-	if (G.telflags & UF_SGA)
-	{
-		if (G.telwish == WILL)
-			return;
-	}
-	else
-		if (G.telwish == WONT)
-			return;
-  
-	if ((G.telflags ^= UF_SGA) & UF_SGA) /* toggle */
-		putiac2(DO, TELOPT_SGA);
-	else
-		putiac2(DONT, TELOPT_SGA);
-
-	return;
-}
-
-#ifdef BB_FEATURE_TELNET_TTYPE
-static inline void to_ttype()
-{
-	/* Tell server we will (or won't) do TTYPE */
-
-	if(ttype)
-		putiac2(WILL, TELOPT_TTYPE);
-	else
-		putiac2(WONT, TELOPT_TTYPE);
-
-	return;
-}
-#endif
-
-static void telopt(byte c)
-{
-	switch (c)
-	{
-	case TELOPT_ECHO:		to_echo(c);		break;
-	case TELOPT_SGA:		to_sga(c);		break;
-#ifdef BB_FEATURE_TELNET_TTYPE
-	case TELOPT_TTYPE:		to_ttype(c);	break;
-#endif
-	default:				to_notsup(c);	break;
-	}
-}
-
-
-/* ******************************* */
-
-/* subnegotiation -- ignore all (except TTYPE) */
-
-static int subneg(byte c)
-{
-	switch (G.telstate)
-	{
-	case TS_SUB1:
-		if (c == IAC)
-			G.telstate = TS_SUB2;
-#ifdef BB_FEATURE_TELNET_TTYPE
-		else
-		if (c == TELOPT_TTYPE)
-			putiac_subopt(TELOPT_TTYPE,ttype);
-#endif
-		break;
-	case TS_SUB2:
-		if (c == SE)
-			return TRUE;
-		G.telstate = TS_SUB1;
-		/* break; */
-	}
-	return FALSE;
-}
-
-/* ******************************* */
-
-static void fgotsig(int sig)
-{
-	G.gotsig = sig;
-}
-
-
-static void rawmode()
-{
-	tcsetattr(0, TCSADRAIN, &G.termios_raw);
-}	
-
-static void cookmode()
-{
-	tcsetattr(0, TCSADRAIN, &G.termios_def);
-}
-
-extern int telnet_main(int argc, char** argv)
-{
-	struct in_addr host;
-	int port;
-	int len;
-#ifdef USE_POLL
-	struct pollfd ufds[2];
-#else	
-	fd_set readfds;
-	int maxfd;
-#endif	
-
-#ifdef BB_FEATURE_TELNET_TTYPE
-    ttype = getenv("TERM");
-#endif
-
-	memset(&G, 0, sizeof G);
-
-	if (tcgetattr(0, &G.termios_def) < 0)
-		exit(1);
-	
-	G.termios_raw = G.termios_def;
-	cfmakeraw(&G.termios_raw);
-	
-	if (argc < 2)	show_usage();
-	port = (argc > 2)? getport(argv[2]): 23;
-	
-	host = getserver(argv[1]);
-
-	G.netfd = remote_connect(host, port);
-
-	signal(SIGINT, fgotsig);
-
-#ifdef USE_POLL
-	ufds[0].fd = 0; ufds[1].fd = G.netfd;
-	ufds[0].events = ufds[1].events = POLLIN;
-#else	
-	FD_ZERO(&readfds);
-	FD_SET(0, &readfds);
-	FD_SET(G.netfd, &readfds);
-	maxfd = G.netfd + 1;
-#endif
-	
-	while (1)
-	{
-#ifndef USE_POLL
-		fd_set rfds = readfds;
-		
-		switch (select(maxfd, &rfds, NULL, NULL, NULL))
-#else
-		switch (poll(ufds, 2, -1))
-#endif			
-		{
-		case 0:
-			/* timeout */
-		case -1:
-			/* error, ignore and/or log something, bay go to loop */
-			if (G.gotsig)
-				conescape();
-			else
-				sleep(1);
-			break;
-		default:
-
-#ifdef USE_POLL
-			if (ufds[0].revents) /* well, should check POLLIN, but ... */
-#else				
-			if (FD_ISSET(0, &rfds))
-#endif				
-			{
-				len = read(0, G.buf, DATABUFSIZE);
-
-				if (len <= 0)
-					doexit(0);
-
-				TRACE(0, ("Read con: %d\n", len));
-				
-				handlenetoutput(len);
-			}
-
-#ifdef USE_POLL
-			if (ufds[1].revents) /* well, should check POLLIN, but ... */
-#else				
-			if (FD_ISSET(G.netfd, &rfds))
-#endif				
-			{
-				len = read(G.netfd, G.buf, DATABUFSIZE);
-
-				if (len <= 0)
-				{
-					WriteCS(1, "Connection closed by foreign host.\r\n");
-					doexit(1);
-				}
-				TRACE(0, ("Read netfd (%d): %d\n", G.netfd, len));
-
-				handlenetinput(len);
-			}
-		}
-	}
-}
-
-static int getport(char * p)
-{
-	unsigned int port = atoi(p);
-
-	if ((unsigned)(port - 1 ) > 65534)
-	{
-		error_msg_and_die("%s: bad port number", p);
-	}
-	return port;
-}
-
-static struct in_addr getserver(char * host)
-{
-	struct in_addr addr;
-
-	struct hostent * he;
-	he = xgethostbyname(host);
-	memcpy(&addr, he->h_addr, sizeof addr);
-
-	TRACE(1, ("addr: %s\n", inet_ntoa(addr)));
-
-	return addr;
-}
-
-static int create_socket()
-{
-	return socket(AF_INET, SOCK_STREAM, 0);
-}
-
-static void setup_sockaddr_in(struct sockaddr_in * addr, int port)
-{
-	memset(addr, 0, sizeof(struct sockaddr_in));
-	addr->sin_family = AF_INET;
-	addr->sin_port = htons(port);
-}
-  
-#if 0
-static int local_bind(int port)
-{
-	struct sockaddr_in s_addr;
-	int s = create_socket();
-  
-	setup_sockaddr_in(&s_addr, port);
-  
-	setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &one, sizeof one);
-  
-	if (bind(s, &s_addr, sizeof s_addr) < 0)
-	{
-		char * e = sys_errlist[errno];
-		syserrorexit("bind");
-		exit(1);
-	}
-	listen(s, 1);
-	
-	return s;
-}
-#endif
-
-static int remote_connect(struct in_addr addr, int port)
-{
-	struct sockaddr_in s_addr;
-	int s = create_socket();
-
-	setup_sockaddr_in(&s_addr, port);
-	s_addr.sin_addr = addr;
-
-	setsockopt(s, SOL_SOCKET, SO_KEEPALIVE, &one, sizeof one);
-
-	if (connect(s, (struct sockaddr *)&s_addr, sizeof s_addr) < 0)
-	{
-		perror_msg_and_die("Unable to connect to remote host");
-	}
-	return s;
-}
-
-/*
-Local Variables:
-c-file-style: "linux"
-c-basic-offset: 4
-tab-width: 4
-End:
-*/
-