mirror of
https://github.com/sheumann/hush.git
synced 2024-08-15 02:29:00 +00:00
function old new delta setsockopt_int - 23 +23 do_load 918 934 +16 setsockopt_SOL_SOCKET_int - 14 +14 setsockopt_keepalive - 10 +10 setsockopt_SOL_SOCKET_1 - 10 +10 buffer_fill_and_print 169 178 +9 setsockopt_1 - 8 +8 nfsmount 3560 3566 +6 redirect 1277 1282 +5 tcpudpsvd_main 1782 1786 +4 d6_send_kernel_packet 272 275 +3 i2cget_main 380 382 +2 ed_main 2544 2545 +1 scan_recursive 380 378 -2 nbdclient_main 492 490 -2 hash_find 235 233 -2 cmdputs 334 332 -2 parse_command 1443 1440 -3 static.two 4 - -4 ntpd_main 1039 1035 -4 const_int_1 4 - -4 const_IPTOS_LOWDELAY 4 - -4 RCVBUF 4 - -4 ntp_init 474 469 -5 change_listen_mode 316 310 -6 uevent_main 416 409 -7 arping_main 1697 1690 -7 telnet_main 1612 1603 -9 socket_want_pktinfo 42 33 -9 setsockopt_reuseaddr 21 10 -11 setsockopt_broadcast 21 10 -11 httpd_main 772 757 -15 get_remote_transfer_fd 109 94 -15 make_new_session 503 487 -16 ftpd_main 2177 2160 -17 read_bunzip 1896 1866 -30 common_traceroute_main 4099 4058 -41 common_ping_main 1836 1783 -53 ------------------------------------------------------------------------------ (add/remove: 5/4 grow/shrink: 8/21 up/down: 111/-283) Total: -172 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
666 lines
13 KiB
C
666 lines
13 KiB
C
/* 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
|
|
*
|
|
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
|
|
*
|
|
* 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@codepoet.org>
|
|
* Modified 2001/05/07 to add ability to pass TTYPE to remote host by Jim McQuillan
|
|
* <jam@ltsp.org>
|
|
* Modified 2004/02/11 to add ability to pass the USER variable to remote host
|
|
* by Fernando Silveira <swrh@gmx.net>
|
|
*
|
|
*/
|
|
|
|
//usage:#if ENABLE_FEATURE_TELNET_AUTOLOGIN
|
|
//usage:#define telnet_trivial_usage
|
|
//usage: "[-a] [-l USER] HOST [PORT]"
|
|
//usage:#define telnet_full_usage "\n\n"
|
|
//usage: "Connect to telnet server\n"
|
|
//usage: "\n -a Automatic login with $USER variable"
|
|
//usage: "\n -l USER Automatic login as USER"
|
|
//usage:
|
|
//usage:#else
|
|
//usage:#define telnet_trivial_usage
|
|
//usage: "HOST [PORT]"
|
|
//usage:#define telnet_full_usage "\n\n"
|
|
//usage: "Connect to telnet server"
|
|
//usage:#endif
|
|
|
|
#include <arpa/telnet.h>
|
|
#include <netinet/in.h>
|
|
#include "libbb.h"
|
|
|
|
#ifdef __BIONIC__
|
|
/* should be in arpa/telnet.h */
|
|
# define IAC 255 /* interpret as command: */
|
|
# define DONT 254 /* you are not to use option */
|
|
# define DO 253 /* please, you use option */
|
|
# define WONT 252 /* I won't use option */
|
|
# define WILL 251 /* I will use option */
|
|
# define SB 250 /* interpret as subnegotiation */
|
|
# define SE 240 /* end sub negotiation */
|
|
# define TELOPT_ECHO 1 /* echo */
|
|
# define TELOPT_SGA 3 /* suppress go ahead */
|
|
# define TELOPT_TTYPE 24 /* terminal type */
|
|
# define TELOPT_NAWS 31 /* window size */
|
|
#endif
|
|
|
|
#ifdef DOTRACE
|
|
# define TRACE(x, y) do { if (x) printf y; } while (0)
|
|
#else
|
|
# define TRACE(x, y)
|
|
#endif
|
|
|
|
enum {
|
|
DATABUFSIZE = 128,
|
|
IACBUFSIZE = 128,
|
|
|
|
CHM_TRY = 0,
|
|
CHM_ON = 1,
|
|
CHM_OFF = 2,
|
|
|
|
UF_ECHO = 0x01,
|
|
UF_SGA = 0x02,
|
|
|
|
TS_NORMAL = 0,
|
|
TS_COPY = 1,
|
|
TS_IAC = 2,
|
|
TS_OPT = 3,
|
|
TS_SUB1 = 4,
|
|
TS_SUB2 = 5,
|
|
TS_CR = 6,
|
|
};
|
|
|
|
typedef unsigned char byte;
|
|
|
|
enum { netfd = 3 };
|
|
|
|
struct globals {
|
|
int iaclen; /* could even use byte, but it's a loss on x86 */
|
|
byte telstate; /* telnet negotiation state from network input */
|
|
byte telwish; /* DO, DONT, WILL, WONT */
|
|
byte charmode;
|
|
byte telflags;
|
|
byte do_termios;
|
|
#if ENABLE_FEATURE_TELNET_TTYPE
|
|
char *ttype;
|
|
#endif
|
|
#if ENABLE_FEATURE_TELNET_AUTOLOGIN
|
|
const char *autologin;
|
|
#endif
|
|
#if ENABLE_FEATURE_AUTOWIDTH
|
|
unsigned win_width, win_height;
|
|
#endif
|
|
/* same buffer used both for network and console read/write */
|
|
char buf[DATABUFSIZE];
|
|
/* buffer to handle telnet negotiations */
|
|
char iacbuf[IACBUFSIZE];
|
|
struct termios termios_def;
|
|
struct termios termios_raw;
|
|
} FIX_ALIASING;
|
|
#define G (*(struct globals*)&bb_common_bufsiz1)
|
|
#define INIT_G() do { \
|
|
struct G_sizecheck { \
|
|
char G_sizecheck[sizeof(G) > COMMON_BUFSIZE ? -1 : 1]; \
|
|
}; \
|
|
} while (0)
|
|
|
|
|
|
static void rawmode(void);
|
|
static void cookmode(void);
|
|
static void do_linemode(void);
|
|
static void will_charmode(void);
|
|
static void telopt(byte c);
|
|
static void subneg(byte c);
|
|
|
|
static void iac_flush(void)
|
|
{
|
|
full_write(netfd, G.iacbuf, G.iaclen);
|
|
G.iaclen = 0;
|
|
}
|
|
|
|
static void doexit(int ev) NORETURN;
|
|
static void doexit(int ev)
|
|
{
|
|
cookmode();
|
|
exit(ev);
|
|
}
|
|
|
|
static void con_escape(void)
|
|
{
|
|
char b;
|
|
|
|
if (bb_got_signal) /* came from line mode... go raw */
|
|
rawmode();
|
|
|
|
full_write1_str("\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(STDIN_FILENO, &b, 1) <= 0)
|
|
doexit(EXIT_FAILURE);
|
|
|
|
switch (b) {
|
|
case 'l':
|
|
if (!bb_got_signal) {
|
|
do_linemode();
|
|
goto ret;
|
|
}
|
|
break;
|
|
case 'c':
|
|
if (bb_got_signal) {
|
|
will_charmode();
|
|
goto ret;
|
|
}
|
|
break;
|
|
case 'z':
|
|
cookmode();
|
|
kill(0, SIGTSTP);
|
|
rawmode();
|
|
break;
|
|
case 'e':
|
|
doexit(EXIT_SUCCESS);
|
|
}
|
|
|
|
full_write1_str("continuing...\r\n");
|
|
|
|
if (bb_got_signal)
|
|
cookmode();
|
|
ret:
|
|
bb_got_signal = 0;
|
|
}
|
|
|
|
static void handle_net_output(int len)
|
|
{
|
|
byte outbuf[2 * DATABUFSIZE];
|
|
byte *dst = outbuf;
|
|
byte *src = (byte*)G.buf;
|
|
byte *end = src + len;
|
|
|
|
while (src < end) {
|
|
byte c = *src++;
|
|
if (c == 0x1d) {
|
|
con_escape();
|
|
return;
|
|
}
|
|
*dst = c;
|
|
if (c == IAC)
|
|
*++dst = c; /* IAC -> IAC IAC */
|
|
else
|
|
if (c == '\r' || c == '\n') {
|
|
/* Enter key sends '\r' in raw mode and '\n' in cooked one.
|
|
*
|
|
* See RFC 1123 3.3.1 Telnet End-of-Line Convention.
|
|
* Using CR LF instead of other allowed possibilities
|
|
* like CR NUL - easier to talk to HTTP/SMTP servers.
|
|
*/
|
|
*dst = '\r'; /* Enter -> CR LF */
|
|
*++dst = '\n';
|
|
}
|
|
dst++;
|
|
}
|
|
if (dst - outbuf != 0)
|
|
full_write(netfd, outbuf, dst - outbuf);
|
|
}
|
|
|
|
static void handle_net_input(int len)
|
|
{
|
|
int i;
|
|
int cstart = 0;
|
|
|
|
for (i = 0; i < len; i++) {
|
|
byte c = G.buf[i];
|
|
|
|
if (G.telstate == TS_NORMAL) { /* most typical state */
|
|
if (c == IAC) {
|
|
cstart = i;
|
|
G.telstate = TS_IAC;
|
|
}
|
|
else if (c == '\r') {
|
|
cstart = i + 1;
|
|
G.telstate = TS_CR;
|
|
}
|
|
/* No IACs were seen so far, no need to copy
|
|
* bytes within G.buf: */
|
|
continue;
|
|
}
|
|
|
|
switch (G.telstate) {
|
|
case TS_CR:
|
|
/* Prev char was CR. If cur one is NUL, ignore it.
|
|
* See RFC 1123 section 3.3.1 for discussion of telnet EOL handling.
|
|
*/
|
|
G.telstate = TS_COPY;
|
|
if (c == '\0')
|
|
break;
|
|
/* else: fall through - need to handle CR IAC ... properly */
|
|
|
|
case TS_COPY: /* Prev char was ordinary */
|
|
/* Similar to NORMAL, but in TS_COPY we need to copy bytes */
|
|
if (c == IAC)
|
|
G.telstate = TS_IAC;
|
|
else
|
|
G.buf[cstart++] = c;
|
|
if (c == '\r')
|
|
G.telstate = TS_CR;
|
|
break;
|
|
|
|
case TS_IAC: /* Prev char was IAC */
|
|
if (c == IAC) { /* IAC IAC -> one IAC */
|
|
G.buf[cstart++] = c;
|
|
G.telstate = TS_COPY;
|
|
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;
|
|
/* DATA MARK must be added later */
|
|
default:
|
|
G.telstate = TS_COPY;
|
|
}
|
|
break;
|
|
|
|
case TS_OPT: /* Prev chars were IAC WILL/WONT/DO/DONT */
|
|
telopt(c);
|
|
G.telstate = TS_COPY;
|
|
break;
|
|
|
|
case TS_SUB1: /* Subnegotiation */
|
|
case TS_SUB2: /* Subnegotiation */
|
|
subneg(c); /* can change G.telstate */
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (G.telstate != TS_NORMAL) {
|
|
/* We had some IACs, or CR */
|
|
if (G.iaclen)
|
|
iac_flush();
|
|
if (G.telstate == TS_COPY) /* we aren't in the middle of IAC */
|
|
G.telstate = TS_NORMAL;
|
|
len = cstart;
|
|
}
|
|
|
|
if (len)
|
|
full_write(STDOUT_FILENO, G.buf, len);
|
|
}
|
|
|
|
static void put_iac(int c)
|
|
{
|
|
G.iacbuf[G.iaclen++] = c;
|
|
}
|
|
|
|
static void put_iac2(byte wwdd, byte c)
|
|
{
|
|
if (G.iaclen + 3 > IACBUFSIZE)
|
|
iac_flush();
|
|
|
|
put_iac(IAC);
|
|
put_iac(wwdd);
|
|
put_iac(c);
|
|
}
|
|
|
|
#if ENABLE_FEATURE_TELNET_TTYPE
|
|
static void put_iac_subopt(byte c, char *str)
|
|
{
|
|
int len = strlen(str) + 6; // ( 2 + 1 + 1 + strlen + 2 )
|
|
|
|
if (G.iaclen + len > IACBUFSIZE)
|
|
iac_flush();
|
|
|
|
put_iac(IAC);
|
|
put_iac(SB);
|
|
put_iac(c);
|
|
put_iac(0);
|
|
|
|
while (*str)
|
|
put_iac(*str++);
|
|
|
|
put_iac(IAC);
|
|
put_iac(SE);
|
|
}
|
|
#endif
|
|
|
|
#if ENABLE_FEATURE_TELNET_AUTOLOGIN
|
|
static void put_iac_subopt_autologin(void)
|
|
{
|
|
int len = strlen(G.autologin) + 6; // (2 + 1 + 1 + strlen + 2)
|
|
const char *p = "USER";
|
|
|
|
if (G.iaclen + len > IACBUFSIZE)
|
|
iac_flush();
|
|
|
|
put_iac(IAC);
|
|
put_iac(SB);
|
|
put_iac(TELOPT_NEW_ENVIRON);
|
|
put_iac(TELQUAL_IS);
|
|
put_iac(NEW_ENV_VAR);
|
|
|
|
while (*p)
|
|
put_iac(*p++);
|
|
|
|
put_iac(NEW_ENV_VALUE);
|
|
|
|
p = G.autologin;
|
|
while (*p)
|
|
put_iac(*p++);
|
|
|
|
put_iac(IAC);
|
|
put_iac(SE);
|
|
}
|
|
#endif
|
|
|
|
#if ENABLE_FEATURE_AUTOWIDTH
|
|
static void put_iac_naws(byte c, int x, int y)
|
|
{
|
|
if (G.iaclen + 9 > IACBUFSIZE)
|
|
iac_flush();
|
|
|
|
put_iac(IAC);
|
|
put_iac(SB);
|
|
put_iac(c);
|
|
|
|
/* "... & 0xff" implicitly done below */
|
|
put_iac(x >> 8);
|
|
put_iac(x);
|
|
put_iac(y >> 8);
|
|
put_iac(y);
|
|
|
|
put_iac(IAC);
|
|
put_iac(SE);
|
|
}
|
|
#endif
|
|
|
|
static void setConMode(void)
|
|
{
|
|
if (G.telflags & UF_ECHO) {
|
|
if (G.charmode == CHM_TRY) {
|
|
G.charmode = CHM_ON;
|
|
printf("\r\nEntering %s mode"
|
|
"\r\nEscape character is '^%c'.\r\n", "character", ']');
|
|
rawmode();
|
|
}
|
|
} else {
|
|
if (G.charmode != CHM_OFF) {
|
|
G.charmode = CHM_OFF;
|
|
printf("\r\nEntering %s mode"
|
|
"\r\nEscape character is '^%c'.\r\n", "line", 'C');
|
|
cookmode();
|
|
}
|
|
}
|
|
}
|
|
|
|
static void will_charmode(void)
|
|
{
|
|
G.charmode = CHM_TRY;
|
|
G.telflags |= (UF_ECHO | UF_SGA);
|
|
setConMode();
|
|
|
|
put_iac2(DO, TELOPT_ECHO);
|
|
put_iac2(DO, TELOPT_SGA);
|
|
iac_flush();
|
|
}
|
|
|
|
static void do_linemode(void)
|
|
{
|
|
G.charmode = CHM_TRY;
|
|
G.telflags &= ~(UF_ECHO | UF_SGA);
|
|
setConMode();
|
|
|
|
put_iac2(DONT, TELOPT_ECHO);
|
|
put_iac2(DONT, TELOPT_SGA);
|
|
iac_flush();
|
|
}
|
|
|
|
static void to_notsup(char c)
|
|
{
|
|
if (G.telwish == WILL)
|
|
put_iac2(DONT, c);
|
|
else if (G.telwish == DO)
|
|
put_iac2(WONT, c);
|
|
}
|
|
|
|
static void to_echo(void)
|
|
{
|
|
/* if server requests ECHO, don't agree */
|
|
if (G.telwish == DO) {
|
|
put_iac2(WONT, TELOPT_ECHO);
|
|
return;
|
|
}
|
|
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)
|
|
put_iac2(DO, TELOPT_ECHO);
|
|
else
|
|
put_iac2(DONT, TELOPT_ECHO);
|
|
|
|
setConMode();
|
|
full_write1_str("\r\n"); /* sudden modec */
|
|
}
|
|
|
|
static void to_sga(void)
|
|
{
|
|
/* daemon always sends will/wont, client do/dont */
|
|
|
|
if (G.telflags & UF_SGA) {
|
|
if (G.telwish == WILL)
|
|
return;
|
|
} else if (G.telwish == WONT)
|
|
return;
|
|
|
|
G.telflags ^= UF_SGA; /* toggle */
|
|
if (G.telflags & UF_SGA)
|
|
put_iac2(DO, TELOPT_SGA);
|
|
else
|
|
put_iac2(DONT, TELOPT_SGA);
|
|
}
|
|
|
|
#if ENABLE_FEATURE_TELNET_TTYPE
|
|
static void to_ttype(void)
|
|
{
|
|
/* Tell server we will (or won't) do TTYPE */
|
|
if (G.ttype)
|
|
put_iac2(WILL, TELOPT_TTYPE);
|
|
else
|
|
put_iac2(WONT, TELOPT_TTYPE);
|
|
}
|
|
#endif
|
|
|
|
#if ENABLE_FEATURE_TELNET_AUTOLOGIN
|
|
static void to_new_environ(void)
|
|
{
|
|
/* Tell server we will (or will not) do AUTOLOGIN */
|
|
if (G.autologin)
|
|
put_iac2(WILL, TELOPT_NEW_ENVIRON);
|
|
else
|
|
put_iac2(WONT, TELOPT_NEW_ENVIRON);
|
|
}
|
|
#endif
|
|
|
|
#if ENABLE_FEATURE_AUTOWIDTH
|
|
static void to_naws(void)
|
|
{
|
|
/* Tell server we will do NAWS */
|
|
put_iac2(WILL, TELOPT_NAWS);
|
|
}
|
|
#endif
|
|
|
|
static void telopt(byte c)
|
|
{
|
|
switch (c) {
|
|
case TELOPT_ECHO:
|
|
to_echo(); break;
|
|
case TELOPT_SGA:
|
|
to_sga(); break;
|
|
#if ENABLE_FEATURE_TELNET_TTYPE
|
|
case TELOPT_TTYPE:
|
|
to_ttype(); break;
|
|
#endif
|
|
#if ENABLE_FEATURE_TELNET_AUTOLOGIN
|
|
case TELOPT_NEW_ENVIRON:
|
|
to_new_environ(); break;
|
|
#endif
|
|
#if ENABLE_FEATURE_AUTOWIDTH
|
|
case TELOPT_NAWS:
|
|
to_naws();
|
|
put_iac_naws(c, G.win_width, G.win_height);
|
|
break;
|
|
#endif
|
|
default:
|
|
to_notsup(c);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* subnegotiation -- ignore all (except TTYPE,NAWS) */
|
|
static void subneg(byte c)
|
|
{
|
|
switch (G.telstate) {
|
|
case TS_SUB1:
|
|
if (c == IAC)
|
|
G.telstate = TS_SUB2;
|
|
#if ENABLE_FEATURE_TELNET_TTYPE
|
|
else
|
|
if (c == TELOPT_TTYPE && G.ttype)
|
|
put_iac_subopt(TELOPT_TTYPE, G.ttype);
|
|
#endif
|
|
#if ENABLE_FEATURE_TELNET_AUTOLOGIN
|
|
else
|
|
if (c == TELOPT_NEW_ENVIRON && G.autologin)
|
|
put_iac_subopt_autologin();
|
|
#endif
|
|
break;
|
|
case TS_SUB2:
|
|
if (c == SE) {
|
|
G.telstate = TS_COPY;
|
|
return;
|
|
}
|
|
G.telstate = TS_SUB1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void rawmode(void)
|
|
{
|
|
if (G.do_termios)
|
|
tcsetattr(0, TCSADRAIN, &G.termios_raw);
|
|
}
|
|
|
|
static void cookmode(void)
|
|
{
|
|
if (G.do_termios)
|
|
tcsetattr(0, TCSADRAIN, &G.termios_def);
|
|
}
|
|
|
|
int telnet_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
|
int telnet_main(int argc UNUSED_PARAM, char **argv)
|
|
{
|
|
char *host;
|
|
int port;
|
|
int len;
|
|
struct pollfd ufds[2];
|
|
|
|
INIT_G();
|
|
|
|
#if ENABLE_FEATURE_AUTOWIDTH
|
|
get_terminal_width_height(0, &G.win_width, &G.win_height);
|
|
#endif
|
|
|
|
#if ENABLE_FEATURE_TELNET_TTYPE
|
|
G.ttype = getenv("TERM");
|
|
#endif
|
|
|
|
if (tcgetattr(0, &G.termios_def) >= 0) {
|
|
G.do_termios = 1;
|
|
G.termios_raw = G.termios_def;
|
|
cfmakeraw(&G.termios_raw);
|
|
}
|
|
|
|
#if ENABLE_FEATURE_TELNET_AUTOLOGIN
|
|
if (1 & getopt32(argv, "al:", &G.autologin))
|
|
G.autologin = getenv("USER");
|
|
argv += optind;
|
|
#else
|
|
argv++;
|
|
#endif
|
|
if (!*argv)
|
|
bb_show_usage();
|
|
host = *argv++;
|
|
port = bb_lookup_port(*argv ? *argv++ : "telnet", "tcp", 23);
|
|
if (*argv) /* extra params?? */
|
|
bb_show_usage();
|
|
|
|
xmove_fd(create_and_connect_stream_or_die(host, port), netfd);
|
|
|
|
setsockopt_keepalive(netfd);
|
|
|
|
signal(SIGINT, record_signo);
|
|
|
|
ufds[0].fd = STDIN_FILENO;
|
|
ufds[0].events = POLLIN;
|
|
ufds[1].fd = netfd;
|
|
ufds[1].events = POLLIN;
|
|
|
|
while (1) {
|
|
if (poll(ufds, 2, -1) < 0) {
|
|
/* error, ignore and/or log something, bay go to loop */
|
|
if (bb_got_signal)
|
|
con_escape();
|
|
else
|
|
sleep(1);
|
|
continue;
|
|
}
|
|
|
|
// FIXME: reads can block. Need full bidirectional buffering.
|
|
|
|
if (ufds[0].revents) {
|
|
len = safe_read(STDIN_FILENO, G.buf, DATABUFSIZE);
|
|
if (len <= 0)
|
|
doexit(EXIT_SUCCESS);
|
|
TRACE(0, ("Read con: %d\n", len));
|
|
handle_net_output(len);
|
|
}
|
|
|
|
if (ufds[1].revents) {
|
|
len = safe_read(netfd, G.buf, DATABUFSIZE);
|
|
if (len <= 0) {
|
|
full_write1_str("Connection closed by foreign host\r\n");
|
|
doexit(EXIT_FAILURE);
|
|
}
|
|
TRACE(0, ("Read netfd (%d): %d\n", netfd, len));
|
|
handle_net_input(len);
|
|
}
|
|
} /* while (1) */
|
|
}
|