Example #1
0
int process_nonoption_arg(char *arg, Conf *conf, int *allow_launch)
{
    char *p, *q = arg;

    if (got_host) {
        /*
         * If we already have a host name, treat this argument as a
         * port number. NB we have to treat this as a saved -P
         * argument, so that it will be deferred until it's a good
         * moment to run it.
         */
        int ret = cmdline_process_param("-P", arg, 1, conf);
        assert(ret == 2);
    } else if (!strncmp(q, "telnet:", 7)) {
        /*
         * If the hostname starts with "telnet:",
         * set the protocol to Telnet and process
         * the string as a Telnet URL.
         */
        char c;

        q += 7;
        if (q[0] == '/' && q[1] == '/')
            q += 2;
        conf_set_int(conf, CONF_protocol, PROT_TELNET);
        p = q;
        while (*p && *p != ':' && *p != '/')
            p++;
        c = *p;
        if (*p)
            *p++ = '\0';
        if (c == ':')
            conf_set_int(conf, CONF_port, atoi(p));
        else
            conf_set_int(conf, CONF_port, -1);
	conf_set_str(conf, CONF_host, q);
        got_host = 1;
    } else {
        /*
         * Otherwise, treat this argument as a host name.
         */
        p = arg;
        while (*p && !isspace((unsigned char)*p))
            p++;
        if (*p)
            *p++ = '\0';
        conf_set_str(conf, CONF_host, q);
        got_host = 1;
    }
    if (got_host)
	*allow_launch = TRUE;
    return 1;
}
Example #2
0
void cmdline_run_saved(Conf *conf)
{
    int pri, i;
    for (pri = 0; pri < NPRIORITIES; pri++) {
	for (i = 0; i < saves[pri].nsaved; i++) {
	    cmdline_process_param(saves[pri].params[i].p,
				  saves[pri].params[i].value, 0, conf);
            sfree(saves[pri].params[i].p);
            sfree(saves[pri].params[i].value);
        }
        saves[pri].nsaved = 0;
    }
}
Example #3
0
int plink_main(int argc, char **argv)
{
    int sending;
    int portnumber = -1;
    SOCKET *sklist;
    int skcount, sksize;
    int exitcode;
    int errors;
    int got_host = FALSE;
    int use_subsystem = 0;
    unsigned long now, next, then;
	
    IsPortableMode() ;
    //if( IsPortableMode() ) { printf( "Portable mode on\n" ) ; }

#else

int main(int argc, char **argv)
{
    int sending;
    int portnumber = -1;
    SOCKET *sklist;
    int skcount, sksize;
    int exitcode;
    int errors;
    int got_host = FALSE;
    int use_subsystem = 0;
    unsigned long now, next, then;
#endif

    sklist = NULL;
    skcount = sksize = 0;
    /*
     * Initialise port and protocol to sensible defaults. (These
     * will be overridden by more or less anything.)
     */
    default_protocol = PROT_SSH;
    default_port = 22;

    flags = FLAG_STDERR;
    /*
     * Process the command line.
     */
    conf = conf_new();
    do_defaults(NULL, conf);
    loaded_session = FALSE;
    default_protocol = conf_get_int(conf, CONF_protocol);
    default_port = conf_get_int(conf, CONF_port);
    errors = 0;
    {
	/*
	 * Override the default protocol if PLINK_PROTOCOL is set.
	 */
	char *p = getenv("PLINK_PROTOCOL");
	if (p) {
	    const Backend *b = backend_from_name(p);
	    if (b) {
		default_protocol = b->protocol;
		default_port = b->default_port;
		conf_set_int(conf, CONF_protocol, default_protocol);
		conf_set_int(conf, CONF_port, default_port);
	    }
	}
    }
    while (--argc) {
	char *p = *++argv;
	if (*p == '-') {
	    int ret = cmdline_process_param(p, (argc > 1 ? argv[1] : NULL),
					    1, conf);
	    if (ret == -2) {
		fprintf(stderr,
			"plink: option \"%s\" requires an argument\n", p);
		errors = 1;
	    } else if (ret == 2) {
		--argc, ++argv;
	    } else if (ret == 1) {
		continue;
	    } else if (!strcmp(p, "-batch")) {
		console_batch_mode = 1;
	    } else if (!strcmp(p, "-s")) {
		/* Save status to write to conf later. */
		use_subsystem = 1;
	    } else if (!strcmp(p, "-V") || !strcmp(p, "--version")) {
                version();
	    } else if (!strcmp(p, "--help")) {
                usage();
            } else if (!strcmp(p, "-pgpfp")) {
                pgp_fingerprints();
                exit(1);
	    } else {
		fprintf(stderr, "plink: unknown option \"%s\"\n", p);
		errors = 1;
	    }
	} else if (*p) {
	    if (!conf_launchable(conf) || !(got_host || loaded_session)) {
		char *q = p;
		/*
		 * If the hostname starts with "telnet:", set the
		 * protocol to Telnet and process the string as a
		 * Telnet URL.
		 */
		if (!strncmp(q, "telnet:", 7)) {
		    char c;

		    q += 7;
		    if (q[0] == '/' && q[1] == '/')
			q += 2;
		    conf_set_int(conf, CONF_protocol, PROT_TELNET);
		    p = q;
		    while (*p && *p != ':' && *p != '/')
			p++;
		    c = *p;
		    if (*p)
			*p++ = '\0';
		    if (c == ':')
			conf_set_int(conf, CONF_port, atoi(p));
		    else
			conf_set_int(conf, CONF_port, -1);
		    conf_set_str(conf, CONF_host, q);
		    got_host = TRUE;
		} else {
		    char *r, *user, *host;
		    /*
		     * Before we process the [[email protected]]host string, we
		     * first check for the presence of a protocol
		     * prefix (a protocol name followed by ",").
		     */
		    r = strchr(p, ',');
		    if (r) {
			const Backend *b;
			*r = '\0';
			b = backend_from_name(p);
			if (b) {
			    default_protocol = b->protocol;
			    conf_set_int(conf, CONF_protocol,
					 default_protocol);
			    portnumber = b->default_port;
			}
			p = r + 1;
		    }

		    /*
		     * A nonzero length string followed by an @ is treated
		     * as a username. (We discount an _initial_ @.) The
		     * rest of the string (or the whole string if no @)
		     * is treated as a session name and/or hostname.
		     */
		    r = strrchr(p, '@');
		    if (r == p)
			p++, r = NULL; /* discount initial @ */
		    if (r) {
			*r++ = '\0';
			user = p, host = r;
		    } else {
			user = NULL, host = p;
		    }

		    /*
		     * Now attempt to load a saved session with the
		     * same name as the hostname.
		     */
		    {
			Conf *conf2 = conf_new();
			do_defaults(host, conf2);
			if (loaded_session || !conf_launchable(conf2)) {
			    /* No settings for this host; use defaults */
			    /* (or session was already loaded with -load) */
			    conf_set_str(conf, CONF_host, host);
			    conf_set_int(conf, CONF_port, default_port);
			    got_host = TRUE;
			} else {
			    conf_copy_into(conf, conf2);
			    loaded_session = TRUE;
			}
			conf_free(conf2);
		    }

		    if (user) {
			/* Patch in specified username. */
			conf_set_str(conf, CONF_username, user);
		    }

		}
	    } else {
		char *command;
		int cmdlen, cmdsize;
		cmdlen = cmdsize = 0;
		command = NULL;

		while (argc) {
		    while (*p) {
			if (cmdlen >= cmdsize) {
			    cmdsize = cmdlen + 512;
			    command = sresize(command, cmdsize, char);
			}
			command[cmdlen++]=*p++;
		    }
		    if (cmdlen >= cmdsize) {
			cmdsize = cmdlen + 512;
			command = sresize(command, cmdsize, char);
		    }
		    command[cmdlen++]=' '; /* always add trailing space */
		    if (--argc) p = *++argv;
		}
		if (cmdlen) command[--cmdlen]='\0';
				       /* change trailing blank to NUL */
		conf_set_str(conf, CONF_remote_cmd, command);
		conf_set_str(conf, CONF_remote_cmd2, "");
		conf_set_int(conf, CONF_nopty, TRUE);  /* command => no tty */

		break;		       /* done with cmdline */
	    }
	}
Example #4
0
int main(int argc, char **argv)
{
    bool sending;
    SOCKET *sklist;
    size_t skcount, sksize;
    int exitcode;
    bool errors;
    bool use_subsystem = false;
    bool just_test_share_exists = false;
    enum TriState sanitise_stdout = AUTO, sanitise_stderr = AUTO;
    unsigned long now, next, then;
    const struct BackendVtable *vt;

    dll_hijacking_protection();

    sklist = NULL;
    skcount = sksize = 0;
    /*
     * Initialise port and protocol to sensible defaults. (These
     * will be overridden by more or less anything.)
     */
    default_protocol = PROT_SSH;
    default_port = 22;

    flags = 0;
    cmdline_tooltype |=
        (TOOLTYPE_HOST_ARG |
         TOOLTYPE_HOST_ARG_CAN_BE_SESSION |
         TOOLTYPE_HOST_ARG_PROTOCOL_PREFIX |
         TOOLTYPE_HOST_ARG_FROM_LAUNCHABLE_LOAD);

    /*
     * Process the command line.
     */
    conf = conf_new();
    do_defaults(NULL, conf);
    loaded_session = false;
    default_protocol = conf_get_int(conf, CONF_protocol);
    default_port = conf_get_int(conf, CONF_port);
    errors = false;
    {
	/*
	 * Override the default protocol if PLINK_PROTOCOL is set.
	 */
	char *p = getenv("PLINK_PROTOCOL");
	if (p) {
            const struct BackendVtable *vt = backend_vt_from_name(p);
            if (vt) {
                default_protocol = vt->protocol;
                default_port = vt->default_port;
		conf_set_int(conf, CONF_protocol, default_protocol);
		conf_set_int(conf, CONF_port, default_port);
	    }
	}
    }
    while (--argc) {
	char *p = *++argv;
        int ret = cmdline_process_param(p, (argc > 1 ? argv[1] : NULL),
                                        1, conf);
        if (ret == -2) {
            fprintf(stderr,
                    "plink: option \"%s\" requires an argument\n", p);
            errors = true;
        } else if (ret == 2) {
            --argc, ++argv;
        } else if (ret == 1) {
            continue;
        } else if (!strcmp(p, "-batch")) {
            console_batch_mode = true;
        } else if (!strcmp(p, "-s")) {
            /* Save status to write to conf later. */
            use_subsystem = true;
        } else if (!strcmp(p, "-V") || !strcmp(p, "--version")) {
            version();
        } else if (!strcmp(p, "--help")) {
            usage();
        } else if (!strcmp(p, "-pgpfp")) {
            pgp_fingerprints();
            exit(1);
        } else if (!strcmp(p, "-shareexists")) {
            just_test_share_exists = true;
        } else if (!strcmp(p, "-sanitise-stdout") ||
                   !strcmp(p, "-sanitize-stdout")) {
            sanitise_stdout = FORCE_ON;
        } else if (!strcmp(p, "-no-sanitise-stdout") ||
                   !strcmp(p, "-no-sanitize-stdout")) {
            sanitise_stdout = FORCE_OFF;
        } else if (!strcmp(p, "-sanitise-stderr") ||
                   !strcmp(p, "-sanitize-stderr")) {
            sanitise_stderr = FORCE_ON;
        } else if (!strcmp(p, "-no-sanitise-stderr") ||
                   !strcmp(p, "-no-sanitize-stderr")) {
            sanitise_stderr = FORCE_OFF;
        } else if (!strcmp(p, "-no-antispoof")) {
            console_antispoof_prompt = false;
	} else if (*p != '-') {
            strbuf *cmdbuf = strbuf_new();

            while (argc > 0) {
                if (cmdbuf->len > 0)
                    put_byte(cmdbuf, ' '); /* add space separator */
                put_datapl(cmdbuf, ptrlen_from_asciz(p));
                if (--argc > 0)
                    p = *++argv;
            }

            conf_set_str(conf, CONF_remote_cmd, cmdbuf->s);
            conf_set_str(conf, CONF_remote_cmd2, "");
            conf_set_bool(conf, CONF_nopty, true);  /* command => no tty */

            strbuf_free(cmdbuf);
            break;		       /* done with cmdline */
        } else {
            fprintf(stderr, "plink: unknown option \"%s\"\n", p);
            errors = true;
        }
    }

    if (errors)
	return 1;

    if (!cmdline_host_ok(conf)) {
	usage();
    }

    prepare_session(conf);

    /*
     * Perform command-line overrides on session configuration.
     */
    cmdline_run_saved(conf);

    /*
     * Apply subsystem status.
     */
    if (use_subsystem)
        conf_set_bool(conf, CONF_ssh_subsys, true);

    if (!*conf_get_str(conf, CONF_remote_cmd) &&
	!*conf_get_str(conf, CONF_remote_cmd2) &&
	!*conf_get_str(conf, CONF_ssh_nc_host))
	flags |= FLAG_INTERACTIVE;

    /*
     * Select protocol. This is farmed out into a table in a
     * separate file to enable an ssh-free variant.
     */
    vt = backend_vt_from_proto(conf_get_int(conf, CONF_protocol));
    if (vt == NULL) {
	fprintf(stderr,
		"Internal fault: Unsupported protocol found\n");
	return 1;
    }

    sk_init();
    if (p_WSAEventSelect == NULL) {
	fprintf(stderr, "Plink requires WinSock 2\n");
	return 1;
    }

    /*
     * Plink doesn't provide any way to add forwardings after the
     * connection is set up, so if there are none now, we can safely set
     * the "simple" flag.
     */
    if (conf_get_int(conf, CONF_protocol) == PROT_SSH &&
	!conf_get_bool(conf, CONF_x11_forward) &&
	!conf_get_bool(conf, CONF_agentfwd) &&
	!conf_get_str_nthstrkey(conf, CONF_portfwd, 0))
	conf_set_bool(conf, CONF_ssh_simple, true);

    logctx = log_init(default_logpolicy, conf);

    if (just_test_share_exists) {
        if (!vt->test_for_upstream) {
            fprintf(stderr, "Connection sharing not supported for connection "
                    "type '%s'\n", vt->name);
            return 1;
        }
        if (vt->test_for_upstream(conf_get_str(conf, CONF_host),
                                  conf_get_int(conf, CONF_port), conf))
            return 0;
        else
            return 1;
    }

    if (restricted_acl) {
        lp_eventlog(default_logpolicy, "Running with restricted process ACL");
    }

    /*
     * Start up the connection.
     */
    netevent = CreateEvent(NULL, false, false, NULL);
    {
	const char *error;
	char *realhost;
	/* nodelay is only useful if stdin is a character device (console) */
	bool nodelay = conf_get_bool(conf, CONF_tcp_nodelay) &&
	    (GetFileType(GetStdHandle(STD_INPUT_HANDLE)) == FILE_TYPE_CHAR);

        error = backend_init(vt, plink_seat, &backend, logctx, conf,
                             conf_get_str(conf, CONF_host),
                             conf_get_int(conf, CONF_port),
                             &realhost, nodelay,
                             conf_get_bool(conf, CONF_tcp_keepalives));
	if (error) {
	    fprintf(stderr, "Unable to open connection:\n%s", error);
	    return 1;
	}
	sfree(realhost);
    }

    inhandle = GetStdHandle(STD_INPUT_HANDLE);
    outhandle = GetStdHandle(STD_OUTPUT_HANDLE);
    errhandle = GetStdHandle(STD_ERROR_HANDLE);

    /*
     * Turn off ECHO and LINE input modes. We don't care if this
     * call fails, because we know we aren't necessarily running in
     * a console.
     */
    GetConsoleMode(inhandle, &orig_console_mode);
    SetConsoleMode(inhandle, ENABLE_PROCESSED_INPUT);

    /*
     * Pass the output handles to the handle-handling subsystem.
     * (The input one we leave until we're through the
     * authentication process.)
     */
    stdout_handle = handle_output_new(outhandle, stdouterr_sent, NULL, 0);
    stderr_handle = handle_output_new(errhandle, stdouterr_sent, NULL, 0);
    handle_sink_init(&stdout_hs, stdout_handle);
    handle_sink_init(&stderr_hs, stderr_handle);
    stdout_bs = BinarySink_UPCAST(&stdout_hs);
    stderr_bs = BinarySink_UPCAST(&stderr_hs);

    /*
     * Decide whether to sanitise control sequences out of standard
     * output and standard error.
     *
     * If we weren't given a command-line override, we do this if (a)
     * the fd in question is pointing at a console, and (b) we aren't
     * trying to allocate a terminal as part of the session.
     *
     * (Rationale: the risk of control sequences is that they cause
     * confusion when sent to a local console, so if there isn't one,
     * no problem. Also, if we allocate a remote terminal, then we
     * sent a terminal type, i.e. we told it what kind of escape
     * sequences we _like_, i.e. we were expecting to receive some.)
     */
    if (sanitise_stdout == FORCE_ON ||
        (sanitise_stdout == AUTO && is_console_handle(outhandle) &&
         conf_get_bool(conf, CONF_nopty))) {
        stdout_scc = stripctrl_new(stdout_bs, true, L'\0');
        stdout_bs = BinarySink_UPCAST(stdout_scc);
    }
    if (sanitise_stderr == FORCE_ON ||
        (sanitise_stderr == AUTO && is_console_handle(errhandle) &&
         conf_get_bool(conf, CONF_nopty))) {
        stderr_scc = stripctrl_new(stderr_bs, true, L'\0');
        stderr_bs = BinarySink_UPCAST(stderr_scc);
    }

    main_thread_id = GetCurrentThreadId();

    sending = false;

    now = GETTICKCOUNT();

    while (1) {
	int nhandles;
	HANDLE *handles;	
	int n;
	DWORD ticks;

        if (!sending && backend_sendok(backend)) {
	    stdin_handle = handle_input_new(inhandle, stdin_gotdata, NULL,
					    0);
	    sending = true;
	}

        if (toplevel_callback_pending()) {
            ticks = 0;
            next = now;
        } else if (run_timers(now, &next)) {
	    then = now;
	    now = GETTICKCOUNT();
	    if (now - then > next - then)
		ticks = 0;
	    else
		ticks = next - now;
	} else {
	    ticks = INFINITE;
            /* no need to initialise next here because we can never
             * get WAIT_TIMEOUT */
	}

	handles = handle_get_events(&nhandles);
	handles = sresize(handles, nhandles+1, HANDLE);
	handles[nhandles] = netevent;
	n = MsgWaitForMultipleObjects(nhandles+1, handles, false, ticks,
				      QS_POSTMESSAGE);
	if ((unsigned)(n - WAIT_OBJECT_0) < (unsigned)nhandles) {
	    handle_got_event(handles[n - WAIT_OBJECT_0]);
	} else if (n == WAIT_OBJECT_0 + nhandles) {
	    WSANETWORKEVENTS things;
	    SOCKET socket;
	    int i, socketstate;

	    /*
	     * We must not call select_result() for any socket
	     * until we have finished enumerating within the tree.
	     * This is because select_result() may close the socket
	     * and modify the tree.
	     */
	    /* Count the active sockets. */
	    i = 0;
	    for (socket = first_socket(&socketstate);
		 socket != INVALID_SOCKET;
		 socket = next_socket(&socketstate)) i++;

	    /* Expand the buffer if necessary. */
            sgrowarray(sklist, sksize, i);

	    /* Retrieve the sockets into sklist. */
	    skcount = 0;
	    for (socket = first_socket(&socketstate);
		 socket != INVALID_SOCKET;
		 socket = next_socket(&socketstate)) {
		sklist[skcount++] = socket;
	    }

	    /* Now we're done enumerating; go through the list. */
	    for (i = 0; i < skcount; i++) {
		WPARAM wp;
		socket = sklist[i];
		wp = (WPARAM) socket;
		if (!p_WSAEnumNetworkEvents(socket, NULL, &things)) {
                    static const struct { int bit, mask; } eventtypes[] = {
                        {FD_CONNECT_BIT, FD_CONNECT},
                        {FD_READ_BIT, FD_READ},
                        {FD_CLOSE_BIT, FD_CLOSE},
                        {FD_OOB_BIT, FD_OOB},
                        {FD_WRITE_BIT, FD_WRITE},
                        {FD_ACCEPT_BIT, FD_ACCEPT},
                    };
                    int e;

		    noise_ultralight(NOISE_SOURCE_IOID, socket);

                    for (e = 0; e < lenof(eventtypes); e++)
                        if (things.lNetworkEvents & eventtypes[e].mask) {
                            LPARAM lp;
                            int err = things.iErrorCode[eventtypes[e].bit];
                            lp = WSAMAKESELECTREPLY(eventtypes[e].mask, err);
                            select_result(wp, lp);
                        }
		}
	    }
	} else if (n == WAIT_OBJECT_0 + nhandles + 1) {
	    MSG msg;
	    while (PeekMessage(&msg, INVALID_HANDLE_VALUE,
			       WM_AGENT_CALLBACK, WM_AGENT_CALLBACK,
			       PM_REMOVE)) {
		struct agent_callback *c = (struct agent_callback *)msg.lParam;
		c->callback(c->callback_ctx, c->data, c->len);
		sfree(c);
	    }
	}

        run_toplevel_callbacks();

	if (n == WAIT_TIMEOUT) {
	    now = next;
	} else {
	    now = GETTICKCOUNT();
	}

	sfree(handles);

	if (sending)
            handle_unthrottle(stdin_handle, backend_sendbuffer(backend));

        if (!backend_connected(backend) &&
	    handle_backlog(stdout_handle) + handle_backlog(stderr_handle) == 0)
	    break;		       /* we closed the connection */
    }
    exitcode = backend_exitcode(backend);
    if (exitcode < 0) {
	fprintf(stderr, "Remote process exit code unavailable\n");
	exitcode = 1;		       /* this is an error condition */
    }
    cleanup_exit(exitcode);
    return 0;			       /* placate compiler warning */
}
Example #5
0
int do_cmdline(int argc, char **argv, int do_everything, int *allow_launch,
               struct gui_data *inst, Conf *conf)
{
    int err = 0;
    char *val;

    /*
     * Macros to make argument handling easier. Note that because
     * they need to call `continue', they cannot be contained in
     * the usual do {...} while (0) wrapper to make them
     * syntactically single statements; hence it is not legal to
     * use one of these macros as an unbraced statement between
     * `if' and `else'.
     */
#define EXPECTS_ARG { \
    if (--argc <= 0) { \
	err = 1; \
	fprintf(stderr, "%s: %s expects an argument\n", appname, p); \
        continue; \
    } else \
	val = *++argv; \
}
#define SECOND_PASS_ONLY { if (!do_everything) continue; }

    while (--argc > 0) {
	char *p = *++argv;
        int ret;

	/*
	 * Shameless cheating. Debian requires all X terminal
	 * emulators to support `-T title'; but
	 * cmdline_process_param will eat -T (it means no-pty) and
	 * complain that pterm doesn't support it. So, in pterm
	 * only, we convert -T into -title.
	 */
	if ((cmdline_tooltype & TOOLTYPE_NONNETWORK) &&
	    !strcmp(p, "-T"))
	    p = (char*)"-title";

        ret = cmdline_process_param(p, (argc > 1 ? argv[1] : NULL),
                                    do_everything ? 1 : -1, conf);

	if (ret == -2) {
	    cmdline_error("option \"%s\" requires an argument",p);
	} else if (ret == 2) {
	    --argc, ++argv;            /* skip next argument */
            continue;
	} else if (ret == 1) {
            continue;
        }

	if (!strcmp(p, "-fn") || !strcmp(p, "-font")) {
        FontSpec *fs;
	    EXPECTS_ARG;
        SECOND_PASS_ONLY;
        fs = fontspec_new(val);
        conf_set_fontspec(conf, CONF_font, fs);
        fontspec_free(fs);
	} else if (!strcmp(p, "-fb")) {
        FontSpec *fs;
	    EXPECTS_ARG;
	    SECOND_PASS_ONLY;
        fs = fontspec_new(val);
        conf_set_fontspec(conf, CONF_boldfont, fs);
        fontspec_free(fs);
	} else if (!strcmp(p, "-fw")) {
        FontSpec *fs;
	    EXPECTS_ARG;
	    SECOND_PASS_ONLY;
        fs = fontspec_new(val);
        conf_set_fontspec(conf, CONF_widefont, fs);
        fontspec_free(fs);
	} else if (!strcmp(p, "-fwb")) {
        FontSpec *fs;
	    EXPECTS_ARG;
	    SECOND_PASS_ONLY;
        fs = fontspec_new(val);
        conf_set_fontspec(conf, CONF_wideboldfont, fs);
        fontspec_free(fs);
	} else if (!strcmp(p, "-cs")) {
	    EXPECTS_ARG;
	    SECOND_PASS_ONLY;
        conf_set_str(conf, CONF_line_codepage, val);

	} else if (!strcmp(p, "-geometry")) {
#ifdef Q_OS_UNIX
	    int flags, x, y;
	    unsigned int w, h;
	    EXPECTS_ARG;
	    SECOND_PASS_ONLY;

	    flags = XParseGeometry(val, &x, &y, &w, &h);
	    if (flags & WidthValue)
            conf_set_int(conf, CONF_width, w);
        if (flags & HeightValue)
            conf_set_int(conf, CONF_height, h);

            if (flags & (XValue | YValue)) {
                inst->xpos = x;
                inst->ypos = y;
                inst->gotpos = TRUE;
                inst->gravity = ((flags & XNegative ? 1 : 0) |
                                 (flags & YNegative ? 2 : 0));
            }
#endif
	} else if (!strcmp(p, "-sl")) {
	    EXPECTS_ARG;
	    SECOND_PASS_ONLY;
        conf_set_int(conf, CONF_savelines, atoi(val));

	} /*else if (!strcmp(p, "-fg") || !strcmp(p, "-bg") ||
		   !strcmp(p, "-bfg") || !strcmp(p, "-bbg") ||
		   !strcmp(p, "-cfg") || !strcmp(p, "-cbg")) {
	    GdkColor col;

	    EXPECTS_ARG;
	    SECOND_PASS_ONLY;
	    if (!gdk_color_parse(val, &col)) {
		err = 1;
		fprintf(stderr, "%s: unable to parse colour \"%s\"\n",
                        appname, val);
	    } else {
		int index;
		index = (!strcmp(p, "-fg") ? 0 :
			 !strcmp(p, "-bg") ? 2 :
			 !strcmp(p, "-bfg") ? 1 :
			 !strcmp(p, "-bbg") ? 3 :
			 !strcmp(p, "-cfg") ? 4 :
			 !strcmp(p, "-cbg") ? 5 : -1);
		assert(index != -1);
		cfg->colours[index][0] = col.red / 256;
		cfg->colours[index][1] = col.green / 256;
		cfg->colours[index][2] = col.blue / 256;
	    }

	} */else if (use_pty_argv && !strcmp(p, "-e")) {
	    /* This option swallows all further arguments. */
	    if (!do_everything)
		break;

	    if (--argc > 0) {
		int i;
		pty_argv = snewn(argc+1, char *);
		++argv;
		for (i = 0; i < argc; i++)
		    pty_argv[i] = argv[i];
		pty_argv[argc] = NULL;
		break;		       /* finished command-line processing */
	    } else
		err = 1, fprintf(stderr, "%s: -e expects an argument\n",
                                 appname);

	} else if (!strcmp(p, "-title")) {
Example #6
0
int main(int argc, char **argv)
{
    int sending;
    int portnumber = -1;
    int *fdlist;
    int fd;
    int i, fdcount, fdsize, fdstate;
    int connopen;
    int exitcode;
    int errors;
    int use_subsystem = 0;
    int got_host = FALSE;
    long now;

/* LLNL Customize */
    qtssh_init(&argc, argv, &cfg);

    fdlist = NULL;
    fdcount = fdsize = 0;
    /*
     * Initialise port and protocol to sensible defaults. (These
     * will be overridden by more or less anything.)
     */
    default_protocol = PROT_SSH;
    default_port = 22;

    flags = FLAG_STDERR | FLAG_STDERR_TTY;

    stderr_tty_init();
    /*
     * Process the command line.
     */
    do_defaults(NULL, &cfg);
    loaded_session = FALSE;
    default_protocol = cfg.protocol;
    default_port = cfg.port;
    errors = 0;
    {
	/*
	 * Override the default protocol if PLINK_PROTOCOL is set.
	 */
	char *p = getenv("PLINK_PROTOCOL");
	if (p) {
	    const Backend *b = backend_from_name(p);
	    if (b) {
		default_protocol = cfg.protocol = b->protocol;
		default_port = cfg.port = b->default_port;
	    }
	}
    }
    while (--argc) {
	char *p = *++argv;
	if (*p == '-') {
	    int ret = cmdline_process_param(p, (argc > 1 ? argv[1] : NULL),
					    1, &cfg);
	    if (ret == -2) {
		fprintf(stderr,
			"plink: option \"%s\" requires an argument\n", p);
		errors = 1;
	    } else if (ret == 2) {
		--argc, ++argv;
	    } else if (ret == 1) {
		continue;
	    } else if (!strcmp(p, "-batch")) {
		console_batch_mode = 1;
	    } else if (!strcmp(p, "-s")) {
                /* Save status to write to cfg later. */
		use_subsystem = 1;
	    } else if (!strcmp(p, "-V")) {
                version();
            } else if (!strcmp(p, "-pgpfp")) {
                pgp_fingerprints();
                exit(1);
	    } else if (!strcmp(p, "-o")) {
                if (argc <= 1) {
                    fprintf(stderr,
                            "plink: option \"-o\" requires an argument\n");
		    errors = 1;
		} else {
                    --argc;
		    provide_xrm_string(*++argv);
		}
            } else if (!strcmp(p, "-log")) {
                cfg.logtype = LGTYP_PACKETS;
                cfg.logxfovr = LGXF_APN;
                if (argc <= 1) {
                    fprintf(stderr,
                            "plink: option \"-log\" requires an argument\n");
		    errors = 1;
		} else {
                    --argc;
		    strcpy(cfg.logfilename.path, *++argv);
		}
	    } else {
		fprintf(stderr, "plink: unknown option \"%s\"\n", p);
		errors = 1;
	    }
	} else if (*p) {
	    if (!cfg_launchable(&cfg) || !(got_host || loaded_session)) {
		char *q = p;

		/*
		 * If the hostname starts with "telnet:", set the
		 * protocol to Telnet and process the string as a
		 * Telnet URL.
		 */
		if (!strncmp(q, "telnet:", 7)) {
		    char c;

		    q += 7;
		    if (q[0] == '/' && q[1] == '/')
			q += 2;
		    cfg.protocol = PROT_TELNET;
		    p = q;
		    while (*p && *p != ':' && *p != '/')
			p++;
		    c = *p;
		    if (*p)
			*p++ = '\0';
		    if (c == ':')
			cfg.port = atoi(p);
		    else
			cfg.port = -1;
		    strncpy(cfg.host, q, sizeof(cfg.host) - 1);
		    cfg.host[sizeof(cfg.host) - 1] = '\0';
		    got_host = TRUE;
		} else {
		    char *r, *user, *host;
		    /*
		     * Before we process the [[email protected]]host string, we
		     * first check for the presence of a protocol
		     * prefix (a protocol name followed by ",").
		     */
		    r = strchr(p, ',');
		    if (r) {
			const Backend *b;
			*r = '\0';
			b = backend_from_name(p);
			if (b) {
			    default_protocol = cfg.protocol = b->protocol;
			    portnumber = b->default_port;
			}
			p = r + 1;
		    }

		    /*
		     * A nonzero length string followed by an @ is treated
		     * as a username. (We discount an _initial_ @.) The
		     * rest of the string (or the whole string if no @)
		     * is treated as a session name and/or hostname.
		     */
		    r = strrchr(p, '@');
		    if (r == p)
			p++, r = NULL; /* discount initial @ */
		    if (r) {
			*r++ = '\0';
			user = p, host = r;
		    } else {
			user = NULL, host = p;
		    }

		    /*
		     * Now attempt to load a saved session with the
		     * same name as the hostname.
		     */
		    {
			Config cfg2;
			do_defaults(host, &cfg2);
			if (loaded_session || !cfg_launchable(&cfg2)) {
			    /* No settings for this host; use defaults */
			    /* (or session was already loaded with -load) */
			    strncpy(cfg.host, host, sizeof(cfg.host) - 1);
			    cfg.host[sizeof(cfg.host) - 1] = '\0';
			    cfg.port = default_port;
			    got_host = TRUE;
			} else {
			    cfg = cfg2;
			    loaded_session = TRUE;
			}
		    }

		    if (user) {
			/* Patch in specified username. */
			strncpy(cfg.username, user,
				sizeof(cfg.username) - 1);
			cfg.username[sizeof(cfg.username) - 1] = '\0';
		    }

		}
	    } else {
		char *command;
		int cmdlen, cmdsize;
		cmdlen = cmdsize = 0;
		command = NULL;

		while (argc) {
		    while (*p) {
			if (cmdlen >= cmdsize) {
			    cmdsize = cmdlen + 512;
			    command = sresize(command, cmdsize, char);
			}
			command[cmdlen++]=*p++;
		    }
		    if (cmdlen >= cmdsize) {
			cmdsize = cmdlen + 512;
			command = sresize(command, cmdsize, char);
		    }
		    command[cmdlen++]=' '; /* always add trailing space */
		    if (--argc) p = *++argv;
		}
		if (cmdlen) command[--cmdlen]='\0';
				       /* change trailing blank to NUL */
		cfg.remote_cmd_ptr = command;
		cfg.remote_cmd_ptr2 = NULL;
		cfg.nopty = TRUE;      /* command => no terminal */

		break;		       /* done with cmdline */
	    }
	}
Example #7
0
int main(int argc, char **argv)
{
    WSAEVENT stdinevent, stdoutevent, stderrevent;
    HANDLE handles[4];
    DWORD in_threadid, out_threadid, err_threadid;
    struct input_data idata;
    int reading;
    int sending;
    int portnumber = -1;
    SOCKET *sklist;
    int skcount, sksize;
    int connopen;
    int exitcode;
    int errors;
    int use_subsystem = 0;

    ssh_get_line = console_get_line;

    sklist = NULL;
    skcount = sksize = 0;
    /*
     * Initialise port and protocol to sensible defaults. (These
     * will be overridden by more or less anything.)
     */
    default_protocol = PROT_SSH;
    default_port = 22;

    flags = FLAG_STDERR;
    /*
     * Process the command line.
     */
    do_defaults(NULL, &cfg);
    loaded_session = FALSE;
    default_protocol = cfg.protocol;
    default_port = cfg.port;
    errors = 0;
    {
        /*
         * Override the default protocol if PLINK_PROTOCOL is set.
         */
        char *p = getenv("PLINK_PROTOCOL");
        int i;
        if (p) {
            for (i = 0; backends[i].backend != NULL; i++) {
                if (!strcmp(backends[i].name, p)) {
                    default_protocol = cfg.protocol = backends[i].protocol;
                    default_port = cfg.port =
                        backends[i].backend->default_port;
                    break;
                }
            }
        }
    }
    while (--argc) {
        char *p = *++argv;
        if (*p == '-') {
            int ret = cmdline_process_param(p, (argc > 1 ? argv[1] : NULL),
                                            1, &cfg);
            if (ret == -2) {
                mboxprintf("TortoisePlink: option \"%s\" requires an argument\n", p);
                errors = 1;
            } else if (ret == 2) {
                --argc, ++argv;
            } else if (ret == 1) {
                continue;
            } else if (!strcmp(p, "-batch")) {
                console_batch_mode = 1;
            } else if (!strcmp(p, "-s")) {
                /* Save status to write to cfg later. */
                use_subsystem = 1;
            } else if (!strcmp(p, "-V")) {
                version();
            } else {
                mboxprintf("TortoisePlink: unknown option \"%s\"\n", p);
                errors = 1;
            }
        } else if (*p) {
            if (!*cfg.host) {
                char *q = p;
                /*
                 * If the hostname starts with "telnet:", set the
                 * protocol to Telnet and process the string as a
                 * Telnet URL.
                 */
                if (!strncmp(q, "telnet:", 7)) {
                    char c;

                    q += 7;
                    if (q[0] == '/' && q[1] == '/')
                        q += 2;
                    cfg.protocol = PROT_TELNET;
                    p = q;
                    while (*p && *p != ':' && *p != '/')
                        p++;
                    c = *p;
                    if (*p)
                        *p++ = '\0';
                    if (c == ':')
                        cfg.port = atoi(p);
                    else
                        cfg.port = -1;
                    strncpy(cfg.host, q, sizeof(cfg.host) - 1);
                    cfg.host[sizeof(cfg.host) - 1] = '\0';
                } else {
                    char *r, *user, *host;
                    /*
                     * Before we process the [[email protected]]host string, we
                     * first check for the presence of a protocol
                     * prefix (a protocol name followed by ",").
                     */
                    r = strchr(p, ',');
                    if (r) {
                        int i, j;
                        for (i = 0; backends[i].backend != NULL; i++) {
                            j = strlen(backends[i].name);
                            if (j == r - p &&
                                !memcmp(backends[i].name, p, j)) {
                                default_protocol = cfg.protocol =
                                    backends[i].protocol;
                                portnumber =
                                    backends[i].backend->default_port;
                                p = r + 1;
                                break;
                            }
                        }
                    }

                    /*
                     * A nonzero length string followed by an @ is treated
                     * as a username. (We discount an _initial_ @.) The
                     * rest of the string (or the whole string if no @)
                     * is treated as a session name and/or hostname.
                     */
                    r = strrchr(p, '@');
                    if (r == p)
                        p++, r = NULL; /* discount initial @ */
                    if (r) {
                        *r++ = '\0';
                        user = p, host = r;
                    } else {
                        user = NULL, host = p;
                    }

                    /*
                     * Now attempt to load a saved session with the
                     * same name as the hostname.
                     */
                    {
                        Config cfg2;
                        do_defaults(host, &cfg2);
                        if (loaded_session || cfg2.host[0] == '\0') {
                            /* No settings for this host; use defaults */
                            /* (or session was already loaded with -load) */
                            strncpy(cfg.host, host, sizeof(cfg.host) - 1);
                            cfg.host[sizeof(cfg.host) - 1] = '\0';
                            cfg.port = default_port;
                        } else {
                            cfg = cfg2;
                            /* Ick: patch up internal pointer after copy */
                            cfg.remote_cmd_ptr = cfg.remote_cmd;
                        }
                    }

                    if (user) {
                        /* Patch in specified username. */
                        strncpy(cfg.username, user,
                                sizeof(cfg.username) - 1);
                        cfg.username[sizeof(cfg.username) - 1] = '\0';
                    }

                }
            } else {
                char *command;
                int cmdlen, cmdsize;
                cmdlen = cmdsize = 0;
                command = NULL;

                while (argc) {
                    while (*p) {
                        if (cmdlen >= cmdsize) {
                            cmdsize = cmdlen + 512;
                            command = sresize(command, cmdsize, char);
                        }
                        command[cmdlen++]=*p++;
                    }
                    if (cmdlen >= cmdsize) {
                        cmdsize = cmdlen + 512;
                        command = sresize(command, cmdsize, char);
                    }
                    command[cmdlen++]=' '; /* always add trailing space */
                    if (--argc) p = *++argv;
                }
                if (cmdlen) command[--cmdlen]='\0';
                                       /* change trailing blank to NUL */
                cfg.remote_cmd_ptr = command;
                cfg.remote_cmd_ptr2 = NULL;
                cfg.nopty = TRUE;      /* command => no terminal */

                break;                 /* done with cmdline */
            }
        }
Example #8
0
int cmdline_process_param(const char *p, char *value,
                          int need_save, Conf *conf)
{
    int ret = 0;

    if (p[0] != '-') {
        if (need_save < 0)
            return 0;

        /*
         * Common handling for the tools whose initial command-line
         * arguments specify a hostname to connect to, i.e. PuTTY and
         * Plink. Doesn't count the file transfer tools, because their
         * hostname specification appears as part of a more
         * complicated scheme.
         */

        if ((cmdline_tooltype & TOOLTYPE_HOST_ARG) &&
            !seen_hostname_argument &&
            (!(cmdline_tooltype & TOOLTYPE_HOST_ARG_FROM_LAUNCHABLE_LOAD) ||
             !loaded_session || !conf_launchable(conf))) {
            /*
             * Treat this argument as a host name, if we have not yet
             * seen a host name argument or -load.
             *
             * Exception, in some tools (Plink): if we have seen -load
             * but it didn't create a launchable session, then we
             * still accept a hostname argument following that -load.
             * This allows you to make saved sessions that configure
             * lots of other stuff (colour schemes, terminal settings
             * etc) and then say 'putty -load sessionname hostname'.
             *
             * Also, we carefully _don't_ test conf for launchability
             * if we haven't been explicitly told to load a session
             * (otherwise saving a host name into Default Settings
             * would cause 'putty' on its own to immediately launch
             * the default session and never be able to do anything
             * else).
             */
            if (!strncmp(p, "telnet:", 7)) {
                /*
                 * If the argument starts with "telnet:", set the
                 * protocol to Telnet and process the string as a
                 * Telnet URL.
                 */

                /*
                 * Skip the "telnet:" or "telnet://" prefix.
                 */
                p += 7;
                if (p[0] == '/' && p[1] == '/')
                    p += 2;
                conf_set_int(conf, CONF_protocol, PROT_TELNET);

                /*
                 * The next thing we expect is a host name.
                 */
                {
                    const char *host = p;
                    char *buf;

                    p += host_strcspn(p, ":/");
                    buf = dupprintf("%.*s", (int)(p - host), host);
                    conf_set_str(conf, CONF_host, buf);
                    sfree(buf);
                    seen_hostname_argument = true;
                }

                /*
                 * If the host name is followed by a colon, then
                 * expect a port number after it.
                 */
                if (*p == ':') {
                    p++;

                    conf_set_int(conf, CONF_port, atoi(p));
                    /*
                     * Set the flag that will stop us from treating
                     * the next argument as a separate port; this one
                     * counts as explicitly provided.
                     */
                    seen_port_argument = true;
                } else {
                    conf_set_int(conf, CONF_port, -1);
                }
            } else {
                char *user = NULL, *hostname = NULL;
                const char *hostname_after_user;
                int port_override = -1;
                size_t len;

                /*
                 * Otherwise, treat it as a bare host name.
                 */

                if (cmdline_tooltype & TOOLTYPE_HOST_ARG_PROTOCOL_PREFIX) {
                    /*
                     * Here Plink checks for a comma-separated
                     * protocol prefix, e.g. 'ssh,hostname' or
                     * 'ssh,[email protected]'.
                     *
                     * I'm not entirely sure why; this behaviour dates
                     * from 2000 and isn't explained. But I _think_ it
                     * has to do with CVS transport or similar use
                     * cases, in which the end user invokes the SSH
                     * client indirectly, via some means that only
                     * lets them pass a single string argument, and it
                     * was occasionally useful to shoehorn the choice
                     * of protocol into that argument.
                     */
                    const char *comma = strchr(p, ',');
                    if (comma) {
                        char *prefix = dupprintf("%.*s", (int)(comma - p), p);
                        const struct BackendVtable *vt =
                            backend_vt_from_name(prefix);

                        if (vt) {
                            default_protocol = vt->protocol;
                            conf_set_int(conf, CONF_protocol,
                                         default_protocol);
                            port_override = vt->default_port;
                        } else {
                            cmdline_error("unrecognised protocol prefix '%s'",
                                          prefix);
                        }

                        sfree(prefix);
                        p = comma + 1;
                    }
                }

                hostname_after_user = p;
                if (cmdline_tooltype & TOOLTYPE_HOST_ARG_CAN_BE_SESSION) {
                    /*
                     * If the hostname argument can also be a saved
                     * session (see below), then here we also check
                     * for a [email protected] prefix, which will override the
                     * username from the saved session.
                     *
                     * (If the hostname argument _isn't_ a saved
                     * session, we don't do this.)
                     */
                    const char *at = strrchr(p, '@');
                    if (at) {
                        user = dupprintf("%.*s", (int)(at - p), p);
                        hostname_after_user = at + 1;
                    }
                }

                /*
                 * Write the whole hostname argument (minus only that
                 * optional protocol prefix) into the existing Conf,
                 * for tools that don't treat it as a saved session
                 * and as a fallback for those that do.
                 */
                hostname = dupstr(p + strspn(p, " \t"));
                len = strlen(hostname);
                while (len > 0 && (hostname[len-1] == ' ' ||
                                   hostname[len-1] == '\t'))
                    hostname[--len] = '\0';
                seen_hostname_argument = true;
                conf_set_str(conf, CONF_host, hostname);

                if ((cmdline_tooltype & TOOLTYPE_HOST_ARG_CAN_BE_SESSION) &&
                    !loaded_session) {
                    /*
                     * For some tools, we equivocate between a
		     * hostname argument and an argument naming a
		     * saved session. Here we attempt to load a
		     * session with the specified name, and if that
		     * session exists and is launchable, we overwrite
		     * the entire Conf with it.
                     *
                     * We skip this check if a -load option has
                     * already happened, so that
                     *
                     *   plink -load non-launchable-session hostname
                     *
                     * will treat 'hostname' as a hostname _even_ if a
                     * saved session called 'hostname' exists. (This
                     * doesn't lose any functionality someone could
                     * have needed, because if 'hostname' did cause a
                     * session to be loaded, then it would overwrite
                     * everything from the previously loaded session.
                     * So if that was the behaviour someone wanted,
                     * then they could get it by leaving off the
                     * -load completely.)
		     */
                    Conf *conf2 = conf_new();
                    if (do_defaults(hostname_after_user, conf2) &&
                        conf_launchable(conf2)) {
                        conf_copy_into(conf, conf2);
                        loaded_session = true;
                        /* And override the username if one was given. */
                        if (user)
                            conf_set_str(conf, CONF_username, user);
                    }
                    conf_free(conf2);
                }

                sfree(hostname);
                sfree(user);

                if (port_override >= 0)
                    conf_set_int(conf, CONF_port, port_override);
            }

            return 1;
        } else if ((cmdline_tooltype & TOOLTYPE_PORT_ARG) &&
                   !seen_port_argument) {
            /*
             * If we've already got a host name from the command line
             * (either as a hostname argument or a qualifying -load),
             * but not a port number, then treat the next argument as
             * a port number.
             *
             * We handle this by calling ourself recursively to
             * pretend we received a -P argument, so that it will be
             * deferred until it's a good moment to run it.
             */
            char *dup = dupstr(p);     /* 'value' is not a const char * */
            int retd = cmdline_process_param("-P", dup, 1, conf);
            sfree(dup);
            assert(retd == 2);
            seen_port_argument = true;
            return 1;
        } else {
            /*
             * Refuse to recognise this argument, and give it back to
             * the tool's own command-line processing.
             */
            return 0;
        }
    }

#ifdef PUTTYNG
	if (!stricmp(p, "-hwndparent")) {
		RETURN(2);
		hwnd_parent = atoi(value);
		return 2;
	}
#endif

    if (!strcmp(p, "-load")) {
	RETURN(2);
	/* This parameter must be processed immediately rather than being
	 * saved. */
	do_defaults(value, conf);
	loaded_session = true;
	cmdline_session_name = dupstr(value);
	return 2;
    }
    if (!strcmp(p, "-ssh")) {
	RETURN(1);
	UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
	SAVEABLE(0);
	default_protocol = PROT_SSH;
	default_port = 22;
	conf_set_int(conf, CONF_protocol, default_protocol);
	conf_set_int(conf, CONF_port, default_port);
	return 1;
    }
    if (!strcmp(p, "-telnet")) {
	RETURN(1);
	UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
	SAVEABLE(0);
	default_protocol = PROT_TELNET;
	default_port = 23;
	conf_set_int(conf, CONF_protocol, default_protocol);
	conf_set_int(conf, CONF_port, default_port);
	return 1;
    }
    if (!strcmp(p, "-rlogin")) {
	RETURN(1);
	UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
	SAVEABLE(0);
	default_protocol = PROT_RLOGIN;
	default_port = 513;
	conf_set_int(conf, CONF_protocol, default_protocol);
	conf_set_int(conf, CONF_port, default_port);
	return 1;
    }
    if (!strcmp(p, "-raw")) {
	RETURN(1);
	UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
	SAVEABLE(0);
	default_protocol = PROT_RAW;
	conf_set_int(conf, CONF_protocol, default_protocol);
    }
    if (!strcmp(p, "-serial")) {
	RETURN(1);
	/* Serial is not NONNETWORK in an odd sense of the word */
	UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
	SAVEABLE(0);
	default_protocol = PROT_SERIAL;
	conf_set_int(conf, CONF_protocol, default_protocol);
	/* The host parameter will already be loaded into CONF_host,
	 * so copy it across */
	conf_set_str(conf, CONF_serline, conf_get_str(conf, CONF_host));
    }
    if (!strcmp(p, "-v")) {
	RETURN(1);
	flags |= FLAG_VERBOSE;
    }
    if (!strcmp(p, "-l")) {
	RETURN(2);
	UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);
	SAVEABLE(0);
	conf_set_str(conf, CONF_username, value);
    }
    if (!strcmp(p, "-loghost")) {
	RETURN(2);
	UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);
	SAVEABLE(0);
	conf_set_str(conf, CONF_loghost, value);
    }
    if (!strcmp(p, "-hostkey")) {
        char *dup;
	RETURN(2);
	UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);
	SAVEABLE(0);
        dup = dupstr(value);
        if (!validate_manual_hostkey(dup)) {
            cmdline_error("'%s' is not a valid format for a manual host "
                          "key specification", value);
            sfree(dup);
            return ret;
        }
	conf_set_str_str(conf, CONF_ssh_manual_hostkeys, dup, "");
        sfree(dup);
    }
    if ((!strcmp(p, "-L") || !strcmp(p, "-R") || !strcmp(p, "-D"))) {
	char type, *q, *qq, *key, *val;
	RETURN(2);
	UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
	SAVEABLE(0);
	if (strcmp(p, "-D")) {
	    /*
             * For -L or -R forwarding types:
             *
	     * We expect _at least_ two colons in this string. The
	     * possible formats are `sourceport:desthost:destport',
	     * or `sourceip:sourceport:desthost:destport' if you're
	     * specifying a particular loopback address. We need to
	     * replace the one between source and dest with a \t;
	     * this means we must find the second-to-last colon in
	     * the string.
	     *
	     * (This looks like a foolish way of doing it given the
	     * existence of strrchr, but it's more efficient than
	     * two strrchrs - not to mention that the second strrchr
	     * would require us to modify the input string!)
	     */

            type = p[1];               /* 'L' or 'R' */

	    q = qq = host_strchr(value, ':');
	    while (qq) {
		char *qqq = host_strchr(qq+1, ':');
		if (qqq)
		    q = qq;
		qq = qqq;
	    }

	    if (!q) {
		cmdline_error("-%c expects at least two colons in its"
			      " argument", type);
		return ret;
	    }

	    key = dupprintf("%c%.*s", type, (int)(q - value), value);
	    val = dupstr(q+1);
	} else {
            /*
             * Dynamic port forwardings are entered under the same key
             * as if they were local (because they occupy the same
             * port space - a local and a dynamic forwarding on the
             * same local port are mutually exclusive), with the
             * special value "D" (which can be distinguished from
             * anything in the ordinary -L case by containing no
             * colon).
             */
	    key = dupprintf("L%s", value);
	    val = dupstr("D");
	}
	conf_set_str_str(conf, CONF_portfwd, key, val);
	sfree(key);
	sfree(val);
    }
    if ((!strcmp(p, "-nc"))) {
	char *host, *portp;

	RETURN(2);
	UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
	SAVEABLE(0);

	portp = host_strchr(value, ':');
	if (!portp) {
	    cmdline_error("-nc expects argument of form 'host:port'");
	    return ret;
	}

	host = dupprintf("%.*s", (int)(portp - value), value);
	conf_set_str(conf, CONF_ssh_nc_host, host);
	conf_set_int(conf, CONF_ssh_nc_port, atoi(portp + 1));
        sfree(host);
    }
    if (!strcmp(p, "-m")) {
	const char *filename;
	FILE *fp;

	RETURN(2);
	UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
	SAVEABLE(0);

	filename = value;

	fp = fopen(filename, "r");
	if (!fp) {
	    cmdline_error("unable to open command file \"%s\"", filename);
	    return ret;
	}
        strbuf *command = strbuf_new();
        char readbuf[4096];
	while (1) {
            size_t nread = fread(readbuf, 1, sizeof(readbuf), fp);
            if (nread == 0)
                break;
            put_data(command, readbuf, nread);
	}
	fclose(fp);
	conf_set_str(conf, CONF_remote_cmd, command->s);
	conf_set_str(conf, CONF_remote_cmd2, "");
	conf_set_bool(conf, CONF_nopty, true);   /* command => no terminal */
	strbuf_free(command);
    }
    if (!strcmp(p, "-P")) {
	RETURN(2);
	UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);
	SAVEABLE(1);		       /* lower priority than -ssh,-telnet */
	conf_set_int(conf, CONF_port, atoi(value));
    }
    if (!strcmp(p, "-pw")) {
	RETURN(2);
	UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);
	SAVEABLE(1);
	/* We delay evaluating this until after the protocol is decided,
	 * so that we can warn if it's of no use with the selected protocol */
	if (conf_get_int(conf, CONF_protocol) != PROT_SSH)
	    cmdline_error("the -pw option can only be used with the "
			  "SSH protocol");
	else {
	    cmdline_password = dupstr(value);
	    /* Assuming that `value' is directly from argv, make a good faith
	     * attempt to trample it, to stop it showing up in `ps' output
	     * on Unix-like systems. Not guaranteed, of course. */
	    smemclr(value, strlen(value));
	}
    }

    if (!strcmp(p, "-agent") || !strcmp(p, "-pagent") ||
	!strcmp(p, "-pageant")) {
	RETURN(1);
	UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);
	SAVEABLE(0);
	conf_set_bool(conf, CONF_tryagent, true);
    }
    if (!strcmp(p, "-noagent") || !strcmp(p, "-nopagent") ||
	!strcmp(p, "-nopageant")) {
	RETURN(1);
	UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);
	SAVEABLE(0);
	conf_set_bool(conf, CONF_tryagent, false);
    }
    if (!strcmp(p, "-share")) {
	RETURN(1);
	UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);
	SAVEABLE(0);
	conf_set_bool(conf, CONF_ssh_connection_sharing, true);
    }
    if (!strcmp(p, "-noshare")) {
	RETURN(1);
	UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);
	SAVEABLE(0);
	conf_set_bool(conf, CONF_ssh_connection_sharing, false);
    }
    if (!strcmp(p, "-A")) {
	RETURN(1);
	UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
	SAVEABLE(0);
	conf_set_bool(conf, CONF_agentfwd, true);
    }
    if (!strcmp(p, "-a")) {
	RETURN(1);
	UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
	SAVEABLE(0);
	conf_set_bool(conf, CONF_agentfwd, false);
    }

    if (!strcmp(p, "-X")) {
	RETURN(1);
	UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
	SAVEABLE(0);
	conf_set_bool(conf, CONF_x11_forward, true);
    }
    if (!strcmp(p, "-x")) {
	RETURN(1);
	UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
	SAVEABLE(0);
	conf_set_bool(conf, CONF_x11_forward, false);
    }

    if (!strcmp(p, "-t")) {
	RETURN(1);
	UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
	SAVEABLE(1);	/* lower priority than -m */
	conf_set_bool(conf, CONF_nopty, false);
    }
    if (!strcmp(p, "-T")) {
	RETURN(1);
	UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
	SAVEABLE(1);
	conf_set_bool(conf, CONF_nopty, true);
    }

    if (!strcmp(p, "-N")) {
	RETURN(1);
	UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
	SAVEABLE(0);
	conf_set_bool(conf, CONF_ssh_no_shell, true);
    }

    if (!strcmp(p, "-C")) {
	RETURN(1);
	UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);
	SAVEABLE(0);
	conf_set_bool(conf, CONF_compression, true);
    }

    if (!strcmp(p, "-1")) {
	RETURN(1);
	UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);
	SAVEABLE(0);
	conf_set_int(conf, CONF_sshprot, 0);   /* ssh protocol 1 only */
    }
    if (!strcmp(p, "-2")) {
	RETURN(1);
	UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);
	SAVEABLE(0);
	conf_set_int(conf, CONF_sshprot, 3);   /* ssh protocol 2 only */
    }

    if (!strcmp(p, "-i")) {
	Filename *fn;
	RETURN(2);
	UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);
	SAVEABLE(0);
	fn = filename_from_str(value);
	conf_set_filename(conf, CONF_keyfile, fn);
        filename_free(fn);
    }

    if (!strcmp(p, "-4") || !strcmp(p, "-ipv4")) {
	RETURN(1);
	SAVEABLE(1);
	conf_set_int(conf, CONF_addressfamily, ADDRTYPE_IPV4);
    }
    if (!strcmp(p, "-6") || !strcmp(p, "-ipv6")) {
	RETURN(1);
	SAVEABLE(1);
	conf_set_int(conf, CONF_addressfamily, ADDRTYPE_IPV6);
    }
    if (!strcmp(p, "-sercfg")) {
	char* nextitem;
	RETURN(2);
	UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
	SAVEABLE(1);
	if (conf_get_int(conf, CONF_protocol) != PROT_SERIAL)
	    cmdline_error("the -sercfg option can only be used with the "
			  "serial protocol");
	/* Value[0] contains one or more , separated values, like 19200,8,n,1,X */
	nextitem = value;
	while (nextitem[0] != '\0') {
	    int length, skip;
	    char *end = strchr(nextitem, ',');
	    if (!end) {
		length = strlen(nextitem);
		skip = 0;
	    } else {
		length = end - nextitem;
		nextitem[length] = '\0';
		skip = 1;
	    }
	    if (length == 1) {
		switch (*nextitem) {
		  case '1':
		  case '2':
		    conf_set_int(conf, CONF_serstopbits, 2 * (*nextitem-'0'));
		    break;

		  case '5':
		  case '6':
		  case '7':
		  case '8':
		  case '9':
		    conf_set_int(conf, CONF_serdatabits, *nextitem-'0');
		    break;

		  case 'n':
		    conf_set_int(conf, CONF_serparity, SER_PAR_NONE);
		    break;
		  case 'o':
		    conf_set_int(conf, CONF_serparity, SER_PAR_ODD);
		    break;
		  case 'e':
		    conf_set_int(conf, CONF_serparity, SER_PAR_EVEN);
		    break;
		  case 'm':
		    conf_set_int(conf, CONF_serparity, SER_PAR_MARK);
		    break;
		  case 's':
		    conf_set_int(conf, CONF_serparity, SER_PAR_SPACE);
		    break;

		  case 'N':
		    conf_set_int(conf, CONF_serflow, SER_FLOW_NONE);
		    break;
		  case 'X':
		    conf_set_int(conf, CONF_serflow, SER_FLOW_XONXOFF);
		    break;
		  case 'R':
		    conf_set_int(conf, CONF_serflow, SER_FLOW_RTSCTS);
		    break;
		  case 'D':
		    conf_set_int(conf, CONF_serflow, SER_FLOW_DSRDTR);
		    break;

		  default:
		    cmdline_error("Unrecognised suboption \"-sercfg %c\"",
				  *nextitem);
		}
	    } else if (length == 3 && !strncmp(nextitem,"1.5",3)) {
		/* Messy special case */
		conf_set_int(conf, CONF_serstopbits, 3);
	    } else {
		int serspeed = atoi(nextitem);
		if (serspeed != 0) {
		    conf_set_int(conf, CONF_serspeed, serspeed);
		} else {
		    cmdline_error("Unrecognised suboption \"-sercfg %s\"",
				  nextitem);
		}
	    }
	    nextitem += length + skip;
	}
    }

    if (!strcmp(p, "-sessionlog")) {
	Filename *fn;
	RETURN(2);
	UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER);
	/* but available even in TOOLTYPE_NONNETWORK, cf pterm "-log" */
	SAVEABLE(0);
	fn = filename_from_str(value);
	conf_set_filename(conf, CONF_logfilename, fn);
	conf_set_int(conf, CONF_logtype, LGTYP_DEBUG);
        filename_free(fn);
    }

    if (!strcmp(p, "-sshlog") ||
        !strcmp(p, "-sshrawlog")) {
	Filename *fn;
	RETURN(2);
	UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);
	SAVEABLE(0);
	fn = filename_from_str(value);
	conf_set_filename(conf, CONF_logfilename, fn);
	conf_set_int(conf, CONF_logtype,
                     !strcmp(p, "-sshlog") ? LGTYP_PACKETS :
                     /* !strcmp(p, "-sshrawlog") ? */ LGTYP_SSHRAW);
        filename_free(fn);
    }

    if (!strcmp(p, "-proxycmd")) {
	RETURN(2);
	UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);
	SAVEABLE(0);
        conf_set_int(conf, CONF_proxy_type, PROXY_CMD);
	conf_set_str(conf, CONF_proxy_telnet_command, value);
    }

#ifdef _WINDOWS
    /*
     * Cross-tool options only available on Windows.
     */
    if (!strcmp(p, "-restrict-acl") || !strcmp(p, "-restrict_acl") ||
        !strcmp(p, "-restrictacl")) {
	RETURN(1);
        restrict_process_acl();
        restricted_acl = true;
    }
#endif

    return ret;			       /* unrecognised */
}
Example #9
0
int main(int argc, char **argv)
{
    bool sending;
    int *fdlist;
    int fd;
    int i, fdstate;
    size_t fdsize;
    int exitcode;
    bool errors;
    enum TriState sanitise_stdout = AUTO, sanitise_stderr = AUTO;
    bool use_subsystem = false;
    bool just_test_share_exists = false;
    unsigned long now;
    struct winsize size;
    const struct BackendVtable *backvt;

    fdlist = NULL;
    fdsize = 0;
    /*
     * Initialise port and protocol to sensible defaults. (These
     * will be overridden by more or less anything.)
     */
    default_protocol = PROT_SSH;
    default_port = 22;

    bufchain_init(&stdout_data);
    bufchain_init(&stderr_data);
    bufchain_sink_init(&stdout_bcs, &stdout_data);
    bufchain_sink_init(&stderr_bcs, &stderr_data);
    stdout_bs = BinarySink_UPCAST(&stdout_bcs);
    stderr_bs = BinarySink_UPCAST(&stderr_bcs);
    outgoingeof = EOF_NO;

    flags = FLAG_STDERR_TTY;
    cmdline_tooltype |=
        (TOOLTYPE_HOST_ARG |
         TOOLTYPE_HOST_ARG_CAN_BE_SESSION |
         TOOLTYPE_HOST_ARG_PROTOCOL_PREFIX |
         TOOLTYPE_HOST_ARG_FROM_LAUNCHABLE_LOAD);

    stderr_tty_init();
    /*
     * Process the command line.
     */
    conf = conf_new();
    do_defaults(NULL, conf);
    loaded_session = false;
    default_protocol = conf_get_int(conf, CONF_protocol);
    default_port = conf_get_int(conf, CONF_port);
    errors = false;
    {
	/*
	 * Override the default protocol if PLINK_PROTOCOL is set.
	 */
	char *p = getenv("PLINK_PROTOCOL");
	if (p) {
            const struct BackendVtable *vt = backend_vt_from_name(p);
            if (vt) {
                default_protocol = vt->protocol;
                default_port = vt->default_port;
		conf_set_int(conf, CONF_protocol, default_protocol);
		conf_set_int(conf, CONF_port, default_port);
	    }
	}
    }
    while (--argc) {
	char *p = *++argv;
        int ret = cmdline_process_param(p, (argc > 1 ? argv[1] : NULL),
                                        1, conf);
        if (ret == -2) {
            fprintf(stderr,
                    "plink: option \"%s\" requires an argument\n", p);
            errors = true;
        } else if (ret == 2) {
            --argc, ++argv;
        } else if (ret == 1) {
            continue;
        } else if (!strcmp(p, "-batch")) {
            console_batch_mode = true;
        } else if (!strcmp(p, "-s")) {
            /* Save status to write to conf later. */
            use_subsystem = true;
        } else if (!strcmp(p, "-V") || !strcmp(p, "--version")) {
            version();
        } else if (!strcmp(p, "--help")) {
            usage();
            exit(0);
        } else if (!strcmp(p, "-pgpfp")) {
            pgp_fingerprints();
            exit(1);
        } else if (!strcmp(p, "-o")) {
            if (argc <= 1) {
                fprintf(stderr,
                        "plink: option \"-o\" requires an argument\n");
                errors = true;
            } else {
                --argc;
                /* Explicitly pass "plink" in place of appname for
                 * error reporting purposes. appname will have been
                 * set by be_foo.c to something more generic, probably
                 * "PuTTY". */
                provide_xrm_string(*++argv, "plink");
            }
        } else if (!strcmp(p, "-shareexists")) {
            just_test_share_exists = true;
        } else if (!strcmp(p, "-fuzznet")) {
            conf_set_int(conf, CONF_proxy_type, PROXY_FUZZ);
            conf_set_str(conf, CONF_proxy_telnet_command, "%host");
        } else if (!strcmp(p, "-sanitise-stdout") ||
                   !strcmp(p, "-sanitize-stdout")) {
            sanitise_stdout = FORCE_ON;
        } else if (!strcmp(p, "-no-sanitise-stdout") ||
                   !strcmp(p, "-no-sanitize-stdout")) {
            sanitise_stdout = FORCE_OFF;
        } else if (!strcmp(p, "-sanitise-stderr") ||
                   !strcmp(p, "-sanitize-stderr")) {
            sanitise_stderr = FORCE_ON;
        } else if (!strcmp(p, "-no-sanitise-stderr") ||
                   !strcmp(p, "-no-sanitize-stderr")) {
            sanitise_stderr = FORCE_OFF;
        } else if (!strcmp(p, "-no-antispoof")) {
            console_antispoof_prompt = false;
	} else if (*p != '-') {
            strbuf *cmdbuf = strbuf_new();

            while (argc > 0) {
                if (cmdbuf->len > 0)
                    put_byte(cmdbuf, ' '); /* add space separator */
                put_datapl(cmdbuf, ptrlen_from_asciz(p));
                if (--argc > 0)
                    p = *++argv;
            }

            conf_set_str(conf, CONF_remote_cmd, cmdbuf->s);
            conf_set_str(conf, CONF_remote_cmd2, "");
            conf_set_bool(conf, CONF_nopty, true);  /* command => no tty */

            strbuf_free(cmdbuf);
            break;		       /* done with cmdline */
        } else {
            fprintf(stderr, "plink: unknown option \"%s\"\n", p);
            errors = true;
	}
    }

    if (errors)
	return 1;

    if (!cmdline_host_ok(conf)) {
	usage();
    }

    prepare_session(conf);

    /*
     * Perform command-line overrides on session configuration.
     */
    cmdline_run_saved(conf);

    /*
     * If we have no better ideas for the remote username, use the local
     * one, as 'ssh' does.
     */
    if (conf_get_str(conf, CONF_username)[0] == '\0') {
	char *user = get_username();
	if (user) {
	    conf_set_str(conf, CONF_username, user);
	    sfree(user);
	}
    }

    /*
     * Apply subsystem status.
     */
    if (use_subsystem)
        conf_set_bool(conf, CONF_ssh_subsys, true);

    if (!*conf_get_str(conf, CONF_remote_cmd) &&
	!*conf_get_str(conf, CONF_remote_cmd2) &&
	!*conf_get_str(conf, CONF_ssh_nc_host))
	flags |= FLAG_INTERACTIVE;

    /*
     * Select protocol. This is farmed out into a table in a
     * separate file to enable an ssh-free variant.
     */
    backvt = backend_vt_from_proto(conf_get_int(conf, CONF_protocol));
    if (!backvt) {
	fprintf(stderr,
		"Internal fault: Unsupported protocol found\n");
	return 1;
    }

    /*
     * Block SIGPIPE, so that we'll get EPIPE individually on
     * particular network connections that go wrong.
     */
    putty_signal(SIGPIPE, SIG_IGN);

    /*
     * Set up the pipe we'll use to tell us about SIGWINCH.
     */
    if (pipe(signalpipe) < 0) {
	perror("pipe");
	exit(1);
    }
    /* We don't want the signal handler to block if the pipe's full. */
    nonblock(signalpipe[0]);
    nonblock(signalpipe[1]);
    cloexec(signalpipe[0]);
    cloexec(signalpipe[1]);
    putty_signal(SIGWINCH, sigwinch);

    /*
     * Now that we've got the SIGWINCH handler installed, try to find
     * out the initial terminal size.
     */
    if (ioctl(STDIN_FILENO, TIOCGWINSZ, &size) >= 0) {
	conf_set_int(conf, CONF_width, size.ws_col);
	conf_set_int(conf, CONF_height, size.ws_row);
    }

    /*
     * Decide whether to sanitise control sequences out of standard
     * output and standard error.
     *
     * If we weren't given a command-line override, we do this if (a)
     * the fd in question is pointing at a terminal, and (b) we aren't
     * trying to allocate a terminal as part of the session.
     *
     * (Rationale: the risk of control sequences is that they cause
     * confusion when sent to a local terminal, so if there isn't one,
     * no problem. Also, if we allocate a remote terminal, then we
     * sent a terminal type, i.e. we told it what kind of escape
     * sequences we _like_, i.e. we were expecting to receive some.)
     */
    if (sanitise_stdout == FORCE_ON ||
        (sanitise_stdout == AUTO && isatty(STDOUT_FILENO) &&
         conf_get_bool(conf, CONF_nopty))) {
        stdout_scc = stripctrl_new(stdout_bs, true, L'\0');
        stdout_bs = BinarySink_UPCAST(stdout_scc);
    }
    if (sanitise_stderr == FORCE_ON ||
        (sanitise_stderr == AUTO && isatty(STDERR_FILENO) &&
         conf_get_bool(conf, CONF_nopty))) {
        stderr_scc = stripctrl_new(stderr_bs, true, L'\0');
        stderr_bs = BinarySink_UPCAST(stderr_scc);
    }

    sk_init();
    uxsel_init();

    /*
     * Plink doesn't provide any way to add forwardings after the
     * connection is set up, so if there are none now, we can safely set
     * the "simple" flag.
     */
    if (conf_get_int(conf, CONF_protocol) == PROT_SSH &&
	!conf_get_bool(conf, CONF_x11_forward) &&
	!conf_get_bool(conf, CONF_agentfwd) &&
	!conf_get_str_nthstrkey(conf, CONF_portfwd, 0))
	conf_set_bool(conf, CONF_ssh_simple, true);

    if (just_test_share_exists) {
        if (!backvt->test_for_upstream) {
            fprintf(stderr, "Connection sharing not supported for connection "
                    "type '%s'\n", backvt->name);
            return 1;
        }
        if (backvt->test_for_upstream(conf_get_str(conf, CONF_host),
                                      conf_get_int(conf, CONF_port), conf))
            return 0;
        else
            return 1;
    }

    /*
     * Start up the connection.
     */
    logctx = log_init(default_logpolicy, conf);
    {
	const char *error;
	char *realhost;
	/* nodelay is only useful if stdin is a terminal device */
	bool nodelay = conf_get_bool(conf, CONF_tcp_nodelay) && isatty(0);

	/* This is a good place for a fuzzer to fork us. */
#ifdef __AFL_HAVE_MANUAL_CONTROL
	__AFL_INIT();
#endif

        error = backend_init(backvt, plink_seat, &backend, logctx, conf,
                             conf_get_str(conf, CONF_host),
                             conf_get_int(conf, CONF_port),
                             &realhost, nodelay,
                             conf_get_bool(conf, CONF_tcp_keepalives));
	if (error) {
	    fprintf(stderr, "Unable to open connection:\n%s\n", error);
	    return 1;
	}
        ldisc_create(conf, NULL, backend, plink_seat);
	sfree(realhost);
    }

    /*
     * Set up the initial console mode. We don't care if this call
     * fails, because we know we aren't necessarily running in a
     * console.
     */
    local_tty = (tcgetattr(STDIN_FILENO, &orig_termios) == 0);
    atexit(cleanup_termios);
    seat_echoedit_update(plink_seat, 1, 1);
    sending = false;
    now = GETTICKCOUNT();

    pollwrapper *pw = pollwrap_new();

    while (1) {
	int rwx;
	int ret;
        unsigned long next;

        pollwrap_clear(pw);

	pollwrap_add_fd_rwx(pw, signalpipe[0], SELECT_R);

	if (!sending &&
            backend_connected(backend) &&
            backend_sendok(backend) &&
            backend_sendbuffer(backend) < MAX_STDIN_BACKLOG) {
	    /* If we're OK to send, then try to read from stdin. */
            pollwrap_add_fd_rwx(pw, STDIN_FILENO, SELECT_R);
	}

	if (bufchain_size(&stdout_data) > 0) {
	    /* If we have data for stdout, try to write to stdout. */
            pollwrap_add_fd_rwx(pw, STDOUT_FILENO, SELECT_W);
	}

	if (bufchain_size(&stderr_data) > 0) {
	    /* If we have data for stderr, try to write to stderr. */
            pollwrap_add_fd_rwx(pw, STDERR_FILENO, SELECT_W);
	}

	/* Count the currently active fds. */
	i = 0;
	for (fd = first_fd(&fdstate, &rwx); fd >= 0;
	     fd = next_fd(&fdstate, &rwx)) i++;

	/* Expand the fdlist buffer if necessary. */
        sgrowarray(fdlist, fdsize, i);

	/*
	 * Add all currently open fds to pw, and store them in fdlist
	 * as well.
	 */
	int fdcount = 0;
	for (fd = first_fd(&fdstate, &rwx); fd >= 0;
	     fd = next_fd(&fdstate, &rwx)) {
	    fdlist[fdcount++] = fd;
            pollwrap_add_fd_rwx(pw, fd, rwx);
	}

        if (toplevel_callback_pending()) {
            ret = pollwrap_poll_instant(pw);
        } else if (run_timers(now, &next)) {
            do {
                unsigned long then;
                long ticks;

		then = now;
		now = GETTICKCOUNT();
		if (now - then > next - then)
		    ticks = 0;
		else
		    ticks = next - now;

                bool overflow = false;
                if (ticks > INT_MAX) {
                    ticks = INT_MAX;
                    overflow = true;
                }

                ret = pollwrap_poll_timeout(pw, ticks);
                if (ret == 0 && !overflow)
                    now = next;
                else
                    now = GETTICKCOUNT();
            } while (ret < 0 && errno == EINTR);
        } else {
            ret = pollwrap_poll_endless(pw);
        }

        if (ret < 0 && errno == EINTR)
            continue;

	if (ret < 0) {
	    perror("poll");
	    exit(1);
	}

	for (i = 0; i < fdcount; i++) {
	    fd = fdlist[i];
            int rwx = pollwrap_get_fd_rwx(pw, fd);
            /*
             * We must process exceptional notifications before
             * ordinary readability ones, or we may go straight
             * past the urgent marker.
             */
	    if (rwx & SELECT_X)
		select_result(fd, SELECT_X);
	    if (rwx & SELECT_R)
		select_result(fd, SELECT_R);
	    if (rwx & SELECT_W)
		select_result(fd, SELECT_W);
	}

	if (pollwrap_check_fd_rwx(pw, signalpipe[0], SELECT_R)) {
	    char c[1];
	    struct winsize size;
	    if (read(signalpipe[0], c, 1) <= 0)
		/* ignore error */;
	    /* ignore its value; it'll be `x' */
	    if (ioctl(STDIN_FILENO, TIOCGWINSZ, (void *)&size) >= 0)
                backend_size(backend, size.ws_col, size.ws_row);
	}

	if (pollwrap_check_fd_rwx(pw, STDIN_FILENO, SELECT_R)) {
	    char buf[4096];
	    int ret;

            if (backend_connected(backend)) {
		ret = read(STDIN_FILENO, buf, sizeof(buf));
                noise_ultralight(NOISE_SOURCE_IOLEN, ret);
		if (ret < 0) {
		    perror("stdin: read");
		    exit(1);
		} else if (ret == 0) {
                    backend_special(backend, SS_EOF, 0);
		    sending = false;   /* send nothing further after this */
		} else {
		    if (local_tty)
			from_tty(buf, ret);
		    else
                        backend_send(backend, buf, ret);
		}
	    }
	}

	if (pollwrap_check_fd_rwx(pw, STDOUT_FILENO, SELECT_W)) {
            backend_unthrottle(backend, try_output(false));
	}

	if (pollwrap_check_fd_rwx(pw, STDERR_FILENO, SELECT_W)) {
            backend_unthrottle(backend, try_output(true));
	}

        run_toplevel_callbacks();

        if (!backend_connected(backend) &&
	    bufchain_size(&stdout_data) == 0 &&
	    bufchain_size(&stderr_data) == 0)
	    break;		       /* we closed the connection */
    }
    exitcode = backend_exitcode(backend);
    if (exitcode < 0) {
	fprintf(stderr, "Remote process exit code unavailable\n");
	exitcode = 1;		       /* this is an error condition */
    }
    cleanup_exit(exitcode);
    return exitcode;		       /* shouldn't happen, but placates gcc */
}
Example #10
0
int main(int argc, char **argv)
{
    int sending;
    int portnumber = -1;
    int *fdlist;
    int fd;
    int i, fdcount, fdsize, fdstate;
    int connopen;
    int exitcode;
    int errors;
    int use_subsystem = 0;
    void *ldisc, *logctx;

    ssh_get_line = console_get_line;

    fdlist = NULL;
    fdcount = fdsize = 0;
    /*
     * Initialise port and protocol to sensible defaults. (These
     * will be overridden by more or less anything.)
     */
    default_protocol = PROT_SSH;
    default_port = 22;

    flags = FLAG_STDERR;
    /*
     * Process the command line.
     */
    do_defaults(NULL, &cfg);
    default_protocol = cfg.protocol;
    default_port = cfg.port;
    errors = 0;
    {
	/*
	 * Override the default protocol if PLINK_PROTOCOL is set.
	 */
	char *p = getenv("PLINK_PROTOCOL");
	int i;
	if (p) {
	    for (i = 0; backends[i].backend != NULL; i++) {
		if (!strcmp(backends[i].name, p)) {
		    default_protocol = cfg.protocol = backends[i].protocol;
		    default_port = cfg.port =
			backends[i].backend->default_port;
		    break;
		}
	    }
	}
    }
    while (--argc) {
	char *p = *++argv;
	if (*p == '-') {
	    int ret = cmdline_process_param(p, (argc > 1 ? argv[1] : NULL),
					    1, &cfg);
	    if (ret == -2) {
		fprintf(stderr,
			"plink: option \"%s\" requires an argument\n", p);
		errors = 1;
	    } else if (ret == 2) {
		--argc, ++argv;
	    } else if (ret == 1) {
		continue;
	    } else if (!strcmp(p, "-batch")) {
		console_batch_mode = 1;
	    } else if (!strcmp(p, "-s")) {
                /* Save status to write to cfg later. */
		use_subsystem = 1;
	    } else if (!strcmp(p, "-o")) {
                if (argc <= 1) {
                    fprintf(stderr,
                            "plink: option \"-o\" requires an argument\n");
		    errors = 1;
		} else {
                    --argc;
		    provide_xrm_string(*++argv);
		}
	    } else {
		fprintf(stderr, "plink: unknown option \"%s\"\n", p);
		errors = 1;
	    }
	} else if (*p) {
	    if (!*cfg.host) {
		char *q = p;

                do_defaults(NULL, &cfg);

		/*
		 * If the hostname starts with "telnet:", set the
		 * protocol to Telnet and process the string as a
		 * Telnet URL.
		 */
		if (!strncmp(q, "telnet:", 7)) {
		    char c;

		    q += 7;
		    if (q[0] == '/' && q[1] == '/')
			q += 2;
		    cfg.protocol = PROT_TELNET;
		    p = q;
		    while (*p && *p != ':' && *p != '/')
			p++;
		    c = *p;
		    if (*p)
			*p++ = '\0';
		    if (c == ':')
			cfg.port = atoi(p);
		    else
			cfg.port = -1;
		    strncpy(cfg.host, q, sizeof(cfg.host) - 1);
		    cfg.host[sizeof(cfg.host) - 1] = '\0';
		} else {
		    char *r;
		    /*
		     * Before we process the [[email protected]]host string, we
		     * first check for the presence of a protocol
		     * prefix (a protocol name followed by ",").
		     */
		    r = strchr(p, ',');
		    if (r) {
			int i, j;
			for (i = 0; backends[i].backend != NULL; i++) {
			    j = strlen(backends[i].name);
			    if (j == r - p &&
				!memcmp(backends[i].name, p, j)) {
				default_protocol = cfg.protocol =
				    backends[i].protocol;
				portnumber =
				    backends[i].backend->default_port;
				p = r + 1;
				break;
			    }
			}
		    }

		    /*
		     * Three cases. Either (a) there's a nonzero
		     * length string followed by an @, in which
		     * case that's user and the remainder is host.
		     * Or (b) there's only one string, not counting
		     * a potential initial @, and it exists in the
		     * saved-sessions database. Or (c) only one
		     * string and it _doesn't_ exist in the
		     * database.
		     */
		    r = strrchr(p, '@');
		    if (r == p)
			p++, r = NULL; /* discount initial @ */
		    if (r == NULL) {
			/*
			 * One string.
			 */
			Config cfg2;
			do_defaults(p, &cfg2);
			if (cfg2.host[0] == '\0') {
			    /* No settings for this host; use defaults */
			    strncpy(cfg.host, p, sizeof(cfg.host) - 1);
			    cfg.host[sizeof(cfg.host) - 1] = '\0';
			    cfg.port = default_port;
			} else {
			    cfg = cfg2;
			    cfg.remote_cmd_ptr = cfg.remote_cmd;
			}
		    } else {
			*r++ = '\0';
			strncpy(cfg.username, p, sizeof(cfg.username) - 1);
			cfg.username[sizeof(cfg.username) - 1] = '\0';
			strncpy(cfg.host, r, sizeof(cfg.host) - 1);
			cfg.host[sizeof(cfg.host) - 1] = '\0';
			cfg.port = default_port;
		    }
		}
	    } else {
		char *command;
		int cmdlen, cmdsize;
		cmdlen = cmdsize = 0;
		command = NULL;

		while (argc) {
		    while (*p) {
			if (cmdlen >= cmdsize) {
			    cmdsize = cmdlen + 512;
			    command = sresize(command, cmdsize, char);
			}
			command[cmdlen++]=*p++;
		    }
		    if (cmdlen >= cmdsize) {
			cmdsize = cmdlen + 512;
			command = sresize(command, cmdsize, char);
		    }
		    command[cmdlen++]=' '; /* always add trailing space */
		    if (--argc) p = *++argv;
		}
		if (cmdlen) command[--cmdlen]='\0';
				       /* change trailing blank to NUL */
		cfg.remote_cmd_ptr = command;
		cfg.remote_cmd_ptr2 = NULL;
		cfg.nopty = TRUE;      /* command => no terminal */

		break;		       /* done with cmdline */
	    }
	}
Example #11
0
int main(int argc, char **argv)
{
    int sending;
    int portnumber = -1;
    SOCKET *sklist;
    int skcount, sksize;
    int exitcode;
    int errors;
    int got_host = FALSE;
    int use_subsystem = 0;
    long now, next;

    sklist = NULL;
    skcount = sksize = 0;
    /*
     * Initialise port and protocol to sensible defaults. (These
     * will be overridden by more or less anything.)
     */
    default_protocol = PROT_SSH;
    default_port = 22;

    flags = FLAG_STDERR;
    /*
     * Process the command line.
     */
    do_defaults(NULL, &cfg);
    loaded_session = FALSE;
    default_protocol = cfg.protocol;
    default_port = cfg.port;
    errors = 0;
    {
	/*
	 * Override the default protocol if PLINK_PROTOCOL is set.
	 */
	char *p = getenv("PLINK_PROTOCOL");
	if (p) {
	    const Backend *b = backend_from_name(p);
	    if (b) {
		default_protocol = cfg.protocol = b->protocol;
		default_port = cfg.port = b->default_port;
	    }
	}
    }
    if (argc > 2 && !strcmp(argv[1], "-ini") && *(argv[2]) != '\0') {
        char* dummy;
        DWORD attributes;
        GetFullPathName(argv[2], sizeof inifile, inifile, &dummy);
        attributes = GetFileAttributes(inifile);
        if (attributes != 0xFFFFFFFF && (attributes & FILE_ATTRIBUTE_DIRECTORY) == 0) {
            HANDLE handle = CreateFile(inifile, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
            if (handle != INVALID_HANDLE_VALUE) {
                CloseHandle(handle);
                use_inifile = 1;
                argc -= 2;
                argv += 2;
            }
        }
    }
    while (--argc) {
	char *p = *++argv;
	if (*p == '-') {
	    int ret = cmdline_process_param(p, (argc > 1 ? argv[1] : NULL),
					    1, &cfg);
	    if (ret == -2) {
		fprintf(stderr,
			"plink: option \"%s\" requires an argument\n", p);
		errors = 1;
	    } else if (ret == 2) {
		--argc, ++argv;
	    } else if (ret == 1) {
		continue;
	    } else if (!strcmp(p, "-batch")) {
		console_batch_mode = 1;
	    } else if (!strcmp(p, "-s")) {
		/* Save status to write to cfg later. */
		use_subsystem = 1;
	    } else if (!strcmp(p, "-V")) {
                version();
            } else if (!strcmp(p, "-pgpfp")) {
                pgp_fingerprints();
                exit(1);
	    } else {
		fprintf(stderr, "plink: unknown option \"%s\"\n", p);
		errors = 1;
	    }
	} else if (*p) {
	    if (!cfg_launchable(&cfg) || !(got_host || loaded_session)) {
		char *q = p;
		/*
		 * If the hostname starts with "telnet:", set the
		 * protocol to Telnet and process the string as a
		 * Telnet URL.
		 */
		if (!strncmp(q, "telnet:", 7)) {
		    char c;

		    q += 7;
		    if (q[0] == '/' && q[1] == '/')
			q += 2;
		    cfg.protocol = PROT_TELNET;
		    p = q;
		    while (*p && *p != ':' && *p != '/')
			p++;
		    c = *p;
		    if (*p)
			*p++ = '\0';
		    if (c == ':')
			cfg.port = atoi(p);
		    else
			cfg.port = -1;
		    strncpy(cfg.host, q, sizeof(cfg.host) - 1);
		    cfg.host[sizeof(cfg.host) - 1] = '\0';
		    got_host = TRUE;
		} else {
		    char *r, *user, *host;
		    /*
		     * Before we process the [[email protected]]host string, we
		     * first check for the presence of a protocol
		     * prefix (a protocol name followed by ",").
		     */
		    r = strchr(p, ',');
		    if (r) {
			const Backend *b;
			*r = '\0';
			b = backend_from_name(p);
			if (b) {
			    default_protocol = cfg.protocol = b->protocol;
			    portnumber = b->default_port;
			}
			p = r + 1;
		    }

		    /*
		     * A nonzero length string followed by an @ is treated
		     * as a username. (We discount an _initial_ @.) The
		     * rest of the string (or the whole string if no @)
		     * is treated as a session name and/or hostname.
		     */
		    r = strrchr(p, '@');
		    if (r == p)
			p++, r = NULL; /* discount initial @ */
		    if (r) {
			*r++ = '\0';
			user = p, host = r;
		    } else {
			user = NULL, host = p;
		    }

		    /*
		     * Now attempt to load a saved session with the
		     * same name as the hostname.
		     */
		    {
			Config cfg2;
			do_defaults(host, &cfg2);
			if (loaded_session || !cfg_launchable(&cfg2)) {
			    /* No settings for this host; use defaults */
			    /* (or session was already loaded with -load) */
			    strncpy(cfg.host, host, sizeof(cfg.host) - 1);
			    cfg.host[sizeof(cfg.host) - 1] = '\0';
			    cfg.port = default_port;
			    got_host = TRUE;
			} else {
			    cfg = cfg2;
			    loaded_session = TRUE;
			}
		    }

		    if (user) {
			/* Patch in specified username. */
			strncpy(cfg.username, user,
				sizeof(cfg.username) - 1);
			cfg.username[sizeof(cfg.username) - 1] = '\0';
		    }

		}
	    } else {
		char *command;
		int cmdlen, cmdsize;
		cmdlen = cmdsize = 0;
		command = NULL;

		while (argc) {
		    while (*p) {
			if (cmdlen >= cmdsize) {
			    cmdsize = cmdlen + 512;
			    command = sresize(command, cmdsize, char);
			}
			command[cmdlen++]=*p++;
		    }
		    if (cmdlen >= cmdsize) {
			cmdsize = cmdlen + 512;
			command = sresize(command, cmdsize, char);
		    }
		    command[cmdlen++]=' '; /* always add trailing space */
		    if (--argc) p = *++argv;
		}
		if (cmdlen) command[--cmdlen]='\0';
				       /* change trailing blank to NUL */
		cfg.remote_cmd_ptr = command;
		cfg.remote_cmd_ptr2 = NULL;
		cfg.nopty = TRUE;      /* command => no terminal */

		break;		       /* done with cmdline */
	    }
	}
Example #12
0
/*
 * Process the command line.
 */
void CmdLineHandler::process_cmdline(LPSTR cmdline)
{
	USES_CONVERSION;
	char *p;
	int got_host = 0;
	/* By default, we bring up the config dialog, rather than launching
	 * a session. This gets set to TRUE if something happens to change
	 * that (e.g., a hostname is specified on the command-line). */
	int allow_launch = FALSE;

	default_protocol = be_default_protocol;
	/* Find the appropriate default port. */
	{
	    Backend *b = backend_from_proto(default_protocol);
	    default_port = 0; /* illegal */
	    if (b)
		default_port = b->default_port;
	}
	cfg.logtype = LGTYP_NONE;

	do_defaults(NULL, &cfg);

	p = cmdline;

	/*
	 * Process a couple of command-line options which are more
	 * easily dealt with before the line is broken up into words.
	 * These are the old-fashioned but convenient @sessionname and
	 * the internal-use-only &sharedmemoryhandle, neither of which
	 * are combined with anything else.
	 */
	while (*p && isspace(*p))
	    p++;
	if (*p == '@') {
            /*
             * An initial @ means that the whole of the rest of the
             * command line should be treated as the name of a saved
             * session, with _no quoting or escaping_. This makes it a
             * very convenient means of automated saved-session
             * launching, via IDM_SAVEDSESS or Windows 7 jump lists.
             */
	    int i = strlen(p);
	    while (i > 1 && isspace(p[i - 1]))
		i--;
	    p[i] = '\0';
	    do_defaults(p + 1, &cfg);
	    if (!cfg_launchable(&cfg) && !do_config()) {
			return;
	    }
	    allow_launch = TRUE;    /* allow it to be launched directly */
	} else if (*p == '&') {
	    /*
	     * An initial & means we've been given a command line
	     * containing the hex value of a HANDLE for a file
	     * mapping object, which we must then extract as a
	     * config.
	     */
	    HANDLE filemap;
	    Config *cp;
	    if (sscanf(p + 1, "%p", &filemap) == 1 &&
		(cp = (Config*)MapViewOfFile(filemap, FILE_MAP_READ,
				    0, 0, sizeof(Config))) != NULL) {
		cfg = *cp;
		UnmapViewOfFile(cp);
		CloseHandle(filemap);
	    } else if (!do_config()) {
		cleanup_exit(0);
	    }
	    allow_launch = TRUE;
	} else {
	    /*
	     * Otherwise, break up the command line and deal with
	     * it sensibly.
	     */
	    int argc, i;
	    char **argv;
	    
	    split_into_argv(cmdline, &argc, &argv, NULL);

	    for (i = 0; i < argc; i++) {
		char *p = argv[i];
		int ret;

		ret = cmdline_process_param(p, i+1<argc?argv[i+1]:NULL,
					    1, &cfg);
		if (ret == -2) {
		    cmdline_error("option \"%s\" requires an argument", p);
		} else if (ret == 2) {
		    i++;	       /* skip next argument */
		} else if (ret == 1) {
		    continue;	       /* nothing further needs doing */
		} else if (!strcmp(p, "-cleanup") ||
			   !strcmp(p, "-cleanup-during-uninstall")) {
		    /*
		     * `putty -cleanup'. Remove all registry
		     * entries associated with PuTTY, and also find
		     * and delete the random seed file.
		     */
		    char *s1, *s2;
		    /* Are we being invoked from an uninstaller? */
		    if (!strcmp(p, "-cleanup-during-uninstall")) {
			s1 = dupprintf("Remove saved sessions and random seed file?\n"
				       "\n"
				       "If you hit Yes, ALL Registry entries associated\n"
				       "with %s will be removed, as well as the\n"
				       "random seed file. THIS PROCESS WILL\n"
				       "DESTROY YOUR SAVED SESSIONS.\n"
				       "(This only affects the currently logged-in user.)\n"
				       "\n"
				       "If you hit No, uninstallation will proceed, but\n"
				       "saved sessions etc will be left on the machine.",
				       appname);
			s2 = dupprintf("%s Uninstallation", appname);
		    } else {
			s1 = dupprintf("This procedure will remove ALL Registry entries\n"
				       "associated with %s, and will also remove\n"
				       "the random seed file. (This only affects the\n"
				       "currently logged-in user.)\n"
				       "\n"
				       "THIS PROCESS WILL DESTROY YOUR SAVED SESSIONS.\n"
				       "Are you really sure you want to continue?",
				       appname);
			s2 = dupprintf("%s Warning", appname);
		    }
		    //if (message_box(A2W(s1), A2W(s2),
			//	    MB_YESNO | MB_ICONWARNING | MB_DEFBUTTON2,
			//	    HELPCTXID(option_cleanup)) == IDYES) {
			if (MessageBox(WindowInterface::GetInstance()->getNativeTopWnd(), A2W(s1), A2W(s2),
				    MB_YESNO | MB_ICONWARNING | MB_DEFBUTTON2) == IDYES) {
			gStorage->cleanup_all();
		    }
		    sfree(s1);
		    sfree(s2);
		    exit(0);
		} else if (!strcmp(p, "-pgpfp")) {
		    pgp_fingerprints();
		    exit(1);
		} else if (*p != '-') {
		    char *q = p;
		    if (got_host) {
			/*
			 * If we already have a host name, treat
			 * this argument as a port number. NB we
			 * have to treat this as a saved -P
			 * argument, so that it will be deferred
			 * until it's a good moment to run it.
			 */
			int ret = cmdline_process_param("-P", p, 1, &cfg);
			assert(ret == 2);
		    } else if (!strncmp(q, "telnet:", 7)) {
			/*
			 * If the hostname starts with "telnet:",
			 * set the protocol to Telnet and process
			 * the string as a Telnet URL.
			 */
			char c;

			q += 7;
			if (q[0] == '/' && q[1] == '/')
			    q += 2;
			cfg.protocol = PROT_TELNET;
			p = q;
			while (*p && *p != ':' && *p != '/')
			    p++;
			c = *p;
			if (*p)
			    *p++ = '\0';
			if (c == ':')
			    cfg.port = atoi(p);
			else
			    cfg.port = -1;
			strncpy(cfg.host, q, sizeof(cfg.host) - 1);
			cfg.host[sizeof(cfg.host) - 1] = '\0';
			got_host = 1;
		    } else {
			/*
			 * Otherwise, treat this argument as a host
			 * name.
			 */
			while (*p && !isspace(*p))
			    p++;
			if (*p)
			    *p++ = '\0';
			strncpy(cfg.host, q, sizeof(cfg.host) - 1);
			cfg.host[sizeof(cfg.host) - 1] = '\0';
			got_host = 1;
		    }
		} else {
		    cmdline_error("unknown option \"%s\"", p);
		}
	    }
	}

	cmdline_run_saved(&cfg);

	if (loaded_session || got_host)
	    allow_launch = TRUE;

	if ((!allow_launch || !cfg_launchable(&cfg)) && !do_config()) {
	    return ;
	}

	adjust_host(&cfg);

   if (!strcmp(cfg.session_name, DEFAULT_SESSION_NAME)){
      if (cfg.protocol == PROT_SERIAL)
         snprintf(cfg.session_name, sizeof(cfg.session_name),  
            "tmp#%s:%d", cfg.serline, cfg.serspeed);
      else
         snprintf(cfg.session_name, sizeof(cfg.session_name),  
            "tmp#%s:%d", cfg.host, cfg.port);
	  save_settings(cfg.session_name, &cfg);
   }
}