static int preserve = 0;
static int targetshouldbedirectory = 0;
static int statistics = 1;
static int prev_stats_len = 0;
static int scp_unsafe_mode = 0;
static int errs = 0;
static int gui_mode = 0;
static int try_scp = 1;
static int try_sftp = 1;
static int main_cmd_is_sftp = 0;
static int fallback_cmd_is_sftp = 0;
static int using_sftp = 0;

static Backend *back;
static void *backhandle;
static Config cfg;

static void source(char *src);

 */
static void ssh_scp_init(void)
{
    while (!back->sendok(backhandle)) {
	if (ssh_sftp_loop_iteration() < 0)
	    return;		       /* doom */
    }

    /* Work out which backend we ended up using. */
    using_sftp = !ssh_fallback_cmd(backhandle);
    if (!ssh_fallback_cmd(backhandle))
	using_sftp = main_cmd_is_sftp;
    else
	using_sftp = fallback_cmd_is_sftp;

    if (verbose) {
	if (using_sftp)
	    tell_user(stderr, "Using SFTP");
	else
	    tell_user(stderr, "Using SCP1");
    }
}

     * X forwarding.
     */
    cfg.x11_forward = 0;
    cfg.agentfwd = 0;
    cfg.portfwd[0] = cfg.portfwd[1] = '\0';

    /*
     * Set up main and possibly fallback command depending on
     * options specified by user.
     * Attempt to start the SFTP subsystem as a first choice,
     * falling back to the provided scp command if that fails.
     */
    cfg.remote_cmd_ptr2 = NULL;
    if (try_sftp) {
	/* First choice is SFTP subsystem. */
	main_cmd_is_sftp = 1;
    strcpy(cfg.remote_cmd, "sftp");
    cfg.ssh_subsys = TRUE;
    cfg.remote_cmd_ptr2 = cmd;
    cfg.ssh_subsys2 = FALSE;
	strcpy(cfg.remote_cmd, "sftp");
	cfg.ssh_subsys = TRUE;
	if (try_scp) {
	    /* Fallback is to use the provided scp command. */
	    fallback_cmd_is_sftp = 0;
	    cfg.remote_cmd_ptr2 = cmd;
	    cfg.ssh_subsys2 = FALSE;
	} else {
	    /* Since we're not going to try SCP, we may as well try
	     * harder to find an SFTP server, since in the current
	     * implementation we have a spare slot. */
	    fallback_cmd_is_sftp = 1;
	    /* see psftp.c for full explanation of this kludge */
	    cfg.remote_cmd_ptr2 = 
		"test -x /usr/lib/sftp-server && exec /usr/lib/sftp-server\n"
		"test -x /usr/local/lib/sftp-server && exec /usr/local/lib/sftp-server\n"
		"exec sftp-server";
	    cfg.ssh_subsys2 = FALSE;
	}
    } else {
	/* Don't try SFTP at all; just try the scp command. */
	main_cmd_is_sftp = 0;
	cfg.remote_cmd_ptr = cmd;
	cfg.ssh_subsys = FALSE;
    }
    cfg.nopty = TRUE;

    back = &ssh_backend;

    err = back->init(NULL, &backhandle, &cfg, cfg.host, cfg.port, &realhost,0);
    if (err != NULL)
	bump("ssh_init: %s", err);

    printf("  -pw passw login with specified password\n");
    printf("  -1 -2     force use of particular SSH protocol version\n");
    printf("  -C        enable compression\n");
    printf("  -i key    private key file for authentication\n");
    printf("  -batch    disable all interactive prompts\n");
    printf("  -unsafe   allow server-side wildcards (DANGEROUS)\n");
    printf("  -V        print version information\n");
    printf("  -sftp     force use of SFTP protocol\n");
    printf("  -scp      force use of SCP protocol\n");
#if 0
    /*
     * -gui is an internal option, used by GUI front ends to get
     * pscp to pass progress reports back to them. It's not an
     * ordinary user-accessible option, so it shouldn't be part of
     * the command-line help. The only people who need to know
     * about it are programmers, and they can read the source.

	    console_batch_mode = TRUE;
        } else if (strcmp(argv[i], "-ls") == 0) {
	    list = 1;
	} else if (strcmp(argv[i], "-batch") == 0) {
	    console_batch_mode = 1;
	} else if (strcmp(argv[i], "-unsafe") == 0) {
	    scp_unsafe_mode = 1;
	} else if (strcmp(argv[i], "-sftp") == 0) {
	    try_scp = 0; try_sftp = 1;
	} else if (strcmp(argv[i], "-scp") == 0) {
	    try_scp = 1; try_sftp = 0;
	} else if (strcmp(argv[i], "--") == 0) {
	    i++;
	    break;
	} else {
	    cmdline_error("unknown option \"%s\"", argv[i]);
	}
    }