notepad_test

/*
 * Copyright (c) 1988, 1990 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *  This product includes software developed by the University of
 *  California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

char copyright[] =
  "@(#) Copyright (c) 1988, 1990 Regents of the University of California.\n"
  "All rights reserved.\n";

/*
 * From: @(#)main.c 5.4 (Berkeley) 3/22/91
 */
char main_rcsid[] =
  "$Id: main.cc,v 1.14 1999/08/01 05:06:37 dholland Exp $";

#include "../version.h"

#include <sys/types.h>
#include <getopt.h>
#include <stdlib.h>
#include <string.h>
#include <netdb.h>
#include <errno.h>

#include "ring.h"
#include "externs.h"
#include "defines.h"
#include "proto.h"

/*
 * Initialize variables.
 */
void
tninit(void)
{
    init_terminal();

    init_network();

    init_telnet();

    init_sys();

#if defined(TN3270)
    init_3270();
#endif
}

/*
 * note: -x should mean use encryption
 *       -k <realm> to set kerberos realm
 *       -K don't auto-login
 *       -X <atype> disable specified auth type
 */
void usage(void) {
    fprintf(stderr, "Usage: %s %s%s%s%s\n",
        prompt,
        "[-4] [-6] [-8] [-E] [-L] [-a] [-d] [-e char] [-l user]",
        "\n\t[-n tracefile] [ -b addr ]",
#ifdef TN3270
        "\n\t"
        "[-noasynch] [-noasynctty] [-noasyncnet] [-r] [-t transcom]\n\t",
#else
        " [-r] ",
#endif
        "[host-name [port]]"
    );
    exit(1);
}

/*
 * main.  Parse arguments, invoke the protocol or command parser.
 */

int
main(int argc, char *argv[])
{
    extern char *optarg;
    extern int optind;
    int ch;
    char *user, *srcaddr;
    int family;

    tninit();       /* Clear out things */
#if defined(CRAY) && !defined(__STDC__)
    _setlist_init();    /* Work around compiler bug */
#endif

    TerminalSaveState();
    if ((old_tc.c_cflag & (CSIZE|PARENB)) != CS8)
        eight = 0;

    if ((prompt = strrchr(argv[0], '/'))!=NULL)
        ++prompt;
    else
        prompt = argv[0];

    user = srcaddr = NULL;
    family = 0;

    rlogin = (strncmp(prompt, "rlog", 4) == 0) ? '~' : _POSIX_VDISABLE;
    autologin = -1;

    while ((ch = getopt(argc, argv,
                "4678EKLS:X:ab:de:k:l:n:rt:x")) != EOF) {
        switch(ch) {
        case '4':
            family = AF_INET;
            break;
        case '6':
#ifdef AF_INET6
            family = AF_INET6;
#else
            fputs("IPv6 unsupported\n", stderr);
#endif
            break;
        case '7':
            eight = 0;  /* 7-bit ouput and input */
            break;
        case '8':
            binary = 3; /* binary output and input */
            break;
        case 'E':
            rlogin = escapechar = _POSIX_VDISABLE;
            break;
        case 'K':
                //autologin = 0;
            break;
        case 'L':
            binary |= 2;    /* binary output only */
            break;
        case 'S':
            {
            extern int tos;
            int num;

#ifdef  HAS_GETTOS
            if ((num = parsetos(optarg, "tcp")) < 0) {
#else
            errno = 0;
            num = strtol(optarg, 0, 0);
            if (errno) {
#endif
                fprintf(stderr, "%s%s%s%s\n",
                    prompt, ": Bad TOS argument '",
                    optarg,
                    "; will try to use default TOS");
            } else
                tos = num;
            }
            break;
        case 'X':
                // disable authentication type "optarg"
            break;
        case 'a':
            autologin = 1;
            break;
        case 'c':
            skiprc = 1;
            break;
        case 'd':
            debug = 1;
            break;
        case 'e':
            set_escape_char(optarg);
            break;
        case 'k':
            fprintf(stderr,
                "%s: -k ignored, no Kerberos V4 support.\n",
                prompt);
            break;
        case 'l':
            autologin = 1;
            user = optarg;
            break;
        case 'n':
#ifdef TN3270
            /* distinguish between "-n oasynch" and "-noasynch" */
            if (argv[optind - 1][0] == '-' && argv[optind - 1][1]
                == 'n' && argv[optind - 1][2] == 'o') {
                if (!strcmp(optarg, "oasynch")) {
                    noasynchtty = 1;
                    noasynchnet = 1;
                } else if (!strcmp(optarg, "oasynchtty"))
                    noasynchtty = 1;
                else if (!strcmp(optarg, "oasynchnet"))
                    noasynchnet = 1;
            } else
#endif  /* TN3270 */
                SetNetTrace(optarg);
            break;
        case 'r':
            rlogin = '~';
            break;
        case 't':
#ifdef TN3270
            transcom = tline;
            (void)strcpy(transcom, optarg);
#else
            fprintf(stderr,
               "%s: Warning: -t ignored, no TN3270 support.\n",
                                prompt);
#endif
            break;
        case 'x':
            fprintf(stderr,
                "%s: -x ignored, no encryption support.\n",
                prompt);
            break;
        case 'b':
            srcaddr = optarg;
            break;
        case '?':
        default:
            usage();
            /* NOTREACHED */
        }
    }
    if (autologin == -1)
        autologin = (rlogin == _POSIX_VDISABLE) ? 0 : 1;

    argc -= optind;
    argv += optind;

    if (argc) {
        const char *args[7];
        const char **volatile argp = args;

        if (argc > 2)
            usage();
        *argp++ = prompt;
        if (user) {
            *argp++ = "-l";
            *argp++ = user;
        }
        if (srcaddr) {
            *argp++ = "-b";
            *argp++ = srcaddr;
        }
        if (family) {
            *argp++ = family == AF_INET ? "-4" : "-6";
        }
        *argp++ = argv[0];      /* host */
        if (argc > 1)
            *argp++ = argv[1];  /* port */
        *argp = 0;

        if (sigsetjmp(toplevel, 1) != 0)
            Exit(0);
        if (tn(argp - args, args) == 1)
            return (0);
        else
            return (1);
    }
    (void)sigsetjmp(toplevel, 1);
    for (;;) {
#ifdef TN3270
        if (shell_active)
            shell_continue();
        else
#endif
            command(1, 0, 0);
    }
}