/*
* Copyright 2002 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* 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.
*/
#ifndef lint
char copyright[] =
"@(#) Copyright (c) 1988, 1990 Regents of the University of California.\n"
" All rights reserved.\n";
#endif /* not lint */
#ifndef lint
static char sccsid[] = "@(#)main.c 5.5 (Berkeley) 12/18/92";
#endif /* not lint */
#include <string.h>
#include <sys/types.h>
#include "ring.h"
#include "externs.h"
#include "defines.h"
/* These values need to be the same as defined in libtelnet/kerberos5.c */
/* Either define them in both places, or put in some common header file. */
#define OPTS_FORWARD_CREDS 0x00000002
#define OPTS_FORWARDABLE_CREDS 0x00000001
/*
* This flag is incremented, if any of the
* Kerberos command line options are used.
*/
int krb5auth_flag = 0;
/*
* Initialize variables.
*/
int
tninit()
{
init_terminal();
init_network();
if (init_telnet() == 0)
return (0);
init_sys();
return (1);
}
#if defined(USE_TOS)
#define TELNET_OPTIONS "8EKLS:X:acde:fFk:l:n:rt:x"
#else
#define TELNET_OPTIONS "8EKLX:acde:fFk:l:n:rt:x"
#endif /* USE_TOS */
static void
usage()
{
(void) fprintf(stderr, "Usage: %s %s\n",
prompt,
" [-8] [-E] [-K] [-L] [-a] [-c] [-d] [-f/-F] [-r] [-x]"
"\n\t[-e char] [-k realm] [-l user] [-n tracefile] [-X atype]"
"\n\t[host-name [port]]");
exit(1);
}
/*
* main. Parse arguments, invoke the protocol or command parser.
*/
int
main(int argc, char *argv[])
{
int ch;
char *user;
extern boolean_t auth_enable_encrypt;
extern int forward_flags;
/* Clear out things */
if (tninit() == 0)
return (EXIT_FAILURE);
if (!isatty(fileno(stdin))) {
setbuf(stdin, NULL);
}
if (!isatty(fileno(stdout))) {
setbuf(stdout, NULL);
}
TerminalSaveState();
if (prompt = strrchr(argv[0], '/'))
++prompt;
else
prompt = argv[0];
user = NULL;
rlogin = (strncmp(prompt, "rlog", 4) == 0) ? '~' : _POSIX_VDISABLE;
autologin = -1;
while ((ch = getopt(argc, argv, TELNET_OPTIONS)) != EOF) {
switch (ch) {
case 'K':
autologin_set = 1;
autologin = 0;
krb5auth_flag++;
break;
case 'X':
auth_disable_name(optarg);
krb5auth_flag++;
break;
case 'a':
autologin_set = 1;
autologin = 1;
krb5auth_flag++;
break;
case 'f':
if (forward_flags & OPTS_FORWARD_CREDS) {
(void) fprintf(stderr, gettext(
"%s: Only one of -f "
"and -F allowed.\n"), prompt);
usage();
}
forward_flags |= OPTS_FORWARD_CREDS;
forward_flag_set = 1;
krb5auth_flag++;
break;
case 'F':
if (forward_flags & OPTS_FORWARD_CREDS) {
(void) fprintf(stderr, gettext(
"%s: Only one of -f "
"and -F allowed.\n"), prompt);
usage();
}
forward_flags |= OPTS_FORWARD_CREDS;
forward_flags |= OPTS_FORWARDABLE_CREDS;
forwardable_flag_set = 1;
forward_flag = 1;
krb5auth_flag++;
break;
case 'k':
set_krb5_realm(optarg);
krb5auth_flag++;
break;
case 'x':
if (krb5_privacy_allowed()) {
encrypt_auto(1);
decrypt_auto(1);
wantencryption = B_TRUE;
autologin = 1;
autologin_set = 1;
auth_enable_encrypt = B_TRUE;
encrypt_flag_set = 1;
krb5auth_flag++;
} else {
(void) fprintf(stderr, gettext(
"%s: Encryption not supported.\n"),
prompt);
exit(1);
}
break;
/* begin common options */
case '8':
eight = 3; /* binary output and input */
break;
case 'E':
escape_valid = B_FALSE;
rlogin = escape = _POSIX_VDISABLE;
break;
case 'L':
eight |= 2; /* binary output only */
break;
#if USE_TOS
case 'S':
(void) fprintf(stderr,
"%s: Warning: -S ignored, no parsetos() support.\n",
prompt);
break;
#endif /* USE_TOS */
case 'c':
skiprc = 1;
break;
case 'd':
debug = 1;
break;
case 'e':
escape_valid = B_TRUE;
set_escape_char(optarg);
break;
case 'l':
autologin_set = 1;
autologin = 1;
user = optarg;
break;
case 'n':
SetNetTrace(optarg);
break;
case 'r':
rlogin = '~';
break;
case 't':
(void) fprintf(stderr,
"%s: Warning: -t ignored, no TN3270 support.\n",
prompt);
break;
default:
usage();
/* NOTREACHED */
}
}
if (autologin == -1)
autologin = (rlogin == _POSIX_VDISABLE) ? 0 : 1;
argc -= optind;
argv += optind;
if (argc) {
char *args[7], **argp = args;
if (argc > 2)
usage();
*argp++ = prompt;
if (user) {
*argp++ = "-l";
*argp++ = user;
}
*argp++ = argv[0]; /* host */
if (argc > 1)
*argp++ = argv[1]; /* port */
*argp = 0;
if (setjmp(toplevel) != 0)
Exit(EXIT_SUCCESS);
if (tn(argp - args, args) == 1)
return (EXIT_SUCCESS);
else
return (EXIT_FAILURE);
}
(void) setjmp(toplevel);
for (;;) {
command(1, 0, 0);
}
}