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main.c revision 1.11
      1  1.11       abs /*	$NetBSD: main.c,v 1.11 1999/07/28 06:35:16 abs Exp $	*/
      2   1.5   thorpej 
      3   1.1       cgd /*
      4   1.4       jtk  * Copyright (c) 1988, 1990, 1993
      5   1.4       jtk  *	The Regents of the University of California.  All rights reserved.
      6   1.1       cgd  *
      7   1.1       cgd  * Redistribution and use in source and binary forms, with or without
      8   1.1       cgd  * modification, are permitted provided that the following conditions
      9   1.1       cgd  * are met:
     10   1.1       cgd  * 1. Redistributions of source code must retain the above copyright
     11   1.1       cgd  *    notice, this list of conditions and the following disclaimer.
     12   1.1       cgd  * 2. Redistributions in binary form must reproduce the above copyright
     13   1.1       cgd  *    notice, this list of conditions and the following disclaimer in the
     14   1.1       cgd  *    documentation and/or other materials provided with the distribution.
     15   1.1       cgd  * 3. All advertising materials mentioning features or use of this software
     16   1.1       cgd  *    must display the following acknowledgement:
     17   1.1       cgd  *	This product includes software developed by the University of
     18   1.1       cgd  *	California, Berkeley and its contributors.
     19   1.1       cgd  * 4. Neither the name of the University nor the names of its contributors
     20   1.1       cgd  *    may be used to endorse or promote products derived from this software
     21   1.1       cgd  *    without specific prior written permission.
     22   1.1       cgd  *
     23   1.1       cgd  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24   1.1       cgd  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25   1.1       cgd  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26   1.1       cgd  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27   1.1       cgd  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28   1.1       cgd  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29   1.1       cgd  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30   1.1       cgd  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31   1.1       cgd  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32   1.1       cgd  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33   1.1       cgd  * SUCH DAMAGE.
     34   1.1       cgd  */
     35   1.1       cgd 
     36   1.7  christos #include <sys/cdefs.h>
     37   1.1       cgd #ifndef lint
     38   1.7  christos __COPYRIGHT("@(#) Copyright (c) 1988, 1990, 1993\n\
     39   1.7  christos 	The Regents of the University of California.  All rights reserved.\n");
     40   1.1       cgd #endif /* not lint */
     41   1.1       cgd 
     42   1.1       cgd #ifndef lint
     43   1.5   thorpej #if 0
     44   1.5   thorpej static char sccsid[] = "@(#)main.c	8.3 (Berkeley) 5/30/95";
     45   1.5   thorpej #else
     46  1.11       abs __RCSID("$NetBSD: main.c,v 1.11 1999/07/28 06:35:16 abs Exp $");
     47   1.5   thorpej #endif
     48   1.1       cgd #endif /* not lint */
     49   1.1       cgd 
     50   1.1       cgd #include <sys/types.h>
     51   1.8     enami 
     52   1.8     enami #include <unistd.h>
     53   1.1       cgd 
     54   1.1       cgd #include "ring.h"
     55   1.1       cgd #include "externs.h"
     56   1.1       cgd #include "defines.h"
     57   1.1       cgd 
     58   1.3       cgd /* These values need to be the same as defined in libtelnet/kerberos5.c */
     59   1.3       cgd /* Either define them in both places, or put in some common header file. */
     60   1.4       jtk #define OPTS_FORWARD_CREDS	0x00000002
     61   1.4       jtk #define OPTS_FORWARDABLE_CREDS	0x00000001
     62   1.3       cgd 
     63   1.3       cgd #if 0
     64   1.3       cgd #define FORWARD
     65   1.3       cgd #endif
     66   1.3       cgd 
     67   1.9    itojun #if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
     68   1.9    itojun char *ipsec_policy = NULL;
     69   1.9    itojun #endif
     70   1.9    itojun 
     71   1.7  christos int main P((int, char *[]));
     72   1.7  christos 
     73   1.1       cgd /*
     74   1.1       cgd  * Initialize variables.
     75   1.1       cgd  */
     76   1.1       cgd     void
     77   1.1       cgd tninit()
     78   1.1       cgd {
     79   1.1       cgd     init_terminal();
     80   1.1       cgd 
     81   1.1       cgd     init_network();
     82   1.4       jtk 
     83   1.1       cgd     init_telnet();
     84   1.1       cgd 
     85   1.1       cgd     init_sys();
     86   1.1       cgd 
     87   1.1       cgd #if defined(TN3270)
     88   1.1       cgd     init_3270();
     89   1.1       cgd #endif
     90   1.1       cgd }
     91   1.1       cgd 
     92   1.1       cgd 	void
     93   1.1       cgd usage()
     94   1.1       cgd {
     95   1.1       cgd 	fprintf(stderr, "Usage: %s %s%s%s%s\n",
     96   1.1       cgd 	    prompt,
     97   1.3       cgd #ifdef	AUTHENTICATION
     98  1.11       abs 	    "[-8] [-E] [-K] [-L] [-N] [-S tos] [-X atype] [-a] [-c] [-d]",
     99  1.11       abs 	    "\n\t[-e char] [-k realm] [-l user] [-f/-F] [-n tracefile] ",
    100   1.1       cgd #else
    101  1.11       abs 	    "[-8] [-E] [-L] [-N] [-S tos] [-a] [-c] [-d] [-e char] [-l user]",
    102   1.4       jtk 	    "\n\t[-n tracefile]",
    103   1.1       cgd #endif
    104   1.1       cgd #if defined(TN3270) && defined(unix)
    105   1.3       cgd # ifdef AUTHENTICATION
    106   1.4       jtk 	    "[-noasynch] [-noasynctty]\n\t[-noasyncnet] [-r] [-t transcom] ",
    107   1.1       cgd # else
    108   1.4       jtk 	    "[-noasynch] [-noasynctty] [-noasyncnet] [-r]\n\t[-t transcom]",
    109   1.1       cgd # endif
    110   1.1       cgd #else
    111   1.1       cgd 	    "[-r] ",
    112   1.1       cgd #endif
    113   1.9    itojun #if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
    114  1.10   thorpej 	    "[-P policy] "
    115  1.10   thorpej #endif
    116   1.1       cgd 	    "[host-name [port]]"
    117   1.1       cgd 	);
    118   1.1       cgd 	exit(1);
    119   1.1       cgd }
    120   1.1       cgd 
    121   1.1       cgd /*
    122   1.1       cgd  * main.  Parse arguments, invoke the protocol or command parser.
    123   1.1       cgd  */
    124   1.1       cgd 
    125   1.1       cgd 
    126   1.7  christos int
    127   1.1       cgd main(argc, argv)
    128   1.1       cgd 	int argc;
    129   1.1       cgd 	char *argv[];
    130   1.1       cgd {
    131   1.1       cgd 	extern char *optarg;
    132   1.1       cgd 	extern int optind;
    133   1.1       cgd 	int ch;
    134   1.7  christos 	char *user;
    135   1.3       cgd #ifdef	FORWARD
    136   1.3       cgd 	extern int forward_flags;
    137   1.3       cgd #endif	/* FORWARD */
    138   1.1       cgd 
    139   1.1       cgd 	tninit();		/* Clear out things */
    140   1.1       cgd #if	defined(CRAY) && !defined(__STDC__)
    141   1.1       cgd 	_setlist_init();	/* Work around compiler bug */
    142   1.1       cgd #endif
    143   1.1       cgd 
    144   1.1       cgd 	TerminalSaveState();
    145   1.1       cgd 
    146   1.7  christos 	if ((prompt = strrchr(argv[0], '/')) != NULL)
    147   1.1       cgd 		++prompt;
    148   1.1       cgd 	else
    149   1.1       cgd 		prompt = argv[0];
    150   1.1       cgd 
    151   1.1       cgd 	user = NULL;
    152   1.1       cgd 
    153   1.1       cgd 	rlogin = (strncmp(prompt, "rlog", 4) == 0) ? '~' : _POSIX_VDISABLE;
    154   1.1       cgd 	autologin = -1;
    155   1.1       cgd 
    156   1.9    itojun #if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
    157   1.9    itojun #define IPSECOPT	"P:"
    158   1.9    itojun #else
    159   1.9    itojun #define IPSECOPT
    160   1.9    itojun #endif
    161  1.11       abs 	while ((ch = getopt(argc, argv, "8EKLNS:X:acde:fFk:l:n:rt:x"
    162   1.9    itojun 			IPSECOPT)) != -1) {
    163   1.9    itojun #undef IPSECOPT
    164   1.1       cgd 		switch(ch) {
    165   1.1       cgd 		case '8':
    166   1.1       cgd 			eight = 3;	/* binary output and input */
    167   1.1       cgd 			break;
    168   1.1       cgd 		case 'E':
    169   1.1       cgd 			rlogin = escape = _POSIX_VDISABLE;
    170   1.1       cgd 			break;
    171   1.1       cgd 		case 'K':
    172   1.3       cgd #ifdef	AUTHENTICATION
    173   1.1       cgd 			autologin = 0;
    174   1.1       cgd #endif
    175   1.1       cgd 			break;
    176   1.1       cgd 		case 'L':
    177   1.1       cgd 			eight |= 2;	/* binary output only */
    178  1.11       abs 			break;
    179  1.11       abs 		case 'N':
    180  1.11       abs 			doaddrlookup = 0;
    181   1.1       cgd 			break;
    182   1.1       cgd 		case 'S':
    183   1.1       cgd 		    {
    184   1.1       cgd #ifdef	HAS_GETTOS
    185   1.1       cgd 			extern int tos;
    186   1.1       cgd 
    187   1.1       cgd 			if ((tos = parsetos(optarg, "tcp")) < 0)
    188   1.1       cgd 				fprintf(stderr, "%s%s%s%s\n",
    189   1.1       cgd 					prompt, ": Bad TOS argument '",
    190   1.1       cgd 					optarg,
    191   1.1       cgd 					"; will try to use default TOS");
    192   1.1       cgd #else
    193   1.1       cgd 			fprintf(stderr,
    194   1.1       cgd 			   "%s: Warning: -S ignored, no parsetos() support.\n",
    195   1.1       cgd 								prompt);
    196   1.1       cgd #endif
    197   1.1       cgd 		    }
    198   1.1       cgd 			break;
    199   1.1       cgd 		case 'X':
    200   1.3       cgd #ifdef	AUTHENTICATION
    201   1.1       cgd 			auth_disable_name(optarg);
    202   1.1       cgd #endif
    203   1.1       cgd 			break;
    204   1.1       cgd 		case 'a':
    205   1.1       cgd 			autologin = 1;
    206   1.1       cgd 			break;
    207   1.1       cgd 		case 'c':
    208   1.1       cgd 			skiprc = 1;
    209   1.1       cgd 			break;
    210   1.1       cgd 		case 'd':
    211   1.1       cgd 			debug = 1;
    212   1.1       cgd 			break;
    213   1.1       cgd 		case 'e':
    214   1.1       cgd 			set_escape_char(optarg);
    215   1.1       cgd 			break;
    216   1.3       cgd 		case 'f':
    217   1.3       cgd #if defined(AUTHENTICATION) && defined(KRB5) && defined(FORWARD)
    218   1.3       cgd 			if (forward_flags & OPTS_FORWARD_CREDS) {
    219   1.4       jtk 			    fprintf(stderr,
    220   1.3       cgd 				    "%s: Only one of -f and -F allowed.\n",
    221   1.3       cgd 				    prompt);
    222   1.3       cgd 			    usage();
    223   1.3       cgd 			}
    224   1.3       cgd 			forward_flags |= OPTS_FORWARD_CREDS;
    225   1.3       cgd #else
    226   1.3       cgd 			fprintf(stderr,
    227   1.4       jtk 			 "%s: Warning: -f ignored, no Kerberos V5 support.\n",
    228   1.3       cgd 				prompt);
    229   1.3       cgd #endif
    230   1.3       cgd 			break;
    231   1.3       cgd 		case 'F':
    232   1.3       cgd #if defined(AUTHENTICATION) && defined(KRB5) && defined(FORWARD)
    233   1.3       cgd 			if (forward_flags & OPTS_FORWARD_CREDS) {
    234   1.4       jtk 			    fprintf(stderr,
    235   1.3       cgd 				    "%s: Only one of -f and -F allowed.\n",
    236   1.3       cgd 				    prompt);
    237   1.3       cgd 			    usage();
    238   1.3       cgd 			}
    239   1.3       cgd 			forward_flags |= OPTS_FORWARD_CREDS;
    240   1.3       cgd 			forward_flags |= OPTS_FORWARDABLE_CREDS;
    241   1.3       cgd #else
    242   1.3       cgd 			fprintf(stderr,
    243   1.4       jtk 			 "%s: Warning: -F ignored, no Kerberos V5 support.\n",
    244   1.3       cgd 				prompt);
    245   1.3       cgd #endif
    246   1.3       cgd 			break;
    247   1.1       cgd 		case 'k':
    248   1.3       cgd #if defined(AUTHENTICATION) && defined(KRB4)
    249   1.1       cgd 		    {
    250   1.1       cgd 			extern char *dest_realm, dst_realm_buf[], dst_realm_sz;
    251   1.1       cgd 			dest_realm = dst_realm_buf;
    252   1.1       cgd 			(void)strncpy(dest_realm, optarg, dst_realm_sz);
    253   1.1       cgd 		    }
    254   1.1       cgd #else
    255   1.1       cgd 			fprintf(stderr,
    256   1.1       cgd 			   "%s: Warning: -k ignored, no Kerberos V4 support.\n",
    257   1.1       cgd 								prompt);
    258   1.1       cgd #endif
    259   1.1       cgd 			break;
    260   1.1       cgd 		case 'l':
    261   1.1       cgd 			autologin = 1;
    262   1.1       cgd 			user = optarg;
    263   1.1       cgd 			break;
    264   1.1       cgd 		case 'n':
    265   1.1       cgd #if defined(TN3270) && defined(unix)
    266   1.1       cgd 			/* distinguish between "-n oasynch" and "-noasynch" */
    267   1.1       cgd 			if (argv[optind - 1][0] == '-' && argv[optind - 1][1]
    268   1.1       cgd 			    == 'n' && argv[optind - 1][2] == 'o') {
    269   1.1       cgd 				if (!strcmp(optarg, "oasynch")) {
    270   1.1       cgd 					noasynchtty = 1;
    271   1.1       cgd 					noasynchnet = 1;
    272   1.1       cgd 				} else if (!strcmp(optarg, "oasynchtty"))
    273   1.1       cgd 					noasynchtty = 1;
    274   1.1       cgd 				else if (!strcmp(optarg, "oasynchnet"))
    275   1.1       cgd 					noasynchnet = 1;
    276   1.1       cgd 			} else
    277   1.1       cgd #endif	/* defined(TN3270) && defined(unix) */
    278   1.1       cgd 				SetNetTrace(optarg);
    279   1.1       cgd 			break;
    280   1.1       cgd 		case 'r':
    281   1.1       cgd 			rlogin = '~';
    282   1.1       cgd 			break;
    283   1.1       cgd 		case 't':
    284   1.1       cgd #if defined(TN3270) && defined(unix)
    285   1.1       cgd 			transcom = tline;
    286   1.1       cgd 			(void)strcpy(transcom, optarg);
    287   1.1       cgd #else
    288   1.1       cgd 			fprintf(stderr,
    289   1.1       cgd 			   "%s: Warning: -t ignored, no TN3270 support.\n",
    290   1.1       cgd 								prompt);
    291   1.1       cgd #endif
    292   1.1       cgd 			break;
    293   1.1       cgd 		case 'x':
    294   1.1       cgd 			fprintf(stderr,
    295   1.1       cgd 			    "%s: Warning: -x ignored, no ENCRYPT support.\n",
    296   1.1       cgd 								prompt);
    297   1.1       cgd 			break;
    298   1.9    itojun #if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
    299   1.9    itojun 		case 'P':
    300   1.9    itojun 			ipsec_policy = strdup(optarg);
    301   1.9    itojun 			break;
    302   1.9    itojun #endif
    303   1.1       cgd 		case '?':
    304   1.1       cgd 		default:
    305   1.1       cgd 			usage();
    306   1.1       cgd 			/* NOTREACHED */
    307   1.1       cgd 		}
    308   1.1       cgd 	}
    309   1.1       cgd 	if (autologin == -1)
    310   1.1       cgd 		autologin = (rlogin == _POSIX_VDISABLE) ? 0 : 1;
    311   1.1       cgd 
    312   1.1       cgd 	argc -= optind;
    313   1.1       cgd 	argv += optind;
    314   1.1       cgd 
    315   1.1       cgd 	if (argc) {
    316   1.1       cgd 		char *args[7], **argp = args;
    317   1.7  christos #ifdef __GNUC__
    318   1.7  christos 		(void) &argp;	/* avoid longjmp clobbering */
    319   1.7  christos #endif
    320   1.1       cgd 
    321   1.1       cgd 		if (argc > 2)
    322   1.1       cgd 			usage();
    323   1.1       cgd 		*argp++ = prompt;
    324   1.1       cgd 		if (user) {
    325   1.1       cgd 			*argp++ = "-l";
    326   1.1       cgd 			*argp++ = user;
    327   1.1       cgd 		}
    328   1.1       cgd 		*argp++ = argv[0];		/* host */
    329   1.1       cgd 		if (argc > 1)
    330   1.1       cgd 			*argp++ = argv[1];	/* port */
    331   1.1       cgd 		*argp = 0;
    332   1.1       cgd 
    333   1.1       cgd 		if (setjmp(toplevel) != 0)
    334   1.1       cgd 			Exit(0);
    335   1.1       cgd 		if (tn(argp - args, args) == 1)
    336   1.1       cgd 			return (0);
    337   1.1       cgd 		else
    338   1.1       cgd 			return (1);
    339   1.1       cgd 	}
    340   1.1       cgd 	(void)setjmp(toplevel);
    341   1.1       cgd 	for (;;) {
    342   1.1       cgd #ifdef TN3270
    343   1.1       cgd 		if (shell_active)
    344   1.1       cgd 			shell_continue();
    345   1.1       cgd 		else
    346   1.1       cgd #endif
    347   1.1       cgd 			command(1, 0, 0);
    348   1.1       cgd 	}
    349   1.1       cgd }
    350