/* * Copyright 2002 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* * 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 #include #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); } }