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Annotation of src/usr.bin/telnet/authenc.c, Revision 1.5

1.5     ! hin         1: /*     $OpenBSD: authenc.c,v 1.4 2001/05/25 10:24:25 hin Exp $ */
1.2       niklas      2: /*     $NetBSD: authenc.c,v 1.5 1996/02/28 21:03:52 thorpej Exp $      */
                      3:
1.1       deraadt     4: /*-
                      5:  * Copyright (c) 1991, 1993
                      6:  *     The Regents of the University of California.  All rights reserved.
                      7:  *
                      8:  * Redistribution and use in source and binary forms, with or without
                      9:  * modification, are permitted provided that the following conditions
                     10:  * are met:
                     11:  * 1. Redistributions of source code must retain the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer.
                     13:  * 2. Redistributions in binary form must reproduce the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer in the
                     15:  *    documentation and/or other materials provided with the distribution.
                     16:  * 3. All advertising materials mentioning features or use of this software
                     17:  *    must display the following acknowledgement:
                     18:  *     This product includes software developed by the University of
                     19:  *     California, Berkeley and its contributors.
                     20:  * 4. Neither the name of the University nor the names of its contributors
                     21:  *    may be used to endorse or promote products derived from this software
                     22:  *    without specific prior written permission.
                     23:  *
                     24:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     25:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     26:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     27:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     28:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     29:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     30:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     31:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     32:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     33:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     34:  * SUCH DAMAGE.
                     35:  */
                     36:
1.5     ! hin        37: /*
        !            38: RCSID("$Id: authenc.c,v 1.11.4.1 2002/02/06 03:40:13 assar Exp $");
        !            39: */
        !            40:
1.3       art        41: #include "telnet_locl.h"
1.1       deraadt    42:
1.3       art        43: #if    defined(AUTHENTICATION) || defined(ENCRYPTION)
1.1       deraadt    44:
                     45:        int
1.4       hin        46: telnet_net_write(str, len)
1.1       deraadt    47:        unsigned char *str;
                     48:        int len;
                     49: {
                     50:        if (NETROOM() > len) {
                     51:                ring_supply_data(&netoring, str, len);
                     52:                if (str[0] == IAC && str[1] == SE)
                     53:                        printsub('>', &str[2], len-2);
                     54:                return(len);
                     55:        }
                     56:        return(0);
                     57: }
                     58:
                     59:        void
                     60: net_encrypt()
                     61: {
1.3       art        62: #if    defined(ENCRYPTION)
                     63:        if (encrypt_output)
                     64:                ring_encrypt(&netoring, encrypt_output);
                     65:        else
                     66:                ring_clearto(&netoring);
                     67: #endif
1.1       deraadt    68: }
                     69:
                     70:        int
                     71: telnet_spin()
                     72: {
1.5     ! hin        73:     extern int scheduler_lockout_tty;
        !            74:
        !            75:     scheduler_lockout_tty = 1;
        !            76:     Scheduler(0);
        !            77:     scheduler_lockout_tty = 0;
        !            78:
        !            79:     return 0;
        !            80:
1.1       deraadt    81: }
                     82:
                     83:        char *
                     84: telnet_getenv(val)
1.4       hin        85:        const char *val;
1.1       deraadt    86: {
                     87:        return((char *)env_getvalue((unsigned char *)val));
                     88: }
                     89:
                     90:        char *
                     91: telnet_gets(prompt, result, length, echo)
                     92:        char *prompt;
                     93:        char *result;
                     94:        int length;
                     95:        int echo;
                     96: {
                     97:        extern char *getpass();
                     98:        extern int globalmode;
                     99:        int om = globalmode;
                    100:        char *res;
                    101:
                    102:        TerminalNewMode(-1);
                    103:        if (echo) {
                    104:                printf("%s", prompt);
                    105:                res = fgets(result, length, stdin);
1.3       art       106:        } else if ((res = getpass(prompt))) {
1.1       deraadt   107:                strncpy(result, res, length);
                    108:                res = result;
                    109:        }
                    110:        TerminalNewMode(om);
                    111:        return(res);
                    112: }
                    113: #endif /* defined(AUTHENTICATION) */