1 /* $NetBSD: authenc.c,v 1.9 2000/06/22 06:47:48 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 #if 0 39 static char sccsid[] = "@(#)authenc.c 8.1 (Berkeley) 6/6/93"; 40 #else 41 __RCSID("$NetBSD: authenc.c,v 1.9 2000/06/22 06:47:48 thorpej Exp $"); 42 #endif 43 #endif /* not lint */ 44 45 #if defined(AUTHENTICATION) || defined(ENCRYPTION) 46 #include <unistd.h> 47 #include <sys/types.h> 48 #include <arpa/telnet.h> 49 #include <libtelnet/encrypt.h> 50 #include <libtelnet/misc.h> 51 52 #include "general.h" 53 #include "ring.h" 54 #include "externs.h" 55 #include "defines.h" 56 #include "types.h" 57 58 int 59 telnet_net_write(str, len) 60 unsigned char *str; 61 int len; 62 { 63 if (NETROOM() > len) { 64 ring_supply_data(&netoring, str, len); 65 if (str[0] == IAC && str[1] == SE) 66 printsub('>', &str[2], len-2); 67 return(len); 68 } 69 return(0); 70 } 71 72 void 73 net_encrypt() 74 { 75 #ifdef ENCRYPTION 76 if (encrypt_output) 77 ring_encrypt(&netoring, encrypt_output); 78 else 79 ring_clearto(&netoring); 80 #endif /* ENCRYPTION */ 81 } 82 83 int 84 telnet_spin() 85 { 86 return(-1); 87 } 88 89 char * 90 telnet_getenv(val) 91 char *val; 92 { 93 return((char *)env_getvalue((unsigned char *)val)); 94 } 95 96 char * 97 telnet_gets(prompt, result, length, echo) 98 char *prompt; 99 char *result; 100 int length; 101 int echo; 102 { 103 extern int globalmode; 104 int om = globalmode; 105 char *res; 106 107 TerminalNewMode(-1); 108 if (echo) { 109 printf("%s", prompt); 110 res = fgets(result, length, stdin); 111 } else if ((res = getpass(prompt)) != NULL) { 112 strncpy(result, res, length); 113 res = result; 114 } 115 TerminalNewMode(om); 116 return(res); 117 } 118 #endif /* defined(AUTHENTICATION) || defined(ENCRYPTION) */ 119