1 /* $NetBSD: authenc.c,v 1.10 2003/06/18 20:51:00 christos 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 1.10 2003/06/18 20:51:00 christos 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(unsigned char *str, int len) 60 { 61 if (NETROOM() > len) { 62 ring_supply_data(&netoring, str, len); 63 if (str[0] == IAC && str[1] == SE) 64 printsub('>', &str[2], len-2); 65 return(len); 66 } 67 return(0); 68 } 69 70 void 71 net_encrypt(void) 72 { 73 #ifdef ENCRYPTION 74 if (encrypt_output) 75 ring_encrypt(&netoring, encrypt_output); 76 else 77 ring_clearto(&netoring); 78 #endif /* ENCRYPTION */ 79 } 80 81 int 82 telnet_spin(void) 83 { 84 return(-1); 85 } 86 87 char * 88 telnet_getenv(char *val) 89 { 90 return((char *)env_getvalue((unsigned char *)val)); 91 } 92 93 char * 94 telnet_gets(char *prompt, char *result, int length, int echo) 95 { 96 extern int globalmode; 97 int om = globalmode; 98 char *res; 99 100 TerminalNewMode(-1); 101 if (echo) { 102 printf("%s", prompt); 103 res = fgets(result, length, stdin); 104 } else if ((res = getpass(prompt)) != NULL) { 105 strncpy(result, res, length); 106 res = result; 107 } 108 TerminalNewMode(om); 109 return(res); 110 } 111 #endif /* defined(AUTHENTICATION) || defined(ENCRYPTION) */ 112