1 /* $NetBSD: authenc.c,v 1.12 2003/08/07 11:16:07 agc 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 #if 0 35 static char sccsid[] = "@(#)authenc.c 8.1 (Berkeley) 6/6/93"; 36 #else 37 __RCSID("$NetBSD: authenc.c,v 1.12 2003/08/07 11:16:07 agc Exp $"); 38 #endif 39 #endif /* not lint */ 40 41 #if defined(AUTHENTICATION) || defined(ENCRYPTION) 42 #include <unistd.h> 43 #include <sys/types.h> 44 #include <arpa/telnet.h> 45 #include <libtelnet/encrypt.h> 46 #include <libtelnet/misc.h> 47 48 #include "general.h" 49 #include "ring.h" 50 #include "externs.h" 51 #include "defines.h" 52 #include "types.h" 53 54 int 55 telnet_net_write(unsigned char *str, int len) 56 { 57 if (NETROOM() > len) { 58 ring_supply_data(&netoring, str, len); 59 if (str[0] == IAC && str[1] == SE) 60 printsub('>', &str[2], len-2); 61 return(len); 62 } 63 return(0); 64 } 65 66 void 67 net_encrypt(void) 68 { 69 #ifdef ENCRYPTION 70 if (encrypt_output) 71 ring_encrypt(&netoring, encrypt_output); 72 else 73 ring_clearto(&netoring); 74 #endif /* ENCRYPTION */ 75 } 76 77 int 78 telnet_spin(void) 79 { 80 return(-1); 81 } 82 83 char * 84 telnet_getenv(char *val) 85 { 86 return((char *)env_getvalue((unsigned char *)val)); 87 } 88 89 char * 90 telnet_gets(char *prompt, char *result, int length, int echo) 91 { 92 extern int globalmode; 93 int om = globalmode; 94 char *res; 95 96 TerminalNewMode(-1); 97 if (echo) { 98 printf("%s", prompt); 99 res = fgets(result, length, stdin); 100 } else if ((res = getpass(prompt)) != NULL) { 101 strlcpy(result, res, length); 102 res = result; 103 } 104 TerminalNewMode(om); 105 return(res); 106 } 107 #endif /* defined(AUTHENTICATION) || defined(ENCRYPTION) */ 108