1 /*- 2 * Copyright (c) 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)authenc.c 8.1 (Berkeley) 6/6/93 30 * $FreeBSD: src/crypto/telnet/telnet/authenc.c,v 1.2.8.2 2002/04/13 10:59:08 markm Exp $ 31 * $DragonFly: src/crypto/telnet/telnet/authenc.c,v 1.2 2003/06/17 04:24:37 dillon Exp $ 32 */ 33 34 #ifdef AUTHENTICATION 35 #ifdef ENCRYPTION 36 #include <sys/types.h> 37 #include <arpa/telnet.h> 38 #include <pwd.h> 39 #include <unistd.h> 40 #include <libtelnet/encrypt.h> 41 #include <libtelnet/misc.h> 42 43 #include "general.h" 44 #include "ring.h" 45 #include "externs.h" 46 #include "defines.h" 47 #include "types.h" 48 49 int 50 net_write(unsigned char *str, int len) 51 { 52 if (NETROOM() > len) { 53 ring_supply_data(&netoring, str, len); 54 if (str[0] == IAC && str[1] == SE) 55 printsub('>', &str[2], len-2); 56 return(len); 57 } 58 return(0); 59 } 60 61 void 62 net_encrypt(void) 63 { 64 #ifdef ENCRYPTION 65 if (encrypt_output) 66 ring_encrypt(&netoring, encrypt_output); 67 else 68 ring_clearto(&netoring); 69 #endif /* ENCRYPTION */ 70 } 71 72 int 73 telnet_spin(void) 74 { 75 return(-1); 76 } 77 78 char * 79 telnet_getenv(char *val) 80 { 81 return((char *)env_getvalue((unsigned char *)val)); 82 } 83 84 char * 85 telnet_gets(const char *prom, char *result, int length, int echo) 86 { 87 extern int globalmode; 88 int om = globalmode; 89 char *res; 90 91 TerminalNewMode(-1); 92 if (echo) { 93 printf("%s", prom); 94 res = fgets(result, length, stdin); 95 } else if ((res = getpass(prom))) { 96 strncpy(result, res, length); 97 res = result; 98 } 99 TerminalNewMode(om); 100 return(res); 101 } 102 #endif /* ENCRYPTION */ 103 #endif /* AUTHENTICATION */ 104