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 */ 32 33 #ifdef AUTHENTICATION 34 #ifdef ENCRYPTION 35 #include <sys/types.h> 36 #include <arpa/telnet.h> 37 #include <pwd.h> 38 #include <unistd.h> 39 #include <libtelnet/encrypt.h> 40 #include <libtelnet/misc.h> 41 42 #include "general.h" 43 #include "ring.h" 44 #include "externs.h" 45 #include "defines.h" 46 #include "types.h" 47 48 int 49 net_write(unsigned char *str, int len) 50 { 51 if (NETROOM() > len) { 52 ring_supply_data(&netoring, str, len); 53 if (str[0] == IAC && str[1] == SE) 54 printsub('>', &str[2], len-2); 55 return(len); 56 } 57 return(0); 58 } 59 60 void 61 net_encrypt(void) 62 { 63 #ifdef ENCRYPTION 64 if (encrypt_output) 65 ring_encrypt(&netoring, encrypt_output); 66 else 67 ring_clearto(&netoring); 68 #endif /* ENCRYPTION */ 69 } 70 71 int 72 telnet_spin(void) 73 { 74 return(-1); 75 } 76 77 char * 78 telnet_getenv(char *val) 79 { 80 return((char *)env_getvalue((unsigned char *)val)); 81 } 82 83 char * 84 telnet_gets(const char *prom, char *result, int length, int echo) 85 { 86 extern int globalmode; 87 int om = globalmode; 88 char *res; 89 90 TerminalNewMode(-1); 91 if (echo) { 92 printf("%s", prom); 93 res = fgets(result, length, stdin); 94 } else if ((res = getpass(prom))) { 95 strncpy(result, res, length); 96 res = result; 97 } 98 TerminalNewMode(om); 99 return(res); 100 } 101 #endif /* ENCRYPTION */ 102 #endif /* AUTHENTICATION */ 103