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 30 #if 0 31 #ifndef lint 32 static const char sccsid[] = "@(#)authenc.c 8.1 (Berkeley) 6/6/93"; 33 #endif 34 #endif 35 #include <sys/cdefs.h> 36 __FBSDID("$FreeBSD$"); 37 38 #ifdef AUTHENTICATION 39 #ifdef ENCRYPTION 40 #include <sys/types.h> 41 #include <arpa/telnet.h> 42 #include <pwd.h> 43 #include <unistd.h> 44 #include <libtelnet/encrypt.h> 45 #include <libtelnet/misc.h> 46 47 #include "general.h" 48 #include "ring.h" 49 #include "externs.h" 50 #include "defines.h" 51 #include "types.h" 52 53 int 54 net_write(unsigned char *str, int len) 55 { 56 if (NETROOM() > len) { 57 ring_supply_data(&netoring, str, len); 58 if (str[0] == IAC && str[1] == SE) 59 printsub('>', &str[2], len-2); 60 return(len); 61 } 62 return(0); 63 } 64 65 void 66 net_encrypt(void) 67 { 68 #ifdef ENCRYPTION 69 if (encrypt_output) 70 ring_encrypt(&netoring, encrypt_output); 71 else 72 ring_clearto(&netoring); 73 #endif /* ENCRYPTION */ 74 } 75 76 int 77 telnet_spin(void) 78 { 79 return(-1); 80 } 81 82 char * 83 telnet_getenv(char *val) 84 { 85 return((char *)env_getvalue((unsigned char *)val)); 86 } 87 88 char * 89 telnet_gets(const char *prom, char *result, int length, int echo) 90 { 91 extern int globalmode; 92 int om = globalmode; 93 char *res; 94 95 TerminalNewMode(-1); 96 if (echo) { 97 printf("%s", prom); 98 res = fgets(result, length, stdin); 99 } else if ((res = getpass(prom))) { 100 strncpy(result, res, length); 101 res = result; 102 } 103 TerminalNewMode(om); 104 return(res); 105 } 106 #endif /* ENCRYPTION */ 107 #endif /* AUTHENTICATION */ 108