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. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #if 0 35 #ifndef lint 36 static const char sccsid[] = "@(#)authenc.c 8.1 (Berkeley) 6/6/93"; 37 #endif 38 #endif 39 #include <sys/cdefs.h> 40 __FBSDID("$FreeBSD$"); 41 42 #ifdef AUTHENTICATION 43 #ifdef ENCRYPTION 44 #include <sys/types.h> 45 #include <arpa/telnet.h> 46 #include <pwd.h> 47 #include <unistd.h> 48 #include <libtelnet/encrypt.h> 49 #include <libtelnet/misc.h> 50 51 #include "general.h" 52 #include "ring.h" 53 #include "externs.h" 54 #include "defines.h" 55 #include "types.h" 56 57 int 58 net_write(unsigned char *str, int len) 59 { 60 if (NETROOM() > len) { 61 ring_supply_data(&netoring, str, len); 62 if (str[0] == IAC && str[1] == SE) 63 printsub('>', &str[2], len-2); 64 return(len); 65 } 66 return(0); 67 } 68 69 void 70 net_encrypt(void) 71 { 72 #ifdef ENCRYPTION 73 if (encrypt_output) 74 ring_encrypt(&netoring, encrypt_output); 75 else 76 ring_clearto(&netoring); 77 #endif /* ENCRYPTION */ 78 } 79 80 int 81 telnet_spin(void) 82 { 83 return(-1); 84 } 85 86 char * 87 telnet_getenv(char *val) 88 { 89 return((char *)env_getvalue((unsigned char *)val)); 90 } 91 92 char * 93 telnet_gets(const char *prom, char *result, int length, int echo) 94 { 95 extern int globalmode; 96 int om = globalmode; 97 char *res; 98 99 TerminalNewMode(-1); 100 if (echo) { 101 printf("%s", prom); 102 res = fgets(result, length, stdin); 103 } else if ((res = getpass(prom))) { 104 strncpy(result, res, length); 105 res = result; 106 } 107 TerminalNewMode(om); 108 return(res); 109 } 110 #endif /* ENCRYPTION */ 111 #endif /* AUTHENTICATION */ 112