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