1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 /* Copyright (c) 1988 AT&T */ 29 /* All Rights Reserved */ 30 31 32 #pragma weak getpass = _getpass 33 #pragma weak getpassphrase = _getpassphrase 34 35 #include "synonyms.h" 36 #include "file64.h" 37 #include "mtlib.h" 38 #include <stdio.h> 39 #include <sys/types.h> 40 #include <signal.h> 41 #include <unistd.h> 42 #include <stropts.h> 43 #include <termio.h> 44 #include <thread.h> 45 #include <synch.h> 46 #include "libc.h" 47 #include "stdiom.h" 48 #include "tsd.h" 49 50 static int intrupt; 51 static char *__getpass(const char *, int); 52 53 #define MAXPASSWD 256 /* max significant characters in password */ 54 #define SMLPASSWD 8 /* unix standard characters in password */ 55 56 57 char * 58 getpass(const char *prompt) 59 { 60 return ((char *)__getpass(prompt, SMLPASSWD)); 61 } 62 63 char * 64 getpassphrase(const char *prompt) 65 { 66 return ((char *)__getpass(prompt, MAXPASSWD)); 67 } 68 69 static char * 70 __getpass(const char *prompt, int size) 71 { 72 struct termio ttyb; 73 unsigned short flags; 74 char *p; 75 int c; 76 FILE *fi; 77 char *pbuf = tsdalloc(_T_GETPASS, MAXPASSWD + 1, NULL); 78 struct sigaction act, osigint, osigtstp; 79 static void catch(int); 80 81 if (pbuf == NULL || 82 (fi = fopen("/dev/tty", "r+F")) == NULL) 83 return (NULL); 84 setbuf(fi, NULL); 85 86 intrupt = 0; 87 act.sa_flags = 0; 88 act.sa_handler = catch; 89 (void) sigemptyset(&act.sa_mask); 90 (void) sigaction(SIGINT, &act, &osigint); /* trap interrupt */ 91 act.sa_handler = SIG_IGN; 92 (void) sigaction(SIGTSTP, &act, &osigtstp); /* ignore stop */ 93 (void) ioctl(fileno(fi), TCGETA, &ttyb); 94 flags = ttyb.c_lflag; 95 ttyb.c_lflag &= ~(ECHO | ECHOE | ECHOK | ECHONL); 96 (void) ioctl(fileno(fi), TCSETAF, &ttyb); 97 98 (void) fputs(prompt, fi); 99 p = pbuf; 100 while (!intrupt && 101 (c = GETC(fi)) != '\n' && c != '\r' && c != EOF) { 102 if (p < &pbuf[ size ]) 103 *p++ = (char)c; 104 } 105 *p = '\0'; 106 (void) PUTC('\n', fi); 107 108 ttyb.c_lflag = flags; 109 (void) ioctl(fileno(fi), TCSETAW, &ttyb); 110 (void) sigaction(SIGINT, &osigint, NULL); 111 (void) sigaction(SIGTSTP, &osigtstp, NULL); 112 (void) fclose(fi); 113 if (intrupt) { /* if interrupted erase the input */ 114 pbuf[0] = '\0'; 115 (void) kill(getpid(), SIGINT); 116 } 117 return (pbuf); 118 } 119 120 /* ARGSUSED */ 121 static void 122 catch(int x) 123 { 124 intrupt = 1; 125 } 126