/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
#pragma weak _getpass = getpass
#pragma weak _getpassphrase = getpassphrase
#include "lint.h"
#include "file64.h"
#include "mtlib.h"
#include <stdio.h>
#include <sys/types.h>
#include <signal.h>
#include <unistd.h>
#include <stropts.h>
#include <termio.h>
#include <thread.h>
#include <synch.h>
#include "libc.h"
#include "stdiom.h"
#include "tsd.h"
static int intrupt;
static char *__getpass(const char *, int);
#define MAXPASSWD 256 /* max significant characters in password */
#define SMLPASSWD 8 /* unix standard characters in password */
char *
getpass(const char *prompt)
{
return ((char *)__getpass(prompt, SMLPASSWD));
}
char *
getpassphrase(const char *prompt)
{
return ((char *)__getpass(prompt, MAXPASSWD));
}
static void catch(int);
static char *
__getpass(const char *prompt, int size)
{
struct termio ttyb;
unsigned short flags;
char *p;
int c;
FILE *fi;
char *pbuf = tsdalloc(_T_GETPASS, MAXPASSWD + 1, NULL);
struct sigaction act, osigint, osigtstp;
if (pbuf == NULL ||
(fi = fopen("/dev/tty", "r+F")) == NULL)
return (NULL);
setbuf(fi, NULL);
intrupt = 0;
act.sa_flags = 0;
act.sa_handler = catch;
(void) sigemptyset(&act.sa_mask);
(void) sigaction(SIGINT, &act, &osigint); /* trap interrupt */
act.sa_handler = SIG_IGN;
(void) sigaction(SIGTSTP, &act, &osigtstp); /* ignore stop */
(void) ioctl(fileno(fi), TCGETA, &ttyb);
flags = ttyb.c_lflag;
ttyb.c_lflag &= ~(ECHO | ECHOE | ECHOK | ECHONL);
(void) ioctl(fileno(fi), TCSETAF, &ttyb);
(void) fputs(prompt, fi);
p = pbuf;
while (!intrupt &&
(c = GETC(fi)) != '\n' && c != '\r' && c != EOF) {
if (p < &pbuf[ size ])
*p++ = (char)c;
}
*p = '\0';
(void) PUTC('\n', fi);
ttyb.c_lflag = flags;
(void) ioctl(fileno(fi), TCSETAW, &ttyb);
(void) sigaction(SIGINT, &osigint, NULL);
(void) sigaction(SIGTSTP, &osigtstp, NULL);
(void) fclose(fi);
if (intrupt) { /* if interrupted erase the input */
pbuf[0] = '\0';
(void) kill(getpid(), SIGINT);
}
return (pbuf);
}
/* ARGSUSED */
static void
catch(int x)
{
intrupt = 1;
}