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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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 1987 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984 AT&T */
/* All Rights Reserved */
#pragma ident "%Z%%M% %I% %E% SMI"
/*LINTLIBRARY*/
#include <stdio.h>
#include <signal.h>
#include <termios.h>
#include <unistd.h>
extern void setbuf();
extern int fclose(FILE *);
extern int fprintf(FILE *, char *, ...);
extern int findiop();
extern int ioctl();
static int intrupt;
static void catch(void);
#define MAXPASSWD 8 /* max significant characters in password */
char *
getpass(char *prompt)
{
struct termios ttyb;
long flags;
char *p;
int c;
FILE *fi;
static char pbuf[ MAXPASSWD + 1 ];
struct sigvec osv, sv;
if((fi = fopen("/dev/tty", "r")) == NULL)
#ifdef S5EMUL
return((char*)NULL);
#else
fi = stdin;
#endif
else
setbuf(fi, (char*)NULL);
sv.sv_handler = catch;
sv.sv_mask = 0;
sv.sv_flags = SV_INTERRUPT;
(void) sigvec(SIGINT, &sv, &osv);
intrupt = 0;
(void) ioctl(fileno(fi), TCGETS, &ttyb);
flags = ttyb.c_lflag;
ttyb.c_lflag &= ~(ECHO | ECHOE | ECHOK | ECHONL);
(void) ioctl(fileno(fi), TCSETSF, &ttyb);
(void) fputs(prompt, stderr);
p = pbuf;
while( !intrupt &&
(c = getc(fi)) != '\n' && c != '\r' && c != EOF ) {
if(p < &pbuf[ MAXPASSWD ])
*p++ = c;
}
*p = '\0';
ttyb.c_lflag = flags;
(void) ioctl(fileno(fi), TCSETSW, &ttyb);
(void) putc('\n', stderr);
(void) sigvec(SIGINT, &osv, (struct sigvec *)NULL);
if(fi != stdin)
(void) fclose(fi);
#ifdef S5EMUL /* XXX - BOTH versions should probably do this! */
if(intrupt)
(void) kill(getpid(), SIGINT);
#endif
return(pbuf);
}
static void
catch(void)
{
++intrupt;
}
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