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/* getpass.c -- get password from user */
/* $OpenLDAP: pkg/ldap/libraries/liblutil/getpass.c,v 1.13.2.3 2005/01/20 17:01:04 kurt Exp $ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 1998-2005 The OpenLDAP Foundation.
* Portions Copyright 1998-2003 Kurt D. Zeilenga.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
/* Portions Copyright (c) 1992, 1993 Regents of the University of Michigan.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that this notice is preserved and that due credit is given
* to the University of Michigan at Ann Arbor. The name of the University
* may not be used to endorse or promote products derived from this
* software without specific prior written permission. This software
* is provided ``as is'' without express or implied warranty.
*/
/* This work was originally developed by the University of Michigan
* and distributed as part of U-MICH LDAP. It was adapted for use in
* -llutil by Kurt D. Zeilenga.
*/
#include "portable.h"
#include <stdio.h>
#include <ac/stdlib.h>
#include <ac/ctype.h>
#include <ac/signal.h>
#include <ac/string.h>
#include <ac/termios.h>
#include <ac/time.h>
#include <ac/unistd.h>
#ifdef NEED_GETPASSPHRASE
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
#ifdef HAVE_CONIO_H
#include <conio.h>
#endif
#include <lber.h>
#include <ldap.h>
#include "ldap_defaults.h"
char *
lutil_getpass( const char *prompt )
{
#if !defined(HAVE_POSIX_TERMIOS) && !defined(HAVE_SGTTY_H)
static char buf[256];
int i, c;
if( prompt == NULL ) prompt = _("Password: ");
#ifdef DEBUG
if (debug & D_TRACE)
printf("->getpass(%s)\n", prompt);
#endif
printf("%s", prompt);
i = 0;
while ( (c = getch()) != EOF && c != '\n' && c != '\r' )
buf[i++] = c;
if ( c == EOF )
return( NULL );
buf[i] = '\0';
return (buf);
#else
int no_pass = 0;
char i, j, k;
TERMIO_TYPE ttyb;
TERMFLAG_TYPE flags;
static char pbuf[513];
register char *p;
register int c;
FILE *fi;
RETSIGTYPE (*sig)( int sig );
if( prompt == NULL ) prompt = _("Password: ");
#ifdef DEBUG
if (debug & D_TRACE)
printf("->getpass(%s)\n", prompt);
#endif
/*
* Stolen from the getpass() routine. Can't use the plain
* getpass() for two reasons. One is that LDAP passwords
* can be really, really long - much longer than 8 chars.
* The second is that we like to make this client available
* out of inetd via a Merit asynch port, and we need to be
* able to do telnet control codes to turn on and off line
* blanking.
*/
if ((fi = fdopen(open("/dev/tty", 2), "r")) == NULL)
fi = stdin;
else
setbuf(fi, (char *)NULL);
sig = SIGNAL (SIGINT, SIG_IGN);
if (fi != stdin) {
if (GETATTR(fileno(fi), &ttyb) < 0)
perror("GETATTR");
}
flags = GETFLAGS( ttyb );
SETFLAGS( ttyb, flags & ~ECHO );
if (fi != stdin) {
if (SETATTR(fileno(fi), &ttyb) < 0)
perror("SETATTR");
}
/* blank the line if through Merit */
if (fi == stdin) {
printf("%c%c%c", 255, 251, 1);
fflush(stdout);
(void) scanf("%c%c%c", &i, &j, &k);
fflush(stdin);
}
/* fetch the password */
fprintf(stdout, "%s", prompt);
fflush(stdout);
for (p=pbuf; (c = getc(fi))!='\n' && c!=EOF;) {
if (c == '\r')
break;
if (p < &pbuf[512])
*p++ = c;
}
if (c == EOF)
no_pass = 1;
else {
*p = '\0';
if (*(p - 1) == '\r')
*(p - 1) = '\0';
}
/* unblank the line if through Merit */
if (fi == stdin) {
printf("%c%c%c", 255, 252, 1);
fflush(stdout);
(void) scanf("%c%c%c", &i, &j, &k);
fflush(stdin);
printf("\n"); fflush(stdout);
}
fprintf(stdout, "\n");
fflush(stdout);
/* tidy up */
SETFLAGS( ttyb, flags );
if (fi != stdin) {
if (SETATTR(fileno(fi), &ttyb) < 0)
perror("SETATTR");
}
(void) SIGNAL (SIGINT, sig);
if (fi != stdin)
(void) fclose(fi);
else
i = getchar();
if (no_pass)
return(NULL);
return(pbuf);
#endif
}
#endif /* !NEED_GETPASSPHRASE */
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