1/* getpass.c -- get password from user */
2/* $OpenLDAP$ */
3/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 *
5 * Copyright 1998-2011 The OpenLDAP Foundation.
6 * Portions Copyright 1998-2003 Kurt D. Zeilenga.
7 * Portions Copyright 2009 Howard Chu.
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted only as authorized by the OpenLDAP
12 * Public License.
13 *
14 * A copy of this license is available in the file LICENSE in the
15 * top-level directory of the distribution or, alternatively, at
16 * <http://www.OpenLDAP.org/license.html>.
17 */
18/* Portions Copyright (c) 1992, 1993  Regents of the University of Michigan.
19 * All rights reserved.
20 *
21 * Redistribution and use in source and binary forms are permitted
22 * provided that this notice is preserved and that due credit is given
23 * to the University of Michigan at Ann Arbor. The name of the University
24 * may not be used to endorse or promote products derived from this
25 * software without specific prior written permission. This software
26 * is provided ``as is'' without express or implied warranty.
27 */
28/* This work was originally developed by the University of Michigan
29 * and distributed as part of U-MICH LDAP.  It was adapted for use in
30 * -llutil by Kurt D. Zeilenga and subsequently rewritten by Howard Chu.
31 */
32
33#include "portable.h"
34
35#include <stdio.h>
36
37#include <ac/stdlib.h>
38
39#include <ac/ctype.h>
40#include <ac/signal.h>
41#include <ac/string.h>
42#include <ac/termios.h>
43#include <ac/time.h>
44#include <ac/unistd.h>
45
46#ifndef HAVE_GETPASSPHRASE
47
48#ifdef HAVE_FCNTL_H
49#include <fcntl.h>
50#endif
51
52#ifdef HAVE_CONIO_H
53#include <conio.h>
54#endif
55
56#include <lber.h>
57#include <ldap.h>
58
59#include "ldap_defaults.h"
60
61#define PBUF	512
62
63#ifdef HAVE_WINSOCK
64#define TTY "con:"
65#else
66#define TTY "/dev/tty"
67#endif
68
69char *
70lutil_getpass( const char *prompt )
71{
72	static char pbuf[PBUF];
73	FILE *fi;
74	int c;
75	unsigned i;
76#if defined(HAVE_TERMIOS_H) || defined(HAVE_SGTTY_H)
77	TERMIO_TYPE ttyb;
78	TERMFLAG_TYPE flags;
79	RETSIGTYPE (*sig)( int sig );
80#endif
81
82	if( prompt == NULL ) prompt = _("Password: ");
83
84#ifdef DEBUG
85	if (debug & D_TRACE)
86		printf("->getpass(%s)\n", prompt);
87#endif
88
89#if defined(HAVE_TERMIOS_H) || defined(HAVE_SGTTY_H)
90	if ((fi = fopen(TTY, "r")) == NULL)
91		fi = stdin;
92	else
93		setbuf(fi, (char *)NULL);
94	if (fi != stdin) {
95		if (GETATTR(fileno(fi), &ttyb) < 0)
96			perror("GETATTR");
97		sig = SIGNAL (SIGINT, SIG_IGN);
98		flags = GETFLAGS( ttyb );
99		SETFLAGS( ttyb, flags & ~ECHO );
100		if (SETATTR(fileno(fi), &ttyb) < 0)
101			perror("SETATTR");
102	}
103#else
104	fi = stdin;
105#endif
106	fprintf(stderr, "%s", prompt);
107	fflush(stderr);
108	i = 0;
109	while ( (c = getc(fi)) != EOF && c != '\n' && c != '\r' )
110		if ( i < (sizeof(pbuf)-1) )
111			pbuf[i++] = c;
112#if defined(HAVE_TERMIOS_H) || defined(HAVE_SGTTY_H)
113	/* tidy up */
114	if (fi != stdin) {
115		fprintf(stderr, "\n");
116		fflush(stderr);
117		SETFLAGS( ttyb, flags );
118		if (SETATTR(fileno(fi), &ttyb) < 0)
119			perror("SETATTR");
120		(void) SIGNAL (SIGINT, sig);
121		(void) fclose(fi);
122	}
123#endif
124	if ( c == EOF )
125		return( NULL );
126	pbuf[i] = '\0';
127	return (pbuf);
128}
129
130#endif /* !NEED_GETPASSPHRASE */
131