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getpass.c revision 1.1.1.3 
      1 /*	$NetBSD: getpass.c,v 1.1.1.3 2010/12/12 15:22:08 adam Exp $	*/
      2 
      3 /* getpass.c -- get password from user */
      4 /* OpenLDAP: pkg/ldap/libraries/liblutil/getpass.c,v 1.17.2.7 2010/04/13 20:23:05 kurt Exp */
      5 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
      6  *
      7  * Copyright 1998-2010 The OpenLDAP Foundation.
      8  * Portions Copyright 1998-2003 Kurt D. Zeilenga.
      9  * All rights reserved.
     10  *
     11  * Redistribution and use in source and binary forms, with or without
     12  * modification, are permitted only as authorized by the OpenLDAP
     13  * Public License.
     14  *
     15  * A copy of this license is available in the file LICENSE in the
     16  * top-level directory of the distribution or, alternatively, at
     17  * <http://www.OpenLDAP.org/license.html>.
     18  */
     19 /* Portions Copyright (c) 1992, 1993  Regents of the University of Michigan.
     20  * All rights reserved.
     21  *
     22  * Redistribution and use in source and binary forms are permitted
     23  * provided that this notice is preserved and that due credit is given
     24  * to the University of Michigan at Ann Arbor. The name of the University
     25  * may not be used to endorse or promote products derived from this
     26  * software without specific prior written permission. This software
     27  * is provided ``as is'' without express or implied warranty.
     28  */
     29 /* This work was originally developed by the University of Michigan
     30  * and distributed as part of U-MICH LDAP.  It was adapted for use in
     31  * -llutil by Kurt D. Zeilenga and subsequently rewritten by Howard Chu.
     32  */
     33 
     34 #include "portable.h"
     35 
     36 #include <stdio.h>
     37 
     38 #include <ac/stdlib.h>
     39 
     40 #include <ac/ctype.h>
     41 #include <ac/signal.h>
     42 #include <ac/string.h>
     43 #include <ac/termios.h>
     44 #include <ac/time.h>
     45 #include <ac/unistd.h>
     46 
     47 #ifndef HAVE_GETPASSPHRASE
     48 
     49 #ifdef HAVE_FCNTL_H
     50 #include <fcntl.h>
     51 #endif
     52 
     53 #ifdef HAVE_CONIO_H
     54 #include <conio.h>
     55 #endif
     56 
     57 #include <lber.h>
     58 #include <ldap.h>
     59 
     60 #include "ldap_defaults.h"
     61 
     62 #define PBUF	512
     63 
     64 #ifdef HAVE_WINSOCK
     65 #define TTY "con:"
     66 #else
     67 #define TTY "/dev/tty"
     68 #endif
     69 
     70 char *
     71 lutil_getpass( const char *prompt )
     72 {
     73 	static char pbuf[PBUF];
     74 	FILE *fi;
     75 	int c;
     76 	unsigned i;
     77 #if defined(HAVE_TERMIOS_H) || defined(HAVE_SGTTY_H)
     78 	TERMIO_TYPE ttyb;
     79 	TERMFLAG_TYPE flags;
     80 	RETSIGTYPE (*sig)( int sig );
     81 #endif
     82 
     83 	if( prompt == NULL ) prompt = _("Password: ");
     84 
     85 #ifdef DEBUG
     86 	if (debug & D_TRACE)
     87 		printf("->getpass(%s)\n", prompt);
     88 #endif
     89 
     90 #if defined(HAVE_TERMIOS_H) || defined(HAVE_SGTTY_H)
     91 	if ((fi = fopen(TTY, "r")) == NULL)
     92 		fi = stdin;
     93 	else
     94 		setbuf(fi, (char *)NULL);
     95 	if (fi != stdin) {
     96 		if (GETATTR(fileno(fi), &ttyb) < 0)
     97 			perror("GETATTR");
     98 		sig = SIGNAL (SIGINT, SIG_IGN);
     99 		flags = GETFLAGS( ttyb );
    100 		SETFLAGS( ttyb, flags & ~ECHO );
    101 		if (SETATTR(fileno(fi), &ttyb) < 0)
    102 			perror("SETATTR");
    103 	}
    104 #else
    105 	fi = stdin;
    106 #endif
    107 	fprintf(stdout, "%s", prompt);
    108 	fflush(stdout);
    109 	i = 0;
    110 	while ( (c = getc(fi)) != EOF && c != '\n' && c != '\r' )
    111 		if ( i < (sizeof(pbuf)-1) )
    112 			pbuf[i++] = c;
    113 #if defined(HAVE_TERMIOS_H) || defined(HAVE_SGTTY_H)
    114 	/* tidy up */
    115 	if (fi != stdin) {
    116 		fprintf(stdout, "\n");
    117 		fflush(stdout);
    118 		SETFLAGS( ttyb, flags );
    119 		if (SETATTR(fileno(fi), &ttyb) < 0)
    120 			perror("SETATTR");
    121 		(void) SIGNAL (SIGINT, sig);
    122 		(void) fclose(fi);
    123 	}
    124 #endif
    125 	if ( c == EOF )
    126 		return( NULL );
    127 	pbuf[i] = '\0';
    128 	return (pbuf);
    129 }
    130 
    131 #endif /* !NEED_GETPASSPHRASE */
    132