146 lines
4.3 KiB
C
146 lines
4.3 KiB
C
/*-
|
|
* Copyright (c) 1992, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef lint
|
|
static char sccsid[] = "@(#)read_password.c 8.2 (Berkeley) 12/15/93";
|
|
#endif /* not lint */
|
|
|
|
/*
|
|
* $Source: /mit/kerberos/src/lib/des/RCS/read_password.c,v $
|
|
* $Author: jon $
|
|
*
|
|
* Copyright 1985, 1986, 1987, 1988 by the Massachusetts Institute
|
|
* of Technology.
|
|
*
|
|
* For copying and distribution information, please see the file
|
|
* <mit-copyright.h>.
|
|
*
|
|
* This routine prints the supplied string to standard
|
|
* output as a prompt, and reads a password string without
|
|
* echoing.
|
|
*/
|
|
|
|
#if defined(RSA_ENCPWD) || defined(KRB4_ENCPWD)
|
|
|
|
#include <stdio.h>
|
|
#include <strings.h>
|
|
#include <sys/ioctl.h>
|
|
#include <signal.h>
|
|
#include <setjmp.h>
|
|
|
|
static jmp_buf env;
|
|
|
|
/*** Routines ****************************************************** */
|
|
/*
|
|
* This version just returns the string, doesn't map to key.
|
|
*
|
|
* Returns 0 on success, non-zero on failure.
|
|
*/
|
|
|
|
int
|
|
local_des_read_pw_string(s,max,prompt,verify)
|
|
char *s;
|
|
int max;
|
|
char *prompt;
|
|
int verify;
|
|
{
|
|
int ok = 0;
|
|
char *ptr;
|
|
|
|
jmp_buf old_env;
|
|
struct sgttyb tty_state;
|
|
char key_string[BUFSIZ];
|
|
|
|
if (max > BUFSIZ) {
|
|
return -1;
|
|
}
|
|
|
|
/* XXX assume jmp_buf is typedef'ed to an array */
|
|
bcopy((char *)old_env, (char *)env, sizeof(env));
|
|
if (setjmp(env))
|
|
goto lose;
|
|
|
|
/* save terminal state*/
|
|
if (ioctl(0,TIOCGETP,(char *)&tty_state) == -1)
|
|
return -1;
|
|
/*
|
|
push_signals();
|
|
*/
|
|
/* Turn off echo */
|
|
tty_state.sg_flags &= ~ECHO;
|
|
if (ioctl(0,TIOCSETP,(char *)&tty_state) == -1)
|
|
return -1;
|
|
while (!ok) {
|
|
(void) printf(prompt);
|
|
(void) fflush(stdout);
|
|
while (!fgets(s, max, stdin));
|
|
|
|
if ((ptr = index(s, '\n')))
|
|
*ptr = '\0';
|
|
if (verify) {
|
|
printf("\nVerifying, please re-enter %s",prompt);
|
|
(void) fflush(stdout);
|
|
if (!fgets(key_string, sizeof(key_string), stdin)) {
|
|
clearerr(stdin);
|
|
continue;
|
|
}
|
|
if ((ptr = index(key_string, '\n')))
|
|
*ptr = '\0';
|
|
if (strcmp(s,key_string)) {
|
|
printf("\n\07\07Mismatch - try again\n");
|
|
(void) fflush(stdout);
|
|
continue;
|
|
}
|
|
}
|
|
ok = 1;
|
|
}
|
|
|
|
lose:
|
|
if (!ok)
|
|
bzero(s, max);
|
|
printf("\n");
|
|
/* turn echo back on */
|
|
tty_state.sg_flags |= ECHO;
|
|
if (ioctl(0,TIOCSETP,(char *)&tty_state))
|
|
ok = 0;
|
|
/*
|
|
pop_signals();
|
|
*/
|
|
bcopy((char *)env, (char *)old_env, sizeof(env));
|
|
if (verify)
|
|
bzero(key_string, sizeof (key_string));
|
|
s[max-1] = 0; /* force termination */
|
|
return !ok; /* return nonzero if not okay */
|
|
}
|
|
#endif /* defined(RSA_ENCPWD) || defined(KRB4_ENCPWD) */
|