109 lines
3.1 KiB
C
109 lines
3.1 KiB
C
/*****************************************************************************
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*
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* File ..................: bbs/pwcheck.c
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* Purpose ...............: Password checking routines
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* Last modification date : 08-Feb-1999
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*
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*****************************************************************************
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* Copyright (C) 1997-1999
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*
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* Michiel Broek FIDO: 2:2801/16
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* Beekmansbos 10 Internet: mbroek@ux123.pttnwb.nl
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* 1971 BV IJmuiden
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* the Netherlands
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*
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* This file is part of MBSE BBS.
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*
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* This BBS is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* MBSE BBS is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with MBSE BBS; see the file COPYING. If not, write to the Free
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* Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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*****************************************************************************/
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#include "../lib/libs.h"
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#include "../lib/mbse.h"
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#include "../lib/structs.h"
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#include "../lib/records.h"
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#include "../lib/common.h"
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#include "../lib/clcomm.h"
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#include "pwcheck.h"
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#include "funcs4.h"
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#include "timeout.h"
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/*
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* Open up /dev/tty to get the password from the user
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* because this is done in raw mode, it makes life a bit
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* more difficult.
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* This function gets a password from a user, upto CFG.max_passlen set above
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*/
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int Getpass(char *theword)
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{
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unsigned char c = 0;
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int counter = 0;
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char password[Max_passlen+1];
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/*
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* Open the device that we want to read the password from, you can't use
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* stdin as this might change in a pipe
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*/
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if ((ttyfd = open ("/dev/tty", O_RDWR)) < 0) {
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perror("open 7");
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ExitClient(1);
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}
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/* Set Raw mode so that the characters don't echo */
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Setraw();
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alarm_on();
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/*
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* Till the user presses ENTER or reaches the maximum length allowed
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*/
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while ((c != 13) && (counter < Max_passlen )) {
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c = Readkey(); /* Reads a character from the raw device */
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if (((c == 8) || (c == KEY_DEL) || (c == 127)) && (counter != 0 )) { /* If its a BACKSPACE */
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counter--;
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password[counter] = '\0';
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printf("\x008 \x008");
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fflush(stdout);
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continue;
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} /* Backtrack to fix the BACKSPACE */
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if (((c == 8) || (c == KEY_DEL) || (c == 127)) && (counter == 0) ) {
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printf("\x007");
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fflush(stdout);
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continue;
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} /* Don't Backtrack as we are at the begining of the passwd field */
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password[counter] = c;
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counter++;
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if (c > 32 && c < 127) { /* If its a normal character, display a . */
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printf("%c", CFG.iPasswd_Char);
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fflush(stdout);
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}
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}
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Unsetraw(); /* Go normal */
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close(ttyfd);
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if (counter == Max_passlen)
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password[counter] = '\0'; /* Make sure the string has a NULL at the end*/
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else
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password[counter-1] ='\0';
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strcpy(theword,password);
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return(0);
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}
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