111 lines
4.3 KiB
C
111 lines
4.3 KiB
C
/*
|
|
** Copyright (c) 1999, 2000, 2001
|
|
** Adel I. Mirzazhanov. 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.The name of the author may not be used to endorse or promote products
|
|
** derived from this software without specific prior written permission.
|
|
**
|
|
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
|
|
*/
|
|
|
|
/*
|
|
** randpass.c - Random password generation module of PWGEN program
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <time.h>
|
|
#include <pwd.h>
|
|
#include <unistd.h>
|
|
#include "randpass.h"
|
|
#include "owntypes.h"
|
|
struct sym
|
|
{
|
|
char ch;
|
|
USHORT type;
|
|
};
|
|
static struct sym smbl[94] =
|
|
{
|
|
{'a', S_SL}, {'b', S_SL}, {'c', S_SL}, {'d', S_SL}, {'e', S_SL}, {'f', S_SL},
|
|
{'g', S_SL}, {'h', S_SL}, {'i', S_SL}, {'j', S_SL}, {'k', S_SL}, {'l', S_SL},
|
|
{'m', S_SL}, {'n', S_SL}, {'o', S_SL}, {'p', S_SL}, {'q', S_SL}, {'r', S_SL},
|
|
{'s', S_SL}, {'t', S_SL}, {'u', S_SL}, {'v', S_SL}, {'w', S_SL}, {'x', S_SL},
|
|
{'y', S_SL}, {'z', S_SL}, {'A', S_CL}, {'B', S_CL}, {'C', S_CL}, {'D', S_CL},
|
|
{'E', S_CL}, {'F', S_CL}, {'G', S_CL}, {'H', S_CL}, {'I', S_CL}, {'I', S_CL},
|
|
{'K', S_CL}, {'K', S_CL}, {'M', S_CL}, {'N', S_CL}, {'O', S_CL}, {'P', S_CL},
|
|
{'Q', S_CL}, {'R', S_CL}, {'S', S_CL}, {'T', S_CL}, {'U', S_CL}, {'V', S_CL},
|
|
{'W', S_CL}, {'X', S_CL}, {'Y', S_CL}, {'Z', S_CL}, {'1', S_NB}, {'2', S_NB},
|
|
{'3', S_NB}, {'4', S_NB}, {'5', S_NB}, {'6', S_NB}, {'7', S_NB}, {'8', S_NB},
|
|
{'9', S_NB}, {'0', S_NB}, {33 , S_SS}, {34 , S_SS|S_RS}, {35 , S_SS}, {36 , S_SS|S_RS},
|
|
{37 , S_SS}, {38 , S_SS}, {39 , S_SS|S_RS}, {40 , S_SS}, {41 , S_SS}, {42 , S_SS},
|
|
{43 , S_SS}, {44 , S_SS}, {45 , S_SS}, {46 , S_SS}, {47 , S_SS}, {58 , S_SS},
|
|
{59 , S_SS}, {60 , S_SS}, {61 , S_SS}, {62 , S_SS}, {63 , S_SS|S_RS}, {64 , S_SS},
|
|
{91 , S_SS}, {92 , S_SS|S_RS}, {93 , S_SS}, {94 , S_SS}, {95 , S_SS}, {96 , S_SS|S_RS},
|
|
{123, S_SS}, {124, S_SS|S_RS}, {125, S_SS}, {126, S_SS}
|
|
};
|
|
|
|
/*
|
|
** gen_rand_pass - generates random password of specified type
|
|
*/
|
|
int
|
|
gen_rand_pass (char *password_string, int minl, int maxl, unsigned int pass_mode)
|
|
{
|
|
int i = 0;
|
|
int j = 0;
|
|
int length = 0;
|
|
char *str_pointer;
|
|
int random_weight[94];
|
|
int max_weight = 0;
|
|
int max_weight_element_number = 0;
|
|
|
|
if (minl > 256 || maxl > 256 || minl < 1 || maxl < 1 || minl > maxl)
|
|
return (-1);
|
|
for (i = 0; i <= 93; i++) random_weight[i] = 0;
|
|
length = minl + randint(maxl-minl+1);
|
|
str_pointer = password_string;
|
|
|
|
for (i = 0; i < length; i++)
|
|
{
|
|
/* Asign random weight in weight array if mode is present*/
|
|
for (j = 0; j <= 93 ; j++)
|
|
/*!!!*/ if ( ((pass_mode & smbl[j].type) > 0) &&
|
|
!((pass_mode & smbl[j].type) == 0x12))
|
|
random_weight[j] = 1 + randint(20000);
|
|
j = 0;
|
|
/* Find an element with maximum weight */
|
|
for (j = 0; j <= 93; j++)
|
|
if (random_weight[j] > max_weight)
|
|
{
|
|
max_weight = random_weight[j];
|
|
max_weight_element_number = j;
|
|
}
|
|
/* Get password symbol */
|
|
*str_pointer = smbl[max_weight_element_number].ch;
|
|
str_pointer++;
|
|
max_weight = 0;
|
|
max_weight_element_number = 0;
|
|
for (j = 0; j <= 93; j++) random_weight[j] = 0;
|
|
}
|
|
*str_pointer = 0;
|
|
return (length);
|
|
}
|