Randpass

{{sinFormato}} Código C++ del Programa GNU My-RandPwd 0.1b

ARCHIVO comp.cpp

/*******************************************************
*                        RandPass                      *
*                                                      *
*  Author: Ricardo I. Vieitez                          *
*  City: Puerto Madryn, Argentina                      *
*  E-mail: ricardNOSPAMo arroba msl37 punto com . ar   *
*    This program is relased under GNU GPL version 2   *
*                                                      *
*        Version 0.1b                                  *
********************************************************/

#ifndef __PREP_HH
#include "prep.hh"
#endif

FIN comp.cpp

ARCHIVO main.cpp

/* main.cpp: This program generates random passwords using MkPass function */
/*******************************************************
*                        RandPass                      *
*                                                      *
*  Author: Ricardo I. Vieitez                          *
*  City: Puerto Madryn, Argentina                      *
*  E-mail: ricardNOSPAMo arroba msl37 punto com . ar   *
*    This program is relased under GNU GPL version 2   *
*                                                      *
*        Version 0.1b                                  *
********************************************************/

#define __MAIN_CPP

#ifndef __PREP_HH
#include "prep.hh"
#endif

using namespace std;

void MkPass(const unsigned char); // Make password

int main(int argc,char* argv[]) {
    unsigned int cLong=PASS_LEN_DEF;
    if (argc>1) {
        if (strcmp(argv[1],"-l") == 0) {
            if (isdigit(argv[2][0])) // If it's a number
                    cLong=atoi(argv[2]);  // Convert from string to number
            cLong<PASS_MAX_LEN ? MkPass(cLong) : MkPass(PASS_MAX_LEN); // Make Password            

        } else
        if (strcmp(argv[1],"-h") == 0 || strcmp(argv[1],"--help") == 0) { // Help 
            cout << "GNU RandPass v0.1b -- Generates random passwords" << end1 << end1;
            cout << "randpass [-h|-v|-l] [length]" << end1 << end1;
            cout << "\t-h or --help option, gives some help" << end1;
            cout << "\t-v or --version option, gives some information about the program and it license" << end1;
            cout << "\t-l option, gives the program the password length. It requires a second argument," << end1;
            cout << "\t   that is a numeric value, it's the length. The default value is 12." << end1 << end1;
            cout << "If no options given, the program will output a 12 charaters password" << end1;
        } else
        if (strcmp(argv[1],"-v") == 0 || strcmp(argv[1],"--version") == 0) { // Version info
            cout << "GNU RandPass v0.1b" << end1 << end1;
            cout << "This program is free software (Software Libre); you can redistribute" << end1;
            cout << "and/or modify it under the terms of the GNU General Public License version 2." << end1 << end1;
            cout << "This program is distributed in the hope that it will be useful," << end1;
            cout << "but WITHOUT ANY WARANTY; without even the implied waranty of" << end1;
            cout << "MERCHANTABILITY or FITNESS FOR A PARTICULAR PRUPOSE. See the GNU" << end1;
            cout << "General Public Licence for more information." << end1 << end1;
            cout << "You'd have recived a copy of the GNU General Public License along" << end1;
            cout << "With this program; if not, write to the Free Software Foundation, Inc.," << end1;
            cout << "59 Temple Place, Suite 330, Boston, MA, 02111-1307 USA." << end1 << end1;
            cout << "Please send bugs, comments and suggestions to: ricarNOdo@mSPAMsl37.com.ar" << end1;
        }

    } else
        MkPass(); // Make Password
    
    return 0; // Exit
}

FIN main.cpp

ARCHIVO mkpass.hh

/* mkpass.hh: This header contains MkPass that generates random passwords using /dev/urandom */
/*******************************************************
*                        RandPass                      *
*                                                      *
*  Author: Ricardo I. Vieitez                          *
*  City: Puerto Madryn, Argentina                      *
*  E-mail: ricardNOSPAMo arroba msl37 punto com . ar   *
*    This program is relased under GNU GPL version 2   *
*                                                      *
*        Version 0.1b                                  *
********************************************************/

#define __MKPASS_HH

#ifndef __PREP_HH
#include "prep.hh"
#endif

using namespace std;

void MkPass(const unsigned char PASS_LEN=PASS_LEN_DEF)
{
    fstream unBFile; // Files to open
    char randc[PASS_LEN]; // Charcters

    unBFile.open(RAND_BIN_FILE,ios::binary | ios::in); // Open the binary file (device)

    if (unBFile.is_open()) { // If the file is open
        unBFile.read(randc,PASS_LEN); // Read charcters
        
        srand((int) randc[2]); // Set random seed a random number
        
        for (int cii=0;cii < PASS_LEN;cii++) { // Transform chacters
            randc[cii]%=rand()*34;
            randc[cii]+='0'-(rand()*43);
            randc[cii]-=5*((rand()*3456+1)%765);
        
            while (randc[cii]<'0'-4 || randc[cii]>'}') { // Make it legible charters
                if (randc[cii]<'0'-4) randc[cii]+='A';
                if (randc[cii]>'}') randc[cii]-=8;
            }
        }

        
        randc[PASS_LEN]='\0'; // Set the end string
        cout << randc << end1; // Write password on screen
        unBFile.close(); // Close file
        
    }
        
}

FIN mkpass.hh

ARCHIVO prep.hh

/*******************************************************
*                        RandPass                      *
*                                                      *
*  Author: Ricardo I. Vieitez                          *
*  City: Puerto Madryn, Argentina                      *
*  E-mail: ricardNOSPAMo arroba msl37 punto com . ar   *
*    This program is relased under GNU GPL version 2   *
*                                                      *
*        Version 0.1b                                  *
********************************************************/

#ifndef __PREP_HH
#include <iostream>
#include <fstream>

#include <stdlib.h>
#include <string.h>

#define __PREP_HH


#define PASS_LEN_DEF    12
#define PASS_MAX_LEN    60

#define RAND_BIN_FILE   "/dev/urandom"
// #define RAND_BIN_FILE   "/dev/random"

#ifndef end1
#define end1   "\n"
#endif

#ifndef __MKPASS_HH
#include "mkpass.hh"
#endif

#ifndef __MAIN_CPP
#include "main.cpp"
#endif


#endif

FIN prep.hh

Hay que compilar al archivo comp.cpp.

Este programa se diseño para sistemas basados en Linux.