1 | /**********************************************************************
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2 | *
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3 | * getpw.cpp --
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4 | * A component of the Greenstone digital library software
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5 | * from the New Zealand Digital Library Project at the
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6 | * University of Waikato, New Zealand.
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7 | *
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8 | * Copyright (C) 2000 The New Zealand Digital Library Project
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9 | *
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10 | * This program is free software; you can redistribute it and/or modify
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11 | * it under the terms of the GNU General Public License as published by
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12 | * the Free Software Foundation; either version 2 of the License, or
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13 | * (at your option) any later version.
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14 | *
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15 | * This program is distributed in the hope that it will be useful,
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16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 | * GNU General Public License for more details.
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19 | *
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20 | * You should have received a copy of the GNU General Public License
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21 | * along with this program; if not, write to the Free Software
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22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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23 | *
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24 | **********************************************************************/
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25 |
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26 | #define _XOPEN_SOURCE 1
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27 | // This was added for Solaris, but it makes things worse on Solaris for me...
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28 | // #define _XOPEN_SOURCE_EXTENDED 1
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29 |
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30 | // Windows version seems to be sensitive to the order of <iostream> and <crypt.h>
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31 | // having <iostream> *after* <crypt.h> lead to linking error such as:
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32 | // __freea already defined in getpw.obj
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33 | // which seems to be caused by compiler confusion of whether it should be using
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34 | // /MD or /MT (which control dynamic or static/multi-threaded linking)
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35 |
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36 | #if defined(GSDL_USE_OBJECTSPACE)
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37 | # include <ospace\std\iostream>
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38 | #elif defined(GSDL_USE_IOS_H)
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39 | # include <iostream.h>
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40 | #else
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41 | # include <iostream>
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42 | #endif
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43 |
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44 | // use the standard namespace
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45 | #if !defined (GSDL_NAMESPACE_BROKEN)
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46 | # if defined(GSDL_USE_OBJECTSPACE)
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47 | using namespace ospace::std;
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48 | # else
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49 | using namespace std;
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50 | # endif
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51 | #endif
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52 |
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53 | #include "gsdlconf.h"
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54 |
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55 | // include crypt
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56 | #if defined(_MSC_VER)
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57 | # include <windows.h>
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58 | # include <stdio.h>
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59 | # include <crypt.h>
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60 | #else
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61 | # include "config.h"
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62 | # include <getpass.h>
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63 | # include <crypt.h>
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64 |
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65 |
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66 | # if defined(HAVE_UNISTD_H)
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67 | # include <unistd.h>
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68 | # endif
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69 | /* we are probably in trouble if we have neither crypt.h or unistd.h,
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70 | but for now we'll do nothing about it... */
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71 |
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72 | #endif /* not _MSC_VER */
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73 |
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74 | #include <string.h>
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75 | //#include <pwd.h>
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76 |
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77 | #if defined(_MSC_VER)
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78 | char* getPassword(HANDLE hSTDIN)
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79 | {
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80 | char a[129];
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81 | int charCount = 0;
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82 | DWORD cNumRead;
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83 | INPUT_RECORD irIn[128];
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84 |
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85 | bool done = false;
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86 | while (!done)
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87 | {
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88 | if (!ReadConsoleInput(hSTDIN, irIn, 128, &cNumRead))
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89 | {
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90 | cerr << "There was an error reading input from the console\n";
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91 | return strdup("");
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92 | }
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93 |
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94 | for(int j = 0; j < cNumRead; j++)
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95 | {
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96 | if(irIn[j].EventType == KEY_EVENT)
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97 | {
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98 | KEY_EVENT_RECORD keyEvent = irIn[j].Event.KeyEvent;
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99 | if(keyEvent.bKeyDown == false)
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100 | {
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101 | if(keyEvent.wVirtualKeyCode == VK_RETURN)
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102 | {
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103 | done = true;
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104 | cout << "\n";
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105 | }
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106 | else
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107 | {
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108 | if(charCount < 129)
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109 | {
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110 | a[charCount++] = keyEvent.uChar.AsciiChar;
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111 | }
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112 | }
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113 | }
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114 | }
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115 | }
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116 | }
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117 | a[charCount] = '\0';
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118 | return strdup(a);
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119 | }
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120 | #endif
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121 |
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122 |
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123 | #if defined(__ANDROID__)
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124 |
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125 | // See:
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126 | // http://stackoverflow.com/questions/1196418/getting-a-password-in-c-without-using-getpass-3
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127 |
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128 | #include <stdio.h>
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129 | #include <stdlib.h>
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130 | #include <termios.h>
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131 |
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132 | char* getpass(const char* prompt)
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133 | {
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134 | struct termios oflags, nflags;
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135 | char* password = (char*)malloc(64);
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136 |
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137 | /* disabling echo */
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138 | tcgetattr(fileno(stdin), &oflags);
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139 | nflags = oflags;
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140 | nflags.c_lflag &= ~ECHO;
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141 | nflags.c_lflag |= ECHONL;
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142 |
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143 | if (tcsetattr(fileno(stdin), TCSANOW, &nflags) != 0) {
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144 | perror("tcsetattr");
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145 | return NULL;
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146 | }
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147 |
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148 | printf(prompt);
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149 | fgets(password, sizeof(password), stdin);
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150 | password[strlen(password) - 1] = 0;
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151 |
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152 | /* restore terminal */
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153 | if (tcsetattr(fileno(stdin), TCSANOW, &oflags) != 0) {
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154 | perror("tcsetattr");
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155 | return NULL;
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156 | }
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157 |
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158 | return password;
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159 | }
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160 | #endif
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161 |
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162 |
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163 |
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164 |
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165 | int main (int argc, char *argv[]) {
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166 |
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167 | int password_ok = 0;
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168 | char c[129];
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169 | int i;
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170 |
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171 | for (i=0; i<3; i++) {
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172 | #if defined(_MSC_VER)
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173 | HANDLE hSTDIN;
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174 | DWORD fdwMode, fdwPrevMode;
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175 | int counter=0;
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176 |
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177 | hSTDIN = GetStdHandle(STD_INPUT_HANDLE);
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178 | if (hSTDIN == INVALID_HANDLE_VALUE)
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179 | {
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180 | cerr << "There was an error getting a handle to the standard input\n";
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181 | return 1;
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182 | }
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183 |
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184 | if (!GetConsoleMode(hSTDIN, &fdwPrevMode))
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185 | {
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186 | cerr << "There was an error getting a handle to the current console mode\n";
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187 | return 2;
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188 | }
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189 |
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190 | fdwMode = NULL;
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191 | if (!SetConsoleMode(hSTDIN, fdwMode))
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192 | {
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193 | cerr << "There was an error setting the new handle mode\n";
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194 | return 3;
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195 | }
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196 |
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197 | cerr << "Enter password:";
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198 | char* a = getPassword(hSTDIN);
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199 | #else
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200 | char* a = getpass("Enter password:");
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201 | #endif
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202 | int len = strlen (a);
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203 | if (len < 3 || len > 128) {
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204 | cerr << "Password must be between 3 and 128 characters long. Try again\n";
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205 | continue;
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206 | }
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207 |
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208 | strcpy (c, a);
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209 |
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210 | #if defined(_MSC_VER)
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211 | cerr << "Re-enter password: ";
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212 | char* b = getPassword(hSTDIN);
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213 | #else
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214 | char* b = getpass("Re-enter password:");
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215 | #endif
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216 | if ((strcmp (c, b)) == 0) {
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217 | password_ok = 1;
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218 | break;
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219 | }
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220 | else {
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221 | cerr << "Passwords didn't match. Try again.\n";
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222 | }
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223 | }
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224 |
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225 | if (!password_ok) {
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226 | cerr << "Failed to capture password." << endl;
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227 | return -1;
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228 | }
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229 |
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230 | char *salt = "Tp";
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231 | char *pw = crypt (c, salt);
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232 |
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233 | cout << pw << "\n";
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234 |
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235 | return 0;
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236 | }
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