source: main/trunk/greenstone2/common-src/src/getpw/getpw.cpp@ 26798

Last change on this file since 26798 was 26798, checked in by davidb, 8 years ago

Support for cross-compiling with Android-NDK added

  • Property svn:keywords set to Author Date Id Revision
File size: 5.3 KB
Line 
1/**********************************************************************
2 *
3 * getpw.cpp --
4 * A component of the Greenstone digital library software
5 * from the New Zealand Digital Library Project at the
6 * University of Waikato, New Zealand.
7 *
8 * Copyright (C) 2000 The New Zealand Digital Library Project
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 *
24 **********************************************************************/
25
26#define _XOPEN_SOURCE 1
27// This was added for Solaris, but it makes things worse on Solaris for me...
28// #define _XOPEN_SOURCE_EXTENDED 1
29
30// Windows version seems to be sensitive to the order of <iostream> and <crypt.h>
31// having <iostream> *after* <crypt.h> lead to linking error such as:
32// __freea already defined in getpw.obj
33// which seems to be caused by compiler confusion of whether it should be using
34// /MD or /MT (which control dynamic or static/multi-threaded linking)
35
36#if defined(GSDL_USE_OBJECTSPACE)
37# include <ospace\std\iostream>
38#elif defined(GSDL_USE_IOS_H)
39# include <iostream.h>
40#else
41# include <iostream>
42#endif
43
44// use the standard namespace
45#if !defined (GSDL_NAMESPACE_BROKEN)
46# if defined(GSDL_USE_OBJECTSPACE)
47using namespace ospace::std;
48# else
49using namespace std;
50# endif
51#endif
52
53#include "gsdlconf.h"
54
55// include crypt
56#if defined(_MSC_VER)
57# include <windows.h>
58# include <stdio.h>
59# include <crypt.h>
60#else
61# include "config.h"
62# include <getpass.h>
63# include <crypt.h>
64
65
66# if defined(HAVE_UNISTD_H)
67# include <unistd.h>
68# endif
69/* we are probably in trouble if we have neither crypt.h or unistd.h,
70 but for now we'll do nothing about it... */
71
72#endif /* not _MSC_VER */
73
74#include <string.h>
75//#include <pwd.h>
76
77#if defined(_MSC_VER)
78char* getPassword(HANDLE hSTDIN)
79{
80 char a[129];
81 int charCount = 0;
82 DWORD cNumRead;
83 INPUT_RECORD irIn[128];
84
85 bool done = false;
86 while (!done)
87 {
88 if (!ReadConsoleInput(hSTDIN, irIn, 128, &cNumRead))
89 {
90 cerr << "There was an error reading input from the console\n";
91 return strdup("");
92 }
93
94 for(int j = 0; j < cNumRead; j++)
95 {
96 if(irIn[j].EventType == KEY_EVENT)
97 {
98 KEY_EVENT_RECORD keyEvent = irIn[j].Event.KeyEvent;
99 if(keyEvent.bKeyDown == false)
100 {
101 if(keyEvent.wVirtualKeyCode == VK_RETURN)
102 {
103 done = true;
104 cout << "\n";
105 }
106 else
107 {
108 if(charCount < 129)
109 {
110 a[charCount++] = keyEvent.uChar.AsciiChar;
111 }
112 }
113 }
114 }
115 }
116 }
117 a[charCount] = '\0';
118 return strdup(a);
119}
120#endif
121
122
123#if defined(__ANDROID__)
124
125// See:
126// http://stackoverflow.com/questions/1196418/getting-a-password-in-c-without-using-getpass-3
127
128#include <stdio.h>
129#include <stdlib.h>
130#include <termios.h>
131
132char* getpass(const char* prompt)
133{
134 struct termios oflags, nflags;
135 char* password = (char*)malloc(64);
136
137 /* disabling echo */
138 tcgetattr(fileno(stdin), &oflags);
139 nflags = oflags;
140 nflags.c_lflag &= ~ECHO;
141 nflags.c_lflag |= ECHONL;
142
143 if (tcsetattr(fileno(stdin), TCSANOW, &nflags) != 0) {
144 perror("tcsetattr");
145 return NULL;
146 }
147
148 printf(prompt);
149 fgets(password, sizeof(password), stdin);
150 password[strlen(password) - 1] = 0;
151
152 /* restore terminal */
153 if (tcsetattr(fileno(stdin), TCSANOW, &oflags) != 0) {
154 perror("tcsetattr");
155 return NULL;
156 }
157
158 return password;
159}
160#endif
161
162
163
164
165int main (int argc, char *argv[]) {
166
167 int password_ok = 0;
168 char c[129];
169 int i;
170
171 for (i=0; i<3; i++) {
172#if defined(_MSC_VER)
173 HANDLE hSTDIN;
174 DWORD fdwMode, fdwPrevMode;
175 int counter=0;
176
177 hSTDIN = GetStdHandle(STD_INPUT_HANDLE);
178 if (hSTDIN == INVALID_HANDLE_VALUE)
179 {
180 cerr << "There was an error getting a handle to the standard input\n";
181 return 1;
182 }
183
184 if (!GetConsoleMode(hSTDIN, &fdwPrevMode))
185 {
186 cerr << "There was an error getting a handle to the current console mode\n";
187 return 2;
188 }
189
190 fdwMode = NULL;
191 if (!SetConsoleMode(hSTDIN, fdwMode))
192 {
193 cerr << "There was an error setting the new handle mode\n";
194 return 3;
195 }
196
197 cerr << "Enter password:";
198 char* a = getPassword(hSTDIN);
199#else
200 char* a = getpass("Enter password:");
201#endif
202 int len = strlen (a);
203 if (len < 3 || len > 128) {
204 cerr << "Password must be between 3 and 128 characters long. Try again\n";
205 continue;
206 }
207
208 strcpy (c, a);
209
210#if defined(_MSC_VER)
211 cerr << "Re-enter password: ";
212 char* b = getPassword(hSTDIN);
213#else
214 char* b = getpass("Re-enter password:");
215#endif
216 if ((strcmp (c, b)) == 0) {
217 password_ok = 1;
218 break;
219 }
220 else {
221 cerr << "Passwords didn't match. Try again.\n";
222 }
223 }
224
225 if (!password_ok) {
226 cerr << "Failed to capture password." << endl;
227 return -1;
228 }
229
230 char *salt = "Tp";
231 char *pw = crypt (c, salt);
232
233 cout << pw << "\n";
234
235 return 0;
236}
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