| 1 |
/* wptSymEnc.cpp - Symmetric encryption support |
| 2 |
* Copyright (C) 2002, 2003, 2004, 2005 Timo Schulz |
| 3 |
* |
| 4 |
* This file is part of WinPT. |
| 5 |
* |
| 6 |
* WinPT is free software; you can redistribute it and/or |
| 7 |
* modify it under the terms of the GNU General Public License |
| 8 |
* as published by the Free Software Foundation; either version 2 |
| 9 |
* of the License, or (at your option) any later version. |
| 10 |
* |
| 11 |
* WinPT is distributed in the hope that it will be useful, |
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 |
* General Public License for more details. |
| 15 |
* |
| 16 |
* You should have received a copy of the GNU General Public License |
| 17 |
* along with WinPT; if not, write to the Free Software Foundation, |
| 18 |
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 |
*/ |
| 20 |
|
| 21 |
#include <windows.h> |
| 22 |
|
| 23 |
#include "wptGPG.h" |
| 24 |
#include "wptCommonCtl.h" |
| 25 |
#include "wptContext.h" |
| 26 |
#include "wptDlgs.h" |
| 27 |
#include "wptNLS.h" |
| 28 |
#include "wptUTF8.h" |
| 29 |
#include "wptTypes.h" |
| 30 |
#include "wptErrors.h" |
| 31 |
|
| 32 |
|
| 33 |
/* Simple passphrase callback. The hook pointer is the passphrase itself. |
| 34 |
Return value: 0 on success. */ |
| 35 |
gpgme_error_t |
| 36 |
sym_passphrase_cb (void *hook, const char *hint, const char *pass_inf, |
| 37 |
int prev_was_bad, int fd) |
| 38 |
{ |
| 39 |
const char *pass = (const char*)hook; |
| 40 |
HANDLE hd = (HANDLE)fd; |
| 41 |
DWORD n; |
| 42 |
|
| 43 |
if (!pass) |
| 44 |
return gpg_error (GPG_ERR_INV_ARG); |
| 45 |
|
| 46 |
if (!WriteFile (hd, pass, strlen (pass), &n, NULL)) |
| 47 |
log_debug ("sym_passphrase_cb: WriteFile() failed ec=%d\n", w32_errno); |
| 48 |
if (!WriteFile (hd, "\n", 1, &n, NULL)) |
| 49 |
log_debug ("sym_passphrase_cb: WriteFile() failed ec=%d\n", w32_errno); |
| 50 |
|
| 51 |
return 0; |
| 52 |
} |
| 53 |
|
| 54 |
|
| 55 |
/* Perform symmetric encryption on the current clipboard data. |
| 56 |
Return 0 for success. */ |
| 57 |
int |
| 58 |
gpg_encrypt_symmetric (void) |
| 59 |
{ |
| 60 |
gpgme_ctx_t ctx; |
| 61 |
gpgme_data_t plain=NULL; |
| 62 |
gpgme_data_t ciph=NULL; |
| 63 |
gpgme_error_t rc; |
| 64 |
char *pass = NULL; |
| 65 |
int cancel = 0; |
| 66 |
|
| 67 |
pass = request_passphrase2 (_("Symmetric Encryption"), 0, &cancel); |
| 68 |
if (cancel) |
| 69 |
return 0; |
| 70 |
rc = gpgme_new (&ctx); |
| 71 |
if (rc) |
| 72 |
goto leave; |
| 73 |
rc = gpg_data_new_from_clipboard (&plain, 0); |
| 74 |
if (rc) |
| 75 |
goto leave; |
| 76 |
rc = gpgme_data_new (&ciph); |
| 77 |
gpgme_set_armor (ctx, 1); |
| 78 |
|
| 79 |
gpgme_set_passphrase_cb (ctx, sym_passphrase_cb, pass); |
| 80 |
|
| 81 |
rc = gpgme_op_encrypt (ctx, NULL, (gpgme_encrypt_flags_t)0, plain, ciph); |
| 82 |
if (rc) |
| 83 |
msg_box (NULL, gpgme_strerror (rc), _("Symmetric Encryption"), MB_ERR); |
| 84 |
else { |
| 85 |
show_msg (GetDesktopWindow (), 1500, _("GnuPG Status: Finished")); |
| 86 |
gpg_data_release_and_set_clipboard (ciph, 1); |
| 87 |
ciph = NULL; |
| 88 |
} |
| 89 |
|
| 90 |
leave: |
| 91 |
if (plain) |
| 92 |
gpgme_data_release (plain); |
| 93 |
if (ciph) |
| 94 |
gpgme_data_release (ciph); |
| 95 |
gpgme_release (ctx); |
| 96 |
sfree_if_alloc (pass); |
| 97 |
return rc? WPTERR_GENERAL : 0; |
| 98 |
} |
Parent Directory
| 
Revision Log