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329 lines
7.2 KiB
329 lines
7.2 KiB
/*
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main.cpp - A Fltk based dialog for PIN entry.
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Copyright (C) 2016 Anatoly madRat L. Berenblit
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Written by Anatoly madRat L. Berenblit <madrat-@users.noreply.github.com>.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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SPDX-License-Identifier: GPL-2.0+
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#define PGMNAME (PACKAGE_NAME"-fltk")
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include <getopt.h>
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#include <assert.h>
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#include "memory.h"
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#include <memory>
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#include <pinentry.h>
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#ifdef FALLBACK_CURSES
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#include <pinentry-curses.h>
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#endif
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#include <string>
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#include <string.h>
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#include <stdexcept>
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#include <FL/Fl.H>
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#include <FL/Fl_Window.H>
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#include <FL/fl_ask.H>
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#include "pinwindow.h"
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#include "passwindow.h"
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#include "qualitypasswindow.h"
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#define CONFIRM_STRING "Confirm"
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#define REPEAT_ERROR_STRING "Texts do not match"
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#define OK_STRING "OK"
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#define CANCEL_STRING "Cancel"
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char *application = NULL;
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static std::string escape_accel_utf8(const char *s)
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{
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std::string result;
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if (NULL != s)
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{
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result.reserve(strlen(s));
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for (const char *p = s; *p; ++p)
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{
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if ('&' == *p)
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result.push_back(*p);
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result.push_back(*p);
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}
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}
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return result;
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}
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class cancel_exception
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{
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};
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static int get_quality(const char *passwd, void *ptr)
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{
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if (NULL == passwd || 0 == *passwd)
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return 0;
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pinentry_t* pe = reinterpret_cast<pinentry_t*>(ptr);
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return pinentry_inq_quality(*pe, passwd, strlen(passwd));
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}
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bool is_short(const char *str)
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{
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return fl_utf_nb_char(reinterpret_cast<const unsigned char*>(str), strlen(str)) < 16;
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}
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bool is_empty(const char *str)
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{
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return (NULL == str) || (0 == *str);
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}
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static int fltk_cmd_handler(pinentry_t pe)
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{
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int ret = -1;
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try
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{
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// TODO: Add parent window to pinentry-fltk window
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//if (pe->parent_wid){}
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std::string title = !is_empty(pe->title)?pe->title:PGMNAME;
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std::string ok = escape_accel_utf8(pe->ok?pe->ok:(pe->default_ok?pe->default_ok:OK_STRING));
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std::string cancel = escape_accel_utf8(pe->cancel?pe->cancel:(pe->default_cancel?pe->default_cancel:CANCEL_STRING));
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if (!!pe->pin) // password (or confirmation)
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{
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std::unique_ptr<PinWindow> window;
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bool isSimple = (NULL == pe->quality_bar) && // pinenty.h: If this is not NULL ...
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is_empty(pe->error) && is_empty(pe->description) &&
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is_short(pe->prompt);
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if (isSimple)
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{
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assert(NULL == pe->description);
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window.reset(PinWindow::create());
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window->prompt(pe->prompt);
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}
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else
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{
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PassWindow *pass = NULL;
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if (pe->quality_bar) // pinenty.h: If this is not NULL ...
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{
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QualityPassWindow *p = QualityPassWindow::create(get_quality, &pe);
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window.reset(p);
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pass = p;
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p->quality(pe->quality_bar);
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}
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else
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{
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pass = PassWindow::create();
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window.reset(pass);
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}
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if (NULL == pe->description)
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{
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pass->description(pe->prompt);
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pass->prompt(" ");
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}
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else
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{
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pass->description(pe->description);
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pass->prompt(escape_accel_utf8(pe->prompt).c_str());
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}
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pass->description(pe->description);
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pass->prompt(escape_accel_utf8(pe->prompt).c_str());
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if (NULL != pe->error)
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pass->error(pe->error);
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}
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window->ok(ok.c_str());
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window->cancel(cancel.c_str());
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window->title(title.c_str());
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window->showModal((NULL != application)?1:0, &application);
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if (NULL == window->passwd())
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throw cancel_exception();
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const std::string password = window->passwd();
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window.reset();
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if (pe->repeat_passphrase)
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{
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const char *dont_match = NULL;
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do
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{
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if (NULL == dont_match && is_short(pe->repeat_passphrase))
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{
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window.reset(PinWindow::create());
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window->prompt(escape_accel_utf8(pe->repeat_passphrase).c_str());
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}
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else
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{
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PassWindow *pass = PassWindow::create();
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window.reset(pass);
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pass->description(pe->repeat_passphrase);
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pass->prompt(" ");
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pass->error(dont_match);
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}
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window->ok(ok.c_str());
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window->cancel(cancel.c_str());
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window->title(title.c_str());
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window->showModal();
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if (NULL == window->passwd())
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throw cancel_exception();
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if (password == window->passwd())
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{
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pe->repeat_okay = 1;
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ret = 1;
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break;
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}
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else
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{
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dont_match = (NULL!=pe->repeat_error_string)? pe->repeat_error_string:REPEAT_ERROR_STRING;
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}
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} while (true);
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}
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else
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ret = 1;
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pinentry_setbufferlen(pe, password.size()+1);
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if (pe->pin)
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{
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memcpy(pe->pin, password.c_str(), password.size()+1);
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pe->result = password.size();
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ret = password.size();
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}
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}
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else
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{
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// Confirmation or Message Dialog title, desc
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Fl_Window dummy(0,0, 1,1);
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dummy.border(0);
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dummy.show((NULL != application)?1:0, &application);
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dummy.hide();
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fl_message_title(title.c_str());
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int result = -1;
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const char *message = (NULL != pe->description)?pe->description:CONFIRM_STRING;
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if (pe->one_button)
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{
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fl_ok = ok.c_str();
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fl_message(message);
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result = 1; // OK
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}
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else if (pe->notok)
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{
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switch (fl_choice(message, ok.c_str(), cancel.c_str(), pe->notok))
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{
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case 0: result = 1; break;
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case 2: result = 0; break;
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default:
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case 1: result = -1;break;
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}
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}
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else
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{
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switch (fl_choice(message, ok.c_str(), cancel.c_str(), NULL))
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{
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case 0: result = 1; break;
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default:
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case 1: result = -1;break;
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}
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}
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// cancel -> pe->canceled = true, 0
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// ok/y -> 1
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// no -> 0
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if (-1 == result)
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pe->canceled = true;
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ret = (1 == result);
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}
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Fl::check();
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}
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catch (const cancel_exception&)
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{
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ret = -1;
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}
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catch (...)
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{
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ret = -1;
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}
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// do_touch_file(pe); only for NCURSES?
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return ret;
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}
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pinentry_cmd_handler_t pinentry_cmd_handler = fltk_cmd_handler;
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int main(int argc, char *argv[])
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{
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application = *argv;
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pinentry_init(PGMNAME);
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#ifdef FALLBACK_CURSES
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if (!pinentry_have_display(argc, argv))
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pinentry_cmd_handler = curses_cmd_handler;
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else
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#endif
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{
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//FLTK understood only -D (--display)
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// and should be converted into -di[splay]
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const static struct option long_options[] =
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{
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{"display", required_argument, 0, 'D' },
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{NULL, no_argument, 0, 0 }
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};
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for (int i = 0; i < argc-1; ++i)
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{
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switch (getopt_long(argc-i, argv+i, "D:", long_options, NULL))
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{
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case 'D':
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{
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char* emul[] = {application, (char*)"-display", optarg};
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Fl::args(3, emul);
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i = argc;
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break;
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}
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default:
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break;
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}
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}
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}
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pinentry_parse_opts(argc, argv);
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return pinentry_loop() ?EXIT_FAILURE:EXIT_SUCCESS;
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}
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