/usr/share/doc/fltk1.1-doc/examples/connect.cxx is in fltk1.1-doc 1.1.10-23.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// "$Id: connect.cxx 5519 2006-10-11 03:12:15Z mike $"
//
// PPP example program for the Fast Light Tool Kit (FLTK).
//
// Program to make a button to turn a ppp connection on/off.
// You must chmod +s /usr/sbin/pppd, and put all the options
// into /etc/ppp/options.
//
// Copyright 1998-2005 by Bill Spitzak and others.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
//
// Please report all bugs and problems on the following page:
//
// http://www.fltk.org/str.php
//
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <signal.h>
#include <sys/wait.h>
#include <FL/Fl.H>
#include <FL/Fl_Window.H>
#include <FL/Fl_Toggle_Button.H>
int running; // actually the pid
Fl_Toggle_Button *Button;
void sigchld(int) {
waitpid(running, 0, 0);
running = 0;
Button->value(0);
}
void cb(Fl_Widget *o, void *) {
if (((Fl_Toggle_Button*)o)->value()) {
if (running) return;
running = fork();
if (!running) execl("/usr/sbin/pppd","pppd","-detach",0);
else signal(SIGCHLD, sigchld);
} else {
if (!running) return;
kill(running, SIGINT);
waitpid(running, 0, 0);
running = 0;
}
}
int main(int argc, char ** argv) {
Fl_Window window(100,50);
Fl_Toggle_Button button(0,0,100,50,"Connect");
Button = &button;
button.color(1,2);
button.callback(cb,0);
window.show(argc,argv);
return Fl::run();
}
//
// End of "$Id: connect.cxx 5519 2006-10-11 03:12:15Z mike $".
//
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