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https://github.com/BlackLight/Jastegal.git
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120 lines
3.1 KiB
C++
120 lines
3.1 KiB
C++
/*
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* jastegal.cpp
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*
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* The files in this directory and elsewhere which refer to this LICENCE
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* file are part of Jastegal (Just Another Steganography algorithm)
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*
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* Copyright (C) 2009 BlackLight
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*
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* Jastegal is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 3 or (at your option) any later
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* version.
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*
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* Jastegal is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with Jastegal; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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*
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* As a special exception, if other files instantiate templates or use
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* macros or inline functions from these files, or you compile these
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* files and link them with other works to produce a work based on these
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* files, these files do not by themselves cause the resulting work to be
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* covered by the GNU General Public License. However the source code for
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* these files must still be made available in accordance with section (3)
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* of the GNU General Public License.
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*
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* This exception does not invalidate any other reasons why a work based on
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* this file might be covered by the GNU General Public License.
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*/
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#include <CImg.h>
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#include <iostream>
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#include <unistd.h>
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#include "jastegal.h"
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using namespace std;
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using namespace cimg_library;
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int main (int argc, char **argv) {
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int ch;
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string inImg, outImg, fname;
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action act = undef;
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while ((ch=getopt(argc,argv,"edi:o:f:"))>0) {
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switch (ch) {
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case 'i':
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inImg = string(optarg);
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break;
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case 'o':
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outImg = string(optarg);
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break;
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case 'd':
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if (act != undef) {
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cerr << "Error: you can use a flag between -d (decode) and -e (encode) a time\n\n";
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printHelp(argv[0]);
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return 1;
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}
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act = decode;
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break;
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case 'e':
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if (act == decode) {
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cerr << "Error: you can use a flag between -d (decode) and -e (encode) a time\n\n";
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printHelp(argv[0]);
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return 1;
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}
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act = encode;
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break;
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case 'f':
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fname = string(optarg);
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break;
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}
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}
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if (act == undef) {
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cerr << "Error: you must specify an action between decoding (-d) and encoding (-e)\n\n";
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printHelp(argv[0]);
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return 1;
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}
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if (inImg.empty()) {
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printHelp(argv[0]);
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return 1;
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}
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if (act == encode) {
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if (outImg.empty()) {
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cerr << "Error: you must specify a file name for the output image using -o option when encoding\n\n";
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printHelp(argv[0]);
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return 1;
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}
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if (fname.empty())
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cout << "Enter the input message to be steganographied [CTRL+D to end]:\n";
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if (steganoEncode (inImg, outImg, fname)) {
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cerr << "There was an unrecoverable error while processing the image. Exiting...\n";
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return 1;
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}
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cout << "The steganographied output was successfully written to " << outImg << endl;
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} else {
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cout << steganoDecode(inImg) << endl;
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}
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return 0;
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}
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