Example #1
0
int main (int argc, char *argv[])
{
    int i,r;
    Extractor *ext;

    if(argc<2){
	cout << "Usage: program <debian packadge> [<debian packadge>]" << endl;
	return 1;
    }

    for(i=1;i<argc;i++){ //multiple inputs
    r=0;
    ext = new Extractor();
    /*
     * this prints to standard out name of debian packadge
     * Note: if it's non-debian packadge, then program will end at first
     * check of content of Ar archive and clean
     */
    cout << argv[1] << endl;
    ext->setSource(argv[i]);
    r = ext->loadUnpackArchive(0);
    if (r!=0){
    	/*
    	 * if error occurs inform user
    	 */
    	cout << "Error in extracting debian type archive!" <<endl;
    	cout << "Purging new files end directories it they are created..." << endl;
    	cout << ext->getParent() << endl;
    	ext->deleteDirectoryRmR(ext->getParent());
    	cout << "Task is done.Exiting." << endl;
	delete(ext);
	return 1;
    }else cout << "Extracted!" << endl;
		/*
		 * if all is ok inform user
		 */

    delete(ext);
    /*
     * before continuing loading another archive environment path must be the initial path
     */
    chdir("../");
    }

    return 0;
}
Example #2
0
    /*
     * This method is "universal" extractor modified for debian packadges
     */
    int loadUnpackArchive(int deb){
    	Extractor *secondExtractor;
    	int flags,i,code=0;

    	const char *filename;

    	this->ar = archive_read_new();
    	archive_read_support_format_all(this->ar);
    	archive_read_support_compression_all(this->ar);
    	r = archive_read_open_filename(this->ar, this->filename, 10240);
    	if (r != ARCHIVE_OK)
    		return 1;
       	flags = ARCHIVE_EXTRACT_TIME;
    	flags |= ARCHIVE_EXTRACT_PERM;
    	flags |= ARCHIVE_EXTRACT_ACL;
    	flags |= ARCHIVE_EXTRACT_FFLAGS;

    	/*
    	 * with another archive files and folders will be written to root folder
    	 */
    	this->createSetWorkingDir();
    	this->ext = archive_write_disk_new();
    	archive_write_disk_set_options(this->ext, flags);
    	archive_write_disk_set_standard_lookup(this->ext);

    	i=0;
		while (archive_read_next_header(this->ar, &entry) == ARCHIVE_OK) {
			/*
			 * while ar archive has files (its normal to be 3, and first is always debian-binary
			 * second and third must bi control and data
			 * othervise it isn't debian packadge
			 */
			if(deb==0 && i==3) return 1;
			filename = archive_entry_pathname(entry);
			if(deb==0 && i==0 && strcmp("debian-binary",filename)!=0) return -1;
			this->newfilename = this->setFilename(filename,deb);
			if (deb==0 && i>0){
				this->files.push_back(string(this->newfilename));

			}
			if (archive_entry_size(entry) > 0) {
    			r = archive_write_header(this->ext, entry);
    			if (r != ARCHIVE_OK)
    			    return 1;
    			r = this->copy_data();
    			if (r!=0) return r;
			this->deleteNameFilename();
    		}
    		i++;
    	}
    	r = archive_read_close(this->ar);
    	if (r != ARCHIVE_OK)
    		return 1;
    	r = archive_write_finish_entry(ext);
    	archive_write_close(ext);
    	if (deb==0 && this->files.size()>0){
    		/*
    		 * here are two recursve calls to extract other two subarchives
    		 * previously extracted from ar archive.
    		 * Because gouping into folders is needed, environment location
    		 * is changing with createSetWorkingDir() above and with chdir()
    		 * after extraction
    		 */

    		for(vector< string >::iterator iter = this->files.begin();iter<this->files.end();iter++){
    			secondExtractor = new Extractor();
    			secondExtractor->setSource((char *)(*iter).c_str());

			      /*
			       * Checking that control and data exist
			       */
			      if(((*iter).substr(0,(*iter).find('.'))).compare("data")!=0){
				      code=code+3;
			      }else if(((*iter).substr(0,(*iter).find('.'))).compare("control")!=0){
				      code=code+5;
			      }else{
				      code=10; //any number bigger than 5+3
			      }

			      if(iter==this->files.end()-1 && code!=8){ //if third file in ar archive is now check this rule
				      return 1;
			      }

    			r = secondExtractor->loadUnpackArchive(1);
    			delete(secondExtractor);
    			chdir("../");
    			remove_all((*iter).c_str());
			if (r!=0) return 1;

    		}
    	}

    	return 0;
    };