mirror of
https://github.com/scummvm/scummvm-tools.git
synced 2026-05-21 05:40:44 +00:00
Hampus Nilsson
168e91e076
*Added a common 'Tools' class to be used by both the CLI and the GUI, right now it's NOT in use by the GUI, so there is some code clutter. *Rename gui/tools.h to gui/tools.cpp *Tools now know their own type. *Some other small changes. svn-id: r42670
140 lines
4.0 KiB
C++
140 lines
4.0 KiB
C++
/* extract_scumm_mac - Split one-big-file Macintosh game data into seperate .00x files for ScummVM
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* Copyright (C) 2001-2003 Casey Hutchinson
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* Copyright (C) 2004-2006 The ScummVM Team
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*
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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
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU 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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*
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* $URL$
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* $Id$
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*
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*/
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#include "extract_scumm_mac.h"
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/* this makes extract_scumm_mac convert extracted file names to lower case */
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#define CHANGECASE
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ExtractScummMac::ExtractScummMac(const std::string &name) : Tool(name, TOOLTYPE_EXTRACTION) {
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ToolInput input;
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input.format = "*.*";
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_inputPaths.push_back(input);
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_helptext =
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"\nUsage: " + _name + " [-o <output dir> = out/] <file>\n"
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"\tSome Lucas Arts CDs appear to contains only an application.\n"
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"\tThey actually contain a seperate data file as a hidden file.\n";
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}
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void ExtractScummMac::execute() {
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unsigned long file_record_off, file_record_len;
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unsigned long file_off, file_len;
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unsigned long data_file_len;
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char file_name[0x20];
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char *buf;
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unsigned long i;
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int j;
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Filename inpath(_inputPaths[0].path);
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Filename outpath(_outputPath);
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if (outpath.empty())
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outpath.setFullPath("out/");
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File ifp(inpath, "rb");
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/* Get the length of the data file to use for consistency checks */
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data_file_len = ifp.size();
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/* Read offset and length to the file records */
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file_record_off = ifp.readUint32BE();
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file_record_len = ifp.readUint32BE();
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/* Do a quick check to make sure the offset and length are good */
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if (file_record_off + file_record_len > data_file_len) {
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error("\'%s\'. file records out of bounds.", inpath.getFullPath().c_str());
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}
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/* Do a little consistancy check on file_record_length */
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if (file_record_len % 0x28) {
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error("\'%s\'. file record length not multiple of 40.", inpath.getFullPath().c_str());
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}
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/* Extract the files */
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for (i = 0; i < file_record_len; i += 0x28) {
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/* read a file record */
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ifp.seek(file_record_off + i, SEEK_SET);
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file_off = ifp.readUint32BE();
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file_len = ifp.readUint32BE();
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ifp.read(file_name, 0x20, 1);
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if (!file_name[0])
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error("\'%s\'. file has no name.", inpath.getFullPath().c_str());
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print("extracting \'%s\'", file_name);
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/* For convenience compatibility with scummvm (and case sensitive
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* file systems) change the file name to lowercase.
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*
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* if i ever add the ability to pass flags on the command
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* line, i will make this optional, but i really don't
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* see the point to bothering
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*/
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for (j = 0; j < 0x20; j++) {
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if (!file_name[j]) {
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break;
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}
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#ifdef CHANGECASE
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file_name[j] = tolower(file_name[j]);
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#endif
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}
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if (j == 0x20) {
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file_name[0x1f] = 0;
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warning("\'%s\'. file name not null terminated.\n", file_name);
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print("data file \'%s\' may be not a file extract_scumm_mac can extract.\n", inpath.getFullPath().c_str());
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}
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print(", saving as \'%s\'\n", file_name);
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/* Consistency check. make sure the file data is in the file */
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if (file_off + file_len > data_file_len) {
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error("\'%s\'. file out of bounds.", inpath.getFullPath().c_str());
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}
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/* Write a file */
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ifp.seek(file_off, SEEK_SET);
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outpath.setFullName(file_name);
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File ofp(outpath, "wb");
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if (!(buf = (char *)malloc(file_len))) {
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error("Could not allocate %ld bytes of memory.", file_len);
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}
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ifp.read(buf, 1, file_len);
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ofp.write(buf, 1, file_len);
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free(buf);
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}
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}
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#ifdef STANDALONE_MAIN
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int main(int argc, char *argv[]) {
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return export_main(extract_scumm_mac)(argc, argv);
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}
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#endif
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