mirror of
https://github.com/horsicq/Detect-It-Easy.git
synced 2026-06-24 01:54:08 +00:00
33711a0407
Added a standard header comment to all db framework and detection rule files, indicating they are part of the Detect It Easy (DiE-JS) framework and warning against unauthorized changes. This improves consistency and clarifies file purpose for maintainers.
83 lines
No EOL
2.8 KiB
Text
83 lines
No EOL
2.8 KiB
Text
// Detect It Easy: DiE-JS framework file
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// Don't change anything unless you're sure about what you're doing
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// Detect an ARJ archive.
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// Info from http://www.fileformat.info/format/arj/corion.htm
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includeScript("archive-file");
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sName = "ARJ";
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function detect_ARJ(bFile, bShowOptions) {
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var nOffset, nSize;
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if (bFile) {
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nOffset = 0;
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nSize = File.getSize();
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} else {
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nOffset = File.getOverlayOffset() + 8;
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nSize = File.getOverlaySize();
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}
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if (nSize >= 64) {
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if (File.compare("60EA", nOffset)) {
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sVersion = File.readByte(nOffset + 5);
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bDetected = true;
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}
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if (bDetected && bShowOptions) {
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// Options
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switch (File.readByte(nOffset + 7)) // Host OS
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{
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case (0):
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sOptions = sOptions.append("MS-DOS");
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break;
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case (1):
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sOptions = sOptions.append("PRIMOS");
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break;
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case (2):
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sOptions = sOptions.append("UNIX");
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break;
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case (3):
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sOptions = sOptions.append("AMIGA");
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break;
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case (4):
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sOptions = sOptions.append("MAC-OS");
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break;
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case (5):
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sOptions = sOptions.append("OS/2");
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break;
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case (6):
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sOptions = sOptions.append("APPLE GS");
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break;
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case (7):
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sOptions = sOptions.append("ATARI ST");
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break;
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case (8):
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sOptions = sOptions.append("NeXT");
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break;
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case (9):
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sOptions = sOptions.append("VAX VMS");
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break;
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}
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if (File.readByte(nOffset + 8) & 0x01) // password
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{
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sOptions = sOptions.append("encrypted");
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}
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switch (File.readByte(nOffset + 9)) // Compression method
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{
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case (0):
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sOptions = sOptions.append("stored");
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break;
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case (1):
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sOptions = sOptions.append("compressed most");
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break;
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case (2):
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sOptions = sOptions.append("compressed");
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break;
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case (3):
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sOptions = sOptions.append("compressed faster");
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break;
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case (4):
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sOptions = sOptions.append("compressed fastest");
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break;
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}
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}
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}
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} |