public virtual void ParseOverlay(Action <Hunk> h)
{
OverlayHunk hunk = new OverlayHunk();
h(hunk);
// read size of overlay hunk
var ov_size = this.read_long();
if (ov_size < 0)
{
throw new BadImageFormatException(string.Format("{0} has invalid size.", hunk.HunkType));
}
// read data of overlay
var byte_size = (ov_size + 1) * 4;
var ov_data = f.ReadBytes(byte_size);
hunk.ov_data = ov_data;
// check: first get header hunk
var hdr_hunk = this.hunks[0];
if (hdr_hunk.HunkType != HunkType.HUNK_HEADER)
{
throw new BadImageFormatException(string.Format("{0} has no header hunk.", hunk.HunkType));
}
// first find the code segment of the overlay manager
var overlayManagerHunk = this.FindFirstCodeHunk();
if (overlayManagerHunk == null)
{
throw new BadImageFormatException(string.Format("{0} has no overlay manager hunk.", hunk.HunkType));
}
// check overlay manager
var overlay_mgr_data = overlayManagerHunk.Data;
uint magic = MemoryArea.ReadBeUInt32(overlay_mgr_data, 4);
if (magic != 0xABCD)
{
throw new BadImageFormatException("No valid overlay manager found.");
}
// check for standard overlay manager
var magic2 = MemoryArea.ReadBeUInt32(overlay_mgr_data, 24);
var magic3 = MemoryArea.ReadBeUInt32(overlay_mgr_data, 20);
var magic4 = MemoryArea.ReadBeUInt32(overlay_mgr_data, 32);
var std_overlay = magic2 == 23456 && magic3 == 122648165 && magic4 == 1919705465;
hunk.ov_std = std_overlay;
}
public virtual void ParseOverlay(Action<Hunk> h)
{
OverlayHunk hunk = new OverlayHunk();
h(hunk);
// read size of overlay hunk
var ov_size = this.read_long();
if (ov_size < 0)
throw new BadImageFormatException(string.Format("{0} has invalid size.", hunk.HunkType));
// read data of overlay
var byte_size = (ov_size + 1) * 4;
var ov_data = f.ReadBytes(byte_size);
hunk.ov_data = ov_data;
// check: first get header hunk
var hdr_hunk = this.hunks[0];
if (hdr_hunk.HunkType != HunkType.HUNK_HEADER)
throw new BadImageFormatException(string.Format("{0} has no header hunk.", hunk.HunkType));
// first find the code segment of the overlay manager
var overlayManagerHunk = this.FindFirstCodeHunk();
if (overlayManagerHunk == null)
throw new BadImageFormatException(string.Format("{0} has no overlay manager hunk.", hunk.HunkType));
// check overlay manager
var overlay_mgr_data = overlayManagerHunk.Data;
uint magic = LoadedImage.ReadBeUInt32(overlay_mgr_data, 4);
if (magic != 0xABCD)
throw new BadImageFormatException("No valid overlay manager found.");
// check for standard overlay manager
var magic2 = LoadedImage.ReadBeUInt32(overlay_mgr_data, 24);
var magic3 = LoadedImage.ReadBeUInt32(overlay_mgr_data, 20);
var magic4 = LoadedImage.ReadBeUInt32(overlay_mgr_data, 32);
var std_overlay = magic2 == 23456 && magic3 == 122648165 && magic4 == 1919705465;
hunk.ov_std = std_overlay;
}
