Binary file: Does this look like a link list?
Hello all,
I was hope someone can help me figure out what these, what appears to be, pointer addresses. The file was generated by a program called DVdraw which is part of DataViews. This is a very old version that was generated on a Sparc 20. So I assume the file is Big-Endian. I generated a small binary file and added records using the DVdraw app. This is the hex output of the first record. Records seem to start with Code:
00 00 01 BC Code:
15 1D E8 00 Code:
00 00 00 00 Here it is with two records. As you can see, the contents of Offset 85H has been replaced to "point to" the second record (Offset C2H) and at Offset C6H is 0's. Again, I could be off by one location. Here it is with three records. So there is a pattern but I can't figure this part out. I hope someone can throw out some suggestions. I have no idea how to predict the next "address". |
it seems that they are placed inside pairs.
one_record.png: 15 1d e8 00 -> 15 1d e8 00 two_records.png: 15 1d e8 00 -> 15 1d e8 00, 16 36 80 00 -> 16 36 80 00 three_records.png: 15 1d e8 00 -> 15 1d e8 00, 16 36 80 00 -> 16 36 80 00, 16 3f f0 00 -> 16 3f f0 00, on three_records.png you forgot to highlight the starting 15 1d e8 00. got any bells ring to it? edit: maybe you just have to iteratively search all pairs until you find 00 00 00 00. |
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