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Text File | 1989-04-13 | 708 b | 22 lines | [TEXT/MPS ] |
- Most Useful Obfuscation: <sdcrdcf!lwall> Larry Wall
-
- Larry Wall
- Unisys - System Development Group Santa Monica
- 9132 Kester Ave
- Panorama City, CA 91402 USA
-
- Try: lwall | bc | lwall
- input: x*x
- input: c^2
-
- Also try: lwall | bc and lwall | cat
-
- What we found amazing was how the flow of control was transferred
- between subroutines. Careful inspection will show that the array of
- pointers to functions named `vi' refers to functions which seem to not
- be directly called. Even so, these pointers to functions are being
- used as an argument to signal. Can you determine why this is being
- done and how it is being exploited?
-
- Some compilers complained about this file, so we changed: '=++I' to '= ++I'.
-