Instrumentation Tools
Thorough testing of software is a difficult proposition at best. The challenge to the tester is to ensure that all code paths behave predictably under all input cases. To do this, test cases must be developed that force the program to execute all possible instructions within the program. Assuming the program contains error handling code, these tests must include exceptional cases that cause execution to pass to each error handler. Failure to perform any error checking at all, and failure to test every code path, are just two of the problems that attackers may take advantage of. Murphy’s Law assures us that it will be the one section of code that was untested that will be the one that is exploitable.
Without proper instrumentation ...
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