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Files from Bruce Perens

ElectricFence-2.2.2.tar.gz

Posted Feb 17, 2000

Authored by Bruce Perens | Site perens.com

Electric Fence stops your program on the exact instruction that overruns (or underruns) a malloc() memory buffer. GDB will then display the source-code line that causes the bug. It works by using the virtual-memory hardware to create a red-zone at the border of each buffer - touch that, and your program stops. Catch all of those formerly impossible-to-catch overrun bugs that have been bothering you for years.

Changes: Fixed shared library to be position-independent code.

tags | paper, overflow

SHA-256 | e5be3a38a0d2b71ba558eb310a2db44ea6e7c208e16d4fd907dc6ed11c46b1a7

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ElectricFence-2.1.tar.gz

Posted Aug 17, 1999

Authored by Bruce Perens

Electric Fence 2.1 - Electric Fence stops your program on the exact instruction that overruns (or underruns) a malloc() memory buffer. GDB will then display the source-code line that causes the bug. It works by using the virtual-memory hardware to create a red-zone at the border of each buffer - touch that, and your program stops. Catch all of those formerly impossible-to-catch overrun bugs that have been bothering you for years.

Changes: Removed work-arounds, most operating systems and C libraries have been fixed now.

tags | overflow

systems | unix

SHA-256 | 14a34ab85bb80d988cd23cf9e5c5ccf6663d8c9f8a5ab2b70d856dde3d80975d

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ElectricFence-2.2.0.tar.gz

Posted Aug 17, 1999

Authored by Bruce Perens

Electric Fence 2.2.0 - Electric Fence stops your program on the exact instruction that overruns (or underruns) a malloc() memory buffer. GDB will then display the source-code line that causes the bug. It works by using the virtual-memory hardware to create a red-zone at the border of each buffer - touch that, and your program stops. Catch all of those formerly impossible-to-catch overrun bugs that have been bothering you for years.

Changes: Electric Fence will now debug multi-threaded programs correctly. Besides the static version, it's loadable as a shared library using LD_PRELOAD, thus you don't have to re-link your program to debug it with Electric Fence. The command "ef <command> will run any dynamic-linked executable under Electric Fence and a bug concerning EF_PROTECT_FREE has been repaired.

tags | overflow

systems | unix

SHA-256 | 05f3aae061894e864a5743ea57f22187e1b8041e9d885bc21094105401dd0f63

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