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authorrichinseattle@gmail.com <richinseattle@gmail.com>2021-03-18 01:37:40 -0700
committerrichinseattle@gmail.com <richinseattle@gmail.com>2021-03-18 01:37:40 -0700
commitc397becd81229d71b55acf89a31710bead3707aa (patch)
tree8306b59e88e22d7090fd786690227dacc99e24e3 /examples/argv_fuzzing/README.md
parent62508c3b446a893f0afead9a6d0546d53d588a13 (diff)
parent94312796f936ba1830b61432a0f958e192dd212f (diff)
downloadafl++-c397becd81229d71b55acf89a31710bead3707aa.tar.gz
Merge branch 'dev' of https://github.com/AFLplusplus/AFLplusplus into dev
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-# argvfuzz
-
-afl supports fuzzing file inputs or stdin. When source is available,
-`argv-fuzz-inl.h` can be used to change `main()` to build argv from stdin.
-
-`argvfuzz` tries to provide the same functionality for binaries. When loaded
-using `LD_PRELOAD`, it will hook the call to `__libc_start_main` and replace
-argv using the same logic of `argv-fuzz-inl.h`.
-
-A few conditions need to be fulfilled for this mechanism to work correctly:
-
-1. As it relies on hooking the loader, it cannot work on static binaries.
-2. If the target binary does not use the default libc's `_start` implementation
-   (crt1.o), the hook may not run.
-3. The hook will replace argv with pointers to `.data` of `argvfuzz.so`. If the
-   target binary expects argv to be living on the stack, things may go wrong.