# FunFail

Funfail is a shared library that is used to simulate failures in memory allocation (malloc, calloc) and I/O operations (write, read) after a set number of uses. This can be useful for testing the robustness and error-handling capabilities of your programs.

## Usage

After making the shared object:

```
make
```

Copy the funfail.so to the path of the program you want to test. Preloading the funfail.so can be done using the `LD_PRELOAD` environment variable in Linux. Run your program while preloading the funfail.so and use one of the following env variables:
- MAX_MALLOC_CALLS
- MAX_CALLOC_CALLS
- MAX_WRITE_CALLS
- MAX_READ_CALLS

Example:
```
LD_PRELOAD=./funfail.so MAX_MALLOC_CALLS=5 ./myapp
```