https://github.com/eatonphil/badio

https://github.com/eatonphil/badio

Last synced: 3 days ago
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• Host: GitHub
• URL: https://github.com/eatonphil/badio
• Owner: eatonphil
• Created: 2023-09-29T19:58:13.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2023-09-30T17:27:10.000Z (about 1 year ago)
• Last Synced: 2024-10-13T04:13:06.182Z (about 1 month ago)
• Language: Zig
• Size: 6.84 KB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# badio

ptrace layer for triggering bad IO behavior.

Example:

```

$ make

$ (cd test && go build main.go)

$ cat test/main.go

package main

import (

	"os"

)

func main() {

	f, err := os.OpenFile("test.txt", os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0755)

	if err != nil {

		panic(err)

	}

	text := "some great stuff"

	_, _ = f.Write([]byte(text))

	_ = f.Close()

}

$ ./main test/main

Got a write on 3: some great stu

$ cat test.txt

some great stu

```

## Notes

* https://nullprogram.com/blog/2018/06/23/

* https://webdocs.cs.ualberta.ca/~paullu/C498/meng.ptrace.slides.pdf

* https://linux.die.net/man/2/ptrace

* https://man7.org/linux/man-pages/man2/write.2.html

* Calling convention https://stackoverflow.com/questions/2535989/what-are-the-calling-conventions-for-unix-linux-system-calls-and-user-space-f

On Go writes on Linux:

* https://cs.opensource.google/go/go/+/refs/tags/go1.21.1:src/internal/poll/fd_unix.go