https://github.com/ba0f3/subhook.nim

subhook wrapper for Nim https://github.com/Zeex/subhook
https://github.com/ba0f3/subhook.nim

api hook hooking linux macos nim subhook unix windows

Last synced: about 1 month ago
JSON representation

subhook wrapper for Nim https://github.com/Zeex/subhook

• Host: GitHub
• URL: https://github.com/ba0f3/subhook.nim
• Owner: ba0f3
• License: bsd-2-clause
• Created: 2018-07-18T07:11:15.000Z (about 6 years ago)
• Default Branch: master
• Last Pushed: 2021-12-15T14:32:14.000Z (almost 3 years ago)
• Last Synced: 2024-05-02T18:50:32.176Z (5 months ago)
• Topics: api, hook, hooking, linux, macos, nim, subhook, unix, windows
• Language: Nim
• Homepage:
• Size: 17.6 KB
• Stars: 16
• Watchers: 2
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Funding: .github/FUNDING.yml
  • License: LICENSE

Awesome Lists containing this project

• awesome-hacking-lists - ba0f3/subhook.nim - subhook wrapper for Nim https://github.com/Zeex/subhook (Nim)

README

        
# subhook.nim

subhook wrapper for Nim https://github.com/Zeex/subhook

### Usage

```nim

import subhook, subhook/helpers

proc recv(s: SOCKET, buf: cstring, len: int32, flags: int32): int32 {.fptr.} = 0x123456

proc MY_recv(s: SOCKET, buf: cstring, len: int32, flags: int32): int32 {.stdcall.} =

  discard

let hook = initHook(recv, MY_recv)

if hook.install() != 0:

  quit "Unable to install revc hook"

```

Trampoline example:

```nim

import subhook

proc add2(a, b: int): int =

  result = a + b

  echo "add2 result = ", result

var addHook: Hook

proc double_add2(a, b: int): int =

  echo "add called"

  result = cast[typeof(add2)](addHook.getTrampoline())(a, b) * 2

addHook = initHook(add2, double_add2, true)

assert add2(1, 3) == 8

```