wasmadder

wasmadder is a tiny command-line tool for adding data to custom sections in WebAssembly binaries.

Features

• Add data to a custom section in a WebAssembly binary
• Specify input and output files

Installation

Build from source using Cargo:

git clone https://github.com/yourusername/wasmadder.git
cd wasmadder
cargo build --release

Usage

wasmadder add --input <input.wasm> --data <data.bin> --section <section_name> --output <output.wasm>

Arguments

• -i, --input: Input WebAssembly binary file (required)
• -d, --data: Data file to be added (required)
• -s, --section: Custom section name (required)
• -o, --output: Output WebAssembly file (required)

Example

wasmadder add \
  --input input.wasm \
  --data data.bin \
  --section my_custom_section \
  --output output.wasm

This command first compresses then adds the contents of

data.bin

into the custom section my_custom_section of

input.wasm

and saves the result as

output.wasm

.

License

This project is licensed under the MIT License or the Apache License 2.0, at your option.