wasibox-core 1.0.4

A collection of core utilities optimized for WASI
Documentation 
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use std::ffi::OsString;
use std::env;

pub fn execute<I, T>(args: I) -> Result<(), String>
where
    I: IntoIterator<Item = T>,
    T: Into<OsString> + Clone,
{
    let args_vec: Vec<OsString> = args.into_iter().map(|a| a.into()).collect();
    
    // For now, only support printing the environment
    if args_vec.len() <= 1 {
        for (key, value) in env::vars() {
            println!("{}={}", key, value);
        }
    } else {
        // Running a program in a modified environment is complex for a library function.
        // We could implement basic key=value setting here.
        return Err("env: command execution not yet supported".to_string());
    }
    Ok(())
}