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use std::ffi::{CStr, CString};

use alpm_sys::*;

pub fn compute_md5sum<S: Into<String>>(s: S) -> Result<String, ()> {
    let s = CString::new(s.into()).unwrap();
    let ret = unsafe { alpm_compute_md5sum(s.as_ptr()) };
    if ret.is_null() {
        return Err(());
    }

    let s = unsafe { CStr::from_ptr(ret).to_str().unwrap() };
    Ok(s.into())
}

pub fn compute_sha256sum<S: Into<String>>(s: S) -> Result<String, ()> {
    let s = CString::new(s.into()).unwrap();
    let ret = unsafe { alpm_compute_sha256sum(s.as_ptr()) };
    if ret.is_null() {
        return Err(());
    }

    let s = unsafe { CStr::from_ptr(ret).to_str().unwrap() };
    Ok(s.into())
}