sgx_urts/src/stdio.rs

// Copyright (c) 2017 Baidu, Inc. All Rights Reserved.
//
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// modification, are permitted provided that the following conditions
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use libc;

#[no_mangle]
pub extern "C" fn u_stdin_ocall(buf: * mut libc::c_void, nbytes: libc::size_t) -> libc::size_t {

    unsafe { libc::read(libc::STDIN_FILENO, buf, nbytes) as libc::size_t }
}

#[no_mangle]
pub extern "C" fn u_stdout_ocall(buf: * const libc::c_void, nbytes: libc::size_t) -> libc::size_t {
   
    unsafe { libc::write(libc::STDOUT_FILENO, buf, nbytes) as libc::size_t }
}

#[no_mangle]
pub extern "C" fn u_stderr_ocall(buf: * const libc::c_void, nbytes: libc::size_t) -> libc::size_t {
   
    unsafe { libc::write(libc::STDERR_FILENO, buf, nbytes) as libc::size_t }
}