| <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `/root/sunhe/incubator-teaclave/third_party/rust-sgx-sdk/sgx_urts/src/ocall/env.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>env.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../../normalize.css"><link rel="stylesheet" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../ayu.css" disabled><link rel="stylesheet" href="../../../dark.css" disabled><link rel="stylesheet" href="../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../storage.js"></script><script defer src="../../../source-script.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../main.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../../sgx_urts/index.html"><div class="logo-container"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../sgx_urts/index.html"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
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| </pre><pre class="rust"><code><span class="comment">// Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License.. |
| |
| </span><span class="kw">use </span><span class="kw">crate</span>::enclave::{args, env}; |
| <span class="kw">use </span><span class="kw">crate</span>::ocall::util::<span class="kw-2">*</span>; |
| <span class="kw">use </span>libc::{<span class="self">self</span>, c_char, c_int, c_uchar, gid_t, size_t, ssize_t, uid_t}; |
| <span class="kw">use </span>std::io::Error; |
| <span class="kw">use </span>std::ptr; |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>u_getuid_ocall() -> uid_t { |
| libc::getuid() |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>u_getgid_ocall() -> gid_t { |
| libc::getgid() |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>u_env_ocall( |
| error: <span class="kw-2">*mut </span>c_int, |
| buf: <span class="kw-2">*mut </span>c_uchar, |
| bufsz: size_t, |
| ) -> ssize_t { |
| <span class="kw">if </span>bufsz == <span class="number">0 </span>|| buf.is_null() { |
| set_error(error, libc::EINVAL); |
| <span class="kw">return </span>-<span class="number">1</span>; |
| } |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>errno = <span class="number">0</span>; |
| <span class="kw">let </span>env = env(); |
| <span class="kw">let </span>sn = env.len(); |
| <span class="kw">let </span>ret = <span class="kw">if </span>bufsz >= sn { |
| ptr::copy_nonoverlapping(env.as_ptr(), buf, sn); |
| sn <span class="kw">as </span>ssize_t |
| } <span class="kw">else </span>{ |
| errno = libc::ERANGE; |
| -<span class="number">1 |
| </span>}; |
| |
| set_error(error, errno); |
| ret |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>u_args_ocall( |
| error: <span class="kw-2">*mut </span>c_int, |
| buf: <span class="kw-2">*mut </span>c_uchar, |
| bufsz: size_t, |
| ) -> ssize_t { |
| <span class="kw">if </span>bufsz == <span class="number">0 </span>|| buf.is_null() { |
| set_error(error, libc::EINVAL); |
| <span class="kw">return </span>-<span class="number">1</span>; |
| } |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>errno = <span class="number">0</span>; |
| <span class="kw">let </span>args = args(); |
| <span class="kw">let </span>sn = args.len(); |
| <span class="kw">let </span>ret = <span class="kw">if </span>bufsz >= sn { |
| ptr::copy_nonoverlapping(args.as_ptr(), buf, sn); |
| sn <span class="kw">as </span>ssize_t |
| } <span class="kw">else </span>{ |
| errno = libc::ERANGE; |
| -<span class="number">1 |
| </span>}; |
| |
| set_error(error, errno); |
| ret |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>u_getcwd_ocall( |
| error: <span class="kw-2">*mut </span>c_int, |
| buf: <span class="kw-2">*mut </span>c_char, |
| bufsz: size_t, |
| ) -> c_int { |
| <span class="kw">if </span>bufsz == <span class="number">0 </span>|| buf.is_null() { |
| set_error(error, libc::EINVAL); |
| <span class="kw">return </span>-<span class="number">1</span>; |
| } |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>errno = <span class="number">0</span>; |
| <span class="kw">let </span>ret = libc::getcwd(buf, bufsz); |
| <span class="kw">let </span>ret = <span class="kw">if </span>ret.is_null() { |
| errno = Error::last_os_error().raw_os_error().unwrap_or(<span class="number">0</span>); |
| -<span class="number">1 |
| </span>} <span class="kw">else </span>{ |
| <span class="number">0 |
| </span>}; |
| set_error(error, errno); |
| ret |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>u_chdir_ocall(error: <span class="kw-2">*mut </span>c_int, dir: <span class="kw-2">*const </span>c_char) -> c_int { |
| <span class="kw">let </span><span class="kw-2">mut </span>errno = <span class="number">0</span>; |
| <span class="kw">let </span>ret = libc::chdir(dir); |
| <span class="kw">if </span>ret < <span class="number">0 </span>{ |
| errno = Error::last_os_error().raw_os_error().unwrap_or(<span class="number">0</span>); |
| } |
| set_error(error, errno); |
| ret |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="sgx_urts" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
