46 lines
1.3 KiB
Rust
46 lines
1.3 KiB
Rust
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// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// Ignore this test on Android, because it segfaults there.
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// ignore-android
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// ignore-windows
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// no-prefer-dynamic
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#![feature(convert)]
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#![feature(libc)]
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extern crate libc;
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use libc::c_char;
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use libc::execve;
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use std::env;
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use std::ffi::OsStr;
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use std::ptr;
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fn main() {
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if env::args_os().next().is_none() {
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for (key, value) in env::vars_os() {
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panic!("found env value {:?} {:?}", key, value);
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}
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return;
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}
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let current_exe = env::current_exe().unwrap().into_os_string().to_cstring().unwrap();
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let new_env_var = OsStr::new("FOOBAR").to_cstring().unwrap();
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let filename: *const c_char = current_exe.as_ptr();
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let argv: &[*const c_char] = &[ptr::null()];
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let envp: &[*const c_char] = &[new_env_var.as_ptr(), ptr::null()];
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unsafe {
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execve(filename, &argv[0], &envp[0]);
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}
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panic!("execve failed");
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}
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