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//@ run-pass
// Ignore this test on Android, because it segfaults there.
//@ ignore-android
//@ ignore-windows
//@ ignore-wasm32 no execve
//@ ignore-sgx no execve
//@ ignore-vxworks no execve
//@ ignore-fuchsia no 'execve'
//@ no-prefer-dynamic
#![feature(rustc_private)]
extern crate libc;
use libc::c_char;
use libc::execve;
use std::env;
use std::ffi::CString;
use std::os::unix::prelude::*;
use std::ptr;
fn main() {
if env::args_os().count() == 2 {
for (key, value) in env::vars_os() {
panic!("found env value {:?} {:?}", key, value);
}
return;
}
let current_exe = CString::new(env::current_exe()
.unwrap()
.as_os_str()
.as_bytes()).unwrap();
let new_env_var = CString::new("FOOBAR").unwrap();
let filename: *const c_char = current_exe.as_ptr();
let argv: &[*const c_char] = &[filename, filename, ptr::null()];
let envp: &[*const c_char] = &[new_env_var.as_ptr(), ptr::null()];
unsafe {
execve(filename, &argv[0], &envp[0]);
}
panic!("execve failed");
}
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