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authorVivian Lim <[email protected]>2021-02-06 22:11:59 -0800
committerVivian Lim <[email protected]>2021-02-06 22:11:59 -0800
commit64423f0e34cc4a7d78c15b345b3b8f58243d8286 (patch)
treecc20e2e7f0fc35abf470e20e61d3d48f0d954f3b /ctr-std/src/sys/windows/process.rs
parentSupport libctru 2.0 (diff)
downloadctru-rs-64423f0e34cc4a7d78c15b345b3b8f58243d8286.tar.xz
ctru-rs-64423f0e34cc4a7d78c15b345b3b8f58243d8286.zip
Delete ctr-std to use my fork of the rust repo instead
Diffstat (limited to 'ctr-std/src/sys/windows/process.rs')
-rw-r--r--ctr-std/src/sys/windows/process.rs581
1 files changed, 0 insertions, 581 deletions
diff --git a/ctr-std/src/sys/windows/process.rs b/ctr-std/src/sys/windows/process.rs
deleted file mode 100644
index 4974a8d..0000000
--- a/ctr-std/src/sys/windows/process.rs
+++ /dev/null
@@ -1,581 +0,0 @@
-// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#![unstable(feature = "process_internals", issue = "0")]
-
-use collections::BTreeMap;
-use env::split_paths;
-use env;
-use ffi::{OsString, OsStr};
-use fmt;
-use fs;
-use io::{self, Error, ErrorKind};
-use libc::{c_void, EXIT_SUCCESS, EXIT_FAILURE};
-use mem;
-use os::windows::ffi::OsStrExt;
-use path::Path;
-use ptr;
-use sys::mutex::Mutex;
-use sys::c;
-use sys::fs::{OpenOptions, File};
-use sys::handle::Handle;
-use sys::pipe::{self, AnonPipe};
-use sys::stdio;
-use sys::cvt;
-use sys_common::{AsInner, FromInner, IntoInner};
-use sys_common::process::{CommandEnv, EnvKey};
-use borrow::Borrow;
-
-////////////////////////////////////////////////////////////////////////////////
-// Command
-////////////////////////////////////////////////////////////////////////////////
-
-#[derive(Clone, Debug, Eq, PartialEq, Ord, PartialOrd)]
-#[doc(hidden)]
-pub struct WindowsEnvKey(OsString);
-
-impl From<OsString> for WindowsEnvKey {
- fn from(k: OsString) -> Self {
- let mut buf = k.into_inner().into_inner();
- buf.make_ascii_uppercase();
- WindowsEnvKey(FromInner::from_inner(FromInner::from_inner(buf)))
- }
-}
-
-impl From<WindowsEnvKey> for OsString {
- fn from(k: WindowsEnvKey) -> Self { k.0 }
-}
-
-impl Borrow<OsStr> for WindowsEnvKey {
- fn borrow(&self) -> &OsStr { &self.0 }
-}
-
-impl AsRef<OsStr> for WindowsEnvKey {
- fn as_ref(&self) -> &OsStr { &self.0 }
-}
-
-impl EnvKey for WindowsEnvKey {}
-
-
-fn ensure_no_nuls<T: AsRef<OsStr>>(str: T) -> io::Result<T> {
- if str.as_ref().encode_wide().any(|b| b == 0) {
- Err(io::Error::new(ErrorKind::InvalidInput, "nul byte found in provided data"))
- } else {
- Ok(str)
- }
-}
-
-pub struct Command {
- program: OsString,
- args: Vec<OsString>,
- env: CommandEnv<WindowsEnvKey>,
- cwd: Option<OsString>,
- flags: u32,
- detach: bool, // not currently exposed in std::process
- stdin: Option<Stdio>,
- stdout: Option<Stdio>,
- stderr: Option<Stdio>,
-}
-
-pub enum Stdio {
- Inherit,
- Null,
- MakePipe,
- Handle(Handle),
-}
-
-pub struct StdioPipes {
- pub stdin: Option<AnonPipe>,
- pub stdout: Option<AnonPipe>,
- pub stderr: Option<AnonPipe>,
-}
-
-struct DropGuard<'a> {
- lock: &'a Mutex,
-}
-
-impl Command {
- pub fn new(program: &OsStr) -> Command {
- Command {
- program: program.to_os_string(),
- args: Vec::new(),
- env: Default::default(),
- cwd: None,
- flags: 0,
- detach: false,
- stdin: None,
- stdout: None,
- stderr: None,
- }
- }
-
- pub fn arg(&mut self, arg: &OsStr) {
- self.args.push(arg.to_os_string())
- }
- pub fn env_mut(&mut self) -> &mut CommandEnv<WindowsEnvKey> {
- &mut self.env
- }
- pub fn cwd(&mut self, dir: &OsStr) {
- self.cwd = Some(dir.to_os_string())
- }
- pub fn stdin(&mut self, stdin: Stdio) {
- self.stdin = Some(stdin);
- }
- pub fn stdout(&mut self, stdout: Stdio) {
- self.stdout = Some(stdout);
- }
- pub fn stderr(&mut self, stderr: Stdio) {
- self.stderr = Some(stderr);
- }
- pub fn creation_flags(&mut self, flags: u32) {
- self.flags = flags;
- }
-
- pub fn spawn(&mut self, default: Stdio, needs_stdin: bool)
- -> io::Result<(Process, StdioPipes)> {
- let maybe_env = self.env.capture_if_changed();
- // To have the spawning semantics of unix/windows stay the same, we need
- // to read the *child's* PATH if one is provided. See #15149 for more
- // details.
- let program = maybe_env.as_ref().and_then(|env| {
- if let Some(v) = env.get(OsStr::new("PATH")) {
- // Split the value and test each path to see if the
- // program exists.
- for path in split_paths(&v) {
- let path = path.join(self.program.to_str().unwrap())
- .with_extension(env::consts::EXE_EXTENSION);
- if fs::metadata(&path).is_ok() {
- return Some(path.into_os_string())
- }
- }
- }
- None
- });
-
- let mut si = zeroed_startupinfo();
- si.cb = mem::size_of::<c::STARTUPINFO>() as c::DWORD;
- si.dwFlags = c::STARTF_USESTDHANDLES;
-
- let program = program.as_ref().unwrap_or(&self.program);
- let mut cmd_str = make_command_line(program, &self.args)?;
- cmd_str.push(0); // add null terminator
-
- // stolen from the libuv code.
- let mut flags = self.flags | c::CREATE_UNICODE_ENVIRONMENT;
- if self.detach {
- flags |= c::DETACHED_PROCESS | c::CREATE_NEW_PROCESS_GROUP;
- }
-
- let (envp, _data) = make_envp(maybe_env)?;
- let (dirp, _data) = make_dirp(self.cwd.as_ref())?;
- let mut pi = zeroed_process_information();
-
- // Prepare all stdio handles to be inherited by the child. This
- // currently involves duplicating any existing ones with the ability to
- // be inherited by child processes. Note, however, that once an
- // inheritable handle is created, *any* spawned child will inherit that
- // handle. We only want our own child to inherit this handle, so we wrap
- // the remaining portion of this spawn in a mutex.
- //
- // For more information, msdn also has an article about this race:
- // http://support.microsoft.com/kb/315939
- static CREATE_PROCESS_LOCK: Mutex = Mutex::new();
- let _guard = DropGuard::new(&CREATE_PROCESS_LOCK);
-
- let mut pipes = StdioPipes {
- stdin: None,
- stdout: None,
- stderr: None,
- };
- let null = Stdio::Null;
- let default_stdin = if needs_stdin {&default} else {&null};
- let stdin = self.stdin.as_ref().unwrap_or(default_stdin);
- let stdout = self.stdout.as_ref().unwrap_or(&default);
- let stderr = self.stderr.as_ref().unwrap_or(&default);
- let stdin = stdin.to_handle(c::STD_INPUT_HANDLE, &mut pipes.stdin)?;
- let stdout = stdout.to_handle(c::STD_OUTPUT_HANDLE,
- &mut pipes.stdout)?;
- let stderr = stderr.to_handle(c::STD_ERROR_HANDLE,
- &mut pipes.stderr)?;
- si.hStdInput = stdin.raw();
- si.hStdOutput = stdout.raw();
- si.hStdError = stderr.raw();
-
- unsafe {
- cvt(c::CreateProcessW(ptr::null(),
- cmd_str.as_mut_ptr(),
- ptr::null_mut(),
- ptr::null_mut(),
- c::TRUE, flags, envp, dirp,
- &mut si, &mut pi))
- }?;
-
- // We close the thread handle because we don't care about keeping
- // the thread id valid, and we aren't keeping the thread handle
- // around to be able to close it later.
- drop(Handle::new(pi.hThread));
-
- Ok((Process { handle: Handle::new(pi.hProcess) }, pipes))
- }
-
-}
-
-impl fmt::Debug for Command {
- fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
- write!(f, "{:?}", self.program)?;
- for arg in &self.args {
- write!(f, " {:?}", arg)?;
- }
- Ok(())
- }
-}
-
-impl<'a> DropGuard<'a> {
- fn new(lock: &'a Mutex) -> DropGuard<'a> {
- unsafe {
- lock.lock();
- DropGuard { lock: lock }
- }
- }
-}
-
-impl<'a> Drop for DropGuard<'a> {
- fn drop(&mut self) {
- unsafe {
- self.lock.unlock();
- }
- }
-}
-
-impl Stdio {
- fn to_handle(&self, stdio_id: c::DWORD, pipe: &mut Option<AnonPipe>)
- -> io::Result<Handle> {
- match *self {
- // If no stdio handle is available, then inherit means that it
- // should still be unavailable so propagate the
- // INVALID_HANDLE_VALUE.
- Stdio::Inherit => {
- match stdio::get(stdio_id) {
- Ok(io) => {
- let io = Handle::new(io.handle());
- let ret = io.duplicate(0, true,
- c::DUPLICATE_SAME_ACCESS);
- io.into_raw();
- return ret
- }
- Err(..) => Ok(Handle::new(c::INVALID_HANDLE_VALUE)),
- }
- }
-
- Stdio::MakePipe => {
- let ours_readable = stdio_id != c::STD_INPUT_HANDLE;
- let pipes = pipe::anon_pipe(ours_readable)?;
- *pipe = Some(pipes.ours);
- cvt(unsafe {
- c::SetHandleInformation(pipes.theirs.handle().raw(),
- c::HANDLE_FLAG_INHERIT,
- c::HANDLE_FLAG_INHERIT)
- })?;
- Ok(pipes.theirs.into_handle())
- }
-
- Stdio::Handle(ref handle) => {
- handle.duplicate(0, true, c::DUPLICATE_SAME_ACCESS)
- }
-
- // Open up a reference to NUL with appropriate read/write
- // permissions as well as the ability to be inherited to child
- // processes (as this is about to be inherited).
- Stdio::Null => {
- let size = mem::size_of::<c::SECURITY_ATTRIBUTES>();
- let mut sa = c::SECURITY_ATTRIBUTES {
- nLength: size as c::DWORD,
- lpSecurityDescriptor: ptr::null_mut(),
- bInheritHandle: 1,
- };
- let mut opts = OpenOptions::new();
- opts.read(stdio_id == c::STD_INPUT_HANDLE);
- opts.write(stdio_id != c::STD_INPUT_HANDLE);
- opts.security_attributes(&mut sa);
- File::open(Path::new("NUL"), &opts).map(|file| {
- file.into_handle()
- })
- }
- }
- }
-}
-
-impl From<AnonPipe> for Stdio {
- fn from(pipe: AnonPipe) -> Stdio {
- Stdio::Handle(pipe.into_handle())
- }
-}
-
-impl From<File> for Stdio {
- fn from(file: File) -> Stdio {
- Stdio::Handle(file.into_handle())
- }
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// Processes
-////////////////////////////////////////////////////////////////////////////////
-
-/// A value representing a child process.
-///
-/// The lifetime of this value is linked to the lifetime of the actual
-/// process - the Process destructor calls self.finish() which waits
-/// for the process to terminate.
-pub struct Process {
- handle: Handle,
-}
-
-impl Process {
- pub fn kill(&mut self) -> io::Result<()> {
- cvt(unsafe {
- c::TerminateProcess(self.handle.raw(), 1)
- })?;
- Ok(())
- }
-
- pub fn id(&self) -> u32 {
- unsafe {
- c::GetProcessId(self.handle.raw()) as u32
- }
- }
-
- pub fn wait(&mut self) -> io::Result<ExitStatus> {
- unsafe {
- let res = c::WaitForSingleObject(self.handle.raw(), c::INFINITE);
- if res != c::WAIT_OBJECT_0 {
- return Err(Error::last_os_error())
- }
- let mut status = 0;
- cvt(c::GetExitCodeProcess(self.handle.raw(), &mut status))?;
- Ok(ExitStatus(status))
- }
- }
-
- pub fn try_wait(&mut self) -> io::Result<Option<ExitStatus>> {
- unsafe {
- match c::WaitForSingleObject(self.handle.raw(), 0) {
- c::WAIT_OBJECT_0 => {}
- c::WAIT_TIMEOUT => {
- return Ok(None);
- }
- _ => return Err(io::Error::last_os_error()),
- }
- let mut status = 0;
- cvt(c::GetExitCodeProcess(self.handle.raw(), &mut status))?;
- Ok(Some(ExitStatus(status)))
- }
- }
-
- pub fn handle(&self) -> &Handle { &self.handle }
-
- pub fn into_handle(self) -> Handle { self.handle }
-}
-
-#[derive(PartialEq, Eq, Clone, Copy, Debug)]
-pub struct ExitStatus(c::DWORD);
-
-impl ExitStatus {
- pub fn success(&self) -> bool {
- self.0 == 0
- }
- pub fn code(&self) -> Option<i32> {
- Some(self.0 as i32)
- }
-}
-
-impl From<c::DWORD> for ExitStatus {
- fn from(u: c::DWORD) -> ExitStatus {
- ExitStatus(u)
- }
-}
-
-impl fmt::Display for ExitStatus {
- fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
- write!(f, "exit code: {}", self.0)
- }
-}
-
-#[derive(PartialEq, Eq, Clone, Copy, Debug)]
-pub struct ExitCode(c::DWORD);
-
-impl ExitCode {
- pub const SUCCESS: ExitCode = ExitCode(EXIT_SUCCESS as _);
- pub const FAILURE: ExitCode = ExitCode(EXIT_FAILURE as _);
-
- #[inline]
- pub fn as_i32(&self) -> i32 {
- self.0 as i32
- }
-}
-
-fn zeroed_startupinfo() -> c::STARTUPINFO {
- c::STARTUPINFO {
- cb: 0,
- lpReserved: ptr::null_mut(),
- lpDesktop: ptr::null_mut(),
- lpTitle: ptr::null_mut(),
- dwX: 0,
- dwY: 0,
- dwXSize: 0,
- dwYSize: 0,
- dwXCountChars: 0,
- dwYCountCharts: 0,
- dwFillAttribute: 0,
- dwFlags: 0,
- wShowWindow: 0,
- cbReserved2: 0,
- lpReserved2: ptr::null_mut(),
- hStdInput: c::INVALID_HANDLE_VALUE,
- hStdOutput: c::INVALID_HANDLE_VALUE,
- hStdError: c::INVALID_HANDLE_VALUE,
- }
-}
-
-fn zeroed_process_information() -> c::PROCESS_INFORMATION {
- c::PROCESS_INFORMATION {
- hProcess: ptr::null_mut(),
- hThread: ptr::null_mut(),
- dwProcessId: 0,
- dwThreadId: 0
- }
-}
-
-// Produces a wide string *without terminating null*; returns an error if
-// `prog` or any of the `args` contain a nul.
-fn make_command_line(prog: &OsStr, args: &[OsString]) -> io::Result<Vec<u16>> {
- // Encode the command and arguments in a command line string such
- // that the spawned process may recover them using CommandLineToArgvW.
- let mut cmd: Vec<u16> = Vec::new();
- // Always quote the program name so CreateProcess doesn't interpret args as
- // part of the name if the binary wasn't found first time.
- append_arg(&mut cmd, prog, true)?;
- for arg in args {
- cmd.push(' ' as u16);
- append_arg(&mut cmd, arg, false)?;
- }
- return Ok(cmd);
-
- fn append_arg(cmd: &mut Vec<u16>, arg: &OsStr, force_quotes: bool) -> io::Result<()> {
- // If an argument has 0 characters then we need to quote it to ensure
- // that it actually gets passed through on the command line or otherwise
- // it will be dropped entirely when parsed on the other end.
- ensure_no_nuls(arg)?;
- let arg_bytes = &arg.as_inner().inner.as_inner();
- let quote = force_quotes || arg_bytes.iter().any(|c| *c == b' ' || *c == b'\t')
- || arg_bytes.is_empty();
- if quote {
- cmd.push('"' as u16);
- }
-
- let mut iter = arg.encode_wide();
- let mut backslashes: usize = 0;
- while let Some(x) = iter.next() {
- if x == '\\' as u16 {
- backslashes += 1;
- } else {
- if x == '"' as u16 {
- // Add n+1 backslashes to total 2n+1 before internal '"'.
- cmd.extend((0..(backslashes + 1)).map(|_| '\\' as u16));
- }
- backslashes = 0;
- }
- cmd.push(x);
- }
-
- if quote {
- // Add n backslashes to total 2n before ending '"'.
- cmd.extend((0..backslashes).map(|_| '\\' as u16));
- cmd.push('"' as u16);
- }
- Ok(())
- }
-}
-
-fn make_envp(maybe_env: Option<BTreeMap<WindowsEnvKey, OsString>>)
- -> io::Result<(*mut c_void, Vec<u16>)> {
- // On Windows we pass an "environment block" which is not a char**, but
- // rather a concatenation of null-terminated k=v\0 sequences, with a final
- // \0 to terminate.
- if let Some(env) = maybe_env {
- let mut blk = Vec::new();
-
- for (k, v) in env {
- blk.extend(ensure_no_nuls(k.0)?.encode_wide());
- blk.push('=' as u16);
- blk.extend(ensure_no_nuls(v)?.encode_wide());
- blk.push(0);
- }
- blk.push(0);
- Ok((blk.as_mut_ptr() as *mut c_void, blk))
- } else {
- Ok((ptr::null_mut(), Vec::new()))
- }
-}
-
-fn make_dirp(d: Option<&OsString>) -> io::Result<(*const u16, Vec<u16>)> {
-
- match d {
- Some(dir) => {
- let mut dir_str: Vec<u16> = ensure_no_nuls(dir)?.encode_wide().collect();
- dir_str.push(0);
- Ok((dir_str.as_ptr(), dir_str))
- },
- None => Ok((ptr::null(), Vec::new()))
- }
-}
-
-#[cfg(test)]
-mod tests {
- use ffi::{OsStr, OsString};
- use super::make_command_line;
-
- #[test]
- fn test_make_command_line() {
- fn test_wrapper(prog: &str, args: &[&str]) -> String {
- let command_line = &make_command_line(OsStr::new(prog),
- &args.iter()
- .map(|a| OsString::from(a))
- .collect::<Vec<OsString>>())
- .unwrap();
- String::from_utf16(command_line).unwrap()
- }
-
- assert_eq!(
- test_wrapper("prog", &["aaa", "bbb", "ccc"]),
- "\"prog\" aaa bbb ccc"
- );
-
- assert_eq!(
- test_wrapper("C:\\Program Files\\blah\\blah.exe", &["aaa"]),
- "\"C:\\Program Files\\blah\\blah.exe\" aaa"
- );
- assert_eq!(
- test_wrapper("C:\\Program Files\\test", &["aa\"bb"]),
- "\"C:\\Program Files\\test\" aa\\\"bb"
- );
- assert_eq!(
- test_wrapper("echo", &["a b c"]),
- "\"echo\" \"a b c\""
- );
- assert_eq!(
- test_wrapper("echo", &["\" \\\" \\", "\\"]),
- "\"echo\" \"\\\" \\\\\\\" \\\\\" \\"
- );
- assert_eq!(
- test_wrapper("\u{03c0}\u{042f}\u{97f3}\u{00e6}\u{221e}", &[]),
- "\"\u{03c0}\u{042f}\u{97f3}\u{00e6}\u{221e}\""
- );
- }
-}