Merge pull request #4121 from Lukylix/askpass-pipe-windows-fix

Fix askpass pipe on windows
This commit is contained in:
Kiril Videlov 2024-07-02 16:40:03 +02:00 committed by GitHub
commit be6eaa3156
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GPG Key ID: B5690EEEBB952194
7 changed files with 384 additions and 99 deletions

184
Cargo.lock generated
View File

@ -163,6 +163,21 @@ version = "0.7.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "96d30a06541fbafbc7f82ed10c06164cfbd2c401138f6addd8404629c4b16711"
[[package]]
name = "assert_cmd"
version = "2.0.14"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ed72493ac66d5804837f480ab3766c72bdfab91a65e565fc54fa9e42db0073a8"
dependencies = [
"anstyle",
"bstr",
"doc-comment",
"predicates",
"predicates-core",
"predicates-tree",
"wait-timeout",
]
[[package]]
name = "async-broadcast"
version = "0.5.1"
@ -1257,6 +1272,12 @@ version = "0.1.13"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "56254986775e3233ffa9c4d7d3faaf6d36a2c09d30b20687e9f88bc8bafc16c8"
[[package]]
name = "difflib"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6184e33543162437515c2e2b48714794e37845ec9851711914eec9d308f6ebe8"
[[package]]
name = "diffy"
version = "0.3.0"
@ -1314,7 +1335,7 @@ checksum = "1b1d1d91c932ef41c0f2663aa8b0ca0342d444d842c06914aa0a7e352d0bada6"
dependencies = [
"libc",
"redox_users",
"winapi 0.3.9",
"winapi",
]
[[package]]
@ -1337,7 +1358,7 @@ checksum = "4ebda144c4fe02d1f7ea1a7d9641b6fc6b580adcfa024ae48797ecdeb6825b4d"
dependencies = [
"libc",
"redox_users",
"winapi 0.3.9",
"winapi",
]
[[package]]
@ -1346,6 +1367,12 @@ version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "bd0c93bb4b0c6d9b77f4435b0ae98c24d17f1c45b2ff844c6151a07256ca923b"
[[package]]
name = "doc-comment"
version = "0.3.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fea41bba32d969b513997752735605054bc0dfa92b4c56bf1189f2e174be7a10"
[[package]]
name = "dtoa"
version = "1.0.9"
@ -1491,7 +1518,7 @@ checksum = "f639046355ee4f37944e44f60642c6f3a7efa3cf6b78c78a0d989a8ce6c396a1"
dependencies = [
"errno-dragonfly",
"libc",
"winapi 0.3.9",
"winapi",
]
[[package]]
@ -1719,7 +1746,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "04412b8935272e3a9bae6f48c7bfff74c2911f60525404edfdd28e49884c3bfb"
dependencies = [
"libc",
"winapi 0.3.9",
"winapi",
]
[[package]]
@ -2045,7 +2072,7 @@ dependencies = [
"gobject-sys",
"libc",
"system-deps 6.2.2",
"winapi 0.3.9",
"winapi",
]
[[package]]
@ -2140,6 +2167,7 @@ dependencies = [
name = "gitbutler-git"
version = "0.0.0"
dependencies = [
"assert_cmd",
"futures",
"gix-path 0.10.8 (registry+https://github.com/rust-lang/crates.io-index)",
"nix 0.29.0",
@ -2149,8 +2177,7 @@ dependencies = [
"thiserror",
"tokio",
"uuid",
"winapi 0.3.9",
"windows-named-pipe",
"windows 0.57.0",
]
[[package]]
@ -3430,7 +3457,7 @@ dependencies = [
"iana-time-zone-haiku",
"js-sys",
"wasm-bindgen",
"windows-core",
"windows-core 0.52.0",
]
[[package]]
@ -3725,16 +3752,6 @@ dependencies = [
"thiserror",
]
[[package]]
name = "kernel32-sys"
version = "0.2.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
dependencies = [
"winapi 0.2.8",
"winapi-build",
]
[[package]]
name = "keyring"
version = "2.3.3"
@ -4176,7 +4193,7 @@ version = "0.4.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e8a3895c6391c39d7fe7ebc444a87eb2991b2a0bc718fdabd071eec617fc68e4"
dependencies = [
"winapi 0.3.9",
"winapi",
]
[[package]]
@ -4186,7 +4203,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "77a8165726e8236064dbb45459242600304b42a5ea24ee2948e18e023bf7ba84"
dependencies = [
"overload",
"winapi 0.3.9",
"winapi",
]
[[package]]
@ -4599,7 +4616,7 @@ dependencies = [
"libc",
"redox_syscall 0.2.16",
"smallvec",
"winapi 0.3.9",
"winapi",
]
[[package]]
@ -4938,6 +4955,33 @@ version = "0.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "925383efa346730478fb4838dbe9137d2a47675ad789c546d150a6e1dd4ab31c"
[[package]]
name = "predicates"
version = "3.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "68b87bfd4605926cdfefc1c3b5f8fe560e3feca9d5552cf68c466d3d8236c7e8"
dependencies = [
"anstyle",
"difflib",
"predicates-core",
]
[[package]]
name = "predicates-core"
version = "1.0.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b794032607612e7abeb4db69adb4e33590fa6cf1149e95fd7cb00e634b92f174"
[[package]]
name = "predicates-tree"
version = "1.0.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "368ba315fb8c5052ab692e68a0eefec6ec57b23a36959c14496f0b0df2c0cecf"
dependencies = [
"predicates-core",
"termtree",
]
[[package]]
name = "pretty_assertions"
version = "1.4.0"
@ -6050,7 +6094,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9f7916fc008ca5542385b89a3d3ce689953c143e9304a9bf8beec1de48994c0d"
dependencies = [
"libc",
"winapi 0.3.9",
"winapi",
]
[[package]]
@ -6409,7 +6453,7 @@ dependencies = [
"unicode-segmentation",
"uuid",
"windows 0.39.0",
"windows-implement",
"windows-implement 0.39.0",
"x11-dl",
]
@ -6578,7 +6622,7 @@ dependencies = [
"serde",
"tauri",
"time",
"winapi 0.3.9",
"winapi",
]
[[package]]
@ -6740,6 +6784,12 @@ dependencies = [
"utf-8",
]
[[package]]
name = "termtree"
version = "0.4.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3369f5ac52d5eb6ab48c6b4ffdc8efbcad6b89c765749064ba298f2c68a16a76"
[[package]]
name = "thin-slice"
version = "0.1.1"
@ -7152,7 +7202,7 @@ checksum = "89daebc3e6fd160ac4aa9fc8b3bf71e1f74fbf92367ae71fb83a037e8bf164b9"
dependencies = [
"memoffset 0.9.1",
"tempfile",
"winapi 0.3.9",
"winapi",
]
[[package]]
@ -7297,6 +7347,15 @@ dependencies = [
"libc",
]
[[package]]
name = "wait-timeout"
version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9f200f5b12eb75f8c1ed65abd4b2db8a6e1b138a20de009dacee265a2498f3f6"
dependencies = [
"libc",
]
[[package]]
name = "waker-fn"
version = "1.2.0"
@ -7479,7 +7538,7 @@ dependencies = [
"webview2-com-macros",
"webview2-com-sys",
"windows 0.39.0",
"windows-implement",
"windows-implement 0.39.0",
]
[[package]]
@ -7514,12 +7573,6 @@ version = "0.1.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "53a85b86a771b1c87058196170769dd264f66c0782acf1ae6cc51bfd64b39082"
[[package]]
name = "winapi"
version = "0.2.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
[[package]]
name = "winapi"
version = "0.3.9"
@ -7530,12 +7583,6 @@ dependencies = [
"winapi-x86_64-pc-windows-gnu",
]
[[package]]
name = "winapi-build"
version = "0.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
[[package]]
name = "winapi-i686-pc-windows-gnu"
version = "0.4.0"
@ -7576,7 +7623,7 @@ version = "0.39.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f1c4bd0a50ac6020f65184721f758dba47bb9fbc2133df715ec74a237b26794a"
dependencies = [
"windows-implement",
"windows-implement 0.39.0",
"windows_aarch64_msvc 0.39.0",
"windows_i686_gnu 0.39.0",
"windows_i686_msvc 0.39.0",
@ -7599,7 +7646,17 @@ version = "0.52.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e48a53791691ab099e5e2ad123536d0fff50652600abaf43bbf952894110d0be"
dependencies = [
"windows-core",
"windows-core 0.52.0",
"windows-targets 0.52.5",
]
[[package]]
name = "windows"
version = "0.57.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "12342cb4d8e3b046f3d80effd474a7a02447231330ef77d71daa6fbc40681143"
dependencies = [
"windows-core 0.57.0",
"windows-targets 0.52.5",
]
@ -7622,6 +7679,18 @@ dependencies = [
"windows-targets 0.52.5",
]
[[package]]
name = "windows-core"
version = "0.57.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d2ed2439a290666cd67ecce2b0ffaad89c2a56b976b736e6ece670297897832d"
dependencies = [
"windows-implement 0.57.0",
"windows-interface",
"windows-result",
"windows-targets 0.52.5",
]
[[package]]
name = "windows-implement"
version = "0.39.0"
@ -7632,6 +7701,28 @@ dependencies = [
"windows-tokens",
]
[[package]]
name = "windows-implement"
version = "0.57.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9107ddc059d5b6fbfbffdfa7a7fe3e22a226def0b2608f72e9d552763d3e1ad7"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.68",
]
[[package]]
name = "windows-interface"
version = "0.57.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "29bee4b38ea3cde66011baa44dba677c432a78593e202392d1e9070cf2a7fca7"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.68",
]
[[package]]
name = "windows-metadata"
version = "0.39.0"
@ -7639,13 +7730,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9ee5e275231f07c6e240d14f34e1b635bf1faa1c76c57cfd59a5cdb9848e4278"
[[package]]
name = "windows-named-pipe"
version = "0.1.0"
name = "windows-result"
version = "0.1.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "808ba65b3d86cc5465971ad08ee3850e197cc8d5719277611fabb27827c02388"
checksum = "5e383302e8ec8515204254685643de10811af0ed97ea37210dc26fb0032647f8"
dependencies = [
"kernel32-sys",
"winapi 0.2.8",
"windows-targets 0.52.5",
]
[[package]]
@ -8016,7 +8106,7 @@ dependencies = [
"webkit2gtk-sys",
"webview2-com",
"windows 0.39.0",
"windows-implement",
"windows-implement 0.39.0",
]
[[package]]
@ -8110,7 +8200,7 @@ dependencies = [
"static_assertions",
"tracing",
"uds_windows",
"winapi 0.3.9",
"winapi",
"xdg-home",
"zbus_macros",
"zbus_names",

View File

@ -202,7 +202,7 @@ This paragraph is about crosscompilation to x86_64-MSVC from ARM Windows,
a configuration typical for people with Apple Silicon and Parallels VMs,
which only allow ARM Windows to be used.
The `winapi` dependency on `gitbutler-git` doesn't currently compile on ARM,
The `windows` dependency on `gitbutler-git` doesn't currently compile on ARM,
which means cross-compilation to x86-64 is required to workaround that. Besides,
most users will probably still be on INTEL machines, making this capability
a common requirement.

View File

@ -45,10 +45,21 @@ gix-path = "0.10.7"
nix = { version = "0.29.0", features = ["process", "socket", "user"] }
[target."cfg(windows)".dependencies]
winapi = { version = "0.3.9", features = ["winbase", "namedpipeapi"] }
windows = { version = "0.57.0", features = [
"Win32",
"Win32_System",
"Win32_System_Pipes",
"Win32_Storage",
"Win32_Storage_FileSystem",
"Win32_Security",
"Win32_System_IO",
"Win32_System_Threading",
] }
tokio = { workspace = true, optional = true, features = ["sync"] }
# synchronous named pipes for the askpass utility
windows-named-pipe = "0.1.0"
[dev-dependencies]
assert_cmd = "2.0.14"
tokio = { workspace = true, features = ["macros", "rt-multi-thread"] }
[lints.clippy]
all = "deny"

View File

@ -0,0 +1,160 @@
use std::io::{self, Read, Write};
use std::os::windows::ffi::OsStrExt;
use std::os::windows::io::{AsRawHandle, FromRawHandle, IntoRawHandle, RawHandle};
use std::path::Path;
use windows::core::PWSTR;
use windows::Win32::Foundation::{
CloseHandle, DuplicateHandle, BOOL, DUPLICATE_SAME_ACCESS, ERROR_PIPE_NOT_CONNECTED,
GENERIC_READ, GENERIC_WRITE, HANDLE, WIN32_ERROR,
};
use windows::Win32::Storage::FileSystem::{
CreateFileW, FlushFileBuffers, ReadFile, WriteFile, FILE_ATTRIBUTE_NORMAL, FILE_SHARE_READ,
FILE_SHARE_WRITE, OPEN_EXISTING,
};
use windows::Win32::System::Pipes::{WaitNamedPipeW, NMPWAIT_USE_DEFAULT_WAIT};
use windows::Win32::System::Threading::GetCurrentProcess;
#[derive(Debug)]
struct Handle {
inner: HANDLE,
}
unsafe impl Send for Handle {}
unsafe impl Sync for Handle {}
impl Handle {
fn try_clone(&self) -> io::Result<Handle> {
let mut new_handle = HANDLE::default();
let current_ps_handle: HANDLE = unsafe { GetCurrentProcess() };
let res = unsafe {
DuplicateHandle(
current_ps_handle,
self.inner,
current_ps_handle,
&mut new_handle as *mut HANDLE,
0,
BOOL(1),
DUPLICATE_SAME_ACCESS,
)
};
match res {
Ok(_) => Ok(Handle { inner: new_handle }),
Err(err) => Err(io::Error::from_raw_os_error(err.code().0)),
}
}
}
impl Drop for Handle {
fn drop(&mut self) {
let _ = unsafe { CloseHandle(self.inner) };
}
}
#[derive(Debug)]
pub struct Pipe {
handle: Handle,
}
impl Pipe {
pub fn connect(path: &Path) -> io::Result<Pipe> {
let mut wide_path: Vec<u16> = path
.as_os_str()
.encode_wide()
.chain(std::iter::once(0))
.collect();
let pwstr_path = PWSTR(wide_path.as_mut_ptr());
let _ = unsafe { WaitNamedPipeW(pwstr_path, NMPWAIT_USE_DEFAULT_WAIT) };
let handle_res = unsafe {
CreateFileW(
pwstr_path,
GENERIC_READ.0 | GENERIC_WRITE.0,
FILE_SHARE_READ | FILE_SHARE_WRITE,
None,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
None,
)
};
match handle_res {
Ok(handle) => Ok(Pipe {
handle: Handle { inner: handle },
}),
Err(err) => Err(io::Error::from_raw_os_error(err.code().0)),
}
}
pub fn get_handle(&self) -> HANDLE {
self.handle.inner
}
pub fn try_clone(&self) -> io::Result<Pipe> {
let handle = self.handle.try_clone()?;
Ok(Pipe { handle })
}
}
impl Drop for Pipe {
fn drop(&mut self) {
let _ = unsafe { FlushFileBuffers(self.handle.inner) };
}
}
impl Read for Pipe {
fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
let mut bytes_read = 0u32;
let res = unsafe { ReadFile(self.handle.inner, Some(buf), Some(&mut bytes_read), None) };
match res {
Ok(_) => Ok(bytes_read as usize),
Err(err) => match WIN32_ERROR::from_error(&err) {
Some(ERROR_PIPE_NOT_CONNECTED) => Ok(0),
_ => Err(io::Error::from_raw_os_error(err.code().0)),
},
}
}
}
impl Write for Pipe {
fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
let mut bytes_written = 0u32;
let res =
unsafe { WriteFile(self.handle.inner, Some(buf), Some(&mut bytes_written), None) };
match res {
Ok(_) => Ok(bytes_written as usize),
Err(err) => Err(io::Error::from_raw_os_error(err.code().0)),
}
}
fn flush(&mut self) -> io::Result<()> {
let res = unsafe { FlushFileBuffers(self.handle.inner) };
match res {
Ok(_) => Ok(()),
Err(err) => Err(io::Error::from_raw_os_error(err.code().0)),
}
}
}
impl AsRawHandle for Pipe {
fn as_raw_handle(&self) -> RawHandle {
self.handle.inner.0 as RawHandle
}
}
impl IntoRawHandle for Pipe {
fn into_raw_handle(self) -> RawHandle {
self.handle.inner.0 as RawHandle
}
}
impl FromRawHandle for Pipe {
unsafe fn from_raw_handle(handle: RawHandle) -> Self {
let handle = HANDLE(handle as isize);
Pipe {
handle: Handle { inner: handle },
}
}
}

View File

@ -1,12 +1,11 @@
use std::{
io,
os::windows::io::{AsRawHandle, FromRawHandle},
time::Duration,
};
use windows_named_pipe::PipeStream;
use std::{io, time::Duration};
use windows::Win32::System::Pipes::SetNamedPipeHandleState;
#[path = "windows-pipe.rs"]
mod windows_pipe;
use windows_pipe::Pipe;
pub fn establish(sock_path: &str) -> PipeStream {
PipeStream::connect(sock_path).unwrap()
pub fn establish(sock_path: &str) -> Pipe {
Pipe::connect(std::path::Path::new(sock_path)).unwrap()
}
/// There are some methods we need in order to run askpass correctly,
@ -14,15 +13,10 @@ pub fn establish(sock_path: &str) -> PipeStream {
/// We stub them using this trait so we don't have to newtype
/// the pipestream itself (which would be extensive and un-DRY).
pub trait UnixCompatibility: Sized {
fn try_clone(&self) -> Option<Self>;
fn set_read_timeout(&self, timeout: Option<Duration>) -> io::Result<()>;
}
impl UnixCompatibility for PipeStream {
fn try_clone(&self) -> Option<Self> {
Some(unsafe { Self::from_raw_handle(self.as_raw_handle()) })
}
impl UnixCompatibility for Pipe {
fn set_read_timeout(&self, timeout: Option<Duration>) -> io::Result<()> {
// NOTE(qix-): Technically, this shouldn't work (and probably doesn't).
// NOTE(qix-): The documentation states:
@ -32,28 +26,14 @@ impl UnixCompatibility for PipeStream {
// NOTE(qix-):
// NOTE(qix-): This is indeed the case here, but we try to make it work
// NOTE(qix-): anyway.
#[allow(unused_assignments)]
let mut timeout_ms: winapi::shared::minwindef::DWORD = 0;
let timeout_ptr: winapi::shared::minwindef::LPDWORD = if let Some(timeout) = timeout {
timeout_ms = timeout.as_millis() as winapi::shared::minwindef::DWORD;
&mut timeout_ms as *mut _
} else {
std::ptr::null_mut()
};
let timeout_ms: Option<*const u32> =
timeout.map(|timeout| timeout.as_millis() as *const u32);
let r = unsafe {
winapi::um::namedpipeapi::SetNamedPipeHandleState(
self.as_raw_handle() as winapi::um::winnt::HANDLE,
std::ptr::null_mut(),
std::ptr::null_mut(),
timeout_ptr,
)
};
let r = unsafe { SetNamedPipeHandleState(self.get_handle(), None, None, timeout_ms) };
if r == 0 {
Err(io::Error::last_os_error())
} else {
Ok(())
match r {
Ok(_) => Ok(()),
Err(err) => Err(io::Error::from_raw_os_error(err.code().0)),
}
}
}

View File

@ -128,3 +128,51 @@ unsafe impl super::GitExecutor for TokioExecutor {
}
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::executor::AskpassServer;
use crate::executor::GitExecutor;
use crate::executor::Socket;
use assert_cmd::Command;
use std::time::Duration;
// cargo test --package gitbutler-git --lib test_askpass
#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
async fn test_askpass() {
let secret = "super-secret-secret";
let executor = TokioExecutor;
#[allow(unsafe_code)]
let sock_server: TokioAskpassServer = unsafe { executor.create_askpass_server() }
.await
.expect("create_askpass_server():");
let sock_server_string = sock_server.to_string();
let handle = tokio::spawn(async move {
let mut cmd = Command::cargo_bin("gitbutler-git-askpass").unwrap();
let assert = cmd
.env("GITBUTLER_ASKPASS_PIPE", sock_server_string)
.env("GITBUTLER_ASKPASS_SECRET", secret)
.arg("Please enter your password:")
.assert();
assert.success().stdout("super_secret_password\n");
});
let mut sock = sock_server
.accept(Some(Duration::from_secs(10)))
.await
.expect("accept():");
let peer_secret = sock.read_line().await.expect("read_line() peer_secret:");
assert_eq!(peer_secret, secret);
let prompt = sock.read_line().await.expect("read_line() prompt:");
assert_eq!(prompt.trim(), "Please enter your password:");
sock.write_line("super_secret_password")
.await
.expect("write_line() password:");
handle.await.expect("Askpass command failed");
}
}

View File

@ -10,30 +10,25 @@ use tokio::{
net::windows::named_pipe::{NamedPipeServer, ServerOptions},
sync::Mutex,
};
use windows::Win32::{Foundation::HANDLE, System::Pipes::GetNamedPipeClientProcessId};
const ASKPASS_PIPE_PREFIX: &str = r"\\.\pipe\gitbutler-askpass-";
// Slashes instead of backslashes to prevent any issues with escaping.
const ASKPASS_PIPE_PREFIX: &str = r"//./pipe/gitbutler-askpass-";
impl Socket for BufStream<NamedPipeServer> {
type Error = std::io::Error;
fn pid(&self) -> Result<Pid, Self::Error> {
let raw_handle = self.get_ref().as_raw_handle();
let mut out_pid: winapi::shared::minwindef::ULONG = 0;
let handle: HANDLE = HANDLE(raw_handle as isize);
let mut out_pid: u32 = 0;
#[allow(unsafe_code)]
let r = unsafe {
winapi::um::winbase::GetNamedPipeClientProcessId(
// We need the `as` here to make rustdoc shut up
// about winapi using different type defs for docs.
raw_handle as winapi::um::winnt::HANDLE,
&mut out_pid,
)
};
let r = unsafe { GetNamedPipeClientProcessId(handle, &mut out_pid) };
if r == 0 {
Err(std::io::Error::last_os_error())
} else {
Ok(Pid::from(out_pid))
match r {
Err(err) => Err(std::io::Error::from_raw_os_error(err.code().0)),
Ok(_) => Ok(Pid::from(out_pid)),
}
}
@ -64,6 +59,7 @@ impl TokioAskpassServer {
let server = Mutex::new(RefCell::new(
ServerOptions::new()
.first_pipe_instance(true)
.max_instances(2)
.create(&connection_string)?,
));