diff options
Diffstat (limited to 'vendor/errno')
| -rw-r--r-- | vendor/errno/.cargo-checksum.json | 1 | ||||
| -rw-r--r-- | vendor/errno/CHANGELOG.md | 96 | ||||
| -rw-r--r-- | vendor/errno/Cargo.toml | 49 | ||||
| -rw-r--r-- | vendor/errno/LICENSE-APACHE | 201 | ||||
| -rw-r--r-- | vendor/errno/LICENSE-MIT | 25 | ||||
| -rw-r--r-- | vendor/errno/README.md | 62 | ||||
| -rw-r--r-- | vendor/errno/clippy.toml | 1 | ||||
| -rw-r--r-- | vendor/errno/src/hermit.rs | 32 | ||||
| -rw-r--r-- | vendor/errno/src/lib.rs | 156 | ||||
| -rw-r--r-- | vendor/errno/src/unix.rs | 101 | ||||
| -rw-r--r-- | vendor/errno/src/wasi.rs | 60 | ||||
| -rw-r--r-- | vendor/errno/src/windows.rs | 81 |
12 files changed, 0 insertions, 865 deletions
diff --git a/vendor/errno/.cargo-checksum.json b/vendor/errno/.cargo-checksum.json deleted file mode 100644 index 8e3161f..0000000 --- a/vendor/errno/.cargo-checksum.json +++ /dev/null @@ -1 +0,0 @@ -{"files":{"CHANGELOG.md":"b640a4e74c65505290775558e36ede1968ed26a551edaf7574f661891920ff48","Cargo.toml":"329c6992879c5c2ac32dd09263f4d9cad0da477ac9c44e50e6ae503fd9616467","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"8764a597675778ddfd4e25f81b08a05dbcf089ac05662df7613fe67f150e3aa2","README.md":"a1817eb8a0b2208d3f3989202b6af03c8261747b281039d4c7790649b587fd0b","clippy.toml":"6409bb805741d8bedfb1e58eb0ce4b63bd1d384ad5e29b7a3c0997a872f31206","src/hermit.rs":"ad03355bc4d79c180ab3210e1d3edd538eccaaea8d4f9a9b7eb8a0dc2d39b5df","src/lib.rs":"318f864b8cb9296c85f70f9dfb855c552303630b3a9390f147bb4b581b8d8b5c","src/unix.rs":"6ee5c13893fa1114fa1782239f2539f1b0a9554e5ed45cf0ee78729145882032","src/wasi.rs":"c83052e5c45c31e2a4630c00a4d0b92f39205774a4d419b4aa5c06dc5992280c","src/windows.rs":"7cbcdb8e74582f357fa945bb1c44c4d19c1a10bec958da1223305bf68ec35baf"},"package":"a258e46cdc063eb8519c00b9fc845fc47bcfca4130e2f08e88665ceda8474245"}
\ No newline at end of file diff --git a/vendor/errno/CHANGELOG.md b/vendor/errno/CHANGELOG.md deleted file mode 100644 index e3add31..0000000 --- a/vendor/errno/CHANGELOG.md +++ /dev/null @@ -1,96 +0,0 @@ -# [Unreleased] - -# [0.3.8] - 2023-11-27 - -- Update to windows-sys 0.52. - [#91](https://github.com/lambda-fairy/rust-errno/pull/91) - -- Update minimum Rust version to 1.56 - [#91](https://github.com/lambda-fairy/rust-errno/pull/91) - -# [0.3.7] - 2023-11-15 - -- Fix `to_string()` handling for unknown error codes - [#88](https://github.com/lambda-fairy/rust-errno/pull/88) - -# [0.3.6] - 2023-11-07 - -- Add support for tvOS and watchOS - [#84](https://github.com/lambda-fairy/rust-errno/pull/84) - -- Added support for vita target - [#86](https://github.com/lambda-fairy/rust-errno/pull/86) - -# [0.3.5] - 2023-10-08 - -- Use __errno_location on DragonFly BSD - [#82](https://github.com/lambda-fairy/rust-errno/pull/82) - -# [0.3.4] - 2023-10-01 - -- Add GNU/Hurd support - [#80](https://github.com/lambda-fairy/rust-errno/pull/80) - -# [0.3.3] - 2023-08-28 - -- Disable "libc/std" in no-std configurations. - [#77](https://github.com/lambda-fairy/rust-errno/pull/77) - -- Bump errno-dragonfly to 0.1.2 - [#75](https://github.com/lambda-fairy/rust-errno/pull/75) - -- Support for the ESP-IDF framework - [#74](https://github.com/lambda-fairy/rust-errno/pull/74) - -# [0.3.2] - 2023-07-30 - -- Fix build on Hermit - [#73](https://github.com/lambda-fairy/rust-errno/pull/73) - -- Add support for QNX Neutrino - [#72](https://github.com/lambda-fairy/rust-errno/pull/72) - -# [0.3.1] - 2023-04-08 - -- Correct link name on redox - [#69](https://github.com/lambda-fairy/rust-errno/pull/69) - -- Update windows-sys requirement from 0.45 to 0.48 - [#70](https://github.com/lambda-fairy/rust-errno/pull/70) - -# [0.3.0] - 2023-02-12 - -- Add haiku support - [#42](https://github.com/lambda-fairy/rust-errno/pull/42) - -- Add AIX support - [#54](https://github.com/lambda-fairy/rust-errno/pull/54) - -- Add formatting with `#![no_std]` - [#44](https://github.com/lambda-fairy/rust-errno/pull/44) - -- Switch from `winapi` to `windows-sys` [#55](https://github.com/lambda-fairy/rust-errno/pull/55) - -- Update minimum Rust version to 1.48 - [#48](https://github.com/lambda-fairy/rust-errno/pull/48) [#55](https://github.com/lambda-fairy/rust-errno/pull/55) - -- Upgrade to Rust 2018 edition [#59](https://github.com/lambda-fairy/rust-errno/pull/59) - -- wasm32-wasi: Use `__errno_location` instead of `feature(thread_local)`. [#66](https://github.com/lambda-fairy/rust-errno/pull/66) - -# [0.2.8] - 2021-10-27 - -- Optionally support no_std - [#31](https://github.com/lambda-fairy/rust-errno/pull/31) - -[Unreleased]: https://github.com/lambda-fairy/rust-errno/compare/v0.3.8...HEAD -[0.3.8]: https://github.com/lambda-fairy/rust-errno/compare/v0.3.7...v0.3.8 -[0.3.7]: https://github.com/lambda-fairy/rust-errno/compare/v0.3.6...v0.3.7 -[0.3.6]: https://github.com/lambda-fairy/rust-errno/compare/v0.3.5...v0.3.6 -[0.3.5]: https://github.com/lambda-fairy/rust-errno/compare/v0.3.4...v0.3.5 -[0.3.4]: https://github.com/lambda-fairy/rust-errno/compare/v0.3.3...v0.3.4 -[0.3.3]: https://github.com/lambda-fairy/rust-errno/compare/v0.3.2...v0.3.3 -[0.3.2]: https://github.com/lambda-fairy/rust-errno/compare/v0.3.1...v0.3.2 -[0.3.1]: https://github.com/lambda-fairy/rust-errno/compare/v0.3.0...v0.3.1 -[0.3.0]: https://github.com/lambda-fairy/rust-errno/compare/v0.2.8...v0.3.0 -[0.2.8]: https://github.com/lambda-fairy/rust-errno/compare/v0.2.7...v0.2.8 diff --git a/vendor/errno/Cargo.toml b/vendor/errno/Cargo.toml deleted file mode 100644 index e1d0bf5..0000000 --- a/vendor/errno/Cargo.toml +++ /dev/null @@ -1,49 +0,0 @@ -# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO -# -# When uploading crates to the registry Cargo will automatically -# "normalize" Cargo.toml files for maximal compatibility -# with all versions of Cargo and also rewrite `path` dependencies -# to registry (e.g., crates.io) dependencies. -# -# If you are reading this file be aware that the original Cargo.toml -# will likely look very different (and much more reasonable). -# See Cargo.toml.orig for the original contents. - -[package] -edition = "2018" -rust-version = "1.56" -name = "errno" -version = "0.3.8" -authors = ["Chris Wong <lambda.fairy@gmail.com>"] -description = "Cross-platform interface to the `errno` variable." -documentation = "https://docs.rs/errno" -readme = "README.md" -categories = [ - "no-std", - "os", -] -license = "MIT OR Apache-2.0" -repository = "https://github.com/lambda-fairy/rust-errno" - -[features] -default = ["std"] -std = ["libc/std"] - -[target."cfg(target_os=\"hermit\")".dependencies.libc] -version = "0.2" -default-features = false - -[target."cfg(target_os=\"wasi\")".dependencies.libc] -version = "0.2" -default-features = false - -[target."cfg(unix)".dependencies.libc] -version = "0.2" -default-features = false - -[target."cfg(windows)".dependencies.windows-sys] -version = "0.52" -features = [ - "Win32_Foundation", - "Win32_System_Diagnostics_Debug", -] diff --git a/vendor/errno/LICENSE-APACHE b/vendor/errno/LICENSE-APACHE deleted file mode 100644 index 16fe87b..0000000 --- a/vendor/errno/LICENSE-APACHE +++ /dev/null @@ -1,201 +0,0 @@ - Apache License - Version 2.0, January 2004 - http://www.apache.org/licenses/ - -TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION - -1. 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We also recommend that a - file or class name and description of purpose be included on the - same "printed page" as the copyright notice for easier - identification within third-party archives. - -Copyright [yyyy] [name of copyright owner] - -Licensed 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. diff --git a/vendor/errno/LICENSE-MIT b/vendor/errno/LICENSE-MIT deleted file mode 100644 index 66b6578..0000000 --- a/vendor/errno/LICENSE-MIT +++ /dev/null @@ -1,25 +0,0 @@ -Copyright (c) 2014 Chris Wong - -Permission is hereby granted, free of charge, to any -person obtaining a copy of this software and associated -documentation files (the "Software"), to deal in the -Software without restriction, including without -limitation the rights to use, copy, modify, merge, -publish, distribute, sublicense, and/or sell copies of -the Software, and to permit persons to whom the Software -is furnished to do so, subject to the following -conditions: - -The above copyright notice and this permission notice -shall be included in all copies or substantial portions -of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF -ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED -TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A -PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT -SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY -CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION -OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR -IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER -DEALINGS IN THE SOFTWARE. diff --git a/vendor/errno/README.md b/vendor/errno/README.md deleted file mode 100644 index 6a9a42c..0000000 --- a/vendor/errno/README.md +++ /dev/null @@ -1,62 +0,0 @@ -# errno [](https://github.com/lambda-fairy/rust-errno/actions/workflows/main.yml) [](https://crates.io/crates/errno) - -Cross-platform interface to the [`errno`][errno] variable. Works on Rust 1.56 or newer. - -Documentation is available at <https://docs.rs/errno>. - -[errno]: https://en.wikipedia.org/wiki/Errno.h - - -## Dependency - -Add to your `Cargo.toml`: - -```toml -[dependencies] -errno = "*" -``` - - -## Comparison with `std::io::Error` - -The standard library provides [`Error::last_os_error`][last_os_error] which fetches `errno` in the same way. - -This crate provides these extra features: - -- No heap allocations -- Optional `#![no_std]` support -- A `set_errno` function - -[last_os_error]: https://doc.rust-lang.org/std/io/struct.Error.html#method.last_os_error - - -## Examples - -```rust -extern crate errno; -use errno::{Errno, errno, set_errno}; - -// Get the current value of errno -let e = errno(); - -// Set the current value of errno -set_errno(e); - -// Extract the error code as an i32 -let code = e.0; - -// Display a human-friendly error message -println!("Error {}: {}", code, e); -``` - - -## `#![no_std]` - -Enable `#![no_std]` support by disabling the default `std` feature: - -```toml -[dependencies] -errno = { version = "*", default-features = false } -``` - -The `Error` impl will be unavailable. diff --git a/vendor/errno/clippy.toml b/vendor/errno/clippy.toml deleted file mode 100644 index 62ca742..0000000 --- a/vendor/errno/clippy.toml +++ /dev/null @@ -1 +0,0 @@ -msrv = "1.56" diff --git a/vendor/errno/src/hermit.rs b/vendor/errno/src/hermit.rs deleted file mode 100644 index 331b6b1..0000000 --- a/vendor/errno/src/hermit.rs +++ /dev/null @@ -1,32 +0,0 @@ -//! Implementation of `errno` functionality for RustyHermit. -//! -//! Currently, the error handling in RustyHermit isn't clearly -//! defined. At the current stage of RustyHermit, only a placeholder -//! is provided to be compatible to the classical errno interface. - -// Copyright 2015 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. - -use crate::Errno; - -pub fn with_description<F, T>(_err: Errno, callback: F) -> T -where - F: FnOnce(Result<&str, Errno>) -> T, -{ - callback(Ok("unknown error")) -} - -pub const STRERROR_NAME: &str = "strerror_r"; - -pub fn errno() -> Errno { - Errno(0) -} - -pub fn set_errno(_: Errno) {} diff --git a/vendor/errno/src/lib.rs b/vendor/errno/src/lib.rs deleted file mode 100644 index 20875b5..0000000 --- a/vendor/errno/src/lib.rs +++ /dev/null @@ -1,156 +0,0 @@ -//! Cross-platform interface to the `errno` variable. -//! -//! # Examples -//! ``` -//! use errno::{Errno, errno, set_errno}; -//! -//! // Get the current value of errno -//! let e = errno(); -//! -//! // Set the current value of errno -//! set_errno(e); -//! -//! // Extract the error code as an i32 -//! let code = e.0; -//! -//! // Display a human-friendly error message -//! println!("Error {}: {}", code, e); -//! ``` - -#![cfg_attr(not(feature = "std"), no_std)] - -#[cfg_attr(unix, path = "unix.rs")] -#[cfg_attr(windows, path = "windows.rs")] -#[cfg_attr(target_os = "wasi", path = "wasi.rs")] -#[cfg_attr(target_os = "hermit", path = "hermit.rs")] -mod sys; - -use core::fmt; -#[cfg(feature = "std")] -use std::error::Error; -#[cfg(feature = "std")] -use std::io; - -/// Wraps a platform-specific error code. -/// -/// The `Display` instance maps the code to a human-readable string. It -/// calls [`strerror_r`][1] under POSIX, and [`FormatMessageW`][2] on -/// Windows. -/// -/// [1]: http://pubs.opengroup.org/onlinepubs/009695399/functions/strerror.html -/// [2]: https://msdn.microsoft.com/en-us/library/windows/desktop/ms679351%28v=vs.85%29.aspx -#[derive(Copy, Clone, Eq, Ord, PartialEq, PartialOrd, Hash)] -pub struct Errno(pub i32); - -impl fmt::Debug for Errno { - fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { - sys::with_description(*self, |desc| { - fmt.debug_struct("Errno") - .field("code", &self.0) - .field("description", &desc.ok()) - .finish() - }) - } -} - -impl fmt::Display for Errno { - fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { - sys::with_description(*self, |desc| match desc { - Ok(desc) => fmt.write_str(desc), - Err(fm_err) => write!( - fmt, - "OS error {} ({} returned error {})", - self.0, - sys::STRERROR_NAME, - fm_err.0 - ), - }) - } -} - -impl From<Errno> for i32 { - fn from(e: Errno) -> Self { - e.0 - } -} - -#[cfg(feature = "std")] -impl Error for Errno { - // TODO: Remove when MSRV >= 1.27 - #[allow(deprecated)] - fn description(&self) -> &str { - "system error" - } -} - -#[cfg(feature = "std")] -impl From<Errno> for io::Error { - fn from(errno: Errno) -> Self { - io::Error::from_raw_os_error(errno.0) - } -} - -/// Returns the platform-specific value of `errno`. -pub fn errno() -> Errno { - sys::errno() -} - -/// Sets the platform-specific value of `errno`. -pub fn set_errno(err: Errno) { - sys::set_errno(err) -} - -#[test] -fn it_works() { - let x = errno(); - set_errno(x); -} - -#[cfg(feature = "std")] -#[test] -fn it_works_with_to_string() { - let x = errno(); - let _ = x.to_string(); -} - -#[cfg(feature = "std")] -#[test] -fn check_description() { - let expect = if cfg!(windows) { - "Incorrect function." - } else if cfg!(target_os = "illumos") { - "Not owner" - } else if cfg!(target_os = "wasi") { - "Argument list too long" - } else if cfg!(target_os = "haiku") { - "Operation not allowed" - } else { - "Operation not permitted" - }; - - let errno_code = if cfg!(target_os = "haiku") { - -2147483633 - } else { - 1 - }; - set_errno(Errno(errno_code)); - - assert_eq!(errno().to_string(), expect); - assert_eq!( - format!("{:?}", errno()), - format!( - "Errno {{ code: {}, description: Some({:?}) }}", - errno_code, expect - ) - ); -} - -#[cfg(feature = "std")] -#[test] -fn check_error_into_errno() { - const ERROR_CODE: i32 = 1; - - let error = io::Error::from_raw_os_error(ERROR_CODE); - let new_error: io::Error = Errno(ERROR_CODE).into(); - assert_eq!(error.kind(), new_error.kind()); -} diff --git a/vendor/errno/src/unix.rs b/vendor/errno/src/unix.rs deleted file mode 100644 index 18951e4..0000000 --- a/vendor/errno/src/unix.rs +++ /dev/null @@ -1,101 +0,0 @@ -//! Implementation of `errno` functionality for Unix systems. -//! -//! Adapted from `src/libstd/sys/unix/os.rs` in the Rust distribution. - -// Copyright 2015 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. - -use core::str; -use libc::{self, c_int, size_t, strerror_r, strlen}; - -use crate::Errno; - -fn from_utf8_lossy(input: &[u8]) -> &str { - match str::from_utf8(input) { - Ok(valid) => valid, - Err(error) => unsafe { str::from_utf8_unchecked(&input[..error.valid_up_to()]) }, - } -} - -pub fn with_description<F, T>(err: Errno, callback: F) -> T -where - F: FnOnce(Result<&str, Errno>) -> T, -{ - let mut buf = [0u8; 1024]; - let c_str = unsafe { - let rc = strerror_r(err.0, buf.as_mut_ptr() as *mut _, buf.len() as size_t); - if rc != 0 { - // Handle negative return codes for compatibility with glibc < 2.13 - let fm_err = match rc < 0 { - true => errno(), - false => Errno(rc), - }; - if fm_err != Errno(libc::ERANGE) { - return callback(Err(fm_err)); - } - } - let c_str_len = strlen(buf.as_ptr() as *const _); - &buf[..c_str_len] - }; - callback(Ok(from_utf8_lossy(c_str))) -} - -pub const STRERROR_NAME: &str = "strerror_r"; - -pub fn errno() -> Errno { - unsafe { Errno(*errno_location()) } -} - -pub fn set_errno(Errno(errno): Errno) { - unsafe { - *errno_location() = errno; - } -} - -extern "C" { - #[cfg_attr( - any( - target_os = "macos", - target_os = "ios", - target_os = "tvos", - target_os = "watchos", - target_os = "freebsd" - ), - link_name = "__error" - )] - #[cfg_attr( - any( - target_os = "openbsd", - target_os = "netbsd", - target_os = "bitrig", - target_os = "android", - target_os = "espidf", - target_env = "newlib" - ), - link_name = "__errno" - )] - #[cfg_attr( - any(target_os = "solaris", target_os = "illumos"), - link_name = "___errno" - )] - #[cfg_attr(target_os = "haiku", link_name = "_errnop")] - #[cfg_attr( - any( - target_os = "linux", - target_os = "hurd", - target_os = "redox", - target_os = "dragonfly" - ), - link_name = "__errno_location" - )] - #[cfg_attr(target_os = "aix", link_name = "_Errno")] - #[cfg_attr(target_os = "nto", link_name = "__get_errno_ptr")] - fn errno_location() -> *mut c_int; -} diff --git a/vendor/errno/src/wasi.rs b/vendor/errno/src/wasi.rs deleted file mode 100644 index 404d7d5..0000000 --- a/vendor/errno/src/wasi.rs +++ /dev/null @@ -1,60 +0,0 @@ -//! Implementation of `errno` functionality for WASI. -//! -//! Adapted from `unix.rs`. - -// Copyright 2015 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. - -use core::str; -use libc::{self, c_int, size_t, strerror_r, strlen}; - -use crate::Errno; - -fn from_utf8_lossy(input: &[u8]) -> &str { - match str::from_utf8(input) { - Ok(valid) => valid, - Err(error) => unsafe { str::from_utf8_unchecked(&input[..error.valid_up_to()]) }, - } -} - -pub fn with_description<F, T>(err: Errno, callback: F) -> T -where - F: FnOnce(Result<&str, Errno>) -> T, -{ - let mut buf = [0u8; 1024]; - let c_str = unsafe { - let rc = strerror_r(err.0, buf.as_mut_ptr() as *mut _, buf.len() as size_t); - if rc != 0 { - let fm_err = Errno(rc); - if fm_err != Errno(libc::ERANGE) { - return callback(Err(fm_err)); - } - } - let c_str_len = strlen(buf.as_ptr() as *const _); - &buf[..c_str_len] - }; - callback(Ok(from_utf8_lossy(c_str))) -} - -pub const STRERROR_NAME: &str = "strerror_r"; - -pub fn errno() -> Errno { - unsafe { Errno(*__errno_location()) } -} - -pub fn set_errno(Errno(new_errno): Errno) { - unsafe { - *__errno_location() = new_errno; - } -} - -extern "C" { - fn __errno_location() -> *mut c_int; -} diff --git a/vendor/errno/src/windows.rs b/vendor/errno/src/windows.rs deleted file mode 100644 index 9c7c0e4..0000000 --- a/vendor/errno/src/windows.rs +++ /dev/null @@ -1,81 +0,0 @@ -//! Implementation of `errno` functionality for Windows. -//! -//! Adapted from `src/libstd/sys/windows/os.rs` in the Rust distribution. - -// Copyright 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. - -use core::char::{self, REPLACEMENT_CHARACTER}; -use core::ptr; -use core::str; -use windows_sys::Win32::Foundation::{GetLastError, SetLastError, WIN32_ERROR}; -use windows_sys::Win32::System::Diagnostics::Debug::{ - FormatMessageW, FORMAT_MESSAGE_FROM_SYSTEM, FORMAT_MESSAGE_IGNORE_INSERTS, -}; - -use crate::Errno; - -fn from_utf16_lossy<'a>(input: &[u16], output: &'a mut [u8]) -> &'a str { - let mut output_len = 0; - for c in char::decode_utf16(input.iter().copied().take_while(|&x| x != 0)) - .map(|x| x.unwrap_or(REPLACEMENT_CHARACTER)) - { - let c_len = c.len_utf8(); - if c_len > output.len() - output_len { - break; - } - c.encode_utf8(&mut output[output_len..]); - output_len += c_len; - } - unsafe { str::from_utf8_unchecked(&output[..output_len]) } -} - -pub fn with_description<F, T>(err: Errno, callback: F) -> T -where - F: FnOnce(Result<&str, Errno>) -> T, -{ - // This value is calculated from the macro - // MAKELANGID(LANG_SYSTEM_DEFAULT, SUBLANG_SYS_DEFAULT) - let lang_id = 0x0800_u32; - - let mut buf = [0u16; 2048]; - - unsafe { - let res = FormatMessageW( - FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, - ptr::null_mut(), - err.0 as u32, - lang_id, - buf.as_mut_ptr(), - buf.len() as u32, - ptr::null_mut(), - ); - if res == 0 { - // Sometimes FormatMessageW can fail e.g. system doesn't like lang_id - let fm_err = errno(); - return callback(Err(fm_err)); - } - - let mut msg = [0u8; 2048]; - let msg = from_utf16_lossy(&buf[..res as usize], &mut msg[..]); - // Trim trailing CRLF inserted by FormatMessageW - callback(Ok(msg.trim_end())) - } -} - -pub const STRERROR_NAME: &str = "FormatMessageW"; - -pub fn errno() -> Errno { - unsafe { Errno(GetLastError() as i32) } -} - -pub fn set_errno(Errno(errno): Errno) { - unsafe { SetLastError(errno as WIN32_ERROR) } -} |