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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /third_party/rust/authenticator/src/util.rs | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/rust/authenticator/src/util.rs')
-rw-r--r-- | third_party/rust/authenticator/src/util.rs | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/third_party/rust/authenticator/src/util.rs b/third_party/rust/authenticator/src/util.rs new file mode 100644 index 0000000000..034259e85a --- /dev/null +++ b/third_party/rust/authenticator/src/util.rs @@ -0,0 +1,76 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +extern crate libc; + +use std::io; + +macro_rules! try_or { + ($val:expr, $or:expr) => { + match $val { + Ok(v) => v, + Err(e) => { + #[allow(clippy::redundant_closure_call)] + return $or(e); + } + } + }; +} + +pub trait Signed { + fn is_negative(&self) -> bool; +} + +impl Signed for i32 { + fn is_negative(&self) -> bool { + *self < 0 + } +} + +impl Signed for usize { + fn is_negative(&self) -> bool { + (*self as isize) < 0 + } +} + +#[cfg(all(target_os = "linux", not(test)))] +pub fn from_unix_result<T: Signed>(rv: T) -> io::Result<T> { + if rv.is_negative() { + let errno = unsafe { *libc::__errno_location() }; + Err(io::Error::from_raw_os_error(errno)) + } else { + Ok(rv) + } +} + +#[cfg(all(target_os = "freebsd", not(test)))] +pub fn from_unix_result<T: Signed>(rv: T) -> io::Result<T> { + if rv.is_negative() { + let errno = unsafe { *libc::__error() }; + Err(io::Error::from_raw_os_error(errno)) + } else { + Ok(rv) + } +} + +#[cfg(all(target_os = "openbsd", not(test)))] +pub fn from_unix_result<T: Signed>(rv: T) -> io::Result<T> { + if rv.is_negative() { + Err(io::Error::last_os_error()) + } else { + Ok(rv) + } +} + +pub fn io_err(msg: &str) -> io::Error { + io::Error::new(io::ErrorKind::Other, msg) +} + +#[cfg(all(test, not(feature = "crypto_dummy")))] +pub fn decode_hex(s: &str) -> Vec<u8> { + (0..s.len()) + .step_by(2) + .map(|i| u8::from_str_radix(&s[i..i + 2], 16).unwrap()) + .collect() +} |