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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /third_party/rust/authenticator/src/util.rs
parentInitial commit. (diff)
downloadfirefox-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.rs76
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()
+}