1 files changed, 29 insertions, 0 deletions
diff --git a/vendor/hkdf/src/errors.rs b/vendor/hkdf/src/errors.rs
new file mode 100644
index 000000000..e2109b473
--- /dev/null
+++ b/vendor/hkdf/src/errors.rs
@@ -0,0 +1,29 @@
+use core::fmt;
+
+/// Error that is returned when supplied pseudorandom key (PRK) is not long enough.
+#[derive(Copy, Clone, Debug)]
+pub struct InvalidPrkLength;
+
+impl fmt::Display for InvalidPrkLength {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
+        f.write_str("invalid pseudorandom key length, too short")
+    }
+}
+
+#[cfg(feature = "std")]
+#[cfg_attr(docsrs, doc(cfg(feature = "std")))]
+impl ::std::error::Error for InvalidPrkLength {}
+
+/// Structure for InvalidLength, used for output error handling.
+#[derive(Copy, Clone, Debug)]
+pub struct InvalidLength;
+
+impl fmt::Display for InvalidLength {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
+        f.write_str("invalid number of blocks, too large output")
+    }
+}
+
+#[cfg(feature = "std")]
+#[cfg_attr(docsrs, doc(cfg(feature = "std")))]
+impl ::std::error::Error for InvalidLength {}