Add more backward-compatibility aliases.

Cargo.toml

@@ -42,6 +42,7 @@ include = [
     "src/signed_data.rs",
     "src/time.rs",
     "src/trust_anchor.rs",
+    "src/trust_anchor_util.rs",
     "src/verify_cert.rs",
     "src/lib.rs",
 

src/lib.rs

@@ -42,6 +42,7 @@ mod name;
 mod signed_data;
 mod time;
 mod trust_anchor;
+pub mod trust_anchor_util;
 
 mod verify_cert;
 
@@ -76,6 +77,10 @@ pub type DNSName = DnsName;
 #[allow(missing_docs, unknown_lints, clippy::upper_case_acronyms)]
 pub type DNSNameRef<'a> = DnsNameRef<'a>;
 
+#[deprecated(note = "use InvalidDnsNameError")]
+#[allow(missing_docs, unknown_lints, clippy::upper_case_acronyms)]
+pub type InvalidDNSNameError = InvalidDnsNameError;
+
 #[deprecated(note = "use TlsServerTrustAnchors")]
 #[allow(missing_docs, unknown_lints, clippy::upper_case_acronyms)]
 pub type TLSServerTrustAnchors<'a> = TlsServerTrustAnchors<'a>;

src/trust_anchor_util.rs

@@ -0,0 +1,23 @@
+// Copyright 2015-2021 Brian Smith.
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+//! Deprecated. Use `TrustAnchor`.
+
+use crate::{Error, TrustAnchor};
+
+/// Deprecated. Use TrustAnchor::try_from_cert_der.
+#[deprecated(note = "Use TrustAnchor::try_from_cert_der")]
+pub fn cert_der_as_trust_anchor(cert_der: &[u8]) -> Result<TrustAnchor, Error> {
+    TrustAnchor::try_from_cert_der(cert_der)
+}