chore(sys): bump tinydtls to 9d6cf54, update bindgen, bump crate version

bindgen 0.59.X depended on a crate with a cargo audit warning, updating
it to fix that.

Also made some minor changes to build script and tests to accomodate for
bindgen and tinydtls changes.

Author: pulsastrix

Cargo.toml

@@ -4,3 +4,4 @@
 members = [
     "tinydtls-sys",
 ]
+resolver = "2"

tinydtls-sys/Cargo.toml

@@ -4,7 +4,7 @@
 [package]
 name = "tinydtls-sys"
 description = "Raw bindings to the TinyDTLS library."
-version = "0.1.2+tinydtls-c84e36f"
+version = "0.2.0+tinydtls-9d6cf54"
 edition = "2021"
 links = "tinydtls"
 # For tinydtls, both licenses can be applied, see https://www.eclipse.org/legal/eplfaq.php#DUALLIC
@@ -18,6 +18,7 @@ authors = ["Hugo Hakim Damer <[email protected]>"]
 categories = ["external-ffi-bindings", "network-programming", "cryptography", "embedded"]
 keywords = ["tinydtls", "sys", "dtls", "crypto"]
 exclude = ['/src/tinydtls/share/', '/src/tinydtls/include/', '/src/tinydtls/configure.prev']
+resolver = "2"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 [features]
@@ -39,6 +40,6 @@ libc = "^0.2.112"
 lazy_static = "^1.4"
 
 [build-dependencies]
-bindgen = "^0.59.2"
+bindgen = "^0.69.4"
 autotools = "^0.2.3"
 fs_extra = "^1.2"

tinydtls-sys/build.rs

@@ -113,7 +113,7 @@ fn main() {
     bindgen_builder = bindgen_builder
         .header("src/wrapper.h")
         .default_enum_style(EnumVariation::Rust { non_exhaustive: true })
-        .rustfmt_bindings(false)
+        .formatter(bindgen::Formatter::None)
         // Some types cannot have `Debug` as they are packed and have non-Copy fields.
         .no_debug("dtls_hello_verify_t")
         // Declarations that should be part of the bindings.
@@ -158,7 +158,7 @@ fn main() {
         // the included headers seem to come from our built version.
         // Should be fine though, as we already printed `cargo:rerun-if-changed=src/tinydtls/` at the
         // start of the file.
-        bindgen_builder = bindgen_builder.parse_callbacks(Box::new(bindgen::CargoCallbacks));
+        bindgen_builder = bindgen_builder.parse_callbacks(Box::new(bindgen::CargoCallbacks::new()));
     }
 
     // Run binding generation and write the output to a file.

tinydtls-sys/src/lib.rs

@@ -402,6 +402,7 @@ mod tests {
             get_psk_info: Some(echo_get_psk_info),
             get_ecdsa_key: None,
             verify_ecdsa_key: None,
+            get_user_parameters: None,
         };
 
         // SAFETY: Supplied pointer is valid, dtls_new_context does not do anything with it except
@@ -433,8 +434,6 @@ mod tests {
         // this pointer should be valid up until here.
         unsafe {
             dtls_free_context(server_context);
-            // To ensure that we don't use the context pointer sometime later (in case the tests are extended later on), we drop the pointer.
-            std::mem::drop(server_context);
         }
     }
 
@@ -463,6 +462,7 @@ mod tests {
             get_psk_info: Some(echo_get_psk_info),
             get_ecdsa_key: None,
             verify_ecdsa_key: None,
+            get_user_parameters: None,
         };
 
         let client_socket = UdpSocket::bind("localhost:0").expect("Could not bind UDP socket");
@@ -512,8 +512,6 @@ mod tests {
         // this pointer should be valid up until here.
         unsafe {
             dtls_free_context(client_context);
-            // To ensure that we don't use the context pointer sometime later (in case the tests are extended later on), we drop the pointer.
-            std::mem::drop(client_context);
         }
         server_thread.join().unwrap();
     }