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[tor-commits] [tor/release-0.3.4] Remove extraneous argument from Rust protover_compute_vote()



commit 80ad15921cef42ac12da356584f217d2ead5cb09
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date:   Mon Sep 17 11:50:46 2018 -0400

    Remove extraneous argument from Rust protover_compute_vote()
    
    This argument was added to match an older idea for the C api, but we
    decided not to do it that way in C.
    
    Fixes bug 27741; bugfix on 0.3.3.6 / TROVE-2018-005 fix.
---
 changes/bug27741         |  5 +++++
 src/rust/protover/ffi.rs | 13 ++++---------
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/changes/bug27741 b/changes/bug27741
new file mode 100644
index 000000000..531e264b6
--- /dev/null
+++ b/changes/bug27741
@@ -0,0 +1,5 @@
+  o Minor bugfixes (rust, directory authority):
+    - Fix an API mismatch in the rust implementation of
+      protover_compute_vote(). This bug could have caused crashes on any
+      directory authorities running Tor with Rust (which we do not yet
+      recommend). Fixes bug 27741; bugfix on 0.3.3.6.
diff --git a/src/rust/protover/ffi.rs b/src/rust/protover/ffi.rs
index 9656e8c31..f803bd015 100644
--- a/src/rust/protover/ffi.rs
+++ b/src/rust/protover/ffi.rs
@@ -207,8 +207,7 @@ pub extern "C" fn protover_get_supported_protocols() -> *const c_char {
 #[no_mangle]
 pub extern "C" fn protover_compute_vote(
     list: *const Stringlist,
-    threshold: c_int,
-    allow_long_proto_names: bool,
+    threshold: c_int
 ) -> *mut c_char {
 
     if list.is_null() {
@@ -223,13 +222,9 @@ pub extern "C" fn protover_compute_vote(
     let mut proto_entries: Vec<UnvalidatedProtoEntry> = Vec::new();
 
     for datum in data {
-        let entry: UnvalidatedProtoEntry = match allow_long_proto_names {
-            true => match UnvalidatedProtoEntry::from_str_any_len(datum.as_str()) {
-                Ok(n)  => n,
-                Err(_) => continue},
-            false => match datum.parse() {
-                Ok(n)  => n,
-                Err(_) => continue},
+        let entry: UnvalidatedProtoEntry = match datum.parse() {
+            Ok(n)  => n,
+            Err(_) => continue
         };
         proto_entries.push(entry);
     }



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