From e0cce8fba8dcefa8745a4ba768f911c09d9d7573 Mon Sep 17 00:00:00 2001
From: Nick Mathewson <nickm@torproject.org>
Date: Wed, 13 Oct 2004 20:05:57 +0000
Subject: [PATCH] Unify tests for "did I originate this nonopen OR connection?"

svn:r2468
---
 src/or/connection.c    |  8 +-------
 src/or/connection_or.c | 17 ++++++++++++-----
 src/or/or.h            |  1 +
 3 files changed, 14 insertions(+), 12 deletions(-)

diff --git a/src/or/connection.c b/src/or/connection.c
index 5f5313788f..53ab7b0833 100644
--- a/src/or/connection.c
+++ b/src/or/connection.c
@@ -192,13 +192,7 @@ void connection_about_to_close_connection(connection_t *conn)
     case CONN_TYPE_OR:
       /* Remember why we're closing this connection. */
       if (conn->state != OR_CONN_STATE_OPEN) {
-        /* XXX Nick: this still isn't right, because it might be
-         * dying even though we didn't initiate the connect. Can
-         * you look at this more? -RD XXXX008 -NM*/
-        /* XXX We only set conn->nickname when we initiate the connection, or
-         * when the handshake is complete; so conn->nickname is a good test
-         * for "we initiated the connection", right? -NM */
-        if(conn->nickname)
+        if(connection_or_nonopen_was_started_here(conn))
           rep_hist_note_connect_failed(conn->identity_digest, time(NULL));
       } else if (0) { // XXX reason == CLOSE_REASON_UNUSED_OR_CONN) {
         rep_hist_note_disconnect(conn->identity_digest, time(NULL));
diff --git a/src/or/connection_or.c b/src/or/connection_or.c
index acff78b188..ccbb3f54cb 100644
--- a/src/or/connection_or.c
+++ b/src/or/connection_or.c
@@ -300,10 +300,17 @@ int connection_tls_continue_handshake(connection_t *conn) {
   return 0;
 }
 
-static int digest_is_zero(const char *id) {
-  char ZERO_DIGEST[DIGEST_LEN];
-  memset(ZERO_DIGEST, 0, DIGEST_LEN);
-  return !memcmp(ZERO_DIGEST, id, DIGEST_LEN);
+static char ZERO_DIGEST[] = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 };
+
+int connection_or_nonopen_was_started_here(connection_t *conn)
+{
+  tor_assert(sizeof(ZERO_DIGEST) == DIGEST_LEN);
+  tor_assert(conn->type == CONN_TYPE_OR);
+
+  if (!memcmp(ZERO_DIGEST, conn->identity_digest, DIGEST_LEN))
+    return 0;
+  else
+    return 1;
 }
 
 /** The tls handshake is finished.
@@ -371,7 +378,7 @@ connection_tls_finish_handshake(connection_t *conn) {
     return -1;
   }
 
-  if (!digest_is_zero(conn->identity_digest)) {
+  if (connection_or_nonopen_was_started_here(conn)) {
     /* I initiated this connection. */
     if (strcasecmp(conn->nickname, nickname)) {
       log_fn(options.DirPort ? LOG_WARN : LOG_INFO,
diff --git a/src/or/or.h b/src/or/or.h
index 0c614d86a1..db128a09a1 100644
--- a/src/or/or.h
+++ b/src/or/or.h
@@ -1110,6 +1110,7 @@ int connection_state_is_connecting(connection_t *conn);
 int connection_send_destroy(uint16_t circ_id, connection_t *conn);
 
 void assert_connection_ok(connection_t *conn, time_t now);
+int connection_or_nonopen_was_started_here(connection_t *conn);
 
 /********************************* connection_edge.c ***************************/