From 9c49947163815cb5abb9f94a520e0323719ca0c5 Mon Sep 17 00:00:00 2001
From: Nick Mathewson <nickm@torproject.org>
Date: Wed, 13 Oct 2004 01:13:37 +0000
Subject: [PATCH] Check fingerprint list before generating running-routers
 lists; also add as-yet-uncalled function to update an OR connection nickname
 on the fly

svn:r2458
---
 src/or/connection_or.c | 31 +++++++++++++++++++++++++++++++
 src/or/dirserv.c       |  7 ++++---
 src/or/or.h            |  2 ++
 3 files changed, 37 insertions(+), 3 deletions(-)

diff --git a/src/or/connection_or.c b/src/or/connection_or.c
index fea307a3c4..acff78b188 100644
--- a/src/or/connection_or.c
+++ b/src/or/connection_or.c
@@ -146,6 +146,37 @@ connection_or_init_conn_from_address(connection_t *conn,
   conn->address = tor_strdup(inet_ntoa(in));
 }
 
+void
+connection_or_update_nickname(connection_t *conn)
+{
+  routerinfo_t *r;
+  const char *n;
+
+  tor_assert(conn->type == CONN_TYPE_OR);
+  n = dirserv_get_nickname_by_digest(conn->identity_digest);
+  if (n) {
+    if (!conn->nickname || strcmp(conn->nickname, n)) {
+      tor_free(conn->nickname);
+      conn->nickname = tor_strdup(n);
+    }
+    return;
+  }
+  r = router_get_by_digest(conn->identity_digest);
+  if (r && r->is_verified) {
+    if (!conn->nickname || strcmp(conn->nickname, r->nickname)) {
+      tor_free(conn->nickname);
+      conn->nickname = tor_strdup(r->nickname);
+    }
+    return;
+  }
+  if (conn->nickname[0] != '$') {
+    tor_free(conn->nickname);
+    conn->nickname = tor_malloc(HEX_DIGEST_LEN+1);
+    base16_encode(conn->nickname, HEX_DIGEST_LEN+1,
+                  conn->identity_digest, DIGEST_LEN);
+  }
+}
+
 /** Launch a new OR connection to <b>addr</b>:<b>port</b> and expect to
  * handshake with an OR with identity digest <b>id_digest</b>.
  *
diff --git a/src/or/dirserv.c b/src/or/dirserv.c
index 7b34d645a4..5f0e1d0842 100644
--- a/src/or/dirserv.c
+++ b/src/or/dirserv.c
@@ -474,12 +474,13 @@ list_running_servers(char **nicknames_out)
 
   get_connection_array(&connection_array, &n_conns);
   for (i = 0; i<n_conns; ++i) {
-    char *name;
+    char *name, *cp;
     conn = connection_array[i];
     if (conn->type != CONN_TYPE_OR || !conn->nickname)
       continue; /* only list ORs. */
-    if (router_nickname_is_approved(conn->nickname, conn->identity_digest)) {
-      name = tor_strdup(conn->nickname);
+    cp = dirserv_get_nickname_by_digest(conn->identity_digest);
+    if (cp) {
+      name = tor_strdup(cp);
     } else {
       name = tor_malloc(HEX_DIGEST_LEN+2);
       *name = '$';
diff --git a/src/or/or.h b/src/or/or.h
index b8a72ae2b0..a15ab6126e 100644
--- a/src/or/or.h
+++ b/src/or/or.h
@@ -1160,6 +1160,8 @@ int connection_tls_start_handshake(connection_t *conn, int receiving);
 int connection_tls_continue_handshake(connection_t *conn);
 
 void connection_or_write_cell_to_buf(const cell_t *cell, connection_t *conn);
+void connection_or_update_nickname(connection_t *conn);
+
 
 /********************************* cpuworker.c *****************************/