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[tor-commits] [tor/master] Log descriptions of nodes, not just nicknames.



commit b95dd03e5f6505ce2e78fe34a20bf5e5c970e6eb
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date:   Sun May 15 21:58:46 2011 -0400

    Log descriptions of nodes, not just nicknames.
    
    This patch introduces a few new functions in router.c to produce a
    more helpful description of a node than its nickame, and then tweaks
    nearly all log messages taking a nickname as an argument to call these
    functions instead.
    
    There are a few cases where I left the old log messages alone: in
    these cases, the nickname was that of an authority (whose nicknames
    are useful and unique), or the message already included an identity
    and/or an address.  I might have missed a couple more too.
    
    This is a fix for bug 3045.
---
 src/or/circuitbuild.c    |   43 +++++++++-------
 src/or/circuitlist.c     |    6 ++-
 src/or/circuituse.c      |    4 +-
 src/or/command.c         |    4 +-
 src/or/connection_edge.c |    7 ++-
 src/or/directory.c       |    9 ++--
 src/or/dirserv.c         |   45 +++++++++-------
 src/or/relay.c           |    5 +-
 src/or/rendclient.c      |   19 ++++---
 src/or/rendservice.c     |   31 +++++++-----
 src/or/rephist.c         |    6 ++-
 src/or/router.c          |  127 ++++++++++++++++++++++++++++++++++++++++++++++
 src/or/router.h          |   15 ++++++
 src/or/routerlist.c      |   36 +++++++------
 src/or/routerparse.c     |    5 +-
 15 files changed, 269 insertions(+), 93 deletions(-)

diff --git a/src/or/circuitbuild.c b/src/or/circuitbuild.c
index 860cd27..469e180 100644
--- a/src/or/circuitbuild.c
+++ b/src/or/circuitbuild.c
@@ -1753,10 +1753,9 @@ circuit_handle_first_hop(origin_circuit_t *circ)
 
   if (!n_conn) {
     /* not currently connected in a useful way. */
-    const char *name = strlen(firsthop->extend_info->nickname) ?
-      firsthop->extend_info->nickname : fmt_addr(&firsthop->extend_info->addr);
     log_info(LD_CIRC, "Next router is %s: %s ",
-             safe_str_client(name), msg?msg:"???");
+             safe_str_client(extend_info_describe(firsthop->extend_info)),
+             msg?msg:"???");
     circ->_base.n_hop = extend_info_dup(firsthop->extend_info);
 
     if (should_launch) {
@@ -2039,7 +2038,7 @@ circuit_send_next_onion_skin(origin_circuit_t *circ)
     circuit_set_state(TO_CIRCUIT(circ), CIRCUIT_STATE_BUILDING);
     log_info(LD_CIRC,"First hop: finished sending %s cell to '%s'",
              fast ? "CREATE_FAST" : "CREATE",
-             router ? router->nickname : "<unnamed>");
+             router ? router_describe(router) : "<unnamed>");
   } else {
     tor_assert(circ->cpath->state == CPATH_STATE_OPEN);
     tor_assert(circ->_base.state == CIRCUIT_STATE_BUILDING);
@@ -2829,7 +2828,7 @@ choose_good_exit_server_general(routerlist_t *dir, int need_uptime,
 
   tor_free(n_supported);
   if (router) {
-    log_info(LD_CIRC, "Chose exit server '%s'", router->nickname);
+    log_info(LD_CIRC, "Chose exit server '%s'", router_describe(router));
     return router;
   }
   if (options->ExitNodes) {
@@ -2936,7 +2935,7 @@ warn_if_last_router_excluded(origin_circuit_t *circ, const extend_info_t *exit)
       log_warn(LD_BUG, "Using %s '%s' which is listed in ExcludeNodes%s, "
                "even though StrictNodes is set. Please report. "
                "(Circuit purpose: %s)",
-               description, exit->nickname,
+               description, extend_info_describe(exit),
                rs==options->ExcludeNodes?"":" or ExcludeExitNodes",
                circuit_purpose_to_string(purpose));
     } else {
@@ -2945,7 +2944,7 @@ warn_if_last_router_excluded(origin_circuit_t *circ, const extend_info_t *exit)
                "prevent this (and possibly break your Tor functionality), "
                "set the StrictNodes configuration option. "
                "(Circuit purpose: %s)",
-               description, exit->nickname,
+               description, extend_info_describe(exit),
                rs==options->ExcludeNodes?"":" or ExcludeExitNodes",
                circuit_purpose_to_string(purpose));
     }
@@ -2976,7 +2975,8 @@ onion_pick_cpath_exit(origin_circuit_t *circ, extend_info_t *exit)
 
   if (exit) { /* the circuit-builder pre-requested one */
     warn_if_last_router_excluded(circ, exit);
-    log_info(LD_CIRC,"Using requested exit node '%s'", exit->nickname);
+    log_info(LD_CIRC,"Using requested exit node '%s'",
+             extend_info_describe(exit));
     exit = extend_info_dup(exit);
   } else { /* we have to decide one */
     routerinfo_t *router =
@@ -3025,8 +3025,8 @@ circuit_extend_to_new_exit(origin_circuit_t *circ, extend_info_t *exit)
   circuit_append_new_exit(circ, exit);
   circuit_set_state(TO_CIRCUIT(circ), CIRCUIT_STATE_BUILDING);
   if ((err_reason = circuit_send_next_onion_skin(circ))<0) {
-    log_warn(LD_CIRC, "Couldn't extend circuit to new point '%s'.",
-             exit->nickname);
+    log_warn(LD_CIRC, "Couldn't extend circuit to new point %s.",
+             extend_info_describe(exit));
     circuit_mark_for_close(TO_CIRCUIT(circ), -err_reason);
     return -1;
   }
@@ -3250,7 +3250,8 @@ onion_extend_cpath(origin_circuit_t *circ)
   }
 
   log_debug(LD_CIRC,"Chose router %s for hop %d (exit is %s)",
-            info->nickname, cur_len+1, build_state_get_exit_nickname(state));
+            extend_info_describe(info),
+            cur_len+1, build_state_get_exit_nickname(state));
 
   onion_append_hop(&circ->cpath, info);
   extend_info_free(info);
@@ -3526,20 +3527,24 @@ log_entry_guards(int severity)
   smartlist_t *elements = smartlist_create();
   char *s;
 
-  SMARTLIST_FOREACH(entry_guards, entry_guard_t *, e,
+  SMARTLIST_FOREACH_BEGIN(entry_guards, entry_guard_t *, e)
     {
       const char *msg = NULL;
       char *cp;
       if (entry_is_live(e, 0, 1, 0, &msg))
-        tor_asprintf(&cp, "%s (up %s)",
+        tor_asprintf(&cp, "%s [%s] (up %s)",
                      e->nickname,
+                     hex_str(e->identity, DIGEST_LEN),
                      e->made_contact ? "made-contact" : "never-contacted");
       else
-        tor_asprintf(&cp, "%s (%s, %s)",
-                     e->nickname, msg,
+        tor_asprintf(&cp, "%s [%s] (%s, %s)",
+                     e->nickname,
+                     hex_str(e->identity, DIGEST_LEN),
+                     msg,
                      e->made_contact ? "made-contact" : "never-contacted");
       smartlist_add(elements, cp);
-    });
+    }
+  SMARTLIST_FOREACH_END(e);
 
   s = smartlist_join_strings(elements, ",", 0, NULL);
   SMARTLIST_FOREACH(elements, char*, cp, tor_free(cp));
@@ -3607,7 +3612,8 @@ add_an_entry_guard(routerinfo_t *chosen, int reset_status)
       return NULL;
   }
   entry = tor_malloc_zero(sizeof(entry_guard_t));
-  log_info(LD_CIRC, "Chose '%s' as new entry guard.", router->nickname);
+  log_info(LD_CIRC, "Chose '%s' as new entry guard.",
+           router_describe(router));
   strlcpy(entry->nickname, router->nickname, sizeof(entry->nickname));
   memcpy(entry->identity, router->cache_info.identity_digest, DIGEST_LEN);
   /* Choose expiry time smudged over the past month. The goal here
@@ -3800,8 +3806,9 @@ entry_guards_compute_status(or_options_t *options, time_t now)
       const char *reason = digestmap_get(reasons, entry->identity);
       const char *live_msg = "";
       routerinfo_t *r = entry_is_live(entry, 0, 1, 0, &live_msg);
-      log_info(LD_CIRC, "Summary: Entry '%s' is %s, %s%s%s, and %s%s.",
+      log_info(LD_CIRC, "Summary: Entry %s [%s] is %s, %s%s%s, and %s%s.",
                entry->nickname,
+               hex_str(entry->identity, DIGEST_LEN),
                entry->unreachable_since ? "unreachable" : "reachable",
                entry->bad_since ? "unusable" : "usable",
                reason ? ", ": "",
diff --git a/src/or/circuitlist.c b/src/or/circuitlist.c
index 8ec4618..4ad244d 100644
--- a/src/or/circuitlist.c
+++ b/src/or/circuitlist.c
@@ -274,8 +274,10 @@ circuit_count_pending_on_or_conn(or_connection_t *or_conn)
   circuit_get_all_pending_on_or_conn(sl, or_conn);
   cnt = smartlist_len(sl);
   smartlist_free(sl);
-  log_debug(LD_CIRC,"or_conn to %s, %d pending circs",
-            or_conn->nickname ? or_conn->nickname : "NULL", cnt);
+  log_debug(LD_CIRC,"or_conn to %s at %s, %d pending circs",
+            or_conn->nickname ? or_conn->nickname : "NULL",
+            or_conn->_base.address,
+            cnt);
   return cnt;
 }
 
diff --git a/src/or/circuituse.c b/src/or/circuituse.c
index 7289aa5..4c29bf8 100644
--- a/src/or/circuituse.c
+++ b/src/or/circuituse.c
@@ -1335,8 +1335,8 @@ circuit_get_open_circ_or_launch(edge_connection_t *conn,
         conn->_base.state = AP_CONN_STATE_RENDDESC_WAIT;
         return 0;
       }
-      log_info(LD_REND,"Chose '%s' as intro point for '%s'.",
-               extend_info->nickname,
+      log_info(LD_REND,"Chose %s as intro point for '%s'.",
+               extend_info_describe(extend_info),
                safe_str_client(conn->rend_data->onion_address));
     }
 
diff --git a/src/or/command.c b/src/or/command.c
index 00d9af3..d25918b 100644
--- a/src/or/command.c
+++ b/src/or/command.c
@@ -274,8 +274,8 @@ command_process_create_cell(cell_t *cell, or_connection_t *conn)
            cell->circ_id, (int)(time(NULL) - conn->_base.timestamp_created));
     if (router)
       log_fn(LOG_PROTOCOL_WARN, LD_PROTOCOL,
-             "Details: nickname \"%s\", platform %s.",
-             router->nickname, escaped(router->platform));
+             "Details: router %s, platform %s.",
+             router_describe(router), escaped(router->platform));
     return;
   }
 
diff --git a/src/or/connection_edge.c b/src/or/connection_edge.c
index 7828f16..78b1b92 100644
--- a/src/or/connection_edge.c
+++ b/src/or/connection_edge.c
@@ -503,12 +503,12 @@ connection_ap_expire_beginning(void)
     }
     tor_assert(circ->purpose == CIRCUIT_PURPOSE_C_GENERAL);
     log_fn(cutoff < 15 ? LOG_INFO : severity, LD_APP,
-           "We tried for %d seconds to connect to '%s' using exit '%s'."
+           "We tried for %d seconds to connect to '%s' using exit %s."
            " Retrying on a new circuit.",
            seconds_idle,
            safe_str_client(conn->socks_request->address),
            conn->cpath_layer ?
-             conn->cpath_layer->extend_info->nickname : "*unnamed*");
+           extend_info_describe(conn->cpath_layer->extend_info): "*unnamed*");
     /* send an end down the circuit */
     connection_edge_end(conn, END_STREAM_REASON_TIMEOUT);
     /* un-mark it as ending, since we're going to reuse it */
@@ -1830,7 +1830,8 @@ connection_ap_handshake_rewrite_and_attach(edge_connection_t *conn,
         if (r) {
           log_info(LD_APP,
                    "Redirecting address %s to exit at enclave router %s",
-                   safe_str_client(socks->address), r->nickname);
+                   safe_str_client(socks->address),
+                   router_describe(r));
           /* use the hex digest, not nickname, in case there are two
              routers with this nickname */
           conn->chosen_exit_name =
diff --git a/src/or/directory.c b/src/or/directory.c
index 347ed42..b238be2 100644
--- a/src/or/directory.c
+++ b/src/or/directory.c
@@ -525,8 +525,9 @@ directory_initiate_command_routerstatus_rend(routerstatus_t *status,
   router = router_get_by_digest(status->identity_digest);
 
   if (!router && anonymized_connection) {
-    log_info(LD_DIR, "Not sending anonymized request to directory '%s'; we "
-                     "don't have its router descriptor.", status->nickname);
+    log_info(LD_DIR, "Not sending anonymized request to directory %s; we "
+             "don't have its router descriptor.",
+             routerstatus_describe(status));
     return;
   } else if (router) {
     address = router->address;
@@ -539,10 +540,10 @@ directory_initiate_command_routerstatus_rend(routerstatus_t *status,
 
   if (options->ExcludeNodes && options->StrictNodes &&
       routerset_contains_routerstatus(options->ExcludeNodes, status)) {
-    log_warn(LD_DIR, "Wanted to contact directory mirror '%s' for %s, but "
+    log_warn(LD_DIR, "Wanted to contact directory mirror %s for %s, but "
              "it's in our ExcludedNodes list and StrictNodes is set. "
              "Skipping. This choice might make your Tor not work.",
-             status->nickname,
+             routerstatus_describe(status),
              dir_conn_purpose_to_string(dir_purpose));
     return;
   }
diff --git a/src/or/dirserv.c b/src/or/dirserv.c
index 79b68cd..e9355fe 100644
--- a/src/or/dirserv.c
+++ b/src/or/dirserv.c
@@ -518,14 +518,15 @@ dirserv_router_has_valid_address(routerinfo_t *ri)
   if (get_options()->DirAllowPrivateAddresses)
     return 0; /* whatever it is, we're fine with it */
   if (!tor_inet_aton(ri->address, &iaddr)) {
-    log_info(LD_DIRSERV,"Router '%s' published non-IP address '%s'. Refusing.",
-             ri->nickname, ri->address);
+    log_info(LD_DIRSERV,"Router %s published non-IP address '%s'. Refusing.",
+             router_describe(ri),
+             ri->address);
     return -1;
   }
   if (is_internal_IP(ntohl(iaddr.s_addr), 0)) {
     log_info(LD_DIRSERV,
-             "Router '%s' published internal IP address '%s'. Refusing.",
-             ri->nickname, ri->address);
+             "Router %s published internal IP address '%s'. Refusing.",
+             router_describe(ri), ri->address);
     return -1; /* it's a private IP, we should reject it */
   }
   return 0;
@@ -554,10 +555,11 @@ authdir_wants_to_reject_router(routerinfo_t *ri, const char **msg,
   /* Is there too much clock skew? */
   now = time(NULL);
   if (ri->cache_info.published_on > now+ROUTER_ALLOW_SKEW) {
-    log_fn(severity, LD_DIRSERV, "Publication time for nickname '%s' is too "
+    log_fn(severity, LD_DIRSERV, "Publication time for %s is too "
            "far (%d minutes) in the future; possible clock skew. Not adding "
            "(%s)",
-           ri->nickname, (int)((ri->cache_info.published_on-now)/60),
+           router_describe(ri),
+           (int)((ri->cache_info.published_on-now)/60),
            esc_router_info(ri));
     *msg = "Rejected: Your clock is set too far in the future, or your "
       "timezone is not correct.";
@@ -565,9 +567,10 @@ authdir_wants_to_reject_router(routerinfo_t *ri, const char **msg,
   }
   if (ri->cache_info.published_on < now-ROUTER_MAX_AGE_TO_PUBLISH) {
     log_fn(severity, LD_DIRSERV,
-           "Publication time for router with nickname '%s' is too far "
+           "Publication time for %s is too far "
            "(%d minutes) in the past. Not adding (%s)",
-           ri->nickname, (int)((now-ri->cache_info.published_on)/60),
+           router_describe(ri),
+           (int)((now-ri->cache_info.published_on)/60),
            esc_router_info(ri));
     *msg = "Rejected: Server is expired, or your clock is too far in the past,"
       " or your timezone is not correct.";
@@ -575,9 +578,10 @@ authdir_wants_to_reject_router(routerinfo_t *ri, const char **msg,
   }
   if (dirserv_router_has_valid_address(ri) < 0) {
     log_fn(severity, LD_DIRSERV,
-           "Router with nickname '%s' has invalid address '%s'. "
+           "Router %s has invalid address '%s'. "
            "Not adding (%s).",
-           ri->nickname, ri->address,
+           router_describe(ri),
+           ri->address,
            esc_router_info(ri));
     *msg = "Rejected: Address is not an IP, or IP is a private address.";
     return -1;
@@ -720,9 +724,9 @@ dirserv_add_descriptor(routerinfo_t *ri, const char **msg, const char *source)
       && router_differences_are_cosmetic(ri_old, ri)
       && !router_is_me(ri)) {
     log_info(LD_DIRSERV,
-             "Not replacing descriptor from '%s' (source: %s); "
+             "Not replacing descriptor from %s (source: %s); "
              "differences are cosmetic.",
-             ri->nickname, source);
+             router_describe(ri), source);
     *msg = "Not replacing router descriptor; no information has changed since "
       "the last one with this identity.";
     control_event_or_authdir_new_descriptor("DROPPED",
@@ -824,10 +828,12 @@ directory_remove_invalid(void)
   for (i = 0; i < smartlist_len(rl->routers); ++i) {
     const char *msg;
     routerinfo_t *ent = smartlist_get(rl->routers, i);
+    char description[NODE_DESC_BUF_LEN];
     uint32_t r = dirserv_router_get_status(ent, &msg);
+    router_get_description(description, ent);
     if (r & FP_REJECT) {
-      log_info(LD_DIRSERV, "Router '%s' is now rejected: %s",
-               ent->nickname, msg?msg:"");
+      log_info(LD_DIRSERV, "Router %s is now rejected: %s",
+               description, msg?msg:"");
       routerlist_remove(rl, ent, 0, time(NULL));
       i--;
       changed = 1;
@@ -835,25 +841,25 @@ directory_remove_invalid(void)
     }
     if (bool_neq((r & FP_NAMED), ent->is_named)) {
       log_info(LD_DIRSERV,
-               "Router '%s' is now %snamed.", ent->nickname,
+               "Router %s is now %snamed.", description,
                (r&FP_NAMED)?"":"un");
       ent->is_named = (r&FP_NAMED)?1:0;
       changed = 1;
     }
     if (bool_neq((r & FP_INVALID), !ent->is_valid)) {
-      log_info(LD_DIRSERV, "Router '%s' is now %svalid.", ent->nickname,
+      log_info(LD_DIRSERV, "Router '%s' is now %svalid.", description,
                (r&FP_INVALID) ? "in" : "");
       ent->is_valid = (r&FP_INVALID)?0:1;
       changed = 1;
     }
     if (bool_neq((r & FP_BADDIR), ent->is_bad_directory)) {
-      log_info(LD_DIRSERV, "Router '%s' is now a %s directory", ent->nickname,
+      log_info(LD_DIRSERV, "Router '%s' is now a %s directory", description,
                (r & FP_BADDIR) ? "bad" : "good");
       ent->is_bad_directory = (r&FP_BADDIR) ? 1: 0;
       changed = 1;
     }
     if (bool_neq((r & FP_BADEXIT), ent->is_bad_exit)) {
-      log_info(LD_DIRSERV, "Router '%s' is now a %s exit", ent->nickname,
+      log_info(LD_DIRSERV, "Router '%s' is now a %s exit", description,
                (r & FP_BADEXIT) ? "bad" : "good");
       ent->is_bad_exit = (r&FP_BADEXIT) ? 1: 0;
       changed = 1;
@@ -3163,7 +3169,8 @@ dirserv_orconn_tls_done(const char *address,
       if (!bridge_auth || ri->purpose == ROUTER_PURPOSE_BRIDGE) {
         tor_addr_t addr, *addrp=NULL;
         log_info(LD_DIRSERV, "Found router %s to be reachable at %s:%d. Yay.",
-                 ri->nickname, address, ri->or_port );
+                 router_describe(ri),
+                 address, ri->or_port);
         if (tor_addr_from_str(&addr, ri->address) != -1)
           addrp = &addr;
         else
diff --git a/src/or/relay.c b/src/or/relay.c
index 9effae3..46e8522 100644
--- a/src/or/relay.c
+++ b/src/or/relay.c
@@ -28,6 +28,7 @@
 #include "reasons.h"
 #include "relay.h"
 #include "rendcommon.h"
+#include "router.h"
 #include "routerlist.h"
 #include "routerparse.h"
 
@@ -749,9 +750,9 @@ connection_ap_process_end_not_open(
              (tor_inet_aton(conn->socks_request->address, &in) &&
               !conn->chosen_exit_name))) {
           log_info(LD_APP,
-                 "Exitrouter '%s' seems to be more restrictive than its exit "
+                 "Exitrouter %s seems to be more restrictive than its exit "
                  "policy. Not using this router as exit for now.",
-                 exitrouter->nickname);
+                 router_describe(exitrouter));
           policies_set_router_exitpolicy_to_reject_all(exitrouter);
         }
         /* rewrite it to an IP if we learned one. */
diff --git a/src/or/rendclient.c b/src/or/rendclient.c
index 77e11c2..af6f43a 100644
--- a/src/or/rendclient.c
+++ b/src/or/rendclient.c
@@ -20,6 +20,7 @@
 #include "rendclient.h"
 #include "rendcommon.h"
 #include "rephist.h"
+#include "router.h"
 #include "routerlist.h"
 
 static extend_info_t *rend_client_get_random_intro_impl(
@@ -90,12 +91,13 @@ rend_client_reextend_intro_circuit(origin_circuit_t *circ)
   if (circ->remaining_relay_early_cells) {
     log_info(LD_REND,
              "Re-extending circ %d, this time to %s.",
-             circ->_base.n_circ_id, extend_info->nickname);
+             circ->_base.n_circ_id,
+             safe_str_client(extend_info_describe(extend_info)));
     result = circuit_extend_to_new_exit(circ, extend_info);
   } else {
     log_info(LD_REND,
              "Building a new introduction circuit, this time to %s.",
-             extend_info->nickname);
+             safe_str_client(extend_info_describe(extend_info)));
     circuit_mark_for_close(TO_CIRCUIT(circ), END_CIRC_REASON_FINISHED);
     if (!circuit_launch_by_extend_info(CIRCUIT_PURPOSE_C_INTRODUCING,
                                        extend_info,
@@ -168,7 +170,8 @@ rend_client_send_introduction(origin_circuit_t *introcirc,
              "have a v2 rend desc with %d intro points. "
              "Trying a different intro point...",
              safe_str_client(introcirc->rend_data->onion_address),
-             introcirc->build_state->chosen_exit->nickname,
+             safe_str_client(extend_info_describe(
+                                   introcirc->build_state->chosen_exit)),
              smartlist_len(entry->parsed->intro_nodes));
 
     if (rend_client_reextend_intro_circuit(introcirc)) {
@@ -343,8 +346,8 @@ rend_client_introduction_acked(origin_circuit_t *circ,
      * If none remain, refetch the service descriptor.
      */
     log_info(LD_REND, "Got nack for %s from %s...",
-             safe_str_client(circ->rend_data->onion_address),
-             circ->build_state->chosen_exit->nickname);
+        safe_str_client(circ->rend_data->onion_address),
+        safe_str_client(extend_info_describe(circ->build_state->chosen_exit)));
     if (rend_client_remove_intro_point(circ->build_state->chosen_exit,
                                        circ->rend_data) > 0) {
       /* There are introduction points left. Re-extend the circuit to
@@ -497,12 +500,12 @@ directory_get_from_hs_dir(const char *desc_id, const rend_data_t *rend_query)
   log_info(LD_REND, "Sending fetch request for v2 descriptor for "
                     "service '%s' with descriptor ID '%s', auth type %d, "
                     "and descriptor cookie '%s' to hidden service "
-                    "directory '%s' on port %d.",
+                    "directory %s",
            rend_query->onion_address, desc_id_base32,
            rend_query->auth_type,
            (rend_query->auth_type == REND_NO_AUTH ? "[none]" :
-           escaped_safe_str_client(descriptor_cookie_base64)),
-           hs_dir->nickname, hs_dir->dir_port);
+            escaped_safe_str_client(descriptor_cookie_base64)),
+           routerstatus_describe(hs_dir));
   return 1;
 }
 
diff --git a/src/or/rendservice.c b/src/or/rendservice.c
index 35e8b90..edcf59d 100644
--- a/src/or/rendservice.c
+++ b/src/or/rendservice.c
@@ -474,7 +474,8 @@ rend_config_services(or_options_t *options, int validate_only)
         if (keep_it)
           continue;
         log_info(LD_REND, "Closing intro point %s for service %s.",
-                 safe_str_client(oc->build_state->chosen_exit->nickname),
+                 safe_str_client(extend_info_describe(
+                                            oc->build_state->chosen_exit)),
                  oc->rend_data->onion_address);
         circuit_mark_for_close(circ, END_CIRC_REASON_FINISHED);
         /* XXXX Is there another reason we should use here? */
@@ -1146,7 +1147,7 @@ rend_service_introduce(origin_circuit_t *circuit, const uint8_t *request,
   if (!launched) { /* give up */
     log_warn(LD_REND, "Giving up launching first hop of circuit to rendezvous "
              "point %s for service %s.",
-             escaped_safe_str_client(extend_info->nickname),
+             safe_str_client(extend_info_describe(extend_info)),
              serviceid);
     reason = END_CIRC_REASON_CONNECTFAILED;
     goto err;
@@ -1154,7 +1155,7 @@ rend_service_introduce(origin_circuit_t *circuit, const uint8_t *request,
   log_info(LD_REND,
            "Accepted intro; launching circuit to %s "
            "(cookie %s) for service %s.",
-           escaped_safe_str_client(extend_info->nickname),
+           safe_str_client(extend_info_describe(extend_info)),
            hexcookie, serviceid);
   tor_assert(launched->build_state);
   /* Fill in the circuit's state. */
@@ -1206,7 +1207,8 @@ rend_service_relaunch_rendezvous(origin_circuit_t *oldcirc)
              "Attempt to build circuit to %s for rendezvous has failed "
              "too many times or expired; giving up.",
              oldcirc->build_state ?
-               oldcirc->build_state->chosen_exit->nickname : "*unknown*");
+             safe_str(extend_info_describe(oldcirc->build_state->chosen_exit))
+             : "*unknown*");
     return;
   }
 
@@ -1220,7 +1222,7 @@ rend_service_relaunch_rendezvous(origin_circuit_t *oldcirc)
   }
 
   log_info(LD_REND,"Reattempting rendezvous circuit to '%s'",
-           oldstate->chosen_exit->nickname);
+           safe_str(extend_info_describe(oldstate->chosen_exit)));
 
   newcirc = circuit_launch_by_extend_info(CIRCUIT_PURPOSE_S_CONNECT_REND,
                             oldstate->chosen_exit,
@@ -1228,7 +1230,7 @@ rend_service_relaunch_rendezvous(origin_circuit_t *oldcirc)
 
   if (!newcirc) {
     log_warn(LD_REND,"Couldn't relaunch rendezvous circuit to '%s'.",
-             oldstate->chosen_exit->nickname);
+             safe_str(extend_info_describe(oldstate->chosen_exit)));
     return;
   }
   newstate = newcirc->build_state;
@@ -1252,7 +1254,7 @@ rend_service_launch_establish_intro(rend_service_t *service,
 
   log_info(LD_REND,
            "Launching circuit to introduction point %s for service %s",
-           escaped_safe_str_client(intro->extend_info->nickname),
+           safe_str_client(extend_info_describe(intro->extend_info)),
            service->service_id);
 
   rep_hist_note_used_internal(time(NULL), 1, 0);
@@ -1265,7 +1267,7 @@ rend_service_launch_establish_intro(rend_service_t *service,
   if (!launched) {
     log_info(LD_REND,
              "Can't launch circuit to establish introduction at %s.",
-             escaped_safe_str_client(intro->extend_info->nickname));
+             safe_str_client(extend_info_describe(intro->extend_info)));
     return -1;
   }
 
@@ -1608,9 +1610,9 @@ directory_post_to_hs_dir(rend_service_descriptor_t *renddesc,
         continue;
       if (!router_get_by_digest(hs_dir->identity_digest)) {
         log_info(LD_REND, "Not sending publish request for v2 descriptor to "
-                          "hidden service directory '%s'; we don't have its "
+                          "hidden service directory %s; we don't have its "
                           "router descriptor. Queuing for later upload.",
-                 hs_dir->nickname);
+                 safe_str_client(routerstatus_describe(hs_dir)));
         failed_upload = -1;
         continue;
       }
@@ -1818,7 +1820,8 @@ rend_services_introduce(void)
       router = router_get_by_digest(intro->extend_info->identity_digest);
       if (!router || !find_intro_circuit(intro, service->pk_digest)) {
         log_info(LD_REND,"Giving up on %s as intro point for %s.",
-                 intro->extend_info->nickname, service->service_id);
+                 safe_str_client(extend_info_describe(intro->extend_info)),
+                 safe_str_client(service->service_id));
         if (service->desc) {
           SMARTLIST_FOREACH(service->desc->intro_nodes, rend_intro_point_t *,
                             dintro, {
@@ -1884,7 +1887,8 @@ rend_services_introduce(void)
       tor_assert(!crypto_pk_generate_key(intro->intro_key));
       smartlist_add(service->intro_nodes, intro);
       log_info(LD_REND, "Picked router %s as an intro point for %s.",
-               router->nickname, service->service_id);
+               safe_str_client(router_describe(router)),
+               safe_str_client(service->service_id));
     }
 
     /* If there's no need to launch new circuits, stop here. */
@@ -1897,7 +1901,8 @@ rend_services_introduce(void)
       r = rend_service_launch_establish_intro(service, intro);
       if (r<0) {
         log_warn(LD_REND, "Error launching circuit to node %s for service %s.",
-                 intro->extend_info->nickname, service->service_id);
+                 safe_str_client(extend_info_describe(intro->extend_info)),
+                 safe_str_client(service->service_id));
       }
     }
   }
diff --git a/src/or/rephist.c b/src/or/rephist.c
index 8cddd2b..6be8484 100644
--- a/src/or/rephist.c
+++ b/src/or/rephist.c
@@ -634,6 +634,7 @@ rep_hist_dump_stats(time_t now, int severity)
   digestmap_iter_t *orhist_it;
   const char *name1, *name2, *digest1, *digest2;
   char hexdigest1[HEX_DIGEST_LEN+1];
+  char hexdigest2[HEX_DIGEST_LEN+1];
   or_history_t *or_history;
   link_history_t *link_history;
   void *or_history_p, *link_history_p;
@@ -694,7 +695,10 @@ rep_hist_dump_stats(time_t now, int severity)
 
         link_history = (link_history_t*) link_history_p;
 
-        ret = tor_snprintf(buffer+len, 2048-len, "%s(%ld/%ld); ", name2,
+        base16_encode(hexdigest2, sizeof(hexdigest2), digest2, DIGEST_LEN);
+        ret = tor_snprintf(buffer+len, 2048-len, "%s [%s](%ld/%ld); ",
+                        name2,
+                        hexdigest2,
                         link_history->n_extend_ok,
                         link_history->n_extend_ok+link_history->n_extend_fail);
         if (ret<0)
diff --git a/src/or/router.c b/src/or/router.c
index 616a290..a11d3a5 100644
--- a/src/or/router.c
+++ b/src/or/router.c
@@ -2217,6 +2217,133 @@ is_legal_hexdigest(const char *s)
           strspn(s,HEX_CHARACTERS)==HEX_DIGEST_LEN);
 }
 
+/** Use <b>buf</b> (which must be at least NODE_DESC_BUF_LEN bytes long) to
+ * hold a human-readable description of a node with identity digest
+ * <b>id_digest</b>, named-status <b>is_named</b>, nickname <b>nickname</b>,
+ * and address <b>addr</b> or <b>addr32h</b>.
+ *
+ * The <b>nickname</b> and <b>addr</b> fields are optional and may be set to
+ * NULL.  The <b>addr32h</b> field is optional and may be set to
+ * <b>addr32h</b>.
+ *
+ * Return a pointer to the front of <b>buf</b>.
+ */
+const char *
+format_node_description(char *buf,
+                        const char *id_digest,
+                        int is_named,
+                        const char *nickname,
+                        const tor_addr_t *addr,
+                        uint32_t addr32h)
+{
+  char *cp;
+  buf[0] = '$';
+  base16_encode(buf+1, HEX_DIGEST_LEN+1, id_digest, DIGEST_LEN);
+  cp = buf+1+HEX_DIGEST_LEN;
+  if (nickname) {
+    buf[1+HEX_DIGEST_LEN] = is_named ? '=' : '~';
+    strlcpy(buf+1+HEX_DIGEST_LEN+1, nickname, MAX_NICKNAME_LEN+1);
+    cp += strlen(cp);
+  }
+  if (addr32h || addr) {
+    memcpy(cp, " at ", 4);
+    cp += 4;
+    if (addr) {
+      tor_addr_to_str(cp, addr, TOR_ADDR_BUF_LEN, 0);
+    } else {
+      struct in_addr in;
+      in.s_addr = htonl(addr32h);
+      tor_inet_ntoa(&in, cp, INET_NTOA_BUF_LEN);
+    }
+  }
+  return buf;
+}
+
+/** Use <b>buf</b> (which must be at least NODE_DESC_BUF_LEN bytes long) to
+ * hold a human-readable description of <b>ri</b>.
+ *
+ *
+ * Return a pointer to the front of <b>buf</b>.
+ */
+const char *
+router_get_description(char *buf, const routerinfo_t *ri)
+{
+  return format_node_description(buf,
+                                 ri->cache_info.identity_digest,
+                                 ri->is_named,
+                                 ri->nickname,
+                                 NULL,
+                                 ri->addr);
+}
+
+/** Use <b>buf</b> (which must be at least NODE_DESC_BUF_LEN bytes long) to
+ * hold a human-readable description of <b>rs</b>.
+ *
+ * Return a pointer to the front of <b>buf</b>.
+ */
+const char *
+routerstatus_get_description(char *buf, const routerstatus_t *rs)
+{
+  return format_node_description(buf,
+                                 rs->identity_digest,
+                                 rs->is_named,
+                                 rs->nickname,
+                                 NULL,
+                                 rs->addr);
+}
+
+/** Use <b>buf</b> (which must be at least NODE_DESC_BUF_LEN bytes long) to
+ * hold a human-readable description of <b>ei</b>.
+ *
+ * Return a pointer to the front of <b>buf</b>.
+ */
+const char *
+extend_info_get_description(char *buf, const extend_info_t *ei)
+{
+  return format_node_description(buf,
+                                 ei->identity_digest,
+                                 0,
+                                 ei->nickname,
+                                 &ei->addr,
+                                 0);
+}
+
+/** Return a human-readable description of the routerinfo_t <b>ri</b>.
+ *
+ * This function is not thread-safe.  Each call to this function invalidates
+ * previous values returned by this function.
+ */
+const char *
+router_describe(const routerinfo_t *ri)
+{
+  static char buf[NODE_DESC_BUF_LEN];
+  return router_get_description(buf, ri);
+}
+
+/** Return a human-readable description of the routerstatus_t <b>rs</b>.
+ *
+ * This function is not thread-safe.  Each call to this function invalidates
+ * previous values returned by this function.
+ */
+const char *
+routerstatus_describe(const routerstatus_t *rs)
+{
+  static char buf[NODE_DESC_BUF_LEN];
+  return routerstatus_get_description(buf, rs);
+}
+
+/** Return a human-readable description of the extend_info_t <b>ri</b>.
+ *
+ * This function is not thread-safe.  Each call to this function invalidates
+ * previous values returned by this function.
+ */
+const char *
+extend_info_describe(const extend_info_t *ei)
+{
+  static char buf[NODE_DESC_BUF_LEN];
+  return extend_info_get_description(buf, ei);
+}
+
 /** Set <b>buf</b> (which must have MAX_VERBOSE_NICKNAME_LEN+1 bytes) to the
  * verbose representation of the identity of <b>router</b>.  The format is:
  *  A dollar sign.
diff --git a/src/or/router.h b/src/or/router.h
index 1bf1a51..6cabfd5 100644
--- a/src/or/router.h
+++ b/src/or/router.h
@@ -85,6 +85,21 @@ int extrainfo_dump_to_string(char **s, extrainfo_t *extrainfo,
 int is_legal_nickname(const char *s);
 int is_legal_nickname_or_hexdigest(const char *s);
 int is_legal_hexdigest(const char *s);
+
+#define NODE_DESC_BUF_LEN (MAX_VERBOSE_NICKNAME_LEN+4+TOR_ADDR_BUF_LEN)
+const char *format_node_description(char *buf,
+                                    const char *id_digest,
+                                    int is_named,
+                                    const char *nickname,
+                                    const tor_addr_t *addr,
+                                    uint32_t addr32h);
+const char *router_get_description(char *buf, const routerinfo_t *ri);
+const char *routerstatus_get_description(char *buf, const routerstatus_t *rs);
+const char *extend_info_get_description(char *buf, const extend_info_t *ei);
+const char *router_describe(const routerinfo_t *ri);
+const char *routerstatus_describe(const routerstatus_t *ri);
+const char *extend_info_describe(const extend_info_t *ei);
+
 void router_get_verbose_nickname(char *buf, const routerinfo_t *router);
 void routerstatus_get_verbose_nickname(char *buf,
                                        const routerstatus_t *router);
diff --git a/src/or/routerlist.c b/src/or/routerlist.c
index a3d9b78..47a57a8 100644
--- a/src/or/routerlist.c
+++ b/src/or/routerlist.c
@@ -3210,8 +3210,8 @@ router_set_status(const char *digest, int up)
 
   router = router_get_by_digest(digest);
   if (router) {
-    log_debug(LD_DIR,"Marking router '%s/%s' as %s.",
-              router->nickname, router->address, up ? "up" : "down");
+    log_debug(LD_DIR,"Marking router %s as %s.",
+              router_describe(router), up ? "up" : "down");
     if (!up && router_is_me(router) && !we_are_hibernating())
       log_warn(LD_NET, "We just marked ourself as down. Are your external "
                "addresses reachable?");
@@ -3283,11 +3283,12 @@ router_add_to_routerlist(routerinfo_t *router, const char **msg,
         router->purpose == ROUTER_PURPOSE_BRIDGE &&
         !was_bridge) {
       log_info(LD_DIR, "Replacing non-bridge descriptor with bridge "
-               "descriptor for router '%s'", router->nickname);
+               "descriptor for router %s",
+               router_describe(router));
     } else {
       log_info(LD_DIR,
-               "Dropping descriptor that we already have for router '%s'",
-               router->nickname);
+               "Dropping descriptor that we already have for router %s",
+               router_describe(router));
       *msg = "Router descriptor was not new.";
       routerinfo_free(router);
       return ROUTER_WAS_NOT_NEW;
@@ -3311,8 +3312,8 @@ router_add_to_routerlist(routerinfo_t *router, const char **msg,
       /* We asked for it, so some networkstatus must have listed it when we
        * did.  Save it if we're a cache in case somebody else asks for it. */
       log_info(LD_DIR,
-               "Received a no-longer-recognized descriptor for router '%s'",
-               router->nickname);
+               "Received a no-longer-recognized descriptor for router %s",
+               router_describe(router));
       *msg = "Router descriptor is not referenced by any network-status.";
 
       /* Only journal this desc if we'll be serving it. */
@@ -3363,8 +3364,9 @@ router_add_to_routerlist(routerinfo_t *router, const char **msg,
   if (router->purpose == ROUTER_PURPOSE_BRIDGE && from_cache &&
       !authdir_mode_bridge(options) &&
       !routerinfo_is_a_configured_bridge(router)) {
-    log_info(LD_DIR, "Dropping bridge descriptor for '%s' because we have "
-             "no bridge configured at that address.", router->nickname);
+    log_info(LD_DIR, "Dropping bridge descriptor for %s because we have "
+             "no bridge configured at that address.",
+             safe_str_client(router_describe(router)));
     *msg = "Router descriptor was not a configured bridge.";
     routerinfo_free(router);
     return ROUTER_WAS_NOT_WANTED;
@@ -3375,8 +3377,8 @@ router_add_to_routerlist(routerinfo_t *router, const char **msg,
     if (!in_consensus && (router->cache_info.published_on <=
                           old_router->cache_info.published_on)) {
       /* Same key, but old.  This one is not listed in the consensus. */
-      log_debug(LD_DIR, "Not-new descriptor for router '%s'",
-                router->nickname);
+      log_debug(LD_DIR, "Not-new descriptor for router %s",
+                router_describe(router));
       /* Only journal this desc if we'll be serving it. */
       if (!from_cache && should_cache_old_descriptors())
         signed_desc_append_to_journal(&router->cache_info,
@@ -3386,9 +3388,8 @@ router_add_to_routerlist(routerinfo_t *router, const char **msg,
       return ROUTER_WAS_NOT_NEW;
     } else {
       /* Same key, and either new, or listed in the consensus. */
-      log_debug(LD_DIR, "Replacing entry for router '%s/%s' [%s]",
-                router->nickname, old_router->nickname,
-                hex_str(id_digest,DIGEST_LEN));
+      log_debug(LD_DIR, "Replacing entry for router %s",
+                router_describe(router));
       if (routers_have_same_or_addr(router, old_router)) {
         /* these carry over when the address and orport are unchanged. */
         router->last_reachable = old_router->last_reachable;
@@ -3664,8 +3665,8 @@ routerlist_remove_old_routers(void)
         /* Too old: remove it.  (If we're a cache, just move it into
          * old_routers.) */
         log_info(LD_DIR,
-                 "Forgetting obsolete (too old) routerinfo for router '%s'",
-                 router->nickname);
+                 "Forgetting obsolete (too old) routerinfo for router %s",
+                 router_describe(router));
         routerlist_remove(routerlist, router, 1, now);
         i--;
       }
@@ -4585,7 +4586,8 @@ update_consensus_router_descriptor_downloads(time_t now, int is_vote,
         if (oldrouter)
           format_iso_time(time_bufold, oldrouter->cache_info.published_on);
         log_info(LD_DIR, "Learned about %s (%s vs %s) from %s's vote (%s)",
-                 rs->nickname, time_bufnew,
+                 routerstatus_describe(rs),
+                 time_bufnew,
                  oldrouter ? time_bufold : "none",
                  source->nickname, oldrouter ? "known" : "unknown");
       }
diff --git a/src/or/routerparse.c b/src/or/routerparse.c
index 389f22f..a877cdf 100644
--- a/src/or/routerparse.c
+++ b/src/or/routerparse.c
@@ -1210,7 +1210,8 @@ router_parse_list_from_string(const char **s, const char *eos,
                                               prepend_annotations);
       if (router) {
         log_debug(LD_DIR, "Read router '%s', purpose '%s'",
-                  router->nickname, router_purpose_to_string(router->purpose));
+                  router_describe(router),
+                  router_purpose_to_string(router->purpose));
         signed_desc = &router->cache_info;
         elt = router;
       }
@@ -2488,7 +2489,7 @@ networkstatus_verify_bw_weights(networkstatus_t *ns)
       }
     } else {
       log_warn(LD_BUG, "Missing consensus bandwidth for router %s",
-          rs->nickname);
+               routerstatus_describe(rs));
     }
   } SMARTLIST_FOREACH_END(rs);
 



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