Allow logging of completed events to syslog

Makefile

@@ -35,6 +35,7 @@ BINDIR?=$(PREFIX)/bin
 #FEATURES+=-DWANT_LOG_NUMWANT
 #FEATURES+=-DWANT_MODEST_FULLSCRAPES
 #FEATURES+=-DWANT_SPOT_WOODPECKER
+#FEATURES+=-DWANT_SYSLOGS
 FEATURES+=-DWANT_FULLSCRAPE
 
 #FEATURES+=-D_DEBUG_HTTPERROR

ot_stats.c

@@ -14,6 +14,9 @@
 #include <pthread.h>
 #include <unistd.h>
 #include <inttypes.h>
+#ifdef WANT_SYSLOGS
+#include <syslog.h>
+#endif
 
 /* Libowfat */
 #include "byte.h"
@@ -637,6 +640,13 @@ void stats_issue_event( ot_status_event event, PROTO_FLAG proto, uintptr_t event
       if( proto == FLAG_TCP ) ot_overall_tcp_connects++; else ot_overall_udp_connects++;
       break;
     case EVENT_COMPLETED:
+#ifdef WANT_SYSLOGS
+      if( event_data) {
+        char hex_out[42];
+        to_hex( hex_out, (uint8_t*)event_data );
+        syslog( LOG_INFO, "event=completed info_hash=%s", hex_out );
+      }
+#endif
       ot_overall_completed++;
       break;
     case EVENT_SCRAPE:
@@ -715,10 +725,17 @@ static pthread_t thread_id;
 void stats_init( ) {
   ot_start_time = g_now_seconds;
   pthread_create( &thread_id, NULL, stats_worker, NULL );
+#ifdef WANT_SYSLOGS
+  openlog( "opentracker", 0, LOG_USER );
+  setlogmask(LOG_UPTO(LOG_INFO));
+#endif
 }
 
 void stats_deinit( ) {
   pthread_cancel( thread_id );
+#ifdef WANT_SYSLOGS
+  closelog();
+#endif
 }
 
 const char *g_version_stats_c = "$Source$: $Revision$\n";

trackerlogic.c

@@ -138,7 +138,7 @@ size_t add_peer_to_torrent_and_return_peers( ot_hash hash, ot_peer *peer, PROTO_
     torrent->peer_list->peer_count++;
     if( OT_PEERFLAG(peer) & PEER_FLAG_COMPLETED ) {
       torrent->peer_list->down_count++;
-      stats_issue_event( EVENT_COMPLETED, 0, 0 );
+      stats_issue_event( EVENT_COMPLETED, 0, (uintptr_t)torrent->hash );
     }
     if( OT_PEERFLAG(peer) & PEER_FLAG_SEEDING )
       torrent->peer_list->seed_count++;