Fix white spaces

Introduce loading tracker states with -l
Alter tracker state to a human readable form

opentracker.c

@@ -394,6 +394,42 @@ int parse_configfile( char * config_filename ) {
   return bound;
 }
 
+void load_state(const char * const state_filename ) {
+  FILE *  state_filehandle;
+  char    inbuf[512];
+  ot_hash infohash;
+  unsigned long long base, downcount;
+  int consumed;
+
+  state_filehandle = fopen( state_filename, "r" );
+
+  if( state_filehandle == NULL ) {
+    fprintf( stderr, "Warning: Can't open config file: %s.", state_filename );
+    return;
+  }
+
+  /* We do ignore anything that is not of the form "^[:xdigit:]:\d+:\d+" */
+  while( fgets( inbuf, sizeof(inbuf), state_filehandle ) ) {
+    int i;
+    for( i=0; i<(int)sizeof(ot_hash); ++i ) {
+      int eger = 16 * scan_fromhex( inbuf[ 2*i ] ) + scan_fromhex( inbuf[ 1 + 2*i ] );
+      if( eger < 0 )
+        continue;
+      infohash[i] = eger;
+    }
+
+    if( i != (int)sizeof(ot_hash) ) continue;
+    i *= 2;
+
+    if( inbuf[ i++ ] != ':' || !( consumed = scan_ulonglong( inbuf+i, &base ) ) ) continue;
+    i += consumed;
+    if( inbuf[ i++ ] != ':' || !( consumed = scan_ulonglong( inbuf+i, &downcount ) ) ) continue;
+    add_torrent_from_saved_state( infohash, base, downcount );
+  }
+    
+  fclose( state_filehandle );
+}
+
 int drop_privileges (const char * const serverdir) {
   struct passwd *pws = NULL;
 
@@ -448,7 +484,7 @@ int main( int argc, char **argv ) {
 #endif
 
 while( scanon ) {
-    switch( getopt( argc, argv, ":i:p:A:P:d:r:s:f:v"
+    switch( getopt( argc, argv, ":i:p:A:P:d:r:s:f:l:v"
 #ifdef WANT_ACCESSLIST_BLACK
 "b:"
 #elif defined( WANT_ACCESSLIST_WHITE )
@@ -477,6 +513,7 @@ while( scanon ) {
 #endif
       case 'd': set_config_option( &g_serverdir, optarg ); break;
       case 'r': set_config_option( &g_redirecturl, optarg ); break;
+      case 'l': load_state( optarg ); break;
       case 'A':
         if( !scan_ip6( optarg, tmpip )) { usage( argv[0] ); exit( 1 ); }
         accesslist_blessip( tmpip, 0xffff ); /* Allow everything for now */

ot_fullscrape.c

@@ -184,10 +184,8 @@ static void fullscrape_make( int *iovec_entries, struct iovec **iovector, ot_tas
         r += sprintf( r, ":%zd:%zd\n", peer_list->seed_count, peer_list->peer_count-peer_list->seed_count );
         break;
       case TASK_FULLSCRAPE_TRACKERSTATE:
-        memcpy( r, *hash, sizeof(ot_hash) ); r += sizeof(ot_hash);
-        uint64_pack_big( r,     (uint64_t)peer_list->down_count );
-        uint64_pack_big( r + 8, (uint64_t)peer_list->base );
-        r += 16;
+        to_hex( r, *hash ); r+= 2 * sizeof(ot_hash);
+        r += sprintf( r, ":%zd:%zd\n", peer_list->base, peer_list->down_count );
         break;
       }
 

ot_http.c

@@ -412,6 +412,9 @@ static ssize_t http_handle_announce( const int64 sock, struct ot_workstruct *ws,
     }
   }
 
+  /* XXX DEBUG */
+  stats_issue_event( EVENT_ACCEPT, FLAG_TCP, (uintptr_t)ws->reply );
+
   /* Scanned whole query string */
   if( !hash )
     return ws->reply_size = sprintf( ws->reply, "d14:failure reason80:Your client forgot to send your torrent's info_hash. Please upgrade your client.e" );

trackerlogic.c

@@ -41,6 +41,33 @@ void free_peerlist( ot_peerlist *peer_list ) {
   free( peer_list );
 }
 
+void add_torrent_from_saved_state( ot_hash hash, ot_time base, size_t down_count ) {
+  int         exactmatch;
+  ot_torrent *torrent;
+  ot_vector  *torrents_list = mutex_bucket_lock_by_hash( hash );
+
+  if( !accesslist_hashisvalid( hash ) )
+    return mutex_bucket_unlock_by_hash( hash, 0 );
+  
+  torrent = vector_find_or_insert( torrents_list, (void*)hash, sizeof( ot_torrent ), OT_HASH_COMPARE_SIZE, &exactmatch );
+  if( !torrent || exactmatch )
+    return mutex_bucket_unlock_by_hash( hash, 0 );
+
+  /* Create a new torrent entry, then */
+  memcpy( torrent->hash, hash, sizeof(ot_hash) );
+    
+  if( !( torrent->peer_list = malloc( sizeof (ot_peerlist) ) ) ) {
+    vector_remove_torrent( torrents_list, torrent );
+    return mutex_bucket_unlock_by_hash( hash, 0 );
+  }
+    
+  byte_zero( torrent->peer_list, sizeof( ot_peerlist ) );
+  torrent->peer_list->base = base;
+  torrent->peer_list->down_count = down_count;
+
+  return mutex_bucket_unlock_by_hash( hash, 1 );
+}
+
 size_t add_peer_to_torrent_and_return_peers( ot_hash hash, ot_peer *peer, PROTO_FLAG proto, size_t amount, char * reply ) {
   int         exactmatch, delta_torrentcount = 0;
   size_t      reply_size;

trackerlogic.h

@@ -147,6 +147,7 @@ size_t  add_peer_to_torrent_and_return_peers( ot_hash hash, ot_peer *peer, PROTO
 size_t  remove_peer_from_torrent( ot_hash hash, ot_peer *peer, char *reply, PROTO_FLAG proto );
 size_t  return_tcp_scrape_for_torrent( ot_hash *hash, int amount, char *reply );
 size_t  return_udp_scrape_for_torrent( ot_hash hash, char *reply );
+void    add_torrent_from_saved_state( ot_hash hash, ot_time base, size_t down_count );
 
 /* torrent iterator */
 void iterate_all_torrents( int (*for_each)( ot_torrent* torrent, uintptr_t data ), uintptr_t data );