New Makefile, incorporated some patches sent to me by Robin H. Johnson

Makefile

@@ -1,15 +1,37 @@
 CC?=gcc
-FEATURES=#-DWANT_IP_FROM_QUERY_STRING -DWANT_BLACKLIST -DWANT_CLOSED_TRACKER -D_DEBUG_HTTPERROR
-#DEBUG_OPTS=-g -ggdb -pg # -fprofile-arcs -ftest-coverage
-DEBUG_OPTS=-s -Os
-CFLAGS+=-I../libowfat -Wall -pipe# -pedantic -ansi
+FEATURES=#-DWANT_IP_FROM_QUERY_STRING -D_DEBUG_HTTPERROR
+OPTS_debug=-g -ggdb #-pg # -fprofile-arcs -ftest-coverage
+OPTS_production=-s -Os
+CFLAGS+=-I../libowfat -Wall -pipe -Wextra #-pedantic #-ansi
 LDFLAGS+=-L../libowfat/ -lowfat
  
+BINARY = opentracker
 HEADERS=trackerlogic.h scan_urlencoded_query.h
 SOURCES=opentracker.c trackerlogic.c scan_urlencoded_query.c
  
-opentracker: $(SOURCES) $(HEADERS)
-	$(CC) $(SOURCES) -o opentracker $(CFLAGS) $(FEATURES) $(DEBUG_OPTS) $(LDFLAGS)
+all: $(BINARY) $(BINARY).debug
+
+CFLAGS_production = $(CFLAGS) $(OPTS_production) $(FEATURES)
+CFLAGS_debug = $(CFLAGS) $(OPTS_debug) $(FEATURES)
+
+OBJECTS_debug = $(SOURCES:%.c=%.debug.o)
+OBJECTS_production = $(SOURCES:%.c=%.production.o)
+
+$(OBJECTS_debug) $(OBJECTS_production): $(HEADERS)
+
+%.production.o : CFLAGS := $(CFLAGS_production)
+%.debug.o : CFLAGS := $(CFLAGS_debug)
+
+%.production.o : %.c 
+	$(COMPILE.c) $(OUTPUT_OPTION) $<
+%.debug.o : %.c 
+	$(COMPILE.c) $(OUTPUT_OPTION) $<
+
+$(BINARY): $(OBJECTS_production)
+	$(CC) $^ -o $@ $(CFLAGS_production) $(LDFLAGS)
+$(BINARY).debug: $(OBJECTS_debug)
+	$(CC) $^ -o $@ $(CFLAGS_debug) $(LDFLAGS)
+ 
+ clean:
+	rm -rf opentracker *.o *~
  
-clean:
-	rm -rf opentracker

opentracker.c

@@ -154,7 +154,7 @@ static void senddata( const int64 s, char *buffer, size_t size ) {
     array_reset( &h->request );
 
   written_size = write( s, buffer, size );
-  if( ( written_size < 0 ) || ( written_size == size ) ) {
+  if( ( written_size < 0 ) || ( (size_t)written_size == size ) ) {
     free( h ); io_close( s );
   } else {
     char * outbuf = malloc( size - written_size );
@@ -598,10 +598,10 @@ static void handle_udp4( int64 serversocket ) {
   ot_torrent *torrent;
   ot_hash    *hash = NULL;
   char        remoteip[4];
-  unsigned long *inpacket = (unsigned long*)static_inbuf;
-  unsigned long *outpacket = (unsigned long*)static_outbuf;
-  unsigned long  numwant, left, event;
-  uint16         port, remoteport;
+  ot_dword   *inpacket = (ot_dword*)static_inbuf;
+  ot_dword   *outpacket = (ot_dword*)static_outbuf;
+  ot_dword    numwant, left, event;
+  ot_word     port, remoteport;
   size_t      r, r_out;
 
   r = socket_recv4( serversocket, static_inbuf, 8192, remoteip, &remoteport);
@@ -627,8 +627,9 @@ static void handle_udp4( int64 serversocket ) {
       numwant = 200;
       /* We do only want to know, if it is zero */
       left  = inpacket[64/4] | inpacket[68/4];
+
       event = ntohl( inpacket[80/4] );
-      port  = *(unsigned short*)( static_inbuf + 96 );
+      port  = *(ot_word*)( static_inbuf + 96 );
       hash  = (ot_hash*)( static_inbuf + 16 );
 
       OT_SETIP( &peer, remoteip );

scan_urlencoded_query.c

@@ -73,7 +73,7 @@ ssize_t scan_fixed_ip( char *data, size_t len, unsigned char ip[4] ) {
 
   for( i=0; i<4; ++i ) {
     ssize_t j = scan_fixed_int( data, len, &u );
-    if( j == len ) return len;
+    if( j == (ssize_t)len ) return len;
     ip[i] = u;
     data += len - j;
     len = j;

trackerlogic.c

@@ -243,9 +243,9 @@ size_t return_peers_for_torrent( ot_torrent *torrent, size_t amount, char *reply
   if( is_tcp )
     r += sprintf( r, "d8:completei%zde10:incompletei%zde8:intervali%ie5:peers%zd:", seed_count, peer_count-seed_count, OT_CLIENT_REQUEST_INTERVAL_RANDOM, 6*amount );
   else {
-    *(unsigned long*)(r+0) = htonl( OT_CLIENT_REQUEST_INTERVAL_RANDOM );
-    *(unsigned long*)(r+4) = htonl( peer_count );
-    *(unsigned long*)(r+8) = htonl( seed_count );
+    *(ot_dword*)(r+0) = htonl( OT_CLIENT_REQUEST_INTERVAL_RANDOM );
+    *(ot_dword*)(r+4) = htonl( peer_count );
+    *(ot_dword*)(r+8) = htonl( seed_count );
     r += 12;
   }
 
@@ -357,7 +357,7 @@ size_t return_udp_scrape_for_torrent( ot_hash *hash, char *reply ) {
   if( !exactmatch ) {
     memset( reply, 0, 12);
   } else {
-    unsigned long *r = (unsigned long*) reply;
+    ot_dword *r = (ot_dword*) reply;
 
     for( i=0; i<OT_POOLS_COUNT; ++i ) {
       peers += torrent->peer_list->peers[i].size;
@@ -394,7 +394,7 @@ size_t return_tcp_scrape_for_torrent( ot_hash *hash, char *reply ) {
 /* Throw away old changeset */
 static void release_changeset( void ) {
   ot_byte **changeset_ptrs = (ot_byte**)(changeset.data);
-  int i;
+  size_t i;
 
   for( i = 0; i < changeset.size; ++i )
     free( changeset_ptrs[i] );
@@ -507,7 +507,8 @@ size_t return_changeset_for_tracker( char **reply ) {
 /* Clean up all torrents, remove timedout pools and
    torrents, also prepare new changeset */
 void clean_all_torrents( void ) {
-  int    i, j, k;
+  int    i, k;
+  size_t j;
   time_t time_now = NOW;
   size_t peers_count;
 
@@ -566,7 +567,7 @@ void clean_all_torrents( void ) {
   }
 }
 
-typedef struct { int val; ot_torrent * torrent; } ot_record;
+typedef struct { size_t val; ot_torrent * torrent; } ot_record;
 
 /* Fetches stats from tracker */
 size_t return_stats_for_tracker( char *reply, int mode ) {
@@ -611,11 +612,11 @@ size_t return_stats_for_tracker( char *reply, int mode ) {
     r += sprintf( r, "Top5 torrents by peers:\n" );
     for( idx=0; idx<5; ++idx )
       if( top5c[idx].torrent )
-        r += sprintf( r, "\t%i\t%s\n", top5c[idx].val, to_hex(top5c[idx].torrent->hash) );
+        r += sprintf( r, "\t%zd\t%s\n", top5c[idx].val, to_hex(top5c[idx].torrent->hash) );
     r += sprintf( r, "Top5 torrents by seeds:\n" );
     for( idx=0; idx<5; ++idx )
       if( top5s[idx].torrent )
-        r += sprintf( r, "\t%i\t%s\n", top5s[idx].val, to_hex(top5s[idx].torrent->hash) );
+        r += sprintf( r, "\t%zd\t%s\n", top5s[idx].val, to_hex(top5s[idx].torrent->hash) );
   } else {
     r += sprintf( r, "%zd\n%zd\nopentracker serving %zd torrents\nopentracker", peer_count, seed_count, torrent_count );
   }