(svn r19690) [1.0] -Backport from trunk:

- Fix: Desync when joining the game because of using the wrong variable (r19687)
- Fix: Truncated archives were not detected when using zlib 1.2.3. This also fixes zlib 1.2.4 compatibility, zlib 1.2.5 is bugfree (r19686)
- Fix: Towns with 3x3 and 2x2 road layouts could not expand (r19683)
- Fix: When joining a MP game all clients with company ID > 0 would be shown as if they were a spectator [FS#3775] (r19680)
- Fix: Client status was shown incorrect in the console (r19678)

src/network/core/tcp_game.h

@@ -85,6 +85,7 @@ enum ClientStatus {
 	STATUS_DONE_MAP,     ///< The client has downloaded the map
 	STATUS_PRE_ACTIVE,   ///< The client is catching up the delayed frames
 	STATUS_ACTIVE,       ///< The client is active within in the game
+	STATUS_END           ///< Must ALWAYS be on the end of this list!! (period)
 };
 
 class NetworkClientSocket;

src/network/network_client.cpp

@@ -453,8 +453,6 @@ DEF_CLIENT_RECEIVE_COMMAND(PACKET_SERVER_CLIENT_INFO)
 
 	if (MY_CLIENT->HasClientQuit()) return NETWORK_RECV_STATUS_CONN_LOST;
 
-	if (!Company::IsValidID(playas)) playas = COMPANY_SPECTATOR;
-
 	ci = NetworkFindClientInfoFromClientID(client_id);
 	if (ci != NULL) {
 		if (playas == ci->client_playas && strcmp(name, ci->client_name) != 0) {
@@ -467,7 +465,7 @@ DEF_CLIENT_RECEIVE_COMMAND(PACKET_SERVER_CLIENT_INFO)
 
 		/* Make sure we're in the company the server tells us to be in,
 		 * for the rare case that we get moved while joining. */
-		if (client_id == _network_own_client_id) SetLocalCompany(playas);
+		if (client_id == _network_own_client_id) SetLocalCompany(!Company::IsValidID(playas) ? COMPANY_SPECTATOR : playas);
 
 		ci->client_playas = playas;
 		strecpy(ci->client_name, name, lastof(ci->client_name));

src/network/network_content.cpp

@@ -373,19 +373,38 @@ static bool GunzipFile(const ContentInfo *ci)
 
 	if (fin == NULL || fout == NULL) {
 		ret = false;
-		goto exit;
-	}
-
-	byte buff[8192];
-	while (!gzeof(fin)) {
-		int read = gzread(fin, buff, sizeof(buff));
-		if (read < 0 || (size_t)read != fwrite(buff, 1, read, fout)) {
-			ret = false;
-			break;
+	} else {
+		byte buff[8192];
+		while (1) {
+			int read = gzread(fin, buff, sizeof(buff));
+			if (read == 0) {
+				/* If gzread() returns 0, either the end-of-file has been
+				 * reached or an underlying read error has occurred.
+				 *
+				 * gzeof() can't be used, because:
+				 * 1.2.5 - it is safe, 1 means 'everything was OK'
+				 * 1.2.3.5, 1.2.4 - 0 or 1 is returned 'randomly'
+				 * 1.2.3.3 - 1 is returned for truncated archive
+				 *
+				 * So we use gzerror(). When proper end of archive
+				 * has been reached, then:
+				 * errnum == Z_STREAM_END in 1.2.3.3,
+				 * errnum == 0 in 1.2.4 and 1.2.5 */
+				int errnum;
+				gzerror(fin, &errnum);
+				if (errnum != 0 && errnum != Z_STREAM_END) ret = false;
+				break;
+			}
+			if (read < 0 || (size_t)read != fwrite(buff, 1, read, fout)) {
+				/* If gzread() returns -1, there was an error in archive */
+				ret = false;
+				break;
+			}
+			/* DO NOT DO THIS! It will fail to detect broken archive with 1.2.3.3!
+			 * if (read < sizeof(buff)) break; */
 		}
 	}
 
-exit:
 	if (fin != NULL) {
 		/* Closes ftmp too! */
 		gzclose(fin);

src/network/network_server.cpp

@@ -1703,7 +1703,8 @@ void NetworkServerShowStatusToConsole()
 {
 	static const char * const stat_str[] = {
 		"inactive",
-		"authorizing",
+		"authorizing (server password)",
+		"authorizing (company password)",
 		"authorized",
 		"waiting",
 		"loading map",
@@ -1711,6 +1712,7 @@ void NetworkServerShowStatusToConsole()
 		"ready",
 		"active"
 	};
+	assert_compile(lengthof(stat_str) == STATUS_END);
 
 	NetworkClientSocket *cs;
 	FOR_ALL_CLIENT_SOCKETS(cs) {

src/openttd.cpp

@@ -1208,8 +1208,6 @@ void StateGameLoop()
 		CallWindowTickEvent();
 		NewsLoop();
 	} else {
-		CheckCaches();
-
 		if (_debug_desync_level > 2 && _date_fract == 0 && (_date & 0x1F) == 0) {
 			/* Save the desync savegame if needed. */
 			char name[MAX_PATH];
@@ -1217,6 +1215,8 @@ void StateGameLoop()
 			SaveOrLoad(name, SL_SAVE, AUTOSAVE_DIR);
 		}
 
+		CheckCaches();
+
 		/* All these actions has to be done from OWNER_NONE
 		 *  for multiplayer compatibility */
 		CompanyID old_company = _current_company;

src/road_type.h

@@ -66,9 +66,11 @@ enum RoadBits {
 	ROAD_S    = ROAD_SE | ROAD_SW,   ///< Road at the two southern edges
 	ROAD_W    = ROAD_NW | ROAD_SW,   ///< Road at the two western edges
 
-	ROAD_ALL  = ROAD_X  | ROAD_Y     ///< Full 4-way crossing
+	ROAD_ALL  = ROAD_X  | ROAD_Y,    ///< Full 4-way crossing
+
+	ROAD_END  = ROAD_ALL + 1         ///< Out-of-range roadbits, used for iterations
 };
 DECLARE_ENUM_AS_BIT_SET(RoadBits);
-template <> struct EnumPropsT<RoadBits> : MakeEnumPropsT<RoadBits, byte, ROAD_NONE, ROAD_ALL, ROAD_NONE, 4> {};
+template <> struct EnumPropsT<RoadBits> : MakeEnumPropsT<RoadBits, byte, ROAD_NONE, ROAD_END, ROAD_NONE, 4> {};
 
 #endif /* ROAD_TYPE_H */

src/train_cmd.cpp

@@ -481,7 +481,7 @@ int Train::GetCurrentMaxSpeed() const
 				int st_max_speed = 120;
 
 				int delta_v = this->cur_speed / (distance_to_go + 1);
-				if (this->max_speed > (this->cur_speed - delta_v)) {
+				if (max_speed > (this->cur_speed - delta_v)) {
 					st_max_speed = this->cur_speed - (delta_v / 10);
 				}