engine: platform: use nanosleep instead of usleep on POSIX

2026-08-05 11:35:05 +08:00 · 2025-02-11 21:31:25 +03:00
64 changed files with 1529 additions and 1684 deletions
--- a/.github/workflows/c-cpp.yml
+++ b/.github/workflows/c-cpp.yml
@@ -66,7 +66,7 @@ jobs:
            targetos: apple
            targetarch: amd64
    env:
-      SDL_VERSION: 2.32.0
+      SDL_VERSION: 2.30.12
      GH_CPU_ARCH: ${{ matrix.targetarch }}
      GH_CROSSCOMPILING: ${{ matrix.cross }}
    steps:
--- a/.gitmodules
+++ b/.gitmodules
@@ -27,13 +27,13 @@
 	url = https://github.com/FWGS/MultiEmulator
 [submodule "3rdparty/libogg/libogg"]
 	path = 3rdparty/libogg/libogg
-	url = https://github.com/xiph/ogg.git
+	url = https://gitlab.xiph.org/xiph/ogg.git
 [submodule "3rdparty/vorbis/vorbis-src"]
 	path = 3rdparty/vorbis/vorbis-src
-	url = https://github.com/xiph/vorbis.git
+	url = https://gitlab.xiph.org/xiph/vorbis.git
 [submodule "3rdparty/opusfile/opusfile"]
 	path = 3rdparty/opusfile/opusfile
-	url = https://github.com/xiph/opusfile.git
+	url = https://gitlab.xiph.org/xiph/opusfile.git
 [submodule "3rdparty/libbacktrace/libbacktrace"]
 	path = 3rdparty/libbacktrace/libbacktrace
 	url = https://github.com/ianlancetaylor/libbacktrace
--- a/3rdparty/extras/xash-extras
+++ b/3rdparty/extras/xash-extras
--- a/3rdparty/gl4es/gl4es
+++ b/3rdparty/gl4es/gl4es
--- a/3rdparty/mainui
+++ b/3rdparty/mainui
--- a/Documentation/opensource-mods.md
+++ b/Documentation/opensource-mods.md
@@ -38,9 +38,6 @@ Uploaded to github by Oleg Cherkasky - https://github.com/gunrunners-paradise/Ct
 ## Deathmatch Classic
 Available in Valve's Half-Life repository - https://github.com/ValveSoftware/halflife/tree/master/dmc

-## Delta Particles
-Available on ModDB - https://www.moddb.com/mods/half-life-delta/downloads/delta-particles-full-sources-maps-and-c-code
-
 ## Earth Special Forces
 Alpha 2.0 - https://www.gamers-desire.de/details/2830

--- a/Documentation/supported-mod-list.md
+++ b/Documentation/supported-mod-list.md
--- a/README.md
+++ b/README.md
@@ -1,7 +1,6 @@
 # Xash3D FWGS Engine <img align="right" width="128" height="128" src="https://github.com/FWGS/xash3d-fwgs/raw/master/game_launch/icon-xash-material.png" alt="Xash3D FWGS icon" />
-[![GitHub Actions Status](https://github.com/FWGS/xash3d-fwgs/actions/workflows/c-cpp.yml/badge.svg)](https://github.com/FWGS/xash3d-fwgs/actions/workflows/c-cpp.yml) [![FreeBSD Build Status](https://img.shields.io/cirrus/github/FWGS/xash3d-fwgs?label=freebsd%20build)](https://cirrus-ci.com/github/FWGS/xash3d-fwgs) \
-[![Discord Server](https://img.shields.io/discord/355697768582610945?logo=Discord&label=International%20Discord%20chat)](http://fwgsdiscord.mentality.rip/) [![Russian speakers Telegram Chat](https://img.shields.io/badge/Russian_speakers_Telegram_chat-gray?logo=Telegram)](https://t.me/flyingwithgauss) \
-[![Download Daily Build](https://img.shields.io/badge/downloads-testing-orange)](https://github.com/FWGS/xash3d-fwgs/releases/tag/continuous)
+[![builds.sr.ht status](https://builds.sr.ht/~a1batross/xash3d-fwgs.svg)](https://builds.sr.ht/~a1batross/xash3d-fwgs?) [![GitHub Actions Status](https://github.com/FWGS/xash3d-fwgs/actions/workflows/c-cpp.yml/badge.svg)](https://github.com/FWGS/xash3d-fwgs/actions/workflows/c-cpp.yml) [![FreeBSD Build Status](https://img.shields.io/cirrus/github/FWGS/xash3d-fwgs?label=freebsd%20build)](https://cirrus-ci.com/github/FWGS/xash3d-fwgs) [![Discord Server](https://img.shields.io/discord/355697768582610945.svg)](http://fwgsdiscord.mentality.rip/) \
+[![Download Stable](https://img.shields.io/badge/download-stable-yellow)](https://github.com/FWGS/xash3d-fwgs/releases/latest) [![Download Testing](https://img.shields.io/badge/downloads-testing-orange)](https://github.com/FWGS/xash3d-fwgs/releases/tag/continuous)

 Xash3D ([pronounced](https://ipa-reader.com/?text=ks%C9%91%CA%82) `[ksɑʂ]`) FWGS is a game engine, aimed to provide compatibility with Half-Life Engine and extend it, as well as to give game developers well known workflow.

--- a/android/app/CMakeLists.txt
+++ b/android/app/CMakeLists.txt
@@ -1,17 +1,17 @@
-cmake_minimum_required(VERSION 3.22)
+cmake_minimum_required(VERSION 3.6)

 # Only used to build Android project

 project(XASH_ANDROID)

 # armeabi-v7a requires cpufeatures library
-if(ANDROID)
-	include_directories(${ANDROID_NDK}/sources/android/cpufeatures)
-	add_library(cpufeatures ${ANDROID_NDK}/sources/android/cpufeatures/cpu-features.c)
-	target_link_libraries(cpufeatures dl)
-endif()
+include(AndroidNdkModules)
+android_ndk_import_module_cpufeatures()

-include(FindPython)
+find_package(PythonInterp 2.7 REQUIRED)
+
+get_filename_component(C_COMPILER_ID ${CMAKE_C_COMPILER} NAME_WE)
+get_filename_component(CXX_COMPILER_ID ${CMAKE_CXX_COMPILER} NAME_WE)

 if("${CMAKE_BUILD_TYPE}" STREQUAL "Debug")
 	set(BUILD_TYPE "debug")
@@ -20,20 +20,30 @@ else()
 	list(APPEND WAF_EXTRA_ARGS --enable-poly-opt --enable-lto)
 endif()

-if(ANDROID_ABI STREQUAL "x86")
-	# HACKHACK: I don't know why but engine gets built as 64-bit binary here
-	list(APPEND WAF_EXTRA_ARGS -4)
+if(CMAKE_SIZEOF_VOID_P MATCHES "8")
+	set(64BIT ON CACHE BOOL "" FORCE)
+	list(APPEND WAF_EXTRA_ARGS -8) # only required for x86 when testing this cmakelist under linux
 endif()

 set(CMAKE_VERBOSE_MAKEFILE ON)

+set(WAF_CC "${CMAKE_C_COMPILER} --target=${CMAKE_C_COMPILER_TARGET}")
+set(WAF_CXX "${CMAKE_CXX_COMPILER} --target=${CMAKE_CXX_COMPILER_TARGET}")

 # not cleanest way to get upper directory
 set(ENGINE_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../../")

-set(WAF_CC "${CMAKE_C_COMPILER} --target=${CMAKE_C_COMPILER_TARGET}")
-set(WAF_CXX "${CMAKE_CXX_COMPILER} --target=${CMAKE_CXX_COMPILER_TARGET}")
-set(WAF ${Python_EXECUTABLE} ${ENGINE_SOURCE_DIR}waf -t ${ENGINE_SOURCE_DIR} -o ${CMAKE_CURRENT_BINARY_DIR}/xash3d-fwgs)
+execute_process(
+	COMMAND ${CMAKE_COMMAND} -E env
+	CC=${WAF_CC} CXX=${WAF_CXX}
+	AR=${CMAKE_AR} STRIP=${CMAKE_STRIP}
+	${PYTHON_EXECUTABLE} waf configure -T ${BUILD_TYPE} -o "${CMAKE_CURRENT_BINARY_DIR}/xash3d-fwgs" ${WAF_EXTRA_ARGS} cmake
+	--check-c-compiler=${C_COMPILER_ID} --check-cxx-compiler=${CXX_COMPILER_ID}
+	-s "${ENGINE_SOURCE_DIR}/SDL" --skip-sdl2-sanity-check --enable-bundled-deps
+	WORKING_DIRECTORY "${ENGINE_SOURCE_DIR}"
+)
+
+add_subdirectory("${ENGINE_SOURCE_DIR}/3rdparty/hlsdk-portable" hlsdk-portable)

 # try to build minimal SDL. Enable features as we're gonna use them
 set(SDL_RENDER OFF)
@@ -46,50 +56,5 @@ set(SDL_VULKAN OFF)
 set(SDL_OFFSCREEN OFF)
 set(SDL_STATIC OFF)
 add_subdirectory("${ENGINE_SOURCE_DIR}/3rdparty/SDL" SDL)
-
-include(ExternalProject)
-
-# gradle passes backslashes to cmake, how does this even work for everybody else?
-string(REPLACE "\\" "/" CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_LIBRARY_OUTPUT_DIRECTORY})
-
-ExternalProject_Add(
-	Xash3DFWGS
-	SOURCE_DIR ${ENGINE_SOURCE_DIR}
-	INSTALL_DIR ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}
-	BUILD_IN_SOURCE TRUE
-	DEPENDS SDL2
-	BUILD_ALWAYS TRUE
-	LOG_CONFIGURE TRUE
-	LOG_BUILD TRUE
-	LOG_INSTALL TRUE
-	LOG_OUTPUT_ON_FAILURE TRUE
-	LOG_MERGED_STDOUTERR TRUE
-
-#	USES_TERMINAL_CONFIGURE TRUE
-#	USES_TERMINAL_BUILD TRUE
-#	USES_TERMINAL_INSTALL TRUE
-
-	# NOTE: setting up WAFLOCK is important to avoid possible race conditions
-	CONFIGURE_COMMAND ${CMAKE_COMMAND} -E env
-		ANDROID_NDK=${ANDROID_NDK}
-		BUILD_CMAKE_LIBRARY_OUTPUT_DIRECTORY=${CMAKE_LIBRARY_OUTPUT_DIRECTORY}
-		WAFLOCK=.lock-waf_android_${ANDROID_ABI}_build
-		${WAF} configure -T ${BUILD_TYPE} --android=${ANDROID_ABI},,${CMAKE_SYSTEM_VERSION}
-		-s "${ENGINE_SOURCE_DIR}/3rdparty/SDL" --enable-bundled-deps
-
-	BUILD_COMMAND ${CMAKE_COMMAND} -E env
-		WAFLOCK=.lock-waf_android_${ANDROID_ABI}_build
-		${WAF} build -v
-
-	INSTALL_COMMAND ${CMAKE_COMMAND} -E env
-		WAFLOCK=.lock-waf_android_${ANDROID_ABI}_build
-		${WAF} install --destdir=${CMAKE_LIBRARY_OUTPUT_DIRECTORY}
-)
-
-add_subdirectory("${ENGINE_SOURCE_DIR}/3rdparty/hlsdk-portable" hlsdk-portable)
-
-# a1ba: without this, xash3d target will be ignored as nothing depends on it
-add_dependencies(client Xash3DFWGS)
-add_dependencies(server Xash3DFWGS)
-
-
+add_subdirectory("${ENGINE_SOURCE_DIR}/" xash3d-fwgs)
+add_subdirectory("${ENGINE_SOURCE_DIR}/3rdparty/mainui" mainui)
--- a/android/app/build.gradle.kts
+++ b/android/app/build.gradle.kts
@@ -9,7 +9,7 @@ plugins {

 android {
    namespace = "su.xash.engine"
-    ndkVersion = "28.0.13004108"
+    ndkVersion = "27.2.12479018"

    defaultConfig {
        applicationId = "su.xash"
--- a/android/gradle.properties
+++ b/android/gradle.properties
@@ -20,7 +20,4 @@ kotlin.code.style=official
 # Enables namespacing of each library's R class so that its R class includes only the
 # resources declared in the library itself and none from the library's dependencies,
 # thereby reducing the size of the R class for that library
-android.nonTransitiveRClass=true
-
-# Enable verbose output for CMake
-android.native.buildOutput=verbose
+android.nonTransitiveRClass=true
--- a/common/port.h
+++ b/common/port.h
@@ -86,4 +86,8 @@ GNU General Public License for more details.
 #include <string.h>
 #include <limits.h>

+#if defined XASH_SDL && !defined REF_DLL
+#include <SDL.h>
+#endif
+
 #endif // PORT_H
--- a/common/xash3d_types.h
+++ b/common/xash3d_types.h
@@ -13,19 +13,13 @@
 #endif // _WIN32

 #include <sys/types.h> // off_t
-#ifdef STDINT_H
 #include STDINT_H
-#else // !STDINT_H
-#include <stdint.h>
-#endif // !STDINT_H
 #include <assert.h>

 typedef uint8_t  byte;
 typedef float    vec_t;
 typedef vec_t    vec2_t[2];
-#ifndef vec3_t // SDK renames it to Vector
 typedef vec_t    vec3_t[3];
-#endif
 typedef vec_t    vec4_t[4];
 typedef vec_t    quat_t[4];
 typedef byte     rgba_t[4];	// unsigned byte colorpack
@@ -50,7 +44,6 @@ typedef int qboolean;

 #define BIT( n )		( 1U << ( n ))
 #define BIT64( n )		( 1ULL << ( n ))
-
 #define SetBits( iBitVector, bits )	((iBitVector) = (iBitVector) | (bits))
 #define ClearBits( iBitVector, bits )	((iBitVector) = (iBitVector) & ~(bits))
 #define FBitSet( iBitVector, bit )	((iBitVector) & (bit))
@@ -67,8 +60,6 @@ typedef int qboolean;
 #define IsColorString( p )	( p && *( p ) == '^' && *(( p ) + 1) && *(( p ) + 1) >= '0' && *(( p ) + 1 ) <= '9' )
 #define ColorIndex( c )	((( c ) - '0' ) & 7 )

-#undef EXPORT
-
 #if defined( __GNUC__ )
 	#if defined( __i386__ )
 		#define EXPORT         __attribute__(( visibility( "default" ), force_align_arg_pointer ))
--- a/engine/client/cl_font.c
+++ b/engine/client/cl_font.c
@@ -173,7 +173,7 @@ static int CL_CalcTabStop( const cl_font_t *font, int x )
 	return stop;
 }

-int CL_DrawCharacter( float x, float y, int number, const rgba_t color, cl_font_t *font, int flags )
+int CL_DrawCharacter( float x, float y, int number, rgba_t color, cl_font_t *font, int flags )
 {
 	wrect_t *rc;
 	float w, h;
@@ -231,7 +231,7 @@ int CL_DrawCharacter( float x, float y, int number, const rgba_t color, cl_font_
 	return font->charWidths[number];
 }

-int CL_DrawString( float x, float y, const char *s, const rgba_t color, cl_font_t *font, int flags )
+int CL_DrawString( float x, float y, const char *s, rgba_t color, cl_font_t *font, int flags )
 {
 	rgba_t current_color;
 	int draw_len = 0;
@@ -287,7 +287,7 @@ int CL_DrawString( float x, float y, const char *s, const rgba_t color, cl_font_
 	return draw_len;
 }

-int CL_DrawStringf( cl_font_t *font, float x, float y, const rgba_t color, int flags, const char *fmt, ... )
+int CL_DrawStringf( cl_font_t *font, float x, float y, rgba_t color, int flags, const char *fmt, ... )
 {
 	va_list va;
 	char buf[MAX_VA_STRING];
--- a/engine/client/cl_game.c
+++ b/engine/client/cl_game.c
@@ -13,10 +13,6 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 */

-#if XASH_SDL
-#include <SDL.h> // SDL_GetWindowPosition
-#endif // XASH_SDL
-
 #include "common.h"
 #include "client.h"
 #include "const.h"
--- a/engine/client/cl_main.c
+++ b/engine/client/cl_main.c
@@ -68,7 +68,7 @@ CVAR_DEFINE_AUTO( hud_scale_minimal_width, "640", FCVAR_ARCHIVE|FCVAR_LATCH, "if
 CVAR_DEFINE_AUTO( cl_solid_players, "1", 0, "Make all players not solid (can't traceline them)" );
 CVAR_DEFINE_AUTO( cl_updaterate, "20", FCVAR_USERINFO|FCVAR_ARCHIVE, "refresh rate of server messages" );
 CVAR_DEFINE_AUTO( cl_showevents, "0", FCVAR_ARCHIVE, "show events playback" );
-CVAR_DEFINE_AUTO( cl_cmdrate, "30", FCVAR_ARCHIVE, "Max number of command packets sent to server per second" );
+CVAR_DEFINE_AUTO( cl_cmdrate, "60", FCVAR_ARCHIVE, "Max number of command packets sent to server per second" );
 CVAR_DEFINE( cl_interp, "ex_interp", "0.1", FCVAR_ARCHIVE | FCVAR_FILTERABLE, "Interpolate object positions starting this many seconds in past" );
 CVAR_DEFINE_AUTO( cl_nointerp, "0", 0, "disable interpolation of entities and players" );
 static CVAR_DEFINE_AUTO( cl_dlmax, "0", FCVAR_USERINFO|FCVAR_ARCHIVE, "max allowed outcoming fragment size" );
@@ -94,7 +94,7 @@ static CVAR_DEFINE_AUTO( name, username, FCVAR_USERINFO|FCVAR_ARCHIVE|FCVAR_PRIN
 static CVAR_DEFINE_AUTO( model, "", FCVAR_USERINFO|FCVAR_ARCHIVE|FCVAR_FILTERABLE, "player model ('player' is a singleplayer model)" );
 static CVAR_DEFINE_AUTO( topcolor, "0", FCVAR_USERINFO|FCVAR_ARCHIVE|FCVAR_FILTERABLE, "player top color" );
 static CVAR_DEFINE_AUTO( bottomcolor, "0", FCVAR_USERINFO|FCVAR_ARCHIVE|FCVAR_FILTERABLE, "player bottom color" );
-CVAR_DEFINE_AUTO( rate, "25000", FCVAR_USERINFO|FCVAR_ARCHIVE|FCVAR_FILTERABLE, "player network rate" );
+CVAR_DEFINE_AUTO( rate, "3500", FCVAR_USERINFO|FCVAR_ARCHIVE|FCVAR_FILTERABLE, "player network rate" );

 static CVAR_DEFINE_AUTO( cl_ticket_generator, "revemu2013", FCVAR_ARCHIVE, "you wouldn't steal a car" );

@@ -1183,11 +1183,7 @@ Returns bandwidth test fragment size
 */
 static int CL_GetTestFragmentSize( void )
 {
-	// const int fragmentSizes[CL_TEST_RETRIES] = { 64000, 32000, 10666, 5200, 1400 };
-
-	// it turns out, even if we pass the bandwidth test, it doesn't mean we can use such large fragments
-	// as a temporary solution, use smaller fragment sizes
-	const int fragmentSizes[CL_TEST_RETRIES] = { 1400, 1200, 1000, 800, 508 };
+	const int fragmentSizes[CL_TEST_RETRIES] = { 64000, 32000, 10666, 5200, 1400 };
 	if( cls.connect_retry >= 0 && cls.connect_retry < CL_TEST_RETRIES )
 		return bound( FRAGMENT_MIN_SIZE, fragmentSizes[cls.connect_retry], FRAGMENT_MAX_SIZE );
 	else
--- a/engine/client/cl_mobile.c
+++ b/engine/client/cl_mobile.c
@@ -92,11 +92,6 @@ static char *pfnParseFileSafe( char *data, char *buf, const int size, unsigned i
 	return COM_ParseFileSafe( data, buf, size, flags, len, NULL );
 }

-static void GAME_EXPORT pfnSetCustomClientID( const char *id )
-{
-	// deprecated
-}
-
 static const mobile_engfuncs_t gMobileEngfuncs =
 {
 	MOBILITY_API_VERSION,
@@ -111,7 +106,7 @@ static const mobile_engfuncs_t gMobileEngfuncs =
 	pfnDrawScaledCharacter,
 	Sys_Warn,
 	Sys_GetNativeObject,
-	pfnSetCustomClientID,
+	ID_SetCustomClientID,
 	pfnParseFileSafe
 };

--- a/engine/client/cl_parse_gs.c
+++ b/engine/client/cl_parse_gs.c
@@ -83,10 +83,7 @@ static void CL_ParseNewMovevars( sizebuf_t *msg )
 		R_SetupSky( clgame.movevars.skyName );

 	clgame.oldmovevars = clgame.movevars;
-
-	// FIXME: set world wave height when entities will be allocated
-	if( clgame.entities )
-		clgame.entities->curstate.scale = clgame.movevars.waveHeight;
+	clgame.entities->curstate.scale = clgame.movevars.waveHeight;

 	// keep features an actual!
 	clgame.oldmovevars.features = clgame.movevars.features = host.features;
--- a/engine/client/client.h
+++ b/engine/client/client.h
@@ -807,11 +807,11 @@ qboolean Con_LoadFixedWidthFont( const char *fontname, cl_font_t *font, float sc
 qboolean Con_LoadVariableWidthFont( const char *fontname, cl_font_t *font, float scale, convar_t *rendermode, uint texFlags );
 void CL_FreeFont( cl_font_t *font );
 void CL_SetFontRendermode( cl_font_t *font );
-int CL_DrawCharacter( float x, float y, int number, const rgba_t color, cl_font_t *font, int flags );
-int CL_DrawString( float x, float y, const char *s, const rgba_t color, cl_font_t *font, int flags );
+int CL_DrawCharacter( float x, float y, int number, rgba_t color, cl_font_t *font, int flags );
+int CL_DrawString( float x, float y, const char *s, rgba_t color, cl_font_t *font, int flags );
 void CL_DrawCharacterLen( cl_font_t *font, int number, int *width, int *height );
 void CL_DrawStringLen( cl_font_t *font, const char *s, int *width, int *height, int flags );
-int CL_DrawStringf( cl_font_t *font, float x, float y, const rgba_t color, int flags, const char *fmt, ... ) FORMAT_CHECK( 6 );
+int CL_DrawStringf( cl_font_t *font, float x, float y, rgba_t color, int flags, const char *fmt, ... ) FORMAT_CHECK( 6 );


 //
@@ -844,21 +844,19 @@ void CL_EnableScissor( scissor_state_t *scissor, int x, int y, int width, int he
 void CL_DisableScissor( scissor_state_t *scissor );
 qboolean CL_Scissor( const scissor_state_t *scissor, float *x, float *y, float *width, float *height, float *u0, float *v0, float *u1, float *v1 );

-static inline cl_entity_t *CL_EDICT_NUM( int index )
+static inline cl_entity_t *CL_EDICT_NUM( int n )
 {
-	if( !clgame.entities ) // not in game yet
+	if( !clgame.entities )
 	{
 		Host_Error( "%s: clgame.entities is NULL\n", __func__ );
 		return NULL;
 	}

-	if( index < 0 || index >= clgame.maxEntities )
-	{
-		Host_Error( "%s: bad number %i\n", __func__, index );
-		return NULL;
-	}
+	if(( n >= 0 ) && ( n < clgame.maxEntities ))
+		return clgame.entities + n;

-	return clgame.entities + index;
+	Host_Error( "%s: bad number %i\n", __func__, n );
+	return NULL;
 }

 static inline cl_entity_t *CL_GetEntityByIndex( int index )
@@ -869,7 +867,10 @@ static inline cl_entity_t *CL_GetEntityByIndex( int index )
 	if( index < 0 || index >= clgame.maxEntities )
 		return NULL;

-	return clgame.entities + index;
+	if( index == 0 )
+		return clgame.entities;
+
+	return CL_EDICT_NUM( index );
 }

 static inline model_t *CL_ModelHandle( int modelindex )
@@ -879,7 +880,7 @@ static inline model_t *CL_ModelHandle( int modelindex )

 static inline qboolean CL_IsThirdPerson( void )
 {
-	return clgame.dllFuncs.CL_IsThirdPerson();
+	return clgame.dllFuncs.CL_IsThirdPerson() ? true : false;
 }

 static inline cl_entity_t *CL_GetLocalPlayer( void )
@@ -1107,7 +1108,7 @@ int Con_UtfMoveRight( char *str, int pos, int length );
 void Con_DefaultColor( int r, int g, int b, qboolean gameui );
 cl_font_t *Con_GetCurFont( void );
 cl_font_t *Con_GetFont( int num );
-int Con_DrawString( int x, int y, const char *string, const rgba_t setColor ); // legacy, use cl_font.c
+int Con_DrawString( int x, int y, const char *string, rgba_t setColor ); // legacy, use cl_font.c
 void GAME_EXPORT Con_DrawStringLen( const char *pText, int *length, int *height ); // legacy, use cl_font.c
 void Con_CharEvent( int key );
 void Key_Console( int key );
@@ -1214,6 +1215,7 @@ void OSK_Draw( void );
 //
 void ID_Init( void );
 const char *ID_GetMD5( void );
+void GAME_EXPORT ID_SetCustomClientID( const char *id );

 extern rgba_t g_color_table[8];
 extern triangleapi_t gTriApi;
--- a/engine/client/console.c
+++ b/engine/client/console.c
@@ -759,7 +759,7 @@ Con_DrawString
 client version of routine
 ====================
 */
-int Con_DrawString( int x, int y, const char *string, const rgba_t setColor )
+int Con_DrawString( int x, int y, const char *string, rgba_t setColor )
 {
 	return CL_DrawString( x, y, string, setColor, con.curFont, FONT_DRAW_UTF8 );
 }
@@ -843,14 +843,11 @@ If no console is visible, the notify window will pop up.
 */
 void Con_Print( const char *txt )
 {
-	static qboolean cr_pending = false;
-	static qboolean colorstring = false;
-	static char buf[MAX_PRINT_MSG];
-	static int  lastlength = 0;
-	static int  bufpos = 0;
-	static int  charpos = 0;
-
-	qboolean norefresh = false;
+	static int	cr_pending = 0;
+	static char	buf[MAX_PRINT_MSG];
+	qboolean		norefresh = false;
+	static int	lastlength = 0;
+	static int	bufpos = 0;
 	int		c, mask = 0;

 	// client not running
@@ -876,7 +873,7 @@ void Con_Print( const char *txt )
 		if( cr_pending )
 		{
 			Con_DeleteLastLine();
-			cr_pending = false;
+			cr_pending = 0;
 		}
 		c = *txt;

@@ -889,42 +886,23 @@ void Con_Print( const char *txt )
 			{
 				Con_AddLine( buf, bufpos, true );
 				lastlength = CON_LINES_LAST().length;
-				cr_pending = true;
+				cr_pending = 1;
 				bufpos = 0;
-				charpos = 0;
 			}
 			break;
 		case '\n':
 			Con_AddLine( buf, bufpos, true );
 			lastlength = CON_LINES_LAST().length;
 			bufpos = 0;
-			charpos = 0;
 			break;
 		default:
+
 			buf[bufpos++] = c | mask;
-
-			if( IsColorString( txt ))
-			{
-				// first color string character
-				colorstring = true;
-			}
-			else if( colorstring )
-			{
-				// second color string character
-				colorstring = false;
-			}
-			else
-			{
-				// not a color string, move char counter
-				charpos++;
-			}
-
-			if(( bufpos >= sizeof( buf ) - 1 ) || charpos >= ( con.linewidth - 1 ))
+			if(( bufpos >= sizeof( buf ) - 1 ) || bufpos >= ( con.linewidth - 1 ))
 			{
 				Con_AddLine( buf, bufpos, true );
 				lastlength = CON_LINES_LAST().length;
 				bufpos = 0;
-				charpos = 0;
 			}
 			break;
 		}
@@ -940,7 +918,6 @@ void Con_Print( const char *txt )
 			Con_AddLine( buf, bufpos, lastlength != 0 );
 			lastlength = 0;
 			bufpos = 0;
-			charpos = 0;
 		}

 		// pump messages to avoid window hanging
@@ -1490,16 +1467,6 @@ Handles history and console scrollback
 */
 void Key_Console( int key )
 {
-	// exit the console by pressing MINUS on NSwitch
-	// or both Back(Select)/Start buttons for everyone else
-	if( key == K_BACK_BUTTON || key == K_START_BUTTON || key == K_ESCAPE )
-	{
-		if( cls.state == ca_active && !cl.background )
-			Key_SetKeyDest( key_game );
-		else UI_SetActiveMenu( true );
-		return;
-	}
-
 	// ctrl-L clears screen
 	if( key == 'l' && Key_IsDown( K_CTRL ))
 	{
@@ -1608,6 +1575,16 @@ void Key_Console( int key )
 		return;
 	}

+	// exit the console by pressing MINUS on NSwitch
+	// or both Back(Select)/Start buttons for everyone else
+	if( key == K_BACK_BUTTON || key == K_START_BUTTON )
+	{
+		if( cls.state == ca_active && !cl.background )
+			Key_SetKeyDest( key_game );
+		else UI_SetActiveMenu( true );
+		return;
+	}
+
 	// pass to the normal editline routine
 	Field_KeyDownEvent( &con.input, key );
 }
@@ -2031,7 +2008,7 @@ void Con_DrawVersion( void )
 	int	start, height = refState.height;
 	string	curbuild;

-	if( !scr_drawversion.value )
+	if( !scr_drawversion.value || CL_IsDevOverviewMode() == 2 || net_graph.value )
 		return;

 	if( cls.key_dest == key_menu )
@@ -2043,9 +2020,6 @@ void Con_DrawVersion( void )
 	{
 		qboolean draw_version;

-		if( CL_IsDevOverviewMode() == 2 || net_graph.value )
-			return;
-
 		draw_version = cls.scrshot_action == scrshot_normal
 			|| cls.scrshot_action == scrshot_snapshot
 			|| host.force_draw_version_time > host.realtime;
--- a/engine/client/identification.c
+++ b/engine/client/identification.c
@@ -19,8 +19,8 @@ GNU General Public License for more details.
 #if !XASH_WIN32
 #include <dirent.h>
 #endif
-
 static char id_md5[33];
+static char id_customid[MAX_STRING];

 /*
 ==========================================================
@@ -590,9 +590,25 @@ static void ID_Check( void )

 const char *ID_GetMD5( void )
 {
+	if( id_customid[0] )
+		return id_customid;
 	return id_md5;
 }

+/*
+===============
+ID_SetCustomClientID
+
+===============
+*/
+void GAME_EXPORT ID_SetCustomClientID( const char *id )
+{
+	if( !id )
+		return;
+
+	Q_strncpy( id_customid, id, sizeof( id_customid  ) );
+}
+
 void ID_Init( void )
 {
 	MD5Context_t hash = { 0 };
--- a/engine/client/in_touch.c
+++ b/engine/client/in_touch.c
--- a/engine/client/input.c
+++ b/engine/client/input.c
@@ -205,10 +205,9 @@ void IN_ToggleClientMouse( int newstate, int oldstate )
 	}
 }

-void IN_SetRelativeMouseMode( qboolean set )
+static void IN_SetRelativeMouseMode( qboolean set, qboolean verbose )
 {
 	static qboolean s_bRawInput;
-	qboolean verbose = m_grab_debug.value ? true : false;

 	if( set && !s_bRawInput )
 	{
@@ -232,10 +231,9 @@ void IN_SetRelativeMouseMode( qboolean set )
 	}
 }

-void IN_SetMouseGrab( qboolean set )
+static void IN_SetMouseGrab( qboolean set, qboolean verbose )
 {
 	static qboolean s_bMouseGrab;
-	qboolean verbose = m_grab_debug.value ? true : false;

 	if( set && !s_bMouseGrab )
 	{
@@ -260,7 +258,7 @@ void IN_SetMouseGrab( qboolean set )

 static void IN_CheckMouseState( qboolean active )
 {
-	qboolean use_raw_input;
+	qboolean use_raw_input, verbose;

 #if XASH_WIN32
 	use_raw_input = ( m_rawinput.value && clgame.client_dll_uses_sdl ) || clgame.dllFuncs.pfnLookEvent != NULL;
@@ -268,18 +266,20 @@ static void IN_CheckMouseState( qboolean active )
 	use_raw_input = true; // always use SDL code
 #endif

+	verbose = m_grab_debug.value ? true : false;
+
 	if( m_ignore.value )
 		active = false;

 	if( active && use_raw_input && !host.mouse_visible && cls.state == ca_active )
-		IN_SetRelativeMouseMode( true );
+		IN_SetRelativeMouseMode( true, verbose );
 	else
-		IN_SetRelativeMouseMode( false );
+		IN_SetRelativeMouseMode( false, verbose );

 	if( active && !host.mouse_visible && cls.state == ca_active )
-		IN_SetMouseGrab( true );
+		IN_SetMouseGrab( true, verbose );
 	else
-		IN_SetMouseGrab( false );
+		IN_SetMouseGrab( false, verbose );
 }

 /*
@@ -332,7 +332,7 @@ static void IN_MouseMove( void )
 	if( !in_mouseinitialized )
 		return;

-	if( Touch_WantVisibleCursor( ))
+	if( Touch_Emulated( ))
 	{
 		// touch emulation overrides all input
 		Touch_KeyEvent( 0, 0 );
@@ -363,7 +363,7 @@ void IN_MouseEvent( int key, int down )
 	else ClearBits( in_mstate, BIT( key ));

 	// touch emulation overrides all input
-	if( Touch_WantVisibleCursor( ))
+	if( Touch_Emulated( ))
 	{
 		Touch_KeyEvent( K_MOUSE1 + key, down );
 	}
--- a/engine/client/input.h
+++ b/engine/client/input.h
@@ -46,9 +46,6 @@ uint IN_CollectInputDevices( void );
 void IN_LockInputDevices( qboolean lock );
 void IN_EngineAppendMove( float frametime, usercmd_t *cmd, qboolean active );

-void IN_SetRelativeMouseMode( qboolean set );
-void IN_SetMouseGrab( qboolean set );
-
 extern convar_t m_yaw;
 extern convar_t m_pitch;
 //
@@ -77,6 +74,7 @@ void Touch_ResetDefaultButtons( void );
 int IN_TouchEvent( touchEventType type, int fingerID, float x, float y, float dx, float dy );
 void Touch_KeyEvent( int key, int down );
 qboolean Touch_WantVisibleCursor( void );
+qboolean Touch_Emulated( void );
 void Touch_NotifyResize( void );

 //
--- a/engine/client/keys.c
+++ b/engine/client/keys.c
@@ -726,8 +726,18 @@ void GAME_EXPORT Key_Event( int key, int down )
 				return; // handled in client.dll
 			}
 			break;
-		default:
-			break;
+		case key_message:
+			Key_Message( key );
+			return;
+		case key_console:
+			if( cls.state == ca_active && !cl.background )
+				Key_SetKeyDest( key_game );
+			else UI_SetActiveMenu( true );
+			return;
+		case key_menu:
+			UI_KeyEvent( key, true );
+			return;
+		default:	return;
 		}
 	}

--- a/engine/common/filesystem_engine.c
+++ b/engine/common/filesystem_engine.c
@@ -16,10 +16,6 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 */

-#if XASH_SDL
-#include <SDL.h> // SDL_GetBasePath
-#endif
-
 #include <errno.h>
 #include "common.h"
 #include "library.h"
--- a/engine/common/host.c
+++ b/engine/common/host.c
@@ -140,8 +140,7 @@ static void Sys_PrintUsage( const char *exename )

 "\nCommon options:\n"
 	O("-dev [level]       ", "set log verbosity 0-2")
-	O("-log [file name]   ", "write log to \"engine.log\" or [file name] if specified")
-	O("-logtime           ", "enable writing timestamps to the log file")
+	O("-log               ", "write log to \"engine.log\"")
 	O("-nowriteconfig     ", "disable config save")
 	O("-noch              ", "disable crashhandler")
 #if XASH_WIN32 // !!!!
@@ -698,17 +697,17 @@ static qboolean Host_Autosleep( double dt, double scale )
 		static double timewindow; // allocate a time window for sleeps
 		static int counter; // for debug
 		static double realsleeptime;
-		const double sleeptime = sleep * 0.000001;
+		const double sleeptime = sleep * 0.001;

 		if( dt < targetframetime * scale )
 		{
 			// if we have allocated time window, try to sleep
 			if( timewindow > realsleeptime )
 			{
-				// Platform_Sleep isn't guaranteed to sleep an exact amount of microseconds
+				// Platform_Sleep isn't guaranteed to sleep an exact amount of milliseconds
 				// so we measure the real sleep time and use it to decrease the window
 				double t1 = Sys_DoubleTime(), t2;
-				Platform_NanoSleep( sleep * 1000 ); // in usec!
+				Platform_Sleep( sleep ); // in msec!
 				t2 = Sys_DoubleTime();
 				realsleeptime = t2 - t1;

--- a/engine/common/net_ws.c
+++ b/engine/common/net_ws.c
@@ -721,6 +721,39 @@ qboolean NET_CompareBaseAdr( const netadr_t a, const netadr_t b )
 	return false;
 }

+/*
+====================
+NET_CompareClassBAdr
+
+Compare local masks
+====================
+*/
+qboolean NET_CompareClassBAdr( const netadr_t a, const netadr_t b )
+{
+	netadrtype_t type_a = NET_NetadrType( &a );
+	netadrtype_t type_b = NET_NetadrType( &b );
+
+	if( type_a != type_b )
+		return false;
+
+	if( type_a == NA_LOOPBACK )
+		return true;
+
+	if( type_a == NA_IP )
+	{
+		if( a.ip[0] == b.ip[0] && a.ip[1] == b.ip[1] )
+			return true;
+	}
+
+	// NOTE: we don't check for IPv6 here
+	// this check is very dumb and only used for LAN restriction
+	// Actual check is in IsReservedAdr
+
+	// for real mask compare use NET_CompareAdrByMask
+
+	return false;
+}
+
 /*
 ====================
 NET_CompareAdrByMask
@@ -1512,7 +1545,7 @@ static int NET_SendLong( netsrc_t sock, int net_socket, const char *buf, size_t
 				total_sent += size;
 			len -= size;
 			packet_number++;
-			Platform_NanoSleep( 100 * 1000 );
+			Platform_Sleep( 1 );
 		}

 		return total_sent;
@@ -2027,7 +2060,6 @@ void NET_Init( void )
 	Cvar_RegisterVariable( &net_fakelag );
 	Cvar_RegisterVariable( &net_fakeloss );
 	Cvar_RegisterVariable( &net_resolve_debug );
-	Cvar_RegisterVariable( &net_clockwindow );

 	Q_snprintf( cmd, sizeof( cmd ), "%i", PORT_SERVER );
 	Cvar_FullSet( "hostport", cmd, FCVAR_READ_ONLY );
--- a/engine/common/net_ws.h
+++ b/engine/common/net_ws.h
@@ -64,6 +64,7 @@ void NET_Config( qboolean net_enable, qboolean changeport );
 const char *NET_AdrToString( const netadr_t a ) RETURNS_NONNULL;
 const char *NET_BaseAdrToString( const netadr_t a ) RETURNS_NONNULL;
 qboolean NET_IsReservedAdr( netadr_t a );
+qboolean NET_CompareClassBAdr( const netadr_t a, const netadr_t b );
 qboolean NET_StringToAdr( const char *string, netadr_t *adr );
 qboolean NET_StringToFilterAdr( const char *s, netadr_t *adr, uint *prefixlen );
 net_gai_state_t NET_StringToAdrNB( const char *string, netadr_t *adr, qboolean v6only );
--- a/engine/common/sys_con.c
+++ b/engine/common/sys_con.c
@@ -31,14 +31,15 @@ GNU General Public License for more details.
 #define XASH_COLORIZE_CONSOLE 0
 #endif

-static struct logdata_s {
-	char     title[64];
-	qboolean log_active;
-	qboolean log_time;
-	char     log_path[MAX_SYSPATH];
-	FILE     *logfile;
-	int      logfileno;
-} s_ld;
+typedef struct {
+	char		title[64];
+	qboolean		log_active;
+	char		log_path[MAX_SYSPATH];
+	FILE		*logfile;
+	int 		logfileno;
+} LogData;
+
+static LogData s_ld;

 void Sys_DestroyConsole( void )
 {
@@ -77,19 +78,14 @@ static void Sys_FlushLogfile( void )

 void Sys_InitLog( void )
 {
-	const char *mode;
+	const char	*mode;

 	if( Sys_CheckParm( "-log" ))
 	{
-		if( !Sys_GetParmFromCmdLine( "-log", s_ld.log_path ) || !isalnum( s_ld.log_path[0] ))
-			Q_strncpy( s_ld.log_path, "engine.log", sizeof( s_ld.log_path ));
-
-		COM_DefaultExtension( s_ld.log_path, ".log", sizeof( s_ld.log_path ));
 		s_ld.log_active = true;
+		Q_strncpy( s_ld.log_path, "engine.log", sizeof( s_ld.log_path ));
 	}

-	s_ld.log_time = Sys_CheckParm( "-logtime" );
-
 	if( host.change_game && host.type != HOST_DEDICATED )
 		mode = "a";
 	else mode = "w";
@@ -105,7 +101,7 @@ void Sys_InitLog( void )

 		if ( !s_ld.logfile )
 		{
-			Con_Reportf( S_ERROR "%s: can't create log file %s: %s\n", __func__, s_ld.log_path, strerror( errno ));
+			Con_Reportf( S_ERROR  "Sys_InitLog: can't create log file %s: %s\n", s_ld.log_path, strerror( errno ));
 			return;
 		}

@@ -299,23 +295,17 @@ void Sys_PrintLog( const char *pMsg )
 	// save last char to detect when line was not ended
 	lastchar = len > 0 ? pMsg[len - 1] : 0;

-	// spew to engine.log
-	if( s_ld.logfile )
-	{
-		if( s_ld.log_time && print_time )
-		{
-			logtime_len = strftime( logtime, sizeof( logtime ), "[%Y:%m:%d|%H:%M:%S] ", crt_tm ); //full time
-			logtime_len = Q_min( logtime_len, sizeof( logtime ) - 1 ); // just in case
-		}
-		else
-		{
-			logtime[0] = '\0';
-			logtime_len = 0;
-		}
+	if( !s_ld.logfile )
+		return;

-		Sys_PrintLogfile( s_ld.logfileno, logtime, logtime_len, pMsg, false );
-		Sys_FlushLogfile();
+	if( print_time )
+	{
+		logtime_len = strftime( logtime, sizeof( logtime ), "[%Y:%m:%d|%H:%M:%S] ", crt_tm ); //full time
+		logtime_len = Q_min( logtime_len, sizeof( logtime ) - 1 ); // just in case
 	}
+	
+	Sys_PrintLogfile( s_ld.logfileno, logtime, logtime_len, pMsg, false );
+	Sys_FlushLogfile();
 }

 /*
--- a/engine/common/zone.c
+++ b/engine/common/zone.c
@@ -65,8 +65,6 @@ typedef struct memheader_s
 	// immediately followed by data, which is followed by a MEMHEADER_SENTINEL2 byte
 } memheader_t;

-STATIC_CHECK_SIZEOF( memheader_t, 24, 40 );
-
 typedef struct mempool_s
 {
 	struct memheader_s *chain;        // chain of individual memory allocations
--- a/engine/platform/dos/vid_dos.c
+++ b/engine/platform/dos/vid_dos.c
@@ -142,10 +142,17 @@ static qboolean vsync;

 void GL_UpdateSwapInterval( void )
 {
-	if( FBitSet( gl_vsync.flags, FCVAR_CHANGED ))
+	// disable VSync while level is loading
+	if( cls.state < ca_active )
 	{
-		ClearBits( gl_vsync.flags, FCVAR_CHANGED );
-		vsync = gl_vsync.value;
+		// setup vsync here
+		vsync = false;
+		SetBits( gl_vsync->flags, FCVAR_CHANGED );
+	}
+	else if( FBitSet( gl_vsync->flags, FCVAR_CHANGED ))
+	{
+		ClearBits( gl_vsync->flags, FCVAR_CHANGED );
+		vsync = true;
 	}
 }

--- a/engine/platform/linux/s_alsa.c
+++ b/engine/platform/linux/s_alsa.c
@@ -184,7 +184,7 @@ qboolean SNDDMA_Init( void )
 		return false;
 	}

-	dma.buffer = Mem_Calloc( sndpool, samples * 2 );  //allocate pcm frame buffer
+	dma.buffer = Mem_Malloc( sndpool, samples * 2 );  //allocate pcm frame buffer
 	dma.samplepos = 0;
 	dma.samples = samples;
 	dma.format.width = 2;
--- a/engine/platform/linux/vid_fbdev.c
+++ b/engine/platform/linux/vid_fbdev.c
@@ -161,10 +161,17 @@ void* GL_GetProcAddress( const char *name ) // RenderAPI requirement

 void GL_UpdateSwapInterval( void )
 {
-	if( FBitSet( gl_vsync.flags, FCVAR_CHANGED ))
+	// disable VSync while level is loading
+	if( cls.state < ca_active )
+	{
+		// setup fb vsync here
+		fb.vsync = false;
+		SetBits( gl_vsync.flags, FCVAR_CHANGED );
+	}
+	else if( FBitSet( gl_vsync.flags, FCVAR_CHANGED ))
 	{
 		ClearBits( gl_vsync.flags, FCVAR_CHANGED );
-		fb.vsync = gl_vsync.value;
+		fb.vsync = true;
 	}
 }

--- a/engine/platform/platform.h
+++ b/engine/platform/platform.h
@@ -31,7 +31,6 @@ GNU General Public License for more details.
 ==============================================================================
 */
 double Platform_DoubleTime( void );
-void Platform_Sleep( int msec );
 void Platform_ShellExecute( const char *path, const char *parms );
 void Platform_MessageBox( const char *title, const char *message, qboolean parentMainWindow );
 void Platform_SetStatus( const char *status );
@@ -71,9 +70,6 @@ void Android_Shutdown( void );
 #endif

 #if XASH_WIN32
-void Win32_Init( qboolean con_showalways );
-void Win32_Shutdown( void );
-qboolean Win32_NanoSleep( int nsec );
 void Wcon_CreateConsole( qboolean con_showalways );
 void Wcon_DestroyConsole( void );
 void Wcon_InitConsoleCommands( void );
@@ -128,7 +124,7 @@ static inline void Platform_Init( qboolean con_showalways, const char *basedir )
 #elif XASH_DOS
 	DOS_Init( );
 #elif XASH_WIN32
-	Win32_Init( con_showalways );
+	Wcon_CreateConsole( con_showalways );
 #elif XASH_LINUX
 	Linux_Init( );
 #endif
@@ -143,7 +139,7 @@ static inline void Platform_Shutdown( void )
 #elif XASH_DOS
 	DOS_Shutdown( );
 #elif XASH_WIN32
-	Win32_Shutdown( );
+	Wcon_DestroyConsole( );
 #elif XASH_LINUX
 	Linux_Shutdown( );
 #endif
@@ -169,20 +165,20 @@ static inline void Platform_SetupSigtermHandling( void )
 #endif
 }

-static inline qboolean Platform_NanoSleep( int nsec )
+static inline void Platform_Sleep( int msec )
 {
-	// SDL2 doesn't have nanosleep, so use low-level functions here
-	// When this code will be ported to SDL3, use SDL_DelayNS
-#if XASH_POSIX
-	struct timespec ts = {
-		.tv_sec = 0,
-		.tv_nsec = nsec, // just don't put large numbers here
+#if XASH_TIMER == TIMER_SDL
+	SDL_Delay( msec );
+#elif XASH_TIMER == TIMER_POSIX
+	const struct timespec tv = {
+		.tv_sec = msec / 1000,
+		.tv_nsec = (msec % 1000) * 1000000,
 	};
-	return nanosleep( &ts, NULL ) == 0;
-#elif XASH_WIN32
-	return Win32_NanoSleep( nsec );
+	nanosleep( &tv, NULL );
+#elif XASH_TIMER == TIMER_WIN32
+	Sleep( msec );
 #else
-	return false;
+	// stub
 #endif
 }

--- a/engine/platform/posix/crash_glibc.c
+++ b/engine/platform/posix/crash_glibc.c
@@ -17,10 +17,9 @@ GNU General Public License for more details.
 // have backtrace() and backtrace_symbols() calls, which replace for us
 // platform-specific code
 #if HAVE_EXECINFO
+#include "common.h"
 #include <execinfo.h>
 #include <signal.h>
-#include "common.h"
-#include "input.h"

 void Sys_Crash( int signal, siginfo_t *si, void *context )
 {
@@ -71,8 +70,8 @@ void Sys_Crash( int signal, siginfo_t *si, void *context )

 	// put MessageBox as Sys_Error
 	Msg( "%s\n", message );
-#if !XASH_DEDICATED
-	IN_SetMouseGrab( false );
+#ifdef XASH_SDL
+	SDL_SetWindowGrab( host.hWnd, SDL_FALSE );
 #endif
 	host.crashed = true;
 	Platform_MessageBox( "Xash Error", message, false );
--- a/engine/platform/posix/crash_libbacktrace.c
+++ b/engine/platform/posix/crash_libbacktrace.c
@@ -17,7 +17,7 @@ GNU General Public License for more details.
 #include <signal.h>
 #include "common.h"
 #include "backtrace.h"
-#include "input.h"
+

 static struct backtrace_state *g_bt_state;
 static qboolean enable_libbacktrace;
@@ -111,10 +111,8 @@ static int Sys_BacktracePrintFull( void *data, uintptr_t pc, const char *filenam
 		module_name = dlinfo.dli_fname;
 	else module_name = NULL;

-	if( filename && lineno >= 0 && function )
+	if( filename && lineno && function )
 	{
-		filename = COM_FileWithoutPath( filename );
-
 		if( module_name )
 			Sys_AppendPrint( pd, "%2d: %s (%s:%d) (%s)\n", pd->idx++, function, filename, lineno, module_name );
 		else
@@ -160,12 +158,13 @@ void Sys_CrashLibbacktrace( int signal, siginfo_t *si, void *context )
 	pd.message_size = sizeof( message ) - len;
 	pd.len = 0;

-	backtrace_full( g_bt_state, 1, Sys_BacktracePrintFull, Sys_BacktracePrintError, &pd );
+	if( g_bt_state )
+		backtrace_full( g_bt_state, 0, Sys_BacktracePrintFull, Sys_BacktracePrintError, &pd );

 	// put MessageBox as Sys_Error
 	Msg( "%s\n", message );
-#if !XASH_DEDICATED
-	IN_SetMouseGrab( false );
+#ifdef XASH_SDL
+	SDL_SetWindowGrab( host.hWnd, SDL_FALSE );
 #endif
 	host.crashed = true;
 	Platform_MessageBox( "Xash Error", message, false );
--- a/engine/platform/posix/crash_posix.c
+++ b/engine/platform/posix/crash_posix.c
@@ -26,7 +26,6 @@ GNU General Public License for more details.
 #include <signal.h>
 #include <sys/mman.h>
 #include "library.h"
-#include "input.h"

 void Sys_Crash( int signal, siginfo_t *si, void *context );
 void Sys_CrashLibbacktrace( int signal, siginfo_t *si, void *context );
@@ -193,8 +192,8 @@ void Sys_Crash( int signal, siginfo_t *si, void *context )

 	// put MessageBox as Sys_Error
 	Msg( "%s\n", message );
-#if !XASH_DEDICATED
-	IN_SetMouseGrab( false );
+#ifdef XASH_SDL
+	SDL_SetWindowGrab( host.hWnd, SDL_FALSE );
 #endif
 	host.crashed = true;
 	Platform_MessageBox( "Xash Error", message, false );
--- a/engine/platform/posix/sys_posix.c
+++ b/engine/platform/posix/sys_posix.c
@@ -174,10 +174,5 @@ double Platform_DoubleTime( void )
 #endif
 	return (double) ts.tv_sec + (double) ts.tv_nsec/1000000000.0;
 }
-
-void Platform_Sleep( int msec )
-{
-	usleep( msec * 1000 );
-}
 #endif // XASH_TIMER == TIMER_POSIX

--- a/engine/platform/sdl/in_sdl.c
+++ b/engine/platform/sdl/in_sdl.c
@@ -33,12 +33,6 @@ static struct
 } cursors;
 #endif

-static struct
-{
-	int x, y;
-	qboolean pushed;
-} in_visible_cursor_pos;
-
 /*
 =============
 Platform_GetMousePos
@@ -209,6 +203,11 @@ void Platform_SetCursorType( VGUI_DefaultCursor type )
 {
 	qboolean visible;

+#if SDL_VERSION_ATLEAST( 2, 0, 0 )
+	if( !cursors.initialized )
+		return;
+#endif
+
 	switch( type )
 	{
 		case dc_user:
@@ -221,7 +220,7 @@ void Platform_SetCursorType( VGUI_DefaultCursor type )
 	}

 	// never disable cursor in touch emulation mode
-	if( !visible && Touch_WantVisibleCursor( ))
+	if( !visible && Touch_Emulated( ))
 		return;

 	host.mouse_visible = visible;
@@ -230,28 +229,11 @@ void Platform_SetCursorType( VGUI_DefaultCursor type )
 #if SDL_VERSION_ATLEAST( 2, 0, 0 )
 	if( host.mouse_visible )
 	{
-		if( cursors.initialized )
-			SDL_SetCursor( cursors.cursors[type] );
-
+		SDL_SetCursor( cursors.cursors[type] );
 		SDL_ShowCursor( true );
-
-		// restore the last mouse position
-		if( in_visible_cursor_pos.pushed )
-		{
-			SDL_WarpMouseInWindow( host.hWnd, in_visible_cursor_pos.x, in_visible_cursor_pos.y );
-			in_visible_cursor_pos.pushed = false;
-		}
 	}
 	else
 	{
-		// save last mouse position and warp it to the center
-		if( !in_visible_cursor_pos.pushed )
-		{
-			SDL_GetMouseState( &in_visible_cursor_pos.x, &in_visible_cursor_pos.y );
-			SDL_WarpMouseInWindow( host.hWnd, host.window_center_x, host.window_center_y );
-			in_visible_cursor_pos.pushed = true;
-		}
-
 		SDL_ShowCursor( false );
 	}
 #else
--- a/engine/platform/sdl/joy_sdl.c
+++ b/engine/platform/sdl/joy_sdl.c
@@ -171,18 +171,6 @@ static void SDLash_GameControllerAdded( int device_index )
 		return;
 	}

-	// this "game controller" only exists on Android within emulator and tries to map
-	// keyboard events into game controller events, which as you can expect, doesn't
-	// work and I don't understand the intention here. When debugging Xash in Android
-	// Studio emulator, just enable hardware input passthrough.
-#if XASH_ANDROID
-	if( !Q_strcmp( SDL_GameControllerName( gc ), "qwerty2" ))
-	{
-		SDL_GameControllerClose( gc );
-		return;
-	}
-#endif // XASH_ANDROID
-
 	list = Mem_Realloc( host.mempool, g_gamepads, sizeof( *list ) * ( g_num_gamepads + 1 ));
 	list[g_num_gamepads++] = gc;

--- a/engine/platform/sdl/s_sdl.c
+++ b/engine/platform/sdl/s_sdl.c
@@ -175,7 +175,7 @@ qboolean SNDDMA_Init( void )
 	if( !samplecount )
 		samplecount = 0x8000;
 	dma.samples         = samplecount * obtained.channels;
-	dma.buffer          = Mem_Calloc( sndpool, dma.samples * 2 );
+	dma.buffer          = Mem_Malloc( sndpool, dma.samples * 2 );
 	dma.samplepos       = 0;

 	sdl_format = obtained.format;
--- a/engine/platform/sdl/sys_sdl.c
+++ b/engine/platform/sdl/sys_sdl.c
@@ -32,11 +32,6 @@ double Platform_DoubleTime( void )
 	CurrentTime = SDL_GetPerformanceCounter();
 	return (double)( CurrentTime - g_ClockStart ) / (double)( g_PerformanceFrequency );
 }
-
-void Platform_Sleep( int msec )
-{
-	SDL_Delay( msec );
-}
 #endif // XASH_TIMER == TIMER_SDL

 #if XASH_MESSAGEBOX == MSGBOX_SDL
@@ -114,11 +109,8 @@ void SDLash_Init( const char *basedir )
 		host.type = HOST_DEDICATED;
 	}

-#if SDL_MAJOR_VERSION >= 2
-	SDL_SetHint( SDL_HINT_ACCELEROMETER_AS_JOYSTICK, "0" );
-	SDL_SetHint( SDL_HINT_MOUSE_TOUCH_EVENTS, "0" );
-	SDL_SetHint( SDL_HINT_TOUCH_MOUSE_EVENTS, "0" );
-
+#if XASH_SDL == 2
+	SDL_SetHint(SDL_HINT_ACCELEROMETER_AS_JOYSTICK, "0");
 	SDL_StopTextInput();
 #endif // XASH_SDL == 2

--- a/engine/platform/sdl/vid_sdl.c
+++ b/engine/platform/sdl/vid_sdl.c
@@ -488,7 +488,13 @@ GL_UpdateSwapInterval
 void GL_UpdateSwapInterval( void )
 {
 #if SDL_VERSION_ATLEAST( 2, 0, 0 )
-	if( FBitSet( gl_vsync.flags, FCVAR_CHANGED ))
+	// disable VSync while level is loading
+	if( cls.state < ca_active )
+	{
+		SDL_GL_SetSwapInterval( 0 );
+		SetBits( gl_vsync.flags, FCVAR_CHANGED );
+	}
+	else if( FBitSet( gl_vsync.flags, FCVAR_CHANGED ))
 	{
 		ClearBits( gl_vsync.flags, FCVAR_CHANGED );

--- a/engine/platform/win32/con_win.c
+++ b/engine/platform/win32/con_win.c
@@ -49,6 +49,10 @@ typedef struct
 	qboolean	inputEnabled;
 	qboolean	consoleVisible;
 	qboolean	attached;
+
+	// log stuff
+	qboolean	log_active;
+	char		log_path[MAX_SYSPATH];
 } WinConData;

 static WinConData	s_wcd;
@@ -498,13 +502,19 @@ create win32 console
 */
 void Wcon_CreateConsole( qboolean con_showalways )
 {
+	if( Sys_CheckParm( "-log" ))
+		s_wcd.log_active = true;
+
 	if( host.type == HOST_NORMAL )
 	{
 		Q_strncpy( s_wcd.title, XASH_ENGINE_NAME " " XASH_VERSION, sizeof( s_wcd.title ));
+		Q_strncpy( s_wcd.log_path, "engine.log", sizeof( s_wcd.log_path ));
 	}
 	else // dedicated console
 	{
 		Q_strncpy( s_wcd.title, XASH_DEDICATED_SERVER_NAME " " XASH_VERSION, sizeof( s_wcd.title ));
+		Q_strncpy( s_wcd.log_path, "dedicated.log", sizeof( s_wcd.log_path ));
+		s_wcd.log_active = true; // always make log
 	}

 	s_wcd.attached = ( AttachConsole( ATTACH_PARENT_PROCESS ) != 0 );
@@ -586,8 +596,10 @@ void Wcon_DestroyConsole( void )
 	// last text message into console or log
 	Con_Reportf( "%s: Unloading xash.dll\n", __func__ );

+	Sys_CloseLog( NULL );
+
 	if( !s_wcd.attached )
-	{
+	{ 
 		if( s_wcd.hWnd )
 		{
 			ShowWindow( s_wcd.hWnd, SW_HIDE );
--- a/engine/platform/win32/crash_win.c
+++ b/engine/platform/win32/crash_win.c
@@ -14,15 +14,11 @@ GNU General Public License for more details.
 */

 #include "platform/platform.h"
-#include "input.h"

 #define DBGHELP 1 // we always enable dbghelp.dll on Windows targets

-#if XASH_SDL
-#include <SDL.h>
-#endif // XASH_SDL
-
 #if DBGHELP
+
 #include <winnt.h>
 #include <dbghelp.h>
 #include <psapi.h>
@@ -272,8 +268,8 @@ static long _stdcall Sys_Crash( PEXCEPTION_POINTERS pInfo )
 		// check to avoid recursive call
 		host.crashed = true;

-#if !XASH_DEDICATED
-		IN_SetMouseGrab( false );
+#ifdef XASH_SDL
+		SDL_SetWindowGrab( host.hWnd, SDL_FALSE );
 #endif // XASH_SDL

 #if DBGHELP
--- a/engine/platform/win32/sys_win.c
+++ b/engine/platform/win32/sys_win.c
@@ -18,8 +18,6 @@ GNU General Public License for more details.
 #include "server.h"
 #include <shellapi.h>

-HANDLE g_waitable_timer;
-
 #if XASH_TIMER == TIMER_WIN32
 double Platform_DoubleTime( void )
 {
@@ -36,74 +34,8 @@ double Platform_DoubleTime( void )

 	return (double)( CurrentTime.QuadPart - g_ClockStart.QuadPart ) / (double)( g_PerformanceFrequency.QuadPart );
 }
-
-void Platform_Sleep( int msec )
-{
-	Sleep( msec );
-}
 #endif // XASH_TIMER == TIMER_WIN32

-void Win32_Init( qboolean con_showalways )
-{
-	HMODULE hModule = LoadLibrary( "kernel32.dll" );
-	if( hModule )
-	{
-		HANDLE ( __stdcall *pfnCreateWaitableTimerExW)( LPSECURITY_ATTRIBUTES lpTimerAttributes, LPCWSTR lpTimerName, DWORD dwFlags, DWORD dwDesiredAccess );
-
-		if(( pfnCreateWaitableTimerExW = (void *)GetProcAddress( hModule, "CreateWaitableTimerExW" )))
-		{
-			g_waitable_timer = pfnCreateWaitableTimerExW(
-				NULL,
-				NULL,
-				0x1 /* CREATE_WAITABLE_TIMER_MANUAL_RESET */ | 0x2 /* CREATE_WAITABLE_TIMER_HIGH_RESOLUTION */,
-				0x0002 /* TIMER_MODIFY_STATE */ | SYNCHRONIZE | DELETE
-			);
-		}
-
-		FreeLibrary( hModule );
-	}
-
-#if 0 // FIXME: creates object but doesn't wait for specific time for me on Windows 10, with the code above commented
-	if( !g_waitable_timer )
-		g_waitable_timer = CreateWaitableTimer( NULL, TRUE, NULL );
-#endif
-
-	Wcon_CreateConsole( con_showalways );
-}
-
-void Win32_Shutdown( void )
-{
-	Wcon_DestroyConsole( );
-
-	if( g_waitable_timer )
-	{
-		CloseHandle( g_waitable_timer );
-		g_waitable_timer = 0;
-	}
-}
-
-qboolean Win32_NanoSleep( int nsec )
-{
-	LARGE_INTEGER ts;
-
-	if( !g_waitable_timer )
-		return false;
-
-	ts.QuadPart = -nsec / 100;
-
-	if( !SetWaitableTimer( g_waitable_timer, &ts, 0, NULL, NULL, FALSE ))
-	{
-		CloseHandle( g_waitable_timer );
-		g_waitable_timer = 0;
-		return false;
-	}
-
-	if( WaitForSingleObject( g_waitable_timer, Q_max( 1, nsec / 1000000 )) != WAIT_OBJECT_0 )
-		return false;
-
-	return true;
-}
-
 qboolean Platform_DebuggerPresent( void )
 {
 	return IsDebuggerPresent();
--- a/engine/ref_api.h
+++ b/engine/ref_api.h
@@ -348,7 +348,7 @@ typedef struct ref_api_s
 	void	(*Con_NXPrintf)( struct con_nprint_s *info, const char *fmt, ... ) FORMAT_CHECK( 2 );
 	void	(*CL_CenterPrint)( const char *s, float y );
 	void (*Con_DrawStringLen)( const char *pText, int *length, int *height );
-	int (*Con_DrawString)( int x, int y, const char *string, const rgba_t setColor );
+	int (*Con_DrawString)( int x, int y, const char *string, rgba_t setColor );
 	void	(*CL_DrawCenterPrint)( void );

 	// entity management
--- a/engine/server/server.h
+++ b/engine/server/server.h
@@ -205,62 +205,69 @@ typedef struct

 typedef struct sv_client_s
 {
-	cl_state_t  state;
-	cl_upload_t upstate;    // uploading state
-	char        name[32];   // extracted from userinfo, color string allowed
-	uint        flags;      // client flags, some info
-	uint        extensions; // protocol extensions
+	cl_state_t	state;
+	cl_upload_t	upstate;			// uploading state
+	char		name[32];			// extracted from userinfo, color string allowed
+	uint		flags;			// client flags, some info
+	CRC32_t		crcValue;

-	char hashedcdkey[34];            // MD5 hash is 32 hex #'s, plus trailing 0
-	char userinfo[MAX_INFO_STRING];  // name, etc (received from client)
-	char physinfo[MAX_INFO_STRING];  // set on server (transmit to client)
-	char useragent[MAX_INFO_STRING];
+	char		userinfo[MAX_INFO_STRING];	// name, etc (received from client)
+	char		physinfo[MAX_INFO_STRING];	// set on server (transmit to client)

-	byte ignorecmdtime_warned; // did we warn our server operator in the log for this batch of commands?
-	byte m_bLoopback;                // does this client want to hear his own voice?
-	uint listeners;   // which other clients does this guy's voice stream go to?
+	netchan_t		netchan;
+	int		chokecount;			// number of messages rate supressed
+	int		delta_sequence;		// -1 = no compression.
+
+	double		next_messagetime;		// time when we should send next world state update
+	double		next_checkpingtime;		// time to send all players pings to client
+	double		next_sendinfotime;		// time to send info about all players
+	double		cl_updaterate;		// client requested updaterate
+	double		timebase;			// client timebase
+	double		connection_started;
+
+	char		hashedcdkey[34];		// MD5 hash is 32 hex #'s, plus trailing 0
+
+	customization_t	customdata;		// player customization linked list
+	resource_t	resourcesonhand;
+	resource_t	resourcesneeded;		// <mapname.res> from client (server downloading)
+	usercmd_t		lastcmd;			// for filling in big drops
+
+	double		connecttime;
+	double		cmdtime;
+	double		ignorecmdtime;
+
+	int		packet_loss;
+	float		latency;
+
+	int		ignored_ents;		// if visibility list is full we should know how many entities will be ignored
+	edict_t		*edict;			// EDICT_NUM(clientnum+1)
+	edict_t		*pViewEntity;		// svc_setview member
+	edict_t		*viewentity[MAX_VIEWENTS];	// list of portal cameras in player PVS
+	int		num_viewents;		// num of portal cameras that can merge PVS
+
+	qboolean		m_bLoopback;		// Does this client want to hear his own voice?
+	uint		listeners;		// which other clients does this guy's voice stream go to?
+
+	// the datagram is written to by sound calls, prints, temp ents, etc.
+	// it can be harmlessly overflowed.
+	sizebuf_t		datagram;
+	byte		datagram_buf[MAX_DATAGRAM];
+
+	client_frame_t	*frames;			// updates can be delta'd from here
+	event_state_t	events;			// delta-updated events cycle
+
+	int		challenge;		// challenge of this user, randomly generated
+	int		userid;			// identifying number on server
+	int		extensions;
+	char		useragent[MAX_INFO_STRING];

 	int ignorecmdtime_warns; // how many times client time was faster than server during this session
-	int userid;              // identifying number on server
+	qboolean ignorecmdtime_warned; // did we warn our server operator in the log for this batch of commands?

-	netchan_t netchan;
-	sizebuf_t datagram; // the datagram is written to by sound calls, prints, temp ents, etc.
-	byte      datagram_buf[MAX_DATAGRAM]; // it can be harmlessly overflowed.
-
-	int chokecount;     // number of messages rate supressed
-	int delta_sequence; // -1 = no compression.
-
-	double next_messagetime;   // time when we should send next world state update
-	double next_checkpingtime; // time to send all players pings to client
-	double next_sendinfotime;  // time to send info about all players
-	double cl_updaterate;      // client requested updaterate
-	double timebase;           // client timebase
-	double connection_started;
-
-	customization_t customdata;      // player customization linked list
-	resource_t      resourcesonhand;
-	resource_t      resourcesneeded; // <mapname.res> from client (server downloading)
-	usercmd_t       lastcmd;         // for filling in big drops
-
-	int    packet_loss;
-	double connecttime;
-	double cmdtime;
-	double ignorecmdtime;
-	float  latency;
-
-	int     ignored_ents; // if visibility list is full we should know how many entities will be ignored
-	edict_t *edict;       // EDICT_NUM(clientnum+1)
-	edict_t *pViewEntity; // svc_setview member
-	edict_t *viewentity[MAX_VIEWENTS]; // list of portal cameras in player PVS
-	int     num_viewents; // num of portal cameras that can merge PVS
-
-	int    userinfo_change_attempts;
 	double fullupdate_next_calltime;
 	double userinfo_next_changetime;
 	double userinfo_penalty;
-
-	client_frame_t *frames; // updates can be delta'd from here
-	event_state_t  events;  // delta-updated events cycle
+	int    userinfo_change_attempts;
 } sv_client_t;

 /*
@@ -272,6 +279,19 @@ typedef struct sv_client_s
 a program error, like an overflowed reliable buffer
 =============================================================================
 */
+// MAX_CHALLENGES is made large to prevent a denial
+// of service attack that could cycle all of them
+// out before legitimate users connected
+#define MAX_CHALLENGES	1024
+
+typedef struct
+{
+	netadr_t		adr;
+	double		time;
+	int		challenge;
+	qboolean		connected;
+} challenge_t;
+
 typedef struct
 {
 	char		name[32];	// in GoldSrc max name length is 12
@@ -365,7 +385,7 @@ typedef struct
 	entity_state_t	*baselines;		// [GI->max_edicts]
 	entity_state_t	*static_entities;		// [MAX_STATIC_ENTITIES];

-	uint32_t  challenge_salt[16]; // pregenerated random numbers for generating challenged based on IP's MD5 address
+	challenge_t	challenges[MAX_CHALLENGES];	// to prevent invalid IPs from connecting

 	sizebuf_t testpacket;         // pregenerataed testpacket, only needs CRC32 patching
 	byte      *testpacket_buf;    // check for NULL if testpacket is available
--- a/engine/server/sv_client.c
+++ b/engine/server/sv_client.c
@@ -86,54 +86,38 @@ flood the server with invalid connection IPs.  With a
 challenge, they must give a valid IP address.
 =================
 */
-static int SV_GetChallenge( netadr_t from, qboolean *error )
+static void SV_GetChallenge( netadr_t from )
 {
-	const netadrtype_t type = NET_NetadrType( &from );
-	MD5Context_t ctx;
-	byte digest[16];
+	int	i, oldest = 0;
+	double	oldestTime;

-	*error = false;
+	oldestTime = 0x7fffffff;

-	MD5Init( &ctx );
-
-	switch( type )
+	// see if we already have a challenge for this ip
+	for( i = 0; i < MAX_CHALLENGES; i++ )
 	{
-	case NA_IP:
-		MD5Update( &ctx, from.ip, sizeof( from.ip ));
-		break;
-	case NA_IPX:
-		MD5Update( &ctx, from.ipx, sizeof( from.ipx ));
-		break;
-	case NA_IP6:
-	{
-		byte ip6[16];
-		NET_NetadrToIP6Bytes( ip6, &from );
-		MD5Update( &ctx, ip6, sizeof( ip6 ));
-		break;
-	}
-	case NA_LOOPBACK:
-		return 0;
-	default:
-		*error = true;
-		return 0;
+		if( !svs.challenges[i].connected && NET_CompareAdr( from, svs.challenges[i].adr ))
+			break;
+
+		if( svs.challenges[i].time < oldestTime )
+		{
+			oldestTime = svs.challenges[i].time;
+			oldest = i;
+		}
 	}

-	MD5Update( &ctx, (byte *)svs.challenge_salt, sizeof( svs.challenge_salt ));
-	MD5Final( digest, &ctx );
-
-	return digest[0] | digest[1] << 8 | digest[2] << 16 | digest[3] << 24;
-}
-
-static void SV_SendChallenge( netadr_t from )
-{
-	qboolean error = false;
-	int challenge = SV_GetChallenge( from, &error );
-
-	if( error )
-		return;
+	if( i == MAX_CHALLENGES )
+	{
+		// this is the first time this client has asked for a challenge
+		svs.challenges[oldest].challenge = (COM_RandomLong( 0, 0x7FFF ) << 16) | COM_RandomLong( 0, 0xFFFF );
+		svs.challenges[oldest].adr = from;
+		svs.challenges[oldest].time = host.realtime;
+		svs.challenges[oldest].connected = false;
+		i = oldest;
+	}

 	// send it back
-	Netchan_OutOfBandPrint( NS_SERVER, from, S2C_CHALLENGE" %i", challenge );
+	Netchan_OutOfBandPrint( NS_SERVER, svs.challenges[i].adr, S2C_CHALLENGE" %i", svs.challenges[i].challenge );
 }

 static int SV_GetFragmentSize( void *pcl, fragsize_t mode )
@@ -227,16 +211,35 @@ Make sure connecting client is not spoofing
 */
 static int SV_CheckChallenge( netadr_t from, int challenge )
 {
-	qboolean error = false;
-	int challenge2 = SV_GetChallenge( from, &error );
+	int	i;

-	if( error || challenge2 != challenge )
+	// see if the challenge is valid
+	// don't care if it is a local address.
+	if( NET_IsLocalAddress( from ))
+		return 1;
+
+	for( i = 0; i < MAX_CHALLENGES; i++ )
 	{
-		SV_RejectConnection( from, "no challenge for your address\n" );
-		return false;
+		if( NET_CompareAdr( from, svs.challenges[i].adr ))
+		{
+			if( challenge == svs.challenges[i].challenge )
+				break; // valid challenge
+#if 0
+			// g-cont. this breaks multiple connections from single machine
+			SV_RejectConnection( from, "bad challenge %i\n", challenge );
+			return 0;
+#endif
+		}
 	}

-	return true;
+	if( i == MAX_CHALLENGES )
+	{
+		SV_RejectConnection( from, "no challenge for your address\n" );
+		return 0;
+	}
+	svs.challenges[i].connected = true;
+
+	return 1;
 }

 /*
@@ -250,7 +253,7 @@ static int SV_CheckIPRestrictions( netadr_t from )
 {
 	if( sv_lan.value )
 	{
-		if( !NET_IsReservedAdr( from ))
+		if( !NET_CompareClassBAdr( from, net_local ) && !NET_IsReservedAdr( from ))
 			return 0;
 	}
 	return 1;
@@ -264,36 +267,23 @@ Get slot # and set client_t pointer for player, if possible
 We don't do this search on a "reconnect, we just reuse the slot
 ================
 */
-static sv_client_t *SV_FindEmptySlot( void )
+static int SV_FindEmptySlot( netadr_t from, int *pslot, sv_client_t **ppClient )
 {
-	int i;
+	sv_client_t	*cl;
+	int		i;

-	for( i = 0; i < svs.maxclients; i++ )
+	for( i = 0, cl = svs.clients; i < svs.maxclients; i++, cl++ )
 	{
-		if( svs.clients[i].state == cs_free )
-			return &svs.clients[i];
+		if( cl->state == cs_free )
+		{
+			*ppClient = cl;
+			*pslot = i;
+			return 1;
+		}
 	}

-	return NULL;
-}
-
-static void SV_MaybeNotifyPlayerCountChange( const sv_client_t *cl, const char *address )
-{
-	int i, count = 0;
-
-	// if this was the first client on the server, or the last client
-	// the server can hold, send a heartbeat to the master.
-	for( i = 0; i < svs.maxclients; i++ )
-	{
-		if( svs.clients[i].state >= cs_connected )
-			count++;
-	}
-
-	if( count == 1 || count == svs.maxclients )
-		NET_MasterClear();
-
-	Log_Printf( "\"%s<%i><%i><>\" connected, address \"%s\"\n",
-		cl->name, cl->userid, (int)( cl - svs.clients ), address );
+	SV_RejectConnection( from, "server is full\n" );
+	return 0;
 }

 /*
@@ -305,14 +295,15 @@ A connection request that did not come from the master
 */
 static void SV_ConnectClient( netadr_t from )
 {
-	char userinfo[MAX_INFO_STRING];
-	char protinfo[MAX_INFO_STRING];
-	client_frame_t *frames;
-	sv_client_t *newcl = NULL;
-	int qport, version;
-	int i;
-	int challenge;
-	const char *s;
+	char		userinfo[MAX_INFO_STRING];
+	char		protinfo[MAX_INFO_STRING];
+	sv_client_t	*cl, *newcl = NULL;
+	qboolean		reconnect = false;
+	int		nClientSlot = 0;
+	int		qport, version;
+	int		i, count = 0;
+	int		challenge;
+	const char		*s;
 	int extensions;
 	uint netchan_flags = 0;

@@ -330,6 +321,39 @@ static void SV_ConnectClient( netadr_t from )
 		return;
 	}

+	challenge = Q_atoi( Cmd_Argv( 2 )); // get challenge
+
+	// see if the challenge is valid (local clients don't need to challenge)
+	if( !SV_CheckChallenge( from, challenge ))
+		return;
+
+	s = Cmd_Argv( 3 );	// protocol info
+
+	if( !Info_IsValid( s ))
+	{
+		SV_RejectConnection( from, "invalid protinfo in connect command\n" );
+		return;
+	}
+
+	Q_strncpy( protinfo, s, sizeof( protinfo ));
+
+	if( !SV_ProcessUserAgent( from, protinfo ) )
+	{
+		return;
+	}
+
+	// extract qport from protocol info
+	qport = Q_atoi( Info_ValueForKey( protinfo, "qport" ));
+
+	s = Info_ValueForKey( protinfo, "uuid" );
+	if( Q_strlen( s ) != 32 )
+	{
+		SV_RejectConnection( from, "invalid authentication certificate length\n" );
+		return;
+	}
+
+	extensions = Q_atoi( Info_ValueForKey( protinfo, "ext" ) );
+
 	// LAN servers restrict to class b IP addresses
 	if( !SV_CheckIPRestrictions( from ))
 	{
@@ -337,31 +361,9 @@ static void SV_ConnectClient( netadr_t from )
 		return;
 	}

-	challenge = Q_atoi( Cmd_Argv( 2 )); // get challenge
-
-	// see if the challenge is valid (local clients don't need to challenge)
-	if( !SV_CheckChallenge( from, challenge ))
-		return;
-
-	s = Cmd_Argv( 3 );
-	if( Q_strlen( s ) > sizeof( protinfo ) || !Info_IsValid( s ))
-	{
-		SV_RejectConnection( from, "invalid protinfo in connect command\n" );
-		return;
-	}
-
-	Q_strncpy( protinfo, s, sizeof( protinfo )); // protocol info
-
-	if( !SV_ProcessUserAgent( from, protinfo ))
-		return;
-
-	// extract qport from protocol info
-	qport = Q_atoi( Info_ValueForKey( protinfo, "qport" ));
-	extensions = Q_atoi( Info_ValueForKey( protinfo, "ext" ));
-
 	s = Cmd_Argv( 4 );	// user info

-	if( Q_strlen( s ) > sizeof( userinfo ) || !Info_IsValid( s ))
+	if( Q_strlen( s ) > MAX_INFO_STRING || !Info_IsValid( s ))
 	{
 		SV_RejectConnection( from, "invalid userinfo in connect command\n" );
 		return;
@@ -380,51 +382,51 @@ static void SV_ConnectClient( netadr_t from )
 	}

 	// if there is already a slot for this ip, reuse it
-	for( i = 0; i < svs.maxclients; i++ )
+	for( i = 0, cl = svs.clients; i < svs.maxclients; i++, cl++ )
 	{
-		sv_client_t *cl = &svs.clients[i];
-
 		if( cl->state == cs_free || cl->state == cs_zombie )
 			continue;

 		if( NET_CompareBaseAdr( from, cl->netchan.remote_address ) && ( cl->netchan.qport == qport || from.port == cl->netchan.remote_address.port ))
 		{
+			reconnect = true;
 			newcl = cl;
-			Con_Reportf( S_NOTE "%s:reconnect\n", NET_AdrToString( from ));
 			break;
 		}
 	}

 	// A reconnecting client will re-use the slot found above when checking for reconnection.
 	// the slot will be wiped clean.
-	if( !newcl )
+	if( !reconnect )
 	{
 		// connect the client if there are empty slots.
-		newcl = SV_FindEmptySlot();
-
-		if( !newcl )
-		{
-			SV_RejectConnection( from, "server is full\n" );
+		if( !SV_FindEmptySlot( from, &nClientSlot, &newcl ))
 			return;
-		}
 	}
+	else
+	{
+		Con_Reportf( S_NOTE "%s:reconnect\n", NET_AdrToString( from ));
+	}
+
+	// find a client slot
+	ASSERT( newcl != NULL );

 	// build a new connection
 	// accept the new client
+
 	sv.current_client = newcl;
-	frames = Mem_Realloc( host.mempool, newcl->frames, sizeof( client_frame_t ) * SV_UPDATE_BACKUP );
-	memset( frames, 0, sizeof( client_frame_t ) * SV_UPDATE_BACKUP );
-	SV_ClearResourceLists( newcl );
-
-	memset( newcl, 0, sizeof( *newcl ));
-
-	newcl->edict = EDICT_NUM(( newcl - svs.clients ) + 1 );
-	newcl->frames = frames;
+	newcl->edict = EDICT_NUM( (newcl - svs.clients) + 1 );
+	newcl->challenge = challenge; // save challenge for checksumming
+	if( newcl->frames ) Mem_Free( newcl->frames );
+	newcl->frames = (client_frame_t *)Z_Calloc( sizeof( client_frame_t ) * SV_UPDATE_BACKUP );
 	newcl->userid = g_userid++;	// create unique userid
 	newcl->state = cs_connected;
-	newcl->extensions = FBitSet( extensions, NET_EXT_SPLITSIZE );
+	newcl->extensions = extensions & (NET_EXT_SPLITSIZE);
 	Q_strncpy( newcl->useragent, protinfo, sizeof( newcl->useragent ));

+	// reset viewentities (from previous level)
+	memset( newcl->viewentity, 0, sizeof( newcl->viewentity ));
+	newcl->num_viewents = 0;
 	// HACKHACK: can hear all players by default to avoid issues
 	// with server.dll without voice game manager
 	newcl->listeners = -1;
@@ -449,18 +451,44 @@ static void SV_ConnectClient( netadr_t from )
 	newcl->connection_started = host.realtime;
 	newcl->cl_updaterate = 0.05;	// 20 fps as default
 	newcl->delta_sequence = -1;
+	newcl->flags = 0;
+
+	// reset any remaining events
+	memset( &newcl->events, 0, sizeof( newcl->events ));

 	// parse some info from the info strings (this can override cl_updaterate)
 	Q_strncpy( newcl->userinfo, userinfo, sizeof( newcl->userinfo ));
+	newcl->fullupdate_next_calltime = 0;
+	newcl->userinfo_next_changetime = 0;
+	newcl->userinfo_penalty = 0;
+	newcl->userinfo_change_attempts = 0;

 	SV_UserinfoChanged( newcl );
-
+	SV_ClearResourceLists( newcl );
+#if 0
+	memset( &newcl->resourcesneeded, 0, sizeof( resource_t ));
+	memset( &newcl->resourcesonhand, 0, sizeof( resource_t ));
+	newcl->resourcesneeded.pNext = newcl->resourcesneeded.pPrev = &newcl->resourcesneeded;
+	newcl->resourcesonhand.pNext = newcl->resourcesonhand.pPrev = &newcl->resourcesonhand;
+#endif
 	newcl->next_messagetime = host.realtime + newcl->cl_updaterate;
+	newcl->next_sendinfotime = 0.0;
+	newcl->ignored_ents = 0;
+	newcl->chokecount = 0;

 	// reset stats
 	newcl->next_checkpingtime = -1.0;
+	newcl->packet_loss = 0;

-	SV_MaybeNotifyPlayerCountChange( newcl, NET_AdrToString( newcl->netchan.remote_address ));
+	// if this was the first client on the server, or the last client
+	// the server can hold, send a heartbeat to the master.
+	for( i = 0, cl = svs.clients; i < svs.maxclients; i++, cl++ )
+		if( cl->state >= cs_connected ) count++;
+
+	Log_Printf( "\"%s<%i><%i><>\" connected, address \"%s\"\n", newcl->name, newcl->userid, i, NET_AdrToString( newcl->netchan.remote_address ));
+
+	if( count == 1 || count == svs.maxclients )
+		NET_MasterClear();
 }

 /*
@@ -472,21 +500,25 @@ A connection request that came from the game module
 */
 edict_t *GAME_EXPORT SV_FakeConnect( const char *netname )
 {
-	char userinfo[MAX_INFO_STRING];
-	int i, count = 0;
-	sv_client_t *cl;
-
-	// find a client slot
-	cl = SV_FindEmptySlot();
-
-	if( !cl )
-		return NULL; // server is full
-
-	userinfo[0] = '\0';
+	char		userinfo[MAX_INFO_STRING];
+	int		i, count = 0;
+	sv_client_t	*cl;

 	if( !COM_CheckString( netname ))
 		netname = "Bot";

+	// find a client slot
+	for( i = 0, cl = svs.clients; i < svs.maxclients; i++, cl++ )
+	{
+		if( cl->state == cs_free )
+			break;
+	}
+
+	if( i == svs.maxclients )
+		return NULL; // server is full
+
+	userinfo[0] = '\0';
+
 	// setup fake client params
 	Info_SetValueForKey( userinfo, "name", netname, sizeof( userinfo ));
 	Info_SetValueForKey( userinfo, "model", "gordon", sizeof( userinfo ));
@@ -496,26 +528,34 @@ edict_t *GAME_EXPORT SV_FakeConnect( const char *netname )
 	// build a new connection
 	// accept the new client
 	sv.current_client = cl;
-	if( cl->frames )
-		Mem_Free( cl->frames );	// fakeclients doesn't have frames
-	SV_ClearResourceLists( cl );

-	memset( cl, 0, sizeof( *cl ));
+	if( cl->frames ) Mem_Free( cl->frames );	// fakeclients doesn't have frames
+	memset( cl, 0, sizeof( sv_client_t ));

-	cl->state = cs_spawned;
-	cl->edict = EDICT_NUM(( cl - svs.clients ) + 1 );
-	cl->userid = g_userid++; // create unique userid
+	cl->edict = EDICT_NUM( (cl - svs.clients) + 1 );
+	cl->userid = g_userid++;		// create unique userid
 	SetBits( cl->flags, FCL_FAKECLIENT );

 	// parse some info from the info strings
 	Q_strncpy( cl->userinfo, userinfo, sizeof( cl->userinfo ));
-
 	SV_UserinfoChanged( cl );
 	SetBits( cl->flags, FCL_RESEND_USERINFO );
+	cl->next_sendinfotime = 0.0;
+
+	// if this was the first client on the server, or the last client
+	// the server can hold, send a heartbeat to the master.
+	for( i = 0, cl = svs.clients; i < svs.maxclients; i++, cl++ )
+		if( cl->state >= cs_connected ) count++;
+	cl = sv.current_client;
+
+	Log_Printf( "\"%s<%i><%i><>\" connected, address \"local\"\n", cl->name, cl->userid, i );
+
 	SetBits( cl->edict->v.flags, FL_CLIENT|FL_FAKECLIENT );	// mark it as fakeclient
 	cl->connection_started = host.realtime;
+	cl->state = cs_spawned;

-	SV_MaybeNotifyPlayerCountChange( cl, "local" );
+	if( count == 1 || count == svs.maxclients )
+		NET_MasterClear();

 	return cl->edict;
 }
@@ -745,7 +785,7 @@ const char *SV_GetClientIDString( sv_client_t *cl )
 	if( sv_lan.value )
 		return "ID_LAN";

-	Q_snprintf( result, sizeof( result ), "ID_%s", cl->hashedcdkey );
+	Q_snprintf( result, sizeof( result ), "ID_%s", MD5_Print( (byte *)cl->hashedcdkey ));
 	return result;
 }

@@ -814,7 +854,7 @@ static void SV_TestBandWidth( netadr_t from )
 		( packetsize > FRAGMENT_MAX_SIZE ))
 	{
 		// skip the test and just get challenge
-		SV_SendChallenge( from );
+		SV_GetChallenge( from );
 		return;
 	}

@@ -822,7 +862,7 @@ static void SV_TestBandWidth( netadr_t from )
 	ofs = packetsize - svs.testpacket_filepos - 1;
 	if(( ofs < 0 ) || ( ofs > svs.testpacket_filelen ))
 	{
-		SV_SendChallenge( from );
+		SV_GetChallenge( from );
 		return;
 	}

@@ -1745,7 +1785,7 @@ static qboolean SV_ShouldUpdateUserinfo( sv_client_t *cl )
 	if( host.realtime < cl->userinfo_next_changetime + cl->userinfo_penalty * sv_userinfo_penalty_multiplier.value )
 	{
 		// player changes userinfo too quick! ignore!
-		if( host.realtime < cl->userinfo_next_changetime && cl->userinfo_change_attempts > 0 )
+		if( host.realtime < cl->userinfo_next_changetime )
 		{
 			Con_Reportf( "%s: ignore userinfo update for %s: penalty %f, attempts %i\n",
 				__func__, cl->name, cl->userinfo_penalty, cl->userinfo_change_attempts );
@@ -1756,15 +1796,15 @@ static qboolean SV_ShouldUpdateUserinfo( sv_client_t *cl )
 	}

 	// they spammed too fast, increase penalty
-	if( cl->userinfo_change_attempts >= (int)sv_userinfo_penalty_attempts.value )
+	if( cl->userinfo_change_attempts > sv_userinfo_penalty_attempts.value )
 	{
+		Con_Reportf( "%s: penalty set %f for %s\n", __func__,
+			cl->userinfo_penalty, cl->name );
 		cl->userinfo_penalty *= sv_userinfo_penalty_multiplier.value;
 		cl->userinfo_change_attempts = 0;
-
-		Con_Reportf( "%s: penalty set %f for %s\n", __func__, cl->userinfo_penalty, cl->name );
 	}

-	cl->userinfo_next_changetime = host.realtime + cl->userinfo_penalty * sv_userinfo_penalty_multiplier.value;
+	cl->userinfo_next_changetime = host.realtime + cl->userinfo_penalty;

 	return allow;
 }
@@ -1868,10 +1908,13 @@ static void SV_UserinfoChanged( sv_client_t *cl )

 	val = Info_ValueForKey( cl->userinfo, "cl_updaterate" );

-	if( COM_CheckString( val ))
+	if( COM_CheckString( val ) )
 	{
-		float rate = Q_atoi( val );
-		cl->cl_updaterate = 1.0 / bound( sv_minupdaterate.value, rate, sv_maxupdaterate.value );
+		if( Q_atoi( val ) != 0 )
+		{
+			cl->cl_updaterate = 1.0 / bound( sv_minupdaterate.value, Q_atoi( val ), sv_maxupdaterate.value );
+		}
+		else cl->cl_updaterate = 0.0;
 	}

 	// call prog code to allow overrides
@@ -3136,7 +3179,7 @@ void SV_ConnectionlessPacket( netadr_t from, sizebuf_t *msg )
 	}
 	else if( !Q_strcmp( pcmd, C2S_GETCHALLENGE ))
 	{
-		SV_SendChallenge( from );
+		SV_GetChallenge( from );
 	}
 	else if( !Q_strcmp( pcmd, C2S_CONNECT ))
 	{
@@ -3169,8 +3212,10 @@ void SV_ConnectionlessPacket( netadr_t from, sizebuf_t *msg )
 			if( len > 0 )
 				Netchan_OutOfBand( NS_SERVER, from, len, (byte*)buf );
 		}
-		else if( sv_log_outofband.value )
+		else
+		{
 			Con_DPrintf( S_ERROR "bad connectionless packet from %s:\n%s\n", NET_AdrToString( from ), args );
+		}
 	}
 }

@@ -3301,10 +3346,6 @@ static void SV_ParseClientMove( sv_client_t *cl, sizebuf_t *msg )
 		SV_RunCmd( cl, &cmds[i], cl->netchan.incoming_sequence - i );
 	}

-	// was player kicked? stop here
-	if( cl->state <= cs_zombie )
-		return;
-
 	cl->lastcmd = cmds[0];

 	// adjust latency time by 1/2 last client frame since
--- a/engine/server/sv_cmds.c
+++ b/engine/server/sv_cmds.c
@@ -573,7 +573,7 @@ static void SV_Kick_f( void )
 	sv_client_t	*cl;
 	const char *param;

-	if( Cmd_Argc() < 2 )
+	if( Cmd_Argc() != 2 )
 	{
 		Con_Printf( S_USAGE "kick <#id|name> [reason]\n" );
 		return;
--- a/engine/server/sv_game.c
+++ b/engine/server/sv_game.c
@@ -2379,7 +2379,7 @@ void GAME_EXPORT pfnClientCommand( edict_t* pEdict, char* szFmt, ... )
 	if( sv.state != ss_active )
 		return; // early out

-	if(( cl = SV_ClientFromEdict( pEdict, false )) == NULL )
+	if(( cl = SV_ClientFromEdict( pEdict, true )) == NULL )
 	{
 		Con_Printf( S_ERROR "stuffcmd: client is not spawned!\n" );
 		return;
@@ -4600,7 +4600,7 @@ static void GAME_EXPORT pfnQueryClientCvarValue( const edict_t *player, const ch
 	if( !COM_CheckString( cvarName ))
 		return;

-	if(( cl = SV_ClientFromEdict( player, false )) != NULL )
+	if(( cl = SV_ClientFromEdict( player, true )) != NULL )
 	{
 		MSG_BeginServerCmd( &cl->netchan.message, svc_querycvarvalue );
 		MSG_WriteString( &cl->netchan.message, cvarName );
@@ -4627,7 +4627,7 @@ static void GAME_EXPORT pfnQueryClientCvarValue2( const edict_t *player, const c
 	if( !COM_CheckString( cvarName ))
 		return;

-	if(( cl = SV_ClientFromEdict( player, false )) != NULL )
+	if(( cl = SV_ClientFromEdict( player, true )) != NULL )
 	{
 		MSG_BeginServerCmd( &cl->netchan.message, svc_querycvarvalue2 );
 		MSG_WriteLong( &cl->netchan.message, requestID );
--- a/engine/server/sv_init.c
+++ b/engine/server/sv_init.c
@@ -1027,9 +1027,6 @@ qboolean SV_SpawnServer( const char *mapname, const char *startspot, qboolean ba
 	svs.timestart = Sys_DoubleTime();
 	svs.spawncount++; // any partially connected client will be restarted

-	for( i = 0; i < ARRAYSIZE( svs.challenge_salt ); i++ )
-		svs.challenge_salt[i] = COM_RandomLong( 0, 0x7FFFFFFE );
-
 	cycle = Cvar_VariableString( "mapchangecfgfile" );

 	if( COM_CheckString( cycle ))
--- a/engine/server/sv_main.c
+++ b/engine/server/sv_main.c
@@ -106,7 +106,7 @@ CVAR_DEFINE_AUTO( sv_skyvec_y, "0", FCVAR_MOVEVARS|FCVAR_UNLOGGED, "skylight dir
 CVAR_DEFINE_AUTO( sv_skyvec_z, "0", FCVAR_MOVEVARS|FCVAR_UNLOGGED, "skylight direction by z-axis" );
 CVAR_DEFINE_AUTO( sv_wateralpha, "1", FCVAR_MOVEVARS|FCVAR_UNLOGGED, "world surfaces water transparency factor. 1.0 - solid, 0.0 - fully transparent" );
 CVAR_DEFINE_AUTO( sv_background_freeze, "1", FCVAR_ARCHIVE, "freeze player movement on background maps (e.g. to prevent falling)" );
-static CVAR_DEFINE_AUTO( showtriggers, "0", FCVAR_LATCH|FCVAR_TEMPORARY, "debug cvar shows triggers" );
+static CVAR_DEFINE_AUTO( showtriggers, "0", FCVAR_LATCH, "debug cvar shows triggers" );
 static CVAR_DEFINE_AUTO( sv_airmove, "1", FCVAR_SERVER, "obsolete, compatibility issues" );
 static CVAR_DEFINE_AUTO( sv_version, "", FCVAR_READ_ONLY, "engine version string" );
 CVAR_DEFINE_AUTO( hostname, "", FCVAR_PRINTABLEONLY, "name of current host" );
@@ -763,31 +763,6 @@ qboolean SV_ProcessUserAgent( netadr_t from, const char *useragent )
 {
 	const char *input_devices_str = Info_ValueForKey( useragent, "d" );
 	const char *id = Info_ValueForKey( useragent, "uuid" );
-	size_t len, i;
-
-	len = Q_strlen( id );
-	if( len != 32 )
-	{
-		SV_RejectConnection( from, "invalid authentication certificate\n" );
-		return false;
-	}
-
-	for( i = 0; i < len; i++ )
-	{
-		char c = id[i];
-
-		if( !isdigit( id[i] ) && !( c >= 'a' && c <= 'f' ))
-		{
-			SV_RejectConnection( from, "invalid authentication certificate\n" );
-			return false;
-		}
-	}
-
-	if( SV_CheckID( id ))
-	{
-		SV_RejectConnection( from, "You are banned!\n" );
-		return false;
-	}

 	if( !sv_allow_noinputdevices.value && ( !input_devices_str || !input_devices_str[0] ) )
 	{
@@ -821,6 +796,17 @@ qboolean SV_ProcessUserAgent( netadr_t from, const char *useragent )
 		}
 	}

+	if( id )
+	{
+		qboolean banned = SV_CheckID( id );
+
+		if( banned )
+		{
+			SV_RejectConnection( from, "You are banned!\n" );
+			return false;
+		}
+	}
+
 	return true;
 }

--- a/engine/server/sv_pmove.c
+++ b/engine/server/sv_pmove.c
@@ -892,10 +892,6 @@ void SV_RunCmd( sv_client_t *cl, usercmd_t *ucmd, int random_seed )
 	vec3_t	oldvel;
 	usercmd_t cmd;

-	// if the player got kicked, do not process commands
-	if( cl->state <= cs_zombie )
-		return;
-
 	clent = cl->edict;
 	cmd = *ucmd;

--- a/filesystem/filesystem.c
+++ b/filesystem/filesystem.c
@@ -3119,10 +3119,6 @@ qboolean FS_Rename( const char *oldname, const char *newname )
 	char oldname2[MAX_SYSPATH], newname2[MAX_SYSPATH], oldpath[MAX_SYSPATH], newpath[MAX_SYSPATH];
 	int ret;

-	// a1ba: disallow path traversal
-	if( FS_CheckNastyPath( oldname ) || FS_CheckNastyPath( newname ))
-		return false;
-
 	if( !fs_writepath )
 		return false;

@@ -3171,10 +3167,6 @@ qboolean GAME_EXPORT FS_Delete( const char *path )
 	char path2[MAX_SYSPATH], real_path[MAX_SYSPATH];
 	int ret;

-	// a1ba: disallow path traversal
-	if( FS_CheckNastyPath( path ))
-		return false;
-
 	if( !fs_writepath || !COM_CheckString( path ))
 		return false;

--- a/ref/gl/gl_opengl.c
+++ b/ref/gl/gl_opengl.c
@@ -907,7 +907,13 @@ static void GL_InitExtensionsBigGL( void )
 		GL_CheckExtension( "GL_ARB_seamless_cube_map", NULL, 0, "gl_texture_cubemap_seamless", GL_ARB_SEAMLESS_CUBEMAP, 0 );
 	}

-	GL_CheckExtension( "GL_ARB_texture_non_power_of_two", NULL, 0, "gl_texture_npot", GL_ARB_TEXTURE_NPOT_EXT, 0 );
+	// NPOT textures support
+	if( !GL_CheckExtension( "GL_ARB_texture_non_power_of_two", NULL, 0, "gl_texture_npot", GL_ARB_TEXTURE_NPOT_EXT, 0 ))
+	{
+		// vitaGL exposes OES extension
+		GL_CheckExtension( "GL_OES_texture_npot", NULL, 0, "gl_texture_npot", GL_ARB_TEXTURE_NPOT_EXT, 0 );
+	}
+
 	GL_CheckExtension( "GL_ARB_texture_compression", texturecompressionfuncs, ARRAYSIZE( texturecompressionfuncs ), "gl_texture_dxt_compression", GL_TEXTURE_COMPRESSION_EXT, 0 );
 	if( !GL_CheckExtension( "GL_EXT_texture_edge_clamp", NULL, 0, "gl_clamp_to_edge", GL_CLAMPTOEDGE_EXT, 2.0 )) // present in ES2
 		GL_CheckExtension( "GL_SGIS_texture_edge_clamp", NULL, 0, "gl_clamp_to_edge", GL_CLAMPTOEDGE_EXT, 0 );
--- a/ref/gl/gl_rsurf.c
+++ b/ref/gl/gl_rsurf.c
@@ -1093,14 +1093,6 @@ static void R_RenderFullbrights( void )
 	pglBlendFunc( GL_ONE, GL_ONE );
 	pglTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );

-	// if fullbright textures are drawn in separate pass from VBO they
-	// cause z-fighting, this is noticeable on `slide_waifufu.bsp` map
-	if( R_HasEnabledVBO() && gl_polyoffset.value )
-	{
-		pglEnable( GL_POLYGON_OFFSET_FILL );
-		pglPolygonOffset( -1.0f, -gl_polyoffset.value );
-	}
-
 	for( i = draw_fullbrights.first; i <= draw_fullbrights.last; i++ )
 	{
 		es = fullbright_surfaces[i];
@@ -1116,9 +1108,6 @@ static void R_RenderFullbrights( void )
 		es->lumachain = NULL;
 	}

-	if( R_HasEnabledVBO() && gl_polyoffset.value )
-		pglDisable( GL_POLYGON_OFFSET_FILL );
-
 	pglDisable( GL_BLEND );
 	pglDepthMask( GL_TRUE );
 	pglDisable( GL_ALPHA_TEST );
--- a/ref/gl/gl_studio.c
+++ b/ref/gl/gl_studio.c
@@ -816,7 +816,7 @@ static void R_StudioCalcRotations( cl_entity_t *e, float pos[][3], vec4_t *q, ms
 	R_StudioCalcBoneAdj( dadt, adj, e->curstate.controller, e->latched.prevcontroller, e->mouth.mouthopen );

 	for( i = 0; i < m_pStudioHeader->numbones; i++, pbone++, panim++ )
-		R_StudioCalcBones( frame, s, pbone, panim, adj, pos[i], q[i] );
+		R_StudioCalcBones( frame, s, pbone, panim, adj, q[i], pos[i] );

 	if( pseqdesc->motiontype & STUDIO_X ) pos[pseqdesc->motionbone][0] = 0.0f;
 	if( pseqdesc->motiontype & STUDIO_Y ) pos[pseqdesc->motionbone][1] = 0.0f;
--- a/ref/soft/r_studio.c
+++ b/ref/soft/r_studio.c
@@ -835,7 +835,7 @@ static void R_StudioCalcRotations( cl_entity_t *e, float pos[][3], vec4_t *q, ms
 	R_StudioCalcBoneAdj( dadt, adj, e->curstate.controller, e->latched.prevcontroller, e->mouth.mouthopen );

 	for( i = 0; i < m_pStudioHeader->numbones; i++, pbone++, panim++ )
-		R_StudioCalcBones( frame, s, pbone, panim, adj, pos[i], q[i] );
+		R_StudioCalcBones( frame, s, pbone, panim, adj, q[i], pos[i] );

 	if( pseqdesc->motiontype & STUDIO_X )
 		pos[pseqdesc->motionbone][0] = 0.0f;
--- a/scripts/waifulib/compiler_optimizations.py
+++ b/scripts/waifulib/compiler_optimizations.py
@@ -61,8 +61,8 @@ CFLAGS = {
 	'common': {
 		# disable thread-safe local static initialization for C++11 code, as it cause crashes on Windows XP
 		'msvc':    ['/D_USING_V110_SDK71_', '/FS', '/Zc:threadSafeInit-', '/MT', '/MP', '/Zc:__cplusplus'],
-		'clang':   ['-g', '-gdwarf-2', '-fvisibility=hidden', '-fno-threadsafe-statics', '-fasynchronous-unwind-tables'],
-		'gcc':     ['-g', '-fvisibility=hidden', '-fasynchronous-unwind-tables'],
+		'clang':   ['-g', '-gdwarf-2', '-fvisibility=hidden', '-fno-threadsafe-statics'],
+		'gcc':     ['-g', '-fvisibility=hidden'],
 		'owcc':	   ['-fno-short-enum', '-ffloat-store', '-g3']
 	},
 	'fast': {
@@ -240,21 +240,16 @@ def get_optimization_flags(conf):
 		linkflags+= [conf.get_flags_by_compiler(PROFILE_USE_LINKFLAGS, conf.env.COMPILER_CC)[0] % conf.options.PROFILE_USE]
 		cflags   += [conf.get_flags_by_compiler(PROFILE_USE_CFLAGS, conf.env.COMPILER_CC)[0] % conf.options.PROFILE_USE]

-	if conf.env.DEST_OS == 'nswitch':
-		if conf.options.BUILD_TYPE == 'debug':
-			# enable remote debugger
-			cflags.append('-DNSWITCH_DEBUG')
-		# this port don't have stack printing support
-		cflags.remove('-fasynchronous-unwind-tables')
+	if conf.env.DEST_OS == 'nswitch' and conf.options.BUILD_TYPE == 'debug':
+		# enable remote debugger
+		cflags.append('-DNSWITCH_DEBUG')
 	elif conf.env.DEST_OS == 'psvita':
 		# this optimization is broken in vitasdk
 		cflags.append('-fno-optimize-sibling-calls')
 		# remove fvisibility to allow everything to be exported by default
 		cflags.remove('-fvisibility=hidden')
-		# this port don't have stack printing support
-		cflags.remove('-fasynchronous-unwind-tables')

-	if conf.env.COMPILER_CC == 'gcc' or conf.env.COMPILER_CC == 'clang' and conf.env.DEST_OS not in ['android']:
+	if conf.env.COMPILER_CC != 'msvc' and conf.env.COMPILER_CC != 'owcc':
 		# HLSDK by default compiles with these options under Linux
 		# no reason for us to not do the same

--- a/scripts/waifulib/sdl2.py
+++ b/scripts/waifulib/sdl2.py
@@ -48,12 +48,6 @@ def sdl2_configure_path(conf, path, libname):
 		conf.env[FRAMEWORKPATH] = [my_dirname(path)]
 		conf.env[FRAMEWORK] = [libname]
 		conf.end_msg('yes: {0}, {1}, {2}'.format(conf.env[FRAMEWORK], conf.env[FRAMEWORKPATH], conf.env[INCLUDES]))
-	elif conf.env.DEST_OS == 'android':
-		# Special setup for waf called from CMake, through ExternalProject_Add
-		conf.env[INCLUDES] = [os.path.abspath(os.path.join(path, 'include'))]
-		conf.env[LIBPATH] = [os.environ['BUILD_CMAKE_LIBRARY_OUTPUT_DIRECTORY']]
-		conf.env[LIB] = [libname]
-		conf.end_msg('yes: {0}, {1}, {2}'.format(conf.env[LIB], conf.env[LIBPATH], conf.env[INCLUDES]))
 	else:
 		conf.env[INCLUDES] = [
 			os.path.abspath(os.path.join(path, 'include')),
--- a/scripts/waifulib/xcompile.py
+++ b/scripts/waifulib/xcompile.py
@@ -20,20 +20,12 @@ import os
 import sys

 ANDROID_NDK_ENVVARS = ['ANDROID_NDK_HOME', 'ANDROID_NDK']
-ANDROID_NDK_SUPPORTED = [10, 19, 20, 23, 25, 27, 28]
+ANDROID_NDK_SUPPORTED = [10, 19, 20, 23, 25]
 ANDROID_NDK_HARDFP_MAX = 11 # latest version that supports hardfp
 ANDROID_NDK_GCC_MAX = 17 # latest NDK that ships with GCC
 ANDROID_NDK_UNIFIED_SYSROOT_MIN = 15
 ANDROID_NDK_SYSROOT_FLAG_MAX = 19 # latest NDK that need --sysroot flag
-ANDROID_NDK_API_MIN = {
-	10: 3,
-	19: 16,
-	20: 16,
-	23: 16,
-	25: 19,
-	27: 19,
-	28: 19,
-} # minimal API level ndk revision supports
+ANDROID_NDK_API_MIN = { 10: 3, 19: 16, 20: 16, 23: 16, 25: 19 } # minimal API level ndk revision supports

 ANDROID_STPCPY_API_MIN = 21 # stpcpy() introduced in SDK 21
 ANDROID_64BIT_API_MIN = 21 # minimal API level that supports 64-bit targets
@@ -58,7 +50,6 @@ class Android:
 		self.api = api
 		self.toolchain = toolchain
 		self.arch = arch
-		self.exe = '.exe' if sys.platform.startswith('win32') or sys.platform.startswith('cygwin') else ''

 		for i in ANDROID_NDK_ENVVARS:
 			self.ndk_home = os.getenv(i)
@@ -205,10 +196,10 @@ class Android:

 	def gen_toolchain_path(self):
 		if self.is_clang():
-			base = ''
+			triplet = '%s%d-' % (self.ndk_triplet(llvm_toolchain = True), self.api)
 		else:
-			base = self.ndk_triplet() + '-'
-		return os.path.join(self.gen_gcc_toolchain_path(), 'bin', base)
+			triplet = self.ndk_triplet() + '-'
+		return os.path.join(self.gen_gcc_toolchain_path(), 'bin', triplet)

 	def gen_binutils_path(self):
 		if self.ndk_rev >= 23:
@@ -224,11 +215,7 @@ class Android:
 				s = environ['CC']

 			return '%s --target=%s%d' % (s, self.ndk_triplet(), self.api)
-
-		if self.is_clang():
-			return '%s --target=%s%d' % (self.gen_toolchain_path() + 'clang' + self.exe, self.ndk_triplet(), self.api)
-
-		return self.gen_toolchain_path() + 'gcc'
+		return self.gen_toolchain_path() + ('clang' if self.is_clang() else 'gcc')

 	def cxx(self):
 		if self.is_host():
@@ -239,33 +226,19 @@ class Android:
 				s = environ['CXX']

 			return '%s --target=%s%d' % (s, self.ndk_triplet(), self.api)
-
-		if self.is_clang():
-			return '%s --target=%s%d' % (self.gen_toolchain_path() + 'clang++' + self.exe, self.ndk_triplet(), self.api)
-
-		return self.gen_toolchain_path() + 'g++'
+		return self.gen_toolchain_path() + ('clang++' if self.is_clang() else 'g++')

 	def strip(self):
 		if self.is_host():
 			environ = getattr(self.ctx, 'environ', os.environ)
+
 			if 'STRIP' in environ:
 				return environ['STRIP']
 			return 'llvm-strip'

 		if self.ndk_rev >= 23:
-			return os.path.join(self.gen_binutils_path(), 'llvm-strip' + self.exe)
-		return os.path.join(self.gen_binutils_path(), 'strip' + self.exe)
-
-	def ar(self):
-		if self.is_host():
-			environ = getattr(self.ctx, 'environ', os.environ)
-			if 'AR' in environ:
-				return environ['AR']
-			return 'llvm-ar'
-
-		if self.ndk_rev >= 23:
-			return os.path.join(self.gen_binutils_path(), 'llvm-ar' + self.exe)
-		return os.path.join(self.gen_binutils_path(), 'ar' + self.exe)
+			return os.path.join(self.gen_binutils_path(), 'llvm-strip')
+		return os.path.join(self.gen_binutils_path(), 'strip')

 	def system_stl(self):
 		# TODO: proper STL support
@@ -363,7 +336,7 @@ class Android:
 			ldflags += ['-lgcc']

 		if self.is_clang() or self.is_host():
-			ldflags += ['-stdlib=libstdc++', '-lc++abi']
+			ldflags += ['-stdlib=libstdc++']
 		else: ldflags += ['-no-canonical-prefixes']

 		if self.is_arm():
@@ -548,33 +521,25 @@ def configure(conf):

 		valid_archs = ['x86', 'x86_64', 'armeabi', 'armeabi-v7a', 'armeabi-v7a-hard', 'aarch64']

-		if values[0] == 'arm64-v8a':
-			values[0] = 'aarch64'
-
 		if values[0] not in valid_archs:
 			conf.fatal('Unknown arch: %s. Supported: %r' % (values[0], ', '.join(valid_archs)))

 		conf.android = android = Android(conf, values[0], values[1], int(values[2]))
-
 		conf.environ['CC'] = android.cc()
 		conf.environ['CXX'] = android.cxx()
 		conf.environ['STRIP'] = android.strip()
-		conf.environ['AR'] = android.ar()
 		conf.env.CFLAGS += android.cflags()
 		conf.env.CXXFLAGS += android.cflags(True)
 		conf.env.LINKFLAGS += android.linkflags()
 		conf.env.LDFLAGS += android.ldflags()

-		from waflib.Tools.compiler_c import c_compiler
-		from waflib.Tools.compiler_cxx import cxx_compiler
-		c_compiler['win32'] = ['clang' if android.is_clang() or android.is_host() else 'gcc']
-		cxx_compiler['win32'] = ['clang++' if android.is_clang() or android.is_host() else 'gxx']
-
 		conf.env.HAVE_M = True
 		if android.is_hardfp():
 			conf.env.LIB_M = ['m_hard']
 		else: conf.env.LIB_M = ['m']

+		conf.env.PREFIX = '/lib/%s' % android.apk_arch()
+
 		conf.msg('Selected Android NDK', '%s, version: %d' % (android.ndk_home, android.ndk_rev))
 		# no need to print C/C++ compiler, as it would be printed by compiler_c/cxx
 		conf.msg('... C/C++ flags', ' '.join(android.cflags()).replace(android.ndk_home, '$NDK/'))
--- a/23
+++ b/23
@@ -84,7 +84,7 @@ SUBDIRS = [
 	Subproject('filesystem'),
 	Subproject('stub/server'),
 	Subproject('dllemu'),
-	Subproject('3rdparty/libbacktrace'),
+	Subproject('3rdparty/libbacktrace', lambda x: not x.env.HAVE_SYSTEM_LIBBACKTRACE),

 	# disable only by engine feature, makes no sense to even parse subprojects in dedicated mode
 	Subproject('3rdparty/extras',       lambda x: x.env.CLIENT and x.env.DEST_OS != 'android'),
@@ -468,16 +468,7 @@ def configure(conf):

 	# set _FILE_OFFSET_BITS=64 for filesystems with 64-bit inodes
 	# must be set globally as it changes ABI
-	if conf.env.DEST_OS == 'android' and conf.env.DEST_SIZEOF_VOID_P == 4:
-		# Android in 32-bit mode don't have good enough large file support
-		# with our native API level
-		# https://android.googlesource.com/platform/bionic/+/HEAD/docs/32-bit-abi.md
-		pass
-	elif conf.env.DEST_OS == 'psvita':
-		# PSVita don't have large file support at all
-		pass
-	else:
-		# try to guess how to support large files
+	if conf.env.DEST_OS not in ['psvita']:
 		conf.check_large_file(compiler = 'c', execute = False)

 	# indicate if we are packaging for Linux/BSD
@@ -494,8 +485,14 @@ def configure(conf):
 		conf.env.SHAREDIR = conf.env.LIBDIR = conf.env.BINDIR = conf.env.PREFIX

 	if not conf.options.BUILD_BUNDLED_DEPS:
-		# there was a check for system libbacktrace but we can't be sure if it supports fileline or not
-		# therefore, always build libbacktrace ourselves
+		frag='''#include <backtrace.h>
+#include <backtrace-supported.h>
+#if !BACKTRACE_SUPPORTS_THREADS
+#error
+#endif
+int main(int argc, char **argv) { return backtrace_create_state(argv[0], 1, 0, 0) != 0; }'''
+
+		conf.env.HAVE_SYSTEM_LIBBACKTRACE = conf.check_cc(lib='backtrace', fragment=frag, uselib_store='backtrace', mandatory=False)

 		if conf.env.CLIENT:
 			for i in ('ogg','opusfile','vorbis','vorbisfile'):