Declare unified module interface and use it in modules

This fixes loading modules compiled with a C++ compiler. Remote thandle
type, it's unused. Use tintptr for module data. Don't cast pointers to
long, they won't fit on Win64.

common/arch.h

@@ -113,7 +113,6 @@ typedef __int64 tbus;
 #else
 typedef long tbus;
 #endif
-typedef tbus thandle;
 typedef tbus tintptr;
 /* wide char, socket */
 #if defined(_WIN32)
@@ -137,4 +136,14 @@ typedef signed long long tsi64;
 #define printflike(arg_format, arg_first_check)
 #endif
 
+/* module interface */
+#ifdef __cplusplus
+extern "C" {
+#endif
+   tintptr mod_init();
+   int mod_exit(tintptr);
+#ifdef __cplusplus
+}
+#endif
+
 #endif

mc/mc.c

@@ -81,7 +81,7 @@ lib_mod_set_param(struct mod *mod, const char *name, char *value)
 }
 
 /******************************************************************************/
-struct mod *EXPORT_CC
+tintptr EXPORT_CC
 mod_init(void)
 {
     struct mod *mod;
@@ -89,20 +89,22 @@ mod_init(void)
     mod = (struct mod *)g_malloc(sizeof(struct mod), 1);
     mod->size = sizeof(struct mod);
     mod->version = CURRENT_MOD_VER;
-    mod->handle = (long)mod;
+    mod->handle = (tintptr) mod;
     mod->mod_connect = lib_mod_connect;
     mod->mod_start = lib_mod_start;
     mod->mod_event = lib_mod_event;
     mod->mod_signal = lib_mod_signal;
     mod->mod_end = lib_mod_end;
     mod->mod_set_param = lib_mod_set_param;
-    return mod;
+    return (tintptr) mod;
 }
 
 /******************************************************************************/
 int EXPORT_CC
-mod_exit(struct mod *mod)
+mod_exit(tintptr handle)
 {
+    struct mod *mod = (struct mod *) handle;
+
     if (mod == 0)
     {
         return 0;

neutrinordp/xrdp-neutrinordp.c

@@ -1955,7 +1955,7 @@ lfreerdp_verify_certificate(freerdp *instance, char *subject, char *issuer,
 }
 
 /******************************************************************************/
-struct mod *EXPORT_CC
+tintptr EXPORT_CC
 mod_init(void)
 {
     struct mod *mod;
@@ -1968,7 +1968,7 @@ mod_init(void)
                mod->vmaj, mod->vmin, mod->vrev));
     mod->size = sizeof(struct mod);
     mod->version = CURRENT_MOD_VER;
-    mod->handle = (tbus)mod;
+    mod->handle = (tintptr) mod;
     mod->mod_connect = lxrdp_connect;
     mod->mod_start = lxrdp_start;
     mod->mod_event = lxrdp_event;
@@ -1995,13 +1995,15 @@ mod_init(void)
     lcon->modi = mod;
     LLOGLN(10, ("mod_init: mod %p", mod));
 
-    return mod;
+    return (tintptr) mod;
 }
 
 /******************************************************************************/
 int EXPORT_CC
-mod_exit(struct mod *mod)
+mod_exit(tintptr handle)
 {
+    struct mod *mod = (struct mod *) handle;
+
     LLOGLN(0, ("mod_exit:"));
 
     if (mod == 0)

rdp/rdp.c

@@ -318,7 +318,7 @@ lib_mod_check_wait_objs(struct mod *mod)
 }
 
 /******************************************************************************/
-struct mod *EXPORT_CC
+tintptr EXPORT_CC
 mod_init(void)
 {
     struct mod *mod;
@@ -327,7 +327,7 @@ mod_init(void)
     mod = (struct mod *)g_malloc(sizeof(struct mod), 1);
     mod->size = sizeof(struct mod);
     mod->version = CURRENT_MOD_VER;
-    mod->handle = (long)mod;
+    mod->handle = (tintptr) mod;
     mod->mod_connect = lib_mod_connect;
     mod->mod_start = lib_mod_start;
     mod->mod_event = lib_mod_event;
@@ -338,13 +338,15 @@ mod_init(void)
     mod->mod_check_wait_objs = lib_mod_check_wait_objs;
     mod->rdp_layer = rdp_rdp_create(mod);
     DEBUG(("out mod_init"));
-    return mod;
+    return (tintptr) mod;
 }
 
 /******************************************************************************/
 int EXPORT_CC
-mod_exit(struct mod *mod)
+mod_exit(tintptr handle)
 {
+    struct mod *mod = (struct mod *) handle;
+
     DEBUG(("in mod_exit"));
     g_free(mod);
     DEBUG(("out mod_exit"));

vnc/vnc.c

@@ -1465,7 +1465,7 @@ lib_mod_check_wait_objs(struct vnc *v)
 }
 
 /******************************************************************************/
-struct vnc *EXPORT_CC
+tintptr EXPORT_CC
 mod_init(void)
 {
     struct vnc *v;
@@ -1474,7 +1474,7 @@ mod_init(void)
     /* set client functions */
     v->size = sizeof(struct vnc);
     v->version = CURRENT_MOD_VER;
-    v->handle = (long)v;
+    v->handle = (tintptr) v;
     v->mod_connect = lib_mod_connect;
     v->mod_start = lib_mod_start;
     v->mod_event = lib_mod_event;
@@ -1483,13 +1483,14 @@ mod_init(void)
     v->mod_set_param = lib_mod_set_param;
     v->mod_get_wait_objs = lib_mod_get_wait_objs;
     v->mod_check_wait_objs = lib_mod_check_wait_objs;
-    return v;
+    return (tintptr) v;
 }
 
 /******************************************************************************/
 int EXPORT_CC
-mod_exit(struct vnc *v)
+mod_exit(tintptr handle)
 {
+    struct vnc *v = (struct vnc *) handle;
     log_message(LOG_LEVEL_DEBUG, "VNC mod_exit");
 
     if (v == 0)

xup/xup.c

@@ -1552,7 +1552,7 @@ lib_mod_frame_ack(struct mod *amod, int flags, int frame_id)
 }
 
 /******************************************************************************/
-struct mod *EXPORT_CC
+tintptr EXPORT_CC
 mod_init(void)
 {
     struct mod *mod;
@@ -1560,7 +1560,7 @@ mod_init(void)
     mod = (struct mod *)g_malloc(sizeof(struct mod), 1);
     mod->size = sizeof(struct mod);
     mod->version = CURRENT_MOD_VER;
-    mod->handle = (tbus)mod;
+    mod->handle = (tintptr) mod;
     mod->mod_connect = lib_mod_connect;
     mod->mod_start = lib_mod_start;
     mod->mod_event = lib_mod_event;
@@ -1570,13 +1570,15 @@ mod_init(void)
     mod->mod_get_wait_objs = lib_mod_get_wait_objs;
     mod->mod_check_wait_objs = lib_mod_check_wait_objs;
     mod->mod_frame_ack = lib_mod_frame_ack;
-    return mod;
+    return (tintptr) mod;
 }
 
 /******************************************************************************/
 int EXPORT_CC
-mod_exit(struct mod *mod)
+mod_exit(tintptr handle)
 {
+    struct mod *mod = (struct mod *) handle;
+
     if (mod == 0)
     {
         return 0;