Fix incorrect types

These types caused an incorrect signed/unsigned behaviour, so let's make
sure we use the appropriate type.

unix/vncserver/vncsession.c

 redir_stdio(const char *homedir, const char *display)
 {
     int fd;
-    size_t hostlen;
+    long hostlen;
     char* hostname = NULL;
     char logfile[PATH_MAX];
 

unix/x0vncserver/x0vncserver.cxx

 
 static const char* defaultDesktopName()
 {
-  size_t host_max = sysconf(_SC_HOST_NAME_MAX);
+  long host_max = sysconf(_SC_HOST_NAME_MAX);
   if (host_max < 0)
     return "";
 
   if (pwent == NULL)
     return "";
 
-  size_t len = snprintf(NULL, 0, "%s@%s", pwent->pw_name, hostname.data());
+  int len = snprintf(NULL, 0, "%s@%s", pwent->pw_name, hostname.data());
   if (len < 0)
     return "";
 

vncviewer/win32.c

 }
 
 // Layout independent keys
-static const int vkey_map[][3] = {
+static const UINT vkey_map[][3] = {
   { VK_CANCEL,              NoSymbol,       XK_Break },
   { VK_BACK,                XK_BackSpace,   NoSymbol },
   { VK_TAB,                 XK_Tab,         NoSymbol },
 // Layout dependent keys, but without useful symbols
 
 // Japanese
-static const int vkey_map_jp[][3] = {
+static const UINT vkey_map_jp[][3] = {
   { VK_KANA,                XK_Hiragana_Katakana, NoSymbol },
   { VK_KANJI,               XK_Kanji,       NoSymbol },
   { VK_OEM_ATTN,            XK_Eisu_toggle, NoSymbol },
 };
 
 // Korean
-static const int vkey_map_ko[][3] = {
+static const UINT vkey_map_ko[][3] = {
   { VK_HANGUL,              XK_Hangul,      NoSymbol },
   { VK_HANJA,               XK_Hangul_Hanja, NoSymbol },
 };
 
-static int lookup_vkey_map(UINT vkey, int extended, const int map[][3], size_t size)
+static int lookup_vkey_map(UINT vkey, int extended, const UINT map[][3], size_t size)
 {
   size_t i;
 

win/rfb_win32/RegConfig.cxx

 }
 
 void RegConfigThread::worker() {
-  DWORD result = 0;
+  BOOL result = 0;
   MSG msg;
   thread_id = GetCurrentThreadId();
   while ((result = eventMgr.getMessage(&msg, 0, 0, 0)) > 0) {}