1 files changed, 131 insertions, 0 deletions
diff --git a/other-licenses/nsis/Contrib/ExDLL/exdllutil.cpp b/other-licenses/nsis/Contrib/ExDLL/exdllutil.cpp
new file mode 100644
index 0000000000..f1413767aa
--- /dev/null
+++ b/other-licenses/nsis/Contrib/ExDLL/exdllutil.cpp
@@ -0,0 +1,131 @@
+// Unicode support by Jim Park -- 08/23/2007
+
+#include <windows.h>
+#include "exdllutil.h"
+
+// utility functions (not required but often useful)
+static int __stdcall popstring(TCHAR *str)
+{
+  stack_t *th;
+  if (!g_stacktop || !*g_stacktop) return 1;
+  th=(*g_stacktop);
+  lstrcpy(str,th->text);
+  *g_stacktop = th->next;
+  GlobalFree((HGLOBAL)th);
+  return 0;
+}
+
+static void __stdcall pushstring(const TCHAR *str)
+{
+  stack_t *th;
+  if (!g_stacktop) return;
+  th=(stack_t*)GlobalAlloc(GPTR,(sizeof(stack_t)+(g_stringsize)*sizeof(TCHAR)));
+  lstrcpyn(th->text,str,g_stringsize);
+  th->next=*g_stacktop;
+  *g_stacktop=th;
+}
+
+static TCHAR * __stdcall getuservariable(const int varnum)
+{
+  if (varnum < 0 || varnum >= __INST_LAST) return NULL;
+  return g_variables+varnum*g_stringsize;
+}
+
+static void __stdcall setuservariable(const int varnum, const TCHAR *var)
+{
+	if (var != NULL && varnum >= 0 && varnum < __INST_LAST) 
+		lstrcpy(g_variables + varnum*g_stringsize, var);
+}
+
+#ifdef _UNICODE
+static int __stdcall PopStringA(char* ansiStr)
+{
+   wchar_t* wideStr = (wchar_t*) GlobalAlloc(GPTR, g_stringsize*sizeof(wchar_t));
+   int rval = popstring(wideStr);
+   WideCharToMultiByte(CP_ACP, 0, wideStr, -1, ansiStr, g_stringsize, NULL, NULL);
+   GlobalFree((HGLOBAL)wideStr);
+   return rval;
+}
+
+static void __stdcall PushStringA(const char* ansiStr)
+{
+   wchar_t* wideStr = (wchar_t*) GlobalAlloc(GPTR, g_stringsize*sizeof(wchar_t));
+   MultiByteToWideChar(CP_ACP, 0, ansiStr, -1, wideStr, g_stringsize);
+   pushtring(wideStr);
+   GlobalFree((HGLOBAL)wideStr);
+   return;
+}
+
+static void __stdcall GetUserVariableW(const int varnum, wchar_t* wideStr)
+{
+   lstrcpyW(wideStr, getuservariable(varnum));
+}
+
+static void __stdcall GetUserVariableA(const int varnum, char* ansiStr)
+{
+   wchar_t* wideStr = getuservariable(varnum);
+   WideCharToMultiByte(CP_ACP, 0, wideStr, -1, ansiStr, g_stringsize, NULL, NULL);
+}
+
+static void __stdcall SetUserVariableA(const int varnum, const char* ansiStr)
+{
+   if (ansiStr != NULL && varnum >= 0 && varnum < __INST_LAST)
+   {
+      wchar_t* wideStr = g_variables + varnum * g_stringsize;
+      MultiByteToWideChar(CP_ACP, 0, ansiStr, -1, wideStr, g_stringsize);
+   }
+}
+
+#else
+// ANSI defs
+static int __stdcall PopStringW(wchar_t* wideStr)
+{
+   char* ansiStr = (char*) GlobalAlloc(GPTR, g_stringsize);
+   int rval = popstring(ansiStr);
+   MultiByteToWideChar(CP_ACP, 0, ansiStr, -1, wideStr, g_stringsize);
+   GlobalFree((HGLOBAL)ansiStr);
+   return rval;
+}
+
+static void __stdcall PushStringW(wchar_t* wideStr)
+{
+   char* ansiStr = (char*) GlobalAlloc(GPTR, g_stringsize);
+   WideCharToMultiByte(CP_ACP, 0, wideStr, -1, ansiStr, g_stringsize, NULL, NULL);
+   pushstring(ansiStr);
+   GlobalFree((HGLOBAL)ansiStr);
+}
+
+static void __stdcall GetUserVariableW(const int varnum, wchar_t* wideStr)
+{
+   char* ansiStr = getuservariable(varnum);
+   MultiByteToWideChar(CP_ACP, 0, ansiStr, -1, wideStr, g_stringsize);
+}
+
+static void __stdcall GetUserVariableA(const int varnum, char* ansiStr)
+{
+   lstrcpyA(ansiStr, getuservariable(varnum));
+}
+
+static void __stdcall SetUserVariableW(const int varnum, const wchar_t* wideStr)
+{
+   if (wideStr != NULL && varnum >= 0 && varnum < __INST_LAST)
+   {
+      char* ansiStr = g_variables + varnum * g_stringsize;
+      WideCharToMultiByte(CP_ACP, 0, wideStr, -1, ansiStr, g_stringsize, NULL, NULL);
+   }
+}
+#endif
+
+static BOOL __stdcall IsUnicode(void)
+{
+#ifdef _UNICODE
+   return TRUE;
+#else
+   return FALSE;
+#endif
+}
+
+static TCHAR* __stdcall AllocString()
+{
+   return (TCHAR*) GlobalAlloc(GPTR, g_stringsize*sizeof(TCHAR));
+}