Adding Unicode support to System plugin

git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@6050 212acab6-be3b-0410-9dea-997c60f758d6

Contrib/System/Source/Buffers.c

@@ -1,3 +1,5 @@
+// Unicode support by Jim Park -- 08/23/2007
+
 #include "stdafx.h"
 #include "Plugin.h"
 #include "System.h"
@@ -23,6 +25,18 @@ PLUGINFUNCTIONSHORT(Alloc)
 }
 PLUGINFUNCTIONEND
 
+PLUGINFUNCTIONSHORT(StrAlloc)
+{
+    int size;
+    if ((size = popint64()) == 0)
+    {
+        system_pushint(0);
+        return;
+    }
+    system_pushint((int) GlobalAlloc(GPTR, size * sizeof(TCHAR)));
+}
+PLUGINFUNCTIONEND
+
 PLUGINFUNCTIONSHORT(Copy)
 {
     int size = 0;

Contrib/System/Source/Plugin.c

@@ -14,7 +14,7 @@ TCHAR *AllocString()
 
 TCHAR *AllocStr(TCHAR *str)
 {
-    return lstrcpy(AllocString(), str);
+    return lstrcpyn(AllocString(), str, g_stringsize);
 }
 
 TCHAR* system_popstring()

Contrib/System/Source/System.h

@@ -47,6 +47,11 @@
 #define PAT_WSTRING     4
 #define PAT_GUID        5
 #define PAT_CALLBACK    6
+#ifdef _UNICODE
+#define PAT_TSTRING     PAT_WSTRING
+#else
+#define PAT_TSTRING     PAT_STRING
+#endif
 
 // Input/Output Source/Destination
 #define IOT_NONE    0