[PATCH v20 2/6] ntdll: conversion from HOSTENV to WINENV is now using whitelisting instead of blacklisting of envvars currently only envvars "WINE"<special_var> (as defined in is_special_env_var() ) are whitelisted.

[Alois SCHLOEGL]

From: Alois SCHLOEGL

---
 dlls/ntdll/unix/env.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/dlls/ntdll/unix/env.c b/dlls/ntdll/unix/env.c
index 4a705d73e24..ed3f449be46 100644
--- a/dlls/ntdll/unix/env.c
+++ b/dlls/ntdll/unix/env.c
@@ -935,6 +935,13 @@ static const char overrides_help_message[] =
  *		get_initial_environment
  *
  * Return the initial environment.
+ *  converts HOSTENV (char*) to WINENV (WCHAR*)
+ *  HOSTENV is stored in global var main_envp
+ *  WINENV is returned in *env.
+ *  pos:  returns size [in WCHAR] of win environment
+ *  size: returns size [in bytes] of host environment
+ *  return value is host env converted to win env
+      with special and dynamic envvars beeing ignored
  */
 static WCHAR *get_initial_environment( SIZE_T *pos, SIZE_T *size )
 {
@@ -964,6 +971,12 @@ static WCHAR *get_initial_environment( SIZE_T *pos, SIZE_T *size )
         }
         else if (is_special_env_var( str )) continue;  /* skip it */

+#if 1
+	// do whitelisting instead of blacklisting of envvars
+	// prevents propagating nixenv to winenv, except "WINE"+special-env-var
+	else continue;
+#endif
+
         if (is_dynamic_env_var( str )) continue;
         ptr += ntdll_umbstowcs( str, strlen(str) + 1, ptr, end - ptr );
     }