Alexandre Julliard : kernel32: Move Unix environment initialization to ntdll.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: a511057f7e27ebac54fbe43e2ed4f394cae5bef2
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=a511057f7e27ebac54fbe43e2ed4f394cae5bef2

Author: Alexandre Julliard <julliard at winehq.org>
Date:   Tue Oct 22 10:04:51 2019 +0200

kernel32: Move Unix environment initialization to ntdll.

Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/kernel32/process.c | 58 +--------------------------------------
 dlls/ntdll/env.c        | 72 +++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 73 insertions(+), 57 deletions(-)

diff --git a/dlls/kernel32/process.c b/dlls/kernel32/process.c
index 1f71a848a3..d03d147d95 100644
--- a/dlls/kernel32/process.c
+++ b/dlls/kernel32/process.c
@@ -66,13 +66,6 @@
 WINE_DEFAULT_DEBUG_CHANNEL(process);
 WINE_DECLARE_DEBUG_CHANNEL(relay);
 
-#ifdef __APPLE__
-extern char **__wine_get_main_environment(void);
-#else
-extern char **__wine_main_environ;
-static char **__wine_get_main_environment(void) { return __wine_main_environ; }
-#endif
-
 typedef struct
 {
     LPSTR lpEnvAddress;
@@ -455,52 +448,6 @@ static BOOL find_exe_file( const WCHAR *name, WCHAR *buffer, int buflen, HANDLE
 }
 
 
-/***********************************************************************
- *           build_initial_environment
- *
- * Build the Win32 environment from the Unix environment
- */
-static BOOL build_initial_environment(void)
-{
-    SIZE_T size = 1;
-    char **e;
-    WCHAR *p, *endptr;
-    void *ptr;
-    char **env = __wine_get_main_environment();
-
-    /* Compute the total size of the Unix environment */
-    for (e = env; *e; e++)
-    {
-        if (is_special_env_var( *e )) continue;
-        size += MultiByteToWideChar( CP_UNIXCP, 0, *e, -1, NULL, 0 );
-    }
-    size *= sizeof(WCHAR);
-
-    if (!(ptr = RtlAllocateHeap( GetProcessHeap(), 0, size ))) return FALSE;
-    NtCurrentTeb()->Peb->ProcessParameters->Environment = p = ptr;
-    endptr = p + size / sizeof(WCHAR);
-
-    /* And fill it with the Unix environment */
-    for (e = env; *e; e++)
-    {
-        char *str = *e;
-
-        /* skip Unix special variables and use the Wine variants instead */
-        if (!strncmp( str, "WINE", 4 ))
-        {
-            if (is_special_env_var( str + 4 )) str += 4;
-            else if (!strncmp( str, "WINEPRELOADRESERVE=", 19 )) continue;  /* skip it */
-        }
-        else if (is_special_env_var( str )) continue;  /* skip it */
-
-        MultiByteToWideChar( CP_UNIXCP, 0, str, -1, p, endptr - p );
-        p += strlenW(p) + 1;
-    }
-    *p = 0;
-    return TRUE;
-}
-
-
 /***********************************************************************
  *           set_registry_variables
  *
@@ -1255,11 +1202,8 @@ void * CDECL __wine_kernel_init(void)
 
     LOCALE_Init();
 
-    if (!params->Environment)
+    if (!peb->ProcessParameters->WindowTitle.Buffer)
     {
-        /* Copy the parent environment */
-        if (!build_initial_environment()) exit(1);
-
         /* convert old configuration to new format */
         convert_old_config();
 
diff --git a/dlls/ntdll/env.c b/dlls/ntdll/env.c
index 7b5f370083..64bd9b15a3 100644
--- a/dlls/ntdll/env.c
+++ b/dlls/ntdll/env.c
@@ -35,6 +35,7 @@
 #define WIN32_NO_STATUS
 #include "windef.h"
 #include "winternl.h"
+#include "wine/library.h"
 #include "wine/unicode.h"
 #include "wine/debug.h"
 #include "ntdll_misc.h"
@@ -55,6 +56,76 @@ static inline SIZE_T get_env_length( const WCHAR *env )
     return end + 1 - env;
 }
 
+#ifdef __APPLE__
+extern char **__wine_get_main_environment(void);
+#else
+extern char **__wine_main_environ;
+static char **__wine_get_main_environment(void) { return __wine_main_environ; }
+#endif
+
+
+/***********************************************************************
+ *           is_special_env_var
+ *
+ * Check if an environment variable needs to be handled specially when
+ * passed through the Unix environment (i.e. prefixed with "WINE").
+ */
+static inline BOOL is_special_env_var( const char *var )
+{
+    return (!strncmp( var, "PATH=", sizeof("PATH=")-1 ) ||
+            !strncmp( var, "PWD=", sizeof("PWD=")-1 ) ||
+            !strncmp( var, "HOME=", sizeof("HOME=")-1 ) ||
+            !strncmp( var, "TEMP=", sizeof("TEMP=")-1 ) ||
+            !strncmp( var, "TMP=", sizeof("TMP=")-1 ) ||
+            !strncmp( var, "QT_", sizeof("QT_")-1 ) ||
+            !strncmp( var, "VK_", sizeof("VK_")-1 ));
+}
+
+
+/***********************************************************************
+ *           build_initial_environment
+ *
+ * Build the Win32 environment from the Unix environment
+ */
+static WCHAR *build_initial_environment( char **env )
+{
+    SIZE_T size = 1;
+    char **e;
+    WCHAR *p, *ptr;
+
+    /* compute the total size of the Unix environment */
+
+    for (e = env; *e; e++)
+    {
+        if (is_special_env_var( *e )) continue;
+        size += ntdll_umbstowcs( 0, *e, strlen(*e) + 1, NULL, 0 );
+    }
+
+    if (!(ptr = RtlAllocateHeap( GetProcessHeap(), 0, size * sizeof(WCHAR) ))) return NULL;
+    p = ptr;
+
+    /* and fill it with the Unix environment */
+
+    for (e = env; *e; e++)
+    {
+        char *str = *e;
+
+        /* skip Unix special variables and use the Wine variants instead */
+        if (!strncmp( str, "WINE", 4 ))
+        {
+            if (is_special_env_var( str + 4 )) str += 4;
+            else if (!strncmp( str, "WINEPRELOADRESERVE=", 19 )) continue;  /* skip it */
+        }
+        else if (is_special_env_var( str )) continue;  /* skip it */
+
+        ntdll_umbstowcs( 0, str, strlen(str) + 1, p, size - (p - ptr) );
+        p += strlenW(p) + 1;
+    }
+    *p = 0;
+    return ptr;
+}
+
+
 /***********************************************************************
  *           get_current_directory
  *
@@ -644,6 +715,7 @@ void init_user_process_params( SIZE_T data_size )
             return;
 
         NtCurrentTeb()->Peb->ProcessParameters = params;
+        params->Environment = build_initial_environment( __wine_get_main_environment() );
         get_current_directory( &params->CurrentDirectory.DosPath );
 
         if (isatty(0) || isatty(1) || isatty(2))