Michael Müller : ntdll: Return STATUS_OBJECT_NAME_INVALID in wine_nt_to_unix_file_name for prefix-only paths.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 00d966cd3a8112dee499ff09ace8a3792d0a430a
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=00d966cd3a8112dee499ff09ac...

Author: Michael Müller 
Date:   Fri Sep 25 13:35:58 2015 +0200

ntdll: Return STATUS_OBJECT_NAME_INVALID in wine_nt_to_unix_file_name for prefix-only paths.

Signed-off-by: Michael Müller 
Signed-off-by: Sebastian Lackner

---

dlls/kernel32/tests/file.c | 2 +-
 dlls/ntdll/directory.c     | 6 ++++--
 dlls/ntdll/tests/file.c    | 8 ++++----
 3 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/dlls/kernel32/tests/file.c b/dlls/kernel32/tests/file.c
index 61ef8af..ca49863 100644
--- a/dlls/kernel32/tests/file.c
+++ b/dlls/kernel32/tests/file.c
@@ -4661,7 +4661,7 @@ static void test_GetFileAttributesExW(void)
     SetLastError(0xdeadbeef);
     ret = GetFileAttributesExW(path1, GetFileExInfoStandard, &info);
     ok(!ret, "GetFileAttributesExW succeeded\n");
-    todo_wine ok(GetLastError() == ERROR_INVALID_NAME, "Expected error ERROR_INVALID_NAME, got %u\n", GetLastError());
+    ok(GetLastError() == ERROR_INVALID_NAME, "Expected error ERROR_INVALID_NAME, got %u\n", GetLastError());

SetLastError(0xdeadbeef);
     ret = GetFileAttributesExW(path2, GetFileExInfoStandard, &info);
diff --git a/dlls/ntdll/directory.c b/dlls/ntdll/directory.c
index 0e02f2e..f589621 100644
--- a/dlls/ntdll/directory.c
+++ b/dlls/ntdll/directory.c
@@ -2762,11 +2762,11 @@ static inline int get_dos_prefix_len( const UNICODE_STRING *name )
     static const WCHAR nt_prefixW[] = {'\','?','?','\'};
     static const WCHAR dosdev_prefixW[] = {'\','D','o','s','D','e','v','i','c','e','s','\'};

-    if (name->Length > sizeof(nt_prefixW) &&
+    if (name->Length >= sizeof(nt_prefixW) &&
         !memcmp( name->Buffer, nt_prefixW, sizeof(nt_prefixW) ))
         return sizeof(nt_prefixW) / sizeof(WCHAR);

-    if (name->Length > sizeof(dosdev_prefixW) &&
+    if (name->Length >= sizeof(dosdev_prefixW) &&
         !memicmpW( name->Buffer, dosdev_prefixW, sizeof(dosdev_prefixW)/sizeof(WCHAR) ))
         return sizeof(dosdev_prefixW) / sizeof(WCHAR);

@@ -3132,6 +3132,8 @@ NTSTATUS CDECL wine_nt_to_unix_file_name( const UNICODE_STRING *nameW, ANSI_STRI
     name += pos;
     name_len -= pos;

+    if (!name_len) return STATUS_OBJECT_NAME_INVALID;
+
     /* check for sub-directory */
     for (pos = 0; pos < name_len; pos++)
     {
diff --git a/dlls/ntdll/tests/file.c b/dlls/ntdll/tests/file.c
index 6602581..1afb9c8 100644
--- a/dlls/ntdll/tests/file.c
+++ b/dlls/ntdll/tests/file.c
@@ -318,8 +318,8 @@ static void create_file_test(void)
         "open %s failed %x\n", wine_dbgstr_w(nameW.Buffer), status );

status = pNtQueryFullAttributesFile( &attr, &info );
-    todo_wine ok( status == STATUS_OBJECT_NAME_INVALID,
-                  "query %s failed %x\n", wine_dbgstr_w(nameW.Buffer), status );
+    ok( status == STATUS_OBJECT_NAME_INVALID,
+        "query %s failed %x\n", wine_dbgstr_w(nameW.Buffer), status );

pRtlInitUnicodeString( &nameW, pathInvalidDosW );
     status = pNtCreateFile( &dir, GENERIC_READ|SYNCHRONIZE, &attr, &io, NULL, 0,
@@ -329,8 +329,8 @@ static void create_file_test(void)
         "open %s failed %x\n", wine_dbgstr_w(nameW.Buffer), status );

status = pNtQueryFullAttributesFile( &attr, &info );
-    todo_wine ok( status == STATUS_OBJECT_NAME_INVALID,
-                  "query %s failed %x\n", wine_dbgstr_w(nameW.Buffer), status );
+    ok( status == STATUS_OBJECT_NAME_INVALID,
+        "query %s failed %x\n", wine_dbgstr_w(nameW.Buffer), status );
 }

static void open_file_test(void)