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kernelbase: Use FSCTL_GET_OBJECT_ID to compare file identities. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2020-07-16 09:14:56 +02:00
parent 14994715e9
commit d1f83537e7
1 changed files with 4 additions and 4 deletions
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8
dlls/kernelbase/file.c
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@ -473,12 +473,12 @@ DWORD file_name_WtoA( LPCWSTR src, INT srclen, LPSTR dest, INT destlen )
*/
static BOOL is_same_file( HANDLE h1, HANDLE h2 )
{
FILE_ID_INFORMATION id1, id2;
FILE_OBJECTID_BUFFER id1, id2;
IO_STATUS_BLOCK io;
return !NtQueryInformationFile( h1, &io, &id1, sizeof(id1), FileIdInformation ) &&
!NtQueryInformationFile( h2, &io, &id2, sizeof(id2), FileIdInformation ) &&
!memcmp( &id1, &id2, sizeof(FILE_ID_INFORMATION) );
return (!NtFsControlFile( h1, 0, NULL, NULL, &io, FSCTL_GET_OBJECT_ID, NULL, 0, &id1, sizeof(id1) ) &&
!NtFsControlFile( h2, 0, NULL, NULL, &io, FSCTL_GET_OBJECT_ID, NULL, 0, &id2, sizeof(id2) ) &&
!memcmp( &id1.ObjectId, &id2.ObjectId, sizeof(id1.ObjectId) ));
}