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kernel32: Reimplement is_same_file() using FileIdInformation. 

Signed-off-by: Zebediah Figura <zfigura@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Zebediah Figura 2020-04-08 16:06:06 -05:00 committed by Alexandre Julliard
parent 54417bf8bf
commit 4b2f8c80fb
1 changed files with 6 additions and 15 deletions
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21
dlls/kernel32/path.c
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@ -257,21 +257,12 @@ DWORD WINAPI GetShortPathNameA( LPCSTR longpath, LPSTR shortpath, DWORD shortlen
static BOOL is_same_file(HANDLE h1, HANDLE h2)
{
int fd1;
BOOL ret = FALSE;
if (wine_server_handle_to_fd(h1, 0, &fd1, NULL) == STATUS_SUCCESS)
{
int fd2;
if (wine_server_handle_to_fd(h2, 0, &fd2, NULL) == STATUS_SUCCESS)
{
struct stat stat1, stat2;
if (fstat(fd1, &stat1) == 0 && fstat(fd2, &stat2) == 0)
ret = (stat1.st_dev == stat2.st_dev && stat1.st_ino == stat2.st_ino);
wine_server_release_fd(h2, fd2);
}
wine_server_release_fd(h1, fd1);
}
return ret;
FILE_ID_INFORMATION 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) );
}
/**************************************************************************