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wine-staging/patches/kernel32-GetFinalPathNameByHandle/0001-kernel32-Implement-GetFinalPathNameByHandle.patch

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From 92e7f9f4ea656ac7d33c33977a718ec651b5e6e8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michael=20M=C3=BCller?= <michael@fds-team.de>
Date: Tue, 12 Aug 2014 20:24:14 +0200
Subject: kernel32: Implement GetFinalPathNameByHandle.
---
dlls/kernel32/file.c | 182 ++++++++++++++++++++++++++++++++++++++++++++
dlls/kernel32/kernel32.spec | 2 +
include/fileapi.h | 8 ++
3 files changed, 192 insertions(+)
diff --git a/dlls/kernel32/file.c b/dlls/kernel32/file.c
index 412659b..56366b0 100644
--- a/dlls/kernel32/file.c
+++ b/dlls/kernel32/file.c
@@ -2810,3 +2810,185 @@ DWORD WINAPI K32GetDeviceDriverFileNameW(void *image_base, LPWSTR file_name, DWO
return 0;
}
+
+/***********************************************************************
+ * GetFinalPathNameByHandleW (KERNEL32.@)
+ */
+DWORD WINAPI GetFinalPathNameByHandleW(HANDLE file, LPWSTR path, DWORD charcount, DWORD flags)
+{
+ WCHAR buffer[sizeof(OBJECT_NAME_INFORMATION) + MAX_PATH + 1];
+ OBJECT_NAME_INFORMATION *info = (OBJECT_NAME_INFORMATION*)&buffer;
+ WCHAR drive_part[MAX_PATH];
+ DWORD drive_part_len;
+ NTSTATUS status;
+ DWORD result = 0;
+ ULONG dummy;
+ WCHAR *ptr;
+
+ TRACE( "(%p,%p,%d,%x)\n", file, path, charcount, flags );
+
+ /* check for invalid arguments */
+ if (!path)
+ {
+ SetLastError( ERROR_INVALID_PARAMETER );
+ return 0;
+ }
+ else if (file == INVALID_HANDLE_VALUE)
+ {
+ SetLastError( ERROR_INVALID_HANDLE );
+ return 0;
+ }
+ else if (flags & ~(FILE_NAME_OPENED | VOLUME_NAME_GUID | VOLUME_NAME_NONE | VOLUME_NAME_NT))
+ {
+ WARN("Invalid or unsupported flags: %x\n", flags);
+ SetLastError( ERROR_INVALID_PARAMETER );
+ return 0;
+ }
+
+ /* get object name */
+ status = NtQueryObject( file, ObjectNameInformation, &buffer, sizeof(buffer) - sizeof(WCHAR), &dummy );
+ if (status != STATUS_SUCCESS)
+ {
+ SetLastError( RtlNtStatusToDosError( status ) );
+ return 0;
+ }
+ else if (info->Name.Length < 4 * sizeof(WCHAR) || info->Name.Buffer[0] != '\\' ||
+ info->Name.Buffer[1] != '?' || info->Name.Buffer[2] != '?' || info->Name.Buffer[3] != '\\' )
+ {
+ FIXME("Unexpected object name: %s\n", debugstr_wn(info->Name.Buffer, info->Name.Length / sizeof(WCHAR)));
+ SetLastError( ERROR_GEN_FAILURE );
+ return 0;
+ }
+
+ /* add terminating null character, remove "\\??\\" */
+ info->Name.Buffer[info->Name.Length / sizeof(WCHAR)] = 0;
+ info->Name.Length -= 4 * sizeof(WCHAR);
+ info->Name.Buffer += 4;
+
+ /* FILE_NAME_OPENED is not supported yet, and would require Wineserver changes */
+ if (flags & FILE_NAME_OPENED)
+ {
+ FIXME("FILE_NAME_OPENED not supported\n");
+ flags &= ~FILE_NAME_OPENED;
+ }
+
+ /* Get information required for VOLUME_NAME_NONE, VOLUME_NAME_GUID and VOLUME_NAME_DOS */
+ if (flags == VOLUME_NAME_NONE || flags == VOLUME_NAME_GUID || flags == VOLUME_NAME_NT)
+ {
+ if (!GetVolumePathNameW( info->Name.Buffer, drive_part, MAX_PATH ))
+ return 0;
+
+ drive_part_len = strlenW(drive_part);
+ if (!drive_part_len || drive_part_len > strlenW(info->Name.Buffer) ||
+ drive_part[drive_part_len-1] != '\\' ||
+ strncmpiW( info->Name.Buffer, drive_part, drive_part_len ))
+ {
+ FIXME("Path %s returned by GetVolumePathNameW does not match file path %s\n",
+ debugstr_w(drive_part), debugstr_w(info->Name.Buffer));
+ SetLastError( ERROR_GEN_FAILURE );
+ return 0;
+ }
+ }
+
+ if (flags == VOLUME_NAME_NONE)
+ {
+ ptr = info->Name.Buffer + drive_part_len - 1;
+ result = strlenW(ptr);
+ if (result < charcount)
+ memcpy(path, ptr, (result + 1) * sizeof(WCHAR));
+ else result++;
+ }
+ else if (flags == VOLUME_NAME_GUID)
+ {
+ WCHAR volume_prefix[51];
+
+ /* GetVolumeNameForVolumeMountPointW sets error code on failure */
+ if (!GetVolumeNameForVolumeMountPointW( drive_part, volume_prefix, 50 ))
+ return 0;
+
+ ptr = info->Name.Buffer + drive_part_len;
+ result = strlenW(volume_prefix) + strlenW(ptr);
+ if (result < charcount)
+ {
+ path[0] = 0;
+ strcatW(path, volume_prefix);
+ strcatW(path, ptr);
+ }
+ else result++;
+ }
+ else if (flags == VOLUME_NAME_NT)
+ {
+ WCHAR nt_prefix[MAX_PATH];
+
+ /* QueryDosDeviceW sets error code on failure */
+ drive_part[drive_part_len - 1] = 0;
+ if (!QueryDosDeviceW( drive_part, nt_prefix, MAX_PATH ))
+ return 0;
+
+ ptr = info->Name.Buffer + drive_part_len - 1;
+ result = strlenW(nt_prefix) + strlenW(ptr);
+ if (result < charcount)
+ {
+ path[0] = 0;
+ strcatW(path, nt_prefix);
+ strcatW(path, ptr);
+ }
+ else result++;
+ }
+ else if (flags == VOLUME_NAME_DOS)
+ {
+ static const WCHAR dos_prefix[] = {'\\','\\','?','\\', '\0'};
+
+ result = strlenW(dos_prefix) + strlenW(info->Name.Buffer);
+ if (result < charcount)
+ {
+ path[0] = 0;
+ strcatW(path, dos_prefix);
+ strcatW(path, info->Name.Buffer);
+ }
+ else result++;
+ }
+ else
+ {
+ /* Windows crashes here, but we prefer returning ERROR_INVALID_PARAMETER */
+ WARN("Invalid combination of flags: %x\n", flags);
+ SetLastError( ERROR_INVALID_PARAMETER );
+ }
+
+ return result;
+}
+
+/***********************************************************************
+ * GetFinalPathNameByHandleA (KERNEL32.@)
+ */
+DWORD WINAPI GetFinalPathNameByHandleA(HANDLE file, LPSTR path, DWORD charcount, DWORD flags)
+{
+ WCHAR *str;
+ DWORD result;
+
+ TRACE( "(%p,%p,%d,%x)\n", file, path, charcount, flags );
+
+ if (!path || !charcount)
+ return GetFinalPathNameByHandleW(file, (LPWSTR)path, charcount, flags);
+
+ str = HeapAlloc( GetProcessHeap(), 0, charcount * sizeof(WCHAR) );
+ if (!str)
+ {
+ SetLastError( ERROR_NOT_ENOUGH_MEMORY );
+ return 0;
+ }
+
+ result = GetFinalPathNameByHandleW(file, (LPWSTR)str, charcount, flags);
+ if (result)
+ {
+ if (result < charcount)
+ {
+ result = FILE_name_WtoA( str, result, path, charcount - 1 );
+ path[result] = 0;
+ }
+ else result--; /* Why does Windows do this? */
+ }
+
+ HeapFree( GetProcessHeap(), 0, str );
+ return result;
+}
\ No newline at end of file
diff --git a/dlls/kernel32/kernel32.spec b/dlls/kernel32/kernel32.spec
index 2de2119..10a5ef3 100644
--- a/dlls/kernel32/kernel32.spec
+++ b/dlls/kernel32/kernel32.spec
@@ -538,6 +538,8 @@
@ stdcall GetFileAttributesW(wstr)
@ stdcall GetFileInformationByHandle(long ptr)
@ stdcall GetFileInformationByHandleEx(long long ptr long)
+@ stdcall GetFinalPathNameByHandleA(long ptr long long)
+@ stdcall GetFinalPathNameByHandleW(long ptr long long)
@ stdcall GetFileSize(long ptr)
@ stdcall GetFileSizeEx(long ptr)
@ stdcall GetFileTime(long ptr ptr ptr)
diff --git a/include/fileapi.h b/include/fileapi.h
index 02bbbd4..0ccf9e9 100644
--- a/include/fileapi.h
+++ b/include/fileapi.h
@@ -34,6 +34,14 @@ typedef struct _CREATEFILE2_EXTENDED_PARAMETERS {
WINBASEAPI HANDLE WINAPI CreateFile2(LPCWSTR,DWORD,DWORD,DWORD,LPCREATEFILE2_EXTENDED_PARAMETERS);
+#define FILE_NAME_NORMALIZED 0x0
+#define FILE_NAME_OPENED 0x8
+
+#define VOLUME_NAME_DOS 0x0
+#define VOLUME_NAME_GUID 0x1
+#define VOLUME_NAME_NT 0x2
+#define VOLUME_NAME_NONE 0x4
+
#ifdef __cplusplus
}
#endif
--
2.1.0
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