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[KERNEL32]: CreateHardLinkW was not setting last error on failure.

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[KERNEL32]: Cleanup/format/comment/annotate CreateHardLink*.

svn path=/trunk/; revision=55790
This commit is contained in:
Alex Ionescu 2012-02-21 19:18:57 +00:00
parent 49103eac64
commit 8c1ab63ced
1 changed files with 61 additions and 57 deletions
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110
reactos/dll/win32/kernel32/client/file/hardlink.c
View file

@ -13,18 +13,17 @@
#include <k32.h>
#define NDEBUG
#include <debug.h>
DEBUG_CHANNEL(kernel32file);
/* FUNCTIONS ****************************************************************/
/*
* @implemented
*/
BOOL WINAPI
CreateHardLinkW(LPCWSTR lpFileName,
LPCWSTR lpExistingFileName,
LPSECURITY_ATTRIBUTES lpSecurityAttributes)
BOOL
WINAPI
CreateHardLinkW(IN LPCWSTR lpFileName,
IN LPCWSTR lpExistingFileName,
IN LPSECURITY_ATTRIBUTES lpSecurityAttributes)
{
NTSTATUS Status;
BOOL Ret = FALSE;
@ -33,12 +32,13 @@ CreateHardLinkW(LPCWSTR lpFileName,
OBJECT_ATTRIBUTES ObjectAttributes;
HANDLE hTarget = INVALID_HANDLE_VALUE;
PFILE_LINK_INFORMATION LinkInformation = NULL;
UNICODE_STRING LinkTarget = {0, 0, NULL}, LinkName = {0, 0, NULL};
UNICODE_STRING LinkTarget, LinkName;
TRACE("CreateHardLinkW: %S, %S, %p\n", lpFileName, lpExistingFileName, lpSecurityAttributes);
/* Initialize */
LinkTarget.Buffer = LinkName.Buffer = NULL;
/* Validate parameters */
if(!lpFileName || !lpExistingFileName)
if (!(lpFileName) || !(lpExistingFileName))
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
@ -47,8 +47,12 @@ CreateHardLinkW(LPCWSTR lpFileName,
_SEH2_TRY
{
/* Get target UNC path */
if (!RtlDosPathNameToNtPathName_U(lpExistingFileName, &LinkTarget, NULL, NULL))
if (!RtlDosPathNameToNtPathName_U(lpExistingFileName,
&LinkTarget,
NULL,
NULL))
{
/* Set the error and fail */
SetLastError(ERROR_PATH_NOT_FOUND);
_SEH2_LEAVE;
}
@ -58,8 +62,9 @@ CreateHardLinkW(LPCWSTR lpFileName,
&LinkTarget,
OBJ_CASE_INSENSITIVE,
NULL,
(lpSecurityAttributes ? lpSecurityAttributes->lpSecurityDescriptor : NULL));
lpSecurityAttributes ?
lpSecurityAttributes->lpSecurityDescriptor :
NULL);
Status = NtOpenFile(&hTarget,
SYNCHRONIZE | FILE_WRITE_ATTRIBUTES,
&ObjectAttributes,
@ -68,6 +73,7 @@ CreateHardLinkW(LPCWSTR lpFileName,
FILE_SYNCHRONOUS_IO_NONALERT | FILE_OPEN_REPARSE_POINT);
if (!NT_SUCCESS(Status))
{
/* Convert the error and fail */
BaseSetLastNTError(Status);
_SEH2_LEAVE;
}
@ -75,25 +81,26 @@ CreateHardLinkW(LPCWSTR lpFileName,
/* Get UNC path name for link */
if (!RtlDosPathNameToNtPathName_U(lpFileName, &LinkName, NULL, NULL))
{
/* Set the error and fail */
SetLastError(ERROR_PATH_NOT_FOUND);
_SEH2_LEAVE;
}
/* Prepare data for link */
/* Allocate data for link */
NeededSize = sizeof(FILE_LINK_INFORMATION) + LinkName.Length;
LinkInformation = RtlAllocateHeap(RtlGetProcessHeap(), 0, NeededSize);
if (!LinkInformation)
{
/* We're out of memory */
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
_SEH2_LEAVE;
}
/* Setup data for link and create it */
RtlMoveMemory(LinkInformation->FileName, LinkName.Buffer, LinkName.Length);
LinkInformation->ReplaceIfExists = FALSE;
LinkInformation->RootDirectory = 0;
LinkInformation->FileNameLength = LinkName.Length;
/* Create hard link */
Status = NtSetInformationFile(hTarget,
&IoStatusBlock,
LinkInformation,
@ -101,69 +108,66 @@ CreateHardLinkW(LPCWSTR lpFileName,
FileLinkInformation);
if (NT_SUCCESS(Status))
{
/* Set success code */
Ret = TRUE;
}
else
{
/* Convert error code and return default (FALSE) */
BaseSetLastNTError(Status);
}
}
_SEH2_FINALLY
{
if (LinkTarget.Buffer)
{
RtlFreeHeap(RtlGetProcessHeap(), 0, LinkTarget.Buffer);
}
if (hTarget != INVALID_HANDLE_VALUE)
{
NtClose(hTarget);
}
if (LinkName.Buffer)
{
RtlFreeHeap(RtlGetProcessHeap(), 0, LinkName.Buffer);
}
if (LinkInformation)
{
RtlFreeHeap(RtlGetProcessHeap(), 0, LinkInformation);
}
/* Cleanup all allocations */
if (LinkTarget.Buffer) RtlFreeHeap(RtlGetProcessHeap(), 0, LinkTarget.Buffer);
if (hTarget != INVALID_HANDLE_VALUE) NtClose(hTarget);
if (LinkName.Buffer) RtlFreeHeap(RtlGetProcessHeap(), 0, LinkName.Buffer);
if (LinkInformation) RtlFreeHeap(RtlGetProcessHeap(), 0, LinkInformation);
}
_SEH2_END;
return Ret;
}
/*
* @implemented
*/
BOOL WINAPI
CreateHardLinkA(LPCSTR lpFileName,
LPCSTR lpExistingFileName,
LPSECURITY_ATTRIBUTES lpSecurityAttributes)
BOOL
WINAPI
CreateHardLinkA(IN LPCSTR lpFileName,
IN LPCSTR lpExistingFileName,
IN LPSECURITY_ATTRIBUTES lpSecurityAttributes)
{
BOOL Ret;
PUNICODE_STRING lpFileNameW;
UNICODE_STRING ExistingFileNameW;
/* Convert the filename to unicode, using MAX_PATH limitations */
lpFileNameW = Basep8BitStringToStaticUnicodeString(lpFileName);
if (!lpFileNameW)
if (!lpFileNameW) return FALSE;
/* Check if there's an existing name as well */
if (lpExistingFileName)
{
/* We're already using the static string above, so do this dynamically */
if (!Basep8BitStringToDynamicUnicodeString(&ExistingFileNameW,
lpExistingFileName))
{
/* Out of memory -- fail */
return FALSE;
}
if (!lpExistingFileName)
}
else
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
/* No existing file name */
ExistingFileNameW.Buffer = NULL;
}
if (!Basep8BitStringToDynamicUnicodeString(&ExistingFileNameW, lpExistingFileName))
{
return FALSE;
}
Ret = CreateHardLinkW(lpFileNameW->Buffer, ExistingFileNameW.Buffer, lpSecurityAttributes);
RtlFreeHeap(RtlGetProcessHeap(), 0, ExistingFileNameW.Buffer);
/* Call the Wide function, and then free our dynamic string */
Ret = CreateHardLinkW(lpFileNameW->Buffer,
ExistingFileNameW.Buffer,
lpSecurityAttributes);
RtlFreeUnicodeString(&ExistingFileNameW);
return Ret;
}