ReactOS 0.4.15-dev-7705-g2320c37
prefxsup.c File Reference
#include "npfs.h"
Include dependency graph for prefxsup.c:

Go to the source code of this file.

Macros

#define NPFS_BUGCHECK_FILE_ID   (NPFS_BUGCHECK_PREFXSUP)
 

Functions

PNP_FCB NTAPI NpFindPrefix (IN PUNICODE_STRING Name, IN ULONG CaseInsensitiveIndex, IN PUNICODE_STRING Prefix)
 
NTSTATUS NTAPI NpFindRelativePrefix (IN PNP_DCB Dcb, IN PUNICODE_STRING Name, IN ULONG CaseInsensitiveIndex, IN PUNICODE_STRING Prefix, OUT PNP_FCB *FoundFcb)
 

Macro Definition Documentation

◆ NPFS_BUGCHECK_FILE_ID

#define NPFS_BUGCHECK_FILE_ID   (NPFS_BUGCHECK_PREFXSUP)

Definition at line 14 of file prefxsup.c.

Function Documentation

◆ NpFindPrefix()

PNP_FCB NTAPI NpFindPrefix ( IN PUNICODE_STRING  Name,
IN ULONG  CaseInsensitiveIndex,
IN PUNICODE_STRING  Prefix 
)

Definition at line 20 of file prefxsup.c.

23{
26 PAGED_CODE();
27
29 Name,
31 if (!Entry) NpBugCheck(0, 0, 0);
32
34
35 Prefix->Length = Name->Length - Fcb->FullName.Length;
37 Prefix->Buffer = &Name->Buffer[Fcb->FullName.Length / sizeof(WCHAR)];
38
40 {
41 Prefix->Length -= sizeof(WCHAR);
42 Prefix->MaximumLength -= sizeof(WCHAR);
43 ++Prefix->Buffer;
44 }
45
46 return Fcb;
47}
#define PAGED_CODE()
#define OBJ_NAME_PATH_SEPARATOR
Definition: arcname_tests.c:25
_In_ PFCB Fcb
Definition: cdprocs.h:159
PNP_VCB NpVcb
Definition: strucsup.c:19
#define NpBugCheck(p1, p2, p3)
Definition: npfs.h:106
base of all file and directory entries
Definition: entries.h:83
Definition: npfs.h:229
UNICODE_PREFIX_TABLE PrefixTable
Definition: npfs.h:282
unsigned short Length
Definition: sprintf.c:451
void * Buffer
Definition: sprintf.c:453
unsigned short MaximumLength
Definition: sprintf.c:452
Definition: rtltypes.h:627
#define CONTAINING_RECORD(address, type, field)
Definition: typedefs.h:260
PUNICODE_PREFIX_TABLE_ENTRY NTAPI RtlFindUnicodePrefix(PUNICODE_PREFIX_TABLE PrefixTable, PUNICODE_STRING FullName, ULONG CaseInsensitiveIndex)
_In_ PUNICODE_STRING _In_ ULONG CaseInsensitiveIndex
Definition: rtlfuncs.h:1682
_In_ __drv_aliasesMem PSTRING Prefix
Definition: rtlfuncs.h:1630
_In_ __drv_aliasesMem PSTRING _Out_ PPREFIX_TABLE_ENTRY PrefixTableEntry
Definition: rtlfuncs.h:1631
__wchar_t WCHAR
Definition: xmlstorage.h:180

Referenced by NpFindRelativePrefix(), NpFsdCreate(), NpFsdCreateNamedPipe(), and NpWaitForNamedPipe().

◆ NpFindRelativePrefix()

NTSTATUS NTAPI NpFindRelativePrefix ( IN PNP_DCB  Dcb,
IN PUNICODE_STRING  Name,
IN ULONG  CaseInsensitiveIndex,
IN PUNICODE_STRING  Prefix,
OUT PNP_FCB FoundFcb 
)

Definition at line 51 of file prefxsup.c.

56{
59 UNICODE_STRING RootName;
61 PAGED_CODE();
62
63 Length = Name->Length;
66
67 ASSERT(Dcb->NodeType == NPFS_NTC_ROOT_DCB);
68
70 if (!Buffer)
71 {
73 }
74
76 RtlCopyMemory(Buffer + 1, Name->Buffer, Length);
77 Buffer[(Length / sizeof(WCHAR)) + 1] = UNICODE_NULL;
78
79 RootName.Length = Length + sizeof(OBJ_NAME_PATH_SEPARATOR);
81 RootName.Buffer = Buffer;
82
84
86
87 Prefix->Buffer = &Name->Buffer[(Length - Prefix->Length) / sizeof(WCHAR)];
88 *FoundFcb = Fcb;
89
90 return STATUS_SUCCESS;
91}
Definition: bufpool.h:45
_In_ PIO_STACK_LOCATION _Inout_ PFILE_OBJECT _Inout_ PVCB _Outptr_result_maybenull_ PDCB * Dcb
Definition: create.c:4140
#define NPFS_NTC_ROOT_DCB
Definition: npfs.h:113
#define NPFS_NAME_BLOCK_TAG
Definition: npfs.h:59
#define ExAllocatePoolWithTag(hernya, size, tag)
Definition: env_spec_w32.h:350
#define ExFreePool(addr)
Definition: env_spec_w32.h:352
#define PagedPool
Definition: env_spec_w32.h:308
#define ASSERT(a)
Definition: mode.c:44
PNP_FCB NTAPI NpFindPrefix(IN PUNICODE_STRING Name, IN ULONG CaseInsensitiveIndex, IN PUNICODE_STRING Prefix)
Definition: prefxsup.c:20
#define UNICODE_NULL
_In_ ULONG _In_ ULONG _In_ ULONG Length
Definition: ntddpcm.h:102
unsigned short USHORT
Definition: pedump.c:61
#define STATUS_SUCCESS
Definition: shellext.h:65
USHORT MaximumLength
Definition: env_spec_w32.h:370
#define RtlCopyMemory(Destination, Source, Length)
Definition: typedefs.h:263
uint16_t * PWCHAR
Definition: typedefs.h:56
#define STATUS_INVALID_PARAMETER
Definition: udferr_usr.h:135
#define STATUS_INSUFFICIENT_RESOURCES
Definition: udferr_usr.h:158
_In_ WDFDMATRANSACTION _In_ size_t MaximumLength

Referenced by NpFsdCreate(), and NpFsdCreateNamedPipe().