mirror of
https://github.com/reactos/reactos.git
synced 2024-12-28 01:55:19 +00:00
Added symbolic link expansion.
svn path=/trunk/; revision=1295
This commit is contained in:
Emanuele Aliberti
parent
6db1a5193f
commit
97b05ef460
2 changed files with 137 additions and 33 deletions
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@ -1,12 +1,13 @@
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#
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#
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#
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OBJECTS= ../common/crt0.o objdir.o
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TARGET_NAME=objdir
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OBJECTS= $(TARGET_NAME).o
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PROGS= objdir.exe
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PROGS= $(TARGET_NAME).exe
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BASE_CFLAGS = -I../../include
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BASE_CFLAGS = -I../../include -g
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LIB_BASE=../../lib
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LIBS = \
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$(LIB_BASE)/ntdll/ntdll.a \
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@ -18,9 +19,9 @@ all: $(PROGS)
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.phony: all
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clean:
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- $(RM) objdir.o
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- $(RM) objdir.exe
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- $(RM) objdir.sym
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- $(RM) $(TARGET_NAME).o
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- $(RM) $(TARGET_NAME).exe
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- $(RM) $(TARGET_NAME).sym
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.phony: clean
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@ -42,9 +43,9 @@ else
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$(CP) $* ../../$(DIST_DIR)/apps/$*
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endif
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objdir.exe: $(OBJECTS) $(LIBS)
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$(LD) $(OBJECTS) $(LIBS) -o objdir.exe
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$(NM) --numeric-sort objdir.exe > objdir.sym
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$(TARGET_NAME).exe: $(OBJECTS) $(LIBS)
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$(CC) $(OBJECTS) $(LIBS) -o $(TARGET_NAME).exe
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$(NM) --numeric-sort $(TARGET_NAME).exe > $(TARGET_NAME).sym
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include ../../rules.mak
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@ -1,4 +1,4 @@
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/* $Id: objdir.c,v 1.4 2000/08/08 17:42:33 ekohl Exp $
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/* $Id: objdir.c,v 1.5 2000/08/11 17:18:31 ea Exp $
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*
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* DESCRIPTION: Object Manager Simple Explorer
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* PROGRAMMER: David Welch
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@ -6,6 +6,9 @@
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* 2000-04-30 (ea)
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* Added directory enumeration.
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* (tested under nt4sp4/x86)
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* 2000-08-11 (ea)
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* Added symbolic link expansion.
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* (tested under nt4sp4/x86)
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*/
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#include <ddk/ntddk.h>
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@ -14,22 +17,8 @@
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#include <stdio.h>
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#include <stdlib.h>
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#define MAX_TYPE 64
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typedef
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struct _DIRECTORY_ENTRY_HEADER
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{
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UNICODE_STRING Name;
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UNICODE_STRING Type;
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} DIRECTORY_ENTRY_HEADER;
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struct
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{
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DIRECTORY_ENTRY_HEADER Entry;
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WCHAR Buffer [MAX_PATH + MAX_TYPE + 2];
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} DirectoryEntry;
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BYTE DirectoryEntry [(2 * MAX_PATH) + sizeof (OBJDIR_INFORMATION)];
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POBJDIR_INFORMATION pDirectoryEntry = (POBJDIR_INFORMATION) DirectoryEntry;
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static
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@ -41,6 +30,10 @@ StatusToName (NTSTATUS Status)
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switch (Status)
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{
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case STATUS_BUFFER_TOO_SMALL:
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return "STATUS_BUFFER_TOO_SMALL";
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case STATUS_INVALID_PARAMETER:
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return "STATUS_INVALID_PARAMETER";
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case STATUS_OBJECT_NAME_INVALID:
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return "STATUS_OBJECT_NAME_INVALID";
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case STATUS_OBJECT_NAME_NOT_FOUND:
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@ -53,6 +46,80 @@ StatusToName (NTSTATUS Status)
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}
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BOOL
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STDCALL
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ExpandSymbolicLink (
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IN PUNICODE_STRING DirectoryName,
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IN PUNICODE_STRING SymbolicLinkName,
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IN OUT PUNICODE_STRING TargetObjectName
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)
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{
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NTSTATUS Status;
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HANDLE hSymbolicLink;
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OBJECT_ATTRIBUTES oa;
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UNICODE_STRING Path;
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WCHAR PathBuffer [MAX_PATH];
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ULONG DataWritten = 0;
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Path.Buffer = PathBuffer;
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Path.Length = 0;
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Path.MaximumLength = sizeof PathBuffer;
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RtlCopyUnicodeString (& Path, DirectoryName);
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if (L'\\' != Path.Buffer [(Path.Length / sizeof Path.Buffer[0]) - 1])
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{
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RtlAppendUnicodeToString (& Path, L"\\");
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}
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RtlAppendUnicodeStringToString (& Path, SymbolicLinkName);
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oa.Length = sizeof (OBJECT_ATTRIBUTES);
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oa.ObjectName = & Path;
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oa.Attributes = 0; /* OBJ_CASE_INSENSITIVE; */
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oa.RootDirectory = NULL;
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oa.SecurityDescriptor = NULL;
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oa.SecurityQualityOfService = NULL;
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Status = NtOpenSymbolicLinkObject(
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& hSymbolicLink,
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SYMBOLIC_LINK_QUERY, /* 0x20001 */
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& oa
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);
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if (!NT_SUCCESS(Status))
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{
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printf (
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"Failed to open SymbolicLink object (Status: %s)\n",
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StatusToName (Status)
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);
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return FALSE;
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}
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TargetObjectName->Length = TargetObjectName->MaximumLength;
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memset (
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TargetObjectName->Buffer,
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0,
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TargetObjectName->MaximumLength
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);
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Status = NtQuerySymbolicLinkObject(
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hSymbolicLink,
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TargetObjectName,
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& DataWritten
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);
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if (!NT_SUCCESS(Status))
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{
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printf (
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"Failed to query SymbolicLink object (Status: %s)\n",
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StatusToName (Status)
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);
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NtClose (hSymbolicLink);
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return FALSE;
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}
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NtClose (hSymbolicLink);
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return TRUE;
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}
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int main(int argc, char* argv[])
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{
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UNICODE_STRING DirectoryNameW;
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@ -62,6 +129,14 @@ int main(int argc, char* argv[])
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HANDLE DirectoryHandle;
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ULONG BytesReturned = 0;
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ULONG EntryCount = 0;
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/* For expanding symbolic links */
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WCHAR TargetName [2 * MAX_PATH];
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UNICODE_STRING TargetObjectName = {
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sizeof TargetName,
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sizeof TargetName,
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TargetName
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};
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/*
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* Check user arguments.
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@ -117,7 +192,7 @@ int main(int argc, char* argv[])
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*/
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Status = NtQueryDirectoryObject (
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DirectoryHandle,
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(POBJDIR_INFORMATION)& DirectoryEntry,
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pDirectoryEntry,
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sizeof DirectoryEntry,
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TRUE,
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TRUE,
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@ -136,14 +211,42 @@ int main(int argc, char* argv[])
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wprintf (L"%d entries:\n", EntryCount);
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while (STATUS_NO_MORE_ENTRIES != Status)
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{
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wprintf (
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L"%-16s %s\n",
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DirectoryEntry.Entry.Type.Buffer,
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DirectoryEntry.Entry.Name.Buffer
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);
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if (0 == wcscmp (L"SymbolicLink", pDirectoryEntry->ObjectTypeName.Buffer))
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{
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if (TRUE == ExpandSymbolicLink (
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& DirectoryNameW,
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& pDirectoryEntry->ObjectName,
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& TargetObjectName
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)
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)
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{
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wprintf (
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L"%-16s %s -> %s\n",
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pDirectoryEntry->ObjectTypeName.Buffer,
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pDirectoryEntry->ObjectName.Buffer,
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TargetObjectName.Buffer
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);
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}
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else
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{
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wprintf (
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L"%-16s %s -> (error!)\n",
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pDirectoryEntry->ObjectTypeName.Buffer,
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pDirectoryEntry->ObjectName.Buffer
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);
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}
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}
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else
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{
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wprintf (
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L"%-16s %s\n",
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pDirectoryEntry->ObjectTypeName.Buffer,
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pDirectoryEntry->ObjectName.Buffer
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);
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}
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Status = NtQueryDirectoryObject (
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DirectoryHandle,
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(POBJDIR_INFORMATION)& DirectoryEntry,
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pDirectoryEntry,
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sizeof DirectoryEntry,
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TRUE,
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FALSE,
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