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changed ObLookupObject to use Parse member if nonnull

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svn path=/trunk/; revision=181
This commit is contained in:
Rex Jolliff 1999-01-20 00:19:46 +00:00
parent a1fca3d3ae
commit 5998255e83
1 changed files with 113 additions and 101 deletions
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214
reactos/ntoskrnl/ob/namespc.c
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@ -432,8 +432,12 @@ VOID ObCreateEntry(PDIRECTORY_OBJECT parent,POBJECT_HEADER Object)
InsertTailList(&parent->head,&Object->Entry);
}
NTSTATUS ObLookupObject(HANDLE rootdir, PWSTR string, PVOID* Object,
PWSTR* UnparsedSection, ULONG Attributes)
NTSTATUS
ObLookupObject(HANDLE rootdir,
PWSTR string,
PVOID* Object,
PWSTR* UnparsedSection,
ULONG Attributes)
/*
* FUNCTION: Lookup an object within the system namespc
* ARGUMENTS:
@ -443,112 +447,120 @@ NTSTATUS ObLookupObject(HANDLE rootdir, PWSTR string, PVOID* Object,
* On failure NULL
*/
{
PWSTR current;
PWSTR next;
PDIRECTORY_OBJECT current_dir = NULL;
NTSTATUS Status;
PWSTR current;
PWSTR next;
PDIRECTORY_OBJECT current_dir = NULL;
NTSTATUS Status;
DPRINT("ObLookupObject(rootdir %x, string %x, string %w, Object %x, "
"UnparsedSection %x)\n",rootdir,string,string,Object,
UnparsedSection);
DPRINT("ObLookupObject(rootdir %x, string %x, string %w, Object %x, "
"UnparsedSection %x)\n",rootdir,string,string,Object,
UnparsedSection);
*UnparsedSection = NULL;
*Object = NULL;
*UnparsedSection = NULL;
*Object = NULL;
if (rootdir==NULL)
{
current_dir = HEADER_TO_BODY(&(namespc_root.hdr));
}
else
{
ObReferenceObjectByHandle(rootdir,DIRECTORY_TRAVERSE,NULL,
UserMode,(PVOID*)&current_dir,NULL);
if (rootdir == NULL)
{
current_dir = HEADER_TO_BODY(&(namespc_root.hdr));
}
else
{
ObReferenceObjectByHandle(rootdir,
DIRECTORY_TRAVERSE,
NULL,
UserMode,
(PVOID*)&current_dir,
NULL);
}
/*
* Bit of a hack this
*/
if (string[0]==0)
{
*Object=current_dir;
return(STATUS_SUCCESS);
}
/*
* Bit of a hack this
*/
if (string[0] == 0)
{
*Object = current_dir;
return STATUS_SUCCESS;
}
if (string[0]!='\\')
{
DbgPrint("(%s:%d) Non absolute pathname passed to %s\n",__FILE__,
__LINE__,__FUNCTION__);
return(STATUS_UNSUCCESSFUL);
}
if (string[0] != '\\')
{
DbgPrint("Non absolute pathname passed\n");
return STATUS_UNSUCCESSFUL;
}
next = &string[0];
current = next+1;
next = string;
current = next + 1;
while (next!=NULL &&
BODY_TO_HEADER(current_dir)->ObjectType==ObDirectoryType)
{
*next = '\\';
current = next+1;
next = wcschr(next+1,'\\');
if (next!=NULL)
{
*next=0;
}
while (next != NULL &&
BODY_TO_HEADER(current_dir)->ObjectType == ObDirectoryType)
{
*next = '\\';
current = next + 1;
next = wcschr(next + 1,'\\');
if (next != NULL)
{
*next = 0;
}
DPRINT("current %w current[5] %x next %x ",current,current[5],next);
if (next!=NULL)
{
DPRINT("(next+1) %w",next+1);
}
DPRINT("\n",0);
current_dir=(PDIRECTORY_OBJECT)ObDirLookup(current_dir,current,
Attributes);
if (current_dir==NULL)
{
DbgPrint("(%s:%d) Path component %w not found\n",__FILE__,
__LINE__,current);
return(STATUS_UNSUCCESSFUL);
}
if (BODY_TO_HEADER(current_dir)->ObjectType==IoSymbolicLinkType)
{
current_dir = IoOpenSymlink(current_dir);
}
}
DPRINT("next %x\n",next);
DPRINT("current %x current %w\n",current,current);
if (next==NULL)
{
if (current_dir==NULL)
{
Status = STATUS_UNSUCCESSFUL;
}
else
{
Status = STATUS_SUCCESS;
}
}
else
{
CHECKPOINT;
*next = '\\';
*UnparsedSection = next;
if (BODY_TO_HEADER(current_dir)->ObjectType == IoDeviceType)
{
Status = STATUS_FS_QUERY_REQUIRED;
}
else
{
Status = STATUS_UNSUCCESSFUL;
}
}
CHECKPOINT;
*Object = current_dir;
DPRINT("(%s:%d) current_dir %x\n",__FILE__,__LINE__,current_dir);
return(Status);
DPRINT("current %w current[5] %x next %x ", current, current[5], next);
if (next != NULL)
{
DPRINT("(next+1) %w", next + 1);
}
DPRINT("\n",0);
current_dir = (PDIRECTORY_OBJECT)ObDirLookup(current_dir,
current,
Attributes);
if (current_dir == NULL)
{
DbgPrint("Path component %w not found\n", current);
return STATUS_UNSUCCESSFUL;
}
if (BODY_TO_HEADER(current_dir)->ObjectType == IoSymbolicLinkType)
{
current_dir = IoOpenSymlink(current_dir);
}
}
DPRINT("next %x\n",next);
DPRINT("current %x current %w\n",current,current);
if (next == NULL)
{
if (current_dir == NULL)
{
Status = STATUS_UNSUCCESSFUL;
}
else
{
Status = STATUS_SUCCESS;
}
}
else
{
CHECKPOINT;
*next = '\\';
*UnparsedSection = next;
if (BODY_TO_HEADER(current_dir)->ObjectType == IoDeviceType)
{
Status = STATUS_FS_QUERY_REQUIRED;
}
else if (BODY_TO_HEADER(current_dir)->ObjectType->Parse != NULL)
{
current_dir = BODY_TO_HEADER(current_dir)->ObjectType->
Parse(current_dir,
UnparsedSection);
Status = (current_dir != NULL) ? STATUS_SUCCESS : STATUS_UNSUCCESSFUL;
}
else
{
Status = STATUS_UNSUCCESSFUL;
}
}
CHECKPOINT;
*Object = current_dir;
DPRINT("current_dir %x\n", current_dir);
return Status;
}