Sweden-Number/misc/toolhelp.c

438 lines
12 KiB
C

/*
* Misc Toolhelp functions
*
* Copyright 1996 Marcus Meissner
*/
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <ctype.h>
#include <assert.h>
#include "windows.h"
#include "win.h"
#include "winerror.h"
#include "process.h"
#include "tlhelp32.h"
#include "toolhelp.h"
#include "heap.h"
#include "k32obj.h"
#include "debug.h"
/*
* Support for toolhelp's snapshots. They
* are supposed to be Kernel32 Objects.
* Only the Destroy() method is implemented
*/
static void SNAPSHOT_Destroy( K32OBJ *obj );
const K32OBJ_OPS SNAPSHOT_Ops =
{
SNAPSHOT_Destroy /* destroy */
};
/* The K32 snapshot object object */
/* Process snapshot kernel32 object */
typedef struct _Process32Snapshot
{
K32OBJ header;
DWORD numProcs;
DWORD arrayCounter;
/*
* Store a reference to the PDB list.
* Insuure in the alloc and dealloc routines for this structure that
* I increment and decrement the pdb->head.refcount, so that the
* original pdb will stay around for as long as I use it, but it's
* not locked forver into memory.
*/
PDB32 **processArray;
}
SNAPSHOT_OBJECT;
/* FIXME: to make this working, we have to callback all these registered
* functions from all over the WINE code. Someone with more knowledge than
* me please do that. -Marcus
*/
static struct notify
{
HTASK16 htask;
FARPROC16 lpfnCallback;
WORD wFlags;
} *notifys = NULL;
static int nrofnotifys = 0;
static FARPROC16 HookNotify = NULL;
BOOL16 WINAPI NotifyRegister( HTASK16 htask, FARPROC16 lpfnCallback,
WORD wFlags )
{
int i;
TRACE(toolhelp, "(%x,%lx,%x) called.\n",
htask, (DWORD)lpfnCallback, wFlags );
if (!htask) htask = GetCurrentTask();
for (i=0;i<nrofnotifys;i++)
if (notifys[i].htask==htask)
break;
if (i==nrofnotifys) {
if (notifys==NULL)
notifys=(struct notify*)HeapAlloc( SystemHeap, 0,
sizeof(struct notify) );
else
notifys=(struct notify*)HeapReAlloc( SystemHeap, 0, notifys,
sizeof(struct notify)*(nrofnotifys+1));
if (!notifys) return FALSE;
nrofnotifys++;
}
notifys[i].htask=htask;
notifys[i].lpfnCallback=lpfnCallback;
notifys[i].wFlags=wFlags;
return TRUE;
}
BOOL16 WINAPI NotifyUnregister( HTASK16 htask )
{
int i;
TRACE(toolhelp, "(%x) called.\n", htask );
if (!htask) htask = GetCurrentTask();
for (i=nrofnotifys;i--;)
if (notifys[i].htask==htask)
break;
if (i==-1)
return FALSE;
memcpy(notifys+i,notifys+(i+1),sizeof(struct notify)*(nrofnotifys-i-1));
notifys=(struct notify*)HeapReAlloc( SystemHeap, 0, notifys,
(nrofnotifys-1)*sizeof(struct notify));
nrofnotifys--;
return TRUE;
}
BOOL16 WINAPI StackTraceCSIPFirst(STACKTRACEENTRY *ste, WORD wSS, WORD wCS, WORD wIP, WORD wBP)
{
return TRUE;
}
BOOL16 WINAPI StackTraceFirst(STACKTRACEENTRY *ste, HTASK16 Task)
{
return TRUE;
}
BOOL16 WINAPI StackTraceNext(STACKTRACEENTRY *ste)
{
return TRUE;
}
/***********************************************************************
* ToolHelpHook (KERNEL.341)
* see "Undocumented Windows"
*/
FARPROC16 WINAPI ToolHelpHook(FARPROC16 lpfnNotifyHandler)
{
FARPROC16 tmp;
tmp = HookNotify;
HookNotify = lpfnNotifyHandler;
/* just return previously installed notification function */
return tmp;
}
/***********************************************************************
* SNAPSHOT_Destroy
*
* Deallocate K32 snapshot objects
*/
static void SNAPSHOT_Destroy (K32OBJ *obj)
{
int i;
SNAPSHOT_OBJECT *snapshot = (SNAPSHOT_OBJECT *) obj;
assert (obj->type == K32OBJ_CHANGE);
if (snapshot->processArray)
{
for (i = 0; snapshot->processArray[i] && i <snapshot->numProcs; i++)
{
K32OBJ_DecCount (&snapshot->processArray[i]->header);
}
HeapFree (GetProcessHeap (), 0, snapshot->processArray);
snapshot->processArray = NULL;
}
obj->type = K32OBJ_UNKNOWN;
HeapFree (GetProcessHeap (), 0, snapshot);
}
/***********************************************************************
* CreateToolHelp32Snapshot (KERNEL32.179)
* see "Undocumented Windows"
*/
HANDLE32 WINAPI CreateToolhelp32Snapshot(DWORD dwFlags, DWORD
th32ProcessID)
{
HANDLE32 ssHandle;
SNAPSHOT_OBJECT *snapshot;
int numProcesses;
int i;
PDB32* pdb;
TRACE(toolhelp, "%lx & TH32CS_INHERIT (%x) = %lx %s\n", dwFlags,
TH32CS_INHERIT,
dwFlags & TH32CS_INHERIT,
dwFlags & TH32CS_INHERIT ? "TRUE" : "FALSE");
TRACE(toolhelp, "%lx & TH32CS_SNAPHEAPLIST (%x) = %lx %s\n", dwFlags,
TH32CS_SNAPHEAPLIST,
dwFlags & TH32CS_SNAPHEAPLIST,
dwFlags & TH32CS_SNAPHEAPLIST ? "TRUE" : "FALSE");
TRACE(toolhelp, "%lx & TH32CS_SNAPMODULE (%x) = %lx %s\n", dwFlags,
TH32CS_SNAPMODULE,
dwFlags & TH32CS_SNAPMODULE,
dwFlags & TH32CS_SNAPMODULE ? "TRUE" : "FALSE");
TRACE(toolhelp, "%lx & TH32CS_SNAPPROCESS (%x) = %lx %s\n", dwFlags,
TH32CS_SNAPPROCESS,
dwFlags & TH32CS_SNAPPROCESS,
dwFlags & TH32CS_SNAPPROCESS ? "TRUE" : "FALSE");
TRACE(toolhelp, "%lx & TH32CS_SNAPTHREAD (%x) = %lx %s\n", dwFlags,
TH32CS_SNAPTHREAD,
dwFlags & TH32CS_SNAPTHREAD,
dwFlags & TH32CS_SNAPTHREAD ? "TRUE" : "FALSE");
/**** FIXME: Not implmented ***/
if (dwFlags & TH32CS_INHERIT)
{
FIXME(toolhelp,"(0x%08lx (TH32CS_INHERIT),0x%08lx), stub!\n",
dwFlags,th32ProcessID);
return INVALID_HANDLE_VALUE32;
}
if (dwFlags & TH32CS_SNAPHEAPLIST)
{
FIXME(toolhelp,"(0x%08lx (TH32CS_SNAPHEAPLIST),0x%08lx), stub!\n",
dwFlags,th32ProcessID);
return INVALID_HANDLE_VALUE32;
}
if (dwFlags & TH32CS_SNAPMODULE)
{
FIXME(toolhelp,"(0x%08lx (TH32CS_SNAPMODULE),0x%08lx), stub!\n",
dwFlags,th32ProcessID);
return INVALID_HANDLE_VALUE32;
}
if (dwFlags & TH32CS_SNAPPROCESS)
{
TRACE (toolhelp, "(0x%08lx (TH32CS_SNAPMODULE),0x%08lx)\n",
dwFlags,th32ProcessID);
snapshot = HeapAlloc (GetProcessHeap (), 0, sizeof
(SNAPSHOT_OBJECT));
if (!snapshot)
{
return INVALID_HANDLE_VALUE32;
}
snapshot->header.type = K32OBJ_TOOLHELP_SNAPSHOT;
snapshot->header.refcount = 1;
snapshot->arrayCounter = 0;
/*
* Lock here, to prevent processes from being created or
* destroyed while the snapshot is gathered
*/
SYSTEM_LOCK ();
numProcesses = PROCESS_PDBList_Getsize ();
snapshot->processArray = (PDB32**)
HeapAlloc (GetProcessHeap (), 0, sizeof (PDB32*) * numProcesses);
if (!snapshot->processArray)
{
HeapFree (GetProcessHeap (), 0, snapshot->processArray);
SetLastError (INVALID_HANDLE_VALUE32);
ERR (toolhelp, "Error allocating %d bytes for snapshot\n",
sizeof (PDB32*) * numProcesses);
return INVALID_HANDLE_VALUE32;
}
snapshot->numProcs = numProcesses;
pdb = PROCESS_PDBList_Getfirst ();
for (i = 0; pdb && i < numProcesses; i++)
{
TRACE (toolhelp, "Saving ref to pdb %ld\n", PDB_TO_PROCESS_ID(pdb));
snapshot->processArray[i] = pdb;
K32OBJ_IncCount (&pdb->header);
pdb = PROCESS_PDBList_Getnext (pdb);
}
SYSTEM_UNLOCK ();
ssHandle = HANDLE_Alloc (PROCESS_Current (), &snapshot->header,
FILE_ALL_ACCESS, TRUE, -1);
if (ssHandle == INVALID_HANDLE_VALUE32)
{
/* HANDLE_Alloc is supposed to deallocate the
* heap memory if it fails. This code doesn't need to.
*/
SetLastError (INVALID_HANDLE_VALUE32);
ERR (toolhelp, "Error allocating handle\n");
return INVALID_HANDLE_VALUE32;
}
TRACE (toolhelp, "snapshotted %d processes, expected %d\n",
i, numProcesses);
return ssHandle;
}
if (dwFlags & TH32CS_SNAPTHREAD)
{
FIXME(toolhelp,"(0x%08lx (TH32CS_SNAPMODULE),0x%08lx), stub!\n",
dwFlags,th32ProcessID);
return INVALID_HANDLE_VALUE32;
}
return INVALID_HANDLE_VALUE32;
}
/***********************************************************************
* Process32First
* Return info about the first process in a toolhelp32 snapshot
*/
BOOL32 WINAPI Process32First(HANDLE32 hSnapshot, LPPROCESSENTRY32 lppe)
{
PDB32 *pdb;
SNAPSHOT_OBJECT *snapshot;
int i;
TRACE (toolhelp, "(0x%08lx,0x%08lx)\n", (DWORD) hSnapshot,
(DWORD) lppe);
if (lppe->dwSize < sizeof (PROCESSENTRY32))
{
SetLastError (ERROR_INSUFFICIENT_BUFFER);
ERR (toolhelp, "Result buffer too small\n");
return FALSE;
}
SYSTEM_LOCK ();
snapshot = (SNAPSHOT_OBJECT*) HANDLE_GetObjPtr (PROCESS_Current (),
hSnapshot,
K32OBJ_UNKNOWN,
FILE_ALL_ACCESS,
NULL);
if (!snapshot)
{
SYSTEM_UNLOCK ();
SetLastError (ERROR_INVALID_HANDLE);
ERR (toolhelp, "Error retreiving snapshot\n");
return FALSE;
}
snapshot->arrayCounter = i = 0;
pdb = snapshot->processArray[i];
if (!pdb)
{
SetLastError (ERROR_NO_MORE_FILES);
ERR (toolhelp, "End of snapshot array\n");
return FALSE;
}
TRACE (toolhelp, "Returning info on process %d, id %ld\n",
i, PDB_TO_PROCESS_ID (pdb));
lppe->cntUsage = 1;
lppe->th32ProcessID = PDB_TO_PROCESS_ID (pdb);
lppe->th32DefaultHeapID = (DWORD) pdb->heap;
lppe->cntThreads = pdb->threads;
lppe->th32ParentProcessID = PDB_TO_PROCESS_ID (pdb->parent);
lppe->pcPriClassBase = 6; /* FIXME: this is a made-up value */
lppe->dwFlags = -1; /* FIXME: RESERVED by Microsoft :-) */
if (pdb->exe_modref)
{
lppe->th32ModuleID = (DWORD) pdb->exe_modref->module;
strncpy (lppe->szExeFile, pdb->exe_modref->longname,
sizeof (lppe->szExeFile));
}
else
{
lppe->th32ModuleID = (DWORD) 0;
strcpy (lppe->szExeFile, "");
}
SYSTEM_UNLOCK ();
return TRUE;
}
/***********************************************************************
* Process32Next
* Return info about the "next" process in a toolhelp32 snapshot
*/
BOOL32 WINAPI Process32Next(HANDLE32 hSnapshot, LPPROCESSENTRY32 lppe)
{
PDB32 *pdb;
SNAPSHOT_OBJECT *snapshot;
int i;
TRACE (toolhelp, "(0x%08lx,0x%08lx)\n", (DWORD) hSnapshot,
(DWORD) lppe);
if (lppe->dwSize < sizeof (PROCESSENTRY32))
{
SetLastError (ERROR_INSUFFICIENT_BUFFER);
ERR (toolhelp, "Result buffer too small\n");
return FALSE;
}
SYSTEM_LOCK ();
snapshot = (SNAPSHOT_OBJECT*) HANDLE_GetObjPtr (PROCESS_Current (),
hSnapshot,
K32OBJ_UNKNOWN,
FILE_ALL_ACCESS,
NULL);
if (!snapshot)
{
SYSTEM_UNLOCK ();
SetLastError (ERROR_INVALID_HANDLE);
ERR (toolhelp, "Error retreiving snapshot\n");
return FALSE;
}
snapshot->arrayCounter ++;
i = snapshot->arrayCounter;
pdb = snapshot->processArray[i];
if (!pdb || snapshot->arrayCounter >= snapshot->numProcs)
{
SetLastError (ERROR_NO_MORE_FILES);
ERR (toolhelp, "End of snapshot array\n");
return FALSE;
}
TRACE (toolhelp, "Returning info on process %d, id %ld\n",
i, PDB_TO_PROCESS_ID (pdb));
lppe->cntUsage = 1;
lppe->th32ProcessID = PDB_TO_PROCESS_ID (pdb);
lppe->th32DefaultHeapID = (DWORD) pdb->heap;
lppe->cntThreads = pdb->threads;
lppe->th32ParentProcessID = PDB_TO_PROCESS_ID (pdb->parent);
lppe->pcPriClassBase = 6; /* FIXME: this is a made-up value */
lppe->dwFlags = -1; /* FIXME: RESERVED by Microsoft :-) */
if (pdb->exe_modref)
{
lppe->th32ModuleID = (DWORD) pdb->exe_modref->module;
strncpy (lppe->szExeFile, pdb->exe_modref->longname,
sizeof (lppe->szExeFile));
}
else
{
lppe->th32ModuleID = (DWORD) 0;
strcpy (lppe->szExeFile, "");
}
SYSTEM_UNLOCK ();
return TRUE;
}