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