misc/toolhelp.c

   1 /*
   2  * Misc Toolhelp functions
   3  *
   4  * Copyright 1996 Marcus Meissner
   5  */
   6
   7 #include <stdlib.h>
   8 #include <string.h>
   9 #include <unistd.h>
  10 #include <ctype.h>
  11 #include <assert.h>
  12 #include "winbase.h"
  13 #include "wine/winbase16.h"
  14 #include "winerror.h"
  15 #include "process.h"
  16 #include "tlhelp32.h"
  17 #include "toolhelp.h"
  18 #include "heap.h"
  19 #include "server.h"
  20 #include "debug.h"
  21
  22 DEFAULT_DEBUG_CHANNEL(toolhelp)
  23
  24
  25 /* FIXME: to make this working, we have to callback all these registered
  26  * functions from all over the WINE code. Someone with more knowledge than
  27  * me please do that. -Marcus
  28  */
  29 static struct notify
  30 {
  31     HTASK16   htask;
  32     FARPROC16 lpfnCallback;
  33     WORD     wFlags;
  34 } *notifys = NULL;
  35
  36 static int nrofnotifys = 0;
  37
  38 static FARPROC16 HookNotify = NULL;
  39
  40 BOOL16 WINAPI NotifyRegister16( HTASK16 htask, FARPROC16 lpfnCallback,
  41                               WORD wFlags )
  42 {
  43     int i;
  44
  45     TRACE(toolhelp, "(%x,%lx,%x) called.\n",
  46                       htask, (DWORD)lpfnCallback, wFlags );
  47     if (!htask) htask = GetCurrentTask();
  48     for (i=0;i<nrofnotifys;i++)
  49         if (notifys[i].htask==htask)
  50             break;
  51     if (i==nrofnotifys) {
  52         if (notifys==NULL)
  53             notifys=(struct notify*)HeapAlloc( SystemHeap, 0,
  54                                                sizeof(struct notify) );
  55         else
  56             notifys=(struct notify*)HeapReAlloc( SystemHeap, 0, notifys,
  57                                         sizeof(struct notify)*(nrofnotifys+1));
  58         if (!notifys) return FALSE;
  59         nrofnotifys++;
  60     }
  61     notifys[i].htask=htask;
  62     notifys[i].lpfnCallback=lpfnCallback;
  63     notifys[i].wFlags=wFlags;
  64     return TRUE;
  65 }
  66
  67 BOOL16 WINAPI NotifyUnregister16( HTASK16 htask )
  68 {
  69     int i;
  70
  71     TRACE(toolhelp, "(%x) called.\n", htask );
  72     if (!htask) htask = GetCurrentTask();
  73     for (i=nrofnotifys;i--;)
  74         if (notifys[i].htask==htask)
  75             break;
  76     if (i==-1)
  77         return FALSE;
  78     memcpy(notifys+i,notifys+(i+1),sizeof(struct notify)*(nrofnotifys-i-1));
  79     notifys=(struct notify*)HeapReAlloc( SystemHeap, 0, notifys,
  80                                         (nrofnotifys-1)*sizeof(struct notify));
  81     nrofnotifys--;
  82     return TRUE;
  83 }
  84
  85 BOOL16 WINAPI StackTraceCSIPFirst16(STACKTRACEENTRY *ste, WORD wSS, WORD wCS, WORD wIP, WORD wBP)
  86 {
  87     return TRUE;
  88 }
  89
  90 BOOL16 WINAPI StackTraceFirst16(STACKTRACEENTRY *ste, HTASK16 Task)
  91 {
  92     return TRUE;
  93 }
  94
  95 BOOL16 WINAPI StackTraceNext16(STACKTRACEENTRY *ste)
  96 {
  97     return TRUE;
  98 }
  99
 100 /***********************************************************************
 101  *           ToolHelpHook                             (KERNEL.341)
 102  *      see "Undocumented Windows"
 103  */
 104 FARPROC16 WINAPI ToolHelpHook16(FARPROC16 lpfnNotifyHandler)
 105 {
 106 FARPROC16 tmp;
 107         tmp = HookNotify;
 108         HookNotify = lpfnNotifyHandler;
 109         /* just return previously installed notification function */
 110         return tmp;
 111 }
 112
 113
 114 /***********************************************************************
 115  *           CreateToolHelp32Snapshot                   (KERNEL32.179)
 116  */
 117 HANDLE WINAPI CreateToolhelp32Snapshot( DWORD flags, DWORD process )
 118 {
 119     struct create_snapshot_request req;
 120     struct create_snapshot_reply reply;
 121
 122     TRACE( toolhelp, "%lx,%lx\n", flags, process );
 123     if (flags & (TH32CS_SNAPHEAPLIST|TH32CS_SNAPMODULE|TH32CS_SNAPTHREAD))
 124         FIXME( toolhelp, "flags %lx not implemented\n", flags );
 125     if (!(flags & TH32CS_SNAPPROCESS))
 126     {
 127         SetLastError( ERROR_CALL_NOT_IMPLEMENTED );
 128         return INVALID_HANDLE_VALUE;
 129     }
 130
 131     /* Now do the snapshot */
 132     req.flags   = flags & ~TH32CS_INHERIT;
 133     req.inherit = (flags & TH32CS_INHERIT) != 0;
 134     CLIENT_SendRequest( REQ_CREATE_SNAPSHOT, -1, 1, &req, sizeof(req) );
 135     CLIENT_WaitSimpleReply( &reply, sizeof(reply), NULL );
 136     return reply.handle;
 137 }
 138
 139
 140 /***********************************************************************
 141  *              TOOLHELP_Process32Next
 142  *
 143  * Implementation of Process32First/Next
 144  */
 145 static BOOL TOOLHELP_Process32Next( HANDLE handle, LPPROCESSENTRY lppe, BOOL first )
 146 {
 147     struct next_process_request req;
 148     struct next_process_reply reply;
 149
 150     if (lppe->dwSize < sizeof (PROCESSENTRY))
 151     {
 152         SetLastError( ERROR_INSUFFICIENT_BUFFER );
 153         ERR (toolhelp, "Result buffer too small\n");
 154         return FALSE;
 155     }
 156     req.handle = handle;
 157     req.reset = first;
 158     CLIENT_SendRequest( REQ_NEXT_PROCESS, -1, 1, &req, sizeof(req) );
 159     if (CLIENT_WaitSimpleReply( &reply, sizeof(reply), NULL )) return FALSE;
 160     lppe->cntUsage            = 1;
 161     lppe->th32ProcessID       = (DWORD)reply.pid;
 162     lppe->th32DefaultHeapID   = 0;  /* FIXME */
 163     lppe->th32ModuleID        = 0;  /* FIXME */
 164     lppe->cntThreads          = reply.threads;
 165     lppe->th32ParentProcessID = 0;  /* FIXME */
 166     lppe->pcPriClassBase      = reply.priority;
 167     lppe->dwFlags             = -1; /* FIXME */
 168     lppe->szExeFile[0]        = 0;  /* FIXME */
 169     return TRUE;
 170 }
 171
 172
 173 /***********************************************************************
 174  *              Process32First    (KERNEL32.555)
 175  *
 176  * Return info about the first process in a toolhelp32 snapshot
 177  */
 178 BOOL WINAPI Process32First(HANDLE hSnapshot, LPPROCESSENTRY lppe)
 179 {
 180     return TOOLHELP_Process32Next( hSnapshot, lppe, TRUE );
 181 }
 182
 183 /***********************************************************************
 184  *              Process32Next   (KERNEL32.556)
 185  *
 186  * Return info about the "next" process in a toolhelp32 snapshot
 187  */
 188 BOOL WINAPI Process32Next(HANDLE hSnapshot, LPPROCESSENTRY lppe)
 189 {
 190     return TOOLHELP_Process32Next( hSnapshot, lppe, FALSE );
 191 }
 192
 193 /***********************************************************************
 194  *              Module32First   (KERNEL32.527)
 195  *
 196  * Return info about the "first" module in a toolhelp32 snapshot
 197  */
 198 BOOL WINAPI Module32First(HANDLE hSnapshot, LPMODULEENTRY lpme)
 199 {
 200     FIXME(toolhelp,"(%d,%p),stub!\n",hSnapshot,lpme);
 201     return FALSE;
 202 }
 203
 204 /***********************************************************************
 205  *              Module32Next   (KERNEL32.528)
 206  *
 207  * Return info about the "next" module in a toolhelp32 snapshot
 208  */
 209 BOOL WINAPI Module32Next(HANDLE hSnapshot, LPMODULEENTRY lpme)
 210 {
 211     FIXME(toolhelp,"(%d,%p),stub!\n",hSnapshot,lpme);
 212     return FALSE;
 213 }
 214
 215 /************************************************************************
 216  *              GlobalMasterHandle16 (KERNEL.28)
 217  *
 218  *
 219  * Should return selector and handle of the information structure for
 220  * the global heap. selector and handle are stored in the THHOOK as
 221  * pGlobalHeap and hGlobalHeap.
 222  * As Wine doesn't have this structure, we return both values as zero
 223  * Applications should interpret this as "No Global Heap"
 224  */
 225 DWORD WINAPI GlobalMasterHandle16(void)
 226 {
 227     FIXME(toolhelp,": stub\n");
 228     return 0;
 229 }