/* * COMPOBJ library * * Copyright 1995 Martin von Loewis * Copyright 1998 Justin Bradford * Copyright 1999 Francis Beaudet * Copyright 1999 Sylvain St-Germain */ #include "config.h" #ifdef HAVE_UNISTD_H # include #endif #include #include #include #include #ifdef HAVE_SYS_FILE_H # include #endif #include #include #ifdef HAVE_SYS_SOCKIO_H # include #endif #ifdef HAVE_NET_IF_H # include #endif #ifdef HAVE_NETINET_IN_H # include #endif #include #include #include #include #include "windef.h" #include "wine/winbase16.h" #include "winerror.h" #include "wownt32.h" #include "ole.h" #include "ole2ver.h" #include "debugtools.h" #include "file.h" #include "heap.h" #include "ldt.h" #include "winreg.h" #include "wine/obj_base.h" #include "wine/obj_misc.h" #include "wine/obj_storage.h" #include "wine/obj_clientserver.h" #include "ifs.h" #include "compobj.h" DEFAULT_DEBUG_CHANNEL(ole) /**************************************************************************** * COM External Lock structures and methods declaration * * This api provides a linked list to managed external references to * COM objects. * * The public interface consists of three calls: * COM_ExternalLockAddRef * COM_ExternalLockRelease * COM_ExternalLockFreeList */ #define EL_END_OF_LIST 0 #define EL_NOT_FOUND 0 /* * Declaration of the static structure that manage the * external lock to COM objects. */ typedef struct COM_ExternalLock COM_ExternalLock; typedef struct COM_ExternalLockList COM_ExternalLockList; struct COM_ExternalLock { IUnknown *pUnk; /* IUnknown referenced */ ULONG uRefCount; /* external lock counter to IUnknown object*/ COM_ExternalLock *next; /* Pointer to next element in list */ }; struct COM_ExternalLockList { COM_ExternalLock *head; /* head of list */ }; /* * Declaration and initialization of the static structure that manages * the external lock to COM objects. */ static COM_ExternalLockList elList = { EL_END_OF_LIST }; /* * Public Interface to the external lock list */ static void COM_ExternalLockFreeList(); static void COM_ExternalLockAddRef(IUnknown *pUnk); static void COM_ExternalLockRelease(IUnknown *pUnk, BOOL bRelAll); void COM_ExternalLockDump(); /* testing purposes, not static to avoid warning */ /* * Private methods used to managed the linked list */ static BOOL COM_ExternalLockInsert( IUnknown *pUnk); static void COM_ExternalLockDelete( COM_ExternalLock *element); static COM_ExternalLock* COM_ExternalLockFind( IUnknown *pUnk); static COM_ExternalLock* COM_ExternalLockLocate( COM_ExternalLock *element, IUnknown *pUnk); /**************************************************************************** * This section defines variables internal to the COM module. * * TODO: Most of these things will have to be made thread-safe. */ HINSTANCE16 COMPOBJ_hInstance = 0; HINSTANCE COMPOBJ_hInstance32 = 0; static int COMPOBJ_Attach = 0; LPMALLOC16 currentMalloc16=NULL; LPMALLOC currentMalloc32=NULL; HTASK16 hETask = 0; WORD Table_ETask[62]; /* * This lock count counts the number of times CoInitialize is called. It is * decreased every time CoUninitialize is called. When it hits 0, the COM * libraries are freed */ static ULONG s_COMLockCount = 0; /* * This linked list contains the list of registered class objects. These * are mostly used to register the factories for out-of-proc servers of OLE * objects. * * TODO: Make this data structure aware of inter-process communication. This * means that parts of this will be exported to the Wine Server. */ typedef struct tagRegisteredClass { CLSID classIdentifier; LPUNKNOWN classObject; DWORD runContext; DWORD connectFlags; DWORD dwCookie; struct tagRegisteredClass* nextClass; } RegisteredClass; static RegisteredClass* firstRegisteredClass = NULL; /* this open DLL table belongs in a per process table, but my guess is that * it shouldn't live in the kernel, so I'll put them out here in DLL * space assuming that there is one OLE32 per process. */ typedef struct tagOpenDll { char *DllName; /* really only needed for debugging */ HINSTANCE hLibrary; struct tagOpenDll *next; } OpenDll; static OpenDll *openDllList = NULL; /* linked list of open dlls */ /***************************************************************************** * This section contains prototypes to internal methods for this * module */ static HRESULT COM_GetRegisteredClassObject(REFCLSID rclsid, DWORD dwClsContext, LPUNKNOWN* ppUnk); static void COM_RevokeAllClasses(); /****************************************************************************** * CoBuildVersion [COMPOBJ.1] * * RETURNS * Current built version, hiword is majornumber, loword is minornumber */ DWORD WINAPI CoBuildVersion(void) { TRACE("(void)\n"); return (rmm<<16)+rup; } /****************************************************************************** * CoInitialize16 [COMPOBJ.2] * Set the win16 IMalloc used for memory management */ HRESULT WINAPI CoInitialize16( LPVOID lpReserved /* [in] pointer to win16 malloc interface */ ) { currentMalloc16 = (LPMALLOC16)lpReserved; return S_OK; } /****************************************************************************** * CoInitialize32 [OLE32.26] * * Initializes the COM libraries. * * See CoInitializeEx32 */ HRESULT WINAPI CoInitialize( LPVOID lpReserved /* [in] pointer to win32 malloc interface (obsolete, should be NULL) */ ) { /* * Just delegate to the newer method. */ return CoInitializeEx(lpReserved, COINIT_APARTMENTTHREADED); } /****************************************************************************** * CoInitializeEx32 [OLE32.163] * * Initializes the COM libraries. The behavior used to set the win32 IMalloc * used for memory management is obsolete. * * RETURNS * S_OK if successful, * S_FALSE if this function was called already. * RPC_E_CHANGED_MODE if a previous call to CoInitialize specified another * threading model. * * BUGS * Only the single threaded model is supported. As a result RPC_E_CHANGED_MODE * is never returned. * * See the windows documentation for more details. */ HRESULT WINAPI CoInitializeEx( LPVOID lpReserved, /* [in] pointer to win32 malloc interface (obsolete, should be NULL) */ DWORD dwCoInit /* [in] A value from COINIT specifies the threading model */ ) { HRESULT hr; TRACE("(%p, %x)\n", lpReserved, (int)dwCoInit); if (lpReserved!=NULL) { ERR("(%p, %x) - Bad parameter passed-in %p, must be an old Windows Application\n", lpReserved, (int)dwCoInit, lpReserved); } /* * Check for unsupported features. */ if (dwCoInit!=COINIT_APARTMENTTHREADED) { FIXME(":(%p,%x): unsupported flag %x\n", lpReserved, (int)dwCoInit, (int)dwCoInit); /* Hope for the best and continue anyway */ } /* * Check the lock count. If this is the first time going through the initialize * process, we have to initialize the libraries. */ if (s_COMLockCount==0) { /* * Initialize the various COM libraries and data structures. */ TRACE("() - Initializing the COM libraries\n"); RunningObjectTableImpl_Initialize(); hr = S_OK; } else hr = S_FALSE; /* * Crank-up that lock count. */ s_COMLockCount++; return hr; } /*********************************************************************** * CoUninitialize16 [COMPOBJ.3] * Don't know what it does. * 3-Nov-98 -- this was originally misspelled, I changed it to what I * believe is the correct spelling */ void WINAPI CoUninitialize16(void) { TRACE("()\n"); CoFreeAllLibraries(); } /*********************************************************************** * CoUninitialize32 [OLE32.47] * * This method will release the COM libraries. * * See the windows documentation for more details. */ void WINAPI CoUninitialize(void) { TRACE("()\n"); /* * Decrease the reference count. */ s_COMLockCount--; /* * If we are back to 0 locks on the COM library, make sure we free * all the associated data structures. */ if (s_COMLockCount==0) { /* * Release the various COM libraries and data structures. */ TRACE("() - Releasing the COM libraries\n"); RunningObjectTableImpl_UnInitialize(); /* * Release the references to the registered class objects. */ COM_RevokeAllClasses(); /* * This will free the loaded COM Dlls. */ CoFreeAllLibraries(); /* * This will free list of external references to COM objects. */ COM_ExternalLockFreeList(); } } /*********************************************************************** * CoGetMalloc16 [COMPOBJ.4] * RETURNS * The current win16 IMalloc */ HRESULT WINAPI CoGetMalloc16( DWORD dwMemContext, /* [in] unknown */ LPMALLOC16 * lpMalloc /* [out] current win16 malloc interface */ ) { if(!currentMalloc16) currentMalloc16 = IMalloc16_Constructor(); *lpMalloc = currentMalloc16; return S_OK; } /****************************************************************************** * CoGetMalloc32 [OLE32.20] * * RETURNS * The current win32 IMalloc */ HRESULT WINAPI CoGetMalloc( DWORD dwMemContext, /* [in] unknown */ LPMALLOC *lpMalloc /* [out] current win32 malloc interface */ ) { if(!currentMalloc32) currentMalloc32 = IMalloc_Constructor(); *lpMalloc = currentMalloc32; return S_OK; } /*********************************************************************** * CoCreateStandardMalloc16 [COMPOBJ.71] */ HRESULT WINAPI CoCreateStandardMalloc16(DWORD dwMemContext, LPMALLOC16 *lpMalloc) { /* FIXME: docu says we shouldn't return the same allocator as in * CoGetMalloc16 */ *lpMalloc = IMalloc16_Constructor(); return S_OK; } /****************************************************************************** * CoDisconnectObject [COMPOBJ.15] */ HRESULT WINAPI CoDisconnectObject( LPUNKNOWN lpUnk, DWORD reserved ) { TRACE("%p %lx\n",lpUnk,reserved); return S_OK; } /*********************************************************************** * IsEqualGUID16 [COMPOBJ.18] * * Compares two Unique Identifiers. * * RETURNS * TRUE if equal */ BOOL16 WINAPI IsEqualGUID16( GUID* g1, /* [in] unique id 1 */ GUID* g2 /**/ ) { return !memcmp( g1, g2, sizeof(GUID) ); } /*********************************************************************** * IsEqualGUID32 [OLE32.76] * * Compares two Unique Identifiers. * * RETURNS * TRUE if equal */ BOOL WINAPI IsEqualGUID32( REFGUID rguid1, /* [in] unique id 1 */ REFGUID rguid2 /* [in] unique id 2 */ ) { return !memcmp(rguid1,rguid2,sizeof(GUID)); } /****************************************************************************** * CLSIDFromString16 [COMPOBJ.20] * Converts a unique identifier from it's string representation into * the GUID struct. * * Class id: DWORD-WORD-WORD-BYTES[2]-BYTES[6] * * RETURNS * the converted GUID */ HRESULT WINAPI CLSIDFromString16( LPCOLESTR16 idstr, /* [in] string representation of guid */ CLSID *id /* [out] GUID converted from string */ ) { BYTE *s = (BYTE *) idstr; BYTE *p; int i; BYTE table[256]; TRACE("%s -> %p\n", idstr, id); /* quick lookup table */ memset(table, 0, 256); for (i = 0; i < 10; i++) { table['0' + i] = i; } for (i = 0; i < 6; i++) { table['A' + i] = i+10; table['a' + i] = i+10; } /* in form {XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX} */ if (strlen(idstr) != 38) return OLE_ERROR_OBJECT; p = (BYTE *) id; s++; /* skip leading brace */ for (i = 0; i < 4; i++) { p[3 - i] = table[*s]<<4 | table[*(s+1)]; s += 2; } p += 4; s++; /* skip - */ for (i = 0; i < 2; i++) { p[1-i] = table[*s]<<4 | table[*(s+1)]; s += 2; } p += 2; s++; /* skip - */ for (i = 0; i < 2; i++) { p[1-i] = table[*s]<<4 | table[*(s+1)]; s += 2; } p += 2; s++; /* skip - */ /* these are just sequential bytes */ for (i = 0; i < 2; i++) { *p++ = table[*s]<<4 | table[*(s+1)]; s += 2; } s++; /* skip - */ for (i = 0; i < 6; i++) { *p++ = table[*s]<<4 | table[*(s+1)]; s += 2; } return S_OK; } /****************************************************************************** * CoCreateGuid[OLE32.6] * * Creates a 128bit GUID. * Implemented according the DCE specification for UUID generation. * Code is based upon uuid library in e2fsprogs by Theodore Ts'o. * Copyright (C) 1996, 1997 Theodore Ts'o. * * RETURNS * * S_OK if successful. */ HRESULT WINAPI CoCreateGuid( GUID *pguid /* [out] points to the GUID to initialize */ ) { static char has_init = 0; unsigned char a[6]; static int adjustment = 0; static struct timeval last = {0, 0}; static UINT16 clock_seq; struct timeval tv; unsigned long long clock_reg; UINT clock_high, clock_low; UINT16 temp_clock_seq, temp_clock_mid, temp_clock_hi_and_version; #ifdef HAVE_NET_IF_H int sd; struct ifreq ifr, *ifrp; struct ifconf ifc; char buf[1024]; int n, i; #endif /* Have we already tried to get the MAC address? */ if (!has_init) { #ifdef HAVE_NET_IF_H /* BSD 4.4 defines the size of an ifreq to be * max(sizeof(ifreq), sizeof(ifreq.ifr_name)+ifreq.ifr_addr.sa_len * However, under earlier systems, sa_len isn't present, so * the size is just sizeof(struct ifreq) */ # ifdef HAVE_SA_LEN # ifndef max # define max(a,b) ((a) > (b) ? (a) : (b)) # endif # define ifreq_size(i) max(sizeof(struct ifreq),\ sizeof((i).ifr_name)+(i).ifr_addr.sa_len) # else # define ifreq_size(i) sizeof(struct ifreq) # endif /* HAVE_SA_LEN */ sd = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP); if (sd < 0) { /* if we can't open a socket, just use random numbers */ /* set the multicast bit to prevent conflicts with real cards */ a[0] = (rand() & 0xff) | 0x80; a[1] = rand() & 0xff; a[2] = rand() & 0xff; a[3] = rand() & 0xff; a[4] = rand() & 0xff; a[5] = rand() & 0xff; } else { memset(buf, 0, sizeof(buf)); ifc.ifc_len = sizeof(buf); ifc.ifc_buf = buf; /* get the ifconf interface */ if (ioctl (sd, SIOCGIFCONF, (char *)&ifc) < 0) { close(sd); /* no ifconf, so just use random numbers */ /* set the multicast bit to prevent conflicts with real cards */ a[0] = (rand() & 0xff) | 0x80; a[1] = rand() & 0xff; a[2] = rand() & 0xff; a[3] = rand() & 0xff; a[4] = rand() & 0xff; a[5] = rand() & 0xff; } else { /* loop through the interfaces, looking for a valid one */ n = ifc.ifc_len; for (i = 0; i < n; i+= ifreq_size(*ifr) ) { ifrp = (struct ifreq *)((char *) ifc.ifc_buf+i); strncpy(ifr.ifr_name, ifrp->ifr_name, IFNAMSIZ); /* try to get the address for this interface */ # ifdef SIOCGIFHWADDR if (ioctl(sd, SIOCGIFHWADDR, &ifr) < 0) continue; memcpy(a, (unsigned char *)&ifr.ifr_hwaddr.sa_data, 6); # else # ifdef SIOCGENADDR if (ioctl(sd, SIOCGENADDR, &ifr) < 0) continue; memcpy(a, (unsigned char *) ifr.ifr_enaddr, 6); # else /* XXX we don't have a way of getting the hardware address */ close(sd); a[0] = 0; break; # endif /* SIOCGENADDR */ # endif /* SIOCGIFHWADDR */ /* make sure it's not blank */ if (!a[0] && !a[1] && !a[2] && !a[3] && !a[4] && !a[5]) continue; goto valid_address; } /* if we didn't find a valid address, make a random one */ /* once again, set multicast bit to avoid conflicts */ a[0] = (rand() & 0xff) | 0x80; a[1] = rand() & 0xff; a[2] = rand() & 0xff; a[3] = rand() & 0xff; a[4] = rand() & 0xff; a[5] = rand() & 0xff; valid_address: close(sd); } } #else /* no networking info, so generate a random address */ a[0] = (rand() & 0xff) | 0x80; a[1] = rand() & 0xff; a[2] = rand() & 0xff; a[3] = rand() & 0xff; a[4] = rand() & 0xff; a[5] = rand() & 0xff; #endif /* HAVE_NET_IF_H */ has_init = 1; } /* generate time element of GUID */ /* Assume that the gettimeofday() has microsecond granularity */ #define MAX_ADJUSTMENT 10 try_again: gettimeofday(&tv, 0); if ((last.tv_sec == 0) && (last.tv_usec == 0)) { clock_seq = ((rand() & 0xff) << 8) + (rand() & 0xff); clock_seq &= 0x1FFF; last = tv; last.tv_sec--; } if ((tv.tv_sec < last.tv_sec) || ((tv.tv_sec == last.tv_sec) && (tv.tv_usec < last.tv_usec))) { clock_seq = (clock_seq+1) & 0x1FFF; adjustment = 0; } else if ((tv.tv_sec == last.tv_sec) && (tv.tv_usec == last.tv_usec)) { if (adjustment >= MAX_ADJUSTMENT) goto try_again; adjustment++; } else adjustment = 0; clock_reg = tv.tv_usec*10 + adjustment; clock_reg += ((unsigned long long) tv.tv_sec)*10000000; clock_reg += (((unsigned long long) 0x01B21DD2) << 32) + 0x13814000; clock_high = clock_reg >> 32; clock_low = clock_reg; temp_clock_seq = clock_seq | 0x8000; temp_clock_mid = (UINT16)clock_high; temp_clock_hi_and_version = (clock_high >> 16) | 0x1000; /* pack the information into the GUID structure */ ((unsigned char*)&pguid->Data1)[3] = (unsigned char)clock_low; clock_low >>= 8; ((unsigned char*)&pguid->Data1)[2] = (unsigned char)clock_low; clock_low >>= 8; ((unsigned char*)&pguid->Data1)[1] = (unsigned char)clock_low; clock_low >>= 8; ((unsigned char*)&pguid->Data1)[0] = (unsigned char)clock_low; ((unsigned char*)&pguid->Data2)[1] = (unsigned char)temp_clock_mid; temp_clock_mid >>= 8; ((unsigned char*)&pguid->Data2)[0] = (unsigned char)temp_clock_mid; ((unsigned char*)&pguid->Data3)[1] = (unsigned char)temp_clock_hi_and_version; temp_clock_hi_and_version >>= 8; ((unsigned char*)&pguid->Data3)[0] = (unsigned char)temp_clock_hi_and_version; ((unsigned char*)pguid->Data4)[1] = (unsigned char)temp_clock_seq; temp_clock_seq >>= 8; ((unsigned char*)pguid->Data4)[0] = (unsigned char)temp_clock_seq; ((unsigned char*)pguid->Data4)[2] = a[0]; ((unsigned char*)pguid->Data4)[3] = a[1]; ((unsigned char*)pguid->Data4)[4] = a[2]; ((unsigned char*)pguid->Data4)[5] = a[3]; ((unsigned char*)pguid->Data4)[6] = a[4]; ((unsigned char*)pguid->Data4)[7] = a[5]; TRACE("%p", pguid); return S_OK; } /****************************************************************************** * CLSIDFromString32 [OLE32.3] * Converts a unique identifier from it's string representation into * the GUID struct. * RETURNS * the converted GUID */ HRESULT WINAPI CLSIDFromString( LPCOLESTR idstr, /* [in] string representation of GUID */ CLSID *id /* [out] GUID represented by above string */ ) { LPOLESTR16 xid = HEAP_strdupWtoA(GetProcessHeap(),0,idstr); OLESTATUS ret = CLSIDFromString16(xid,id); HeapFree(GetProcessHeap(),0,xid); return ret; } /****************************************************************************** * WINE_StringFromCLSID [Internal] * Converts a GUID into the respective string representation. * * NOTES * * RETURNS * the string representation and OLESTATUS */ HRESULT WINE_StringFromCLSID( const CLSID *id, /* [in] GUID to be converted */ LPSTR idstr /* [out] pointer to buffer to contain converted guid */ ) { static const char *hex = "0123456789ABCDEF"; char *s; int i; if (!id) { ERR("called with id=Null\n"); *idstr = 0x00; return E_FAIL; } sprintf(idstr, "{%08lX-%04X-%04X-%02X%02X-", id->Data1, id->Data2, id->Data3, id->Data4[0], id->Data4[1]); s = &idstr[25]; /* 6 hex bytes */ for (i = 2; i < 8; i++) { *s++ = hex[id->Data4[i]>>4]; *s++ = hex[id->Data4[i] & 0xf]; } *s++ = '}'; *s++ = '\0'; TRACE("%p->%s\n", id, idstr); return OLE_OK; } /****************************************************************************** * StringFromCLSID16 [COMPOBJ.19] * Converts a GUID into the respective string representation. * The target string is allocated using the OLE IMalloc. * RETURNS * the string representation and OLESTATUS */ HRESULT WINAPI StringFromCLSID16( REFCLSID id, /* [in] the GUID to be converted */ LPOLESTR16 *idstr /* [out] a pointer to a to-be-allocated segmented pointer pointing to the resulting string */ ) { LPMALLOC16 mllc; OLESTATUS ret; DWORD args[2]; ret = CoGetMalloc16(0,&mllc); if (ret) return ret; args[0] = (DWORD)mllc; args[1] = 40; /* No need for a Callback entry, we have WOWCallback16Ex which does * everything we need. */ if (!WOWCallback16Ex( (DWORD)((ICOM_VTABLE(IMalloc16)*)PTR_SEG_TO_LIN( ((LPMALLOC16)PTR_SEG_TO_LIN(mllc))->lpvtbl) )->fnAlloc, WCB16_CDECL, 2*sizeof(DWORD), (LPVOID)args, (LPDWORD)idstr )) { WARN("CallTo16 IMalloc16 failed\n"); return E_FAIL; } return WINE_StringFromCLSID(id,PTR_SEG_TO_LIN(*idstr)); } /****************************************************************************** * StringFromCLSID32 [OLE32.151] * Converts a GUID into the respective string representation. * The target string is allocated using the OLE IMalloc. * RETURNS * the string representation and OLESTATUS */ HRESULT WINAPI StringFromCLSID( REFCLSID id, /* [in] the GUID to be converted */ LPOLESTR *idstr /* [out] a pointer to a to-be-allocated pointer pointing to the resulting string */ ) { char buf[80]; OLESTATUS ret; LPMALLOC mllc; if ((ret=CoGetMalloc(0,&mllc))) return ret; ret=WINE_StringFromCLSID(id,buf); if (!ret) { *idstr = mllc->lpvtbl->fnAlloc(mllc,strlen(buf)*2+2); lstrcpyAtoW(*idstr,buf); } return ret; } /****************************************************************************** * StringFromGUID2 [COMPOBJ.76] [OLE32.152] * * Converts a global unique identifier into a string of an API- * specified fixed format. (The usual {.....} stuff.) * * RETURNS * The (UNICODE) string representation of the GUID in 'str' * The length of the resulting string, 0 if there was any problem. */ INT WINAPI StringFromGUID2(REFGUID id, LPOLESTR str, INT cmax) { char xguid[80]; if (WINE_StringFromCLSID(id,xguid)) return 0; if (strlen(xguid)>=cmax) return 0; lstrcpyAtoW(str,xguid); return strlen(xguid); } /****************************************************************************** * CLSIDFromProgID16 [COMPOBJ.61] * Converts a program id into the respective GUID. (By using a registry lookup) * RETURNS * riid associated with the progid */ HRESULT WINAPI CLSIDFromProgID16( LPCOLESTR16 progid, /* [in] program id as found in registry */ LPCLSID riid /* [out] associated CLSID */ ) { char *buf,buf2[80]; DWORD buf2len; HRESULT err; HKEY xhkey; buf = HeapAlloc(GetProcessHeap(),0,strlen(progid)+8); sprintf(buf,"%s\\CLSID",progid); if ((err=RegOpenKeyA(HKEY_CLASSES_ROOT,buf,&xhkey))) { HeapFree(GetProcessHeap(),0,buf); return OLE_ERROR_GENERIC; } HeapFree(GetProcessHeap(),0,buf); buf2len = sizeof(buf2); if ((err=RegQueryValueA(xhkey,NULL,buf2,&buf2len))) { RegCloseKey(xhkey); return OLE_ERROR_GENERIC; } RegCloseKey(xhkey); return CLSIDFromString16(buf2,riid); } /****************************************************************************** * CLSIDFromProgID32 [OLE32.2] * Converts a program id into the respective GUID. (By using a registry lookup) * RETURNS * riid associated with the progid */ HRESULT WINAPI CLSIDFromProgID( LPCOLESTR progid, /* [in] program id as found in registry */ LPCLSID riid /* [out] associated CLSID */ ) { LPOLESTR16 pid = HEAP_strdupWtoA(GetProcessHeap(),0,progid); OLESTATUS ret = CLSIDFromProgID16(pid,riid); HeapFree(GetProcessHeap(),0,pid); return ret; } /************************************************************************************************ * OleSaveToStream * * This function write a CLSID on stream */ HRESULT WINAPI WriteClassStm(IStream *pStm,REFCLSID rclsid) { TRACE("(%p,%p)\n",pStm,rclsid); if (rclsid==NULL) return E_INVALIDARG; return IStream_Write(pStm,rclsid,sizeof(CLSID),NULL); } /************************************************************************************************ * OleSaveToStream * * This function read a CLSID from a stream */ HRESULT WINAPI ReadClassStm(IStream *pStm,REFCLSID rclsid) { ULONG nbByte; HRESULT res; TRACE("(%p,%p)\n",pStm,rclsid); if (rclsid==NULL) return E_INVALIDARG; res = IStream_Read(pStm,(void*)rclsid,sizeof(CLSID),&nbByte); if (FAILED(res)) return res; if (nbByte != sizeof(CLSID)) return S_FALSE; else return S_OK; } /* FIXME: this function is not declared in the WINELIB headers. But where should it go ? */ /*********************************************************************** * LookupETask (COMPOBJ.94) */ OLESTATUS WINAPI LookupETask16(HTASK16 *hTask,LPVOID p) { FIXME("(%p,%p),stub!\n",hTask,p); if ((*hTask = GetCurrentTask()) == hETask) { memcpy(p, Table_ETask, sizeof(Table_ETask)); } return 0; } /* FIXME: this function is not declared in the WINELIB headers. But where should it go ? */ /*********************************************************************** * SetETask (COMPOBJ.95) */ OLESTATUS WINAPI SetETask16(HTASK16 hTask, LPVOID p) { FIXME("(%04x,%p),stub!\n",hTask,p); hETask = hTask; return 0; } /* FIXME: this function is not declared in the WINELIB headers. But where should it go ? */ /*********************************************************************** * CallObjectInWOW (COMPOBJ.201) */ OLESTATUS WINAPI CallObjectInWOW(LPVOID p1,LPVOID p2) { FIXME("(%p,%p),stub!\n",p1,p2); return 0; } /****************************************************************************** * CoRegisterClassObject16 [COMPOBJ.5] * * Don't know where it registers it ... */ HRESULT WINAPI CoRegisterClassObject16( REFCLSID rclsid, LPUNKNOWN pUnk, DWORD dwClsContext, /* [in] CLSCTX flags indicating the context in which to run the executable */ DWORD flags, /* [in] REGCLS flags indicating how connections are made */ LPDWORD lpdwRegister ) { char buf[80]; WINE_StringFromCLSID(rclsid,buf); FIXME("(%s,%p,0x%08lx,0x%08lx,%p),stub\n", buf,pUnk,dwClsContext,flags,lpdwRegister ); return 0; } /****************************************************************************** * CoRevokeClassObject16 [COMPOBJ.6] * */ HRESULT WINAPI CoRevokeClassObject16(DWORD dwRegister /* token on class obj */) { FIXME("(0x%08lx),stub!\n", dwRegister); return 0; } /*** * COM_GetRegisteredClassObject * * This internal method is used to scan the registered class list to * find a class object. * * Params: * rclsid Class ID of the class to find. * dwClsContext Class context to match. * ppv [out] returns a pointer to the class object. Complying * to normal COM usage, this method will increase the * reference count on this object. */ static HRESULT COM_GetRegisteredClassObject( REFCLSID rclsid, DWORD dwClsContext, LPUNKNOWN* ppUnk) { RegisteredClass* curClass; /* * Sanity check */ assert(ppUnk!=0); /* * Iterate through the whole list and try to match the class ID. */ curClass = firstRegisteredClass; while (curClass != 0) { /* * Check if we have a match on the class ID. */ if (IsEqualGUID32(&(curClass->classIdentifier), rclsid)) { /* * Since we don't do out-of process or DCOM just right away, let's ignore the * class context. */ /* * We have a match, return the pointer to the class object. */ *ppUnk = curClass->classObject; IUnknown_AddRef(curClass->classObject); return S_OK; } /* * Step to the next class in the list. */ curClass = curClass->nextClass; } /* * If we get to here, we haven't found our class. */ return S_FALSE; } /****************************************************************************** * CoRegisterClassObject32 [OLE32.36] * * This method will register the class object for a given class ID. * * See the Windows documentation for more details. */ HRESULT WINAPI CoRegisterClassObject( REFCLSID rclsid, LPUNKNOWN pUnk, DWORD dwClsContext, /* [in] CLSCTX flags indicating the context in which to run the executable */ DWORD flags, /* [in] REGCLS flags indicating how connections are made */ LPDWORD lpdwRegister ) { RegisteredClass* newClass; LPUNKNOWN foundObject; HRESULT hr; char buf[80]; WINE_StringFromCLSID(rclsid,buf); TRACE("(%s,%p,0x%08lx,0x%08lx,%p)\n", buf,pUnk,dwClsContext,flags,lpdwRegister); /* * Perform a sanity check on the parameters */ if ( (lpdwRegister==0) || (pUnk==0) ) { return E_INVALIDARG; } /* * Initialize the cookie (out parameter) */ *lpdwRegister = 0; /* * First, check if the class is already registered. * If it is, this should cause an error. */ hr = COM_GetRegisteredClassObject(rclsid, dwClsContext, &foundObject); if (hr == S_OK) { /* * The COM_GetRegisteredClassObject increased the reference count on the * object so it has to be released. */ IUnknown_Release(foundObject); return CO_E_OBJISREG; } /* * If it is not registered, we must create a new entry for this class and * append it to the registered class list. * We use the address of the chain node as the cookie since we are sure it's * unique. */ newClass = HeapAlloc(GetProcessHeap(), 0, sizeof(RegisteredClass)); /* * Initialize the node. */ newClass->classIdentifier = *rclsid; newClass->runContext = dwClsContext; newClass->connectFlags = flags; newClass->dwCookie = (DWORD)newClass; newClass->nextClass = firstRegisteredClass; /* * Since we're making a copy of the object pointer, we have to increase it's * reference count. */ newClass->classObject = pUnk; IUnknown_AddRef(newClass->classObject); firstRegisteredClass = newClass; /* * Assign the out parameter (cookie) */ *lpdwRegister = newClass->dwCookie; /* * We're successfyl Yippee! */ return S_OK; } /*********************************************************************** * CoRevokeClassObject32 [OLE32.40] * * This method will remove a class object from the class registry * * See the Windows documentation for more details. */ HRESULT WINAPI CoRevokeClassObject( DWORD dwRegister) { RegisteredClass** prevClassLink; RegisteredClass* curClass; TRACE("(%08lx)\n",dwRegister); /* * Iterate through the whole list and try to match the cookie. */ curClass = firstRegisteredClass; prevClassLink = &firstRegisteredClass; while (curClass != 0) { /* * Check if we have a match on the cookie. */ if (curClass->dwCookie == dwRegister) { /* * Remove the class from the chain. */ *prevClassLink = curClass->nextClass; /* * Release the reference to the class object. */ IUnknown_Release(curClass->classObject); /* * Free the memory used by the chain node. */ HeapFree(GetProcessHeap(), 0, curClass); return S_OK; } /* * Step to the next class in the list. */ prevClassLink = &(curClass->nextClass); curClass = curClass->nextClass; } /* * If we get to here, we haven't found our class. */ return E_INVALIDARG; } /*********************************************************************** * CoGetClassObject [COMPOBJ.7] */ HRESULT WINAPI CoGetClassObject(REFCLSID rclsid, DWORD dwClsContext, LPVOID pvReserved, REFIID iid, LPVOID *ppv) { LPUNKNOWN regClassObject; char xclsid[50],xiid[50]; HRESULT hres = E_UNEXPECTED; char dllName[MAX_PATH+1]; DWORD dllNameLen = sizeof(dllName); HINSTANCE hLibrary; typedef HRESULT (CALLBACK *DllGetClassObjectFunc)(REFCLSID clsid, REFIID iid, LPVOID *ppv); DllGetClassObjectFunc DllGetClassObject; WINE_StringFromCLSID((LPCLSID)rclsid,xclsid); WINE_StringFromCLSID((LPCLSID)iid,xiid); TRACE("\n\tCLSID:\t%s,\n\tIID:\t%s\n",xclsid,xiid); /* * First, try and see if we can't match the class ID with one of the * registered classes. */ if (S_OK == COM_GetRegisteredClassObject(rclsid, dwClsContext, ®ClassObject)) { /* * Get the required interface from the retrieved pointer. */ hres = IUnknown_QueryInterface(regClassObject, iid, ppv); /* * Since QI got another reference on the pointer, we want to release the * one we already have. If QI was unsuccessful, this will release the object. This * is good since we are not returning it in the "out" parameter. */ IUnknown_Release(regClassObject); return hres; } /* out of process and remote servers not supported yet */ if ((CLSCTX_LOCAL_SERVER|CLSCTX_REMOTE_SERVER) & dwClsContext) { FIXME("CLSCTX_LOCAL_SERVER and CLSCTX_REMOTE_SERVER not supported!\n"); return E_ACCESSDENIED; } if ((CLSCTX_INPROC_SERVER|CLSCTX_INPROC_HANDLER) & dwClsContext) { HKEY CLSIDkey,key; /* lookup CLSID in registry key HKCR/CLSID */ hres = RegOpenKeyExA(HKEY_CLASSES_ROOT, "CLSID", 0, KEY_READ, &CLSIDkey); if (hres != ERROR_SUCCESS) return REGDB_E_READREGDB; hres = RegOpenKeyExA(CLSIDkey,xclsid,0,KEY_QUERY_VALUE,&key); if (hres != ERROR_SUCCESS) { RegCloseKey(CLSIDkey); return REGDB_E_CLASSNOTREG; } hres = RegQueryValueA(key, "InprocServer32", dllName, &dllNameLen); RegCloseKey(key); RegCloseKey(CLSIDkey); if (hres != ERROR_SUCCESS) return REGDB_E_READREGDB; TRACE("found InprocServer32 dll %s\n", dllName); /* open dll, call DllGetClassFactory */ hLibrary = CoLoadLibrary(dllName, TRUE); if (hLibrary == 0) { TRACE("couldn't load InprocServer32 dll %s\n", dllName); return E_ACCESSDENIED; /* or should this be CO_E_DLLNOTFOUND? */ } DllGetClassObject = (DllGetClassObjectFunc)GetProcAddress(hLibrary, "DllGetClassObject"); if (!DllGetClassObject) { /* not sure if this should be called here CoFreeLibrary(hLibrary);*/ TRACE("couldn't find function DllGetClassObject in %s\n", dllName); return E_ACCESSDENIED; } /* * Ask the DLL for it's class object. (there was a note here about class * factories but this is good. */ return DllGetClassObject(rclsid, iid, ppv); } return hres; } /**************************************************************************************** * GetClassFile * * This function supplies the CLSID associated with the given filename. */ HRESULT WINAPI GetClassFile(LPOLESTR filePathName,CLSID *pclsid) { IStorage *pstg=0; HRESULT res; int nbElm=0,length=0,i=0; LONG sizeProgId=20; LPOLESTR *pathDec=0,absFile=0,progId=0; WCHAR extention[100]={0}; TRACE("()\n"); /* if the file contain a storage object the return the CLSID writen by IStorage_SetClass method*/ if((StgIsStorageFile(filePathName))==S_OK){ res=StgOpenStorage(filePathName,NULL,STGM_READ | STGM_SHARE_DENY_WRITE,NULL,0,&pstg); if (SUCCEEDED(res)) res=ReadClassStg(pstg,pclsid); IStorage_Release(pstg); return res; } /* if the file is not a storage object then attemps to match various bits in the file against a pattern in the registry. this case is not frequently used ! so I present only the psodocode for this case for(i=0;i=0) && (extention[i]=absFile[i]) );i--); /* get the progId associated to the extension */ progId=CoTaskMemAlloc(sizeProgId); res=RegQueryValueW(HKEY_CLASSES_ROOT,extention,progId,&sizeProgId); if (res==ERROR_MORE_DATA){ CoTaskMemRealloc(progId,sizeProgId); res=RegQueryValueW(HKEY_CLASSES_ROOT,extention,progId,&sizeProgId); } if (res==ERROR_SUCCESS) /* return the clsid associated to the progId */ res= CLSIDFromProgID(progId,pclsid); for(i=0; pathDec[i]!=NULL;i++) CoTaskMemFree(pathDec[i]); CoTaskMemFree(pathDec); CoTaskMemFree(progId); if (res==ERROR_SUCCESS) return res; return MK_E_INVALIDEXTENSION; } /****************************************************************************** * CoRegisterMessageFilter16 [COMPOBJ.27] */ HRESULT WINAPI CoRegisterMessageFilter16( LPMESSAGEFILTER lpMessageFilter, LPMESSAGEFILTER *lplpMessageFilter ) { FIXME("(%p,%p),stub!\n",lpMessageFilter,lplpMessageFilter); return 0; } /*********************************************************************** * CoCreateInstance [COMPOBJ.13, OLE32.7] */ HRESULT WINAPI CoCreateInstance( REFCLSID rclsid, LPUNKNOWN pUnkOuter, DWORD dwClsContext, REFIID iid, LPVOID *ppv) { HRESULT hres; LPCLASSFACTORY lpclf = 0; /* * Sanity check */ if (ppv==0) return E_POINTER; /* * Initialize the "out" parameter */ *ppv = 0; /* * Get a class factory to construct the object we want. */ hres = CoGetClassObject(rclsid, dwClsContext, NULL, &IID_IClassFactory, (LPVOID)&lpclf); if (FAILED(hres)) return hres; /* * Create the object and don't forget to release the factory */ hres = IClassFactory_CreateInstance(lpclf, pUnkOuter, iid, ppv); IClassFactory_Release(lpclf); return hres; } /*********************************************************************** * CoCreateInstanceEx [OLE32.165] */ HRESULT WINAPI CoCreateInstanceEx( REFCLSID rclsid, LPUNKNOWN pUnkOuter, DWORD dwClsContext, COSERVERINFO* pServerInfo, ULONG cmq, MULTI_QI* pResults) { IUnknown* pUnk = NULL; HRESULT hr; ULONG index; int successCount = 0; /* * Sanity check */ if ( (cmq==0) || (pResults==NULL)) return E_INVALIDARG; if (pServerInfo!=NULL) FIXME("() non-NULL pServerInfo not supported!\n"); /* * Initialize all the "out" parameters. */ for (index = 0; index < cmq; index++) { pResults[index].pItf = NULL; pResults[index].hr = E_NOINTERFACE; } /* * Get the object and get it's IUnknown pointer. */ hr = CoCreateInstance(rclsid, pUnkOuter, dwClsContext, &IID_IUnknown, (VOID**)&pUnk); if (hr) return hr; /* * Then, query for all the interfaces requested. */ for (index = 0; index < cmq; index++) { pResults[index].hr = IUnknown_QueryInterface(pUnk, pResults[index].pIID, (VOID**)&(pResults[index].pItf)); if (pResults[index].hr == S_OK) successCount++; } /* * Release our temporary unknown pointer. */ IUnknown_Release(pUnk); if (successCount == 0) return E_NOINTERFACE; if (successCount!=cmq) return CO_S_NOTALLINTERFACES; return S_OK; } /*********************************************************************** * CoFreeLibrary [COMPOBJ.13] */ void WINAPI CoFreeLibrary(HINSTANCE hLibrary) { OpenDll *ptr, *prev; OpenDll *tmp; /* lookup library in linked list */ prev = NULL; for (ptr = openDllList; ptr != NULL; ptr=ptr->next) { if (ptr->hLibrary == hLibrary) { break; } prev = ptr; } if (ptr == NULL) { /* shouldn't happen if user passed in a valid hLibrary */ return; } /* assert: ptr points to the library entry to free */ /* free library and remove node from list */ FreeLibrary(hLibrary); if (ptr == openDllList) { tmp = openDllList->next; HeapFree(GetProcessHeap(), 0, openDllList->DllName); HeapFree(GetProcessHeap(), 0, openDllList); openDllList = tmp; } else { tmp = ptr->next; HeapFree(GetProcessHeap(), 0, ptr->DllName); HeapFree(GetProcessHeap(), 0, ptr); prev->next = tmp; } } /*********************************************************************** * CoFreeAllLibraries [COMPOBJ.12] */ void WINAPI CoFreeAllLibraries(void) { OpenDll *ptr, *tmp; for (ptr = openDllList; ptr != NULL; ) { tmp=ptr->next; CoFreeLibrary(ptr->hLibrary); ptr = tmp; } } /*********************************************************************** * CoFreeUnusedLibraries [COMPOBJ.17] */ void WINAPI CoFreeUnusedLibraries(void) { OpenDll *ptr, *tmp; typedef HRESULT(*DllCanUnloadNowFunc)(void); DllCanUnloadNowFunc DllCanUnloadNow; for (ptr = openDllList; ptr != NULL; ) { DllCanUnloadNow = (DllCanUnloadNowFunc) GetProcAddress(ptr->hLibrary, "DllCanUnloadNow"); if ( (DllCanUnloadNow != NULL) && (DllCanUnloadNow() == S_OK) ) { tmp=ptr->next; CoFreeLibrary(ptr->hLibrary); ptr = tmp; } else { ptr=ptr->next; } } } /*********************************************************************** * CoFileTimeNow [COMPOBJ.82, OLE32.10] * RETURNS * the current system time in lpFileTime */ HRESULT WINAPI CoFileTimeNow( FILETIME *lpFileTime /* [out] the current time */ ) { DOSFS_UnixTimeToFileTime(time(NULL), lpFileTime, 0); return S_OK; } /*********************************************************************** * CoTaskMemAlloc (OLE32.43) * RETURNS * pointer to newly allocated block */ LPVOID WINAPI CoTaskMemAlloc( ULONG size /* [in] size of memoryblock to be allocated */ ) { LPMALLOC lpmalloc; HRESULT ret = CoGetMalloc(0,&lpmalloc); if (FAILED(ret)) return NULL; return IMalloc_Alloc(lpmalloc,size); } /*********************************************************************** * CoTaskMemFree (OLE32.44) */ VOID WINAPI CoTaskMemFree( LPVOID ptr /* [in] pointer to be freed */ ) { LPMALLOC lpmalloc; HRESULT ret = CoGetMalloc(0,&lpmalloc); if (FAILED(ret)) return; IMalloc_Free(lpmalloc, ptr); } /*********************************************************************** * CoTaskMemRealloc (OLE32.45) * RETURNS * pointer to newly allocated block */ LPVOID WINAPI CoTaskMemRealloc( LPVOID pvOld, ULONG size) /* [in] size of memoryblock to be allocated */ { LPMALLOC lpmalloc; HRESULT ret = CoGetMalloc(0,&lpmalloc); if (FAILED(ret)) return NULL; return IMalloc_Realloc(lpmalloc, pvOld, size); } /*********************************************************************** * CoLoadLibrary (OLE32.30) */ HINSTANCE WINAPI CoLoadLibrary(LPOLESTR16 lpszLibName, BOOL bAutoFree) { HINSTANCE hLibrary; OpenDll *ptr; OpenDll *tmp; TRACE("CoLoadLibrary(%p, %d\n", lpszLibName, bAutoFree); hLibrary = LoadLibraryExA(lpszLibName, 0, LOAD_WITH_ALTERED_SEARCH_PATH); if (!bAutoFree) return hLibrary; if (openDllList == NULL) { /* empty list -- add first node */ openDllList = (OpenDll*)HeapAlloc(GetProcessHeap(),0, sizeof(OpenDll)); openDllList->DllName = HEAP_strdupA(GetProcessHeap(), 0, lpszLibName); openDllList->hLibrary = hLibrary; openDllList->next = NULL; } else { /* search for this dll */ int found = FALSE; for (ptr = openDllList; ptr->next != NULL; ptr=ptr->next) { if (ptr->hLibrary == hLibrary) { found = TRUE; break; } } if (!found) { /* dll not found, add it */ tmp = openDllList; openDllList = (OpenDll*)HeapAlloc(GetProcessHeap(),0, sizeof(OpenDll)); openDllList->DllName = HEAP_strdupA(GetProcessHeap(), 0, lpszLibName); openDllList->hLibrary = hLibrary; openDllList->next = tmp; } } return hLibrary; } /*********************************************************************** * CoInitializeWOW (OLE32.27) */ HRESULT WINAPI CoInitializeWOW(DWORD x,DWORD y) { FIXME("(0x%08lx,0x%08lx),stub!\n",x,y); return 0; } /****************************************************************************** * CoLockObjectExternal16 [COMPOBJ.63] */ HRESULT WINAPI CoLockObjectExternal16( LPUNKNOWN pUnk, /* [in] object to be locked */ BOOL16 fLock, /* [in] do lock */ BOOL16 fLastUnlockReleases /* [in] ? */ ) { FIXME("(%p,%d,%d),stub!\n",pUnk,fLock,fLastUnlockReleases); return S_OK; } /****************************************************************************** * CoLockObjectExternal32 [OLE32.31] */ HRESULT WINAPI CoLockObjectExternal( LPUNKNOWN pUnk, /* [in] object to be locked */ BOOL fLock, /* [in] do lock */ BOOL fLastUnlockReleases) /* [in] unlock all */ { if (fLock) { /* * Increment the external lock coutner, COM_ExternalLockAddRef also * increment the object's internal lock counter. */ COM_ExternalLockAddRef( pUnk); } else { /* * Decrement the external lock coutner, COM_ExternalLockRelease also * decrement the object's internal lock counter. */ COM_ExternalLockRelease( pUnk, fLastUnlockReleases); } return S_OK; } /*********************************************************************** * CoGetState16 [COMPOBJ.115] */ HRESULT WINAPI CoGetState16(LPDWORD state) { FIXME("(%p),stub!\n", state); *state = 0; return S_OK; } /*********************************************************************** * CoSetState32 [COM32.42] */ HRESULT WINAPI CoSetState(LPDWORD state) { FIXME("(%p),stub!\n", state); if (state) *state = 0; return S_OK; } /*** * COM_RevokeAllClasses * * This method is called when the COM libraries are uninitialized to * release all the references to the class objects registered with * the library */ static void COM_RevokeAllClasses() { while (firstRegisteredClass!=0) { CoRevokeClassObject(firstRegisteredClass->dwCookie); } } /**************************************************************************** * COM External Lock methods implementation */ /**************************************************************************** * Public - Method that increments the count for a IUnknown* in the linked * list. The item is inserted if not already in the list. */ static void COM_ExternalLockAddRef( IUnknown *pUnk) { COM_ExternalLock *externalLock = COM_ExternalLockFind(pUnk); /* * Add an external lock to the object. If it was already externally * locked, just increase the reference count. If it was not. * add the item to the list. */ if ( externalLock == EL_NOT_FOUND ) COM_ExternalLockInsert(pUnk); else externalLock->uRefCount++; /* * Add an internal lock to the object */ IUnknown_AddRef(pUnk); } /**************************************************************************** * Public - Method that decrements the count for a IUnknown* in the linked * list. The item is removed from the list if its count end up at zero or if * bRelAll is TRUE. */ static void COM_ExternalLockRelease( IUnknown *pUnk, BOOL bRelAll) { COM_ExternalLock *externalLock = COM_ExternalLockFind(pUnk); if ( externalLock != EL_NOT_FOUND ) { do { externalLock->uRefCount--; /* release external locks */ IUnknown_Release(pUnk); /* release local locks as well */ if ( bRelAll == FALSE ) break; /* perform single release */ } while ( externalLock->uRefCount > 0 ); if ( externalLock->uRefCount == 0 ) /* get rid of the list entry */ COM_ExternalLockDelete(externalLock); } } /**************************************************************************** * Public - Method that frees the content of the list. */ static void COM_ExternalLockFreeList() { COM_ExternalLock *head; head = elList.head; /* grab it by the head */ while ( head != EL_END_OF_LIST ) { COM_ExternalLockDelete(head); /* get rid of the head stuff */ head = elList.head; /* get the new head... */ } } /**************************************************************************** * Public - Method that dump the content of the list. */ void COM_ExternalLockDump() { COM_ExternalLock *current = elList.head; printf("\nExternal lock list contains:\n"); while ( current != EL_END_OF_LIST ) { printf( "\t%p with %lu references count.\n", current->pUnk, current->uRefCount); /* Skip to the next item */ current = current->next; } } /**************************************************************************** * Internal - Find a IUnknown* in the linked list */ static COM_ExternalLock* COM_ExternalLockFind( IUnknown *pUnk) { return COM_ExternalLockLocate(elList.head, pUnk); } /**************************************************************************** * Internal - Recursivity agent for IUnknownExternalLockList_Find */ static COM_ExternalLock* COM_ExternalLockLocate( COM_ExternalLock *element, IUnknown *pUnk) { if ( element == EL_END_OF_LIST ) return EL_NOT_FOUND; else if ( element->pUnk == pUnk ) /* We found it */ return element; else /* Not the right guy, keep on looking */ return COM_ExternalLockLocate( element->next, pUnk); } /**************************************************************************** * Internal - Insert a new IUnknown* to the linked list */ static BOOL COM_ExternalLockInsert( IUnknown *pUnk) { COM_ExternalLock *newLock = NULL; COM_ExternalLock *previousHead = NULL; /* * Allocate space for the new storage object */ newLock = HeapAlloc(GetProcessHeap(), 0, sizeof(COM_ExternalLock)); if (newLock!=NULL) { if ( elList.head == EL_END_OF_LIST ) { elList.head = newLock; /* The list is empty */ } else { /* * insert does it at the head */ previousHead = elList.head; elList.head = newLock; } /* * Set new list item data member */ newLock->pUnk = pUnk; newLock->uRefCount = 1; newLock->next = previousHead; return TRUE; } else return FALSE; } /**************************************************************************** * Internal - Method that removes an item from the linked list. */ static void COM_ExternalLockDelete( COM_ExternalLock *itemList) { COM_ExternalLock *current = elList.head; if ( current == itemList ) { /* * this section handles the deletion of the first node */ elList.head = itemList->next; HeapFree( GetProcessHeap(), 0, itemList); } else { do { if ( current->next == itemList ) /* We found the item to free */ { current->next = itemList->next; /* readjust the list pointers */ HeapFree( GetProcessHeap(), 0, itemList); break; } /* Skip to the next item */ current = current->next; } while ( current != EL_END_OF_LIST ); } } /*********************************************************************** * COMPOBJ_DllEntryPoint [COMPOBJ.entry] * * Initialization code for the COMPOBJ DLL * * RETURNS: */ BOOL WINAPI COMPOBJ_DllEntryPoint(DWORD Reason, HINSTANCE16 hInst, WORD ds, WORD HeapSize, DWORD res1, WORD res2) { TRACE("(%08lx, %04x, %04x, %04x, %08lx, %04x)\n", Reason, hInst, ds, HeapSize, res1, res2); switch(Reason) { case DLL_PROCESS_ATTACH: COMPOBJ_Attach++; if(COMPOBJ_hInstance) { ERR("compobj.dll instantiated twice!\n"); /* * We should return FALSE here, but that will break * most apps that use CreateProcess because we do * not yet support seperate address-spaces. */ return TRUE; } COMPOBJ_hInstance = hInst; break; case DLL_PROCESS_DETACH: if(!--COMPOBJ_Attach) COMPOBJ_hInstance = 0; break; } return TRUE; }