conversion.c

php-4.4.7学习linux时下载的源代码

			case VT_UI2|VT_BYREF:
				convert_to_long(pval_arg);
				V_UI2REF(var_arg) = (unsigned short FAR*) &Z_LVAL_P(pval_arg);
				break;

			case VT_UI4|VT_BYREF:
				convert_to_long(pval_arg);
				V_UI4REF(var_arg) = (unsigned long FAR*) &Z_LVAL_P(pval_arg);
				break;

			case VT_INT|VT_BYREF:
				convert_to_long(pval_arg);
				V_INTREF(var_arg) = (int FAR*) &Z_LVAL_P(pval_arg);
				break;

			case VT_UINT|VT_BYREF:
				convert_to_long(pval_arg);
				V_UINTREF(var_arg) = (unsigned int FAR*) &Z_LVAL_P(pval_arg);
				break;

			default:
				php_error(E_WARNING,"Unsupported variant type: %d (0x%X)", V_VT(var_arg), V_VT(var_arg));
		}
	}
}


PHPAPI int php_variant_to_pval(VARIANT *var_arg, pval *pval_arg, int codepage TSRMLS_DC)
{
	/* Changed the function to return a value for recursive error testing */
	/* Existing calls will be unaffected by the change - so it */
	/* seemed like the smallest impact on unfamiliar code */
	int ret = SUCCESS; 

	INIT_PZVAL(pval_arg);

	/* Add SafeArray support */
	if (V_ISARRAY(var_arg)) {
		SAFEARRAY *array = V_ARRAY(var_arg);
		LONG indices[1];
		LONG lbound=0, ubound;
		VARTYPE vartype;
		register int ii;
		UINT Dims;
		VARIANT vv;
		pval *element;
		HRESULT hr;

		/* TODO: Add support for multi-dimensional SafeArrays */
		/* For now just validate that the SafeArray has one dimension */
		if (1 != (Dims = SafeArrayGetDim(array))) {
			php_error(E_WARNING,"Unsupported: multi-dimensional (%d) SafeArrays", Dims);
			ZVAL_NULL(pval_arg);
			return FAILURE;
		}
        SafeArrayLock(array);

		/* This call has failed for everything I have tried */
		/* But best leave it to be on the safe side */
		if (FAILED(SafeArrayGetVartype(array, &vartype)) || (vartype == VT_EMPTY)) {
			/* Fall back to what we do know */
			/* Mask off the array bit and assume */
			/* what is left is the type of the array */
			/* elements */
			vartype = V_VT(var_arg) & ~VT_ARRAY;
		}
		SafeArrayGetUBound(array, 1, &ubound);
		SafeArrayGetLBound(array, 1, &lbound);

		/* Since COM returned an array we set up the php */
		/* return value to be an array */
		array_init(pval_arg);

		/* Walk the safe array */
		for (ii=lbound;ii<=ubound;ii++) {
			indices[0] = ii;
			VariantInit(&vv); /* Docs say this just set the vt field, but you never know */
			/* Set up a variant to pass to a recursive call */
			/* So that we do not need to have two copies */
			/* of the code */
			if (VT_VARIANT == vartype) {
				hr = SafeArrayGetElement(array, indices, (VOID *) &(vv));
			} else {
				V_VT(&vv) = vartype;
				hr = SafeArrayGetElement(array, indices, (VOID *) &(vv.lVal));
			}
			if (FAILED(hr)) {
				/* Failure to retieve an element probably means the array is sparse */
				/* So leave the php array sparse too */
				continue;
			}
			/* Create an element to be added to the array */
			ALLOC_ZVAL(element);
			/* Call ourself again to handle the base type conversion */
			/* If SafeArrayGetElement proclaims to allocate */
			/* memory for a BSTR, so the recursive call frees */
			/* the string correctly */
			if (FAILURE == php_variant_to_pval(&vv, element, codepage TSRMLS_CC)) {
				/* Error occurred setting up array element */
				/* Error was displayed by the recursive call */
				FREE_ZVAL(element);
				/* TODO: Do we stop here, or go on and */
				/* try to make sense of the rest of the array */
				/* Going on leads to multiple errors displayed */
				/* for the same conversion. For large arrays that */
				/* could be very annoying */
				/* And if we don't go on - what to do about */
				/* the parts of the array that are OK? */
				/* break; */
			} else {
				/* Just insert the element into our return array */
				add_index_zval(pval_arg, ii, element);
			}
		}
		SafeArrayUnlock(array);
	} else switch (var_arg->vt & ~VT_BYREF) {
		case VT_EMPTY:
			ZVAL_NULL(pval_arg);
			break;

		case VT_UI1:
			if (V_ISBYREF(var_arg)) {
				ZVAL_LONG(pval_arg, (long)*V_UI1REF(var_arg));
			} else {
				ZVAL_LONG(pval_arg, (long)V_UI1(var_arg));
			}
			break;

		case VT_I2:
			if (V_ISBYREF(var_arg)) {
				ZVAL_LONG(pval_arg, (long )*V_I2REF(var_arg));
			} else {
				ZVAL_LONG(pval_arg, (long)V_I2(var_arg));
			}
			break;

		case VT_I4:
			if (V_ISBYREF(var_arg)) {
				ZVAL_LONG(pval_arg, *V_I4REF(var_arg));
			} else {
				ZVAL_LONG(pval_arg, V_I4(var_arg));
			}
			break;

		case VT_R4:
			if (V_ISBYREF(var_arg)) {
				ZVAL_DOUBLE(pval_arg, (double)*V_R4REF(var_arg));
			} else {
				ZVAL_DOUBLE(pval_arg, (double)V_R4(var_arg));
			}
			break;

		case VT_R8:
			if (V_ISBYREF(var_arg)) {
				ZVAL_DOUBLE(pval_arg, *V_R8REF(var_arg));
			} else {
				ZVAL_DOUBLE(pval_arg, V_R8(var_arg));
			}
			break;

		/* 96bit uint */
		case VT_DECIMAL: {
				OLECHAR *unicode_str;
				switch (VarBstrFromDec(&V_DECIMAL(var_arg), LOCALE_SYSTEM_DEFAULT, 0, &unicode_str)) {
					case S_OK:
						Z_STRVAL_P(pval_arg) = php_OLECHAR_to_char(unicode_str, &Z_STRLEN_P(pval_arg), codepage TSRMLS_CC);
						Z_TYPE_P(pval_arg) = IS_STRING;
						break;

					default:
						ZVAL_NULL(pval_arg);
						ret = FAILURE;
						php_error(E_WARNING, "Error converting DECIMAL value to PHP string");
						break;
				}
			}
			break;

		/* Currency */
		case VT_CY:
			if (V_ISBYREF(var_arg)) {
				VarR8FromCy(*V_CYREF(var_arg), &Z_DVAL_P(pval_arg));
			} else {
				VarR8FromCy(V_CY(var_arg), &Z_DVAL_P(pval_arg));
			}
			Z_TYPE_P(pval_arg) = IS_DOUBLE;
			break;

		case VT_BOOL:
			if (V_ISBYREF(var_arg)) {
				if (*V_BOOLREF(var_arg)) {
					ZVAL_BOOL(pval_arg, Z_TRUE);
				} else {
					ZVAL_BOOL(pval_arg, Z_FALSE);
				}
			} else {
				if (V_BOOL(var_arg)) {
					ZVAL_BOOL(pval_arg, Z_TRUE);
				} else {
					ZVAL_BOOL(pval_arg, Z_FALSE);
				}
			}
			break;

		case VT_NULL:
		case VT_VOID:
			ZVAL_NULL(pval_arg);
			break;

		case VT_VARIANT:
			php_variant_to_pval(V_VARIANTREF(var_arg), pval_arg, codepage TSRMLS_CC);
			break;

		case VT_BSTR:
			Z_TYPE_P(pval_arg) = IS_STRING;

			if (V_ISBYREF(var_arg)) {
				if (*V_BSTR(var_arg)) {
					Z_STRVAL_P(pval_arg) = php_OLECHAR_to_char(*V_BSTRREF(var_arg), &Z_STRLEN_P(pval_arg), codepage TSRMLS_CC);
				} else {
					ZVAL_NULL(pval_arg);
				}
				efree(V_BSTRREF(var_arg));
			} else {
				if (V_BSTR(var_arg)) {
					Z_STRVAL_P(pval_arg) = php_OLECHAR_to_char(V_BSTR(var_arg), &Z_STRLEN_P(pval_arg), codepage TSRMLS_CC);
				} else {
					ZVAL_NULL(pval_arg);
				}
			}

			break;

		case VT_DATE: {
				BOOL success;
				SYSTEMTIME wintime;
				struct tm phptime;

				if (V_ISBYREF(var_arg)) {
					success = VariantTimeToSystemTime(*V_DATEREF(var_arg), &wintime);
				} else {
					success = VariantTimeToSystemTime(V_DATE(var_arg), &wintime);
				}

				if (success) {
					memset(&phptime, 0, sizeof(phptime));

					phptime.tm_year  = wintime.wYear - 1900;
					phptime.tm_mon   = wintime.wMonth - 1;
					phptime.tm_mday  = wintime.wDay;
					phptime.tm_hour  = wintime.wHour;
					phptime.tm_min   = wintime.wMinute;
					phptime.tm_sec   = wintime.wSecond;
					phptime.tm_isdst = -1;

					tzset();
					ZVAL_LONG(pval_arg, mktime(&phptime));
				} else {
					ret = FAILURE;
				}
			}
			break;

		case VT_UNKNOWN:
			if (V_UNKNOWN(var_arg) == NULL) {
				V_DISPATCH(var_arg) = NULL;
			} else {
				HRESULT hr;

				hr = V_UNKNOWN(var_arg)->lpVtbl->QueryInterface(var_arg->punkVal, &IID_IDispatch, &V_DISPATCH(var_arg));

				if (FAILED(hr)) {
					char *error_message;

					error_message = php_COM_error_message(hr TSRMLS_CC);
					php_error(E_WARNING,"Unable to obtain IDispatch interface:  %s", error_message);
					LocalFree(error_message);

					V_DISPATCH(var_arg) = NULL;
				}
			}
			/* break missing intentionaly */
		case VT_DISPATCH: {
				comval *obj;

				if (V_DISPATCH(var_arg) == NULL) {
					ret = FAILURE;
					ZVAL_NULL(pval_arg);
				} else {
					ALLOC_COM(obj);
					php_COM_set(obj, &V_DISPATCH(var_arg), FALSE TSRMLS_CC);
					
					ZVAL_COM(pval_arg, obj);
				}
			}
			break;

		case VT_I1:
			if (V_ISBYREF(var_arg)) {
				ZVAL_LONG(pval_arg, (long)*V_I1REF(var_arg));
			} else {
				ZVAL_LONG(pval_arg, (long)V_I1(var_arg));
			}
			break;

		case VT_UI2:
			if (V_ISBYREF(var_arg)) {
				ZVAL_LONG(pval_arg, (long)*V_UI2REF(var_arg));
			} else {
				ZVAL_LONG(pval_arg, (long)V_UI2(var_arg));
			}
			break;

		case VT_UI4:
			if (V_ISBYREF(var_arg)) {
				ZVAL_LONG(pval_arg, (long)*V_UI4REF(var_arg));
			} else {
				ZVAL_LONG(pval_arg, (long)V_UI4(var_arg));
			}
			break;

		case VT_INT:
			if (V_ISBYREF(var_arg)) {
				ZVAL_LONG(pval_arg, (long)*V_INTREF(var_arg));
			} else {
				ZVAL_LONG(pval_arg, (long)V_INT(var_arg));
			}
			break;

		case VT_UINT:
			if (V_ISBYREF(var_arg)) {
				ZVAL_LONG(pval_arg, (long)*V_UINTREF(var_arg));
			} else {
				ZVAL_LONG(pval_arg, (long)V_UINT(var_arg));
			}
			break;

		default:
			php_error(E_WARNING,"Unsupported variant type: %d (0x%X)", V_VT(var_arg), V_VT(var_arg));
			ZVAL_NULL(pval_arg);
			ret = FAILURE;
			break;
	}
	return ret;
}


PHPAPI OLECHAR *php_char_to_OLECHAR(char *C_str, uint strlen, int codepage TSRMLS_DC)
{
	BOOL error = FALSE;
	OLECHAR *unicode_str;

	if (strlen == -1) {
		/* request needed buffersize */
		strlen = MultiByteToWideChar(codepage, (codepage == CP_UTF8 ? 0 : MB_PRECOMPOSED | MB_ERR_INVALID_CHARS), C_str, -1, NULL, 0);
	} else {
		/* \0 terminator */
		strlen++;
	}

	if (strlen >= 0) {
		unicode_str = (OLECHAR *) emalloc(sizeof(OLECHAR) * strlen);

		/* convert string */
		error = !MultiByteToWideChar(codepage, (codepage == CP_UTF8 ? 0 : MB_PRECOMPOSED | MB_ERR_INVALID_CHARS), C_str, strlen, unicode_str, strlen);
	} else {
		/* return a zero-length string */
		unicode_str = (OLECHAR *) emalloc(sizeof(OLECHAR));
		*unicode_str = 0;

		error = TRUE;
	}

	if (error) {
		switch (GetLastError()) {
			case ERROR_NO_UNICODE_TRANSLATION:
				php_error(E_WARNING, "No unicode translation available for the specified string");
				break;
			case ERROR_INSUFFICIENT_BUFFER:
				php_error(E_WARNING, "Internal Error: Insufficient Buffer");
				break;
			default:
				php_error(E_WARNING, "Unknown error in php_char_to_OLECHAR()");
		}
	}

	return unicode_str;
}


PHPAPI char *php_OLECHAR_to_char(OLECHAR *unicode_str, uint *out_length, int codepage TSRMLS_DC)
{
	char *C_str;
	uint length = 0;

	/* request needed buffersize */
	uint reqSize = WideCharToMultiByte(codepage, codepage == CP_UTF8 ? 0 : WC_COMPOSITECHECK, unicode_str, -1, NULL, 0, NULL, NULL);

	if (reqSize) {
		C_str = (char *) emalloc(sizeof(char) * reqSize);

		/* convert string */
		length = WideCharToMultiByte(codepage, codepage == CP_UTF8 ? 0 : WC_COMPOSITECHECK, unicode_str, -1, C_str, reqSize, NULL, NULL) - 1;
	} else {
		C_str = (char *) emalloc(sizeof(char));
		*C_str = 0;

		php_error(E_WARNING,"Error in php_OLECHAR_to_char()");
	}

	if (out_length) {
		*out_length = length;
	}

	return C_str;
}


static void comval_to_variant(pval *pval_arg, VARIANT *var_arg TSRMLS_DC)
{
	pval **comval_handle;
	comval *obj;
	int type;

	/* fetch the comval structure */
	zend_hash_index_find(Z_OBJPROP_P(pval_arg), 0, (void **) &comval_handle);
	obj = (comval *)zend_list_find(Z_LVAL_P(*comval_handle), &type);
	if (!obj || (type != IS_COM) || !C_ISREFD(obj)) {
		VariantInit(var_arg);
	} else {
		V_VT(var_arg) = VT_DISPATCH;
		V_DISPATCH(var_arg) = C_DISPATCH(obj);
	}
}

#endif /* PHP_WIN32 */