Fix go vet issue 'possible misuse of reflect.SliceHeader'

Author: otoolep

sqlite3_opt_serialize.go

@@ -42,11 +42,9 @@ func (c *SQLiteConn) Serialize(schema string) ([]byte, error) {
 		return nil, fmt.Errorf("serialized database is too large (%d bytes)", sz)
 	}
 
-	cBuf := *(*[]byte)(unsafe.Pointer(&reflect.SliceHeader{
-		Data: uintptr(unsafe.Pointer(ptr)),
-		Len:  int(sz),
-		Cap:  int(sz),
-	}))
+	cBuf := make([]byte, int(sz))
+	sh := (*reflect.SliceHeader)(unsafe.Pointer(&cBuf))
+	sh.Data = uintptr(unsafe.Pointer(ptr))
 
 	res := make([]byte, int(sz))
 	copy(res, cBuf)
@@ -65,12 +63,11 @@ func (c *SQLiteConn) Deserialize(b []byte, schema string) error {
 	zSchema = C.CString(schema)
 	defer C.free(unsafe.Pointer(zSchema))
 
+
 	tmpBuf := (*C.uchar)(C.sqlite3_malloc64(C.sqlite3_uint64(len(b))))
-	cBuf := *(*[]byte)(unsafe.Pointer(&reflect.SliceHeader{
-		Data: uintptr(unsafe.Pointer(tmpBuf)),
-		Len:  len(b),
-		Cap:  len(b),
-	}))
+	cBuf := make([]byte, len(b))
+	sh := (*reflect.SliceHeader)(unsafe.Pointer(&cBuf))
+	sh.Data = uintptr(unsafe.Pointer(tmpBuf))
 	copy(cBuf, b)
 
 	rc := C.sqlite3_deserialize(c.db, zSchema, tmpBuf, C.sqlite3_int64(len(b)),