// Enables capstone CS_OPT_SKIPDATA. If no SkipDataConfig is passed ( nil )
// the default behaviour will be enabled. It is valid to pass any combination
// of the SkipDataConfig options, although UserData without a Callback will be
// ignored.
func (e *Engine) SkipDataStart(config *SkipDataConfig) {
if config != nil {
e.skipdata = &C.cs_opt_skipdata{}
if config.Callback != nil {
e.skipdata.callback = (C.cs_skipdata_cb_t)(C.trampoline)
// Happily, we can use the opaque user_data pointer in C to hold both
// the Go callback function and the Go userData
e.skipdata.user_data = unsafe.Pointer(
&cbWrapper{
fn: config.Callback,
ud: config.UserData,
},
)
}
if config.Mnemonic != "" {
e.skipdata.mnemonic = C.CString(config.Mnemonic)
} else {
e.skipdata.mnemonic = C.CString(".byte")
}
C.cs_option(e.handle, CS_OPT_SKIPDATA_SETUP, C.size_t(uintptr(unsafe.Pointer(e.skipdata))))
}
// If there's no config, just turn on skipdata with the default behaviour
C.cs_option(e.handle, CS_OPT_SKIPDATA, CS_OPT_ON)
}
// Disable CS_OPT_SKIPDATA. Removes any registered callbacks and frees
// resources.
func (e *Engine) SkipDataStop() {
C.cs_option(e.handle, CS_OPT_SKIPDATA, CS_OPT_OFF)
if e.skipdata == nil {
return
}
C.free(unsafe.Pointer(e.skipdata.mnemonic))
e.skipdata = nil
}
// Setter for Engine options CS_OPT_*
func (e *Engine) SetOption(ty, value uint) error {
res := C.cs_option(
e.handle,
C.cs_opt_type(ty),
C.size_t(value),
)
if Errno(res) == ErrOK {
return nil
}
return Errno(res)
}