Files
scummvm/engines/ags/engine/ac/dynobj/script_string.cpp
T
Paul Gilbert 63c42d42c3 AGS: Fixed ScriptString could be serialized with wrong length
From upstream c00be4f9ee9501aebb0abc81ebbe5b4f2ffb0c0c
2022-05-05 22:41:09 -07:00

84 lines
2.2 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "ags/engine/ac/dynobj/script_string.h"
#include "ags/engine/ac/string.h"
#include "ags/engine/ac/string.h"
#include "ags/shared/util/stream.h"
namespace AGS3 {
using namespace AGS::Shared;
DynObjectRef ScriptString::CreateString(const char *fromText) {
return CreateNewScriptStringObj(fromText);
}
int ScriptString::Dispose(const char *address, bool force) {
// always dispose
if (_text) {
free(_text);
_text = nullptr;
}
delete this;
return 1;
}
const char *ScriptString::GetType() {
return "String";
}
size_t ScriptString::CalcSerializeSize() {
return _len + 1 + sizeof(int32_t);
}
void ScriptString::Serialize(const char * /*address*/, Stream *out) {
const auto *cstr = _text ? _text : "";
out->WriteInt32(_len);
out->Write(cstr, _len + 1);
}
void ScriptString::Unserialize(int index, Stream *in, size_t /*data_sz*/) {
_len = in->ReadInt32();
_text = (char *)malloc(_len + 1);
in->Read(_text, _len + 1);
_text[_len] = 0; // for safety
ccRegisterUnserializedObject(index, _text, this);
}
ScriptString::ScriptString(const char *text) {
_len = strlen(text);
_text = (char *)malloc(_len + 1);
memcpy(_text, text, _len + 1);
}
ScriptString::ScriptString(char *text, bool take_ownership) {
_len = strlen(text);
if (take_ownership) {
_text = text;
} else {
_text = (char *)malloc(_len + 1);
memcpy(_text, text, _len + 1);
}
}
} // namespace AGS3