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src/gui/lua/lua_video.cpp fix possible segfault if argument is not a string (nil)

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Jacek Jendrzej
2016-07-22 17:24:39 +02:00
parent 5be8af9890
commit 021db3ab04
1 changed files with 17 additions and 0 deletions
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17
src/gui/lua/lua_video.cpp
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@@ -153,6 +153,23 @@ int CLuaInstVideo::PlayFile(lua_State *L)
printf("CLuaInstVideo::%s: not enough arguments (%d, expected 3)\n", __func__, numargs); printf("CLuaInstVideo::%s: not enough arguments (%d, expected 3)\n", __func__, numargs);
return 0; return 0;
} }
const char *errmsg = "is not a string.";
if(!lua_isstring(L,2)){
printf("CLuaInstVideo::%s: argument 1 %s\n", __func__, errmsg);
return 0;
}
if(!lua_isstring(L,3)){
printf("CLuaInstVideo::%s: argument 2 %s\n", __func__, errmsg);
return 0;
}
if(numargs > 3 && !lua_isstring(L,4)){
printf("CLuaInstVideo::%s: argument 3 %s\n", __func__, errmsg);
return 0;
}
if(numargs > 4 && !lua_isstring(L,5)){
printf("CLuaInstVideo::%s: argument 4 %s\n", __func__, errmsg);
return 0;
}
bool sp = false; bool sp = false;
if (luaL_testudata(L, 1, LUA_CLASSNAME) == NULL) if (luaL_testudata(L, 1, LUA_CLASSNAME) == NULL)