remove dead code, make c89 compatible, fix SELECT.1 parsing
remove dead code, make c89 compatible, fix SELECT.1 parsing

fengjian/libinjection,ppliu1979/libinjection,dijkstracula/libinjection,fengjian/libinjection,ppliu1979/libinjection,dijkstracula/libinjection,fengjian/libinjection,ppliu1979/libinjection,dijkstracula/libinjection,fengjian/libinjection,dijkstracula/libinjection,fengjian/libinjection,ppliu1979/libinjection,fengjian/libinjection,fengjian/libinjection,ppliu1979/libinjection,dijkstracula/libinjection,dijkstracula/libinjection,ppliu1979/libinjection