PROTECTED_ENVIRON_FD  566 dmtcp_restart.cpp   JASSERT(dup2(fd, PROTECTED_ENVIRON_FD) == PROTECTED_ENVIRON_FD)
PROTECTED_ENVIRON_FD  569 dmtcp_restart.cpp   fd = PROTECTED_ENVIRON_FD;
PROTECTED_ENVIRON_FD  311 dmtcpplugin.cpp   return PROTECTED_ENVIRON_FD;
PROTECTED_ENVIRON_FD   97 processinfo.cpp         _real_close(PROTECTED_ENVIRON_FD);