F_DUPFD_CLOEXEC 27 sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.cc #if !defined(F_DUPFD_CLOEXEC) F_DUPFD_CLOEXEC 183 sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.cc ErrorCode::OP_EQUAL, F_DUPFD_CLOEXEC,