getsockopt       1334 native_client_sdk/src/libraries/nacl_io/kernel_proxy.cc int KernelProxy::getsockopt(int fd,
getsockopt         10 native_client_sdk/src/libraries/nacl_io/syscalls/getsockopt.c int getsockopt(int fd, int lvl, int optname, void* optval, socklen_t* len) {