RLIMIT_SBSIZE
#ifdef RLIMIT_SBSIZE
{ "socket buffer size", "bytes", RLIMIT_SBSIZE, 1, 'b' },
{ "sbsize", login_getcapsize, RLIMIT_SBSIZE },
case RLIMIT_SBSIZE:
sbsize_limit = lim_cur(td, RLIMIT_SBSIZE);
case RLIMIT_SBSIZE: