setsockopt        241 ext/socket/basicsocket.c     if (setsockopt(fptr->fd, level, option, v, vlen) < 0)
setsockopt         94 ext/socket/ipsocket.c 	    setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
setsockopt       3607 win32/win32.c  	r = setsockopt(TO_SOCKET(s), level, optname, optval, optlen);