Check for result of recvfrom
Check for result of recvfrom

PiperOrigin-RevId: 333399155
Change-Id: I3d79e1e3f45f75d4c4360d42499e511d84b9aff7

google/asylo,google/asylo,google/asylo,google/asylo,google/asylo,google/asylo