rndc: catch ISC_R_CANCELED in rndc_recvdone()
this result code was being ignored, which could cause a crash when trying to dereference ccmsg->buffer.
Closes #3080 (closed)
Edited by Michał Kępień
this result code was being ignored, which could cause a crash when trying to dereference ccmsg->buffer.
Closes #3080 (closed)