Tetsujin

Calling "socketpair" with a readonly varname errors out, but still opens a socket pair

Implement adaptive message length/FD vector length for recvmsg

sendmsg and recvmsg should allow zero-length datagrams

recvmsg --nonblocking relies on nonportable MSG_DONTWAIT option

Implement Zsh support

Establish a Test Suite

Establish a Test Suite

Bash builtins don't clear target array before assigning elements