EOPNOTSUPPEOPNOTSUPP — Operation Not Supported
The requested operation is not supported by the socket type or protocol.
EUSERSThe system has reached the maximum number of concurrent users.
The system-wide limit on logged-in users has been reached. This is primarily relevant for NFS and legacy UNIX systems.
Wait for other users to log out. Contact the system administrator to increase the limit. Check for stale sessions.
EOPNOTSUPPThe requested operation is not supported by the socket type or protocol.
SIGIO (29)A file descriptor is ready for I/O, used with signal-driven async I/O.
ECHILDThe calling process has no existing child processes to wait for.
ECONNREFUSEDNo process is listening on the target address and port, so the connection was actively refused.
EOVERFLOWA value is too large to be stored in the target data type.
SIGBUS (7)The process attempted an invalid memory access due to misaligned access or accessing a nonexistent physical address.