ESRCHESRCH — No Such Process
No process matching the specified process ID was found.
ENOTSOCKA socket operation was attempted on a file descriptor that is not a socket.
A socket-specific system call was used on a file descriptor that refers to a regular file, pipe, or other non-socket object.
Verify that the file descriptor is a socket using fstat(). Ensure the socket has not been closed before performing operations on it.
ESRCHNo process matching the specified process ID was found.
ENETRESETThe network connection was reset due to a network-level event.
ENODEVThe requested device type or device driver is not available in the system.
EBADFA file descriptor argument is not a valid open file descriptor or is not open for the requested operation.
ESPIPEA seek operation was attempted on a file descriptor that does not support seeking.
EHOSTDOWNThe destination host is down and unreachable.