F reply packet has the following format:
retcode is the return code of the system call as hexadecimal value.
errno is the
errno set by the call, in protocol-specific
This parameter can be omitted if the call was successful.
Ctrl-C flag is only sent if the user requested a break. In this case, errno must be sent as well, even if the call was successful. The Ctrl-C flag itself consists of the character ‘C’:
or, if the call was interrupted before the host call has been performed:
assuming 4 is the protocol-specific representation of