ERROR(5) File Formats Manual ERROR(5)
NAME
error - return an error
SYNOPSIS
Rerror tag[2] ename[64]
DESCRIPTION
The Rerror request (there is no Terror) is used to return an error
string, of length 64 (ERRLEN in <libc.h>), describing the failure of a
transaction. It replaces the corresponding reply message that would
accompany a successful call; its tag is that of the request.
ERROR(5)