NAME

error − return an error

SYNOPSIS

size[4] ­Rerror tag[2] ename[s]

DESCRIPTION

The ­Rerror message (there is no Terror) is used to return an error string describing the failure of a transaction.  It replaces the corresponding reply message that would accompany a successful call; its tag is that of the failing request. 

By convention, clients may truncate error messages after ­ERRMAX-1 bytes; ­ERRMAX is defined in <libc.h>. 

Plan 9  —  March 25, 2004