.TH ERROR 9P | |
.SH NAME | |
error \- return an error | |
.SH SYNOPSIS | |
.ta \w'\fLRerror 'u | |
.IR size [4] | |
.B Rerror | |
.IR tag [2] | |
.IR ename [ s ] | |
.SH DESCRIPTION | |
The | |
.B Rerror | |
message | |
(there is no | |
.BR 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. | |
.PP | |
By convention, clients may truncate error messages after | |
.B ERRMAX-1 | |
bytes; | |
.B ERRMAX | |
is defined in | |
.BR <libc.h> . |