.\" $OpenBSD: ERR_asprintf_error_data.3,v 1.2 2017/02/21 07:15:21 jmc Exp $
.\"
.\" Copyright (c) 2017 Bob Beck <beck@openbsd.org>
.\"
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.Dd $Mdocdate: February 21 2017 $
.Dt ERR_ASPRINTF_ERROR_DATA 3
.Os
.Sh NAME
.Nm ERR_asprintf_error_data
.Nd record a LibreSSL error using a formatted string
.Sh SYNOPSIS
.In openssl/err.h
.Ft void
.Fo ERR_asprintf_error_data
.Fa "char * format"
.Fa ...
.Fc
.Sh DESCRIPTION
.Nm
builds a string using
.Xr asprintf 3
called with the provided
.Ar format
and arguments.
The resulting string is then associated with the error code that was most
recently added.
If
.Xr asprintf 3
fails, the string "malloc failed" is associated instead.
.Pp
.Nm
is intended to be used instead of the OpenSSL functions
.Xr ERR_add_error_data 3
and
.Xr ERR_add_error_vdata 3 .
.Sh SEE ALSO
.Xr ERR 3 ,
.Xr ERR_put_error 3 ,
.Xr printf 3
.Sh HISTORY
.Nm
appeared in
.Ox 5.6
and is available in all versions of LibreSSL.