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.\"
.IX Title "REMCTL_ERROR 3"
.TH REMCTL_ERROR 3 "2022-05-09" "3.18" "remctl Library Reference"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.nh
.SH "NAME"
remctl_error \- Retrieve the error from a failed remctl operation
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
#include <remctl.h>
.PP
const char *\fBremctl_error\fR(struct remctl *\fIr\fR);
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\fBremctl_error()\fR returns the error from a previously failed remctl
operation.  Its only argument is a remctl struct as returned by
\&\fBremctl_new()\fR.  If the previous remctl operation was successful, returns
the constant string \*(L"No error\*(R".
.PP
The caller may not modify the returned string.  The string may even be
stored in read-only memory and attempting to modify it may cause a memory
fault.  The returned pointer will be invalidated by the next call to any
remctl \s-1API\s0 function with the same client object, other than
\&\fBremctl_error()\fR.
.SH "RETURN VALUE"
.IX Header "RETURN VALUE"
\&\fBremctl_error()\fR returns either the previous error or the constant string
\&\*(L"No error\*(R".  It will never return \s-1NULL.\s0
.SH "COMPATIBILITY"
.IX Header "COMPATIBILITY"
This interface has been provided by the remctl client library since its
initial release in version 2.0.
.SH "AUTHOR"
.IX Header "AUTHOR"
Russ Allbery <eagle@eyrie.org>
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
Copyright 2007, 2009, 2014 The Board of Trustees of the Leland Stanford
Junior University
.PP
Copying and distribution of this file, with or without modification, are
permitted in any medium without royalty provided the copyright notice and
this notice are preserved.  This file is offered as-is, without any
warranty.
.PP
SPDX-License-Identifier: \s-1FSFAP\s0
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBremctl_new\fR\|(3), \fBremctl_open\fR\|(3), \fBremctl_command\fR\|(3), \fBremctl_commandv\fR\|(3),
\&\fBremctl_output\fR\|(3)
.PP
The current version of the remctl library and complete details of the
remctl protocol are available from its web page at
<https://www.eyrie.org/~eagle/software/remctl/>.