'\" t
.\"     Title: ECONF_GETKEYS
.\"    Author: libeconf developers
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\"      Date: 2023-12-15
.\"    Manual: libeconf Manual
.\"    Source: libeconf
.\"  Language: English
.\"
.TH "ECONF_GETKEYS" "3" "2023\-12\-15" "libeconf" "libeconf Manual"
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.SH "NAME"
econf_getKeys \- evaluate all keys of a specific group

.SH "SYNOPSIS"

.sp
.ft B
.nf
#include <libeconf\&.h>
.fi
.ft
.sp

.BI "econf_err econf_getKeys(econf_file\ *" "kf" ", const\ char\ *" "group" ", size_t\ *" "length" ", char\ ***" "keys" ");"

.SH "DESCRIPTION"

.PP
The \fBeconf_getKeys\fR() function retrieves all keys belonging to a specific
\fIgroup\fR from the configuration file object pointed to by \fIkf\fR\&.

.PP
The \fIgroup\fR parameter specifies the name of the section (group) to be evaluated\&. If \fIgroup\fR is \fBNULL\fR, the function retrieves keys that do not belong to any specific group (entries defined at the beginning of the file)\&.

.PP
The total number of keys found is stored in the integer pointed to by
\fIlength\fR\&.

.PP
The names of the keys are stored in a dynamically allocated array of strings, which is returned via the \fIkeys\fR pointer\&. The memory for this array is allocated by the library and should be freed by the caller using \fBeconf_freeArray\fR() or an equivalent method when it is no longer needed\&.

.SH "RETURN VALUE"

.PP
Upon successful completion, the function returns \fBECONF_SUCCESS\fR\&.

.PP
Otherwise, an error value is returned to indicate the error condition\&.

.SH "ERRORS"

.PP
\fBECONF_ARGUMENT_IS_NULL_VALUE\fR
.RS 4
          The value specified by \fIkf\fR or \fIkeys\fR is \fBNULL\fR\&.

.RE
.PP
\fBECONF_NOKEY\fR
.RS 4
          Keys not found\&.

.RE
.PP
\fBECONF_NOMEM\fR
.RS 4
          Insufficient memory could be allocated for the return array\&.

.RE

.SH "SEE ALSO"

.PP
\fBlibeconf\fR(3),
\fBeconf_getGroups\fR(3),
\fBeconf_freeArray\fR(3),
\fBeconf_readFile\fR(3),
\fBeconf_errString\fR(3)\&.