'\" t
.\"  <!-- Copyright 2004 Double Precision, Inc.  See COPYING for -->
.\"  <!-- distribution information. -->
.\"     Title: auth_getoption
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: 08/25/2013
.\"    Manual: Double Precision, Inc.
.\"    Source: Double Precision, Inc.
.\"  Language: English
.\"
.TH "AUTH_GETOPTION" "3" "08/25/2013" "Double Precision, Inc." "Double Precision, Inc."
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.SH "NAME"
auth_getoption \- Search an option string
.SH "SYNOPSIS"
.sp
.nf
#include <courierauth\&.h>
.fi
.HP \w'char\ *value=auth_getoption('u
.BI "char *value=auth_getoption(const\ char\ *" "options" ", const\ char\ *" "keyword" ");"
.SH "DESCRIPTION"
.PP
This is a convenience function for parsing account options, as received by the callback function invoked by
\m[blue]\fB\fBauth_generic\fR(3)\fR\m[]\&\s-2\u[1]\d\s+2,
\m[blue]\fB\fBauth_login\fR(3)\fR\m[]\&\s-2\u[2]\d\s+2,
\m[blue]\fB\fBauth_getuserinfo\fR(3)\fR\m[]\&\s-2\u[3]\d\s+2, and
\m[blue]\fB\fBauth_passwd\fR(3)\fR\m[]\&\s-2\u[4]\d\s+2\&.
.PP
\fIoptions\fR
is the
\fIoptions\fR
field from
authinfo
(which can be
NULL)\&. As described in
\m[blue]\fB\fBauth_generic\fR(3)\fR\m[]\&\s-2\u[1]\d\s+2
(and the others), it is a comma\-separated list of
\(lq\fIkeyword\fR=\fIvalue\fR\(rq
pairs\&.
.PP
\fBauth_getoption\fR
searches
\fIoptions\fR
for a
\fIkeyword\fR\&.
.SH "RETURNS"
.PP
If
\fIoptions\fR
does not have the
\fIkeyword\fR,
\fBauth_getoption\fR
returns
NULL
with
\fIerrno\fR
set to
ENOENT\&. Otherwise
\fBauth_getoption\fR
allocates a buffer for
\fIvalue\fR, and returns it\&. It is the caller\*(Aqs responsibility to
\fBfree\fR(3)
the returned buffer\&.
.PP
\fBauth_getoption\fR
returns
NULL
with
\fIerrno\fR
set to
ENOMEM
if it cannot allocate a buffer\&.
.SH "SEE ALSO"
.PP
\m[blue]\fB\fBauthlib\fR(3)\fR\m[]\&\s-2\u[5]\d\s+2,
\m[blue]\fB\fBauth_generic\fR(3)\fR\m[]\&\s-2\u[1]\d\s+2,
\m[blue]\fB\fBauth_login\fR(3)\fR\m[]\&\s-2\u[2]\d\s+2,
\m[blue]\fB\fBauth_getuserinfo\fR(3)\fR\m[]\&\s-2\u[3]\d\s+2\&.
.SH "NOTES"
.IP " 1." 4
\fBauth_generic\fR(3)
.RS 4
\%[set $man.base.url.for.relative.links]/auth_generic.html
.RE
.IP " 2." 4
\fBauth_login\fR(3)
.RS 4
\%[set $man.base.url.for.relative.links]/auth_login.html
.RE
.IP " 3." 4
\fBauth_getuserinfo\fR(3)
.RS 4
\%[set $man.base.url.for.relative.links]/auth_getuserinfo.html
.RE
.IP " 4." 4
\fBauth_passwd\fR(3)
.RS 4
\%[set $man.base.url.for.relative.links]/auth_passwd.html
.RE
.IP " 5." 4
\fBauthlib\fR(3)
.RS 4
\%[set $man.base.url.for.relative.links]/authlib.html
.RE