1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
23/*	  All Rights Reserved  	*/
24
25
26#ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 1.6	*/
27/* EMACS_MODES: !fill, lnumb, !overwrite, !nodelete, !picture */
28
29#include "errno.h"
30#include "string.h"
31#include "stdlib.h"
32
33#include "lp.h"
34#include "filters.h"
35
36/**
37 ** getfilter() - GET FILTER FROM FILTER TABLE
38 **/
39
40FILTER *
41#if	defined(__STDC__)
42getfilter (
43	char *			name
44)
45#else
46getfilter (name)
47	char			*name;
48#endif
49{
50	static _FILTER		*pf	= 0;
51
52	static FILTER		flbuf;
53
54
55	if (!name || !*name) {
56		errno = EINVAL;
57		return (0);
58	}
59
60	/*
61	 * Don't need to check for ENOENT, because if it is set,
62	 * well that's what we want to return anyway!
63	 */
64	if (!filters && get_and_load() == -1 /* && errno != ENOENT */ )
65		return (0);
66
67	if (STREQU(NAME_ALL, name))
68		if (pf) {
69			if (!(++pf)->name)
70				pf = 0;
71		} else
72			pf = filters;
73	else
74		pf = search_filter(name);
75
76	if (!pf || !pf->name) {
77		errno = ENOENT;
78		return (0);
79	}
80
81	flbuf.name = Strdup(pf->name);
82	flbuf.command = (pf->command? Strdup(pf->command) : 0);
83	flbuf.type = pf->type;
84	flbuf.printer_types = typel_to_sl(pf->printer_types);
85	flbuf.printers = duplist(pf->printers);
86	flbuf.input_types = typel_to_sl(pf->input_types);
87	flbuf.output_types = typel_to_sl(pf->output_types);
88	flbuf.templates = templatel_to_sl(pf->templates);
89
90	/*
91	 * Make sure a subsequent ``all'' query starts getting
92	 * filters from the beginning.
93	 */
94	if (!STREQU(NAME_ALL, name))
95		pf = 0;
96
97	return (&flbuf);
98}
99