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 1.7	*/
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 ** delfilter() - DELETE A FILTER FROM FILTER TABLE
38 **/
39
40int
41#if	defined(__STDC__)
42delfilter (
43	char *			name
44)
45#else
46delfilter (name)
47	char			*name;
48#endif
49{
50	register _FILTER	*pf;
51
52
53	if (!name || !*name) {
54		errno = EINVAL;
55		return (-1);
56	}
57
58	if (STREQU(NAME_ALL, name)) {
59		trash_filters ();
60		goto Done;
61	}
62
63	/*
64	 * Don't need to check for ENOENT, because if it is set,
65	 * well that's what we want to return anyway!
66	 */
67	if (!filters && get_and_load() == -1 /* && errno != ENOENT */ )
68		return (-1);
69
70	if (!(pf = search_filter(name))) {
71		errno = ENOENT;
72		return (-1);
73	}
74
75	free_filter (pf);
76	for (; pf->name; pf++)
77		*pf = *(pf+1);
78
79	nfilters--;
80	filters = (_FILTER *)Realloc(
81		(char *)filters, (nfilters + 1) * sizeof(_FILTER)
82	);
83	if (!filters) {
84		errno = ENOMEM;
85		return (-1);
86	}
87
88/*	filters[nfilters].name = 0; */	/* last for loop above did this */
89
90Done:	return (dumpfilters((char *)0));
91}
92