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 (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
28 /* All Rights Reserved */
29
30
31 #pragma ident "%Z%%M% %I% %E% SMI"
32 /* EMACS_MODES: !fill, lnumb, !overwrite, !nodelete, !picture */
33
34 #include "stdio.h"
35 #include "string.h"
36 #include "errno.h"
37 #include "sys/types.h"
38 #include <syslog.h>
39
40 #include "lp.h"
41 #include "class.h"
42
43 /**
44 ** getclass() - READ CLASS FROM TO DISK
45 **/
46
47 CLASS *
getclass(char * name)48 getclass(char *name)
49 {
50 static long lastdir = -1;
51
52 CLASS *clsp;
53
54 char *file,
55 buf[BUFSIZ];
56
57 int fd;
58
59 syslog(LOG_DEBUG, "getclass(%s)", name ? name : "");
60
61 if (!name || !*name) {
62 errno = EINVAL;
63 return (0);
64 }
65
66 /*
67 * Getting ``all''? If so, jump into the directory
68 * wherever we left off.
69 */
70 if (STREQU(NAME_ALL, name)) {
71 if (!(name = next_file(Lp_A_Classes, &lastdir)))
72 return (0);
73 } else
74 lastdir = -1;
75
76 /*
77 * Get the class list.
78 */
79
80 if (!(file = getclassfile(name)))
81 return (0);
82
83 if ((fd = open_locked(file, "r", 0)) < 0) {
84 Free (file);
85 return (0);
86 }
87 Free (file);
88
89 clsp = (CLASS *)calloc(sizeof (*clsp), 1);
90
91 if (!(clsp->name = Strdup(name))) {
92 Free (clsp);
93 close(fd);
94 errno = ENOMEM;
95 return (0);
96 }
97
98 clsp->members = 0;
99 errno = 0;
100 while (fdgets(buf, BUFSIZ, fd)) {
101 buf[strlen(buf) - 1] = 0;
102 addlist (&clsp->members, buf);
103 }
104 if (errno != 0) {
105 int save_errno = errno;
106
107 freelist (clsp->members);
108 Free (clsp->name);
109 Free (clsp);
110 close(fd);
111 errno = save_errno;
112 return (0);
113 }
114 close(fd);
115
116 if (!clsp->members) {
117 Free (clsp->name);
118 Free (clsp);
119 errno = EBADF;
120 return (0);
121 }
122
123 return (clsp);
124 }
125