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 /* EMACS_MODES: !fill, lnumb, !overwrite, !nodelete, !picture */
31
32 #include "stdio.h"
33 #include "string.h"
34 #include "errno.h"
35 #include "sys/types.h"
36 #include <syslog.h>
37
38 #include "lp.h"
39 #include "class.h"
40
41 /**
42 ** getclass() - READ CLASS FROM TO DISK
43 **/
44
45 CLASS *
getclass(char * name)46 getclass(char *name)
47 {
48 static long lastdir = -1;
49
50 CLASS *clsp;
51
52 char *file,
53 buf[BUFSIZ];
54
55 int fd;
56
57 syslog(LOG_DEBUG, "getclass(%s)", name ? name : "");
58
59 if (!name || !*name) {
60 errno = EINVAL;
61 return (0);
62 }
63
64 /*
65 * Getting ``all''? If so, jump into the directory
66 * wherever we left off.
67 */
68 if (STREQU(NAME_ALL, name)) {
69 if (!(name = next_file(Lp_A_Classes, &lastdir)))
70 return (0);
71 } else
72 lastdir = -1;
73
74 /*
75 * Get the class list.
76 */
77
78 if (!(file = getclassfile(name)))
79 return (0);
80
81 if ((fd = open_locked(file, "r", 0)) < 0) {
82 Free (file);
83 return (0);
84 }
85 Free (file);
86
87 clsp = (CLASS *)calloc(sizeof (*clsp), 1);
88
89 if (!(clsp->name = Strdup(name))) {
90 Free (clsp);
91 close(fd);
92 errno = ENOMEM;
93 return (0);
94 }
95
96 clsp->members = 0;
97 errno = 0;
98 while (fdgets(buf, BUFSIZ, fd)) {
99 buf[strlen(buf) - 1] = 0;
100 addlist (&clsp->members, buf);
101 }
102 if (errno != 0) {
103 int save_errno = errno;
104
105 freelist (clsp->members);
106 Free (clsp->name);
107 Free (clsp);
108 close(fd);
109 errno = save_errno;
110 return (0);
111 }
112 close(fd);
113
114 if (!clsp->members) {
115 Free (clsp->name);
116 Free (clsp);
117 errno = EBADF;
118 return (0);
119 }
120
121 return (clsp);
122 }
123