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 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 #include <stdio.h>
27 #include <string.h>
28 #include <ctype.h>
29 #include <sys/types.h>
30 #include <nss_dbdefs.h>
31 #include <syslog.h>
32 #include <ns.h>
33
34 #ifndef NSS_DBNAM__PRINTERS /* not in nss_dbdefs.h because it's private */
35 #define NSS_DBNAM__PRINTERS "_printers"
36 #endif
37
38 static DEFINE_NSS_DB_ROOT(db_root);
39 static DEFINE_NSS_GETENT(context);
40
41 static int printers_stayopen;
42 static char *private_ns = NULL;
43
44 static void
_nss_initf_printers(p)45 _nss_initf_printers(p)
46 nss_db_params_t *p;
47 {
48 if (private_ns != NULL) {
49 /*
50 * because we need to support a legacy interface that allows
51 * us to select a specific name service, we need to dummy up
52 * the parameters to use a private nsswitch database and set
53 * the * default_config entry to the name service we are
54 * looking into.
55 */
56 p->name = NSS_DBNAM__PRINTERS; /* "_printers" */
57 p->default_config = normalize_ns_name(private_ns);
58 } else {
59 /* regular behaviour */
60 p->name = NSS_DBNAM_PRINTERS; /* "printers" */
61 p->default_config = NSS_DEFCONF_PRINTERS;
62 }
63 syslog(LOG_DEBUG, "database: %s, default: %s",
64 (p->name ? p->name : "NULL"),
65 (p->default_config ? p->default_config : "NULL"));
66 }
67
68 /*
69 * Return values: 0 = success, 1 = parse error, 2 = erange ...
70 * The structure pointer passed in is a structure in the caller's space
71 * wherein the field pointers would be set to areas in the buffer if
72 * need be. instring and buffer should be separate areas.
73 */
74 /* ARGSUSED */
75 static int
str2printer(const char * instr,int lenstr,void * ent,char * buffer,int buflen)76 str2printer(const char *instr, int lenstr, void *ent, char *buffer, int buflen)
77 {
78 if (lenstr + 1 > buflen)
79 return (NSS_STR_PARSE_ERANGE);
80
81 /* skip entries that begin with '#' */
82 if (instr[0] == '#')
83 return (NSS_STR_PARSE_PARSE);
84
85 /*
86 * We copy the input string into the output buffer
87 */
88 (void) memcpy(buffer, instr, lenstr);
89 buffer[lenstr] = '\0';
90
91 return (NSS_STR_PARSE_SUCCESS);
92 }
93
94
95 int
setprinterentry(int stayopen,char * ns)96 setprinterentry(int stayopen, char *ns)
97 {
98 printers_stayopen |= stayopen;
99 private_ns = ns;
100 nss_setent(&db_root, _nss_initf_printers, &context);
101 private_ns = NULL;
102 return (0);
103 }
104
105
106 int
endprinterentry()107 endprinterentry()
108 {
109 printers_stayopen = 0;
110 nss_endent(&db_root, _nss_initf_printers, &context);
111 nss_delete(&db_root);
112 private_ns = NULL;
113 return (0);
114 }
115
116
117 /* ARGSUSED2 */
118 int
getprinterentry(char * linebuf,int linelen,char * ns)119 getprinterentry(char *linebuf, int linelen, char *ns)
120 {
121 nss_XbyY_args_t arg;
122 nss_status_t res;
123
124 private_ns = ns;
125 NSS_XbyY_INIT(&arg, linebuf, linebuf, linelen, str2printer);
126 res = nss_getent(&db_root, _nss_initf_printers, &context, &arg);
127 (void) NSS_XbyY_FINI(&arg);
128 private_ns = NULL;
129
130 return (arg.status = res);
131 }
132
133
134 int
getprinterbyname(char * name,char * linebuf,int linelen,char * ns)135 getprinterbyname(char *name, char *linebuf, int linelen, char *ns)
136 {
137 nss_XbyY_args_t arg;
138 nss_status_t res;
139
140 private_ns = ns;
141 NSS_XbyY_INIT(&arg, linebuf, linebuf, linelen, str2printer);
142 arg.key.name = name;
143 res = nss_search(&db_root, _nss_initf_printers,
144 NSS_DBOP_PRINTERS_BYNAME, &arg);
145 (void) NSS_XbyY_FINI(&arg);
146 private_ns = NULL;
147
148 return (arg.status = res);
149 }
150