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 #pragma ident "%Z%%M% %I% %E% SMI"
27
28 #include <stdio.h>
29 #include <string.h>
30 #include <ctype.h>
31 #include <sys/types.h>
32 #include <nss_dbdefs.h>
33 #include <syslog.h>
34 #include <ns.h>
35
36 #ifndef NSS_DBNAM__PRINTERS /* not in nss_dbdefs.h because it's private */
37 #define NSS_DBNAM__PRINTERS "_printers"
38 #endif
39
40 static DEFINE_NSS_DB_ROOT(db_root);
41 static DEFINE_NSS_GETENT(context);
42
43 static int printers_stayopen;
44 static char *private_ns = NULL;
45
46 static void
_nss_initf_printers(p)47 _nss_initf_printers(p)
48 nss_db_params_t *p;
49 {
50 if (private_ns != NULL) {
51 /*
52 * because we need to support a legacy interface that allows
53 * us to select a specific name service, we need to dummy up
54 * the parameters to use a private nsswitch database and set
55 * the * default_config entry to the name service we are
56 * looking into.
57 */
58 p->name = NSS_DBNAM__PRINTERS; /* "_printers" */
59 p->default_config = normalize_ns_name(private_ns);
60 } else {
61 /* regular behaviour */
62 p->name = NSS_DBNAM_PRINTERS; /* "printers" */
63 p->default_config = NSS_DEFCONF_PRINTERS;
64 }
65 syslog(LOG_DEBUG, "database: %s, default: %s",
66 (p->name ? p->name : "NULL"),
67 (p->default_config ? p->default_config : "NULL"));
68 }
69
70 /*
71 * Return values: 0 = success, 1 = parse error, 2 = erange ...
72 * The structure pointer passed in is a structure in the caller's space
73 * wherein the field pointers would be set to areas in the buffer if
74 * need be. instring and buffer should be separate areas.
75 */
76 /* ARGSUSED */
77 static int
str2printer(const char * instr,int lenstr,void * ent,char * buffer,int buflen)78 str2printer(const char *instr, int lenstr, void *ent, char *buffer, int buflen)
79 {
80 if (lenstr + 1 > buflen)
81 return (NSS_STR_PARSE_ERANGE);
82
83 /* skip entries that begin with '#' */
84 if (instr[0] == '#')
85 return (NSS_STR_PARSE_PARSE);
86
87 /*
88 * We copy the input string into the output buffer
89 */
90 (void) memcpy(buffer, instr, lenstr);
91 buffer[lenstr] = '\0';
92
93 return (NSS_STR_PARSE_SUCCESS);
94 }
95
96
97 int
setprinterentry(int stayopen,char * ns)98 setprinterentry(int stayopen, char *ns)
99 {
100 printers_stayopen |= stayopen;
101 private_ns = ns;
102 nss_setent(&db_root, _nss_initf_printers, &context);
103 private_ns = NULL;
104 return (0);
105 }
106
107
108 int
endprinterentry()109 endprinterentry()
110 {
111 printers_stayopen = 0;
112 nss_endent(&db_root, _nss_initf_printers, &context);
113 nss_delete(&db_root);
114 private_ns = NULL;
115 return (0);
116 }
117
118
119 /* ARGSUSED2 */
120 int
getprinterentry(char * linebuf,int linelen,char * ns)121 getprinterentry(char *linebuf, int linelen, char *ns)
122 {
123 nss_XbyY_args_t arg;
124 nss_status_t res;
125
126 private_ns = ns;
127 NSS_XbyY_INIT(&arg, linebuf, linebuf, linelen, str2printer);
128 res = nss_getent(&db_root, _nss_initf_printers, &context, &arg);
129 (void) NSS_XbyY_FINI(&arg);
130 private_ns = NULL;
131
132 return (arg.status = res);
133 }
134
135
136 int
getprinterbyname(char * name,char * linebuf,int linelen,char * ns)137 getprinterbyname(char *name, char *linebuf, int linelen, char *ns)
138 {
139 nss_XbyY_args_t arg;
140 nss_status_t res;
141
142 private_ns = ns;
143 NSS_XbyY_INIT(&arg, linebuf, linebuf, linelen, str2printer);
144 arg.key.name = name;
145 res = nss_search(&db_root, _nss_initf_printers,
146 NSS_DBOP_PRINTERS_BYNAME, &arg);
147 (void) NSS_XbyY_FINI(&arg);
148 private_ns = NULL;
149
150 return (arg.status = res);
151 }
152