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/*
23 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#pragma ident	"%Z%%M%	%I%	%E% SMI"
28
29/*
30 * DESCRIPTION: Contains helper functions for N2L
31 */
32
33/*
34 * Includes. WE WANT TO USE REAL DBM FUNCTIONS SO DO NOT INCLUDE SHIM_HOOKS.H.
35 */
36#include <unistd.h>
37#include <syslog.h>
38#include <ndbm.h>
39#include <sys/systeminfo.h>
40#include <errno.h>
41#include <strings.h>
42#include "ypsym.h"
43#include "ypdefs.h"
44#include "shim.h"
45#include "yptol.h"
46#include "stdio.h"
47#include "../ldap_util.h"
48
49/* Enable standard YP code features defined in ypdefs.h */
50USE_YP_PREFIX
51USE_YP_MASTER_NAME
52USE_YP_LAST_MODIFIED
53USE_YP_INPUT_FILE
54USE_YP_OUTPUT_NAME
55USE_YP_DOMAIN_NAME
56USE_YP_SECURE
57USE_YP_INTERDOMAIN
58USE_DBM
59
60/*
61 * FUNCTION :	alloc_temp_names()
62 *
63 * DESCRIPTION:	Creates the set of temporary names for update files. It is
64 *		the caller responsibility to free these.
65 *
66 * GIVEN :	Name of map (fully qualified)
67 *
68 * RETURNS :	SUCCESS with all names allocated.
69 *		FAILURE with no names allocated.
70 */
71suc_code
72alloc_temp_names(char *name, char **temp_entries, char **temp_ttl)
73{
74	char *myself = "alloc_temp_names";
75
76	*temp_entries = (char *)am(myself, strlen(name) +
77						strlen(TEMP_POSTFIX) + 1);
78	if (NULL == *temp_entries) {
79		return (FAILURE);
80	}
81
82	*temp_ttl = (char *)am(myself, strlen(TEMP_POSTFIX) + strlen(name) +
83						strlen(TTL_POSTFIX) + 1);
84	if (NULL == *temp_ttl) {
85		sfree(*temp_entries);
86		return (FAILURE);
87	}
88
89	strcpy(*temp_entries, name);
90	strcat(*temp_entries, TEMP_POSTFIX);
91
92	strcpy(*temp_ttl, name);
93	strcat(*temp_ttl, TTL_POSTFIX);
94	strcat(*temp_ttl, TEMP_POSTFIX);
95
96	return (SUCCESS);
97}
98
99/*
100 * FUNCTION :	addpair()
101 *
102 * DESCRIPTION:	Adds a single string entry to a dbm database. This is a copy of
103 *		a function from makedbm but is useful enough to be put into
104 *		shared code.
105 *
106 * GIVEN:	Database handle
107 *		Key
108 *		Value
109 *
110 * RETURNS :	SUCCESS = Value written
111 *		FAILURE = Value not written.
112 */
113suc_code
114addpair(DBM *fdb, char *str1, char *str2)
115{
116	datum key;
117	datum content;
118
119	key.dptr = str1;
120	key.dsize = strlen(str1);
121	content.dptr  = str2;
122	content.dsize = strlen(str2);
123	errno = 0;
124	if (dbm_store(fdb, key, content, DBM_REPLACE) != 0) {
125		logmsg(MSG_NOTIMECHECK, LOG_ERR, "Problem storing %.*s %.*s "
126					"(errno=%d)",
127					key.dptr, content.dptr, errno);
128		return (FAILURE);
129	}
130	return (SUCCESS);
131}
132
133/*
134 * FUNCTION :	dump_datum()
135 *
136 * DESCRIPTION:	Prints out a datum as a text string with no line feed.
137 */
138void
139dump_datum(datum *dat)
140{
141	int	i;
142
143	if (NULL == dat) {
144		printf("NULL datum");
145		return;
146	}
147
148	if (NULL == dat->dptr) {
149		printf("NULL dptr");
150		return;
151	}
152	for (i = 0; i < dat->dsize; i++)
153		putchar(dat->dptr[i]);
154}
155
156/*
157 * FUNCTION :	update_timestamp()
158 *
159 * DESCRIPTION:	Adds, or updates, a maps last modified timestamp.
160 *
161 * GIVEN :	Pointer to an open DBM file.
162 *
163 * RETURNS :	SUCCESS = Entry created
164 *		FAILURE = Entry not created
165 */
166suc_code
167update_timestamp(DBM *db)
168{
169	char time_string[MAX_ASCII_ORDER_NUMBER_LENGTH];
170	struct timeval	now;
171
172	if (0 != gettimeofday(&now, NULL)) {
173		logmsg(MSG_NOTIMECHECK, LOG_ERR, "Could not get time of day");
174		return (FAILURE);
175	}
176	sprintf(time_string, "%010ld", (long)now.tv_sec);
177	if (SUCCESS != addpair(db, yp_last_modified, time_string))
178		return (FAILURE);
179
180	return (SUCCESS);
181}
182