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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libc/db/hash/ndbm.c	Lines:	0	61	0.0 %
Date:	2017-11-07	Branches:	0	14	0.0 %


/*	$OpenBSD: ndbm.c,v 1.26 2016/05/07 21:58:06 tedu Exp $	*/

/*-
 * Copyright (c) 1990, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Margo Seltzer.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <stdio.h>
#include <string.h>

#include <ndbm.h>
#include "hash.h"

/*
 *
 * This package provides dbm and ndbm compatible interfaces to DB.
 * First are the DBM routines, which call the NDBM routines, and
 * the NDBM routines, which call the DB routines.
 */
static DBM *__cur_db;

static DBM *_dbm_open(const char *, const char *, int, mode_t);

/*
 * Returns:
 * 	*DBM on success
 *	 NULL on failure
 */
static DBM *
_dbm_open(file, suff, flags, mode)
	const char *file;
	const char *suff;
	int flags;
	mode_t mode;
{
	HASHINFO info;
	char path[PATH_MAX];
	int len;

	len = snprintf(path, sizeof path, "%s%s", file, suff);
	if (len < 0 || len >= sizeof path) {
		errno = ENAMETOOLONG;
		return (NULL);
	}
	/* O_WRONLY not supported by db(3) but traditional ndbm allowed it. */
	if ((flags & O_ACCMODE) == O_WRONLY) {
		flags &= ~O_WRONLY;
		flags |= O_RDWR;
	}
	info.bsize = 4096;
	info.ffactor = 40;
	info.nelem = 1;
	info.cachesize = 0;
	info.hash = NULL;
	info.lorder = 0;
	return ((DBM *)__hash_open(path, flags, mode, &info, 0));
}

/*
 * Returns:
 * 	*DBM on success
 *	 NULL on failure
 */
DBM *
dbm_open(file, flags, mode)
	const char *file;
	int flags;
	mode_t mode;
{

	return(_dbm_open(file, DBM_SUFFIX, flags, mode));
}

/*
 * Returns:
 *	Nothing.
 */
void
dbm_close(db)
	DBM *db;
{

	(void)(db->close)(db);
}
DEF_WEAK(dbm_close);

/*
 * Returns:
 *	DATUM on success
 *	NULL on failure
 */
datum
dbm_fetch(db, key)
	DBM *db;
	datum key;
{
	datum retdata;
	int status;
	DBT dbtkey, dbtretdata;

	dbtkey.data = key.dptr;
	dbtkey.size = key.dsize;
	status = (db->get)(db, &dbtkey, &dbtretdata, 0);
	if (status) {
		dbtretdata.data = NULL;
		dbtretdata.size = 0;
	}
	retdata.dptr = dbtretdata.data;
	retdata.dsize = dbtretdata.size;
	return (retdata);
}
DEF_WEAK(dbm_fetch);

/*
 * Returns:
 *	DATUM on success
 *	NULL on failure
 */
datum
dbm_firstkey(db)
	DBM *db;
{
	int status;
	datum retkey;
	DBT dbtretkey, dbtretdata;

	status = (db->seq)(db, &dbtretkey, &dbtretdata, R_FIRST);
	if (status)
		dbtretkey.data = NULL;
	retkey.dptr = dbtretkey.data;
	retkey.dsize = dbtretkey.size;
	return (retkey);
}
DEF_WEAK(dbm_firstkey);

/*
 * Returns:
 *	DATUM on success
 *	NULL on failure
 */
datum
dbm_nextkey(db)
	DBM *db;
{
	int status;
	datum retkey;
	DBT dbtretkey, dbtretdata;

	status = (db->seq)(db, &dbtretkey, &dbtretdata, R_NEXT);
	if (status)
		dbtretkey.data = NULL;
	retkey.dptr = dbtretkey.data;
	retkey.dsize = dbtretkey.size;
	return (retkey);
}
DEF_WEAK(dbm_nextkey);

/*
 * Returns:
 *	 0 on success
 *	<0 on failure
 */
int
dbm_delete(db, key)
	DBM *db;
	datum key;
{
	int status;
	DBT dbtkey;

	dbtkey.data = key.dptr;
	dbtkey.size = key.dsize;
	status = (db->del)(db, &dbtkey, 0);
	if (status)
		return (-1);
	else
		return (0);
}
DEF_WEAK(dbm_delete);

/*
 * Returns:
 *	 0 on success
 *	<0 on failure
 *	 1 if DBM_INSERT and entry exists
 */
int
dbm_store(db, key, data, flags)
	DBM *db;
	datum key, data;
	int flags;
{
	DBT dbtkey, dbtdata;

	dbtkey.data = key.dptr;
	dbtkey.size = key.dsize;
	dbtdata.data = data.dptr;
	dbtdata.size = data.dsize;
	return ((db->put)(db, &dbtkey, &dbtdata,
	    (flags == DBM_INSERT) ? R_NOOVERWRITE : 0));
}
DEF_WEAK(dbm_store);

int
dbm_error(db)
	DBM *db;
{
	HTAB *hp;

	hp = (HTAB *)db->internal;
	return (hp->err);
}

int
dbm_clearerr(db)
	DBM *db;
{
	HTAB *hp;

	hp = (HTAB *)db->internal;
	hp->err = 0;
	return (0);
}

int
dbm_dirfno(db)
	DBM *db;
{

	return(((HTAB *)db->internal)->fp);
}

int
dbm_rdonly(dbp)
	DBM *dbp;
{
	HTAB *hashp = (HTAB *)dbp->internal;

	/* Could use DBM_RDONLY instead if we wanted... */
	return ((hashp->flags & O_ACCMODE) == O_RDONLY);
}
DEF_WEAK(dbm_rdonly);


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: ndbm.c,v 1.26 2016/05/07 21:58:06 tedu Exp $ */
2
3			/*-
4			* Copyright (c) 1990, 1993
5			* The Regents of the University of California. All rights reserved.
6			*
7			* This code is derived from software contributed to Berkeley by
8			* Margo Seltzer.
9			*
10			* Redistribution and use in source and binary forms, with or without
11			* modification, are permitted provided that the following conditions
12			* are met:
13			* 1. Redistributions of source code must retain the above copyright
14			* notice, this list of conditions and the following disclaimer.
15			* 2. Redistributions in binary form must reproduce the above copyright
16			* notice, this list of conditions and the following disclaimer in the
17			* documentation and/or other materials provided with the distribution.
18			* 3. Neither the name of the University nor the names of its contributors
19			* may be used to endorse or promote products derived from this software
20			* without specific prior written permission.
21			*
22			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32			* SUCH DAMAGE.
33			*/
34
35			#include <errno.h>
36			#include <fcntl.h>
37			#include <limits.h>
38			#include <stdio.h>
39			#include <string.h>
40
41			#include <ndbm.h>
42			#include "hash.h"
43
44			/*
45			*
46			* This package provides dbm and ndbm compatible interfaces to DB.
47			* First are the DBM routines, which call the NDBM routines, and
48			* the NDBM routines, which call the DB routines.
49			*/
50			static DBM *__cur_db;
51
52			static DBM _dbm_open(const char , const char *, int, mode_t);
53
54			/*
55			* Returns:
56			* *DBM on success
57			* NULL on failure
58			*/
59			static DBM *
60			_dbm_open(file, suff, flags, mode)
61			const char *file;
62			const char *suff;
63			int flags;
64			mode_t mode;
65			{
66			HASHINFO info;
67			char path[PATH_MAX];
68			int len;
69
70			len = snprintf(path, sizeof path, "%s%s", file, suff);
71			if (len < 0 \|\| len >= sizeof path) {
72			errno = ENAMETOOLONG;
73			return (NULL);
74			}
75			/* O_WRONLY not supported by db(3) but traditional ndbm allowed it. */
76			if ((flags & O_ACCMODE) == O_WRONLY) {
77			flags &= ~O_WRONLY;
78			flags \|= O_RDWR;
79			}
80			info.bsize = 4096;
81			info.ffactor = 40;
82			info.nelem = 1;
83			info.cachesize = 0;
84			info.hash = NULL;
85			info.lorder = 0;
86			return ((DBM *)__hash_open(path, flags, mode, &info, 0));
87			}
88
89			/*
90			* Returns:
91			* *DBM on success
92			* NULL on failure
93			*/
94			DBM *
95			dbm_open(file, flags, mode)
96			const char *file;
97			int flags;
98			mode_t mode;
99			{
100
101			return(_dbm_open(file, DBM_SUFFIX, flags, mode));
102			}
103
104			/*
105			* Returns:
106			* Nothing.
107			*/
108			void
109			dbm_close(db)
110			DBM *db;
111			{
112
113			(void)(db->close)(db);
114			}
115			DEF_WEAK(dbm_close);
116
117			/*
118			* Returns:
119			* DATUM on success
120			* NULL on failure
121			*/
122			datum
123			dbm_fetch(db, key)
124			DBM *db;
125			datum key;
126			{
127			datum retdata;
128			int status;
129			DBT dbtkey, dbtretdata;
130
131			dbtkey.data = key.dptr;
132			dbtkey.size = key.dsize;
133			status = (db->get)(db, &dbtkey, &dbtretdata, 0);
134			if (status) {
135			dbtretdata.data = NULL;
136			dbtretdata.size = 0;
137			}
138			retdata.dptr = dbtretdata.data;
139			retdata.dsize = dbtretdata.size;
140			return (retdata);
141			}
142			DEF_WEAK(dbm_fetch);
143
144			/*
145			* Returns:
146			* DATUM on success
147			* NULL on failure
148			*/
149			datum
150			dbm_firstkey(db)
151			DBM *db;
152			{
153			int status;
154			datum retkey;
155			DBT dbtretkey, dbtretdata;
156
157			status = (db->seq)(db, &dbtretkey, &dbtretdata, R_FIRST);
158			if (status)
159			dbtretkey.data = NULL;
160			retkey.dptr = dbtretkey.data;
161			retkey.dsize = dbtretkey.size;
162			return (retkey);
163			}
164			DEF_WEAK(dbm_firstkey);
165
166			/*
167			* Returns:
168			* DATUM on success
169			* NULL on failure
170			*/
171			datum
172			dbm_nextkey(db)
173			DBM *db;
174			{
175			int status;
176			datum retkey;
177			DBT dbtretkey, dbtretdata;
178
179			status = (db->seq)(db, &dbtretkey, &dbtretdata, R_NEXT);
180			if (status)
181			dbtretkey.data = NULL;
182			retkey.dptr = dbtretkey.data;
183			retkey.dsize = dbtretkey.size;
184			return (retkey);
185			}
186			DEF_WEAK(dbm_nextkey);
187
188			/*
189			* Returns:
190			* 0 on success
191			* <0 on failure
192			*/
193			int
194			dbm_delete(db, key)
195			DBM *db;
196			datum key;
197			{
198			int status;
199			DBT dbtkey;
200
201			dbtkey.data = key.dptr;
202			dbtkey.size = key.dsize;
203			status = (db->del)(db, &dbtkey, 0);
204			if (status)
205			return (-1);
206			else
207			return (0);
208			}
209			DEF_WEAK(dbm_delete);
210
211			/*
212			* Returns:
213			* 0 on success
214			* <0 on failure
215			* 1 if DBM_INSERT and entry exists
216			*/
217			int
218			dbm_store(db, key, data, flags)
219			DBM *db;
220			datum key, data;
221			int flags;
222			{
223			DBT dbtkey, dbtdata;
224
225			dbtkey.data = key.dptr;
226			dbtkey.size = key.dsize;
227			dbtdata.data = data.dptr;
228			dbtdata.size = data.dsize;
229			return ((db->put)(db, &dbtkey, &dbtdata,
230			(flags == DBM_INSERT) ? R_NOOVERWRITE : 0));
231			}
232			DEF_WEAK(dbm_store);
233
234			int
235			dbm_error(db)
236			DBM *db;
237			{
238			HTAB *hp;
239
240			hp = (HTAB *)db->internal;
241			return (hp->err);
242			}
243
244			int
245			dbm_clearerr(db)
246			DBM *db;
247			{
248			HTAB *hp;
249
250			hp = (HTAB *)db->internal;
251			hp->err = 0;
252			return (0);
253			}
254
255			int
256			dbm_dirfno(db)
257			DBM *db;
258			{
259
260			return(((HTAB *)db->internal)->fp);
261			}
262
263			int
264			dbm_rdonly(dbp)
265			DBM *dbp;
266			{
267			HTAB hashp = (HTAB )dbp->internal;
268
269			/* Could use DBM_RDONLY instead if we wanted... */
270			return ((hashp->flags & O_ACCMODE) == O_RDONLY);
271			}
272			DEF_WEAK(dbm_rdonly);