diff options
Diffstat (limited to 'usr.sbin/sa/db.c')
| -rw-r--r-- | usr.sbin/sa/db.c | 207 |
1 files changed, 0 insertions, 207 deletions
diff --git a/usr.sbin/sa/db.c b/usr.sbin/sa/db.c deleted file mode 100644 index c6b25f3..0000000 --- a/usr.sbin/sa/db.c +++ /dev/null @@ -1,207 +0,0 @@ -/*- - * Copyright (c) 2007 Diomidis Spinellis - * All rights reserved. - * - * 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. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/types.h> -#include <sys/acct.h> - -#include <ctype.h> -#include <err.h> -#include <errno.h> -#include <db.h> -#include <fcntl.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <limits.h> - -#include "extern.h" - -/* Key used to store the version of the database data elements. */ -#define VERSION_KEY "\0VERSION" - -/* - * Create the in-memory database, *mdb. - * If iflag is not set, fill-in mdb with the records of the disk-based - * database dbname. - * Upgrade old-version records by calling v1_to_v2. - * Return 0 if OK, -1 on error. - */ -int -db_copy_in(DB **mdb, const char *dbname, const char *uname, BTREEINFO *bti, - int (*v1_to_v2)(DBT *key, DBT *data)) -{ - DBT key, data; - DB *ddb; - int error, rv, version; - - if ((*mdb = dbopen(NULL, O_RDWR, 0, DB_BTREE, bti)) == NULL) - return (-1); - - if (iflag) - return (0); - - if ((ddb = dbopen(dbname, O_RDONLY, 0, DB_BTREE, bti)) == NULL) { - if (errno == ENOENT) - return (0); - warn("retrieving %s summary", uname); - db_destroy(*mdb, uname); - return (-1); - } - - error = 0; - - /* Obtain/set version. */ - version = 1; - key.data = &VERSION_KEY; - key.size = sizeof(VERSION_KEY); - - rv = DB_GET(ddb, &key, &data, 0); - if (rv < 0) { - warn("get version key from %s stats", uname); - error = -1; - goto closeout; - } else if (rv == 0) { /* It's there; verify version. */ - if (data.size != sizeof(version)) { - warnx("invalid version size %zd in %s", - data.size, uname); - error = -1; - goto closeout; - } - memcpy(&version, data.data, data.size); - if (version != 2) { - warnx("unsupported version %d in %s", - version, uname); - error = -1; - goto closeout; - } - } - - for (rv = DB_SEQ(ddb, &key, &data, R_FIRST); rv == 0; - rv = DB_SEQ(ddb, &key, &data, R_NEXT)) { - - /* See if this is a version record. */ - if (key.size == sizeof(VERSION_KEY) && - memcmp(key.data, VERSION_KEY, sizeof(VERSION_KEY)) == 0) - continue; - - /* Convert record from v1, if needed. */ - if (version == 1 && v1_to_v2(&key, &data) < 0) { - warn("converting %s stats", uname); - error = -1; - goto closeout; - } - - /* Copy record to the in-memory database. */ - if ((rv = DB_PUT(*mdb, &key, &data, 0)) < 0) { - warn("initializing %s stats", uname); - error = -1; - goto closeout; - } - } - if (rv < 0) { - warn("retrieving %s summary", uname); - error = -1; - } - -closeout: - if (DB_CLOSE(ddb) < 0) { - warn("closing %s summary", uname); - error = -1; - } - - if (error) - db_destroy(*mdb, uname); - return (error); -} - -/* - * Save the in-memory database mdb to the disk database dbname. - * Return 0 if OK, -1 on error. - */ -int -db_copy_out(DB *mdb, const char *dbname, const char *uname, BTREEINFO *bti) -{ - DB *ddb; - DBT key, data; - int error, rv, version; - - if ((ddb = dbopen(dbname, O_RDWR|O_CREAT|O_TRUNC, 0644, - DB_BTREE, bti)) == NULL) { - warn("creating %s summary", uname); - return (-1); - } - - error = 0; - - for (rv = DB_SEQ(mdb, &key, &data, R_FIRST); - rv == 0; rv = DB_SEQ(mdb, &key, &data, R_NEXT)) { - if ((rv = DB_PUT(ddb, &key, &data, 0)) < 0) { - warn("saving %s summary", uname); - error = -1; - goto out; - } - } - if (rv < 0) { - warn("retrieving %s stats", uname); - error = -1; - } - -out: - /* Add a version record. */ - key.data = &VERSION_KEY; - key.size = sizeof(VERSION_KEY); - version = 2; - data.data = &version; - data.size = sizeof(version); - if ((rv = DB_PUT(ddb, &key, &data, 0)) < 0) { - warn("add version record to %s stats", uname); - error = -1; - } else if (rv == 1) { - warnx("duplicate version record in %s stats", uname); - error = -1; - } - - if (DB_SYNC(ddb, 0) < 0) { - warn("syncing %s summary", uname); - error = -1; - } - if (DB_CLOSE(ddb) < 0) { - warn("closing %s summary", uname); - error = -1; - } - return error; -} - -void -db_destroy(DB *db, const char *uname) -{ - if (DB_CLOSE(db) < 0) - warn("destroying %s stats", uname); -} |
