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/** BEGIN COPYRIGHT BLOCK
* This Program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation; version 2 of the License.
*
* This Program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* this Program; if not, write to the Free Software Foundation, Inc., 59 Temple
* Place, Suite 330, Boston, MA 02111-1307 USA.
*
* In addition, as a special exception, Red Hat, Inc. gives You the additional
* right to link the code of this Program with code not covered under the GNU
* General Public License ("Non-GPL Code") and to distribute linked combinations
* including the two, subject to the limitations in this paragraph. Non-GPL Code
* permitted under this exception must only link to the code of this Program
* through those well defined interfaces identified in the file named EXCEPTION
* found in the source code files (the "Approved Interfaces"). The files of
* Non-GPL Code may instantiate templates or use macros or inline functions from
* the Approved Interfaces without causing the resulting work to be covered by
* the GNU General Public License. Only Red Hat, Inc. may make changes or
* additions to the list of Approved Interfaces. You must obey the GNU General
* Public License in all respects for all of the Program code and other code used
* in conjunction with the Program except the Non-GPL Code covered by this
* exception. If you modify this file, you may extend this exception to your
* version of the file, but you are not obligated to do so. If you do not wish to
* provide this exception without modification, you must delete this exception
* statement from your version and license this file solely under the GPL without
* exception.
*
*
* Copyright (C) 2001 Sun Microsystems, Inc. Used by permission.
* Copyright (C) 2005 Red Hat, Inc.
* All rights reserved.
* END COPYRIGHT BLOCK **/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "back-ldbm.h"
static void
mk_dbversion_fullpath(struct ldbminfo *li, const char *directory, char *filename)
{
if (li)
{
if (is_fullpath((char *)directory))
{
PR_snprintf(filename, MAXPATHLEN*2, "%s/%s", directory, DBVERSION_FILENAME);
}
else
{
char *home_dir = dblayer_get_home_dir(li, NULL);
/* if relpath, nsslapd-dbhome_directory should be set */
PR_snprintf(filename, MAXPATHLEN*2,"%s/%s/%s", home_dir,directory,DBVERSION_FILENAME);
}
}
else
{
PR_snprintf(filename, MAXPATHLEN*2, "%s/%s", directory, DBVERSION_FILENAME);
}
}
/*
* Function: dbversion_write
*
* Returns: returns 0 on success, -1 on failure
*
* Description: This function writes the DB version file.
*/
int
dbversion_write(struct ldbminfo *li, const char *directory,
const char *dataversion)
{
char filename[ MAXPATHLEN*2 ];
PRFileDesc *prfd;
int rc = 0;
if (!is_fullpath((char *)directory)) {
rc = -1;
return rc;
}
mk_dbversion_fullpath(li, directory, filename);
/* Open the file */
if (( prfd = PR_Open( filename, PR_RDWR | PR_CREATE_FILE | PR_TRUNCATE,
SLAPD_DEFAULT_FILE_MODE )) == NULL )
{
LDAPDebug( LDAP_DEBUG_ANY, "Could not open file \"%s\" for writing "
SLAPI_COMPONENT_NAME_NSPR " %d (%s)\n",
filename, PR_GetError(), slapd_pr_strerror(PR_GetError()) );
rc= -1;
}
else
{
/* Write the file */
PRInt32 len;
char buf[ LDBM_VERSION_MAXBUF ];
/* recognize the difference between an old/new database regarding idl
* (406922) */
if (idl_get_idl_new())
{
if (entryrdn_get_switch()) {
sprintf(buf, "%s/%d.%d/%s/%s\n",
BDB_IMPL, DB_VERSION_MAJOR, DB_VERSION_MINOR,
BDB_BACKEND, BDB_RDNFORMAT);
} else {
sprintf(buf, "%s/%d.%d/%s\n",
BDB_IMPL, DB_VERSION_MAJOR, DB_VERSION_MINOR,
BDB_BACKEND);
}
}
else
{
if (entryrdn_get_switch()) {
sprintf(buf, "%s/%d.%d/%s/%s\n",
BDB_IMPL, DB_VERSION_MAJOR, DB_VERSION_MINOR,
BDB_BACKEND, BDB_RDNFORMAT);
} else {
sprintf(buf, "%s/%d.%d/%s\n",
BDB_IMPL, DB_VERSION_MAJOR, DB_VERSION_MINOR,
BDB_BACKEND);
}
}
len = strlen( buf );
if ( slapi_write_buffer( prfd, buf, len ) != len )
{
LDAPDebug( LDAP_DEBUG_ANY, "Could not write to file \"%s\"\n", filename, 0, 0 );
rc= -1;
}
if(rc==0 && dataversion!=NULL)
{
sprintf( buf, "%s\n", dataversion );
len = strlen( buf );
if ( slapi_write_buffer( prfd, buf, len ) != len )
{
LDAPDebug( LDAP_DEBUG_ANY, "Could not write to file \"%s\"\n", filename, 0, 0 );
rc= -1;
}
}
(void)PR_Close( prfd );
}
return rc;
}
/*
* Function: dbversion_read
*
* Returns: returns 0 on success, -1 on failure
*
* Description: This function reads the DB version file.
*/
int
dbversion_read(struct ldbminfo *li, const char *directory,
char **ldbmversion, char **dataversion)
{
char filename[ MAXPATHLEN*2 ];
PRFileDesc *prfd;
int rc = -1;
char * iter = NULL;
if (!is_fullpath((char *)directory)) {
return rc;
}
if (NULL == ldbmversion) {
return rc;
}
mk_dbversion_fullpath(li, directory, filename);
/* Open the file */
if (( prfd = PR_Open( filename, PR_RDONLY, SLAPD_DEFAULT_FILE_MODE )) ==
NULL )
{
/* File missing... we are probably creating a new database. */
}
else
{
char buf[LDBM_VERSION_MAXBUF];
PRInt32 nr = slapi_read_buffer( prfd, buf,
(PRInt32)LDBM_VERSION_MAXBUF-1 );
if ( nr > 0 && nr != (PRInt32)LDBM_VERSION_MAXBUF-1 )
{
char *t;
buf[nr] = '\0';
t = ldap_utf8strtok_r(buf,"\n", &iter);
if(NULL != t)
{
*ldbmversion = slapi_ch_strdup(t);
t = ldap_utf8strtok_r(NULL,"\n", &iter);
if(NULL != dataversion && t != NULL && t[0] != '\0')
{
*dataversion = slapi_ch_strdup(t);
}
}
}
(void)PR_Close( prfd );
rc= 0;
}
return rc;
}
/*
* Function: dbversion_exists
*
* Returns: 1 for exists, 0 for not.
*
* Description: This function checks if the DB version file exists.
*/
int
dbversion_exists(struct ldbminfo *li, const char *directory)
{
char filename[ MAXPATHLEN*2 ];
PRFileDesc *prfd;
mk_dbversion_fullpath(li, directory, filename);
if (( prfd = PR_Open( filename, PR_RDONLY, SLAPD_DEFAULT_FILE_MODE )) ==
NULL )
{
return 0;
}
(void)PR_Close( prfd );
return 1;
}
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