6c648dd642
This is actually a fully functional build except: * All internal shared libraries are static linked to make sure there is no interference with ports (and to reduce build time). * It does not have the python/perl/etc plugin or API support. * By default, it installs as "svnlite" rather than "svn". * If WITH_SVN added in make.conf, you get "svn". * If WITHOUT_SVNLITE is in make.conf, this is completely disabled. To be absolutely clear, this is not intended for any use other than checking out freebsd source and committing, like we once did with cvs. It should be usable for small scale local repositories that don't need the python/perl plugin architecture.
256 lines
6.3 KiB
C
256 lines
6.3 KiB
C
/* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "apu_config.h"
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#include "apu.h"
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#include "apr_strings.h"
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#if APR_HAVE_STDLIB_H
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#include <stdlib.h> /* for free() */
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#endif
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#if APU_HAVE_GDBM
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#include "apr_dbm_private.h"
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#include <gdbm.h>
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#define APR_DBM_DBMODE_RO GDBM_READER
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#define APR_DBM_DBMODE_RW GDBM_WRITER
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#define APR_DBM_DBMODE_RWCREATE GDBM_WRCREAT
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#define APR_DBM_DBMODE_RWTRUNC GDBM_NEWDB
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/* map a GDBM error to an apr_status_t */
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static apr_status_t g2s(int gerr)
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{
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if (gerr == -1) {
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/* ### need to fix this */
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return APR_EGENERAL;
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}
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return APR_SUCCESS;
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}
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static apr_status_t datum_cleanup(void *dptr)
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{
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if (dptr)
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free(dptr);
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return APR_SUCCESS;
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}
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static apr_status_t set_error(apr_dbm_t *dbm, apr_status_t dbm_said)
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{
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apr_status_t rv = APR_SUCCESS;
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/* ### ignore whatever the DBM said (dbm_said); ask it explicitly */
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if ((dbm->errcode = gdbm_errno) == GDBM_NO_ERROR) {
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dbm->errmsg = NULL;
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}
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else {
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dbm->errmsg = gdbm_strerror(gdbm_errno);
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rv = APR_EGENERAL; /* ### need something better */
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}
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/* captured it. clear it now. */
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gdbm_errno = GDBM_NO_ERROR;
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return rv;
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}
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/* --------------------------------------------------------------------------
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**
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** DEFINE THE VTABLE FUNCTIONS FOR GDBM
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*/
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static apr_status_t vt_gdbm_open(apr_dbm_t **pdb, const char *pathname,
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apr_int32_t mode, apr_fileperms_t perm,
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apr_pool_t *pool)
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{
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GDBM_FILE file;
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int dbmode;
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*pdb = NULL;
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switch (mode) {
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case APR_DBM_READONLY:
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dbmode = APR_DBM_DBMODE_RO;
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break;
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case APR_DBM_READWRITE:
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dbmode = APR_DBM_DBMODE_RW;
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break;
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case APR_DBM_RWCREATE:
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dbmode = APR_DBM_DBMODE_RWCREATE;
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break;
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case APR_DBM_RWTRUNC:
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dbmode = APR_DBM_DBMODE_RWTRUNC;
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break;
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default:
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return APR_EINVAL;
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}
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/* Note: stupid cast to get rid of "const" on the pathname */
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file = gdbm_open((char *) pathname, 0, dbmode, apr_posix_perms2mode(perm),
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NULL);
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if (file == NULL)
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return APR_EGENERAL; /* ### need a better error */
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/* we have an open database... return it */
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*pdb = apr_pcalloc(pool, sizeof(**pdb));
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(*pdb)->pool = pool;
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(*pdb)->type = &apr_dbm_type_gdbm;
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(*pdb)->file = file;
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/* ### register a cleanup to close the DBM? */
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return APR_SUCCESS;
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}
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static void vt_gdbm_close(apr_dbm_t *dbm)
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{
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gdbm_close(dbm->file);
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}
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static apr_status_t vt_gdbm_fetch(apr_dbm_t *dbm, apr_datum_t key,
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apr_datum_t *pvalue)
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{
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datum kd, rd;
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kd.dptr = key.dptr;
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kd.dsize = key.dsize;
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rd = gdbm_fetch(dbm->file, kd);
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pvalue->dptr = rd.dptr;
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pvalue->dsize = rd.dsize;
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if (pvalue->dptr)
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apr_pool_cleanup_register(dbm->pool, pvalue->dptr, datum_cleanup,
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apr_pool_cleanup_null);
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/* store the error info into DBM, and return a status code. Also, note
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that *pvalue should have been cleared on error. */
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return set_error(dbm, APR_SUCCESS);
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}
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static apr_status_t vt_gdbm_store(apr_dbm_t *dbm, apr_datum_t key,
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apr_datum_t value)
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{
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int rc;
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datum kd, vd;
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kd.dptr = key.dptr;
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kd.dsize = key.dsize;
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vd.dptr = value.dptr;
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vd.dsize = value.dsize;
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rc = gdbm_store(dbm->file, kd, vd, GDBM_REPLACE);
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/* store any error info into DBM, and return a status code. */
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return set_error(dbm, g2s(rc));
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}
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static apr_status_t vt_gdbm_del(apr_dbm_t *dbm, apr_datum_t key)
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{
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int rc;
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datum kd;
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kd.dptr = key.dptr;
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kd.dsize = key.dsize;
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rc = gdbm_delete(dbm->file, kd);
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/* store any error info into DBM, and return a status code. */
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return set_error(dbm, g2s(rc));
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}
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static int vt_gdbm_exists(apr_dbm_t *dbm, apr_datum_t key)
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{
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datum kd;
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kd.dptr = key.dptr;
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kd.dsize = key.dsize;
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return gdbm_exists(dbm->file, kd) != 0;
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}
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static apr_status_t vt_gdbm_firstkey(apr_dbm_t *dbm, apr_datum_t *pkey)
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{
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datum rd;
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rd = gdbm_firstkey(dbm->file);
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pkey->dptr = rd.dptr;
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pkey->dsize = rd.dsize;
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if (pkey->dptr)
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apr_pool_cleanup_register(dbm->pool, pkey->dptr, datum_cleanup,
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apr_pool_cleanup_null);
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/* store any error info into DBM, and return a status code. */
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return set_error(dbm, APR_SUCCESS);
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}
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static apr_status_t vt_gdbm_nextkey(apr_dbm_t *dbm, apr_datum_t *pkey)
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{
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datum kd, rd;
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kd.dptr = pkey->dptr;
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kd.dsize = pkey->dsize;
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rd = gdbm_nextkey(dbm->file, kd);
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pkey->dptr = rd.dptr;
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pkey->dsize = rd.dsize;
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if (pkey->dptr)
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apr_pool_cleanup_register(dbm->pool, pkey->dptr, datum_cleanup,
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apr_pool_cleanup_null);
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/* store any error info into DBM, and return a status code. */
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return set_error(dbm, APR_SUCCESS);
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}
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static void vt_gdbm_freedatum(apr_dbm_t *dbm, apr_datum_t data)
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{
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(void) apr_pool_cleanup_run(dbm->pool, data.dptr, datum_cleanup);
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}
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static void vt_gdbm_usednames(apr_pool_t *pool, const char *pathname,
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const char **used1, const char **used2)
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{
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*used1 = apr_pstrdup(pool, pathname);
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*used2 = NULL;
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}
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APU_MODULE_DECLARE_DATA const apr_dbm_type_t apr_dbm_type_gdbm = {
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"gdbm",
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vt_gdbm_open,
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vt_gdbm_close,
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vt_gdbm_fetch,
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vt_gdbm_store,
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vt_gdbm_del,
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vt_gdbm_exists,
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vt_gdbm_firstkey,
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vt_gdbm_nextkey,
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vt_gdbm_freedatum,
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vt_gdbm_usednames
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};
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#endif /* APU_HAVE_GDBM */
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