dba_ndbm.c

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/*
   +----------------------------------------------------------------------+
   | Copyright (c) The PHP Group                                          |
   +----------------------------------------------------------------------+
   | This source file is subject to version 3.01 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
   | available through the world-wide-web at the following url:           |
   | https://www.php.net/license/3_01.txt                                 |
   | If you did not receive a copy of the PHP license and are unable to   |
   | obtain it through the world-wide-web, please send a note to          |
   | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
   | Author: Sascha Schumann <sascha@schumann.cx>                         |
   +----------------------------------------------------------------------+
 */
 
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
 
#include "php.h"
 
#ifdef DBA_NDBM
#include "php_ndbm.h"
 
#include <fcntl.h>
#ifdef NDBM_INCLUDE_FILE
#include NDBM_INCLUDE_FILE
#endif
 
DBA_OPEN_FUNC(ndbm)
{
    DBM *dbf;
    int gmode = 0;
    int filemode = info->file_permission;
    dba_info *pinfo = (dba_info *) info;
 
    switch(info->mode) {
        case DBA_READER:
            gmode = O_RDONLY;
            break;
        case DBA_WRITER:
            gmode = O_RDWR;
            break;
        case DBA_CREAT:
            gmode = O_RDWR | O_CREAT;
            break;
        case DBA_TRUNC:
            gmode = O_RDWR | O_CREAT | O_TRUNC;
            break;
        default:
            return FAILURE; /* not possible */
    }
 
    dbf = dbm_open(ZSTR_VAL(info->path), gmode, filemode);
 
    pinfo->dbf = dbf;
    return SUCCESS;
}
 
DBA_CLOSE_FUNC(ndbm)
{
    dbm_close(info->dbf);
}
 
DBA_FETCH_FUNC(ndbm)
{
    datum gval;
    datum gkey;
 
    gkey.dptr = ZSTR_VAL(key);
    gkey.dsize = ZSTR_LEN(key);
    gval = dbm_fetch(info->dbf, gkey);
    if (gval.dptr) {
        return zend_string_init(gval.dptr, gval.dsize, /* persistent */ false);
    }
    return NULL;
}
 
DBA_UPDATE_FUNC(ndbm)
{
    datum gval;
    datum gkey;
 
    gkey.dptr = ZSTR_VAL(key);
    gkey.dsize = ZSTR_LEN(key);
    gval.dptr = ZSTR_VAL(val);
    gval.dsize = ZSTR_LEN(val);
 
    if(!dbm_store(info->dbf, gkey, gval, mode == 1 ? DBM_INSERT : DBM_REPLACE))
        return SUCCESS;
    return FAILURE;
}
 
DBA_EXISTS_FUNC(ndbm)
{
    datum gval;
    datum gkey;
 
    gkey.dptr = ZSTR_VAL(key);
    gkey.dsize = ZSTR_LEN(key);
    gval = dbm_fetch(info->dbf, gkey);
    if (gval.dptr) {
        return SUCCESS;
    }
    return FAILURE;
}
 
DBA_DELETE_FUNC(ndbm)
{
    datum gkey;
 
    gkey.dptr = ZSTR_VAL(key);
    gkey.dsize = ZSTR_LEN(key);
    return(dbm_delete(info->dbf, gkey) == -1 ? FAILURE : SUCCESS);
}
 
DBA_FIRSTKEY_FUNC(ndbm)
{
    datum gkey;
 
    gkey = dbm_firstkey(info->dbf);
    if (gkey.dptr) {
        return zend_string_init(gkey.dptr, gkey.dsize, /* persistent */ false);
    }
    return NULL;
}
 
DBA_NEXTKEY_FUNC(ndbm)
{
    datum gkey;
 
    gkey = dbm_nextkey(info->dbf);
    if (gkey.dptr) {
        return zend_string_init(gkey.dptr, gkey.dsize, /* persistent */ false);
    }
    return NULL;
}
 
DBA_OPTIMIZE_FUNC(ndbm)
{
    return SUCCESS;
}
 
DBA_SYNC_FUNC(ndbm)
{
    return SUCCESS;
}
 
DBA_INFO_FUNC(ndbm)
{
    return estrdup("NDBM");
}
 
#endif