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|
/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2017 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: |
| http://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> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#if DBA_DBM
#include "php_dbm.h"
#ifdef DBM_INCLUDE_FILE
#include DBM_INCLUDE_FILE
#endif
#if DBA_GDBM
#include "php_gdbm.h"
#endif
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#define DBM_DATA dba_dbm_data *dba = info->dbf
#define DBM_GKEY datum gkey; gkey.dptr = (char *) key; gkey.dsize = keylen
#define TRUNC_IT(extension, mode) \
snprintf(buf, MAXPATHLEN, "%s" extension, info->path); \
buf[MAXPATHLEN-1] = '\0'; \
if((fd = VCWD_OPEN_MODE(buf, O_CREAT | mode | O_WRONLY, filemode)) == -1) \
return FAILURE; \
close(fd);
typedef struct {
datum nextkey;
} dba_dbm_data;
DBA_OPEN_FUNC(dbm)
{
int fd;
int filemode = 0644;
if(info->argc > 0) {
convert_to_long_ex(&info->argv[0]);
filemode = Z_LVAL(info->argv[0]);
}
if(info->mode == DBA_TRUNC) {
char buf[MAXPATHLEN];
/* dbm/ndbm original */
TRUNC_IT(".pag", O_TRUNC);
TRUNC_IT(".dir", O_TRUNC);
}
if(info->mode == DBA_CREAT) {
char buf[MAXPATHLEN];
TRUNC_IT(".pag", 0);
TRUNC_IT(".dir", 0);
}
if(dbminit((char *) info->path) == -1) {
return FAILURE;
}
info->dbf = pemalloc(sizeof(dba_dbm_data), info->flags&DBA_PERSISTENT);
memset(info->dbf, 0, sizeof(dba_dbm_data));
return SUCCESS;
}
DBA_CLOSE_FUNC(dbm)
{
pefree(info->dbf, info->flags&DBA_PERSISTENT);
dbmclose();
}
DBA_FETCH_FUNC(dbm)
{
datum gval;
char *new = NULL;
DBM_GKEY;
gval = fetch(gkey);
if(gval.dptr) {
if(newlen) *newlen = gval.dsize;
new = estrndup(gval.dptr, gval.dsize);
}
return new;
}
DBA_UPDATE_FUNC(dbm)
{
datum gval;
DBM_GKEY;
if (mode == 1) { /* insert */
gval = fetch(gkey);
if(gval.dptr) {
return FAILURE;
}
}
gval.dptr = (char *) val;
gval.dsize = vallen;
return (store(gkey, gval) == -1 ? FAILURE : SUCCESS);
}
DBA_EXISTS_FUNC(dbm)
{
datum gval;
DBM_GKEY;
gval = fetch(gkey);
if(gval.dptr) {
return SUCCESS;
}
return FAILURE;
}
DBA_DELETE_FUNC(dbm)
{
DBM_GKEY;
return(delete(gkey) == -1 ? FAILURE : SUCCESS);
}
DBA_FIRSTKEY_FUNC(dbm)
{
DBM_DATA;
datum gkey;
char *key = NULL;
gkey = firstkey();
if(gkey.dptr) {
if(newlen) *newlen = gkey.dsize;
key = estrndup(gkey.dptr, gkey.dsize);
dba->nextkey = gkey;
} else
dba->nextkey.dptr = NULL;
return key;
}
DBA_NEXTKEY_FUNC(dbm)
{
DBM_DATA;
datum gkey;
char *nkey = NULL;
if(!dba->nextkey.dptr) return NULL;
gkey = nextkey(dba->nextkey);
if(gkey.dptr) {
if(newlen) *newlen = gkey.dsize;
nkey = estrndup(gkey.dptr, gkey.dsize);
dba->nextkey = gkey;
} else
dba->nextkey.dptr = NULL;
return nkey;
}
DBA_OPTIMIZE_FUNC(dbm)
{
/* dummy */
return SUCCESS;
}
DBA_SYNC_FUNC(dbm)
{
return SUCCESS;
}
DBA_INFO_FUNC(dbm)
{
#if DBA_GDBM
if (!strcmp(DBM_VERSION, "GDBM"))
{
return dba_info_gdbm(hnd, info);
}
#endif
return estrdup(DBM_VERSION);
}
#endif
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: sw=4 ts=4 fdm=marker
* vim<600: sw=4 ts=4
*/
|
