mirror of
https://github.com/php/php-src.git
synced 2024-12-04 07:14:10 +08:00
153 lines
3.8 KiB
C
153 lines
3.8 KiB
C
/*
|
|
+----------------------------------------------------------------------+
|
|
| PHP HTML Embedded Scripting Language Version 4.0 |
|
|
+----------------------------------------------------------------------+
|
|
| Copyright (c) 1997,1998 PHP Development Team (See Credits file) |
|
|
+----------------------------------------------------------------------+
|
|
| This program is free software; you can redistribute it and/or modify |
|
|
| it under the terms of one of the following licenses: |
|
|
| |
|
|
| A) the GNU General Public License as published by the Free Software |
|
|
| Foundation; either version 2 of the License, or (at your option) |
|
|
| any later version. |
|
|
| |
|
|
| B) the PHP License as published by the PHP Development Team and |
|
|
| included in the distribution in the file: 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 both licenses referred to here. |
|
|
| If you did not, or have any questions about PHP licensing, please |
|
|
| contact core@php.net. |
|
|
+----------------------------------------------------------------------+
|
|
| Authors: Sascha Schumann <ss@2ns.de> |
|
|
+----------------------------------------------------------------------+
|
|
*/
|
|
|
|
|
|
#include <sys/stat.h>
|
|
#include <sys/types.h>
|
|
#include <fcntl.h>
|
|
|
|
#include "php.h"
|
|
#include "php_session.h"
|
|
#include "../standard/flock_compat.h"
|
|
|
|
typedef struct {
|
|
int fd;
|
|
char *lastkey;
|
|
char *basedir;
|
|
} ps_files;
|
|
|
|
ps_module ps_mod_files = {
|
|
PS_MOD(files)
|
|
};
|
|
|
|
#define PS_FILES_DATA ps_files *data = *mod_data
|
|
|
|
PS_OPEN_FUNC(files)
|
|
{
|
|
ps_files *data;
|
|
|
|
data = ecalloc(sizeof(*data), 1);
|
|
*mod_data = data;
|
|
|
|
data->fd = -1;
|
|
data->basedir = estrdup(save_path);
|
|
|
|
return SUCCESS;
|
|
}
|
|
|
|
PS_CLOSE_FUNC(files)
|
|
{
|
|
PS_FILES_DATA;
|
|
|
|
if(data->fd > -1) close(data->fd);
|
|
if(data->lastkey) efree(data->lastkey);
|
|
efree(data->basedir);
|
|
efree(data);
|
|
*mod_data = NULL;
|
|
|
|
return SUCCESS;
|
|
}
|
|
|
|
static void _ps_files_open(ps_files *data, const char *key)
|
|
{
|
|
char buf[PATH_MAX];
|
|
|
|
if(data->fd < 0 || !data->lastkey || strcmp(key, data->lastkey)) {
|
|
if(data->lastkey) efree(data->lastkey);
|
|
if(data->fd > -1) close(data->fd);
|
|
|
|
data->lastkey = estrdup(key);
|
|
|
|
snprintf(buf, PATH_MAX, "%s/%s", data->basedir, key);
|
|
data->fd = open(buf, O_CREAT | O_RDWR, 0600);
|
|
if(data->fd > -1) {
|
|
flock(data->fd, LOCK_EX);
|
|
}
|
|
}
|
|
}
|
|
|
|
PS_READ_FUNC(files)
|
|
{
|
|
int n;
|
|
struct stat sbuf;
|
|
PS_FILES_DATA;
|
|
|
|
_ps_files_open(data, key);
|
|
if(data->fd < 0)
|
|
return FAILURE;
|
|
|
|
if(fstat(data->fd, &sbuf)) {
|
|
return FAILURE;
|
|
}
|
|
|
|
lseek(data->fd, 0, SEEK_SET);
|
|
|
|
*vallen = sbuf.st_size;
|
|
*val = emalloc(sbuf.st_size);
|
|
|
|
n = read(data->fd, *val, sbuf.st_size);
|
|
if(n != sbuf.st_size) {
|
|
efree(*val);
|
|
return FAILURE;
|
|
}
|
|
|
|
return SUCCESS;
|
|
}
|
|
|
|
PS_WRITE_FUNC(files)
|
|
{
|
|
PS_FILES_DATA;
|
|
|
|
_ps_files_open(data, key);
|
|
if(data->fd < 0)
|
|
return FAILURE;
|
|
|
|
ftruncate(data->fd, 0);
|
|
lseek(data->fd, 0, SEEK_SET);
|
|
write(data->fd, val, vallen);
|
|
|
|
return SUCCESS;
|
|
}
|
|
|
|
PS_DELETE_FUNC(files)
|
|
{
|
|
char buf[PATH_MAX];
|
|
PS_FILES_DATA;
|
|
|
|
snprintf(buf, PATH_MAX, "%s/%s", data->basedir, key);
|
|
unlink(buf);
|
|
|
|
return SUCCESS;
|
|
}
|
|
|
|
PS_GC_FUNC(files)
|
|
{
|
|
return SUCCESS;
|
|
}
|