diff options
Diffstat (limited to 'ext/session/mod_files.c')
| -rw-r--r-- | ext/session/mod_files.c | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/ext/session/mod_files.c b/ext/session/mod_files.c new file mode 100644 index 0000000000..9ec9ef6998 --- /dev/null +++ b/ext/session/mod_files.c @@ -0,0 +1,152 @@ +/* + +----------------------------------------------------------------------+ + | 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; +} |