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#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "php_ini.h"
#include "ext/standard/info.h"
#include "php_crack.h"
#if HAVE_CRACK
#include <packer.h>
ZEND_DECLARE_MODULE_GLOBALS(crack)
/* True global resources - no need for thread safety here */
static int le_crack;
function_entry crack_functions[] = {
ZEND_FE(crack_opendict, NULL)
ZEND_FE(crack_closedict, NULL)
ZEND_FE(crack_check, NULL)
ZEND_FE(crack_getlastmessage, NULL)
{NULL, NULL, NULL}
};
zend_module_entry crack_module_entry = {
"crack",
crack_functions,
ZEND_MINIT(crack),
ZEND_MSHUTDOWN(crack),
ZEND_RINIT(crack),
ZEND_RSHUTDOWN(crack),
PHP_MINFO(crack),
STANDARD_MODULE_PROPERTIES
};
#ifdef COMPILE_DL_CRACK
ZEND_GET_MODULE(crack)
#endif
PHP_INI_BEGIN()
STD_PHP_INI_ENTRY("crack.default_dictionary", NULL, PHP_INI_SYSTEM, OnUpdateString, default_dictionary, zend_crack_globals, crack_globals)
PHP_INI_END()
long _crack_open_dict(char *dictpath)
{
PWDICT *pwdict;
long resource;
CRACKLS_FETCH();
if (CRACKG(current_id) != -1) {
zend_error(E_WARNING, "Can not use more than one open dictionary with this implementation of libcrack");
return -1;
}
if (NULL == (pwdict = PWOpen(dictpath, "r"))) {
zend_error(E_WARNING, "Unable to open a crack dictionary");
return -1;
}
resource = zend_list_insert(pwdict, le_crack);
/* if (CRACKG(current_id) != -1) {
zend_list_delete(CRACKG(current_id));
}
*/
CRACKG(current_id) = resource;
return resource;
}
void _close_crack_dict(PWDICT *pwdict)
{
PWClose(pwdict);
}
ZEND_MINIT_FUNCTION(crack)
{
REGISTER_INI_ENTRIES();
le_crack = register_list_destructors(_close_crack_dict, NULL);
return SUCCESS;
}
ZEND_MSHUTDOWN_FUNCTION(crack)
{
UNREGISTER_INI_ENTRIES();
return SUCCESS;
}
ZEND_RINIT_FUNCTION(crack)
{
CRACKLS_FETCH();
CRACKG(last_message) = NULL;
CRACKG(current_id) = -1;
return SUCCESS;
}
ZEND_RSHUTDOWN_FUNCTION(crack)
{
CRACKLS_FETCH();
if (NULL != CRACKG(last_message)) {
efree(CRACKG(last_message));
}
return SUCCESS;
}
PHP_MINFO_FUNCTION(crack)
{
php_info_print_table_start();
php_info_print_table_header(2, "crack support", "enabled");
php_info_print_table_end();
DISPLAY_INI_ENTRIES();
}
/* {{{ proto string crack_opendict(string dictionary)
Opens a new cracklib dictionary */
ZEND_FUNCTION(crack_opendict)
{
zval **dictpath;
long resource;
if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &dictpath) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(dictpath);
if (-1 == (resource = _crack_open_dict(Z_STRVAL_PP(dictpath)))) {
RETURN_FALSE;
}
RETURN_RESOURCE(resource);
}
/* }}} */
/* {{{ proto string crack_closedict([int link_identifier])
Closes an open cracklib dictionary. */
ZEND_FUNCTION(crack_closedict)
{
PWDICT *pwdict;
zval **dictionary;
long id;
CRACKLS_FETCH();
switch (ZEND_NUM_ARGS()) {
case 0:
id = CRACKG(current_id);
break;
case 1:
if (zend_get_parameters_ex(1, &dictionary) == FAILURE) {
WRONG_PARAM_COUNT;
}
id = (*dictionary)->value.lval;
break;
default:
WRONG_PARAM_COUNT;
break;
}
ZEND_FETCH_RESOURCE(pwdict, PWDICT *, dictionary, id, "cracklib dictionary", le_crack);
if (CRACKG(current_id) == id) {
CRACKG(current_id) = -1;
}
zend_list_delete(id);
RETURN_TRUE;
}
/* }}} */
/* {{{ proto string crack_check([int dictionary,] string password)
Performs an obscure check with the given password */
ZEND_FUNCTION(crack_check)
{
zval **dictionary = NULL, **password;
char pwtrunced[STRINGSIZE];
char *message;
PWDICT *pwdict;
long id;
CRACKLS_FETCH();
switch (ZEND_NUM_ARGS()) {
case 1:
if (zend_get_parameters_ex(1, &password) == FAILURE) {
RETURN_FALSE;
}
if (NULL != CRACKG(default_dictionary) && CRACKG(current_id) == -1) {
_crack_open_dict(CRACKG(default_dictionary));
}
id = CRACKG(current_id);
break;
case 2:
if (zend_get_parameters_ex(2, &dictionary, &password) == FAILURE) {
RETURN_FALSE;
}
id = -1;
break;
default:
WRONG_PARAM_COUNT;
break;
}
ZEND_FETCH_RESOURCE(pwdict, PWDICT *, dictionary, id, "cracklib dictionary", le_crack);
convert_to_string_ex(password);
/* Prevent buffer overflow attacks. */
strlcpy(pwtrunced, Z_STRVAL_PP(password), sizeof(pwtrunced));
message = (char *)FascistLook(pwdict, pwtrunced);
if (NULL != CRACKG(last_message)) {
efree(CRACKG(last_message));
}
if (NULL == message) {
CRACKG(last_message) = estrdup("strong password");
RETURN_TRUE;
}
CRACKG(last_message) = estrdup(message);
RETURN_FALSE;
}
/* }}} */
/* {{{ proto string crack_getlastmessage()
Returns the message from the last obscure check. */
ZEND_FUNCTION(crack_getlastmessage)
{
CRACKLS_FETCH();
if (ZEND_NUM_ARGS() != 0) {
WRONG_PARAM_COUNT;
}
if (NULL == CRACKG(last_message)) {
zend_error(E_WARNING, "No obscure checks in this session");
RETURN_FALSE;
}
RETURN_STRING(CRACKG(last_message), 1);
}
/* }}} */
#endif /* HAVE_CRACK */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim: sw=4 ts=4 tw=78 fdm=marker
*/
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