root/ext/spl/php_spl.c

/* [<][>][^][v][top][bottom][index][help] */

DEFINITIONS

This source file includes following definitions.
  1. PHP_GINIT_FUNCTION
  2. spl_find_ce_by_name
  3. PHP_FUNCTION
  4. PHP_FUNCTION
  5. PHP_FUNCTION
  6. spl_autoload
  7. PHP_FUNCTION
  8. PHP_FUNCTION
  9. autoload_func_info_dtor
  10. PHP_FUNCTION
  11. PHP_FUNCTION
  12. PHP_FUNCTION
  13. PHP_FUNCTION
  14. PHP_FUNCTION
  15. spl_build_class_list_string
  16. PHP_MINFO_FUNCTION
  17. PHP_MINIT_FUNCTION
  18. PHP_RINIT_FUNCTION
  19. PHP_RSHUTDOWN_FUNCTION

/*
   +----------------------------------------------------------------------+
   | PHP Version 5                                                        |
   +----------------------------------------------------------------------+
   | Copyright (c) 1997-2008 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.               |
   +----------------------------------------------------------------------+
   | Authors: Marcus Boerger <helly@php.net>                              |
   +----------------------------------------------------------------------+
 */

/* $Id: php_spl.c,v 1.52.2.28.2.18 2007/12/31 07:20:11 sebastian Exp $ */

#ifdef HAVE_CONFIG_H
        #include "config.h"
#endif

#include "php.h"
#include "php_ini.h"
#include "php_main.h"
#include "ext/standard/info.h"
#include "php_spl.h"
#include "spl_functions.h"
#include "spl_engine.h"
#include "spl_array.h"
#include "spl_directory.h"
#include "spl_iterators.h"
#include "spl_sxe.h"
#include "spl_exceptions.h"
#include "spl_observer.h"
#include "zend_exceptions.h"
#include "zend_interfaces.h"
#include "ext/standard/md5.h"

#ifdef COMPILE_DL_SPL
ZEND_GET_MODULE(spl)
#endif

ZEND_DECLARE_MODULE_GLOBALS(spl)

#define SPL_DEFAULT_FILE_EXTENSIONS ".inc,.php"

/* {{{ spl_functions_none
 */
zend_function_entry spl_functions_none[] = {
        {NULL, NULL, NULL}
};
/* }}} */

/* {{{ PHP_GINIT_FUNCTION
 */
static PHP_GINIT_FUNCTION(spl)
{
        spl_globals->autoload_extensions     = NULL;
        spl_globals->autoload_extensions_len = 0;
        spl_globals->autoload_functions      = NULL;
        spl_globals->autoload_running        = 0;
}
/* }}} */

static zend_class_entry * spl_find_ce_by_name(char *name, int len, zend_bool autoload TSRMLS_DC)
{
        zend_class_entry **ce;
        int found;

        if (!autoload) {
                char *lc_name;

                lc_name = do_alloca(len + 1);
                zend_str_tolower_copy(lc_name, name, len);

                found = zend_hash_find(EG(class_table), lc_name, len +1, (void **) &ce);
                free_alloca(lc_name);
        } else {
                found = zend_lookup_class(name, len, &ce TSRMLS_CC);
        }
        if (found != SUCCESS) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Class %s does not exist%s", name, autoload ? " and could not be loaded" : "");
                return NULL;
        }
        
        return *ce;
}

/* {{{ proto array class_parents(object instance)
 Return an array containing the names of all parent classes */
PHP_FUNCTION(class_parents)
{
        zval *obj;
        zend_class_entry *parent_class, *ce;
        zend_bool autoload = 1;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z|b", &obj, &autoload) == FAILURE) {
                RETURN_FALSE;
        }
        
        if (Z_TYPE_P(obj) != IS_OBJECT && Z_TYPE_P(obj) != IS_STRING) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "object or string expected");
                RETURN_FALSE;
        }
        
        if (Z_TYPE_P(obj) == IS_STRING) {
                if (NULL == (ce = spl_find_ce_by_name(Z_STRVAL_P(obj), Z_STRLEN_P(obj), autoload TSRMLS_CC))) {
                        RETURN_FALSE;
                }
        } else {
                ce = Z_OBJCE_P(obj);
        }
        
        array_init(return_value);
        parent_class = ce->parent;
        while (parent_class) {
                spl_add_class_name(return_value, parent_class, 0, 0 TSRMLS_CC);
                parent_class = parent_class->parent;
        }
}
/* }}} */

/* {{{ proto array class_implements(mixed what [, bool autoload ])
 Return all classes and interfaces implemented by SPL */
PHP_FUNCTION(class_implements)
{
        zval *obj;
        zend_bool autoload = 1;
        zend_class_entry *ce;
        
        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z|b", &obj, &autoload) == FAILURE) {
                RETURN_FALSE;
        }
        if (Z_TYPE_P(obj) != IS_OBJECT && Z_TYPE_P(obj) != IS_STRING) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "object or string expected");
                RETURN_FALSE;
        }
        
        if (Z_TYPE_P(obj) == IS_STRING) {
                if (NULL == (ce = spl_find_ce_by_name(Z_STRVAL_P(obj), Z_STRLEN_P(obj), autoload TSRMLS_CC))) {
                        RETURN_FALSE;
                }
        } else {
                ce = Z_OBJCE_P(obj);
        }
        
        array_init(return_value);
        spl_add_interfaces(return_value, ce, 1, ZEND_ACC_INTERFACE TSRMLS_CC);
}
/* }}} */

#define SPL_ADD_CLASS(class_name, z_list, sub, allow, ce_flags) \
        spl_add_classes(&spl_ce_ ## class_name, z_list, sub, allow, ce_flags TSRMLS_CC)

#define SPL_LIST_CLASSES(z_list, sub, allow, ce_flags) \
        SPL_ADD_CLASS(AppendIterator, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(ArrayIterator, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(ArrayObject, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(BadFunctionCallException, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(BadMethodCallException, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(CachingIterator, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(Countable, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(DirectoryIterator, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(DomainException, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(EmptyIterator, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(FilterIterator, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(InfiniteIterator, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(InvalidArgumentException, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(IteratorIterator, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(LengthException, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(LimitIterator, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(LogicException, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(NoRewindIterator, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(OuterIterator, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(OutOfBoundsException, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(OutOfRangeException, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(OverflowException, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(ParentIterator, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(RangeException, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(RecursiveArrayIterator, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(RecursiveCachingIterator, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(RecursiveDirectoryIterator, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(RecursiveFilterIterator, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(RecursiveIterator, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(RecursiveIteratorIterator, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(RecursiveRegexIterator, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(RegexIterator, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(RuntimeException, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(SeekableIterator, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(SimpleXMLIterator, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(SplFileInfo, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(SplFileObject, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(SplObjectStorage, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(SplObserver, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(SplSubject, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(SplTempFileObject, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(UnderflowException, z_list, sub, allow, ce_flags); \
        SPL_ADD_CLASS(UnexpectedValueException, z_list, sub, allow, ce_flags); \

/* {{{ proto array spl_classes()
 Return an array containing the names of all clsses and interfaces defined in SPL */
PHP_FUNCTION(spl_classes)
{
        array_init(return_value);
        
        SPL_LIST_CLASSES(return_value, 0, 0, 0)
}
/* }}} */

static int spl_autoload(const char *class_name, const char * lc_name, int class_name_len, const char * file_extension TSRMLS_DC) /* {{{ */
{
        char *class_file;
        int class_file_len;
        int dummy = 1;
        zend_file_handle file_handle;
        zend_op_array *new_op_array;
        zval *result = NULL;
        int ret;

        class_file_len = spprintf(&class_file, 0, "%s%s", lc_name, file_extension);

        ret = php_stream_open_for_zend_ex(class_file, &file_handle, ENFORCE_SAFE_MODE|USE_PATH|STREAM_OPEN_FOR_INCLUDE TSRMLS_CC);

        if (ret == SUCCESS) {
                if (!file_handle.opened_path) {
                        file_handle.opened_path = estrndup(class_file, class_file_len);
                }
                if (zend_hash_add(&EG(included_files), file_handle.opened_path, strlen(file_handle.opened_path)+1, (void *)&dummy, sizeof(int), NULL)==SUCCESS) {
                        new_op_array = zend_compile_file(&file_handle, ZEND_REQUIRE TSRMLS_CC);
                        zend_destroy_file_handle(&file_handle TSRMLS_CC);
                } else {
                        new_op_array = NULL;
                        zend_file_handle_dtor(&file_handle);
                }
                if (new_op_array) {
                        EG(return_value_ptr_ptr) = &result;
                        EG(active_op_array) = new_op_array;

                        zend_execute(new_op_array TSRMLS_CC);
        
                        destroy_op_array(new_op_array TSRMLS_CC);
                        efree(new_op_array);
                        if (!EG(exception)) {
                                if (EG(return_value_ptr_ptr)) {
                                        zval_ptr_dtor(EG(return_value_ptr_ptr));
                                }
                        }

                        efree(class_file);
                        return zend_hash_exists(EG(class_table), (char*)lc_name, class_name_len+1);
                }
        }
        efree(class_file);
        return 0;
} /* }}} */

/* {{{ proto void spl_autoload(string class_name [, string file_extensions])
 Default implementation for __autoload() */
PHP_FUNCTION(spl_autoload)
{
        char *class_name, *lc_name, *file_exts = SPL_G(autoload_extensions);
        int class_name_len, file_exts_len = SPL_G(autoload_extensions_len), found = 0;
        char *copy, *pos1, *pos2;
        zval **original_return_value = EG(return_value_ptr_ptr);
        zend_op **original_opline_ptr = EG(opline_ptr);
        zend_op_array *original_active_op_array = EG(active_op_array);
        zend_function_state *original_function_state_ptr = EG(function_state_ptr);
        
        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|s", &class_name, &class_name_len, &file_exts, &file_exts_len) == FAILURE) {
                RETURN_FALSE;
        }

        if (file_exts == NULL) { /* autoload_extensions is not intialzed, set to defaults */
                copy = pos1 = estrndup(SPL_DEFAULT_FILE_EXTENSIONS, sizeof(SPL_DEFAULT_FILE_EXTENSIONS)-1);
        } else {
                copy = pos1 = estrndup(file_exts, file_exts_len);
        }
        lc_name = zend_str_tolower_dup(class_name, class_name_len);
        while(pos1 && *pos1 && !EG(exception)) {
                EG(return_value_ptr_ptr) = original_return_value;
                EG(opline_ptr) = original_opline_ptr;
                EG(active_op_array) = original_active_op_array;
                EG(function_state_ptr) = original_function_state_ptr;
                pos2 = strchr(pos1, ',');
                if (pos2) *pos2 = '\0';
                if (spl_autoload(class_name, lc_name, class_name_len, pos1 TSRMLS_CC)) {
                        found = 1;
                        break; /* loaded */
                }
                pos1 = pos2 ? pos2 + 1 : NULL;
        }
        efree(lc_name);
        if (copy) {
                efree(copy);
        }

        EG(return_value_ptr_ptr) = original_return_value;
        EG(opline_ptr) = original_opline_ptr;
        EG(active_op_array) = original_active_op_array;
        EG(function_state_ptr) = original_function_state_ptr;

        if (!found && !SPL_G(autoload_running)) {
                /* For internal errors, we generate E_ERROR, for direct calls an exception is thrown.
                 * The "scope" is determined by an opcode, if it is ZEND_FETCH_CLASS we know function was called indirectly by
                 * the Zend engine.
                 */
                if (active_opline->opcode != ZEND_FETCH_CLASS) {
                        zend_throw_exception_ex(spl_ce_LogicException, 0 TSRMLS_CC, "Class %s could not be loaded", class_name);
                } else {
                        php_error_docref(NULL TSRMLS_CC, E_ERROR, "Class %s could not be loaded", class_name);
                }
        }
} /* }}} */

/* {{{ proto string spl_autoload_extensions([string file_extensions])
 Register and return default file extensions for spl_autoload */
PHP_FUNCTION(spl_autoload_extensions)
{
        char *file_exts;
        int file_exts_len;

        if (ZEND_NUM_ARGS() > 0) {
                if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &file_exts, &file_exts_len) == FAILURE) {
                        return;
                }
        
                if (SPL_G(autoload_extensions)) {
                        efree(SPL_G(autoload_extensions));
                }
                SPL_G(autoload_extensions) = estrndup(file_exts, file_exts_len);
                SPL_G(autoload_extensions_len) = file_exts_len;
        }

        if (SPL_G(autoload_extensions) == NULL) {
                RETURN_STRINGL(SPL_DEFAULT_FILE_EXTENSIONS, sizeof(SPL_DEFAULT_FILE_EXTENSIONS) - 1, 1);
        } else {
                RETURN_STRINGL(SPL_G(autoload_extensions), SPL_G(autoload_extensions_len), 1);
        }
} /* }}} */

typedef struct {
        zend_function *func_ptr;
        zval *obj;
        zend_class_entry *ce;
} autoload_func_info;

static void autoload_func_info_dtor(autoload_func_info *alfi)
{
        if (alfi->obj) {
                zval_ptr_dtor(&alfi->obj);
        }
}

/* {{{ proto void spl_autoload_call(string class_name)
 Try all registerd autoload function to load the requested class */
PHP_FUNCTION(spl_autoload_call)
{
        zval *class_name, *retval = NULL;
        int class_name_len;
        char *func_name, *lc_name;
        uint func_name_len;
        ulong dummy;
        HashPosition function_pos;
        autoload_func_info *alfi;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &class_name) == FAILURE || Z_TYPE_P(class_name) != IS_STRING) {
                return;
        }

        if (SPL_G(autoload_functions)) {
                int l_autoload_running = SPL_G(autoload_running);
                SPL_G(autoload_running) = 1;
                class_name_len = Z_STRLEN_P(class_name);
                lc_name = zend_str_tolower_dup(Z_STRVAL_P(class_name), class_name_len);
                zend_hash_internal_pointer_reset_ex(SPL_G(autoload_functions), &function_pos);
                while(zend_hash_has_more_elements_ex(SPL_G(autoload_functions), &function_pos) == SUCCESS && !EG(exception)) {
                        zend_hash_get_current_key_ex(SPL_G(autoload_functions), &func_name, &func_name_len, &dummy, 0, &function_pos);
                        zend_hash_get_current_data_ex(SPL_G(autoload_functions), (void **) &alfi, &function_pos);
                        zend_call_method(alfi->obj ? &alfi->obj : NULL, alfi->ce, &alfi->func_ptr, func_name, func_name_len, &retval, 1, class_name, NULL TSRMLS_CC);
                        if (retval) {
                                zval_ptr_dtor(&retval);                                 
                        }
                        if (zend_hash_exists(EG(class_table), lc_name, class_name_len + 1)) {
                                break;
                        }
                        zend_hash_move_forward_ex(SPL_G(autoload_functions), &function_pos);
                }
                efree(lc_name);
                SPL_G(autoload_running) = l_autoload_running;
        } else {
                /* do not use or overwrite &EG(autoload_func) here */
                zend_call_method_with_1_params(NULL, NULL, NULL, "spl_autoload", NULL, class_name);
        }
} /* }}} */

/* {{{ proto bool spl_autoload_register([mixed autoload_function = "spl_autoload" [, throw = true]])
 Register given function as __autoload() implementation */
PHP_FUNCTION(spl_autoload_register)
{
        char *func_name;
        int  func_name_len;
        char *lc_name = NULL;
        zval *zcallable = NULL;
        zend_bool do_throw = 1;
        zend_function *spl_func_ptr;
        autoload_func_info alfi;
        zval **obj_ptr;

        if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, ZEND_NUM_ARGS() TSRMLS_CC, "|zb", &zcallable, &do_throw) == FAILURE) {
                return;
        }

        if (ZEND_NUM_ARGS()) {
                if (Z_TYPE_P(zcallable) == IS_STRING) {
                        if (Z_STRLEN_P(zcallable) == sizeof("spl_autoload_call") - 1) {
                                if (!zend_binary_strcasecmp(Z_STRVAL_P(zcallable), sizeof("spl_autoload_call"), "spl_autoload_call", sizeof("spl_autoload_call"))) {
                                        if (do_throw) {
                                                zend_throw_exception_ex(spl_ce_LogicException, 0 TSRMLS_CC, "Function spl_autoload_call() cannot be registered");
                                        }
                                        RETURN_FALSE;
                                }
                        }
                }
        
                if (!zend_is_callable_ex(zcallable, IS_CALLABLE_STRICT, &func_name, &func_name_len, &alfi.ce, &alfi.func_ptr, &obj_ptr TSRMLS_CC)) {
                        if (Z_TYPE_P(zcallable) == IS_ARRAY) {
                                if (!obj_ptr && alfi.func_ptr && !(alfi.func_ptr->common.fn_flags & ZEND_ACC_STATIC)) {
                                        if (do_throw) {
                                                zend_throw_exception_ex(spl_ce_LogicException, 0 TSRMLS_CC, "Passed array specifies a non static method but no object");
                                        }
                                        efree(func_name);
                                        RETURN_FALSE;
                                }
                                else if (do_throw) {
                                        zend_throw_exception_ex(spl_ce_LogicException, 0 TSRMLS_CC, "Passed array does not specify %s %smethod", alfi.func_ptr ? "a callable" : "an existing", !obj_ptr ? "static " : "");
                                }
                                efree(func_name);
                                RETURN_FALSE;
                        } else if (Z_TYPE_P(zcallable) == IS_STRING) {
                                if (do_throw) {
                                        zend_throw_exception_ex(spl_ce_LogicException, 0 TSRMLS_CC, "Function '%s' not %s", func_name, alfi.func_ptr ? "callable" : "found");
                                }
                                efree(func_name);
                                RETURN_FALSE;
                        } else {
                                if (do_throw) {
                                        zend_throw_exception_ex(spl_ce_LogicException, 0 TSRMLS_CC, "Illegal value passed");
                                }
                                efree(func_name);
                                RETURN_FALSE;
                        }
                }
        
                lc_name = safe_emalloc(func_name_len, 1, sizeof(long) + 1);
                zend_str_tolower_copy(lc_name, func_name, func_name_len);
                efree(func_name);

                if (SPL_G(autoload_functions) && zend_hash_exists(SPL_G(autoload_functions), (char*)lc_name, func_name_len+1)) {
                        goto skip;
                }

                if (obj_ptr && !(alfi.func_ptr->common.fn_flags & ZEND_ACC_STATIC)) {
                        /* add object id to the hash to ensure uniqueness, for more reference look at bug #40091 */
                        memcpy(lc_name + func_name_len, &Z_OBJ_HANDLE_PP(obj_ptr), sizeof(zend_object_handle));
                        func_name_len += sizeof(zend_object_handle);
                        lc_name[func_name_len] = '\0';
                        alfi.obj = *obj_ptr;
                        alfi.obj->refcount++;
                } else {
                        alfi.obj = NULL;
                }

                if (!SPL_G(autoload_functions)) {
                        ALLOC_HASHTABLE(SPL_G(autoload_functions));
                        zend_hash_init(SPL_G(autoload_functions), 1, NULL, (dtor_func_t) autoload_func_info_dtor, 0);
                }

                zend_hash_find(EG(function_table), "spl_autoload", sizeof("spl_autoload"), (void **) &spl_func_ptr);

                if (EG(autoload_func) == spl_func_ptr) { /* registered already, so we insert that first */
                        autoload_func_info spl_alfi;

                        spl_alfi.func_ptr = spl_func_ptr;
                        spl_alfi.obj = NULL;
                        spl_alfi.ce = NULL;
                        zend_hash_add(SPL_G(autoload_functions), "spl_autoload", sizeof("spl_autoload"), &spl_alfi, sizeof(autoload_func_info), NULL);
                }

                zend_hash_add(SPL_G(autoload_functions), lc_name, func_name_len+1, &alfi.func_ptr, sizeof(autoload_func_info), NULL);
skip:
                efree(lc_name);
        }

        if (SPL_G(autoload_functions)) {
                zend_hash_find(EG(function_table), "spl_autoload_call", sizeof("spl_autoload_call"), (void **) &EG(autoload_func));
        } else {
                zend_hash_find(EG(function_table), "spl_autoload", sizeof("spl_autoload"), (void **) &EG(autoload_func));
        }
        RETURN_TRUE;
} /* }}} */

/* {{{ proto bool spl_autoload_unregister(mixed autoload_function)
 Unregister given function as __autoload() implementation */
PHP_FUNCTION(spl_autoload_unregister)
{
        char *func_name;
        int func_name_len;
        zval *zcallable;
        int success = FAILURE;
        zend_function *spl_func_ptr;
        zval **obj_ptr;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &zcallable) == FAILURE) {
                return;
        }

        if (!zend_is_callable_ex(zcallable, IS_CALLABLE_CHECK_SYNTAX_ONLY, &func_name, &func_name_len, NULL, NULL, &obj_ptr TSRMLS_CC)) {
                if (func_name) {
                        efree(func_name);
                }
                RETURN_FALSE;
        }

        zend_str_tolower(func_name, func_name_len);

        if (SPL_G(autoload_functions)) {
                if (func_name_len == sizeof("spl_autoload_call")-1 && !strcmp(func_name, "spl_autoload_call")) {
                        /* remove all */
                        zend_hash_destroy(SPL_G(autoload_functions));
                        FREE_HASHTABLE(SPL_G(autoload_functions));
                        SPL_G(autoload_functions) = NULL;
                        EG(autoload_func) = NULL;
                        success = SUCCESS;
                } else {
                        /* remove specific */
                        success = zend_hash_del(SPL_G(autoload_functions), func_name, func_name_len+1);
                        if (success != SUCCESS && obj_ptr) {
                                func_name = erealloc(func_name, func_name_len + 1 + sizeof(zend_object_handle));
                                memcpy(func_name + func_name_len, &Z_OBJ_HANDLE_PP(obj_ptr), sizeof(zend_object_handle));
                                func_name_len += sizeof(zend_object_handle);
                                func_name[func_name_len] = '\0';
                                success = zend_hash_del(SPL_G(autoload_functions), func_name, func_name_len+1);
                        }
                }
        } else if (func_name_len == sizeof("spl_autoload")-1 && !strcmp(func_name, "spl_autoload")) {
                /* register single spl_autoload() */
                zend_hash_find(EG(function_table), "spl_autoload", sizeof("spl_autoload"), (void **) &spl_func_ptr);

                if (EG(autoload_func) == spl_func_ptr) {
                        success = SUCCESS;
                        EG(autoload_func) = NULL;
                }
        }

        efree(func_name);
        RETURN_BOOL(success == SUCCESS);
} /* }}} */

/* {{{ proto false|array spl_autoload_functions()
 Return all registered __autoload() functionns */
PHP_FUNCTION(spl_autoload_functions)
{
        zend_function *fptr, **func_ptr_ptr;
        HashPosition function_pos;

        if (!EG(autoload_func)) {
                if (zend_hash_find(EG(function_table), ZEND_AUTOLOAD_FUNC_NAME, sizeof(ZEND_AUTOLOAD_FUNC_NAME), (void **) &fptr) == SUCCESS) {
                        array_init(return_value);
                        add_next_index_stringl(return_value, ZEND_AUTOLOAD_FUNC_NAME, sizeof(ZEND_AUTOLOAD_FUNC_NAME)-1, 1);
                        return;
                }
                RETURN_FALSE;
        }

        zend_hash_find(EG(function_table), "spl_autoload_call", sizeof("spl_autoload_call"), (void **) &fptr);

        if (EG(autoload_func) == fptr) {
                array_init(return_value);
                zend_hash_internal_pointer_reset_ex(SPL_G(autoload_functions), &function_pos);
                while(zend_hash_has_more_elements_ex(SPL_G(autoload_functions), &function_pos) == SUCCESS) {
                        zend_hash_get_current_data_ex(SPL_G(autoload_functions), (void **) &func_ptr_ptr, &function_pos);
                        if ((*func_ptr_ptr)->common.scope) {
                                zval *tmp;
                                MAKE_STD_ZVAL(tmp);
                                array_init(tmp);

                                add_next_index_string(tmp, (*func_ptr_ptr)->common.scope->name, 1);
                                add_next_index_string(tmp, (*func_ptr_ptr)->common.function_name, 1);
                                add_next_index_zval(return_value, tmp);
                        } else
                                add_next_index_string(return_value, (*func_ptr_ptr)->common.function_name, 1);

                        zend_hash_move_forward_ex(SPL_G(autoload_functions), &function_pos);
                }
                return;
        }

        array_init(return_value);
        add_next_index_string(return_value, EG(autoload_func)->common.function_name, 1);
} /* }}} */

/* {{{ proto string spl_object_hash(object obj)
 Return hash id for given object */
PHP_FUNCTION(spl_object_hash)
{
        zval *obj;
        int len;
        char *hash;
        char md5str[33];
        PHP_MD5_CTX context;
        unsigned char digest[16];

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "o", &obj) == FAILURE) {
                return;
        }

        len = spprintf(&hash, 0, "%p:%d", Z_OBJ_HT_P(obj), Z_OBJ_HANDLE_P(obj));
        
        md5str[0] = '\0';
        PHP_MD5Init(&context);
        PHP_MD5Update(&context, (unsigned char*)hash, len);
        PHP_MD5Final(digest, &context);
        make_digest(md5str, digest);
        RETVAL_STRING(md5str, 1);
        efree(hash);
}

int spl_build_class_list_string(zval **entry, char **list TSRMLS_DC) /* {{{ */
{
        char *res;
        
        spprintf(&res, 0, "%s, %s", *list, Z_STRVAL_PP(entry));
        efree(*list);
        *list = res;
        return ZEND_HASH_APPLY_KEEP;
} /* }}} */

/* {{{ PHP_MINFO(spl)
 */
PHP_MINFO_FUNCTION(spl)
{
        zval list;
        char *strg;

        php_info_print_table_start();
        php_info_print_table_header(2, "SPL support",        "enabled");

        INIT_PZVAL(&list);
        array_init(&list);
        SPL_LIST_CLASSES(&list, 0, 1, ZEND_ACC_INTERFACE)
        strg = estrdup("");
        zend_hash_apply_with_argument(Z_ARRVAL_P(&list), (apply_func_arg_t)spl_build_class_list_string, &strg TSRMLS_CC);
        zval_dtor(&list);
        php_info_print_table_row(2, "Interfaces", strg + 2);
        efree(strg);

        INIT_PZVAL(&list);
        array_init(&list);
        SPL_LIST_CLASSES(&list, 0, -1, ZEND_ACC_INTERFACE)
        strg = estrdup("");
        zend_hash_apply_with_argument(Z_ARRVAL_P(&list), (apply_func_arg_t)spl_build_class_list_string, &strg TSRMLS_CC);
        zval_dtor(&list);
        php_info_print_table_row(2, "Classes", strg + 2);
        efree(strg);

        php_info_print_table_end();
}
/* }}} */

static
ZEND_BEGIN_ARG_INFO_EX(arginfo_iterator_to_array, 0, 0, 1)
        ZEND_ARG_OBJ_INFO(0, iterator, Traversable, 0)
        ZEND_ARG_INFO(0, use_keys)
ZEND_END_ARG_INFO();

static
ZEND_BEGIN_ARG_INFO(arginfo_iterator, 0)
        ZEND_ARG_OBJ_INFO(0, iterator, Traversable, 0)
ZEND_END_ARG_INFO();

static
ZEND_BEGIN_ARG_INFO_EX(arginfo_iterator_apply, 0, 0, 2)
        ZEND_ARG_OBJ_INFO(0, iterator, Traversable, 0)
        ZEND_ARG_INFO(0, function)
        ZEND_ARG_ARRAY_INFO(0, args, 1)
ZEND_END_ARG_INFO();

/* {{{ spl_functions
 */
zend_function_entry spl_functions[] = {
        PHP_FE(spl_classes,             NULL)
        PHP_FE(spl_autoload,            NULL)
        PHP_FE(spl_autoload_extensions, NULL)
        PHP_FE(spl_autoload_register,   NULL)
        PHP_FE(spl_autoload_unregister, NULL)
        PHP_FE(spl_autoload_functions,  NULL)
        PHP_FE(spl_autoload_call,       NULL)
        PHP_FE(class_parents,           NULL)
        PHP_FE(class_implements,        NULL)
        PHP_FE(spl_object_hash,         NULL)
#ifdef SPL_ITERATORS_H
        PHP_FE(iterator_to_array,       arginfo_iterator_to_array)
        PHP_FE(iterator_count,          arginfo_iterator)
        PHP_FE(iterator_apply,          arginfo_iterator_apply)
#endif /* SPL_ITERATORS_H */
        {NULL, NULL, NULL}
};
/* }}} */

/* {{{ PHP_MINIT_FUNCTION(spl)
 */
PHP_MINIT_FUNCTION(spl)
{
        PHP_MINIT(spl_iterators)(INIT_FUNC_ARGS_PASSTHRU);
        PHP_MINIT(spl_array)(INIT_FUNC_ARGS_PASSTHRU);
        PHP_MINIT(spl_directory)(INIT_FUNC_ARGS_PASSTHRU);
        PHP_MINIT(spl_sxe)(INIT_FUNC_ARGS_PASSTHRU);
        PHP_MINIT(spl_exceptions)(INIT_FUNC_ARGS_PASSTHRU);
        PHP_MINIT(spl_observer)(INIT_FUNC_ARGS_PASSTHRU);

        return SUCCESS;
}
/* }}} */

PHP_RINIT_FUNCTION(spl) /* {{{ */
{
        SPL_G(autoload_extensions) = NULL;
        SPL_G(autoload_extensions_len) = 0;
        SPL_G(autoload_functions) = NULL;
        return SUCCESS;
} /* }}} */

PHP_RSHUTDOWN_FUNCTION(spl) /* {{{ */
{
        if (SPL_G(autoload_extensions)) {
                efree(SPL_G(autoload_extensions));
                SPL_G(autoload_extensions) = NULL;
                SPL_G(autoload_extensions_len) = 0;
        }
        if (SPL_G(autoload_functions)) {
                zend_hash_destroy(SPL_G(autoload_functions));
                FREE_HASHTABLE(SPL_G(autoload_functions));
                SPL_G(autoload_functions) = NULL;
        }
        return SUCCESS;
} /* }}} */

#ifdef HAVE_SIMPLEXML
static zend_module_dep spl_deps[] = {
        ZEND_MOD_REQUIRED("libxml")
        ZEND_MOD_REQUIRED("simplexml")
        {NULL, NULL, NULL}
};
#endif

/* {{{ spl_module_entry
 */
zend_module_entry spl_module_entry = {
#ifdef HAVE_SIMPLEXML
        STANDARD_MODULE_HEADER_EX, NULL,
        spl_deps,
#else
        STANDARD_MODULE_HEADER,
#endif
        "SPL",
        spl_functions,
        PHP_MINIT(spl),
        NULL,
        PHP_RINIT(spl),
        PHP_RSHUTDOWN(spl),
        PHP_MINFO(spl),
        "0.2",
        PHP_MODULE_GLOBALS(spl),
        PHP_GINIT(spl),
        NULL,
        NULL,
        STANDARD_MODULE_PROPERTIES_EX
};
/* }}} */

/*
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * End:
 * vim600: fdm=marker
 * vim: noet sw=4 ts=4
 */

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