1/*
2   +----------------------------------------------------------------------+
3   | Zend Engine                                                          |
4   +----------------------------------------------------------------------+
5   | Copyright (c) 1998-2015 Zend Technologies Ltd. (http://www.zend.com) |
6   +----------------------------------------------------------------------+
7   | This source file is subject to version 2.00 of the Zend license,     |
8   | that is bundled with this package in the file LICENSE, and is        |
9   | available through the world-wide-web at the following url:           |
10   | http://www.zend.com/license/2_00.txt.                                |
11   | If you did not receive a copy of the Zend license and are unable to  |
12   | obtain it through the world-wide-web, please send a note to          |
13   | license@zend.com so we can mail you a copy immediately.              |
14   +----------------------------------------------------------------------+
15   | Authors: Andi Gutmans <andi@zend.com>                                |
16   |          Zeev Suraski <zeev@zend.com>                                |
17   +----------------------------------------------------------------------+
18*/
19
20/* $Id$ */
21
22#include "zend.h"
23#include "zend_extensions.h"
24#include "zend_modules.h"
25#include "zend_constants.h"
26#include "zend_list.h"
27#include "zend_API.h"
28#include "zend_exceptions.h"
29#include "zend_builtin_functions.h"
30#include "zend_ini.h"
31#include "zend_vm.h"
32#include "zend_dtrace.h"
33#include "zend_virtual_cwd.h"
34
35#ifdef ZTS
36# define GLOBAL_FUNCTION_TABLE      global_function_table
37# define GLOBAL_CLASS_TABLE         global_class_table
38# define GLOBAL_CONSTANTS_TABLE     global_constants_table
39# define GLOBAL_AUTO_GLOBALS_TABLE  global_auto_globals_table
40#else
41# define GLOBAL_FUNCTION_TABLE      CG(function_table)
42# define GLOBAL_CLASS_TABLE         CG(class_table)
43# define GLOBAL_AUTO_GLOBALS_TABLE  CG(auto_globals)
44# define GLOBAL_CONSTANTS_TABLE     EG(zend_constants)
45#endif
46
47/* true multithread-shared globals */
48ZEND_API zend_class_entry *zend_standard_class_def = NULL;
49ZEND_API size_t (*zend_printf)(const char *format, ...);
50ZEND_API zend_write_func_t zend_write;
51ZEND_API FILE *(*zend_fopen)(const char *filename, zend_string **opened_path);
52ZEND_API int (*zend_stream_open_function)(const char *filename, zend_file_handle *handle);
53ZEND_API void (*zend_block_interruptions)(void);
54ZEND_API void (*zend_unblock_interruptions)(void);
55ZEND_API void (*zend_ticks_function)(int ticks);
56ZEND_API void (*zend_error_cb)(int type, const char *error_filename, const uint error_lineno, const char *format, va_list args);
57size_t (*zend_vspprintf)(char **pbuf, size_t max_len, const char *format, va_list ap);
58zend_string *(*zend_vstrpprintf)(size_t max_len, const char *format, va_list ap);
59ZEND_API char *(*zend_getenv)(char *name, size_t name_len);
60ZEND_API zend_string *(*zend_resolve_path)(const char *filename, int filename_len);
61
62void (*zend_on_timeout)(int seconds);
63
64static void (*zend_message_dispatcher_p)(zend_long message, const void *data);
65static zval *(*zend_get_configuration_directive_p)(zend_string *name);
66
67static ZEND_INI_MH(OnUpdateErrorReporting) /* {{{ */
68{
69    if (!new_value) {
70        EG(error_reporting) = E_ALL & ~E_NOTICE & ~E_STRICT & ~E_DEPRECATED;
71    } else {
72        EG(error_reporting) = atoi(ZSTR_VAL(new_value));
73    }
74    return SUCCESS;
75}
76/* }}} */
77
78static ZEND_INI_MH(OnUpdateGCEnabled) /* {{{ */
79{
80    OnUpdateBool(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage);
81
82    if (GC_G(gc_enabled)) {
83        gc_init();
84    }
85
86    return SUCCESS;
87}
88/* }}} */
89
90static ZEND_INI_MH(OnUpdateScriptEncoding) /* {{{ */
91{
92    if (!CG(multibyte)) {
93        return FAILURE;
94    }
95    if (!zend_multibyte_get_functions()) {
96        return SUCCESS;
97    }
98    return zend_multibyte_set_script_encoding_by_string(new_value ? ZSTR_VAL(new_value) : NULL, new_value ? ZSTR_LEN(new_value) : 0);
99}
100/* }}} */
101
102static ZEND_INI_MH(OnUpdateAssertions) /* {{{ */
103{
104    zend_long *p, val;
105#ifndef ZTS
106    char *base = (char *) mh_arg2;
107#else
108    char *base;
109
110    base = (char *) ts_resource(*((int *) mh_arg2));
111#endif
112
113    p = (zend_long *) (base+(size_t) mh_arg1);
114
115    val = zend_atol(ZSTR_VAL(new_value), (int)ZSTR_LEN(new_value));
116
117    if (stage != ZEND_INI_STAGE_STARTUP &&
118        stage != ZEND_INI_STAGE_SHUTDOWN &&
119        *p != val &&
120        (*p < 0 || val < 0)) {
121        zend_error(E_WARNING, "zend.assertions may be completely enabled or disabled only in php.ini");
122        return FAILURE;
123    }
124
125    *p = val;
126    return SUCCESS;
127}
128/* }}} */
129
130ZEND_INI_BEGIN()
131    ZEND_INI_ENTRY("error_reporting",               NULL,       ZEND_INI_ALL,       OnUpdateErrorReporting)
132    STD_ZEND_INI_BOOLEAN("zend.assertions",             "1",    ZEND_INI_ALL,       OnUpdateAssertions,           assertions,   zend_executor_globals,  executor_globals)
133    STD_ZEND_INI_BOOLEAN("zend.enable_gc",              "1",    ZEND_INI_ALL,       OnUpdateGCEnabled,      gc_enabled,     zend_gc_globals,        gc_globals)
134    STD_ZEND_INI_BOOLEAN("zend.multibyte", "0", ZEND_INI_PERDIR, OnUpdateBool, multibyte,      zend_compiler_globals, compiler_globals)
135    ZEND_INI_ENTRY("zend.script_encoding",          NULL,       ZEND_INI_ALL,       OnUpdateScriptEncoding)
136    STD_ZEND_INI_BOOLEAN("zend.detect_unicode",         "1",    ZEND_INI_ALL,       OnUpdateBool, detect_unicode, zend_compiler_globals, compiler_globals)
137#ifdef ZEND_SIGNALS
138    STD_ZEND_INI_BOOLEAN("zend.signal_check", "0", ZEND_INI_SYSTEM, OnUpdateBool, check, zend_signal_globals_t, zend_signal_globals)
139#endif
140ZEND_INI_END()
141
142
143#ifdef ZTS
144ZEND_API int compiler_globals_id;
145ZEND_API int executor_globals_id;
146static HashTable *global_function_table = NULL;
147static HashTable *global_class_table = NULL;
148static HashTable *global_constants_table = NULL;
149static HashTable *global_auto_globals_table = NULL;
150static HashTable *global_persistent_list = NULL;
151ZEND_TSRMLS_CACHE_DEFINE();
152#endif
153
154ZEND_API zend_utility_values zend_uv;
155
156/* version information */
157static char *zend_version_info;
158static uint zend_version_info_length;
159#define ZEND_CORE_VERSION_INFO  "Zend Engine v" ZEND_VERSION ", Copyright (c) 1998-2015 Zend Technologies\n"
160#define PRINT_ZVAL_INDENT 4
161
162static void print_hash(zend_write_func_t write_func, HashTable *ht, int indent, zend_bool is_object) /* {{{ */
163{
164    zval *tmp;
165    zend_string *string_key;
166    zend_ulong num_key;
167    int i;
168
169    for (i = 0; i < indent; i++) {
170        ZEND_PUTS_EX(" ");
171    }
172    ZEND_PUTS_EX("(\n");
173    indent += PRINT_ZVAL_INDENT;
174    ZEND_HASH_FOREACH_KEY_VAL(ht, num_key, string_key, tmp) {
175        if (Z_TYPE_P(tmp) == IS_INDIRECT) {
176            tmp = Z_INDIRECT_P(tmp);
177            if (Z_TYPE_P(tmp) == IS_UNDEF) {
178                continue;
179            }
180        }
181        for (i = 0; i < indent; i++) {
182            ZEND_PUTS_EX(" ");
183        }
184        ZEND_PUTS_EX("[");
185        if (string_key) {
186            if (is_object) {
187                const char *prop_name, *class_name;
188                size_t prop_len;
189                int mangled = zend_unmangle_property_name_ex(string_key, &class_name, &prop_name, &prop_len);
190
191                ZEND_WRITE_EX(prop_name, prop_len);
192                if (class_name && mangled == SUCCESS) {
193                    if (class_name[0]=='*') {
194                        ZEND_PUTS_EX(":protected");
195                    } else {
196                        ZEND_PUTS_EX(":");
197                        ZEND_PUTS_EX(class_name);
198                        ZEND_PUTS_EX(":private");
199                    }
200                }
201            } else {
202                ZEND_WRITE_EX(ZSTR_VAL(string_key), ZSTR_LEN(string_key));
203            }
204        } else {
205            char key[25];
206            snprintf(key, sizeof(key), ZEND_LONG_FMT, num_key);
207            ZEND_PUTS_EX(key);
208        }
209        ZEND_PUTS_EX("] => ");
210        zend_print_zval_r_ex(write_func, tmp, indent+PRINT_ZVAL_INDENT);
211        ZEND_PUTS_EX("\n");
212    } ZEND_HASH_FOREACH_END();
213    indent -= PRINT_ZVAL_INDENT;
214    for (i = 0; i < indent; i++) {
215        ZEND_PUTS_EX(" ");
216    }
217    ZEND_PUTS_EX(")\n");
218}
219/* }}} */
220
221static void print_flat_hash(HashTable *ht) /* {{{ */
222{
223    zval *tmp;
224    zend_string *string_key;
225    zend_ulong num_key;
226    int i = 0;
227
228    ZEND_HASH_FOREACH_KEY_VAL_IND(ht, num_key, string_key, tmp) {
229        if (i++ > 0) {
230            ZEND_PUTS(",");
231        }
232        ZEND_PUTS("[");
233        if (string_key) {
234            ZEND_WRITE(ZSTR_VAL(string_key), ZSTR_LEN(string_key));
235        } else {
236            zend_printf(ZEND_ULONG_FMT, num_key);
237        }
238        ZEND_PUTS("] => ");
239        zend_print_flat_zval_r(tmp);
240    } ZEND_HASH_FOREACH_END();
241}
242/* }}} */
243
244ZEND_API int zend_make_printable_zval(zval *expr, zval *expr_copy) /* {{{ */
245{
246    if (Z_TYPE_P(expr) == IS_STRING) {
247        return 0;
248    } else {
249        ZVAL_STR(expr_copy, _zval_get_string_func(expr));
250        return 1;
251    }
252}
253/* }}} */
254
255ZEND_API size_t zend_print_zval(zval *expr, int indent) /* {{{ */
256{
257    return zend_print_zval_ex(zend_write, expr, indent);
258}
259/* }}} */
260
261ZEND_API size_t zend_print_zval_ex(zend_write_func_t write_func, zval *expr, int indent) /* {{{ */
262{
263    zend_string *str = zval_get_string(expr);
264    size_t len = ZSTR_LEN(str);
265
266    if (len != 0) {
267        write_func(ZSTR_VAL(str), len);
268    }
269
270    zend_string_release(str);
271    return len;
272}
273/* }}} */
274
275ZEND_API void zend_print_flat_zval_r(zval *expr) /* {{{ */
276{
277    switch (Z_TYPE_P(expr)) {
278        case IS_ARRAY:
279            ZEND_PUTS("Array (");
280            if (ZEND_HASH_APPLY_PROTECTION(Z_ARRVAL_P(expr)) &&
281                ++Z_ARRVAL_P(expr)->u.v.nApplyCount>1) {
282                ZEND_PUTS(" *RECURSION*");
283                Z_ARRVAL_P(expr)->u.v.nApplyCount--;
284                return;
285            }
286            print_flat_hash(Z_ARRVAL_P(expr));
287            ZEND_PUTS(")");
288            if (ZEND_HASH_APPLY_PROTECTION(Z_ARRVAL_P(expr))) {
289                Z_ARRVAL_P(expr)->u.v.nApplyCount--;
290            }
291            break;
292        case IS_OBJECT:
293        {
294            HashTable *properties = NULL;
295            zend_string *class_name = Z_OBJ_HANDLER_P(expr, get_class_name)(Z_OBJ_P(expr));
296            zend_printf("%s Object (", ZSTR_VAL(class_name));
297            zend_string_release(class_name);
298
299            if (Z_OBJ_APPLY_COUNT_P(expr) > 0) {
300                ZEND_PUTS(" *RECURSION*");
301                return;
302            }
303
304            if (Z_OBJ_HANDLER_P(expr, get_properties)) {
305                properties = Z_OBJPROP_P(expr);
306            }
307            if (properties) {
308                Z_OBJ_INC_APPLY_COUNT_P(expr);
309                print_flat_hash(properties);
310                Z_OBJ_DEC_APPLY_COUNT_P(expr);
311            }
312            ZEND_PUTS(")");
313            break;
314        }
315        default:
316            zend_print_variable(expr);
317            break;
318    }
319}
320/* }}} */
321
322ZEND_API void zend_print_zval_r(zval *expr, int indent) /* {{{ */
323{
324    zend_print_zval_r_ex(zend_write, expr, indent);
325}
326/* }}} */
327
328ZEND_API void zend_print_zval_r_ex(zend_write_func_t write_func, zval *expr, int indent) /* {{{ */
329{
330    ZVAL_DEREF(expr);
331    switch (Z_TYPE_P(expr)) {
332        case IS_ARRAY:
333            ZEND_PUTS_EX("Array\n");
334            if (ZEND_HASH_APPLY_PROTECTION(Z_ARRVAL_P(expr)) &&
335                ++Z_ARRVAL_P(expr)->u.v.nApplyCount>1) {
336                ZEND_PUTS_EX(" *RECURSION*");
337                Z_ARRVAL_P(expr)->u.v.nApplyCount--;
338                return;
339            }
340            print_hash(write_func, Z_ARRVAL_P(expr), indent, 0);
341            if (ZEND_HASH_APPLY_PROTECTION(Z_ARRVAL_P(expr))) {
342                Z_ARRVAL_P(expr)->u.v.nApplyCount--;
343            }
344            break;
345        case IS_OBJECT:
346            {
347                HashTable *properties;
348                int is_temp;
349
350                zend_string *class_name = Z_OBJ_HANDLER_P(expr, get_class_name)(Z_OBJ_P(expr));
351                ZEND_PUTS_EX(ZSTR_VAL(class_name));
352                zend_string_release(class_name);
353
354                ZEND_PUTS_EX(" Object\n");
355                if (Z_OBJ_APPLY_COUNT_P(expr) > 0) {
356                    ZEND_PUTS_EX(" *RECURSION*");
357                    return;
358                }
359                if ((properties = Z_OBJDEBUG_P(expr, is_temp)) == NULL) {
360                    break;
361                }
362
363                Z_OBJ_INC_APPLY_COUNT_P(expr);
364                print_hash(write_func, properties, indent, 1);
365                Z_OBJ_DEC_APPLY_COUNT_P(expr);
366
367                if (is_temp) {
368                    zend_hash_destroy(properties);
369                    FREE_HASHTABLE(properties);
370                }
371                break;
372            }
373        default:
374            zend_print_zval_ex(write_func, expr, indent);
375            break;
376    }
377}
378/* }}} */
379
380static FILE *zend_fopen_wrapper(const char *filename, zend_string **opened_path) /* {{{ */
381{
382    if (opened_path) {
383        *opened_path = zend_string_init(filename, strlen(filename), 0);
384    }
385    return fopen(filename, "rb");
386}
387/* }}} */
388
389#ifdef ZTS
390static zend_bool short_tags_default      = 1;
391static uint32_t compiler_options_default = ZEND_COMPILE_DEFAULT;
392#else
393# define short_tags_default         1
394# define compiler_options_default   ZEND_COMPILE_DEFAULT
395#endif
396
397static void zend_set_default_compile_time_values(void) /* {{{ */
398{
399    /* default compile-time values */
400    CG(short_tags) = short_tags_default;
401    CG(compiler_options) = compiler_options_default;
402}
403/* }}} */
404
405#ifdef ZEND_WIN32
406static void zend_get_windows_version_info(OSVERSIONINFOEX *osvi) /* {{{ */
407{
408    ZeroMemory(osvi, sizeof(OSVERSIONINFOEX));
409    osvi->dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
410    if(!GetVersionEx((OSVERSIONINFO *) osvi)) {
411        ZEND_ASSERT(0); /* Should not happen as sizeof is used. */
412    }
413}
414/* }}} */
415#endif
416
417static void zend_init_exception_op(void) /* {{{ */
418{
419    memset(EG(exception_op), 0, sizeof(EG(exception_op)));
420    EG(exception_op)[0].opcode = ZEND_HANDLE_EXCEPTION;
421    EG(exception_op)[0].op1_type = IS_UNUSED;
422    EG(exception_op)[0].op2_type = IS_UNUSED;
423    EG(exception_op)[0].result_type = IS_UNUSED;
424    ZEND_VM_SET_OPCODE_HANDLER(EG(exception_op));
425    EG(exception_op)[1].opcode = ZEND_HANDLE_EXCEPTION;
426    EG(exception_op)[1].op1_type = IS_UNUSED;
427    EG(exception_op)[1].op2_type = IS_UNUSED;
428    EG(exception_op)[1].result_type = IS_UNUSED;
429    ZEND_VM_SET_OPCODE_HANDLER(EG(exception_op)+1);
430    EG(exception_op)[2].opcode = ZEND_HANDLE_EXCEPTION;
431    EG(exception_op)[2].op1_type = IS_UNUSED;
432    EG(exception_op)[2].op2_type = IS_UNUSED;
433    EG(exception_op)[2].result_type = IS_UNUSED;
434    ZEND_VM_SET_OPCODE_HANDLER(EG(exception_op)+2);
435}
436/* }}} */
437
438static void zend_init_call_trampoline_op(void) /* {{{ */
439{
440    memset(&EG(call_trampoline_op), 0, sizeof(EG(call_trampoline_op)));
441    EG(call_trampoline_op).opcode = ZEND_CALL_TRAMPOLINE;
442    EG(call_trampoline_op).op1_type = IS_UNUSED;
443    EG(call_trampoline_op).op2_type = IS_UNUSED;
444    EG(call_trampoline_op).result_type = IS_UNUSED;
445    ZEND_VM_SET_OPCODE_HANDLER(&EG(call_trampoline_op));
446}
447/* }}} */
448
449#ifdef ZTS
450static void function_copy_ctor(zval *zv)
451{
452    zend_function *old_func = Z_FUNC_P(zv);
453    Z_FUNC_P(zv) = pemalloc(sizeof(zend_internal_function), 1);
454    memcpy(Z_FUNC_P(zv), old_func, sizeof(zend_internal_function));
455    function_add_ref(Z_FUNC_P(zv));
456}
457
458static void compiler_globals_ctor(zend_compiler_globals *compiler_globals) /* {{{ */
459{
460    compiler_globals->compiled_filename = NULL;
461
462    compiler_globals->function_table = (HashTable *) malloc(sizeof(HashTable));
463    zend_hash_init_ex(compiler_globals->function_table, 1024, NULL, ZEND_FUNCTION_DTOR, 1, 0);
464    zend_hash_copy(compiler_globals->function_table, global_function_table, function_copy_ctor);
465
466    compiler_globals->class_table = (HashTable *) malloc(sizeof(HashTable));
467    zend_hash_init_ex(compiler_globals->class_table, 64, NULL, ZEND_CLASS_DTOR, 1, 0);
468    zend_hash_copy(compiler_globals->class_table, global_class_table, zend_class_add_ref);
469
470    zend_set_default_compile_time_values();
471
472    compiler_globals->auto_globals = (HashTable *) malloc(sizeof(HashTable));
473    zend_hash_init_ex(compiler_globals->auto_globals, 8, NULL, NULL, 1, 0);
474    zend_hash_copy(compiler_globals->auto_globals, global_auto_globals_table, NULL /* empty element */);
475
476    compiler_globals->last_static_member = zend_hash_num_elements(compiler_globals->class_table);
477    if (compiler_globals->last_static_member) {
478        compiler_globals->static_members_table = calloc(compiler_globals->last_static_member, sizeof(zval*));
479    } else {
480        compiler_globals->static_members_table = NULL;
481    }
482    compiler_globals->script_encoding_list = NULL;
483
484#ifdef ZTS
485    zend_interned_empty_string_init(&compiler_globals->empty_string);
486
487    memset(compiler_globals->one_char_string, 0, sizeof(compiler_globals->one_char_string));
488#endif
489}
490/* }}} */
491
492static void compiler_globals_dtor(zend_compiler_globals *compiler_globals) /* {{{ */
493{
494    if (compiler_globals->function_table != GLOBAL_FUNCTION_TABLE) {
495        zend_hash_destroy(compiler_globals->function_table);
496        free(compiler_globals->function_table);
497    }
498    if (compiler_globals->class_table != GLOBAL_CLASS_TABLE) {
499        zend_hash_destroy(compiler_globals->class_table);
500        free(compiler_globals->class_table);
501    }
502    if (compiler_globals->auto_globals != GLOBAL_AUTO_GLOBALS_TABLE) {
503        zend_hash_destroy(compiler_globals->auto_globals);
504        free(compiler_globals->auto_globals);
505    }
506    if (compiler_globals->static_members_table) {
507        free(compiler_globals->static_members_table);
508    }
509    if (compiler_globals->script_encoding_list) {
510        pefree((char*)compiler_globals->script_encoding_list, 1);
511    }
512    compiler_globals->last_static_member = 0;
513
514#ifdef ZTS
515    zend_interned_empty_string_free(&compiler_globals->empty_string);
516#endif
517}
518/* }}} */
519
520static void executor_globals_ctor(zend_executor_globals *executor_globals) /* {{{ */
521{
522    ZEND_TSRMLS_CACHE_UPDATE();
523
524    zend_startup_constants();
525    zend_copy_constants(EG(zend_constants), GLOBAL_CONSTANTS_TABLE);
526    zend_init_rsrc_plist();
527    zend_init_exception_op();
528    zend_init_call_trampoline_op();
529    memset(&executor_globals->trampoline, 0, sizeof(zend_op_array));
530    executor_globals->lambda_count = 0;
531    ZVAL_UNDEF(&executor_globals->user_error_handler);
532    ZVAL_UNDEF(&executor_globals->user_exception_handler);
533    executor_globals->in_autoload = NULL;
534    executor_globals->current_execute_data = NULL;
535    executor_globals->current_module = NULL;
536    executor_globals->exit_status = 0;
537#if XPFPA_HAVE_CW
538    executor_globals->saved_fpu_cw = 0;
539#endif
540    executor_globals->saved_fpu_cw_ptr = NULL;
541    executor_globals->active = 0;
542    executor_globals->bailout = NULL;
543    executor_globals->error_handling  = EH_NORMAL;
544    executor_globals->exception_class = NULL;
545    executor_globals->exception = NULL;
546    executor_globals->objects_store.object_buckets = NULL;
547#ifdef ZEND_WIN32
548    zend_get_windows_version_info(&executor_globals->windows_version_info);
549#endif
550}
551/* }}} */
552
553static void executor_globals_dtor(zend_executor_globals *executor_globals) /* {{{ */
554{
555#ifdef ZTS
556    zend_ini_dtor(executor_globals->ini_directives);
557#else
558    zend_ini_shutdown();
559#endif
560    if (&executor_globals->persistent_list != global_persistent_list) {
561        zend_destroy_rsrc_list(&executor_globals->persistent_list);
562    }
563    if (executor_globals->zend_constants != GLOBAL_CONSTANTS_TABLE) {
564        zend_hash_destroy(executor_globals->zend_constants);
565        free(executor_globals->zend_constants);
566    }
567}
568/* }}} */
569
570static void zend_new_thread_end_handler(THREAD_T thread_id) /* {{{ */
571{
572    if (zend_copy_ini_directives() == SUCCESS) {
573        zend_ini_refresh_caches(ZEND_INI_STAGE_STARTUP);
574    }
575}
576/* }}} */
577#endif
578
579#if defined(__FreeBSD__) || defined(__DragonFly__)
580/* FreeBSD and DragonFly floating point precision fix */
581#include <floatingpoint.h>
582#endif
583
584static void ini_scanner_globals_ctor(zend_ini_scanner_globals *scanner_globals_p) /* {{{ */
585{
586    memset(scanner_globals_p, 0, sizeof(*scanner_globals_p));
587}
588/* }}} */
589
590static void php_scanner_globals_ctor(zend_php_scanner_globals *scanner_globals_p) /* {{{ */
591{
592    memset(scanner_globals_p, 0, sizeof(*scanner_globals_p));
593}
594/* }}} */
595
596void zend_init_opcodes_handlers(void);
597
598static void module_destructor_zval(zval *zv) /* {{{ */
599{
600    zend_module_entry *module = (zend_module_entry*)Z_PTR_P(zv);
601
602    module_destructor(module);
603    free(module);
604}
605/* }}} */
606
607static void auto_global_dtor(zval *zv) /* {{{ */
608{
609    free(Z_PTR_P(zv));
610}
611/* }}} */
612
613static zend_bool php_auto_globals_create_globals(zend_string *name) /* {{{ */
614{
615    zval globals;
616
617    ZVAL_ARR(&globals, &EG(symbol_table));
618    Z_TYPE_INFO_P(&globals) = IS_ARRAY | (IS_TYPE_SYMBOLTABLE << Z_TYPE_FLAGS_SHIFT);
619    ZVAL_NEW_REF(&globals, &globals);
620    zend_hash_update(&EG(symbol_table), name, &globals);
621    return 0;
622}
623/* }}} */
624
625int zend_startup(zend_utility_functions *utility_functions, char **extensions) /* {{{ */
626{
627#ifdef ZTS
628    zend_compiler_globals *compiler_globals;
629    zend_executor_globals *executor_globals;
630    extern ZEND_API ts_rsrc_id ini_scanner_globals_id;
631    extern ZEND_API ts_rsrc_id language_scanner_globals_id;
632    ZEND_TSRMLS_CACHE_UPDATE();
633#else
634    extern zend_ini_scanner_globals ini_scanner_globals;
635    extern zend_php_scanner_globals language_scanner_globals;
636#endif
637
638    start_memory_manager();
639
640    virtual_cwd_startup(); /* Could use shutdown to free the main cwd but it would just slow it down for CGI */
641
642#if defined(__FreeBSD__) || defined(__DragonFly__)
643    /* FreeBSD and DragonFly floating point precision fix */
644    fpsetmask(0);
645#endif
646
647    zend_startup_strtod();
648    zend_startup_extensions_mechanism();
649
650    /* Set up utility functions and values */
651    zend_error_cb = utility_functions->error_function;
652    zend_printf = utility_functions->printf_function;
653    zend_write = (zend_write_func_t) utility_functions->write_function;
654    zend_fopen = utility_functions->fopen_function;
655    if (!zend_fopen) {
656        zend_fopen = zend_fopen_wrapper;
657    }
658    zend_stream_open_function = utility_functions->stream_open_function;
659    zend_message_dispatcher_p = utility_functions->message_handler;
660#ifndef ZEND_SIGNALS
661    zend_block_interruptions = utility_functions->block_interruptions;
662    zend_unblock_interruptions = utility_functions->unblock_interruptions;
663#endif
664    zend_get_configuration_directive_p = utility_functions->get_configuration_directive;
665    zend_ticks_function = utility_functions->ticks_function;
666    zend_on_timeout = utility_functions->on_timeout;
667    zend_vspprintf = utility_functions->vspprintf_function;
668    zend_vstrpprintf = utility_functions->vstrpprintf_function;
669    zend_getenv = utility_functions->getenv_function;
670    zend_resolve_path = utility_functions->resolve_path_function;
671
672#if HAVE_DTRACE
673/* build with dtrace support */
674    zend_compile_file = dtrace_compile_file;
675    zend_execute_ex = dtrace_execute_ex;
676    zend_execute_internal = dtrace_execute_internal;
677#else
678    zend_compile_file = compile_file;
679    zend_execute_ex = execute_ex;
680    zend_execute_internal = NULL;
681#endif /* HAVE_SYS_SDT_H */
682    zend_compile_string = compile_string;
683    zend_throw_exception_hook = NULL;
684
685    /* Set up the default garbage collection implementation. */
686    gc_collect_cycles = zend_gc_collect_cycles;
687
688    zend_init_opcodes_handlers();
689
690    /* set up version */
691    zend_version_info = strdup(ZEND_CORE_VERSION_INFO);
692    zend_version_info_length = sizeof(ZEND_CORE_VERSION_INFO) - 1;
693
694    GLOBAL_FUNCTION_TABLE = (HashTable *) malloc(sizeof(HashTable));
695    GLOBAL_CLASS_TABLE = (HashTable *) malloc(sizeof(HashTable));
696    GLOBAL_AUTO_GLOBALS_TABLE = (HashTable *) malloc(sizeof(HashTable));
697    GLOBAL_CONSTANTS_TABLE = (HashTable *) malloc(sizeof(HashTable));
698
699    zend_hash_init_ex(GLOBAL_FUNCTION_TABLE, 1024, NULL, ZEND_FUNCTION_DTOR, 1, 0);
700    zend_hash_init_ex(GLOBAL_CLASS_TABLE, 64, NULL, ZEND_CLASS_DTOR, 1, 0);
701    zend_hash_init_ex(GLOBAL_AUTO_GLOBALS_TABLE, 8, NULL, auto_global_dtor, 1, 0);
702    zend_hash_init_ex(GLOBAL_CONSTANTS_TABLE, 128, NULL, ZEND_CONSTANT_DTOR, 1, 0);
703
704    zend_hash_init_ex(&module_registry, 32, NULL, module_destructor_zval, 1, 0);
705    zend_init_rsrc_list_dtors();
706
707#ifdef ZTS
708    ts_allocate_id(&compiler_globals_id, sizeof(zend_compiler_globals), (ts_allocate_ctor) compiler_globals_ctor, (ts_allocate_dtor) compiler_globals_dtor);
709    ts_allocate_id(&executor_globals_id, sizeof(zend_executor_globals), (ts_allocate_ctor) executor_globals_ctor, (ts_allocate_dtor) executor_globals_dtor);
710    ts_allocate_id(&language_scanner_globals_id, sizeof(zend_php_scanner_globals), (ts_allocate_ctor) php_scanner_globals_ctor, NULL);
711    ts_allocate_id(&ini_scanner_globals_id, sizeof(zend_ini_scanner_globals), (ts_allocate_ctor) ini_scanner_globals_ctor, NULL);
712    compiler_globals = ts_resource(compiler_globals_id);
713    executor_globals = ts_resource(executor_globals_id);
714
715    compiler_globals_dtor(compiler_globals);
716    compiler_globals->in_compilation = 0;
717    compiler_globals->function_table = (HashTable *) malloc(sizeof(HashTable));
718    compiler_globals->class_table = (HashTable *) malloc(sizeof(HashTable));
719
720    *compiler_globals->function_table = *GLOBAL_FUNCTION_TABLE;
721    *compiler_globals->class_table = *GLOBAL_CLASS_TABLE;
722    compiler_globals->auto_globals = GLOBAL_AUTO_GLOBALS_TABLE;
723
724    zend_hash_destroy(executor_globals->zend_constants);
725    *executor_globals->zend_constants = *GLOBAL_CONSTANTS_TABLE;
726#else
727    ini_scanner_globals_ctor(&ini_scanner_globals);
728    php_scanner_globals_ctor(&language_scanner_globals);
729    zend_set_default_compile_time_values();
730#ifdef ZEND_WIN32
731    zend_get_windows_version_info(&EG(windows_version_info));
732#endif
733#endif
734    EG(error_reporting) = E_ALL & ~E_NOTICE;
735
736    zend_interned_strings_init();
737    zend_startup_builtin_functions();
738    zend_register_standard_constants();
739    zend_register_auto_global(zend_string_init("GLOBALS", sizeof("GLOBALS") - 1, 1), 1, php_auto_globals_create_globals);
740
741#ifndef ZTS
742    zend_init_rsrc_plist();
743    zend_init_exception_op();
744    zend_init_call_trampoline_op();
745#endif
746
747    zend_ini_startup();
748
749#ifdef ZTS
750    tsrm_set_new_thread_end_handler(zend_new_thread_end_handler);
751#endif
752
753#ifdef ZEND_SIGNALS
754    zend_signal_startup();
755#endif
756
757    return SUCCESS;
758}
759/* }}} */
760
761void zend_register_standard_ini_entries(void) /* {{{ */
762{
763    int module_number = 0;
764
765    REGISTER_INI_ENTRIES();
766}
767/* }}} */
768
769/* Unlink the global (r/o) copies of the class, function and constant tables,
770 * and use a fresh r/w copy for the startup thread
771 */
772void zend_post_startup(void) /* {{{ */
773{
774#ifdef ZTS
775    zend_encoding **script_encoding_list;
776
777    zend_compiler_globals *compiler_globals = ts_resource(compiler_globals_id);
778    zend_executor_globals *executor_globals = ts_resource(executor_globals_id);
779
780    *GLOBAL_FUNCTION_TABLE = *compiler_globals->function_table;
781    *GLOBAL_CLASS_TABLE = *compiler_globals->class_table;
782    *GLOBAL_CONSTANTS_TABLE = *executor_globals->zend_constants;
783
784    short_tags_default = CG(short_tags);
785    compiler_options_default = CG(compiler_options);
786
787    zend_destroy_rsrc_list(&EG(persistent_list));
788    free(compiler_globals->function_table);
789    free(compiler_globals->class_table);
790    if ((script_encoding_list = (zend_encoding **)compiler_globals->script_encoding_list)) {
791        compiler_globals_ctor(compiler_globals);
792        compiler_globals->script_encoding_list = (const zend_encoding **)script_encoding_list;
793    } else {
794        compiler_globals_ctor(compiler_globals);
795    }
796    free(EG(zend_constants));
797
798    virtual_cwd_deactivate();
799
800    executor_globals_ctor(executor_globals);
801    global_persistent_list = &EG(persistent_list);
802    zend_copy_ini_directives();
803#else
804    virtual_cwd_deactivate();
805#endif
806}
807/* }}} */
808
809void zend_shutdown(void) /* {{{ */
810{
811    zend_destroy_rsrc_list(&EG(persistent_list));
812    if (EG(active))
813    {
814        /*
815         * The order of destruction is important here.
816         * See bugs #65463 and 66036.
817         */
818        zend_function *func;
819        zend_class_entry *ce;
820
821        ZEND_HASH_REVERSE_FOREACH_PTR(GLOBAL_FUNCTION_TABLE, func) {
822            if (func->type == ZEND_USER_FUNCTION) {
823                zend_cleanup_op_array_data((zend_op_array *) func);
824            }
825        } ZEND_HASH_FOREACH_END();
826        ZEND_HASH_REVERSE_FOREACH_PTR(GLOBAL_CLASS_TABLE, ce) {
827            if (ce->type == ZEND_USER_CLASS) {
828                zend_cleanup_user_class_data(ce);
829            } else {
830                break;
831            }
832        } ZEND_HASH_FOREACH_END();
833        zend_cleanup_internal_classes();
834        zend_hash_reverse_apply(GLOBAL_FUNCTION_TABLE, (apply_func_t) clean_non_persistent_function_full);
835        zend_hash_reverse_apply(GLOBAL_CLASS_TABLE, (apply_func_t) clean_non_persistent_class_full);
836    }
837    zend_destroy_modules();
838
839    virtual_cwd_deactivate();
840    virtual_cwd_shutdown();
841
842    zend_hash_destroy(GLOBAL_FUNCTION_TABLE);
843    zend_hash_destroy(GLOBAL_CLASS_TABLE);
844
845    zend_hash_destroy(GLOBAL_AUTO_GLOBALS_TABLE);
846    free(GLOBAL_AUTO_GLOBALS_TABLE);
847
848    zend_shutdown_extensions();
849    free(zend_version_info);
850
851    free(GLOBAL_FUNCTION_TABLE);
852    free(GLOBAL_CLASS_TABLE);
853
854    zend_hash_destroy(GLOBAL_CONSTANTS_TABLE);
855    free(GLOBAL_CONSTANTS_TABLE);
856    zend_shutdown_strtod();
857
858#ifdef ZTS
859    GLOBAL_FUNCTION_TABLE = NULL;
860    GLOBAL_CLASS_TABLE = NULL;
861    GLOBAL_AUTO_GLOBALS_TABLE = NULL;
862    GLOBAL_CONSTANTS_TABLE = NULL;
863#endif
864    zend_destroy_rsrc_list_dtors();
865
866    zend_interned_strings_dtor();
867}
868/* }}} */
869
870void zend_set_utility_values(zend_utility_values *utility_values) /* {{{ */
871{
872    zend_uv = *utility_values;
873    zend_uv.import_use_extension_length = (uint)strlen(zend_uv.import_use_extension);
874}
875/* }}} */
876
877/* this should be compatible with the standard zenderror */
878void zenderror(const char *error) /* {{{ */
879{
880    if (EG(exception)) {
881        /* An exception was thrown in the lexer, don't throw another in the parser. */
882        return;
883    }
884
885    zend_throw_exception(zend_ce_parse_error, error, E_PARSE);
886}
887/* }}} */
888
889BEGIN_EXTERN_C()
890ZEND_API void _zend_bailout(char *filename, uint lineno) /* {{{ */
891{
892
893    if (!EG(bailout)) {
894        zend_output_debug_string(1, "%s(%d) : Bailed out without a bailout address!", filename, lineno);
895        exit(-1);
896    }
897    CG(unclean_shutdown) = 1;
898    CG(active_class_entry) = NULL;
899    CG(in_compilation) = 0;
900    EG(current_execute_data) = NULL;
901    LONGJMP(*EG(bailout), FAILURE);
902}
903/* }}} */
904END_EXTERN_C()
905
906ZEND_API void zend_append_version_info(const zend_extension *extension) /* {{{ */
907{
908    char *new_info;
909    uint new_info_length;
910
911    new_info_length = (uint)(sizeof("    with  v, , by \n")
912                        + strlen(extension->name)
913                        + strlen(extension->version)
914                        + strlen(extension->copyright)
915                        + strlen(extension->author));
916
917    new_info = (char *) malloc(new_info_length + 1);
918
919    snprintf(new_info, new_info_length, "    with %s v%s, %s, by %s\n", extension->name, extension->version, extension->copyright, extension->author);
920
921    zend_version_info = (char *) realloc(zend_version_info, zend_version_info_length+new_info_length + 1);
922    strncat(zend_version_info, new_info, new_info_length);
923    zend_version_info_length += new_info_length;
924    free(new_info);
925}
926/* }}} */
927
928ZEND_API char *get_zend_version(void) /* {{{ */
929{
930    return zend_version_info;
931}
932/* }}} */
933
934ZEND_API void zend_activate(void) /* {{{ */
935{
936#ifdef ZTS
937    virtual_cwd_activate();
938#endif
939    gc_reset();
940    init_compiler();
941    init_executor();
942    startup_scanner();
943}
944/* }}} */
945
946void zend_call_destructors(void) /* {{{ */
947{
948    zend_try {
949        shutdown_destructors();
950    } zend_end_try();
951}
952/* }}} */
953
954ZEND_API void zend_deactivate(void) /* {{{ */
955{
956    /* we're no longer executing anything */
957    EG(current_execute_data) = NULL;
958
959    zend_try {
960        shutdown_scanner();
961    } zend_end_try();
962
963    /* shutdown_executor() takes care of its own bailout handling */
964    shutdown_executor();
965
966    zend_try {
967        shutdown_compiler();
968    } zend_end_try();
969
970    zend_destroy_rsrc_list(&EG(regular_list));
971
972#if GC_BENCH
973    fprintf(stderr, "GC Statistics\n");
974    fprintf(stderr, "-------------\n");
975    fprintf(stderr, "Runs:               %d\n", GC_G(gc_runs));
976    fprintf(stderr, "Collected:          %d\n", GC_G(collected));
977    fprintf(stderr, "Root buffer length: %d\n", GC_G(root_buf_length));
978    fprintf(stderr, "Root buffer peak:   %d\n\n", GC_G(root_buf_peak));
979    fprintf(stderr, "      Possible            Remove from  Marked\n");
980    fprintf(stderr, "        Root    Buffered     buffer     grey\n");
981    fprintf(stderr, "      --------  --------  -----------  ------\n");
982    fprintf(stderr, "ZVAL  %8d  %8d  %9d  %8d\n", GC_G(zval_possible_root), GC_G(zval_buffered), GC_G(zval_remove_from_buffer), GC_G(zval_marked_grey));
983    fprintf(stderr, "ZOBJ  %8d  %8d  %9d  %8d\n", GC_G(zobj_possible_root), GC_G(zobj_buffered), GC_G(zobj_remove_from_buffer), GC_G(zobj_marked_grey));
984#endif
985
986    zend_try {
987        zend_ini_deactivate();
988    } zend_end_try();
989}
990/* }}} */
991
992BEGIN_EXTERN_C()
993ZEND_API void zend_message_dispatcher(zend_long message, const void *data) /* {{{ */
994{
995    if (zend_message_dispatcher_p) {
996        zend_message_dispatcher_p(message, data);
997    }
998}
999/* }}} */
1000END_EXTERN_C()
1001
1002ZEND_API zval *zend_get_configuration_directive(zend_string *name) /* {{{ */
1003{
1004    if (zend_get_configuration_directive_p) {
1005        return zend_get_configuration_directive_p(name);
1006    } else {
1007        return NULL;
1008    }
1009}
1010/* }}} */
1011
1012#define SAVE_STACK(stack) do { \
1013        if (CG(stack).top) { \
1014            memcpy(&stack, &CG(stack), sizeof(zend_stack)); \
1015            CG(stack).top = CG(stack).max = 0; \
1016            CG(stack).elements = NULL; \
1017        } else { \
1018            stack.top = 0; \
1019        } \
1020    } while (0)
1021
1022#define RESTORE_STACK(stack) do { \
1023        if (stack.top) { \
1024            zend_stack_destroy(&CG(stack)); \
1025            memcpy(&CG(stack), &stack, sizeof(zend_stack)); \
1026        } \
1027    } while (0)
1028
1029#if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1030ZEND_API void zend_error(int type, const char *format, ...) /* {{{ */
1031#else
1032static void zend_error_va_list(int type, const char *format, va_list args)
1033#endif
1034{
1035    char *str;
1036    int len;
1037#if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1038    va_list args;
1039#endif
1040    va_list usr_copy;
1041    zval params[5];
1042    zval retval;
1043    const char *error_filename;
1044    uint error_lineno = 0;
1045    zval orig_user_error_handler;
1046    zend_bool in_compilation;
1047    zend_class_entry *saved_class_entry;
1048    zend_stack loop_var_stack;
1049    zend_stack delayed_oplines_stack;
1050    zend_array *symbol_table;
1051
1052    /* Report about uncaught exception in case of fatal errors */
1053    if (EG(exception)) {
1054        zend_execute_data *ex;
1055        const zend_op *opline;
1056
1057        switch (type) {
1058            case E_CORE_ERROR:
1059            case E_ERROR:
1060            case E_RECOVERABLE_ERROR:
1061            case E_PARSE:
1062            case E_COMPILE_ERROR:
1063            case E_USER_ERROR:
1064                ex = EG(current_execute_data);
1065                opline = NULL;
1066                while (ex && (!ex->func || !ZEND_USER_CODE(ex->func->type))) {
1067                    ex = ex->prev_execute_data;
1068                }
1069                if (ex && ex->opline->opcode == ZEND_HANDLE_EXCEPTION &&
1070                    EG(opline_before_exception)) {
1071                    opline = EG(opline_before_exception);
1072                }
1073                zend_exception_error(EG(exception), E_WARNING);
1074                EG(exception) = NULL;
1075                if (opline) {
1076                    ex->opline = opline;
1077                }
1078                break;
1079            default:
1080                break;
1081        }
1082    }
1083
1084    /* Obtain relevant filename and lineno */
1085    switch (type) {
1086        case E_CORE_ERROR:
1087        case E_CORE_WARNING:
1088            error_filename = NULL;
1089            error_lineno = 0;
1090            break;
1091        case E_PARSE:
1092        case E_COMPILE_ERROR:
1093        case E_COMPILE_WARNING:
1094        case E_ERROR:
1095        case E_NOTICE:
1096        case E_STRICT:
1097        case E_DEPRECATED:
1098        case E_WARNING:
1099        case E_USER_ERROR:
1100        case E_USER_WARNING:
1101        case E_USER_NOTICE:
1102        case E_USER_DEPRECATED:
1103        case E_RECOVERABLE_ERROR:
1104            if (zend_is_compiling()) {
1105                error_filename = ZSTR_VAL(zend_get_compiled_filename());
1106                error_lineno = zend_get_compiled_lineno();
1107            } else if (zend_is_executing()) {
1108                error_filename = zend_get_executed_filename();
1109                if (error_filename[0] == '[') { /* [no active file] */
1110                    error_filename = NULL;
1111                    error_lineno = 0;
1112                } else {
1113                    error_lineno = zend_get_executed_lineno();
1114                }
1115            } else {
1116                error_filename = NULL;
1117                error_lineno = 0;
1118            }
1119            break;
1120        default:
1121            error_filename = NULL;
1122            error_lineno = 0;
1123            break;
1124    }
1125    if (!error_filename) {
1126        error_filename = "Unknown";
1127    }
1128
1129#ifdef HAVE_DTRACE
1130    if (DTRACE_ERROR_ENABLED()) {
1131        char *dtrace_error_buffer;
1132#if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1133        va_start(args, format);
1134#endif
1135        zend_vspprintf(&dtrace_error_buffer, 0, format, args);
1136        DTRACE_ERROR(dtrace_error_buffer, (char *)error_filename, error_lineno);
1137        efree(dtrace_error_buffer);
1138#if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1139        va_end(args);
1140#endif
1141    }
1142#endif /* HAVE_DTRACE */
1143
1144#if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1145    va_start(args, format);
1146#endif
1147
1148    /* if we don't have a user defined error handler */
1149    if (Z_TYPE(EG(user_error_handler)) == IS_UNDEF
1150        || !(EG(user_error_handler_error_reporting) & type)
1151        || EG(error_handling) != EH_NORMAL) {
1152        zend_error_cb(type, error_filename, error_lineno, format, args);
1153    } else switch (type) {
1154        case E_ERROR:
1155        case E_PARSE:
1156        case E_CORE_ERROR:
1157        case E_CORE_WARNING:
1158        case E_COMPILE_ERROR:
1159        case E_COMPILE_WARNING:
1160            /* The error may not be safe to handle in user-space */
1161            zend_error_cb(type, error_filename, error_lineno, format, args);
1162            break;
1163        default:
1164            /* Handle the error in user space */
1165/* va_copy() is __va_copy() in old gcc versions.
1166 * According to the autoconf manual, using
1167 * memcpy(&dst, &src, sizeof(va_list))
1168 * gives maximum portability. */
1169#ifndef va_copy
1170# ifdef __va_copy
1171#  define va_copy(dest, src)    __va_copy((dest), (src))
1172# else
1173#  define va_copy(dest, src)    memcpy(&(dest), &(src), sizeof(va_list))
1174# endif
1175#endif
1176            va_copy(usr_copy, args);
1177            len = (int)zend_vspprintf(&str, 0, format, usr_copy);
1178            ZVAL_NEW_STR(&params[1], zend_string_init(str, len, 0));
1179            efree(str);
1180#ifdef va_copy
1181            va_end(usr_copy);
1182#endif
1183
1184            ZVAL_LONG(&params[0], type);
1185
1186            if (error_filename) {
1187                ZVAL_STRING(&params[2], error_filename);
1188            } else {
1189                ZVAL_NULL(&params[2]);
1190            }
1191
1192            ZVAL_LONG(&params[3], error_lineno);
1193
1194            symbol_table = zend_rebuild_symbol_table();
1195
1196            /* during shutdown the symbol table table can be still null */
1197            if (!symbol_table) {
1198                ZVAL_NULL(&params[4]);
1199            } else {
1200                ZVAL_ARR(&params[4], zend_array_dup(symbol_table));
1201            }
1202
1203            ZVAL_COPY_VALUE(&orig_user_error_handler, &EG(user_error_handler));
1204            ZVAL_UNDEF(&EG(user_error_handler));
1205
1206            /* User error handler may include() additinal PHP files.
1207             * If an error was generated during comilation PHP will compile
1208             * such scripts recursivly, but some CG() variables may be
1209             * inconsistent. */
1210
1211            in_compilation = CG(in_compilation);
1212            if (in_compilation) {
1213                saved_class_entry = CG(active_class_entry);
1214                CG(active_class_entry) = NULL;
1215                SAVE_STACK(loop_var_stack);
1216                SAVE_STACK(delayed_oplines_stack);
1217                CG(in_compilation) = 0;
1218            }
1219
1220            if (call_user_function_ex(CG(function_table), NULL, &orig_user_error_handler, &retval, 5, params, 1, NULL) == SUCCESS) {
1221                if (Z_TYPE(retval) != IS_UNDEF) {
1222                    if (Z_TYPE(retval) == IS_FALSE) {
1223                        zend_error_cb(type, error_filename, error_lineno, format, args);
1224                    }
1225                    zval_ptr_dtor(&retval);
1226                }
1227            } else if (!EG(exception)) {
1228                /* The user error handler failed, use built-in error handler */
1229                zend_error_cb(type, error_filename, error_lineno, format, args);
1230            }
1231
1232            if (in_compilation) {
1233                CG(active_class_entry) = saved_class_entry;
1234                RESTORE_STACK(loop_var_stack);
1235                RESTORE_STACK(delayed_oplines_stack);
1236                CG(in_compilation) = 1;
1237            }
1238
1239            zval_ptr_dtor(&params[4]);
1240            zval_ptr_dtor(&params[3]);
1241            zval_ptr_dtor(&params[2]);
1242            zval_ptr_dtor(&params[1]);
1243            zval_ptr_dtor(&params[0]);
1244
1245            if (Z_TYPE(EG(user_error_handler)) == IS_UNDEF) {
1246                ZVAL_COPY_VALUE(&EG(user_error_handler), &orig_user_error_handler);
1247            } else {
1248                zval_ptr_dtor(&orig_user_error_handler);
1249            }
1250            break;
1251    }
1252
1253#if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1254    va_end(args);
1255#endif
1256
1257    if (type == E_PARSE) {
1258        /* eval() errors do not affect exit_status */
1259        if (!(EG(current_execute_data) &&
1260            EG(current_execute_data)->func &&
1261            ZEND_USER_CODE(EG(current_execute_data)->func->type) &&
1262            EG(current_execute_data)->opline->opcode == ZEND_INCLUDE_OR_EVAL &&
1263            EG(current_execute_data)->opline->extended_value == ZEND_EVAL)) {
1264            EG(exit_status) = 255;
1265        }
1266    }
1267}
1268/* }}} */
1269
1270#ifdef HAVE_NORETURN
1271# ifdef HAVE_NORETURN_ALIAS
1272void zend_error_noreturn(int type, const char *format, ...) __attribute__ ((alias("zend_error"),noreturn));
1273# else
1274ZEND_API void zend_error(int type, const char *format, ...) /* {{{ */
1275{
1276    va_list va;
1277
1278    va_start(va, format);
1279    zend_error_va_list(type, format, va);
1280    va_end(va);
1281}
1282
1283ZEND_API ZEND_NORETURN void zend_error_noreturn(int type, const char *format, ...)
1284{
1285    va_list va;
1286
1287    va_start(va, format);
1288    zend_error_va_list(type, format, va);
1289    va_end(va);
1290}
1291/* }}} */
1292# endif
1293#endif
1294
1295ZEND_API void zend_throw_error(zend_class_entry *exception_ce, const char *format, ...) /* {{{ */
1296{
1297    va_list va;
1298    char *message = NULL;
1299
1300    va_start(va, format);
1301    zend_vspprintf(&message, 0, format, va);
1302
1303    // TODO: we can't convert compile-time errors to exceptions yet???
1304    if (EG(current_execute_data) && !CG(in_compilation)) {
1305        zend_throw_exception(exception_ce, message, 0);
1306    } else {
1307        zend_error(E_ERROR, message);
1308    }
1309
1310    efree(message);
1311    va_end(va);
1312}
1313/* }}} */
1314
1315ZEND_API void zend_type_error(const char *format, ...) /* {{{ */
1316{
1317    va_list va;
1318    char *message = NULL;
1319
1320    va_start(va, format);
1321    zend_vspprintf(&message, 0, format, va);
1322    zend_throw_exception(zend_ce_type_error, message, E_ERROR);
1323    efree(message);
1324    va_end(va);
1325} /* }}} */
1326
1327ZEND_API void zend_internal_type_error(zend_bool throw_exception, const char *format, ...) /* {{{ */
1328{
1329    va_list va;
1330    char *message = NULL;
1331
1332    va_start(va, format);
1333    zend_vspprintf(&message, 0, format, va);
1334    if (throw_exception) {
1335        zend_throw_exception(zend_ce_type_error, message, E_ERROR);
1336    } else {
1337        zend_error(E_WARNING, message);
1338    }
1339    efree(message);
1340
1341    va_end(va);
1342} /* }}} */
1343
1344ZEND_API void zend_output_debug_string(zend_bool trigger_break, const char *format, ...) /* {{{ */
1345{
1346#if ZEND_DEBUG
1347    va_list args;
1348
1349    va_start(args, format);
1350#   ifdef ZEND_WIN32
1351    {
1352        char output_buf[1024];
1353
1354        vsnprintf(output_buf, 1024, format, args);
1355        OutputDebugString(output_buf);
1356        OutputDebugString("\n");
1357        if (trigger_break && IsDebuggerPresent()) {
1358            DebugBreak();
1359        }
1360    }
1361#   else
1362    vfprintf(stderr, format, args);
1363    fprintf(stderr, "\n");
1364#   endif
1365    va_end(args);
1366#endif
1367}
1368/* }}} */
1369
1370ZEND_API int zend_execute_scripts(int type, zval *retval, int file_count, ...) /* {{{ */
1371{
1372    va_list files;
1373    int i;
1374    zend_file_handle *file_handle;
1375    zend_op_array *op_array;
1376
1377    va_start(files, file_count);
1378    for (i = 0; i < file_count; i++) {
1379        file_handle = va_arg(files, zend_file_handle *);
1380        if (!file_handle) {
1381            continue;
1382        }
1383
1384        op_array = zend_compile_file(file_handle, type);
1385        if (file_handle->opened_path) {
1386            zend_hash_add_empty_element(&EG(included_files), file_handle->opened_path);
1387        }
1388        zend_destroy_file_handle(file_handle);
1389        if (op_array) {
1390            zend_execute(op_array, retval);
1391            zend_exception_restore();
1392            if (EG(exception)) {
1393                if (Z_TYPE(EG(user_exception_handler)) != IS_UNDEF) {
1394                    zval orig_user_exception_handler;
1395                    zval params[1], retval2;
1396                    zend_object *old_exception;
1397                    old_exception = EG(exception);
1398                    EG(exception) = NULL;
1399                    ZVAL_OBJ(&params[0], old_exception);
1400                    ZVAL_COPY_VALUE(&orig_user_exception_handler, &EG(user_exception_handler));
1401
1402                    if (call_user_function_ex(CG(function_table), NULL, &orig_user_exception_handler, &retval2, 1, params, 1, NULL) == SUCCESS) {
1403                        zval_ptr_dtor(&retval2);
1404                        if (EG(exception)) {
1405                            OBJ_RELEASE(EG(exception));
1406                            EG(exception) = NULL;
1407                        }
1408                        OBJ_RELEASE(old_exception);
1409                    } else {
1410                        EG(exception) = old_exception;
1411                        zend_exception_error(EG(exception), E_ERROR);
1412                    }
1413                } else {
1414                    zend_exception_error(EG(exception), E_ERROR);
1415                }
1416            }
1417            destroy_op_array(op_array);
1418            efree_size(op_array, sizeof(zend_op_array));
1419        } else if (type==ZEND_REQUIRE) {
1420            va_end(files);
1421            return FAILURE;
1422        }
1423    }
1424    va_end(files);
1425
1426    return SUCCESS;
1427}
1428/* }}} */
1429
1430#define COMPILED_STRING_DESCRIPTION_FORMAT "%s(%d) : %s"
1431
1432ZEND_API char *zend_make_compiled_string_description(const char *name) /* {{{ */
1433{
1434    const char *cur_filename;
1435    int cur_lineno;
1436    char *compiled_string_description;
1437
1438    if (zend_is_compiling()) {
1439        cur_filename = ZSTR_VAL(zend_get_compiled_filename());
1440        cur_lineno = zend_get_compiled_lineno();
1441    } else if (zend_is_executing()) {
1442        cur_filename = zend_get_executed_filename();
1443        cur_lineno = zend_get_executed_lineno();
1444    } else {
1445        cur_filename = "Unknown";
1446        cur_lineno = 0;
1447    }
1448
1449    zend_spprintf(&compiled_string_description, 0, COMPILED_STRING_DESCRIPTION_FORMAT, cur_filename, cur_lineno, name);
1450    return compiled_string_description;
1451}
1452/* }}} */
1453
1454void free_estring(char **str_p) /* {{{ */
1455{
1456    efree(*str_p);
1457}
1458/* }}} */
1459
1460void free_string_zval(zval *zv) /* {{{ */
1461{
1462    zend_string *str = Z_PTR_P(zv);
1463    zend_string_release(str);
1464}
1465/* }}} */
1466
1467/*
1468 * Local variables:
1469 * tab-width: 4
1470 * c-basic-offset: 4
1471 * indent-tabs-mode: t
1472 * End:
1473 */
1474