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 auto_global_copy_ctor(zval *zv)
459{
460    zend_auto_global *old_ag = (zend_auto_global *) Z_PTR_P(zv);
461    zend_auto_global *new_ag = pemalloc(sizeof(zend_auto_global), 1);
462
463    new_ag->name = zend_string_copy(old_ag->name);
464    new_ag->auto_global_callback = old_ag->auto_global_callback;
465    new_ag->jit = old_ag->jit;
466
467    Z_PTR_P(zv) = new_ag;
468}
469
470static void compiler_globals_ctor(zend_compiler_globals *compiler_globals) /* {{{ */
471{
472    compiler_globals->compiled_filename = NULL;
473
474    compiler_globals->function_table = (HashTable *) malloc(sizeof(HashTable));
475    zend_hash_init_ex(compiler_globals->function_table, 1024, NULL, ZEND_FUNCTION_DTOR, 1, 0);
476    zend_hash_copy(compiler_globals->function_table, global_function_table, function_copy_ctor);
477
478    compiler_globals->class_table = (HashTable *) malloc(sizeof(HashTable));
479    zend_hash_init_ex(compiler_globals->class_table, 64, NULL, ZEND_CLASS_DTOR, 1, 0);
480    zend_hash_copy(compiler_globals->class_table, global_class_table, zend_class_add_ref);
481
482    zend_set_default_compile_time_values();
483
484    compiler_globals->auto_globals = (HashTable *) malloc(sizeof(HashTable));
485    zend_hash_init_ex(compiler_globals->auto_globals, 8, NULL, NULL, 1, 0);
486    zend_hash_copy(compiler_globals->auto_globals, global_auto_globals_table, auto_global_copy_ctor);
487
488    compiler_globals->last_static_member = zend_hash_num_elements(compiler_globals->class_table);
489    if (compiler_globals->last_static_member) {
490        compiler_globals->static_members_table = calloc(compiler_globals->last_static_member, sizeof(zval*));
491    } else {
492        compiler_globals->static_members_table = NULL;
493    }
494    compiler_globals->script_encoding_list = NULL;
495
496    zend_interned_empty_string_init(&compiler_globals->empty_string);
497
498    memset(compiler_globals->one_char_string, 0, sizeof(compiler_globals->one_char_string));
499}
500/* }}} */
501
502static void compiler_globals_dtor(zend_compiler_globals *compiler_globals) /* {{{ */
503{
504    if (compiler_globals->function_table != GLOBAL_FUNCTION_TABLE) {
505        zend_hash_destroy(compiler_globals->function_table);
506        free(compiler_globals->function_table);
507    }
508    if (compiler_globals->class_table != GLOBAL_CLASS_TABLE) {
509        zend_hash_destroy(compiler_globals->class_table);
510        free(compiler_globals->class_table);
511    }
512    if (compiler_globals->auto_globals != GLOBAL_AUTO_GLOBALS_TABLE) {
513        zend_hash_destroy(compiler_globals->auto_globals);
514        free(compiler_globals->auto_globals);
515    }
516    if (compiler_globals->static_members_table) {
517        free(compiler_globals->static_members_table);
518    }
519    if (compiler_globals->script_encoding_list) {
520        pefree((char*)compiler_globals->script_encoding_list, 1);
521    }
522    compiler_globals->last_static_member = 0;
523
524    zend_interned_empty_string_free(&compiler_globals->empty_string);
525}
526/* }}} */
527
528static void executor_globals_ctor(zend_executor_globals *executor_globals) /* {{{ */
529{
530    ZEND_TSRMLS_CACHE_UPDATE();
531
532    zend_startup_constants();
533    zend_copy_constants(EG(zend_constants), GLOBAL_CONSTANTS_TABLE);
534    zend_init_rsrc_plist();
535    zend_init_exception_op();
536    zend_init_call_trampoline_op();
537    memset(&executor_globals->trampoline, 0, sizeof(zend_op_array));
538    executor_globals->lambda_count = 0;
539    ZVAL_UNDEF(&executor_globals->user_error_handler);
540    ZVAL_UNDEF(&executor_globals->user_exception_handler);
541    executor_globals->in_autoload = NULL;
542    executor_globals->current_execute_data = NULL;
543    executor_globals->current_module = NULL;
544    executor_globals->exit_status = 0;
545#if XPFPA_HAVE_CW
546    executor_globals->saved_fpu_cw = 0;
547#endif
548    executor_globals->saved_fpu_cw_ptr = NULL;
549    executor_globals->active = 0;
550    executor_globals->bailout = NULL;
551    executor_globals->error_handling  = EH_NORMAL;
552    executor_globals->exception_class = NULL;
553    executor_globals->exception = NULL;
554    executor_globals->objects_store.object_buckets = NULL;
555#ifdef ZEND_WIN32
556    zend_get_windows_version_info(&executor_globals->windows_version_info);
557#endif
558}
559/* }}} */
560
561static void executor_globals_dtor(zend_executor_globals *executor_globals) /* {{{ */
562{
563    zend_ini_dtor(executor_globals->ini_directives);
564
565    if (&executor_globals->persistent_list != global_persistent_list) {
566        zend_destroy_rsrc_list(&executor_globals->persistent_list);
567    }
568    if (executor_globals->zend_constants != GLOBAL_CONSTANTS_TABLE) {
569        zend_hash_destroy(executor_globals->zend_constants);
570        free(executor_globals->zend_constants);
571    }
572}
573/* }}} */
574
575static void zend_new_thread_end_handler(THREAD_T thread_id) /* {{{ */
576{
577    if (zend_copy_ini_directives() == SUCCESS) {
578        zend_ini_refresh_caches(ZEND_INI_STAGE_STARTUP);
579    }
580}
581/* }}} */
582#endif
583
584#if defined(__FreeBSD__) || defined(__DragonFly__)
585/* FreeBSD and DragonFly floating point precision fix */
586#include <floatingpoint.h>
587#endif
588
589static void ini_scanner_globals_ctor(zend_ini_scanner_globals *scanner_globals_p) /* {{{ */
590{
591    memset(scanner_globals_p, 0, sizeof(*scanner_globals_p));
592}
593/* }}} */
594
595static void php_scanner_globals_ctor(zend_php_scanner_globals *scanner_globals_p) /* {{{ */
596{
597    memset(scanner_globals_p, 0, sizeof(*scanner_globals_p));
598}
599/* }}} */
600
601void zend_init_opcodes_handlers(void);
602
603static void module_destructor_zval(zval *zv) /* {{{ */
604{
605    zend_module_entry *module = (zend_module_entry*)Z_PTR_P(zv);
606
607    module_destructor(module);
608    free(module);
609}
610/* }}} */
611
612static void auto_global_dtor(zval *zv) /* {{{ */
613{
614    free(Z_PTR_P(zv));
615}
616/* }}} */
617
618static zend_bool php_auto_globals_create_globals(zend_string *name) /* {{{ */
619{
620    zval globals;
621
622    ZVAL_ARR(&globals, &EG(symbol_table));
623    Z_TYPE_INFO_P(&globals) = IS_ARRAY | (IS_TYPE_SYMBOLTABLE << Z_TYPE_FLAGS_SHIFT);
624    ZVAL_NEW_REF(&globals, &globals);
625    zend_hash_update(&EG(symbol_table), name, &globals);
626    return 0;
627}
628/* }}} */
629
630int zend_startup(zend_utility_functions *utility_functions, char **extensions) /* {{{ */
631{
632#ifdef ZTS
633    zend_compiler_globals *compiler_globals;
634    zend_executor_globals *executor_globals;
635    extern ZEND_API ts_rsrc_id ini_scanner_globals_id;
636    extern ZEND_API ts_rsrc_id language_scanner_globals_id;
637    ZEND_TSRMLS_CACHE_UPDATE();
638#else
639    extern zend_ini_scanner_globals ini_scanner_globals;
640    extern zend_php_scanner_globals language_scanner_globals;
641#endif
642
643    start_memory_manager();
644
645    virtual_cwd_startup(); /* Could use shutdown to free the main cwd but it would just slow it down for CGI */
646
647#if defined(__FreeBSD__) || defined(__DragonFly__)
648    /* FreeBSD and DragonFly floating point precision fix */
649    fpsetmask(0);
650#endif
651
652    zend_startup_strtod();
653    zend_startup_extensions_mechanism();
654
655    /* Set up utility functions and values */
656    zend_error_cb = utility_functions->error_function;
657    zend_printf = utility_functions->printf_function;
658    zend_write = (zend_write_func_t) utility_functions->write_function;
659    zend_fopen = utility_functions->fopen_function;
660    if (!zend_fopen) {
661        zend_fopen = zend_fopen_wrapper;
662    }
663    zend_stream_open_function = utility_functions->stream_open_function;
664    zend_message_dispatcher_p = utility_functions->message_handler;
665#ifndef ZEND_SIGNALS
666    zend_block_interruptions = utility_functions->block_interruptions;
667    zend_unblock_interruptions = utility_functions->unblock_interruptions;
668#endif
669    zend_get_configuration_directive_p = utility_functions->get_configuration_directive;
670    zend_ticks_function = utility_functions->ticks_function;
671    zend_on_timeout = utility_functions->on_timeout;
672    zend_vspprintf = utility_functions->vspprintf_function;
673    zend_vstrpprintf = utility_functions->vstrpprintf_function;
674    zend_getenv = utility_functions->getenv_function;
675    zend_resolve_path = utility_functions->resolve_path_function;
676
677#if HAVE_DTRACE
678/* build with dtrace support */
679    zend_compile_file = dtrace_compile_file;
680    zend_execute_ex = dtrace_execute_ex;
681    zend_execute_internal = dtrace_execute_internal;
682#else
683    zend_compile_file = compile_file;
684    zend_execute_ex = execute_ex;
685    zend_execute_internal = NULL;
686#endif /* HAVE_SYS_SDT_H */
687    zend_compile_string = compile_string;
688    zend_throw_exception_hook = NULL;
689
690    /* Set up the default garbage collection implementation. */
691    gc_collect_cycles = zend_gc_collect_cycles;
692
693    zend_init_opcodes_handlers();
694
695    /* set up version */
696    zend_version_info = strdup(ZEND_CORE_VERSION_INFO);
697    zend_version_info_length = sizeof(ZEND_CORE_VERSION_INFO) - 1;
698
699    GLOBAL_FUNCTION_TABLE = (HashTable *) malloc(sizeof(HashTable));
700    GLOBAL_CLASS_TABLE = (HashTable *) malloc(sizeof(HashTable));
701    GLOBAL_AUTO_GLOBALS_TABLE = (HashTable *) malloc(sizeof(HashTable));
702    GLOBAL_CONSTANTS_TABLE = (HashTable *) malloc(sizeof(HashTable));
703
704    zend_hash_init_ex(GLOBAL_FUNCTION_TABLE, 1024, NULL, ZEND_FUNCTION_DTOR, 1, 0);
705    zend_hash_init_ex(GLOBAL_CLASS_TABLE, 64, NULL, ZEND_CLASS_DTOR, 1, 0);
706    zend_hash_init_ex(GLOBAL_AUTO_GLOBALS_TABLE, 8, NULL, auto_global_dtor, 1, 0);
707    zend_hash_init_ex(GLOBAL_CONSTANTS_TABLE, 128, NULL, ZEND_CONSTANT_DTOR, 1, 0);
708
709    zend_hash_init_ex(&module_registry, 32, NULL, module_destructor_zval, 1, 0);
710    zend_init_rsrc_list_dtors();
711
712#ifdef ZTS
713    ts_allocate_id(&compiler_globals_id, sizeof(zend_compiler_globals), (ts_allocate_ctor) compiler_globals_ctor, (ts_allocate_dtor) compiler_globals_dtor);
714    ts_allocate_id(&executor_globals_id, sizeof(zend_executor_globals), (ts_allocate_ctor) executor_globals_ctor, (ts_allocate_dtor) executor_globals_dtor);
715    ts_allocate_id(&language_scanner_globals_id, sizeof(zend_php_scanner_globals), (ts_allocate_ctor) php_scanner_globals_ctor, NULL);
716    ts_allocate_id(&ini_scanner_globals_id, sizeof(zend_ini_scanner_globals), (ts_allocate_ctor) ini_scanner_globals_ctor, NULL);
717    compiler_globals = ts_resource(compiler_globals_id);
718    executor_globals = ts_resource(executor_globals_id);
719
720    compiler_globals_dtor(compiler_globals);
721    compiler_globals->in_compilation = 0;
722    compiler_globals->function_table = (HashTable *) malloc(sizeof(HashTable));
723    compiler_globals->class_table = (HashTable *) malloc(sizeof(HashTable));
724
725    *compiler_globals->function_table = *GLOBAL_FUNCTION_TABLE;
726    *compiler_globals->class_table = *GLOBAL_CLASS_TABLE;
727    compiler_globals->auto_globals = GLOBAL_AUTO_GLOBALS_TABLE;
728
729    zend_hash_destroy(executor_globals->zend_constants);
730    *executor_globals->zend_constants = *GLOBAL_CONSTANTS_TABLE;
731#else
732    ini_scanner_globals_ctor(&ini_scanner_globals);
733    php_scanner_globals_ctor(&language_scanner_globals);
734    zend_set_default_compile_time_values();
735#ifdef ZEND_WIN32
736    zend_get_windows_version_info(&EG(windows_version_info));
737#endif
738#endif
739    EG(error_reporting) = E_ALL & ~E_NOTICE;
740
741    zend_interned_strings_init();
742    zend_startup_builtin_functions();
743    zend_register_standard_constants();
744    zend_register_auto_global(zend_string_init("GLOBALS", sizeof("GLOBALS") - 1, 1), 1, php_auto_globals_create_globals);
745
746#ifndef ZTS
747    zend_init_rsrc_plist();
748    zend_init_exception_op();
749    zend_init_call_trampoline_op();
750#endif
751
752    zend_ini_startup();
753
754#ifdef ZTS
755    tsrm_set_new_thread_end_handler(zend_new_thread_end_handler);
756#endif
757
758    return SUCCESS;
759}
760/* }}} */
761
762void zend_register_standard_ini_entries(void) /* {{{ */
763{
764    int module_number = 0;
765
766    REGISTER_INI_ENTRIES();
767}
768/* }}} */
769
770/* Unlink the global (r/o) copies of the class, function and constant tables,
771 * and use a fresh r/w copy for the startup thread
772 */
773void zend_post_startup(void) /* {{{ */
774{
775#ifdef ZTS
776    zend_encoding **script_encoding_list;
777
778    zend_compiler_globals *compiler_globals = ts_resource(compiler_globals_id);
779    zend_executor_globals *executor_globals = ts_resource(executor_globals_id);
780
781    *GLOBAL_FUNCTION_TABLE = *compiler_globals->function_table;
782    *GLOBAL_CLASS_TABLE = *compiler_globals->class_table;
783    *GLOBAL_CONSTANTS_TABLE = *executor_globals->zend_constants;
784
785    short_tags_default = CG(short_tags);
786    compiler_options_default = CG(compiler_options);
787
788    zend_destroy_rsrc_list(&EG(persistent_list));
789    free(compiler_globals->function_table);
790    free(compiler_globals->class_table);
791    if ((script_encoding_list = (zend_encoding **)compiler_globals->script_encoding_list)) {
792        compiler_globals_ctor(compiler_globals);
793        compiler_globals->script_encoding_list = (const zend_encoding **)script_encoding_list;
794    } else {
795        compiler_globals_ctor(compiler_globals);
796    }
797    free(EG(zend_constants));
798
799    virtual_cwd_deactivate();
800
801    executor_globals_ctor(executor_globals);
802    global_persistent_list = &EG(persistent_list);
803    zend_copy_ini_directives();
804#else
805    virtual_cwd_deactivate();
806#endif
807}
808/* }}} */
809
810void zend_shutdown(void) /* {{{ */
811{
812    zend_destroy_rsrc_list(&EG(persistent_list));
813    if (EG(active))
814    {
815        /*
816         * The order of destruction is important here.
817         * See bugs #65463 and 66036.
818         */
819        zend_function *func;
820        zend_class_entry *ce;
821
822        ZEND_HASH_REVERSE_FOREACH_PTR(GLOBAL_FUNCTION_TABLE, func) {
823            if (func->type == ZEND_USER_FUNCTION) {
824                zend_cleanup_op_array_data((zend_op_array *) func);
825            }
826        } ZEND_HASH_FOREACH_END();
827        ZEND_HASH_REVERSE_FOREACH_PTR(GLOBAL_CLASS_TABLE, ce) {
828            if (ce->type == ZEND_USER_CLASS) {
829                zend_cleanup_user_class_data(ce);
830            } else {
831                break;
832            }
833        } ZEND_HASH_FOREACH_END();
834        zend_cleanup_internal_classes();
835        zend_hash_reverse_apply(GLOBAL_FUNCTION_TABLE, (apply_func_t) clean_non_persistent_function_full);
836        zend_hash_reverse_apply(GLOBAL_CLASS_TABLE, (apply_func_t) clean_non_persistent_class_full);
837    }
838    zend_destroy_modules();
839
840    virtual_cwd_deactivate();
841    virtual_cwd_shutdown();
842
843    zend_hash_destroy(GLOBAL_FUNCTION_TABLE);
844    zend_hash_destroy(GLOBAL_CLASS_TABLE);
845
846    zend_hash_destroy(GLOBAL_AUTO_GLOBALS_TABLE);
847    free(GLOBAL_AUTO_GLOBALS_TABLE);
848
849    zend_shutdown_extensions();
850    free(zend_version_info);
851
852    free(GLOBAL_FUNCTION_TABLE);
853    free(GLOBAL_CLASS_TABLE);
854
855    zend_hash_destroy(GLOBAL_CONSTANTS_TABLE);
856    free(GLOBAL_CONSTANTS_TABLE);
857    zend_shutdown_strtod();
858
859#ifdef ZTS
860    GLOBAL_FUNCTION_TABLE = NULL;
861    GLOBAL_CLASS_TABLE = NULL;
862    GLOBAL_AUTO_GLOBALS_TABLE = NULL;
863    GLOBAL_CONSTANTS_TABLE = NULL;
864#endif
865    zend_destroy_rsrc_list_dtors();
866
867    zend_interned_strings_dtor();
868}
869/* }}} */
870
871void zend_set_utility_values(zend_utility_values *utility_values) /* {{{ */
872{
873    zend_uv = *utility_values;
874    zend_uv.import_use_extension_length = (uint)strlen(zend_uv.import_use_extension);
875}
876/* }}} */
877
878/* this should be compatible with the standard zenderror */
879ZEND_COLD void zenderror(const char *error) /* {{{ */
880{
881    if (EG(exception)) {
882        /* An exception was thrown in the lexer, don't throw another in the parser. */
883        return;
884    }
885
886    zend_throw_exception(zend_ce_parse_error, error, 0);
887}
888/* }}} */
889
890BEGIN_EXTERN_C()
891ZEND_API ZEND_COLD void _zend_bailout(char *filename, uint lineno) /* {{{ */
892{
893
894    if (!EG(bailout)) {
895        zend_output_debug_string(1, "%s(%d) : Bailed out without a bailout address!", filename, lineno);
896        exit(-1);
897    }
898    CG(unclean_shutdown) = 1;
899    CG(active_class_entry) = NULL;
900    CG(in_compilation) = 0;
901    EG(current_execute_data) = NULL;
902    LONGJMP(*EG(bailout), FAILURE);
903}
904/* }}} */
905END_EXTERN_C()
906
907ZEND_API void zend_append_version_info(const zend_extension *extension) /* {{{ */
908{
909    char *new_info;
910    uint new_info_length;
911
912    new_info_length = (uint)(sizeof("    with  v, , by \n")
913                        + strlen(extension->name)
914                        + strlen(extension->version)
915                        + strlen(extension->copyright)
916                        + strlen(extension->author));
917
918    new_info = (char *) malloc(new_info_length + 1);
919
920    snprintf(new_info, new_info_length, "    with %s v%s, %s, by %s\n", extension->name, extension->version, extension->copyright, extension->author);
921
922    zend_version_info = (char *) realloc(zend_version_info, zend_version_info_length+new_info_length + 1);
923    strncat(zend_version_info, new_info, new_info_length);
924    zend_version_info_length += new_info_length;
925    free(new_info);
926}
927/* }}} */
928
929ZEND_API char *get_zend_version(void) /* {{{ */
930{
931    return zend_version_info;
932}
933/* }}} */
934
935ZEND_API void zend_activate(void) /* {{{ */
936{
937#ifdef ZTS
938    virtual_cwd_activate();
939#endif
940    gc_reset();
941    init_compiler();
942    init_executor();
943    startup_scanner();
944}
945/* }}} */
946
947void zend_call_destructors(void) /* {{{ */
948{
949    zend_try {
950        shutdown_destructors();
951    } zend_end_try();
952}
953/* }}} */
954
955ZEND_API void zend_deactivate(void) /* {{{ */
956{
957    /* we're no longer executing anything */
958    EG(current_execute_data) = NULL;
959
960    zend_try {
961        shutdown_scanner();
962    } zend_end_try();
963
964    /* shutdown_executor() takes care of its own bailout handling */
965    shutdown_executor();
966
967    zend_try {
968        shutdown_compiler();
969    } zend_end_try();
970
971    zend_destroy_rsrc_list(&EG(regular_list));
972
973#if GC_BENCH
974    fprintf(stderr, "GC Statistics\n");
975    fprintf(stderr, "-------------\n");
976    fprintf(stderr, "Runs:               %d\n", GC_G(gc_runs));
977    fprintf(stderr, "Collected:          %d\n", GC_G(collected));
978    fprintf(stderr, "Root buffer length: %d\n", GC_G(root_buf_length));
979    fprintf(stderr, "Root buffer peak:   %d\n\n", GC_G(root_buf_peak));
980    fprintf(stderr, "      Possible            Remove from  Marked\n");
981    fprintf(stderr, "        Root    Buffered     buffer     grey\n");
982    fprintf(stderr, "      --------  --------  -----------  ------\n");
983    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));
984    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));
985#endif
986
987    zend_try {
988        zend_ini_deactivate();
989    } zend_end_try();
990}
991/* }}} */
992
993BEGIN_EXTERN_C()
994ZEND_API void zend_message_dispatcher(zend_long message, const void *data) /* {{{ */
995{
996    if (zend_message_dispatcher_p) {
997        zend_message_dispatcher_p(message, data);
998    }
999}
1000/* }}} */
1001END_EXTERN_C()
1002
1003ZEND_API zval *zend_get_configuration_directive(zend_string *name) /* {{{ */
1004{
1005    if (zend_get_configuration_directive_p) {
1006        return zend_get_configuration_directive_p(name);
1007    } else {
1008        return NULL;
1009    }
1010}
1011/* }}} */
1012
1013#define SAVE_STACK(stack) do { \
1014        if (CG(stack).top) { \
1015            memcpy(&stack, &CG(stack), sizeof(zend_stack)); \
1016            CG(stack).top = CG(stack).max = 0; \
1017            CG(stack).elements = NULL; \
1018        } else { \
1019            stack.top = 0; \
1020        } \
1021    } while (0)
1022
1023#define RESTORE_STACK(stack) do { \
1024        if (stack.top) { \
1025            zend_stack_destroy(&CG(stack)); \
1026            memcpy(&CG(stack), &stack, sizeof(zend_stack)); \
1027        } \
1028    } while (0)
1029
1030#if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1031ZEND_API ZEND_COLD void zend_error(int type, const char *format, ...) /* {{{ */
1032#else
1033static ZEND_COLD void zend_error_va_list(int type, const char *format, va_list args)
1034#endif
1035{
1036    char *str;
1037    int len;
1038#if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1039    va_list args;
1040#endif
1041    va_list usr_copy;
1042    zval params[5];
1043    zval retval;
1044    const char *error_filename;
1045    uint error_lineno = 0;
1046    zval orig_user_error_handler;
1047    zend_bool in_compilation;
1048    zend_class_entry *saved_class_entry;
1049    zend_stack loop_var_stack;
1050    zend_stack delayed_oplines_stack;
1051    zend_array *symbol_table;
1052
1053    /* Report about uncaught exception in case of fatal errors */
1054    if (EG(exception)) {
1055        zend_execute_data *ex;
1056        const zend_op *opline;
1057
1058        switch (type) {
1059            case E_CORE_ERROR:
1060            case E_ERROR:
1061            case E_RECOVERABLE_ERROR:
1062            case E_PARSE:
1063            case E_COMPILE_ERROR:
1064            case E_USER_ERROR:
1065                ex = EG(current_execute_data);
1066                opline = NULL;
1067                while (ex && (!ex->func || !ZEND_USER_CODE(ex->func->type))) {
1068                    ex = ex->prev_execute_data;
1069                }
1070                if (ex && ex->opline->opcode == ZEND_HANDLE_EXCEPTION &&
1071                    EG(opline_before_exception)) {
1072                    opline = EG(opline_before_exception);
1073                }
1074                zend_exception_error(EG(exception), E_WARNING);
1075                EG(exception) = NULL;
1076                if (opline) {
1077                    ex->opline = opline;
1078                }
1079                break;
1080            default:
1081                break;
1082        }
1083    }
1084
1085    /* Obtain relevant filename and lineno */
1086    switch (type) {
1087        case E_CORE_ERROR:
1088        case E_CORE_WARNING:
1089            error_filename = NULL;
1090            error_lineno = 0;
1091            break;
1092        case E_PARSE:
1093        case E_COMPILE_ERROR:
1094        case E_COMPILE_WARNING:
1095        case E_ERROR:
1096        case E_NOTICE:
1097        case E_STRICT:
1098        case E_DEPRECATED:
1099        case E_WARNING:
1100        case E_USER_ERROR:
1101        case E_USER_WARNING:
1102        case E_USER_NOTICE:
1103        case E_USER_DEPRECATED:
1104        case E_RECOVERABLE_ERROR:
1105            if (zend_is_compiling()) {
1106                error_filename = ZSTR_VAL(zend_get_compiled_filename());
1107                error_lineno = zend_get_compiled_lineno();
1108            } else if (zend_is_executing()) {
1109                error_filename = zend_get_executed_filename();
1110                if (error_filename[0] == '[') { /* [no active file] */
1111                    error_filename = NULL;
1112                    error_lineno = 0;
1113                } else {
1114                    error_lineno = zend_get_executed_lineno();
1115                }
1116            } else {
1117                error_filename = NULL;
1118                error_lineno = 0;
1119            }
1120            break;
1121        default:
1122            error_filename = NULL;
1123            error_lineno = 0;
1124            break;
1125    }
1126    if (!error_filename) {
1127        error_filename = "Unknown";
1128    }
1129
1130#ifdef HAVE_DTRACE
1131    if (DTRACE_ERROR_ENABLED()) {
1132        char *dtrace_error_buffer;
1133#if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1134        va_start(args, format);
1135#endif
1136        zend_vspprintf(&dtrace_error_buffer, 0, format, args);
1137        DTRACE_ERROR(dtrace_error_buffer, (char *)error_filename, error_lineno);
1138        efree(dtrace_error_buffer);
1139#if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1140        va_end(args);
1141#endif
1142    }
1143#endif /* HAVE_DTRACE */
1144
1145#if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1146    va_start(args, format);
1147#endif
1148
1149    /* if we don't have a user defined error handler */
1150    if (Z_TYPE(EG(user_error_handler)) == IS_UNDEF
1151        || !(EG(user_error_handler_error_reporting) & type)
1152        || EG(error_handling) != EH_NORMAL) {
1153        zend_error_cb(type, error_filename, error_lineno, format, args);
1154    } else switch (type) {
1155        case E_ERROR:
1156        case E_PARSE:
1157        case E_CORE_ERROR:
1158        case E_CORE_WARNING:
1159        case E_COMPILE_ERROR:
1160        case E_COMPILE_WARNING:
1161            /* The error may not be safe to handle in user-space */
1162            zend_error_cb(type, error_filename, error_lineno, format, args);
1163            break;
1164        default:
1165            /* Handle the error in user space */
1166/* va_copy() is __va_copy() in old gcc versions.
1167 * According to the autoconf manual, using
1168 * memcpy(&dst, &src, sizeof(va_list))
1169 * gives maximum portability. */
1170#ifndef va_copy
1171# ifdef __va_copy
1172#  define va_copy(dest, src)    __va_copy((dest), (src))
1173# else
1174#  define va_copy(dest, src)    memcpy(&(dest), &(src), sizeof(va_list))
1175# endif
1176#endif
1177            va_copy(usr_copy, args);
1178            len = (int)zend_vspprintf(&str, 0, format, usr_copy);
1179            ZVAL_NEW_STR(&params[1], zend_string_init(str, len, 0));
1180            efree(str);
1181#ifdef va_copy
1182            va_end(usr_copy);
1183#endif
1184
1185            ZVAL_LONG(&params[0], type);
1186
1187            if (error_filename) {
1188                ZVAL_STRING(&params[2], error_filename);
1189            } else {
1190                ZVAL_NULL(&params[2]);
1191            }
1192
1193            ZVAL_LONG(&params[3], error_lineno);
1194
1195            symbol_table = zend_rebuild_symbol_table();
1196
1197            /* during shutdown the symbol table table can be still null */
1198            if (!symbol_table) {
1199                ZVAL_NULL(&params[4]);
1200            } else {
1201                ZVAL_ARR(&params[4], zend_array_dup(symbol_table));
1202            }
1203
1204            ZVAL_COPY_VALUE(&orig_user_error_handler, &EG(user_error_handler));
1205            ZVAL_UNDEF(&EG(user_error_handler));
1206
1207            /* User error handler may include() additinal PHP files.
1208             * If an error was generated during comilation PHP will compile
1209             * such scripts recursivly, but some CG() variables may be
1210             * inconsistent. */
1211
1212            in_compilation = CG(in_compilation);
1213            if (in_compilation) {
1214                saved_class_entry = CG(active_class_entry);
1215                CG(active_class_entry) = NULL;
1216                SAVE_STACK(loop_var_stack);
1217                SAVE_STACK(delayed_oplines_stack);
1218                CG(in_compilation) = 0;
1219            }
1220
1221            if (call_user_function_ex(CG(function_table), NULL, &orig_user_error_handler, &retval, 5, params, 1, NULL) == SUCCESS) {
1222                if (Z_TYPE(retval) != IS_UNDEF) {
1223                    if (Z_TYPE(retval) == IS_FALSE) {
1224                        zend_error_cb(type, error_filename, error_lineno, format, args);
1225                    }
1226                    zval_ptr_dtor(&retval);
1227                }
1228            } else if (!EG(exception)) {
1229                /* The user error handler failed, use built-in error handler */
1230                zend_error_cb(type, error_filename, error_lineno, format, args);
1231            }
1232
1233            if (in_compilation) {
1234                CG(active_class_entry) = saved_class_entry;
1235                RESTORE_STACK(loop_var_stack);
1236                RESTORE_STACK(delayed_oplines_stack);
1237                CG(in_compilation) = 1;
1238            }
1239
1240            zval_ptr_dtor(&params[4]);
1241            zval_ptr_dtor(&params[3]);
1242            zval_ptr_dtor(&params[2]);
1243            zval_ptr_dtor(&params[1]);
1244            zval_ptr_dtor(&params[0]);
1245
1246            if (Z_TYPE(EG(user_error_handler)) == IS_UNDEF) {
1247                ZVAL_COPY_VALUE(&EG(user_error_handler), &orig_user_error_handler);
1248            } else {
1249                zval_ptr_dtor(&orig_user_error_handler);
1250            }
1251            break;
1252    }
1253
1254#if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1255    va_end(args);
1256#endif
1257
1258    if (type == E_PARSE) {
1259        /* eval() errors do not affect exit_status */
1260        if (!(EG(current_execute_data) &&
1261            EG(current_execute_data)->func &&
1262            ZEND_USER_CODE(EG(current_execute_data)->func->type) &&
1263            EG(current_execute_data)->opline->opcode == ZEND_INCLUDE_OR_EVAL &&
1264            EG(current_execute_data)->opline->extended_value == ZEND_EVAL)) {
1265            EG(exit_status) = 255;
1266        }
1267    }
1268}
1269/* }}} */
1270
1271#ifdef HAVE_NORETURN
1272# ifdef HAVE_NORETURN_ALIAS
1273ZEND_COLD void zend_error_noreturn(int type, const char *format, ...) __attribute__ ((alias("zend_error"),noreturn));
1274# else
1275ZEND_API ZEND_COLD void zend_error(int type, const char *format, ...) /* {{{ */
1276{
1277    va_list va;
1278
1279    va_start(va, format);
1280    zend_error_va_list(type, format, va);
1281    va_end(va);
1282}
1283
1284ZEND_API ZEND_COLD ZEND_NORETURN void zend_error_noreturn(int type, const char *format, ...)
1285{
1286    va_list va;
1287
1288    va_start(va, format);
1289    zend_error_va_list(type, format, va);
1290    va_end(va);
1291}
1292/* }}} */
1293# endif
1294#endif
1295
1296ZEND_API ZEND_COLD void zend_throw_error(zend_class_entry *exception_ce, const char *format, ...) /* {{{ */
1297{
1298    va_list va;
1299    char *message = NULL;
1300
1301    if (exception_ce) {
1302        if (!instanceof_function(exception_ce, zend_ce_error)) {
1303            zend_error(E_NOTICE, "Error exceptions must be derived from Error");
1304            exception_ce = zend_ce_error;
1305        }
1306    } else {
1307        exception_ce = zend_ce_error;
1308    }
1309
1310    va_start(va, format);
1311    zend_vspprintf(&message, 0, format, va);
1312
1313    //TODO: we can't convert compile-time errors to exceptions yet???
1314    if (EG(current_execute_data) && !CG(in_compilation)) {
1315        zend_throw_exception(exception_ce, message, 0);
1316    } else {
1317        zend_error(E_ERROR, message);
1318    }
1319
1320    efree(message);
1321    va_end(va);
1322}
1323/* }}} */
1324
1325ZEND_API ZEND_COLD void zend_type_error(const char *format, ...) /* {{{ */
1326{
1327    va_list va;
1328    char *message = NULL;
1329
1330    va_start(va, format);
1331    zend_vspprintf(&message, 0, format, va);
1332    zend_throw_exception(zend_ce_type_error, message, 0);
1333    efree(message);
1334    va_end(va);
1335} /* }}} */
1336
1337ZEND_API ZEND_COLD void zend_internal_type_error(zend_bool throw_exception, const char *format, ...) /* {{{ */
1338{
1339    va_list va;
1340    char *message = NULL;
1341
1342    va_start(va, format);
1343    zend_vspprintf(&message, 0, format, va);
1344    if (throw_exception) {
1345        zend_throw_exception(zend_ce_type_error, message, 0);
1346    } else {
1347        zend_error(E_WARNING, message);
1348    }
1349    efree(message);
1350
1351    va_end(va);
1352} /* }}} */
1353
1354ZEND_API ZEND_COLD void zend_output_debug_string(zend_bool trigger_break, const char *format, ...) /* {{{ */
1355{
1356#if ZEND_DEBUG
1357    va_list args;
1358
1359    va_start(args, format);
1360#   ifdef ZEND_WIN32
1361    {
1362        char output_buf[1024];
1363
1364        vsnprintf(output_buf, 1024, format, args);
1365        OutputDebugString(output_buf);
1366        OutputDebugString("\n");
1367        if (trigger_break && IsDebuggerPresent()) {
1368            DebugBreak();
1369        }
1370    }
1371#   else
1372    vfprintf(stderr, format, args);
1373    fprintf(stderr, "\n");
1374#   endif
1375    va_end(args);
1376#endif
1377}
1378/* }}} */
1379
1380ZEND_API int zend_execute_scripts(int type, zval *retval, int file_count, ...) /* {{{ */
1381{
1382    va_list files;
1383    int i;
1384    zend_file_handle *file_handle;
1385    zend_op_array *op_array;
1386
1387    va_start(files, file_count);
1388    for (i = 0; i < file_count; i++) {
1389        file_handle = va_arg(files, zend_file_handle *);
1390        if (!file_handle) {
1391            continue;
1392        }
1393
1394        op_array = zend_compile_file(file_handle, type);
1395        if (file_handle->opened_path) {
1396            zend_hash_add_empty_element(&EG(included_files), file_handle->opened_path);
1397        }
1398        zend_destroy_file_handle(file_handle);
1399        if (op_array) {
1400            zend_execute(op_array, retval);
1401            zend_exception_restore();
1402            if (EG(exception)) {
1403                if (Z_TYPE(EG(user_exception_handler)) != IS_UNDEF) {
1404                    zval orig_user_exception_handler;
1405                    zval params[1], retval2;
1406                    zend_object *old_exception;
1407                    old_exception = EG(exception);
1408                    EG(exception) = NULL;
1409                    ZVAL_OBJ(&params[0], old_exception);
1410                    ZVAL_COPY_VALUE(&orig_user_exception_handler, &EG(user_exception_handler));
1411
1412                    if (call_user_function_ex(CG(function_table), NULL, &orig_user_exception_handler, &retval2, 1, params, 1, NULL) == SUCCESS) {
1413                        zval_ptr_dtor(&retval2);
1414                        if (EG(exception)) {
1415                            OBJ_RELEASE(EG(exception));
1416                            EG(exception) = NULL;
1417                        }
1418                        OBJ_RELEASE(old_exception);
1419                    } else {
1420                        EG(exception) = old_exception;
1421                        zend_exception_error(EG(exception), E_ERROR);
1422                    }
1423                } else {
1424                    zend_exception_error(EG(exception), E_ERROR);
1425                }
1426            }
1427            destroy_op_array(op_array);
1428            efree_size(op_array, sizeof(zend_op_array));
1429        } else if (type==ZEND_REQUIRE) {
1430            va_end(files);
1431            return FAILURE;
1432        }
1433    }
1434    va_end(files);
1435
1436    return SUCCESS;
1437}
1438/* }}} */
1439
1440#define COMPILED_STRING_DESCRIPTION_FORMAT "%s(%d) : %s"
1441
1442ZEND_API char *zend_make_compiled_string_description(const char *name) /* {{{ */
1443{
1444    const char *cur_filename;
1445    int cur_lineno;
1446    char *compiled_string_description;
1447
1448    if (zend_is_compiling()) {
1449        cur_filename = ZSTR_VAL(zend_get_compiled_filename());
1450        cur_lineno = zend_get_compiled_lineno();
1451    } else if (zend_is_executing()) {
1452        cur_filename = zend_get_executed_filename();
1453        cur_lineno = zend_get_executed_lineno();
1454    } else {
1455        cur_filename = "Unknown";
1456        cur_lineno = 0;
1457    }
1458
1459    zend_spprintf(&compiled_string_description, 0, COMPILED_STRING_DESCRIPTION_FORMAT, cur_filename, cur_lineno, name);
1460    return compiled_string_description;
1461}
1462/* }}} */
1463
1464void free_estring(char **str_p) /* {{{ */
1465{
1466    efree(*str_p);
1467}
1468/* }}} */
1469
1470void free_string_zval(zval *zv) /* {{{ */
1471{
1472    zend_string *str = Z_PTR_P(zv);
1473    zend_string_release(str);
1474}
1475/* }}} */
1476
1477/*
1478 * Local variables:
1479 * tab-width: 4
1480 * c-basic-offset: 4
1481 * indent-tabs-mode: t
1482 * End:
1483 */
1484