1/*
2   +----------------------------------------------------------------------+
3   | Zend Engine                                                          |
4   +----------------------------------------------------------------------+
5   | Copyright (c) 1998-2018 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@php.net>                                 |
16   |          Zeev Suraski <zeev@php.net>                                 |
17   +----------------------------------------------------------------------+
18*/
19
20#include "zend.h"
21#include "zend_extensions.h"
22#include "zend_modules.h"
23#include "zend_constants.h"
24#include "zend_list.h"
25#include "zend_API.h"
26#include "zend_exceptions.h"
27#include "zend_builtin_functions.h"
28#include "zend_ini.h"
29#include "zend_vm.h"
30#include "zend_dtrace.h"
31#include "zend_virtual_cwd.h"
32#include "zend_smart_str.h"
33#include "zend_smart_string.h"
34#include "zend_cpuinfo.h"
35
36#ifdef ZTS
37ZEND_API int compiler_globals_id;
38ZEND_API int executor_globals_id;
39static HashTable *global_function_table = NULL;
40static HashTable *global_class_table = NULL;
41static HashTable *global_constants_table = NULL;
42static HashTable *global_auto_globals_table = NULL;
43static HashTable *global_persistent_list = NULL;
44ZEND_TSRMLS_CACHE_DEFINE()
45# define GLOBAL_FUNCTION_TABLE		global_function_table
46# define GLOBAL_CLASS_TABLE			global_class_table
47# define GLOBAL_CONSTANTS_TABLE		global_constants_table
48# define GLOBAL_AUTO_GLOBALS_TABLE	global_auto_globals_table
49#else
50# define GLOBAL_FUNCTION_TABLE		CG(function_table)
51# define GLOBAL_CLASS_TABLE			CG(class_table)
52# define GLOBAL_AUTO_GLOBALS_TABLE	CG(auto_globals)
53# define GLOBAL_CONSTANTS_TABLE		EG(zend_constants)
54#endif
55
56ZEND_API zend_utility_values zend_uv;
57ZEND_API zend_bool zend_dtrace_enabled;
58
59/* version information */
60static char *zend_version_info;
61static uint32_t zend_version_info_length;
62#define ZEND_CORE_VERSION_INFO	"Zend Engine v" ZEND_VERSION ", Copyright (c) 1998-2018 Zend Technologies\n"
63#define PRINT_ZVAL_INDENT 4
64
65/* true multithread-shared globals */
66ZEND_API zend_class_entry *zend_standard_class_def = NULL;
67ZEND_API size_t (*zend_printf)(const char *format, ...);
68ZEND_API zend_write_func_t zend_write;
69ZEND_API FILE *(*zend_fopen)(const char *filename, zend_string **opened_path);
70ZEND_API int (*zend_stream_open_function)(const char *filename, zend_file_handle *handle);
71ZEND_API void (*zend_ticks_function)(int ticks);
72ZEND_API void (*zend_interrupt_function)(zend_execute_data *execute_data);
73ZEND_API void (*zend_error_cb)(int type, const char *error_filename, const uint32_t error_lineno, const char *format, va_list args);
74void (*zend_printf_to_smart_string)(smart_string *buf, const char *format, va_list ap);
75void (*zend_printf_to_smart_str)(smart_str *buf, const char *format, va_list ap);
76ZEND_API char *(*zend_getenv)(char *name, size_t name_len);
77ZEND_API zend_string *(*zend_resolve_path)(const char *filename, size_t filename_len);
78ZEND_API int (*zend_post_startup_cb)(void) = NULL;
79
80void (*zend_on_timeout)(int seconds);
81
82static void (*zend_message_dispatcher_p)(zend_long message, const void *data);
83static zval *(*zend_get_configuration_directive_p)(zend_string *name);
84
85#if ZEND_RC_DEBUG
86ZEND_API zend_bool zend_rc_debug = 0;
87#endif
88
89static ZEND_INI_MH(OnUpdateErrorReporting) /* {{{ */
90{
91	if (!new_value) {
92		EG(error_reporting) = E_ALL & ~E_NOTICE & ~E_STRICT & ~E_DEPRECATED;
93	} else {
94		EG(error_reporting) = atoi(ZSTR_VAL(new_value));
95	}
96	return SUCCESS;
97}
98/* }}} */
99
100static ZEND_INI_MH(OnUpdateGCEnabled) /* {{{ */
101{
102	zend_bool val;
103
104	val = zend_ini_parse_bool(new_value);
105	gc_enable(val);
106
107	return SUCCESS;
108}
109/* }}} */
110
111static ZEND_INI_DISP(zend_gc_enabled_displayer_cb) /* {{{ */
112{
113	if (gc_enabled()) {
114		ZEND_PUTS("On");
115	} else {
116		ZEND_PUTS("Off");
117	}
118}
119/* }}} */
120
121
122static ZEND_INI_MH(OnUpdateScriptEncoding) /* {{{ */
123{
124	if (!CG(multibyte)) {
125		return FAILURE;
126	}
127	if (!zend_multibyte_get_functions()) {
128		return SUCCESS;
129	}
130	return zend_multibyte_set_script_encoding_by_string(new_value ? ZSTR_VAL(new_value) : NULL, new_value ? ZSTR_LEN(new_value) : 0);
131}
132/* }}} */
133
134static ZEND_INI_MH(OnUpdateAssertions) /* {{{ */
135{
136	zend_long *p, val;
137#ifndef ZTS
138	char *base = (char *) mh_arg2;
139#else
140	char *base;
141
142	base = (char *) ts_resource(*((int *) mh_arg2));
143#endif
144
145	p = (zend_long *) (base+(size_t) mh_arg1);
146
147	val = zend_atol(ZSTR_VAL(new_value), ZSTR_LEN(new_value));
148
149	if (stage != ZEND_INI_STAGE_STARTUP &&
150	    stage != ZEND_INI_STAGE_SHUTDOWN &&
151	    *p != val &&
152	    (*p < 0 || val < 0)) {
153		zend_error(E_WARNING, "zend.assertions may be completely enabled or disabled only in php.ini");
154		return FAILURE;
155	}
156
157	*p = val;
158	return SUCCESS;
159}
160/* }}} */
161
162ZEND_INI_BEGIN()
163	ZEND_INI_ENTRY("error_reporting",				NULL,		ZEND_INI_ALL,		OnUpdateErrorReporting)
164	STD_ZEND_INI_ENTRY("zend.assertions",				"1",    ZEND_INI_ALL,       OnUpdateAssertions,           assertions,   zend_executor_globals,  executor_globals)
165	ZEND_INI_ENTRY3_EX("zend.enable_gc",				"1",	ZEND_INI_ALL,		OnUpdateGCEnabled, NULL, NULL, NULL, zend_gc_enabled_displayer_cb)
166 	STD_ZEND_INI_BOOLEAN("zend.multibyte", "0", ZEND_INI_PERDIR, OnUpdateBool, multibyte,      zend_compiler_globals, compiler_globals)
167 	ZEND_INI_ENTRY("zend.script_encoding",			NULL,		ZEND_INI_ALL,		OnUpdateScriptEncoding)
168 	STD_ZEND_INI_BOOLEAN("zend.detect_unicode",			"1",	ZEND_INI_ALL,		OnUpdateBool, detect_unicode, zend_compiler_globals, compiler_globals)
169#ifdef ZEND_SIGNALS
170	STD_ZEND_INI_BOOLEAN("zend.signal_check", "0", ZEND_INI_SYSTEM, OnUpdateBool, check, zend_signal_globals_t, zend_signal_globals)
171#endif
172ZEND_INI_END()
173
174ZEND_API size_t zend_vspprintf(char **pbuf, size_t max_len, const char *format, va_list ap) /* {{{ */
175{
176	smart_string buf = {0};
177
178	/* since there are places where (v)spprintf called without checking for null,
179	   a bit of defensive coding here */
180	if (!pbuf) {
181		return 0;
182	}
183
184	zend_printf_to_smart_string(&buf, format, ap);
185
186	if (max_len && buf.len > max_len) {
187		buf.len = max_len;
188	}
189
190	smart_string_0(&buf);
191
192	if (buf.c) {
193		*pbuf = buf.c;
194		return buf.len;
195	} else {
196		*pbuf = estrndup("", 0);
197		return 0;
198	}
199}
200/* }}} */
201
202ZEND_API size_t zend_spprintf(char **message, size_t max_len, const char *format, ...) /* {{{ */
203{
204	va_list arg;
205	size_t len;
206
207	va_start(arg, format);
208	len = zend_vspprintf(message, max_len, format, arg);
209	va_end(arg);
210	return len;
211}
212/* }}} */
213
214ZEND_API size_t zend_spprintf_unchecked(char **message, size_t max_len, const char *format, ...) /* {{{ */
215{
216	va_list arg;
217	size_t len;
218
219	va_start(arg, format);
220	len = zend_vspprintf(message, max_len, format, arg);
221	va_end(arg);
222	return len;
223}
224/* }}} */
225
226ZEND_API zend_string *zend_vstrpprintf(size_t max_len, const char *format, va_list ap) /* {{{ */
227{
228	smart_str buf = {0};
229
230	zend_printf_to_smart_str(&buf, format, ap);
231
232	if (!buf.s) {
233		return ZSTR_EMPTY_ALLOC();
234	}
235
236	if (max_len && ZSTR_LEN(buf.s) > max_len) {
237		ZSTR_LEN(buf.s) = max_len;
238	}
239
240	smart_str_0(&buf);
241	return buf.s;
242}
243/* }}} */
244
245ZEND_API zend_string *zend_strpprintf(size_t max_len, const char *format, ...) /* {{{ */
246{
247	va_list arg;
248	zend_string *str;
249
250	va_start(arg, format);
251	str = zend_vstrpprintf(max_len, format, arg);
252	va_end(arg);
253	return str;
254}
255/* }}} */
256
257ZEND_API zend_string *zend_strpprintf_unchecked(size_t max_len, const char *format, ...) /* {{{ */
258{
259	va_list arg;
260	zend_string *str;
261
262	va_start(arg, format);
263	str = zend_vstrpprintf(max_len, format, arg);
264	va_end(arg);
265	return str;
266}
267/* }}} */
268
269static void zend_print_zval_r_to_buf(smart_str *buf, zval *expr, int indent);
270
271static void print_hash(smart_str *buf, HashTable *ht, int indent, zend_bool is_object) /* {{{ */
272{
273	zval *tmp;
274	zend_string *string_key;
275	zend_ulong num_key;
276	int i;
277
278	for (i = 0; i < indent; i++) {
279		smart_str_appendc(buf, ' ');
280	}
281	smart_str_appends(buf, "(\n");
282	indent += PRINT_ZVAL_INDENT;
283	ZEND_HASH_FOREACH_KEY_VAL_IND(ht, num_key, string_key, tmp) {
284		for (i = 0; i < indent; i++) {
285			smart_str_appendc(buf, ' ');
286		}
287		smart_str_appendc(buf, '[');
288		if (string_key) {
289			if (is_object) {
290				const char *prop_name, *class_name;
291				size_t prop_len;
292				int mangled = zend_unmangle_property_name_ex(string_key, &class_name, &prop_name, &prop_len);
293
294				smart_str_appendl(buf, prop_name, prop_len);
295				if (class_name && mangled == SUCCESS) {
296					if (class_name[0] == '*') {
297						smart_str_appends(buf, ":protected");
298					} else {
299						smart_str_appends(buf, ":");
300						smart_str_appends(buf, class_name);
301						smart_str_appends(buf, ":private");
302					}
303				}
304			} else {
305				smart_str_append(buf, string_key);
306			}
307		} else {
308			smart_str_append_long(buf, num_key);
309		}
310		smart_str_appends(buf, "] => ");
311		zend_print_zval_r_to_buf(buf, tmp, indent+PRINT_ZVAL_INDENT);
312		smart_str_appends(buf, "\n");
313	} ZEND_HASH_FOREACH_END();
314	indent -= PRINT_ZVAL_INDENT;
315	for (i = 0; i < indent; i++) {
316		smart_str_appendc(buf, ' ');
317	}
318	smart_str_appends(buf, ")\n");
319}
320/* }}} */
321
322static void print_flat_hash(HashTable *ht) /* {{{ */
323{
324	zval *tmp;
325	zend_string *string_key;
326	zend_ulong num_key;
327	int i = 0;
328
329	ZEND_HASH_FOREACH_KEY_VAL_IND(ht, num_key, string_key, tmp) {
330		if (i++ > 0) {
331			ZEND_PUTS(",");
332		}
333		ZEND_PUTS("[");
334		if (string_key) {
335			ZEND_WRITE(ZSTR_VAL(string_key), ZSTR_LEN(string_key));
336		} else {
337			zend_printf(ZEND_ULONG_FMT, num_key);
338		}
339		ZEND_PUTS("] => ");
340		zend_print_flat_zval_r(tmp);
341	} ZEND_HASH_FOREACH_END();
342}
343/* }}} */
344
345ZEND_API int zend_make_printable_zval(zval *expr, zval *expr_copy) /* {{{ */
346{
347	if (Z_TYPE_P(expr) == IS_STRING) {
348		return 0;
349	} else {
350		ZVAL_STR(expr_copy, zval_get_string_func(expr));
351		return 1;
352	}
353}
354/* }}} */
355
356ZEND_API size_t zend_print_zval(zval *expr, int indent) /* {{{ */
357{
358	zend_string *tmp_str;
359	zend_string *str = zval_get_tmp_string(expr, &tmp_str);
360	size_t len = ZSTR_LEN(str);
361
362	if (len != 0) {
363		zend_write(ZSTR_VAL(str), len);
364	}
365
366	zend_tmp_string_release(tmp_str);
367	return len;
368}
369/* }}} */
370
371ZEND_API void zend_print_flat_zval_r(zval *expr) /* {{{ */
372{
373	switch (Z_TYPE_P(expr)) {
374		case IS_ARRAY:
375			ZEND_PUTS("Array (");
376			if (!(GC_FLAGS(Z_ARRVAL_P(expr)) & GC_IMMUTABLE)) {
377				if (GC_IS_RECURSIVE(Z_ARRVAL_P(expr))) {
378					ZEND_PUTS(" *RECURSION*");
379					return;
380				}
381				GC_PROTECT_RECURSION(Z_ARRVAL_P(expr));
382			}
383			print_flat_hash(Z_ARRVAL_P(expr));
384			ZEND_PUTS(")");
385			if (!(GC_FLAGS(Z_ARRVAL_P(expr)) & GC_IMMUTABLE)) {
386				GC_UNPROTECT_RECURSION(Z_ARRVAL_P(expr));
387			}
388			break;
389		case IS_OBJECT:
390		{
391			HashTable *properties = NULL;
392			zend_string *class_name = Z_OBJ_HANDLER_P(expr, get_class_name)(Z_OBJ_P(expr));
393			zend_printf("%s Object (", ZSTR_VAL(class_name));
394			zend_string_release_ex(class_name, 0);
395
396			if (GC_IS_RECURSIVE(Z_OBJ_P(expr))) {
397				ZEND_PUTS(" *RECURSION*");
398				return;
399			}
400
401			if (Z_OBJ_HANDLER_P(expr, get_properties)) {
402				properties = Z_OBJPROP_P(expr);
403			}
404			if (properties) {
405				GC_PROTECT_RECURSION(Z_OBJ_P(expr));
406				print_flat_hash(properties);
407				GC_UNPROTECT_RECURSION(Z_OBJ_P(expr));
408			}
409			ZEND_PUTS(")");
410			break;
411		}
412		case IS_REFERENCE:
413			zend_print_flat_zval_r(Z_REFVAL_P(expr));
414			break;
415		default:
416			zend_print_zval(expr, 0);
417			break;
418	}
419}
420/* }}} */
421
422static void zend_print_zval_r_to_buf(smart_str *buf, zval *expr, int indent) /* {{{ */
423{
424	switch (Z_TYPE_P(expr)) {
425		case IS_ARRAY:
426			smart_str_appends(buf, "Array\n");
427			if (!(GC_FLAGS(Z_ARRVAL_P(expr)) & GC_IMMUTABLE)) {
428				if (GC_IS_RECURSIVE(Z_ARRVAL_P(expr))) {
429					smart_str_appends(buf, " *RECURSION*");
430					return;
431				}
432				GC_PROTECT_RECURSION(Z_ARRVAL_P(expr));
433			}
434			print_hash(buf, Z_ARRVAL_P(expr), indent, 0);
435			if (!(GC_FLAGS(Z_ARRVAL_P(expr)) & GC_IMMUTABLE)) {
436				GC_UNPROTECT_RECURSION(Z_ARRVAL_P(expr));
437			}
438			break;
439		case IS_OBJECT:
440			{
441				HashTable *properties;
442				int is_temp;
443
444				zend_string *class_name = Z_OBJ_HANDLER_P(expr, get_class_name)(Z_OBJ_P(expr));
445				smart_str_appends(buf, ZSTR_VAL(class_name));
446				zend_string_release_ex(class_name, 0);
447
448				smart_str_appends(buf, " Object\n");
449				if (GC_IS_RECURSIVE(Z_OBJ_P(expr))) {
450					smart_str_appends(buf, " *RECURSION*");
451					return;
452				}
453				if ((properties = Z_OBJDEBUG_P(expr, is_temp)) == NULL) {
454					break;
455				}
456
457				GC_PROTECT_RECURSION(Z_OBJ_P(expr));
458				print_hash(buf, properties, indent, 1);
459				GC_UNPROTECT_RECURSION(Z_OBJ_P(expr));
460
461				if (is_temp) {
462					zend_hash_destroy(properties);
463					FREE_HASHTABLE(properties);
464				}
465				break;
466			}
467		case IS_LONG:
468			smart_str_append_long(buf, Z_LVAL_P(expr));
469			break;
470		case IS_REFERENCE:
471			zend_print_zval_r_to_buf(buf, Z_REFVAL_P(expr), indent);
472			break;
473		case IS_STRING:
474			smart_str_append(buf, Z_STR_P(expr));
475			break;
476		default:
477			{
478				zend_string *str = zval_get_string_func(expr);
479				smart_str_append(buf, str);
480				zend_string_release_ex(str, 0);
481			}
482			break;
483	}
484}
485/* }}} */
486
487ZEND_API zend_string *zend_print_zval_r_to_str(zval *expr, int indent) /* {{{ */
488{
489	smart_str buf = {0};
490	zend_print_zval_r_to_buf(&buf, expr, indent);
491	smart_str_0(&buf);
492	return buf.s;
493}
494/* }}} */
495
496ZEND_API void zend_print_zval_r(zval *expr, int indent) /* {{{ */
497{
498	zend_string *str = zend_print_zval_r_to_str(expr, indent);
499	zend_write(ZSTR_VAL(str), ZSTR_LEN(str));
500	zend_string_release_ex(str, 0);
501}
502/* }}} */
503
504static FILE *zend_fopen_wrapper(const char *filename, zend_string **opened_path) /* {{{ */
505{
506	if (opened_path) {
507		*opened_path = zend_string_init(filename, strlen(filename), 0);
508	}
509	return fopen(filename, "rb");
510}
511/* }}} */
512
513#ifdef ZTS
514static zend_bool short_tags_default      = 1;
515static uint32_t compiler_options_default = ZEND_COMPILE_DEFAULT;
516#else
517# define short_tags_default			1
518# define compiler_options_default	ZEND_COMPILE_DEFAULT
519#endif
520
521static void zend_set_default_compile_time_values(void) /* {{{ */
522{
523	/* default compile-time values */
524	CG(short_tags) = short_tags_default;
525	CG(compiler_options) = compiler_options_default;
526}
527/* }}} */
528
529#ifdef ZEND_WIN32
530static void zend_get_windows_version_info(OSVERSIONINFOEX *osvi) /* {{{ */
531{
532	ZeroMemory(osvi, sizeof(OSVERSIONINFOEX));
533	osvi->dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
534	if(!GetVersionEx((OSVERSIONINFO *) osvi)) {
535		ZEND_ASSERT(0); /* Should not happen as sizeof is used. */
536	}
537}
538/* }}} */
539#endif
540
541static void zend_init_exception_op(void) /* {{{ */
542{
543	memset(EG(exception_op), 0, sizeof(EG(exception_op)));
544	EG(exception_op)[0].opcode = ZEND_HANDLE_EXCEPTION;
545	ZEND_VM_SET_OPCODE_HANDLER(EG(exception_op));
546	EG(exception_op)[1].opcode = ZEND_HANDLE_EXCEPTION;
547	ZEND_VM_SET_OPCODE_HANDLER(EG(exception_op)+1);
548	EG(exception_op)[2].opcode = ZEND_HANDLE_EXCEPTION;
549	ZEND_VM_SET_OPCODE_HANDLER(EG(exception_op)+2);
550}
551/* }}} */
552
553static void zend_init_call_trampoline_op(void) /* {{{ */
554{
555	memset(&EG(call_trampoline_op), 0, sizeof(EG(call_trampoline_op)));
556	EG(call_trampoline_op).opcode = ZEND_CALL_TRAMPOLINE;
557	ZEND_VM_SET_OPCODE_HANDLER(&EG(call_trampoline_op));
558}
559/* }}} */
560
561static void auto_global_dtor(zval *zv) /* {{{ */
562{
563	free(Z_PTR_P(zv));
564}
565/* }}} */
566
567#ifdef ZTS
568static void function_copy_ctor(zval *zv) /* {{{ */
569{
570	zend_function *old_func = Z_FUNC_P(zv);
571	zend_function *func = pemalloc(sizeof(zend_internal_function), 1);
572
573	Z_FUNC_P(zv) = func;
574	memcpy(func, old_func, sizeof(zend_internal_function));
575	function_add_ref(func);
576	if ((old_func->common.fn_flags & (ZEND_ACC_HAS_RETURN_TYPE|ZEND_ACC_HAS_TYPE_HINTS))
577	 && old_func->common.arg_info) {
578		uint32_t i;
579		uint32_t num_args = old_func->common.num_args + 1;
580		zend_arg_info *arg_info = old_func->common.arg_info - 1;
581		zend_arg_info *new_arg_info;
582
583		if (old_func->common.fn_flags & ZEND_ACC_VARIADIC) {
584			num_args++;
585		}
586		new_arg_info = pemalloc(sizeof(zend_arg_info) * num_args, 1);
587		memcpy(new_arg_info, arg_info, sizeof(zend_arg_info) * num_args);
588		for (i = 0 ; i < num_args; i++) {
589			if (ZEND_TYPE_IS_CLASS(arg_info[i].type)) {
590				zend_string *name = zend_string_dup(ZEND_TYPE_NAME(arg_info[i].type), 1);
591
592				new_arg_info[i].type =
593					ZEND_TYPE_ENCODE_CLASS(
594						name, ZEND_TYPE_ALLOW_NULL(arg_info[i].type));
595			}
596		}
597		func->common.arg_info = new_arg_info + 1;
598	}
599}
600/* }}} */
601
602static void auto_global_copy_ctor(zval *zv) /* {{{ */
603{
604	zend_auto_global *old_ag = (zend_auto_global *) Z_PTR_P(zv);
605	zend_auto_global *new_ag = pemalloc(sizeof(zend_auto_global), 1);
606
607	new_ag->name = old_ag->name;
608	new_ag->auto_global_callback = old_ag->auto_global_callback;
609	new_ag->jit = old_ag->jit;
610
611	Z_PTR_P(zv) = new_ag;
612}
613/* }}} */
614
615static void compiler_globals_ctor(zend_compiler_globals *compiler_globals) /* {{{ */
616{
617	compiler_globals->compiled_filename = NULL;
618
619	compiler_globals->function_table = (HashTable *) malloc(sizeof(HashTable));
620	zend_hash_init_ex(compiler_globals->function_table, 1024, NULL, ZEND_FUNCTION_DTOR, 1, 0);
621	zend_hash_copy(compiler_globals->function_table, global_function_table, function_copy_ctor);
622
623	compiler_globals->class_table = (HashTable *) malloc(sizeof(HashTable));
624	zend_hash_init_ex(compiler_globals->class_table, 64, NULL, ZEND_CLASS_DTOR, 1, 0);
625	zend_hash_copy(compiler_globals->class_table, global_class_table, zend_class_add_ref);
626
627	zend_set_default_compile_time_values();
628
629	compiler_globals->auto_globals = (HashTable *) malloc(sizeof(HashTable));
630	zend_hash_init_ex(compiler_globals->auto_globals, 8, NULL, auto_global_dtor, 1, 0);
631	zend_hash_copy(compiler_globals->auto_globals, global_auto_globals_table, auto_global_copy_ctor);
632
633	compiler_globals->last_static_member = zend_hash_num_elements(compiler_globals->class_table);
634	if (compiler_globals->last_static_member) {
635		compiler_globals->static_members_table = calloc(compiler_globals->last_static_member, sizeof(zval*));
636	} else {
637		compiler_globals->static_members_table = NULL;
638	}
639	compiler_globals->script_encoding_list = NULL;
640}
641/* }}} */
642
643static void compiler_globals_dtor(zend_compiler_globals *compiler_globals) /* {{{ */
644{
645	if (compiler_globals->function_table != GLOBAL_FUNCTION_TABLE) {
646		zend_hash_destroy(compiler_globals->function_table);
647		free(compiler_globals->function_table);
648	}
649	if (compiler_globals->class_table != GLOBAL_CLASS_TABLE) {
650		zend_hash_destroy(compiler_globals->class_table);
651		free(compiler_globals->class_table);
652	}
653	if (compiler_globals->auto_globals != GLOBAL_AUTO_GLOBALS_TABLE) {
654		zend_hash_destroy(compiler_globals->auto_globals);
655		free(compiler_globals->auto_globals);
656	}
657	if (compiler_globals->static_members_table) {
658		free(compiler_globals->static_members_table);
659	}
660	if (compiler_globals->script_encoding_list) {
661		pefree((char*)compiler_globals->script_encoding_list, 1);
662	}
663	compiler_globals->last_static_member = 0;
664}
665/* }}} */
666
667static void executor_globals_ctor(zend_executor_globals *executor_globals) /* {{{ */
668{
669	ZEND_TSRMLS_CACHE_UPDATE();
670
671	zend_startup_constants();
672	zend_copy_constants(executor_globals->zend_constants, GLOBAL_CONSTANTS_TABLE);
673	zend_init_rsrc_plist();
674	zend_init_exception_op();
675	zend_init_call_trampoline_op();
676	memset(&executor_globals->trampoline, 0, sizeof(zend_op_array));
677	executor_globals->lambda_count = 0;
678	ZVAL_UNDEF(&executor_globals->user_error_handler);
679	ZVAL_UNDEF(&executor_globals->user_exception_handler);
680	executor_globals->in_autoload = NULL;
681	executor_globals->current_execute_data = NULL;
682	executor_globals->current_module = NULL;
683	executor_globals->exit_status = 0;
684#if XPFPA_HAVE_CW
685	executor_globals->saved_fpu_cw = 0;
686#endif
687	executor_globals->saved_fpu_cw_ptr = NULL;
688	executor_globals->active = 0;
689	executor_globals->bailout = NULL;
690	executor_globals->error_handling  = EH_NORMAL;
691	executor_globals->exception_class = NULL;
692	executor_globals->exception = NULL;
693	executor_globals->objects_store.object_buckets = NULL;
694#ifdef ZEND_WIN32
695	zend_get_windows_version_info(&executor_globals->windows_version_info);
696#endif
697	executor_globals->flags = EG_FLAGS_INITIAL;
698}
699/* }}} */
700
701static void executor_globals_dtor(zend_executor_globals *executor_globals) /* {{{ */
702{
703	zend_ini_dtor(executor_globals->ini_directives);
704
705	if (&executor_globals->persistent_list != global_persistent_list) {
706		zend_destroy_rsrc_list(&executor_globals->persistent_list);
707	}
708	if (executor_globals->zend_constants != GLOBAL_CONSTANTS_TABLE) {
709		zend_hash_destroy(executor_globals->zend_constants);
710		free(executor_globals->zend_constants);
711	}
712}
713/* }}} */
714
715static void zend_new_thread_end_handler(THREAD_T thread_id) /* {{{ */
716{
717	if (zend_copy_ini_directives() == SUCCESS) {
718		zend_ini_refresh_caches(ZEND_INI_STAGE_STARTUP);
719	}
720}
721/* }}} */
722#endif
723
724#if defined(__FreeBSD__) || defined(__DragonFly__)
725/* FreeBSD and DragonFly floating point precision fix */
726#include <floatingpoint.h>
727#endif
728
729static void ini_scanner_globals_ctor(zend_ini_scanner_globals *scanner_globals_p) /* {{{ */
730{
731	memset(scanner_globals_p, 0, sizeof(*scanner_globals_p));
732}
733/* }}} */
734
735static void php_scanner_globals_ctor(zend_php_scanner_globals *scanner_globals_p) /* {{{ */
736{
737	memset(scanner_globals_p, 0, sizeof(*scanner_globals_p));
738}
739/* }}} */
740
741static void module_destructor_zval(zval *zv) /* {{{ */
742{
743	zend_module_entry *module = (zend_module_entry*)Z_PTR_P(zv);
744
745	module_destructor(module);
746	free(module);
747}
748/* }}} */
749
750static zend_bool php_auto_globals_create_globals(zend_string *name) /* {{{ */
751{
752	zval globals;
753
754	/* IS_ARRAY, but with ref-counter 1 and not IS_TYPE_REFCOUNTED */
755	ZVAL_ARR(&globals, &EG(symbol_table));
756	Z_TYPE_FLAGS_P(&globals) = 0;
757	ZVAL_NEW_REF(&globals, &globals);
758	zend_hash_update(&EG(symbol_table), name, &globals);
759	return 0;
760}
761/* }}} */
762
763int zend_startup(zend_utility_functions *utility_functions, char **extensions) /* {{{ */
764{
765#ifdef ZTS
766	zend_compiler_globals *compiler_globals;
767	zend_executor_globals *executor_globals;
768	extern ZEND_API ts_rsrc_id ini_scanner_globals_id;
769	extern ZEND_API ts_rsrc_id language_scanner_globals_id;
770	ZEND_TSRMLS_CACHE_UPDATE();
771#else
772	extern zend_ini_scanner_globals ini_scanner_globals;
773	extern zend_php_scanner_globals language_scanner_globals;
774#endif
775
776	zend_cpu_startup();
777
778#ifdef ZEND_WIN32
779	php_win32_cp_set_by_id(65001);
780#endif
781
782	start_memory_manager();
783
784	virtual_cwd_startup(); /* Could use shutdown to free the main cwd but it would just slow it down for CGI */
785
786#if defined(__FreeBSD__) || defined(__DragonFly__)
787	/* FreeBSD and DragonFly floating point precision fix */
788	fpsetmask(0);
789#endif
790
791	zend_startup_strtod();
792	zend_startup_extensions_mechanism();
793
794	/* Set up utility functions and values */
795	zend_error_cb = utility_functions->error_function;
796	zend_printf = utility_functions->printf_function;
797	zend_write = (zend_write_func_t) utility_functions->write_function;
798	zend_fopen = utility_functions->fopen_function;
799	if (!zend_fopen) {
800		zend_fopen = zend_fopen_wrapper;
801	}
802	zend_stream_open_function = utility_functions->stream_open_function;
803	zend_message_dispatcher_p = utility_functions->message_handler;
804	zend_get_configuration_directive_p = utility_functions->get_configuration_directive;
805	zend_ticks_function = utility_functions->ticks_function;
806	zend_on_timeout = utility_functions->on_timeout;
807	zend_printf_to_smart_string = utility_functions->printf_to_smart_string_function;
808	zend_printf_to_smart_str = utility_functions->printf_to_smart_str_function;
809	zend_getenv = utility_functions->getenv_function;
810	zend_resolve_path = utility_functions->resolve_path_function;
811
812	zend_interrupt_function = NULL;
813
814#if HAVE_DTRACE
815/* build with dtrace support */
816	{
817		char *tmp = getenv("USE_ZEND_DTRACE");
818
819		if (tmp && zend_atoi(tmp, 0)) {
820			zend_dtrace_enabled = 1;
821			zend_compile_file = dtrace_compile_file;
822			zend_execute_ex = dtrace_execute_ex;
823			zend_execute_internal = dtrace_execute_internal;
824		} else {
825			zend_compile_file = compile_file;
826			zend_execute_ex = execute_ex;
827			zend_execute_internal = NULL;
828		}
829	}
830#else
831	zend_compile_file = compile_file;
832	zend_execute_ex = execute_ex;
833	zend_execute_internal = NULL;
834#endif /* HAVE_DTRACE */
835	zend_compile_string = compile_string;
836	zend_throw_exception_hook = NULL;
837
838	/* Set up the default garbage collection implementation. */
839	gc_collect_cycles = zend_gc_collect_cycles;
840
841	zend_vm_init();
842
843	/* set up version */
844	zend_version_info = strdup(ZEND_CORE_VERSION_INFO);
845	zend_version_info_length = sizeof(ZEND_CORE_VERSION_INFO) - 1;
846
847	GLOBAL_FUNCTION_TABLE = (HashTable *) malloc(sizeof(HashTable));
848	GLOBAL_CLASS_TABLE = (HashTable *) malloc(sizeof(HashTable));
849	GLOBAL_AUTO_GLOBALS_TABLE = (HashTable *) malloc(sizeof(HashTable));
850	GLOBAL_CONSTANTS_TABLE = (HashTable *) malloc(sizeof(HashTable));
851
852	zend_hash_init_ex(GLOBAL_FUNCTION_TABLE, 1024, NULL, ZEND_FUNCTION_DTOR, 1, 0);
853	zend_hash_init_ex(GLOBAL_CLASS_TABLE, 64, NULL, ZEND_CLASS_DTOR, 1, 0);
854	zend_hash_init_ex(GLOBAL_AUTO_GLOBALS_TABLE, 8, NULL, auto_global_dtor, 1, 0);
855	zend_hash_init_ex(GLOBAL_CONSTANTS_TABLE, 128, NULL, ZEND_CONSTANT_DTOR, 1, 0);
856
857	zend_hash_init_ex(&module_registry, 32, NULL, module_destructor_zval, 1, 0);
858	zend_init_rsrc_list_dtors();
859
860#ifdef ZTS
861	ts_allocate_id(&compiler_globals_id, sizeof(zend_compiler_globals), (ts_allocate_ctor) compiler_globals_ctor, (ts_allocate_dtor) compiler_globals_dtor);
862	ts_allocate_id(&executor_globals_id, sizeof(zend_executor_globals), (ts_allocate_ctor) executor_globals_ctor, (ts_allocate_dtor) executor_globals_dtor);
863	ts_allocate_id(&language_scanner_globals_id, sizeof(zend_php_scanner_globals), (ts_allocate_ctor) php_scanner_globals_ctor, NULL);
864	ts_allocate_id(&ini_scanner_globals_id, sizeof(zend_ini_scanner_globals), (ts_allocate_ctor) ini_scanner_globals_ctor, NULL);
865	compiler_globals = ts_resource(compiler_globals_id);
866	executor_globals = ts_resource(executor_globals_id);
867
868	compiler_globals_dtor(compiler_globals);
869	compiler_globals->in_compilation = 0;
870	compiler_globals->function_table = (HashTable *) malloc(sizeof(HashTable));
871	compiler_globals->class_table = (HashTable *) malloc(sizeof(HashTable));
872
873	*compiler_globals->function_table = *GLOBAL_FUNCTION_TABLE;
874	*compiler_globals->class_table = *GLOBAL_CLASS_TABLE;
875	compiler_globals->auto_globals = GLOBAL_AUTO_GLOBALS_TABLE;
876
877	zend_hash_destroy(executor_globals->zend_constants);
878	*executor_globals->zend_constants = *GLOBAL_CONSTANTS_TABLE;
879#else
880	ini_scanner_globals_ctor(&ini_scanner_globals);
881	php_scanner_globals_ctor(&language_scanner_globals);
882	zend_set_default_compile_time_values();
883#ifdef ZEND_WIN32
884	zend_get_windows_version_info(&EG(windows_version_info));
885#endif
886#endif
887	EG(error_reporting) = E_ALL & ~E_NOTICE;
888
889	zend_interned_strings_init();
890	zend_startup_builtin_functions();
891	zend_register_standard_constants();
892	zend_register_auto_global(zend_string_init_interned("GLOBALS", sizeof("GLOBALS") - 1, 1), 1, php_auto_globals_create_globals);
893
894#ifndef ZTS
895	zend_init_rsrc_plist();
896	zend_init_exception_op();
897	zend_init_call_trampoline_op();
898#endif
899
900	zend_ini_startup();
901
902#ifdef ZEND_WIN32
903	/* Uses INI settings, so needs to be run after it. */
904	php_win32_cp_setup();
905#endif
906
907#ifdef ZTS
908	tsrm_set_new_thread_end_handler(zend_new_thread_end_handler);
909	tsrm_set_shutdown_handler(zend_interned_strings_dtor);
910#endif
911
912	return SUCCESS;
913}
914/* }}} */
915
916void zend_register_standard_ini_entries(void) /* {{{ */
917{
918	int module_number = 0;
919
920	REGISTER_INI_ENTRIES();
921}
922/* }}} */
923
924/* Unlink the global (r/o) copies of the class, function and constant tables,
925 * and use a fresh r/w copy for the startup thread
926 */
927int zend_post_startup(void) /* {{{ */
928{
929#ifdef ZTS
930	zend_encoding **script_encoding_list;
931
932	zend_compiler_globals *compiler_globals = ts_resource(compiler_globals_id);
933	zend_executor_globals *executor_globals = ts_resource(executor_globals_id);
934
935	*GLOBAL_FUNCTION_TABLE = *compiler_globals->function_table;
936	*GLOBAL_CLASS_TABLE = *compiler_globals->class_table;
937	*GLOBAL_CONSTANTS_TABLE = *executor_globals->zend_constants;
938
939	short_tags_default = CG(short_tags);
940	compiler_options_default = CG(compiler_options);
941
942	zend_destroy_rsrc_list(&EG(persistent_list));
943	free(compiler_globals->function_table);
944	free(compiler_globals->class_table);
945	if ((script_encoding_list = (zend_encoding **)compiler_globals->script_encoding_list)) {
946		compiler_globals_ctor(compiler_globals);
947		compiler_globals->script_encoding_list = (const zend_encoding **)script_encoding_list;
948	} else {
949		compiler_globals_ctor(compiler_globals);
950	}
951	free(EG(zend_constants));
952
953	executor_globals_ctor(executor_globals);
954	global_persistent_list = &EG(persistent_list);
955	zend_copy_ini_directives();
956#endif
957
958	if (zend_post_startup_cb) {
959		int (*cb)(void) = zend_post_startup_cb;
960
961		zend_post_startup_cb = NULL;
962		if (cb() != SUCCESS) {
963			return FAILURE;
964		}
965	}
966
967	return SUCCESS;
968}
969/* }}} */
970
971void zend_shutdown(void) /* {{{ */
972{
973	zend_vm_dtor();
974
975	zend_destroy_rsrc_list(&EG(persistent_list));
976	zend_destroy_modules();
977
978	virtual_cwd_deactivate();
979	virtual_cwd_shutdown();
980
981	zend_hash_destroy(GLOBAL_FUNCTION_TABLE);
982	zend_hash_destroy(GLOBAL_CLASS_TABLE);
983
984	zend_hash_destroy(GLOBAL_AUTO_GLOBALS_TABLE);
985	free(GLOBAL_AUTO_GLOBALS_TABLE);
986
987	zend_shutdown_extensions();
988	free(zend_version_info);
989
990	free(GLOBAL_FUNCTION_TABLE);
991	free(GLOBAL_CLASS_TABLE);
992
993	zend_hash_destroy(GLOBAL_CONSTANTS_TABLE);
994	free(GLOBAL_CONSTANTS_TABLE);
995	zend_shutdown_strtod();
996
997#ifdef ZTS
998	GLOBAL_FUNCTION_TABLE = NULL;
999	GLOBAL_CLASS_TABLE = NULL;
1000	GLOBAL_AUTO_GLOBALS_TABLE = NULL;
1001	GLOBAL_CONSTANTS_TABLE = NULL;
1002#endif
1003	zend_destroy_rsrc_list_dtors();
1004}
1005/* }}} */
1006
1007void zend_set_utility_values(zend_utility_values *utility_values) /* {{{ */
1008{
1009	zend_uv = *utility_values;
1010	zend_uv.import_use_extension_length = (uint32_t)strlen(zend_uv.import_use_extension);
1011}
1012/* }}} */
1013
1014/* this should be compatible with the standard zenderror */
1015ZEND_COLD void zenderror(const char *error) /* {{{ */
1016{
1017	CG(parse_error) = 0;
1018
1019	if (EG(exception)) {
1020		/* An exception was thrown in the lexer, don't throw another in the parser. */
1021		return;
1022	}
1023
1024	zend_throw_exception(zend_ce_parse_error, error, 0);
1025}
1026/* }}} */
1027
1028BEGIN_EXTERN_C()
1029ZEND_API ZEND_COLD void _zend_bailout(const char *filename, uint32_t lineno) /* {{{ */
1030{
1031
1032	if (!EG(bailout)) {
1033		zend_output_debug_string(1, "%s(%d) : Bailed out without a bailout address!", filename, lineno);
1034		exit(-1);
1035	}
1036	gc_protect(1);
1037	CG(unclean_shutdown) = 1;
1038	CG(active_class_entry) = NULL;
1039	CG(in_compilation) = 0;
1040	EG(current_execute_data) = NULL;
1041	LONGJMP(*EG(bailout), FAILURE);
1042}
1043/* }}} */
1044END_EXTERN_C()
1045
1046ZEND_API void zend_append_version_info(const zend_extension *extension) /* {{{ */
1047{
1048	char *new_info;
1049	uint32_t new_info_length;
1050
1051	new_info_length = (uint32_t)(sizeof("    with  v, , by \n")
1052						+ strlen(extension->name)
1053						+ strlen(extension->version)
1054						+ strlen(extension->copyright)
1055						+ strlen(extension->author));
1056
1057	new_info = (char *) malloc(new_info_length + 1);
1058
1059	snprintf(new_info, new_info_length, "    with %s v%s, %s, by %s\n", extension->name, extension->version, extension->copyright, extension->author);
1060
1061	zend_version_info = (char *) realloc(zend_version_info, zend_version_info_length+new_info_length + 1);
1062	strncat(zend_version_info, new_info, new_info_length);
1063	zend_version_info_length += new_info_length;
1064	free(new_info);
1065}
1066/* }}} */
1067
1068ZEND_API char *get_zend_version(void) /* {{{ */
1069{
1070	return zend_version_info;
1071}
1072/* }}} */
1073
1074ZEND_API void zend_activate(void) /* {{{ */
1075{
1076#ifdef ZTS
1077	virtual_cwd_activate();
1078#endif
1079	gc_reset();
1080	init_compiler();
1081	init_executor();
1082	startup_scanner();
1083}
1084/* }}} */
1085
1086void zend_call_destructors(void) /* {{{ */
1087{
1088	zend_try {
1089		shutdown_destructors();
1090	} zend_end_try();
1091}
1092/* }}} */
1093
1094ZEND_API void zend_deactivate(void) /* {{{ */
1095{
1096	/* we're no longer executing anything */
1097	EG(current_execute_data) = NULL;
1098
1099	zend_try {
1100		shutdown_scanner();
1101	} zend_end_try();
1102
1103	/* shutdown_executor() takes care of its own bailout handling */
1104	shutdown_executor();
1105
1106	zend_try {
1107		zend_ini_deactivate();
1108	} zend_end_try();
1109
1110	zend_try {
1111		shutdown_compiler();
1112	} zend_end_try();
1113
1114	zend_destroy_rsrc_list(&EG(regular_list));
1115
1116#if GC_BENCH
1117	fprintf(stderr, "GC Statistics\n");
1118	fprintf(stderr, "-------------\n");
1119	fprintf(stderr, "Runs:               %d\n", GC_G(gc_runs));
1120	fprintf(stderr, "Collected:          %d\n", GC_G(collected));
1121	fprintf(stderr, "Root buffer length: %d\n", GC_G(root_buf_length));
1122	fprintf(stderr, "Root buffer peak:   %d\n\n", GC_G(root_buf_peak));
1123	fprintf(stderr, "      Possible            Remove from  Marked\n");
1124	fprintf(stderr, "        Root    Buffered     buffer     grey\n");
1125	fprintf(stderr, "      --------  --------  -----------  ------\n");
1126	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));
1127#endif
1128}
1129/* }}} */
1130
1131BEGIN_EXTERN_C()
1132ZEND_API void zend_message_dispatcher(zend_long message, const void *data) /* {{{ */
1133{
1134	if (zend_message_dispatcher_p) {
1135		zend_message_dispatcher_p(message, data);
1136	}
1137}
1138/* }}} */
1139END_EXTERN_C()
1140
1141ZEND_API zval *zend_get_configuration_directive(zend_string *name) /* {{{ */
1142{
1143	if (zend_get_configuration_directive_p) {
1144		return zend_get_configuration_directive_p(name);
1145	} else {
1146		return NULL;
1147	}
1148}
1149/* }}} */
1150
1151#define SAVE_STACK(stack) do { \
1152		if (CG(stack).top) { \
1153			memcpy(&stack, &CG(stack), sizeof(zend_stack)); \
1154			CG(stack).top = CG(stack).max = 0; \
1155			CG(stack).elements = NULL; \
1156		} else { \
1157			stack.top = 0; \
1158		} \
1159	} while (0)
1160
1161#define RESTORE_STACK(stack) do { \
1162		if (stack.top) { \
1163			zend_stack_destroy(&CG(stack)); \
1164			memcpy(&CG(stack), &stack, sizeof(zend_stack)); \
1165		} \
1166	} while (0)
1167
1168#if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1169ZEND_API ZEND_COLD void zend_error(int type, const char *format, ...) /* {{{ */
1170#else
1171static ZEND_COLD void zend_error_va_list(int type, const char *format, va_list args)
1172#endif
1173{
1174#if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1175	va_list args;
1176#endif
1177	va_list usr_copy;
1178	zval params[5];
1179	zval retval;
1180	const char *error_filename;
1181	uint32_t error_lineno = 0;
1182	zval orig_user_error_handler;
1183	zend_bool in_compilation;
1184	zend_class_entry *saved_class_entry;
1185	zend_stack loop_var_stack;
1186	zend_stack delayed_oplines_stack;
1187	zend_array *symbol_table;
1188	zend_class_entry *orig_fake_scope;
1189
1190	/* Report about uncaught exception in case of fatal errors */
1191	if (EG(exception)) {
1192		zend_execute_data *ex;
1193		const zend_op *opline;
1194
1195		switch (type) {
1196			case E_CORE_ERROR:
1197			case E_ERROR:
1198			case E_RECOVERABLE_ERROR:
1199			case E_PARSE:
1200			case E_COMPILE_ERROR:
1201			case E_USER_ERROR:
1202				ex = EG(current_execute_data);
1203				opline = NULL;
1204				while (ex && (!ex->func || !ZEND_USER_CODE(ex->func->type))) {
1205					ex = ex->prev_execute_data;
1206				}
1207				if (ex && ex->opline->opcode == ZEND_HANDLE_EXCEPTION &&
1208				    EG(opline_before_exception)) {
1209					opline = EG(opline_before_exception);
1210				}
1211				zend_exception_error(EG(exception), E_WARNING);
1212				EG(exception) = NULL;
1213				if (opline) {
1214					ex->opline = opline;
1215				}
1216				break;
1217			default:
1218				break;
1219		}
1220	}
1221
1222	/* Obtain relevant filename and lineno */
1223	switch (type) {
1224		case E_CORE_ERROR:
1225		case E_CORE_WARNING:
1226			error_filename = NULL;
1227			error_lineno = 0;
1228			break;
1229		case E_PARSE:
1230		case E_COMPILE_ERROR:
1231		case E_COMPILE_WARNING:
1232		case E_ERROR:
1233		case E_NOTICE:
1234		case E_STRICT:
1235		case E_DEPRECATED:
1236		case E_WARNING:
1237		case E_USER_ERROR:
1238		case E_USER_WARNING:
1239		case E_USER_NOTICE:
1240		case E_USER_DEPRECATED:
1241		case E_RECOVERABLE_ERROR:
1242			if (zend_is_compiling()) {
1243				error_filename = ZSTR_VAL(zend_get_compiled_filename());
1244				error_lineno = zend_get_compiled_lineno();
1245			} else if (zend_is_executing()) {
1246				error_filename = zend_get_executed_filename();
1247				if (error_filename[0] == '[') { /* [no active file] */
1248					error_filename = NULL;
1249					error_lineno = 0;
1250				} else {
1251					error_lineno = zend_get_executed_lineno();
1252				}
1253			} else {
1254				error_filename = NULL;
1255				error_lineno = 0;
1256			}
1257			break;
1258		default:
1259			error_filename = NULL;
1260			error_lineno = 0;
1261			break;
1262	}
1263	if (!error_filename) {
1264		error_filename = "Unknown";
1265	}
1266
1267#ifdef HAVE_DTRACE
1268	if (DTRACE_ERROR_ENABLED()) {
1269		char *dtrace_error_buffer;
1270#if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1271		va_start(args, format);
1272#endif
1273		zend_vspprintf(&dtrace_error_buffer, 0, format, args);
1274		DTRACE_ERROR(dtrace_error_buffer, (char *)error_filename, error_lineno);
1275		efree(dtrace_error_buffer);
1276#if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1277		va_end(args);
1278#endif
1279	}
1280#endif /* HAVE_DTRACE */
1281
1282#if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1283	va_start(args, format);
1284#endif
1285
1286	/* if we don't have a user defined error handler */
1287	if (Z_TYPE(EG(user_error_handler)) == IS_UNDEF
1288		|| !(EG(user_error_handler_error_reporting) & type)
1289		|| EG(error_handling) != EH_NORMAL) {
1290		zend_error_cb(type, error_filename, error_lineno, format, args);
1291	} else switch (type) {
1292		case E_ERROR:
1293		case E_PARSE:
1294		case E_CORE_ERROR:
1295		case E_CORE_WARNING:
1296		case E_COMPILE_ERROR:
1297		case E_COMPILE_WARNING:
1298			/* The error may not be safe to handle in user-space */
1299			zend_error_cb(type, error_filename, error_lineno, format, args);
1300			break;
1301		default:
1302			/* Handle the error in user space */
1303			va_copy(usr_copy, args);
1304			ZVAL_STR(&params[1], zend_vstrpprintf(0, format, usr_copy));
1305			va_end(usr_copy);
1306
1307			ZVAL_LONG(&params[0], type);
1308
1309			if (error_filename) {
1310				ZVAL_STRING(&params[2], error_filename);
1311			} else {
1312				ZVAL_NULL(&params[2]);
1313			}
1314
1315			ZVAL_LONG(&params[3], error_lineno);
1316
1317			symbol_table = zend_rebuild_symbol_table();
1318
1319			/* during shutdown the symbol table table can be still null */
1320			if (!symbol_table) {
1321				ZVAL_NULL(&params[4]);
1322			} else {
1323				ZVAL_ARR(&params[4], zend_array_dup(symbol_table));
1324			}
1325
1326			ZVAL_COPY_VALUE(&orig_user_error_handler, &EG(user_error_handler));
1327			ZVAL_UNDEF(&EG(user_error_handler));
1328
1329			/* User error handler may include() additinal PHP files.
1330			 * If an error was generated during comilation PHP will compile
1331			 * such scripts recursivly, but some CG() variables may be
1332			 * inconsistent. */
1333
1334			in_compilation = CG(in_compilation);
1335			if (in_compilation) {
1336				saved_class_entry = CG(active_class_entry);
1337				CG(active_class_entry) = NULL;
1338				SAVE_STACK(loop_var_stack);
1339				SAVE_STACK(delayed_oplines_stack);
1340				CG(in_compilation) = 0;
1341			}
1342
1343			orig_fake_scope = EG(fake_scope);
1344			EG(fake_scope) = NULL;
1345
1346			if (call_user_function(CG(function_table), NULL, &orig_user_error_handler, &retval, 5, params) == SUCCESS) {
1347				if (Z_TYPE(retval) != IS_UNDEF) {
1348					if (Z_TYPE(retval) == IS_FALSE) {
1349						zend_error_cb(type, error_filename, error_lineno, format, args);
1350					}
1351					zval_ptr_dtor(&retval);
1352				}
1353			} else if (!EG(exception)) {
1354				/* The user error handler failed, use built-in error handler */
1355				zend_error_cb(type, error_filename, error_lineno, format, args);
1356			}
1357
1358			EG(fake_scope) = orig_fake_scope;
1359
1360			if (in_compilation) {
1361				CG(active_class_entry) = saved_class_entry;
1362				RESTORE_STACK(loop_var_stack);
1363				RESTORE_STACK(delayed_oplines_stack);
1364				CG(in_compilation) = 1;
1365			}
1366
1367			zval_ptr_dtor(&params[4]);
1368			zval_ptr_dtor(&params[2]);
1369			zval_ptr_dtor(&params[1]);
1370
1371			if (Z_TYPE(EG(user_error_handler)) == IS_UNDEF) {
1372				ZVAL_COPY_VALUE(&EG(user_error_handler), &orig_user_error_handler);
1373			} else {
1374				zval_ptr_dtor(&orig_user_error_handler);
1375			}
1376			break;
1377	}
1378
1379#if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1380	va_end(args);
1381#endif
1382
1383	if (type == E_PARSE) {
1384		/* eval() errors do not affect exit_status */
1385		if (!(EG(current_execute_data) &&
1386			EG(current_execute_data)->func &&
1387			ZEND_USER_CODE(EG(current_execute_data)->func->type) &&
1388			EG(current_execute_data)->opline->opcode == ZEND_INCLUDE_OR_EVAL &&
1389			EG(current_execute_data)->opline->extended_value == ZEND_EVAL)) {
1390			EG(exit_status) = 255;
1391		}
1392	}
1393}
1394/* }}} */
1395
1396#ifdef HAVE_NORETURN
1397# ifdef HAVE_NORETURN_ALIAS
1398ZEND_COLD void zend_error_noreturn(int type, const char *format, ...) __attribute__ ((alias("zend_error"),noreturn));
1399# else
1400ZEND_API ZEND_COLD void zend_error(int type, const char *format, ...) /* {{{ */
1401{
1402	va_list va;
1403
1404	va_start(va, format);
1405	zend_error_va_list(type, format, va);
1406	va_end(va);
1407}
1408
1409ZEND_API ZEND_COLD ZEND_NORETURN void zend_error_noreturn(int type, const char *format, ...)
1410{
1411	va_list va;
1412
1413	va_start(va, format);
1414	zend_error_va_list(type, format, va);
1415	va_end(va);
1416}
1417/* }}} */
1418# endif
1419#endif
1420
1421ZEND_API ZEND_COLD void zend_throw_error(zend_class_entry *exception_ce, const char *format, ...) /* {{{ */
1422{
1423	va_list va;
1424	char *message = NULL;
1425
1426	if (exception_ce) {
1427		if (!instanceof_function(exception_ce, zend_ce_error)) {
1428			zend_error(E_NOTICE, "Error exceptions must be derived from Error");
1429			exception_ce = zend_ce_error;
1430		}
1431	} else {
1432		exception_ce = zend_ce_error;
1433	}
1434
1435	va_start(va, format);
1436	zend_vspprintf(&message, 0, format, va);
1437
1438	//TODO: we can't convert compile-time errors to exceptions yet???
1439	if (EG(current_execute_data) && !CG(in_compilation)) {
1440		zend_throw_exception(exception_ce, message, 0);
1441	} else {
1442		zend_error(E_ERROR, "%s", message);
1443	}
1444
1445	efree(message);
1446	va_end(va);
1447}
1448/* }}} */
1449
1450ZEND_API ZEND_COLD void zend_type_error(const char *format, ...) /* {{{ */
1451{
1452	va_list va;
1453	char *message = NULL;
1454
1455	va_start(va, format);
1456	zend_vspprintf(&message, 0, format, va);
1457	zend_throw_exception(zend_ce_type_error, message, 0);
1458	efree(message);
1459	va_end(va);
1460} /* }}} */
1461
1462ZEND_API ZEND_COLD void zend_internal_type_error(zend_bool throw_exception, const char *format, ...) /* {{{ */
1463{
1464	va_list va;
1465	char *message = NULL;
1466
1467	va_start(va, format);
1468	zend_vspprintf(&message, 0, format, va);
1469	if (throw_exception) {
1470		zend_throw_exception(zend_ce_type_error, message, 0);
1471	} else {
1472		zend_error(E_WARNING, "%s", message);
1473	}
1474	efree(message);
1475
1476	va_end(va);
1477} /* }}} */
1478
1479ZEND_API ZEND_COLD void zend_internal_argument_count_error(zend_bool throw_exception, const char *format, ...) /* {{{ */
1480{
1481	va_list va;
1482	char *message = NULL;
1483
1484	va_start(va, format);
1485	zend_vspprintf(&message, 0, format, va);
1486	if (throw_exception) {
1487		zend_throw_exception(zend_ce_argument_count_error, message, 0);
1488	} else {
1489		zend_error(E_WARNING, "%s", message);
1490	}
1491	efree(message);
1492
1493	va_end(va);
1494} /* }}} */
1495
1496ZEND_API ZEND_COLD void zend_output_debug_string(zend_bool trigger_break, const char *format, ...) /* {{{ */
1497{
1498#if ZEND_DEBUG
1499	va_list args;
1500
1501	va_start(args, format);
1502#	ifdef ZEND_WIN32
1503	{
1504		char output_buf[1024];
1505
1506		vsnprintf(output_buf, 1024, format, args);
1507		OutputDebugString(output_buf);
1508		OutputDebugString("\n");
1509		if (trigger_break && IsDebuggerPresent()) {
1510			DebugBreak();
1511		}
1512	}
1513#	else
1514	vfprintf(stderr, format, args);
1515	fprintf(stderr, "\n");
1516#	endif
1517	va_end(args);
1518#endif
1519}
1520/* }}} */
1521
1522ZEND_API void zend_try_exception_handler() /* {{{ */
1523{
1524	if (EG(exception)) {
1525		if (Z_TYPE(EG(user_exception_handler)) != IS_UNDEF) {
1526			zval orig_user_exception_handler;
1527			zval params[1], retval2;
1528			zend_object *old_exception;
1529			old_exception = EG(exception);
1530			EG(exception) = NULL;
1531			ZVAL_OBJ(&params[0], old_exception);
1532			ZVAL_COPY_VALUE(&orig_user_exception_handler, &EG(user_exception_handler));
1533
1534			if (call_user_function(CG(function_table), NULL, &orig_user_exception_handler, &retval2, 1, params) == SUCCESS) {
1535				zval_ptr_dtor(&retval2);
1536				if (EG(exception)) {
1537					OBJ_RELEASE(EG(exception));
1538					EG(exception) = NULL;
1539				}
1540				OBJ_RELEASE(old_exception);
1541			} else {
1542				EG(exception) = old_exception;
1543			}
1544		}
1545	}
1546} /* }}} */
1547
1548ZEND_API int zend_execute_scripts(int type, zval *retval, int file_count, ...) /* {{{ */
1549{
1550	va_list files;
1551	int i;
1552	zend_file_handle *file_handle;
1553	zend_op_array *op_array;
1554
1555	va_start(files, file_count);
1556	for (i = 0; i < file_count; i++) {
1557		file_handle = va_arg(files, zend_file_handle *);
1558		if (!file_handle) {
1559			continue;
1560		}
1561
1562		op_array = zend_compile_file(file_handle, type);
1563		if (file_handle->opened_path) {
1564			zend_hash_add_empty_element(&EG(included_files), file_handle->opened_path);
1565		}
1566		zend_destroy_file_handle(file_handle);
1567		if (op_array) {
1568			zend_execute(op_array, retval);
1569			zend_exception_restore();
1570			zend_try_exception_handler();
1571			if (EG(exception)) {
1572				zend_exception_error(EG(exception), E_ERROR);
1573			}
1574			destroy_op_array(op_array);
1575			efree_size(op_array, sizeof(zend_op_array));
1576		} else if (type==ZEND_REQUIRE) {
1577			va_end(files);
1578			return FAILURE;
1579		}
1580	}
1581	va_end(files);
1582
1583	return SUCCESS;
1584}
1585/* }}} */
1586
1587#define COMPILED_STRING_DESCRIPTION_FORMAT "%s(%d) : %s"
1588
1589ZEND_API char *zend_make_compiled_string_description(const char *name) /* {{{ */
1590{
1591	const char *cur_filename;
1592	int cur_lineno;
1593	char *compiled_string_description;
1594
1595	if (zend_is_compiling()) {
1596		cur_filename = ZSTR_VAL(zend_get_compiled_filename());
1597		cur_lineno = zend_get_compiled_lineno();
1598	} else if (zend_is_executing()) {
1599		cur_filename = zend_get_executed_filename();
1600		cur_lineno = zend_get_executed_lineno();
1601	} else {
1602		cur_filename = "Unknown";
1603		cur_lineno = 0;
1604	}
1605
1606	zend_spprintf(&compiled_string_description, 0, COMPILED_STRING_DESCRIPTION_FORMAT, cur_filename, cur_lineno, name);
1607	return compiled_string_description;
1608}
1609/* }}} */
1610
1611void free_estring(char **str_p) /* {{{ */
1612{
1613	efree(*str_p);
1614}
1615/* }}} */
1616
1617/*
1618 * Local variables:
1619 * tab-width: 4
1620 * c-basic-offset: 4
1621 * indent-tabs-mode: t
1622 * End:
1623 * vim600: sw=4 ts=4 fdm=marker
1624 * vim<600: sw=4 ts=4
1625 */
1626