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@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 #include "zend_smart_str.h"
35
36 #ifdef ZTS
37 # define GLOBAL_FUNCTION_TABLE global_function_table
38 # define GLOBAL_CLASS_TABLE global_class_table
39 # define GLOBAL_CONSTANTS_TABLE global_constants_table
40 # define GLOBAL_AUTO_GLOBALS_TABLE global_auto_globals_table
41 #else
42 # define GLOBAL_FUNCTION_TABLE CG(function_table)
43 # define GLOBAL_CLASS_TABLE CG(class_table)
44 # define GLOBAL_AUTO_GLOBALS_TABLE CG(auto_globals)
45 # define GLOBAL_CONSTANTS_TABLE EG(zend_constants)
46 #endif
47
48 /* true multithread-shared globals */
49 ZEND_API zend_class_entry *zend_standard_class_def = NULL;
50 ZEND_API size_t (*zend_printf)(const char *format, ...);
51 ZEND_API zend_write_func_t zend_write;
52 ZEND_API FILE *(*zend_fopen)(const char *filename, zend_string **opened_path);
53 ZEND_API int (*zend_stream_open_function)(const char *filename, zend_file_handle *handle);
54 ZEND_API void (*zend_ticks_function)(int ticks);
55 ZEND_API void (*zend_interrupt_function)(zend_execute_data *execute_data);
56 ZEND_API void (*zend_error_cb)(int type, const char *error_filename, const uint error_lineno, const char *format, va_list args);
57 size_t (*zend_vspprintf)(char **pbuf, size_t max_len, const char *format, va_list ap);
58 zend_string *(*zend_vstrpprintf)(size_t max_len, const char *format, va_list ap);
59 ZEND_API char *(*zend_getenv)(char *name, size_t name_len);
60 ZEND_API zend_string *(*zend_resolve_path)(const char *filename, int filename_len);
61
62 void (*zend_on_timeout)(int seconds);
63
64 static void (*zend_message_dispatcher_p)(zend_long message, const void *data);
65 static zval *(*zend_get_configuration_directive_p)(zend_string *name);
66
ZEND_INI_MH(OnUpdateErrorReporting)67 static 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
ZEND_INI_MH(OnUpdateGCEnabled)78 static 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
ZEND_INI_MH(OnUpdateScriptEncoding)90 static 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
ZEND_INI_MH(OnUpdateAssertions)102 static 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
130 ZEND_INI_BEGIN()
131 ZEND_INI_ENTRY("error_reporting", NULL, ZEND_INI_ALL, OnUpdateErrorReporting)
132 STD_ZEND_INI_ENTRY("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
140 ZEND_INI_END()
141
142
143 #ifdef ZTS
144 ZEND_API int compiler_globals_id;
145 ZEND_API int executor_globals_id;
146 static HashTable *global_function_table = NULL;
147 static HashTable *global_class_table = NULL;
148 static HashTable *global_constants_table = NULL;
149 static HashTable *global_auto_globals_table = NULL;
150 static HashTable *global_persistent_list = NULL;
151 ZEND_TSRMLS_CACHE_DEFINE()
152 #endif
153
154 ZEND_API zend_utility_values zend_uv;
155 ZEND_API zend_bool zend_dtrace_enabled;
156
157 /* version information */
158 static char *zend_version_info;
159 static uint zend_version_info_length;
160 #define ZEND_CORE_VERSION_INFO "Zend Engine v" ZEND_VERSION ", Copyright (c) 1998-2018 Zend Technologies\n"
161 #define PRINT_ZVAL_INDENT 4
162
163 static void zend_print_zval_r_to_buf(smart_str *buf, zval *expr, int indent);
164
print_hash(smart_str * buf,HashTable * ht,int indent,zend_bool is_object)165 static void print_hash(smart_str *buf, HashTable *ht, int indent, zend_bool is_object) /* {{{ */
166 {
167 zval *tmp;
168 zend_string *string_key;
169 zend_ulong num_key;
170 int i;
171
172 for (i = 0; i < indent; i++) {
173 smart_str_appendc(buf, ' ');
174 }
175 smart_str_appends(buf, "(\n");
176 indent += PRINT_ZVAL_INDENT;
177 ZEND_HASH_FOREACH_KEY_VAL_IND(ht, num_key, string_key, tmp) {
178 for (i = 0; i < indent; i++) {
179 smart_str_appendc(buf, ' ');
180 }
181 smart_str_appendc(buf, '[');
182 if (string_key) {
183 if (is_object) {
184 const char *prop_name, *class_name;
185 size_t prop_len;
186 int mangled = zend_unmangle_property_name_ex(string_key, &class_name, &prop_name, &prop_len);
187
188 smart_str_appendl(buf, prop_name, prop_len);
189 if (class_name && mangled == SUCCESS) {
190 if (class_name[0] == '*') {
191 smart_str_appends(buf, ":protected");
192 } else {
193 smart_str_appends(buf, ":");
194 smart_str_appends(buf, class_name);
195 smart_str_appends(buf, ":private");
196 }
197 }
198 } else {
199 smart_str_append(buf, string_key);
200 }
201 } else {
202 smart_str_append_long(buf, num_key);
203 }
204 smart_str_appends(buf, "] => ");
205 zend_print_zval_r_to_buf(buf, tmp, indent+PRINT_ZVAL_INDENT);
206 smart_str_appends(buf, "\n");
207 } ZEND_HASH_FOREACH_END();
208 indent -= PRINT_ZVAL_INDENT;
209 for (i = 0; i < indent; i++) {
210 smart_str_appendc(buf, ' ');
211 }
212 smart_str_appends(buf, ")\n");
213 }
214 /* }}} */
215
print_flat_hash(HashTable * ht)216 static void print_flat_hash(HashTable *ht) /* {{{ */
217 {
218 zval *tmp;
219 zend_string *string_key;
220 zend_ulong num_key;
221 int i = 0;
222
223 ZEND_HASH_FOREACH_KEY_VAL_IND(ht, num_key, string_key, tmp) {
224 if (i++ > 0) {
225 ZEND_PUTS(",");
226 }
227 ZEND_PUTS("[");
228 if (string_key) {
229 ZEND_WRITE(ZSTR_VAL(string_key), ZSTR_LEN(string_key));
230 } else {
231 zend_printf(ZEND_ULONG_FMT, num_key);
232 }
233 ZEND_PUTS("] => ");
234 zend_print_flat_zval_r(tmp);
235 } ZEND_HASH_FOREACH_END();
236 }
237 /* }}} */
238
zend_make_printable_zval(zval * expr,zval * expr_copy)239 ZEND_API int zend_make_printable_zval(zval *expr, zval *expr_copy) /* {{{ */
240 {
241 if (Z_TYPE_P(expr) == IS_STRING) {
242 return 0;
243 } else {
244 ZVAL_STR(expr_copy, _zval_get_string_func(expr));
245 return 1;
246 }
247 }
248 /* }}} */
249
zend_print_zval(zval * expr,int indent)250 ZEND_API size_t zend_print_zval(zval *expr, int indent) /* {{{ */
251 {
252 zend_string *str = zval_get_string(expr);
253 size_t len = ZSTR_LEN(str);
254
255 if (len != 0) {
256 zend_write(ZSTR_VAL(str), len);
257 }
258
259 zend_string_release(str);
260 return len;
261 }
262 /* }}} */
263
zend_print_flat_zval_r(zval * expr)264 ZEND_API void zend_print_flat_zval_r(zval *expr) /* {{{ */
265 {
266 switch (Z_TYPE_P(expr)) {
267 case IS_ARRAY:
268 ZEND_PUTS("Array (");
269 if (ZEND_HASH_APPLY_PROTECTION(Z_ARRVAL_P(expr)) &&
270 ++Z_ARRVAL_P(expr)->u.v.nApplyCount>1) {
271 ZEND_PUTS(" *RECURSION*");
272 Z_ARRVAL_P(expr)->u.v.nApplyCount--;
273 return;
274 }
275 print_flat_hash(Z_ARRVAL_P(expr));
276 ZEND_PUTS(")");
277 if (ZEND_HASH_APPLY_PROTECTION(Z_ARRVAL_P(expr))) {
278 Z_ARRVAL_P(expr)->u.v.nApplyCount--;
279 }
280 break;
281 case IS_OBJECT:
282 {
283 HashTable *properties = NULL;
284 zend_string *class_name = Z_OBJ_HANDLER_P(expr, get_class_name)(Z_OBJ_P(expr));
285 zend_printf("%s Object (", ZSTR_VAL(class_name));
286 zend_string_release(class_name);
287
288 if (Z_OBJ_APPLY_COUNT_P(expr) > 0) {
289 ZEND_PUTS(" *RECURSION*");
290 return;
291 }
292
293 if (Z_OBJ_HANDLER_P(expr, get_properties)) {
294 properties = Z_OBJPROP_P(expr);
295 }
296 if (properties) {
297 Z_OBJ_INC_APPLY_COUNT_P(expr);
298 print_flat_hash(properties);
299 Z_OBJ_DEC_APPLY_COUNT_P(expr);
300 }
301 ZEND_PUTS(")");
302 break;
303 }
304 case IS_REFERENCE:
305 zend_print_flat_zval_r(Z_REFVAL_P(expr));
306 break;
307 default:
308 zend_print_variable(expr);
309 break;
310 }
311 }
312 /* }}} */
313
zend_print_zval_r_to_buf(smart_str * buf,zval * expr,int indent)314 static void zend_print_zval_r_to_buf(smart_str *buf, zval *expr, int indent) /* {{{ */
315 {
316 switch (Z_TYPE_P(expr)) {
317 case IS_ARRAY:
318 smart_str_appends(buf, "Array\n");
319 if (ZEND_HASH_APPLY_PROTECTION(Z_ARRVAL_P(expr)) &&
320 ++Z_ARRVAL_P(expr)->u.v.nApplyCount>1) {
321 smart_str_appends(buf, " *RECURSION*");
322 Z_ARRVAL_P(expr)->u.v.nApplyCount--;
323 return;
324 }
325 print_hash(buf, Z_ARRVAL_P(expr), indent, 0);
326 if (ZEND_HASH_APPLY_PROTECTION(Z_ARRVAL_P(expr))) {
327 Z_ARRVAL_P(expr)->u.v.nApplyCount--;
328 }
329 break;
330 case IS_OBJECT:
331 {
332 HashTable *properties;
333 int is_temp;
334
335 zend_string *class_name = Z_OBJ_HANDLER_P(expr, get_class_name)(Z_OBJ_P(expr));
336 smart_str_appends(buf, ZSTR_VAL(class_name));
337 zend_string_release(class_name);
338
339 smart_str_appends(buf, " Object\n");
340 if (Z_OBJ_APPLY_COUNT_P(expr) > 0) {
341 smart_str_appends(buf, " *RECURSION*");
342 return;
343 }
344 if ((properties = Z_OBJDEBUG_P(expr, is_temp)) == NULL) {
345 break;
346 }
347
348 Z_OBJ_INC_APPLY_COUNT_P(expr);
349 print_hash(buf, properties, indent, 1);
350 Z_OBJ_DEC_APPLY_COUNT_P(expr);
351
352 if (is_temp) {
353 zend_hash_destroy(properties);
354 FREE_HASHTABLE(properties);
355 }
356 break;
357 }
358 case IS_LONG:
359 smart_str_append_long(buf, Z_LVAL_P(expr));
360 break;
361 case IS_REFERENCE:
362 zend_print_zval_r_to_buf(buf, Z_REFVAL_P(expr), indent);
363 break;
364 default:
365 {
366 zend_string *str = zval_get_string(expr);
367 smart_str_append(buf, str);
368 zend_string_release(str);
369 }
370 break;
371 }
372 }
373 /* }}} */
374
zend_print_zval_r_to_str(zval * expr,int indent)375 ZEND_API zend_string *zend_print_zval_r_to_str(zval *expr, int indent) /* {{{ */
376 {
377 smart_str buf = {0};
378 zend_print_zval_r_to_buf(&buf, expr, indent);
379 smart_str_0(&buf);
380 return buf.s;
381 }
382 /* }}} */
383
zend_print_zval_r(zval * expr,int indent)384 ZEND_API void zend_print_zval_r(zval *expr, int indent) /* {{{ */
385 {
386 zend_string *str = zend_print_zval_r_to_str(expr, indent);
387 zend_write(ZSTR_VAL(str), ZSTR_LEN(str));
388 zend_string_release(str);
389 }
390 /* }}} */
391
zend_fopen_wrapper(const char * filename,zend_string ** opened_path)392 static FILE *zend_fopen_wrapper(const char *filename, zend_string **opened_path) /* {{{ */
393 {
394 if (opened_path) {
395 *opened_path = zend_string_init(filename, strlen(filename), 0);
396 }
397 return fopen(filename, "rb");
398 }
399 /* }}} */
400
401 #ifdef ZTS
402 static zend_bool short_tags_default = 1;
403 static uint32_t compiler_options_default = ZEND_COMPILE_DEFAULT;
404 #else
405 # define short_tags_default 1
406 # define compiler_options_default ZEND_COMPILE_DEFAULT
407 #endif
408
zend_set_default_compile_time_values(void)409 static void zend_set_default_compile_time_values(void) /* {{{ */
410 {
411 /* default compile-time values */
412 CG(short_tags) = short_tags_default;
413 CG(compiler_options) = compiler_options_default;
414 }
415 /* }}} */
416
417 #ifdef ZEND_WIN32
zend_get_windows_version_info(OSVERSIONINFOEX * osvi)418 static void zend_get_windows_version_info(OSVERSIONINFOEX *osvi) /* {{{ */
419 {
420 ZeroMemory(osvi, sizeof(OSVERSIONINFOEX));
421 osvi->dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
422 if(!GetVersionEx((OSVERSIONINFO *) osvi)) {
423 ZEND_ASSERT(0); /* Should not happen as sizeof is used. */
424 }
425 }
426 /* }}} */
427 #endif
428
zend_init_exception_op(void)429 static void zend_init_exception_op(void) /* {{{ */
430 {
431 memset(EG(exception_op), 0, sizeof(EG(exception_op)));
432 EG(exception_op)[0].opcode = ZEND_HANDLE_EXCEPTION;
433 EG(exception_op)[0].op1_type = IS_UNUSED;
434 EG(exception_op)[0].op2_type = IS_UNUSED;
435 EG(exception_op)[0].result_type = IS_UNUSED;
436 ZEND_VM_SET_OPCODE_HANDLER(EG(exception_op));
437 EG(exception_op)[1].opcode = ZEND_HANDLE_EXCEPTION;
438 EG(exception_op)[1].op1_type = IS_UNUSED;
439 EG(exception_op)[1].op2_type = IS_UNUSED;
440 EG(exception_op)[1].result_type = IS_UNUSED;
441 ZEND_VM_SET_OPCODE_HANDLER(EG(exception_op)+1);
442 EG(exception_op)[2].opcode = ZEND_HANDLE_EXCEPTION;
443 EG(exception_op)[2].op1_type = IS_UNUSED;
444 EG(exception_op)[2].op2_type = IS_UNUSED;
445 EG(exception_op)[2].result_type = IS_UNUSED;
446 ZEND_VM_SET_OPCODE_HANDLER(EG(exception_op)+2);
447 }
448 /* }}} */
449
zend_init_call_trampoline_op(void)450 static void zend_init_call_trampoline_op(void) /* {{{ */
451 {
452 memset(&EG(call_trampoline_op), 0, sizeof(EG(call_trampoline_op)));
453 EG(call_trampoline_op).opcode = ZEND_CALL_TRAMPOLINE;
454 EG(call_trampoline_op).op1_type = IS_UNUSED;
455 EG(call_trampoline_op).op2_type = IS_UNUSED;
456 EG(call_trampoline_op).result_type = IS_UNUSED;
457 ZEND_VM_SET_OPCODE_HANDLER(&EG(call_trampoline_op));
458 }
459 /* }}} */
460
auto_global_dtor(zval * zv)461 static void auto_global_dtor(zval *zv) /* {{{ */
462 {
463 free(Z_PTR_P(zv));
464 }
465 /* }}} */
466
467 #ifdef ZTS
function_copy_ctor(zval * zv)468 static void function_copy_ctor(zval *zv) /* {{{ */
469 {
470 zend_function *old_func = Z_FUNC_P(zv);
471 Z_FUNC_P(zv) = pemalloc(sizeof(zend_internal_function), 1);
472 memcpy(Z_FUNC_P(zv), old_func, sizeof(zend_internal_function));
473 function_add_ref(Z_FUNC_P(zv));
474 }
475 /* }}} */
476
auto_global_copy_ctor(zval * zv)477 static void auto_global_copy_ctor(zval *zv) /* {{{ */
478 {
479 zend_auto_global *old_ag = (zend_auto_global *) Z_PTR_P(zv);
480 zend_auto_global *new_ag = pemalloc(sizeof(zend_auto_global), 1);
481
482 new_ag->name = old_ag->name;
483 new_ag->auto_global_callback = old_ag->auto_global_callback;
484 new_ag->jit = old_ag->jit;
485
486 Z_PTR_P(zv) = new_ag;
487 }
488 /* }}} */
489
compiler_globals_ctor(zend_compiler_globals * compiler_globals)490 static void compiler_globals_ctor(zend_compiler_globals *compiler_globals) /* {{{ */
491 {
492 compiler_globals->compiled_filename = NULL;
493
494 compiler_globals->function_table = (HashTable *) malloc(sizeof(HashTable));
495 zend_hash_init_ex(compiler_globals->function_table, 1024, NULL, ZEND_FUNCTION_DTOR, 1, 0);
496 zend_hash_copy(compiler_globals->function_table, global_function_table, function_copy_ctor);
497
498 compiler_globals->class_table = (HashTable *) malloc(sizeof(HashTable));
499 zend_hash_init_ex(compiler_globals->class_table, 64, NULL, ZEND_CLASS_DTOR, 1, 0);
500 zend_hash_copy(compiler_globals->class_table, global_class_table, zend_class_add_ref);
501
502 zend_set_default_compile_time_values();
503
504 compiler_globals->auto_globals = (HashTable *) malloc(sizeof(HashTable));
505 zend_hash_init_ex(compiler_globals->auto_globals, 8, NULL, auto_global_dtor, 1, 0);
506 zend_hash_copy(compiler_globals->auto_globals, global_auto_globals_table, auto_global_copy_ctor);
507
508 compiler_globals->last_static_member = zend_hash_num_elements(compiler_globals->class_table);
509 if (compiler_globals->last_static_member) {
510 compiler_globals->static_members_table = calloc(compiler_globals->last_static_member, sizeof(zval*));
511 } else {
512 compiler_globals->static_members_table = NULL;
513 }
514 compiler_globals->script_encoding_list = NULL;
515
516 compiler_globals->empty_string = zend_zts_interned_string_init("", sizeof("")-1);
517
518 memset(compiler_globals->one_char_string, 0, sizeof(compiler_globals->one_char_string));
519
520 zend_known_interned_strings_init(&compiler_globals->known_strings, &compiler_globals->known_strings_count);
521 }
522 /* }}} */
523
compiler_globals_dtor(zend_compiler_globals * compiler_globals)524 static void compiler_globals_dtor(zend_compiler_globals *compiler_globals) /* {{{ */
525 {
526 if (compiler_globals->function_table != GLOBAL_FUNCTION_TABLE) {
527 zend_hash_destroy(compiler_globals->function_table);
528 free(compiler_globals->function_table);
529 }
530 if (compiler_globals->class_table != GLOBAL_CLASS_TABLE) {
531 zend_hash_destroy(compiler_globals->class_table);
532 free(compiler_globals->class_table);
533 }
534 if (compiler_globals->auto_globals != GLOBAL_AUTO_GLOBALS_TABLE) {
535 zend_hash_destroy(compiler_globals->auto_globals);
536 free(compiler_globals->auto_globals);
537 }
538 if (compiler_globals->static_members_table) {
539 free(compiler_globals->static_members_table);
540 }
541 if (compiler_globals->script_encoding_list) {
542 pefree((char*)compiler_globals->script_encoding_list, 1);
543 }
544 compiler_globals->last_static_member = 0;
545
546 zend_zts_interned_string_free(&compiler_globals->empty_string);
547
548 compiler_globals->known_strings = NULL;
549 compiler_globals->known_strings_count = 0;
550 }
551 /* }}} */
552
executor_globals_ctor(zend_executor_globals * executor_globals)553 static void executor_globals_ctor(zend_executor_globals *executor_globals) /* {{{ */
554 {
555 ZEND_TSRMLS_CACHE_UPDATE();
556
557 zend_startup_constants();
558 zend_copy_constants(EG(zend_constants), GLOBAL_CONSTANTS_TABLE);
559 zend_init_rsrc_plist();
560 zend_init_exception_op();
561 zend_init_call_trampoline_op();
562 memset(&executor_globals->trampoline, 0, sizeof(zend_op_array));
563 executor_globals->lambda_count = 0;
564 ZVAL_UNDEF(&executor_globals->user_error_handler);
565 ZVAL_UNDEF(&executor_globals->user_exception_handler);
566 executor_globals->in_autoload = NULL;
567 executor_globals->current_execute_data = NULL;
568 executor_globals->current_module = NULL;
569 executor_globals->exit_status = 0;
570 #if XPFPA_HAVE_CW
571 executor_globals->saved_fpu_cw = 0;
572 #endif
573 executor_globals->saved_fpu_cw_ptr = NULL;
574 executor_globals->active = 0;
575 executor_globals->bailout = NULL;
576 executor_globals->error_handling = EH_NORMAL;
577 executor_globals->exception_class = NULL;
578 executor_globals->exception = NULL;
579 executor_globals->objects_store.object_buckets = NULL;
580 #ifdef ZEND_WIN32
581 zend_get_windows_version_info(&executor_globals->windows_version_info);
582 #endif
583 executor_globals->valid_symbol_table = 0;
584 }
585 /* }}} */
586
executor_globals_dtor(zend_executor_globals * executor_globals)587 static void executor_globals_dtor(zend_executor_globals *executor_globals) /* {{{ */
588 {
589 zend_ini_dtor(executor_globals->ini_directives);
590
591 if (&executor_globals->persistent_list != global_persistent_list) {
592 zend_destroy_rsrc_list(&executor_globals->persistent_list);
593 }
594 if (executor_globals->zend_constants != GLOBAL_CONSTANTS_TABLE) {
595 zend_hash_destroy(executor_globals->zend_constants);
596 free(executor_globals->zend_constants);
597 }
598 }
599 /* }}} */
600
zend_new_thread_end_handler(THREAD_T thread_id)601 static void zend_new_thread_end_handler(THREAD_T thread_id) /* {{{ */
602 {
603 if (zend_copy_ini_directives() == SUCCESS) {
604 zend_ini_refresh_caches(ZEND_INI_STAGE_STARTUP);
605 }
606 }
607 /* }}} */
608 #endif
609
610 #if defined(__FreeBSD__) || defined(__DragonFly__)
611 /* FreeBSD and DragonFly floating point precision fix */
612 #include <floatingpoint.h>
613 #endif
614
ini_scanner_globals_ctor(zend_ini_scanner_globals * scanner_globals_p)615 static void ini_scanner_globals_ctor(zend_ini_scanner_globals *scanner_globals_p) /* {{{ */
616 {
617 memset(scanner_globals_p, 0, sizeof(*scanner_globals_p));
618 }
619 /* }}} */
620
php_scanner_globals_ctor(zend_php_scanner_globals * scanner_globals_p)621 static void php_scanner_globals_ctor(zend_php_scanner_globals *scanner_globals_p) /* {{{ */
622 {
623 memset(scanner_globals_p, 0, sizeof(*scanner_globals_p));
624 }
625 /* }}} */
626
627 void zend_init_opcodes_handlers(void);
628
module_destructor_zval(zval * zv)629 static void module_destructor_zval(zval *zv) /* {{{ */
630 {
631 zend_module_entry *module = (zend_module_entry*)Z_PTR_P(zv);
632
633 module_destructor(module);
634 free(module);
635 }
636 /* }}} */
637
php_auto_globals_create_globals(zend_string * name)638 static zend_bool php_auto_globals_create_globals(zend_string *name) /* {{{ */
639 {
640 zval globals;
641
642 ZVAL_ARR(&globals, &EG(symbol_table));
643 Z_TYPE_INFO_P(&globals) = IS_ARRAY;
644 ZVAL_NEW_REF(&globals, &globals);
645 zend_hash_update(&EG(symbol_table), name, &globals);
646 return 0;
647 }
648 /* }}} */
649
zend_startup(zend_utility_functions * utility_functions,char ** extensions)650 int zend_startup(zend_utility_functions *utility_functions, char **extensions) /* {{{ */
651 {
652 #ifdef ZTS
653 zend_compiler_globals *compiler_globals;
654 zend_executor_globals *executor_globals;
655 extern ZEND_API ts_rsrc_id ini_scanner_globals_id;
656 extern ZEND_API ts_rsrc_id language_scanner_globals_id;
657 ZEND_TSRMLS_CACHE_UPDATE();
658 #else
659 extern zend_ini_scanner_globals ini_scanner_globals;
660 extern zend_php_scanner_globals language_scanner_globals;
661 #endif
662
663 #ifdef ZEND_WIN32
664 php_win32_cp_set_by_id(65001);
665 #endif
666
667 start_memory_manager();
668
669 virtual_cwd_startup(); /* Could use shutdown to free the main cwd but it would just slow it down for CGI */
670
671 #if defined(__FreeBSD__) || defined(__DragonFly__)
672 /* FreeBSD and DragonFly floating point precision fix */
673 fpsetmask(0);
674 #endif
675
676 zend_startup_strtod();
677 zend_startup_extensions_mechanism();
678
679 /* Set up utility functions and values */
680 zend_error_cb = utility_functions->error_function;
681 zend_printf = utility_functions->printf_function;
682 zend_write = (zend_write_func_t) utility_functions->write_function;
683 zend_fopen = utility_functions->fopen_function;
684 if (!zend_fopen) {
685 zend_fopen = zend_fopen_wrapper;
686 }
687 zend_stream_open_function = utility_functions->stream_open_function;
688 zend_message_dispatcher_p = utility_functions->message_handler;
689 zend_get_configuration_directive_p = utility_functions->get_configuration_directive;
690 zend_ticks_function = utility_functions->ticks_function;
691 zend_on_timeout = utility_functions->on_timeout;
692 zend_vspprintf = utility_functions->vspprintf_function;
693 zend_vstrpprintf = utility_functions->vstrpprintf_function;
694 zend_getenv = utility_functions->getenv_function;
695 zend_resolve_path = utility_functions->resolve_path_function;
696
697 zend_interrupt_function = NULL;
698
699 #if HAVE_DTRACE
700 /* build with dtrace support */
701 {
702 char *tmp = getenv("USE_ZEND_DTRACE");
703
704 if (tmp && zend_atoi(tmp, 0)) {
705 zend_dtrace_enabled = 1;
706 zend_compile_file = dtrace_compile_file;
707 zend_execute_ex = dtrace_execute_ex;
708 zend_execute_internal = dtrace_execute_internal;
709 } else {
710 zend_compile_file = compile_file;
711 zend_execute_ex = execute_ex;
712 zend_execute_internal = NULL;
713 }
714 }
715 #else
716 zend_compile_file = compile_file;
717 zend_execute_ex = execute_ex;
718 zend_execute_internal = NULL;
719 #endif /* HAVE_DTRACE */
720 zend_compile_string = compile_string;
721 zend_throw_exception_hook = NULL;
722
723 /* Set up the default garbage collection implementation. */
724 gc_collect_cycles = zend_gc_collect_cycles;
725
726 zend_init_opcodes_handlers();
727
728 /* set up version */
729 zend_version_info = strdup(ZEND_CORE_VERSION_INFO);
730 zend_version_info_length = sizeof(ZEND_CORE_VERSION_INFO) - 1;
731
732 GLOBAL_FUNCTION_TABLE = (HashTable *) malloc(sizeof(HashTable));
733 GLOBAL_CLASS_TABLE = (HashTable *) malloc(sizeof(HashTable));
734 GLOBAL_AUTO_GLOBALS_TABLE = (HashTable *) malloc(sizeof(HashTable));
735 GLOBAL_CONSTANTS_TABLE = (HashTable *) malloc(sizeof(HashTable));
736
737 zend_hash_init_ex(GLOBAL_FUNCTION_TABLE, 1024, NULL, ZEND_FUNCTION_DTOR, 1, 0);
738 zend_hash_init_ex(GLOBAL_CLASS_TABLE, 64, NULL, ZEND_CLASS_DTOR, 1, 0);
739 zend_hash_init_ex(GLOBAL_AUTO_GLOBALS_TABLE, 8, NULL, auto_global_dtor, 1, 0);
740 zend_hash_init_ex(GLOBAL_CONSTANTS_TABLE, 128, NULL, ZEND_CONSTANT_DTOR, 1, 0);
741
742 zend_hash_init_ex(&module_registry, 32, NULL, module_destructor_zval, 1, 0);
743 zend_init_rsrc_list_dtors();
744
745 #ifdef ZTS
746 ts_allocate_id(&compiler_globals_id, sizeof(zend_compiler_globals), (ts_allocate_ctor) compiler_globals_ctor, (ts_allocate_dtor) compiler_globals_dtor);
747 ts_allocate_id(&executor_globals_id, sizeof(zend_executor_globals), (ts_allocate_ctor) executor_globals_ctor, (ts_allocate_dtor) executor_globals_dtor);
748 ts_allocate_id(&language_scanner_globals_id, sizeof(zend_php_scanner_globals), (ts_allocate_ctor) php_scanner_globals_ctor, NULL);
749 ts_allocate_id(&ini_scanner_globals_id, sizeof(zend_ini_scanner_globals), (ts_allocate_ctor) ini_scanner_globals_ctor, NULL);
750 compiler_globals = ts_resource(compiler_globals_id);
751 executor_globals = ts_resource(executor_globals_id);
752
753 compiler_globals_dtor(compiler_globals);
754 compiler_globals->in_compilation = 0;
755 compiler_globals->function_table = (HashTable *) malloc(sizeof(HashTable));
756 compiler_globals->class_table = (HashTable *) malloc(sizeof(HashTable));
757
758 *compiler_globals->function_table = *GLOBAL_FUNCTION_TABLE;
759 *compiler_globals->class_table = *GLOBAL_CLASS_TABLE;
760 compiler_globals->auto_globals = GLOBAL_AUTO_GLOBALS_TABLE;
761
762 zend_hash_destroy(executor_globals->zend_constants);
763 *executor_globals->zend_constants = *GLOBAL_CONSTANTS_TABLE;
764 #else
765 ini_scanner_globals_ctor(&ini_scanner_globals);
766 php_scanner_globals_ctor(&language_scanner_globals);
767 zend_set_default_compile_time_values();
768 #ifdef ZEND_WIN32
769 zend_get_windows_version_info(&EG(windows_version_info));
770 #endif
771 #endif
772 EG(error_reporting) = E_ALL & ~E_NOTICE;
773
774 zend_interned_strings_init();
775 zend_startup_builtin_functions();
776 zend_register_standard_constants();
777 zend_register_auto_global(zend_string_init("GLOBALS", sizeof("GLOBALS") - 1, 1), 1, php_auto_globals_create_globals);
778
779 #ifndef ZTS
780 zend_init_rsrc_plist();
781 zend_init_exception_op();
782 zend_init_call_trampoline_op();
783 #endif
784
785 zend_ini_startup();
786
787 #ifdef ZEND_WIN32
788 /* Uses INI settings, so needs to be run after it. */
789 php_win32_cp_setup();
790 #endif
791
792 #ifdef ZTS
793 tsrm_set_new_thread_end_handler(zend_new_thread_end_handler);
794 #endif
795
796 return SUCCESS;
797 }
798 /* }}} */
799
zend_register_standard_ini_entries(void)800 void zend_register_standard_ini_entries(void) /* {{{ */
801 {
802 int module_number = 0;
803
804 REGISTER_INI_ENTRIES();
805 }
806 /* }}} */
807
808 /* Unlink the global (r/o) copies of the class, function and constant tables,
809 * and use a fresh r/w copy for the startup thread
810 */
zend_post_startup(void)811 void zend_post_startup(void) /* {{{ */
812 {
813 #ifdef ZTS
814 zend_encoding **script_encoding_list;
815
816 zend_compiler_globals *compiler_globals = ts_resource(compiler_globals_id);
817 zend_executor_globals *executor_globals = ts_resource(executor_globals_id);
818
819 *GLOBAL_FUNCTION_TABLE = *compiler_globals->function_table;
820 *GLOBAL_CLASS_TABLE = *compiler_globals->class_table;
821 *GLOBAL_CONSTANTS_TABLE = *executor_globals->zend_constants;
822
823 short_tags_default = CG(short_tags);
824 compiler_options_default = CG(compiler_options);
825
826 zend_destroy_rsrc_list(&EG(persistent_list));
827 free(compiler_globals->function_table);
828 free(compiler_globals->class_table);
829 if ((script_encoding_list = (zend_encoding **)compiler_globals->script_encoding_list)) {
830 compiler_globals_ctor(compiler_globals);
831 compiler_globals->script_encoding_list = (const zend_encoding **)script_encoding_list;
832 } else {
833 compiler_globals_ctor(compiler_globals);
834 }
835 free(EG(zend_constants));
836
837 virtual_cwd_deactivate();
838
839 executor_globals_ctor(executor_globals);
840 global_persistent_list = &EG(persistent_list);
841 zend_copy_ini_directives();
842 #else
843 virtual_cwd_deactivate();
844 #endif
845 }
846 /* }}} */
847
zend_shutdown(void)848 void zend_shutdown(void) /* {{{ */
849 {
850 zend_destroy_rsrc_list(&EG(persistent_list));
851 if (EG(active))
852 {
853 /*
854 * The order of destruction is important here.
855 * See bugs #65463 and 66036.
856 */
857 zend_function *func;
858 zend_class_entry *ce;
859
860 ZEND_HASH_REVERSE_FOREACH_PTR(GLOBAL_FUNCTION_TABLE, func) {
861 if (func->type == ZEND_USER_FUNCTION) {
862 zend_cleanup_op_array_data((zend_op_array *) func);
863 }
864 } ZEND_HASH_FOREACH_END();
865 ZEND_HASH_REVERSE_FOREACH_PTR(GLOBAL_CLASS_TABLE, ce) {
866 if (ce->type == ZEND_USER_CLASS) {
867 zend_cleanup_user_class_data(ce);
868 } else {
869 break;
870 }
871 } ZEND_HASH_FOREACH_END();
872 zend_cleanup_internal_classes();
873 zend_hash_reverse_apply(GLOBAL_FUNCTION_TABLE, (apply_func_t) clean_non_persistent_function_full);
874 zend_hash_reverse_apply(GLOBAL_CLASS_TABLE, (apply_func_t) clean_non_persistent_class_full);
875 }
876 zend_destroy_modules();
877
878 virtual_cwd_deactivate();
879 virtual_cwd_shutdown();
880
881 zend_hash_destroy(GLOBAL_FUNCTION_TABLE);
882 zend_hash_destroy(GLOBAL_CLASS_TABLE);
883
884 zend_hash_destroy(GLOBAL_AUTO_GLOBALS_TABLE);
885 free(GLOBAL_AUTO_GLOBALS_TABLE);
886
887 zend_shutdown_extensions();
888 free(zend_version_info);
889
890 free(GLOBAL_FUNCTION_TABLE);
891 free(GLOBAL_CLASS_TABLE);
892
893 zend_hash_destroy(GLOBAL_CONSTANTS_TABLE);
894 free(GLOBAL_CONSTANTS_TABLE);
895 zend_shutdown_strtod();
896
897 #ifdef ZTS
898 GLOBAL_FUNCTION_TABLE = NULL;
899 GLOBAL_CLASS_TABLE = NULL;
900 GLOBAL_AUTO_GLOBALS_TABLE = NULL;
901 GLOBAL_CONSTANTS_TABLE = NULL;
902 #endif
903 zend_destroy_rsrc_list_dtors();
904
905 zend_interned_strings_dtor();
906 }
907 /* }}} */
908
zend_set_utility_values(zend_utility_values * utility_values)909 void zend_set_utility_values(zend_utility_values *utility_values) /* {{{ */
910 {
911 zend_uv = *utility_values;
912 zend_uv.import_use_extension_length = (uint)strlen(zend_uv.import_use_extension);
913 }
914 /* }}} */
915
916 /* this should be compatible with the standard zenderror */
zenderror(const char * error)917 ZEND_COLD void zenderror(const char *error) /* {{{ */
918 {
919 CG(parse_error) = 0;
920
921 if (EG(exception)) {
922 /* An exception was thrown in the lexer, don't throw another in the parser. */
923 return;
924 }
925
926 zend_throw_exception(zend_ce_parse_error, error, 0);
927 }
928 /* }}} */
929
BEGIN_EXTERN_C()930 BEGIN_EXTERN_C()
931 ZEND_API ZEND_COLD void _zend_bailout(char *filename, uint lineno) /* {{{ */
932 {
933
934 if (!EG(bailout)) {
935 zend_output_debug_string(1, "%s(%d) : Bailed out without a bailout address!", filename, lineno);
936 exit(-1);
937 }
938 CG(unclean_shutdown) = 1;
939 CG(active_class_entry) = NULL;
940 CG(in_compilation) = 0;
941 EG(current_execute_data) = NULL;
942 LONGJMP(*EG(bailout), FAILURE);
943 }
944 /* }}} */
END_EXTERN_C()945 END_EXTERN_C()
946
947 ZEND_API void zend_append_version_info(const zend_extension *extension) /* {{{ */
948 {
949 char *new_info;
950 uint new_info_length;
951
952 new_info_length = (uint)(sizeof(" with v, , by \n")
953 + strlen(extension->name)
954 + strlen(extension->version)
955 + strlen(extension->copyright)
956 + strlen(extension->author));
957
958 new_info = (char *) malloc(new_info_length + 1);
959
960 snprintf(new_info, new_info_length, " with %s v%s, %s, by %s\n", extension->name, extension->version, extension->copyright, extension->author);
961
962 zend_version_info = (char *) realloc(zend_version_info, zend_version_info_length+new_info_length + 1);
963 strncat(zend_version_info, new_info, new_info_length);
964 zend_version_info_length += new_info_length;
965 free(new_info);
966 }
967 /* }}} */
968
get_zend_version(void)969 ZEND_API char *get_zend_version(void) /* {{{ */
970 {
971 return zend_version_info;
972 }
973 /* }}} */
974
zend_activate(void)975 ZEND_API void zend_activate(void) /* {{{ */
976 {
977 #ifdef ZTS
978 virtual_cwd_activate();
979 #endif
980 gc_reset();
981 init_compiler();
982 init_executor();
983 startup_scanner();
984 }
985 /* }}} */
986
zend_call_destructors(void)987 void zend_call_destructors(void) /* {{{ */
988 {
989 zend_try {
990 shutdown_destructors();
991 } zend_end_try();
992 }
993 /* }}} */
994
zend_deactivate(void)995 ZEND_API void zend_deactivate(void) /* {{{ */
996 {
997 /* we're no longer executing anything */
998 EG(current_execute_data) = NULL;
999
1000 zend_try {
1001 shutdown_scanner();
1002 } zend_end_try();
1003
1004 /* shutdown_executor() takes care of its own bailout handling */
1005 shutdown_executor();
1006
1007 zend_try {
1008 zend_ini_deactivate();
1009 } zend_end_try();
1010
1011 zend_try {
1012 shutdown_compiler();
1013 } zend_end_try();
1014
1015 zend_destroy_rsrc_list(&EG(regular_list));
1016
1017 #if GC_BENCH
1018 fprintf(stderr, "GC Statistics\n");
1019 fprintf(stderr, "-------------\n");
1020 fprintf(stderr, "Runs: %d\n", GC_G(gc_runs));
1021 fprintf(stderr, "Collected: %d\n", GC_G(collected));
1022 fprintf(stderr, "Root buffer length: %d\n", GC_G(root_buf_length));
1023 fprintf(stderr, "Root buffer peak: %d\n\n", GC_G(root_buf_peak));
1024 fprintf(stderr, " Possible Remove from Marked\n");
1025 fprintf(stderr, " Root Buffered buffer grey\n");
1026 fprintf(stderr, " -------- -------- ----------- ------\n");
1027 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));
1028 #endif
1029 }
1030 /* }}} */
1031
BEGIN_EXTERN_C()1032 BEGIN_EXTERN_C()
1033 ZEND_API void zend_message_dispatcher(zend_long message, const void *data) /* {{{ */
1034 {
1035 if (zend_message_dispatcher_p) {
1036 zend_message_dispatcher_p(message, data);
1037 }
1038 }
1039 /* }}} */
END_EXTERN_C()1040 END_EXTERN_C()
1041
1042 ZEND_API zval *zend_get_configuration_directive(zend_string *name) /* {{{ */
1043 {
1044 if (zend_get_configuration_directive_p) {
1045 return zend_get_configuration_directive_p(name);
1046 } else {
1047 return NULL;
1048 }
1049 }
1050 /* }}} */
1051
1052 #define SAVE_STACK(stack) do { \
1053 if (CG(stack).top) { \
1054 memcpy(&stack, &CG(stack), sizeof(zend_stack)); \
1055 CG(stack).top = CG(stack).max = 0; \
1056 CG(stack).elements = NULL; \
1057 } else { \
1058 stack.top = 0; \
1059 } \
1060 } while (0)
1061
1062 #define RESTORE_STACK(stack) do { \
1063 if (stack.top) { \
1064 zend_stack_destroy(&CG(stack)); \
1065 memcpy(&CG(stack), &stack, sizeof(zend_stack)); \
1066 } \
1067 } while (0)
1068
1069 #if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
zend_error(int type,const char * format,...)1070 ZEND_API ZEND_COLD void zend_error(int type, const char *format, ...) /* {{{ */
1071 #else
1072 static ZEND_COLD void zend_error_va_list(int type, const char *format, va_list args)
1073 #endif
1074 {
1075 char *str;
1076 int len;
1077 #if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1078 va_list args;
1079 #endif
1080 va_list usr_copy;
1081 zval params[5];
1082 zval retval;
1083 const char *error_filename;
1084 uint error_lineno = 0;
1085 zval orig_user_error_handler;
1086 zend_bool in_compilation;
1087 zend_class_entry *saved_class_entry;
1088 zend_stack loop_var_stack;
1089 zend_stack delayed_oplines_stack;
1090 zend_array *symbol_table;
1091
1092 /* Report about uncaught exception in case of fatal errors */
1093 if (EG(exception)) {
1094 zend_execute_data *ex;
1095 const zend_op *opline;
1096
1097 switch (type) {
1098 case E_CORE_ERROR:
1099 case E_ERROR:
1100 case E_RECOVERABLE_ERROR:
1101 case E_PARSE:
1102 case E_COMPILE_ERROR:
1103 case E_USER_ERROR:
1104 ex = EG(current_execute_data);
1105 opline = NULL;
1106 while (ex && (!ex->func || !ZEND_USER_CODE(ex->func->type))) {
1107 ex = ex->prev_execute_data;
1108 }
1109 if (ex && ex->opline->opcode == ZEND_HANDLE_EXCEPTION &&
1110 EG(opline_before_exception)) {
1111 opline = EG(opline_before_exception);
1112 }
1113 zend_exception_error(EG(exception), E_WARNING);
1114 EG(exception) = NULL;
1115 if (opline) {
1116 ex->opline = opline;
1117 }
1118 break;
1119 default:
1120 break;
1121 }
1122 }
1123
1124 /* Obtain relevant filename and lineno */
1125 switch (type) {
1126 case E_CORE_ERROR:
1127 case E_CORE_WARNING:
1128 error_filename = NULL;
1129 error_lineno = 0;
1130 break;
1131 case E_PARSE:
1132 case E_COMPILE_ERROR:
1133 case E_COMPILE_WARNING:
1134 case E_ERROR:
1135 case E_NOTICE:
1136 case E_STRICT:
1137 case E_DEPRECATED:
1138 case E_WARNING:
1139 case E_USER_ERROR:
1140 case E_USER_WARNING:
1141 case E_USER_NOTICE:
1142 case E_USER_DEPRECATED:
1143 case E_RECOVERABLE_ERROR:
1144 if (zend_is_compiling()) {
1145 error_filename = ZSTR_VAL(zend_get_compiled_filename());
1146 error_lineno = zend_get_compiled_lineno();
1147 } else if (zend_is_executing()) {
1148 error_filename = zend_get_executed_filename();
1149 if (error_filename[0] == '[') { /* [no active file] */
1150 error_filename = NULL;
1151 error_lineno = 0;
1152 } else {
1153 error_lineno = zend_get_executed_lineno();
1154 }
1155 } else {
1156 error_filename = NULL;
1157 error_lineno = 0;
1158 }
1159 break;
1160 default:
1161 error_filename = NULL;
1162 error_lineno = 0;
1163 break;
1164 }
1165 if (!error_filename) {
1166 error_filename = "Unknown";
1167 }
1168
1169 #ifdef HAVE_DTRACE
1170 if (DTRACE_ERROR_ENABLED()) {
1171 char *dtrace_error_buffer;
1172 #if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1173 va_start(args, format);
1174 #endif
1175 zend_vspprintf(&dtrace_error_buffer, 0, format, args);
1176 DTRACE_ERROR(dtrace_error_buffer, (char *)error_filename, error_lineno);
1177 efree(dtrace_error_buffer);
1178 #if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1179 va_end(args);
1180 #endif
1181 }
1182 #endif /* HAVE_DTRACE */
1183
1184 #if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1185 va_start(args, format);
1186 #endif
1187
1188 /* if we don't have a user defined error handler */
1189 if (Z_TYPE(EG(user_error_handler)) == IS_UNDEF
1190 || !(EG(user_error_handler_error_reporting) & type)
1191 || EG(error_handling) != EH_NORMAL) {
1192 zend_error_cb(type, error_filename, error_lineno, format, args);
1193 } else switch (type) {
1194 case E_ERROR:
1195 case E_PARSE:
1196 case E_CORE_ERROR:
1197 case E_CORE_WARNING:
1198 case E_COMPILE_ERROR:
1199 case E_COMPILE_WARNING:
1200 /* The error may not be safe to handle in user-space */
1201 zend_error_cb(type, error_filename, error_lineno, format, args);
1202 break;
1203 default:
1204 /* Handle the error in user space */
1205 /* va_copy() is __va_copy() in old gcc versions.
1206 * According to the autoconf manual, using
1207 * memcpy(&dst, &src, sizeof(va_list))
1208 * gives maximum portability. */
1209 #ifndef va_copy
1210 # ifdef __va_copy
1211 # define va_copy(dest, src) __va_copy((dest), (src))
1212 # else
1213 # define va_copy(dest, src) memcpy(&(dest), &(src), sizeof(va_list))
1214 # endif
1215 #endif
1216 va_copy(usr_copy, args);
1217 len = (int)zend_vspprintf(&str, 0, format, usr_copy);
1218 ZVAL_NEW_STR(¶ms[1], zend_string_init(str, len, 0));
1219 efree(str);
1220 #ifdef va_copy
1221 va_end(usr_copy);
1222 #endif
1223
1224 ZVAL_LONG(¶ms[0], type);
1225
1226 if (error_filename) {
1227 ZVAL_STRING(¶ms[2], error_filename);
1228 } else {
1229 ZVAL_NULL(¶ms[2]);
1230 }
1231
1232 ZVAL_LONG(¶ms[3], error_lineno);
1233
1234 symbol_table = zend_rebuild_symbol_table();
1235
1236 /* during shutdown the symbol table table can be still null */
1237 if (!symbol_table) {
1238 ZVAL_NULL(¶ms[4]);
1239 } else {
1240 ZVAL_ARR(¶ms[4], zend_array_dup(symbol_table));
1241 }
1242
1243 ZVAL_COPY_VALUE(&orig_user_error_handler, &EG(user_error_handler));
1244 ZVAL_UNDEF(&EG(user_error_handler));
1245
1246 /* User error handler may include() additinal PHP files.
1247 * If an error was generated during comilation PHP will compile
1248 * such scripts recursivly, but some CG() variables may be
1249 * inconsistent. */
1250
1251 in_compilation = CG(in_compilation);
1252 if (in_compilation) {
1253 saved_class_entry = CG(active_class_entry);
1254 CG(active_class_entry) = NULL;
1255 SAVE_STACK(loop_var_stack);
1256 SAVE_STACK(delayed_oplines_stack);
1257 CG(in_compilation) = 0;
1258 }
1259
1260 if (call_user_function_ex(CG(function_table), NULL, &orig_user_error_handler, &retval, 5, params, 1, NULL) == SUCCESS) {
1261 if (Z_TYPE(retval) != IS_UNDEF) {
1262 if (Z_TYPE(retval) == IS_FALSE) {
1263 zend_error_cb(type, error_filename, error_lineno, format, args);
1264 }
1265 zval_ptr_dtor(&retval);
1266 }
1267 } else if (!EG(exception)) {
1268 /* The user error handler failed, use built-in error handler */
1269 zend_error_cb(type, error_filename, error_lineno, format, args);
1270 }
1271
1272 if (in_compilation) {
1273 CG(active_class_entry) = saved_class_entry;
1274 RESTORE_STACK(loop_var_stack);
1275 RESTORE_STACK(delayed_oplines_stack);
1276 CG(in_compilation) = 1;
1277 }
1278
1279 zval_ptr_dtor(¶ms[4]);
1280 zval_ptr_dtor(¶ms[3]);
1281 zval_ptr_dtor(¶ms[2]);
1282 zval_ptr_dtor(¶ms[1]);
1283 zval_ptr_dtor(¶ms[0]);
1284
1285 if (Z_TYPE(EG(user_error_handler)) == IS_UNDEF) {
1286 ZVAL_COPY_VALUE(&EG(user_error_handler), &orig_user_error_handler);
1287 } else {
1288 zval_ptr_dtor(&orig_user_error_handler);
1289 }
1290 break;
1291 }
1292
1293 #if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1294 va_end(args);
1295 #endif
1296
1297 if (type == E_PARSE) {
1298 /* eval() errors do not affect exit_status */
1299 if (!(EG(current_execute_data) &&
1300 EG(current_execute_data)->func &&
1301 ZEND_USER_CODE(EG(current_execute_data)->func->type) &&
1302 EG(current_execute_data)->opline->opcode == ZEND_INCLUDE_OR_EVAL &&
1303 EG(current_execute_data)->opline->extended_value == ZEND_EVAL)) {
1304 EG(exit_status) = 255;
1305 }
1306 }
1307 }
1308 /* }}} */
1309
1310 #ifdef HAVE_NORETURN
1311 # ifdef HAVE_NORETURN_ALIAS
1312 ZEND_COLD void zend_error_noreturn(int type, const char *format, ...) __attribute__ ((alias("zend_error"),noreturn));
1313 # else
zend_error(int type,const char * format,...)1314 ZEND_API ZEND_COLD void zend_error(int type, const char *format, ...) /* {{{ */
1315 {
1316 va_list va;
1317
1318 va_start(va, format);
1319 zend_error_va_list(type, format, va);
1320 va_end(va);
1321 }
1322
zend_error_noreturn(int type,const char * format,...)1323 ZEND_API ZEND_COLD ZEND_NORETURN void zend_error_noreturn(int type, const char *format, ...)
1324 {
1325 va_list va;
1326
1327 va_start(va, format);
1328 zend_error_va_list(type, format, va);
1329 va_end(va);
1330 }
1331 /* }}} */
1332 # endif
1333 #endif
1334
zend_throw_error(zend_class_entry * exception_ce,const char * format,...)1335 ZEND_API ZEND_COLD void zend_throw_error(zend_class_entry *exception_ce, const char *format, ...) /* {{{ */
1336 {
1337 va_list va;
1338 char *message = NULL;
1339
1340 if (exception_ce) {
1341 if (!instanceof_function(exception_ce, zend_ce_error)) {
1342 zend_error(E_NOTICE, "Error exceptions must be derived from Error");
1343 exception_ce = zend_ce_error;
1344 }
1345 } else {
1346 exception_ce = zend_ce_error;
1347 }
1348
1349 va_start(va, format);
1350 zend_vspprintf(&message, 0, format, va);
1351
1352 //TODO: we can't convert compile-time errors to exceptions yet???
1353 if (EG(current_execute_data) && !CG(in_compilation)) {
1354 zend_throw_exception(exception_ce, message, 0);
1355 } else {
1356 zend_error(E_ERROR, "%s", message);
1357 }
1358
1359 efree(message);
1360 va_end(va);
1361 }
1362 /* }}} */
1363
zend_type_error(const char * format,...)1364 ZEND_API ZEND_COLD void zend_type_error(const char *format, ...) /* {{{ */
1365 {
1366 va_list va;
1367 char *message = NULL;
1368
1369 va_start(va, format);
1370 zend_vspprintf(&message, 0, format, va);
1371 zend_throw_exception(zend_ce_type_error, message, 0);
1372 efree(message);
1373 va_end(va);
1374 } /* }}} */
1375
zend_internal_type_error(zend_bool throw_exception,const char * format,...)1376 ZEND_API ZEND_COLD void zend_internal_type_error(zend_bool throw_exception, const char *format, ...) /* {{{ */
1377 {
1378 va_list va;
1379 char *message = NULL;
1380
1381 va_start(va, format);
1382 zend_vspprintf(&message, 0, format, va);
1383 if (throw_exception) {
1384 zend_throw_exception(zend_ce_type_error, message, 0);
1385 } else {
1386 zend_error(E_WARNING, "%s", message);
1387 }
1388 efree(message);
1389
1390 va_end(va);
1391 } /* }}} */
1392
zend_internal_argument_count_error(zend_bool throw_exception,const char * format,...)1393 ZEND_API ZEND_COLD void zend_internal_argument_count_error(zend_bool throw_exception, const char *format, ...) /* {{{ */
1394 {
1395 va_list va;
1396 char *message = NULL;
1397
1398 va_start(va, format);
1399 zend_vspprintf(&message, 0, format, va);
1400 if (throw_exception) {
1401 zend_throw_exception(zend_ce_argument_count_error, message, 0);
1402 } else {
1403 zend_error(E_WARNING, "%s", message);
1404 }
1405 efree(message);
1406
1407 va_end(va);
1408 } /* }}} */
1409
zend_output_debug_string(zend_bool trigger_break,const char * format,...)1410 ZEND_API ZEND_COLD void zend_output_debug_string(zend_bool trigger_break, const char *format, ...) /* {{{ */
1411 {
1412 #if ZEND_DEBUG
1413 va_list args;
1414
1415 va_start(args, format);
1416 # ifdef ZEND_WIN32
1417 {
1418 char output_buf[1024];
1419
1420 vsnprintf(output_buf, 1024, format, args);
1421 OutputDebugString(output_buf);
1422 OutputDebugString("\n");
1423 if (trigger_break && IsDebuggerPresent()) {
1424 DebugBreak();
1425 }
1426 }
1427 # else
1428 vfprintf(stderr, format, args);
1429 fprintf(stderr, "\n");
1430 # endif
1431 va_end(args);
1432 #endif
1433 }
1434 /* }}} */
1435
zend_try_exception_handler()1436 ZEND_API void zend_try_exception_handler() /* {{{ */
1437 {
1438 if (EG(exception)) {
1439 if (Z_TYPE(EG(user_exception_handler)) != IS_UNDEF) {
1440 zval orig_user_exception_handler;
1441 zval params[1], retval2;
1442 zend_object *old_exception;
1443 old_exception = EG(exception);
1444 EG(exception) = NULL;
1445 ZVAL_OBJ(¶ms[0], old_exception);
1446 ZVAL_COPY_VALUE(&orig_user_exception_handler, &EG(user_exception_handler));
1447
1448 if (call_user_function_ex(CG(function_table), NULL, &orig_user_exception_handler, &retval2, 1, params, 1, NULL) == SUCCESS) {
1449 zval_ptr_dtor(&retval2);
1450 if (EG(exception)) {
1451 OBJ_RELEASE(EG(exception));
1452 EG(exception) = NULL;
1453 }
1454 OBJ_RELEASE(old_exception);
1455 } else {
1456 EG(exception) = old_exception;
1457 }
1458 }
1459 }
1460 } /* }}} */
1461
zend_execute_scripts(int type,zval * retval,int file_count,...)1462 ZEND_API int zend_execute_scripts(int type, zval *retval, int file_count, ...) /* {{{ */
1463 {
1464 va_list files;
1465 int i;
1466 zend_file_handle *file_handle;
1467 zend_op_array *op_array;
1468
1469 va_start(files, file_count);
1470 for (i = 0; i < file_count; i++) {
1471 file_handle = va_arg(files, zend_file_handle *);
1472 if (!file_handle) {
1473 continue;
1474 }
1475
1476 op_array = zend_compile_file(file_handle, type);
1477 if (file_handle->opened_path) {
1478 zend_hash_add_empty_element(&EG(included_files), file_handle->opened_path);
1479 }
1480 zend_destroy_file_handle(file_handle);
1481 if (op_array) {
1482 zend_execute(op_array, retval);
1483 zend_exception_restore();
1484 zend_try_exception_handler();
1485 if (EG(exception)) {
1486 zend_exception_error(EG(exception), E_ERROR);
1487 }
1488 destroy_op_array(op_array);
1489 efree_size(op_array, sizeof(zend_op_array));
1490 } else if (type==ZEND_REQUIRE) {
1491 va_end(files);
1492 return FAILURE;
1493 }
1494 }
1495 va_end(files);
1496
1497 return SUCCESS;
1498 }
1499 /* }}} */
1500
1501 #define COMPILED_STRING_DESCRIPTION_FORMAT "%s(%d) : %s"
1502
zend_make_compiled_string_description(const char * name)1503 ZEND_API char *zend_make_compiled_string_description(const char *name) /* {{{ */
1504 {
1505 const char *cur_filename;
1506 int cur_lineno;
1507 char *compiled_string_description;
1508
1509 if (zend_is_compiling()) {
1510 cur_filename = ZSTR_VAL(zend_get_compiled_filename());
1511 cur_lineno = zend_get_compiled_lineno();
1512 } else if (zend_is_executing()) {
1513 cur_filename = zend_get_executed_filename();
1514 cur_lineno = zend_get_executed_lineno();
1515 } else {
1516 cur_filename = "Unknown";
1517 cur_lineno = 0;
1518 }
1519
1520 zend_spprintf(&compiled_string_description, 0, COMPILED_STRING_DESCRIPTION_FORMAT, cur_filename, cur_lineno, name);
1521 return compiled_string_description;
1522 }
1523 /* }}} */
1524
free_estring(char ** str_p)1525 void free_estring(char **str_p) /* {{{ */
1526 {
1527 efree(*str_p);
1528 }
1529 /* }}} */
1530
1531 /*
1532 * Local variables:
1533 * tab-width: 4
1534 * c-basic-offset: 4
1535 * indent-tabs-mode: t
1536 * End:
1537 */
1538
