1 /*
2 +----------------------------------------------------------------------+
3 | Zend Engine |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1998-2017 Zend Technologies Ltd. (http://www.zend.com) |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 2.00 of the Zend license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.zend.com/license/2_00.txt. |
11 | If you did not receive a copy of the Zend license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@zend.com so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Authors: Andi Gutmans <andi@zend.com> |
16 | Zeev Suraski <zeev@zend.com> |
17 +----------------------------------------------------------------------+
18 */
19
20 /* $Id$ */
21
22 #include "zend.h"
23 #include "zend_extensions.h"
24 #include "zend_modules.h"
25 #include "zend_constants.h"
26 #include "zend_list.h"
27 #include "zend_API.h"
28 #include "zend_exceptions.h"
29 #include "zend_builtin_functions.h"
30 #include "zend_ini.h"
31 #include "zend_vm.h"
32 #include "zend_dtrace.h"
33 #include "zend_virtual_cwd.h"
34
35 #ifdef ZTS
36 # define GLOBAL_FUNCTION_TABLE global_function_table
37 # define GLOBAL_CLASS_TABLE global_class_table
38 # define GLOBAL_CONSTANTS_TABLE global_constants_table
39 # define GLOBAL_AUTO_GLOBALS_TABLE global_auto_globals_table
40 #else
41 # define GLOBAL_FUNCTION_TABLE CG(function_table)
42 # define GLOBAL_CLASS_TABLE CG(class_table)
43 # define GLOBAL_AUTO_GLOBALS_TABLE CG(auto_globals)
44 # define GLOBAL_CONSTANTS_TABLE EG(zend_constants)
45 #endif
46
47 /* true multithread-shared globals */
48 ZEND_API zend_class_entry *zend_standard_class_def = NULL;
49 ZEND_API size_t (*zend_printf)(const char *format, ...);
50 ZEND_API zend_write_func_t zend_write;
51 ZEND_API FILE *(*zend_fopen)(const char *filename, zend_string **opened_path);
52 ZEND_API int (*zend_stream_open_function)(const char *filename, zend_file_handle *handle);
53 ZEND_API void (*zend_block_interruptions)(void);
54 ZEND_API void (*zend_unblock_interruptions)(void);
55 ZEND_API void (*zend_ticks_function)(int ticks);
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) 1998-2017 Zend Technologies\n"
161 #define PRINT_ZVAL_INDENT 4
162
print_hash(zend_write_func_t write_func,HashTable * ht,int indent,zend_bool is_object)163 static void print_hash(zend_write_func_t write_func, HashTable *ht, int indent, zend_bool is_object) /* {{{ */
164 {
165 zval *tmp;
166 zend_string *string_key;
167 zend_ulong num_key;
168 int i;
169
170 for (i = 0; i < indent; i++) {
171 ZEND_PUTS_EX(" ");
172 }
173 ZEND_PUTS_EX("(\n");
174 indent += PRINT_ZVAL_INDENT;
175 ZEND_HASH_FOREACH_KEY_VAL(ht, num_key, string_key, tmp) {
176 if (Z_TYPE_P(tmp) == IS_INDIRECT) {
177 tmp = Z_INDIRECT_P(tmp);
178 if (Z_TYPE_P(tmp) == IS_UNDEF) {
179 continue;
180 }
181 }
182 for (i = 0; i < indent; i++) {
183 ZEND_PUTS_EX(" ");
184 }
185 ZEND_PUTS_EX("[");
186 if (string_key) {
187 if (is_object) {
188 const char *prop_name, *class_name;
189 size_t prop_len;
190 int mangled = zend_unmangle_property_name_ex(string_key, &class_name, &prop_name, &prop_len);
191
192 ZEND_WRITE_EX(prop_name, prop_len);
193 if (class_name && mangled == SUCCESS) {
194 if (class_name[0]=='*') {
195 ZEND_PUTS_EX(":protected");
196 } else {
197 ZEND_PUTS_EX(":");
198 ZEND_PUTS_EX(class_name);
199 ZEND_PUTS_EX(":private");
200 }
201 }
202 } else {
203 ZEND_WRITE_EX(ZSTR_VAL(string_key), ZSTR_LEN(string_key));
204 }
205 } else {
206 char key[25];
207 snprintf(key, sizeof(key), ZEND_LONG_FMT, num_key);
208 ZEND_PUTS_EX(key);
209 }
210 ZEND_PUTS_EX("] => ");
211 zend_print_zval_r_ex(write_func, tmp, indent+PRINT_ZVAL_INDENT);
212 ZEND_PUTS_EX("\n");
213 } ZEND_HASH_FOREACH_END();
214 indent -= PRINT_ZVAL_INDENT;
215 for (i = 0; i < indent; i++) {
216 ZEND_PUTS_EX(" ");
217 }
218 ZEND_PUTS_EX(")\n");
219 }
220 /* }}} */
221
print_flat_hash(HashTable * ht)222 static void print_flat_hash(HashTable *ht) /* {{{ */
223 {
224 zval *tmp;
225 zend_string *string_key;
226 zend_ulong num_key;
227 int i = 0;
228
229 ZEND_HASH_FOREACH_KEY_VAL_IND(ht, num_key, string_key, tmp) {
230 if (i++ > 0) {
231 ZEND_PUTS(",");
232 }
233 ZEND_PUTS("[");
234 if (string_key) {
235 ZEND_WRITE(ZSTR_VAL(string_key), ZSTR_LEN(string_key));
236 } else {
237 zend_printf(ZEND_ULONG_FMT, num_key);
238 }
239 ZEND_PUTS("] => ");
240 zend_print_flat_zval_r(tmp);
241 } ZEND_HASH_FOREACH_END();
242 }
243 /* }}} */
244
zend_make_printable_zval(zval * expr,zval * expr_copy)245 ZEND_API int zend_make_printable_zval(zval *expr, zval *expr_copy) /* {{{ */
246 {
247 if (Z_TYPE_P(expr) == IS_STRING) {
248 return 0;
249 } else {
250 ZVAL_STR(expr_copy, _zval_get_string_func(expr));
251 return 1;
252 }
253 }
254 /* }}} */
255
zend_print_zval(zval * expr,int indent)256 ZEND_API size_t zend_print_zval(zval *expr, int indent) /* {{{ */
257 {
258 return zend_print_zval_ex(zend_write, expr, indent);
259 }
260 /* }}} */
261
zend_print_zval_ex(zend_write_func_t write_func,zval * expr,int indent)262 ZEND_API size_t zend_print_zval_ex(zend_write_func_t write_func, zval *expr, int indent) /* {{{ */
263 {
264 zend_string *str = zval_get_string(expr);
265 size_t len = ZSTR_LEN(str);
266
267 if (len != 0) {
268 write_func(ZSTR_VAL(str), len);
269 }
270
271 zend_string_release(str);
272 return len;
273 }
274 /* }}} */
275
zend_print_flat_zval_r(zval * expr)276 ZEND_API void zend_print_flat_zval_r(zval *expr) /* {{{ */
277 {
278 switch (Z_TYPE_P(expr)) {
279 case IS_ARRAY:
280 ZEND_PUTS("Array (");
281 if (ZEND_HASH_APPLY_PROTECTION(Z_ARRVAL_P(expr)) &&
282 ++Z_ARRVAL_P(expr)->u.v.nApplyCount>1) {
283 ZEND_PUTS(" *RECURSION*");
284 Z_ARRVAL_P(expr)->u.v.nApplyCount--;
285 return;
286 }
287 print_flat_hash(Z_ARRVAL_P(expr));
288 ZEND_PUTS(")");
289 if (ZEND_HASH_APPLY_PROTECTION(Z_ARRVAL_P(expr))) {
290 Z_ARRVAL_P(expr)->u.v.nApplyCount--;
291 }
292 break;
293 case IS_OBJECT:
294 {
295 HashTable *properties = NULL;
296 zend_string *class_name = Z_OBJ_HANDLER_P(expr, get_class_name)(Z_OBJ_P(expr));
297 zend_printf("%s Object (", ZSTR_VAL(class_name));
298 zend_string_release(class_name);
299
300 if (Z_OBJ_APPLY_COUNT_P(expr) > 0) {
301 ZEND_PUTS(" *RECURSION*");
302 return;
303 }
304
305 if (Z_OBJ_HANDLER_P(expr, get_properties)) {
306 properties = Z_OBJPROP_P(expr);
307 }
308 if (properties) {
309 Z_OBJ_INC_APPLY_COUNT_P(expr);
310 print_flat_hash(properties);
311 Z_OBJ_DEC_APPLY_COUNT_P(expr);
312 }
313 ZEND_PUTS(")");
314 break;
315 }
316 case IS_REFERENCE:
317 zend_print_flat_zval_r(Z_REFVAL_P(expr));
318 break;
319 default:
320 zend_print_variable(expr);
321 break;
322 }
323 }
324 /* }}} */
325
zend_print_zval_r(zval * expr,int indent)326 ZEND_API void zend_print_zval_r(zval *expr, int indent) /* {{{ */
327 {
328 zend_print_zval_r_ex(zend_write, expr, indent);
329 }
330 /* }}} */
331
zend_print_zval_r_ex(zend_write_func_t write_func,zval * expr,int indent)332 ZEND_API void zend_print_zval_r_ex(zend_write_func_t write_func, zval *expr, int indent) /* {{{ */
333 {
334 ZVAL_DEREF(expr);
335 switch (Z_TYPE_P(expr)) {
336 case IS_ARRAY:
337 ZEND_PUTS_EX("Array\n");
338 if (ZEND_HASH_APPLY_PROTECTION(Z_ARRVAL_P(expr)) &&
339 ++Z_ARRVAL_P(expr)->u.v.nApplyCount>1) {
340 ZEND_PUTS_EX(" *RECURSION*");
341 Z_ARRVAL_P(expr)->u.v.nApplyCount--;
342 return;
343 }
344 print_hash(write_func, Z_ARRVAL_P(expr), indent, 0);
345 if (ZEND_HASH_APPLY_PROTECTION(Z_ARRVAL_P(expr))) {
346 Z_ARRVAL_P(expr)->u.v.nApplyCount--;
347 }
348 break;
349 case IS_OBJECT:
350 {
351 HashTable *properties;
352 int is_temp;
353
354 zend_string *class_name = Z_OBJ_HANDLER_P(expr, get_class_name)(Z_OBJ_P(expr));
355 ZEND_PUTS_EX(ZSTR_VAL(class_name));
356 zend_string_release(class_name);
357
358 ZEND_PUTS_EX(" Object\n");
359 if (Z_OBJ_APPLY_COUNT_P(expr) > 0) {
360 ZEND_PUTS_EX(" *RECURSION*");
361 return;
362 }
363 if ((properties = Z_OBJDEBUG_P(expr, is_temp)) == NULL) {
364 break;
365 }
366
367 Z_OBJ_INC_APPLY_COUNT_P(expr);
368 print_hash(write_func, properties, indent, 1);
369 Z_OBJ_DEC_APPLY_COUNT_P(expr);
370
371 if (is_temp) {
372 zend_hash_destroy(properties);
373 FREE_HASHTABLE(properties);
374 }
375 break;
376 }
377 default:
378 zend_print_zval_ex(write_func, expr, indent);
379 break;
380 }
381 }
382 /* }}} */
383
zend_fopen_wrapper(const char * filename,zend_string ** opened_path)384 static FILE *zend_fopen_wrapper(const char *filename, zend_string **opened_path) /* {{{ */
385 {
386 if (opened_path) {
387 *opened_path = zend_string_init(filename, strlen(filename), 0);
388 }
389 return fopen(filename, "rb");
390 }
391 /* }}} */
392
393 #ifdef ZTS
394 static zend_bool short_tags_default = 1;
395 static uint32_t compiler_options_default = ZEND_COMPILE_DEFAULT;
396 #else
397 # define short_tags_default 1
398 # define compiler_options_default ZEND_COMPILE_DEFAULT
399 #endif
400
zend_set_default_compile_time_values(void)401 static void zend_set_default_compile_time_values(void) /* {{{ */
402 {
403 /* default compile-time values */
404 CG(short_tags) = short_tags_default;
405 CG(compiler_options) = compiler_options_default;
406 }
407 /* }}} */
408
409 #ifdef ZEND_WIN32
zend_get_windows_version_info(OSVERSIONINFOEX * osvi)410 static void zend_get_windows_version_info(OSVERSIONINFOEX *osvi) /* {{{ */
411 {
412 ZeroMemory(osvi, sizeof(OSVERSIONINFOEX));
413 osvi->dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
414 if(!GetVersionEx((OSVERSIONINFO *) osvi)) {
415 ZEND_ASSERT(0); /* Should not happen as sizeof is used. */
416 }
417 }
418 /* }}} */
419 #endif
420
zend_init_exception_op(void)421 static void zend_init_exception_op(void) /* {{{ */
422 {
423 memset(EG(exception_op), 0, sizeof(EG(exception_op)));
424 EG(exception_op)[0].opcode = ZEND_HANDLE_EXCEPTION;
425 EG(exception_op)[0].op1_type = IS_UNUSED;
426 EG(exception_op)[0].op2_type = IS_UNUSED;
427 EG(exception_op)[0].result_type = IS_UNUSED;
428 ZEND_VM_SET_OPCODE_HANDLER(EG(exception_op));
429 EG(exception_op)[1].opcode = ZEND_HANDLE_EXCEPTION;
430 EG(exception_op)[1].op1_type = IS_UNUSED;
431 EG(exception_op)[1].op2_type = IS_UNUSED;
432 EG(exception_op)[1].result_type = IS_UNUSED;
433 ZEND_VM_SET_OPCODE_HANDLER(EG(exception_op)+1);
434 EG(exception_op)[2].opcode = ZEND_HANDLE_EXCEPTION;
435 EG(exception_op)[2].op1_type = IS_UNUSED;
436 EG(exception_op)[2].op2_type = IS_UNUSED;
437 EG(exception_op)[2].result_type = IS_UNUSED;
438 ZEND_VM_SET_OPCODE_HANDLER(EG(exception_op)+2);
439 }
440 /* }}} */
441
zend_init_call_trampoline_op(void)442 static void zend_init_call_trampoline_op(void) /* {{{ */
443 {
444 memset(&EG(call_trampoline_op), 0, sizeof(EG(call_trampoline_op)));
445 EG(call_trampoline_op).opcode = ZEND_CALL_TRAMPOLINE;
446 EG(call_trampoline_op).op1_type = IS_UNUSED;
447 EG(call_trampoline_op).op2_type = IS_UNUSED;
448 EG(call_trampoline_op).result_type = IS_UNUSED;
449 ZEND_VM_SET_OPCODE_HANDLER(&EG(call_trampoline_op));
450 }
451 /* }}} */
452
auto_global_dtor(zval * zv)453 static void auto_global_dtor(zval *zv) /* {{{ */
454 {
455 free(Z_PTR_P(zv));
456 }
457 /* }}} */
458
459 #ifdef ZTS
function_copy_ctor(zval * zv)460 static void function_copy_ctor(zval *zv) /* {{{ */
461 {
462 zend_function *old_func = Z_FUNC_P(zv);
463 Z_FUNC_P(zv) = pemalloc(sizeof(zend_internal_function), 1);
464 memcpy(Z_FUNC_P(zv), old_func, sizeof(zend_internal_function));
465 function_add_ref(Z_FUNC_P(zv));
466 }
467 /* }}} */
468
auto_global_copy_ctor(zval * zv)469 static void auto_global_copy_ctor(zval *zv) /* {{{ */
470 {
471 zend_auto_global *old_ag = (zend_auto_global *) Z_PTR_P(zv);
472 zend_auto_global *new_ag = pemalloc(sizeof(zend_auto_global), 1);
473
474 new_ag->name = old_ag->name;
475 new_ag->auto_global_callback = old_ag->auto_global_callback;
476 new_ag->jit = old_ag->jit;
477
478 Z_PTR_P(zv) = new_ag;
479 }
480 /* }}} */
481
compiler_globals_ctor(zend_compiler_globals * compiler_globals)482 static void compiler_globals_ctor(zend_compiler_globals *compiler_globals) /* {{{ */
483 {
484 compiler_globals->compiled_filename = NULL;
485
486 compiler_globals->function_table = (HashTable *) malloc(sizeof(HashTable));
487 zend_hash_init_ex(compiler_globals->function_table, 1024, NULL, ZEND_FUNCTION_DTOR, 1, 0);
488 zend_hash_copy(compiler_globals->function_table, global_function_table, function_copy_ctor);
489
490 compiler_globals->class_table = (HashTable *) malloc(sizeof(HashTable));
491 zend_hash_init_ex(compiler_globals->class_table, 64, NULL, ZEND_CLASS_DTOR, 1, 0);
492 zend_hash_copy(compiler_globals->class_table, global_class_table, zend_class_add_ref);
493
494 zend_set_default_compile_time_values();
495
496 compiler_globals->auto_globals = (HashTable *) malloc(sizeof(HashTable));
497 zend_hash_init_ex(compiler_globals->auto_globals, 8, NULL, auto_global_dtor, 1, 0);
498 zend_hash_copy(compiler_globals->auto_globals, global_auto_globals_table, auto_global_copy_ctor);
499
500 compiler_globals->last_static_member = zend_hash_num_elements(compiler_globals->class_table);
501 if (compiler_globals->last_static_member) {
502 compiler_globals->static_members_table = calloc(compiler_globals->last_static_member, sizeof(zval*));
503 } else {
504 compiler_globals->static_members_table = NULL;
505 }
506 compiler_globals->script_encoding_list = NULL;
507
508 zend_interned_empty_string_init(&compiler_globals->empty_string);
509
510 memset(compiler_globals->one_char_string, 0, sizeof(compiler_globals->one_char_string));
511 }
512 /* }}} */
513
compiler_globals_dtor(zend_compiler_globals * compiler_globals)514 static void compiler_globals_dtor(zend_compiler_globals *compiler_globals) /* {{{ */
515 {
516 if (compiler_globals->function_table != GLOBAL_FUNCTION_TABLE) {
517 zend_hash_destroy(compiler_globals->function_table);
518 free(compiler_globals->function_table);
519 }
520 if (compiler_globals->class_table != GLOBAL_CLASS_TABLE) {
521 zend_hash_destroy(compiler_globals->class_table);
522 free(compiler_globals->class_table);
523 }
524 if (compiler_globals->auto_globals != GLOBAL_AUTO_GLOBALS_TABLE) {
525 zend_hash_destroy(compiler_globals->auto_globals);
526 free(compiler_globals->auto_globals);
527 }
528 if (compiler_globals->static_members_table) {
529 free(compiler_globals->static_members_table);
530 }
531 if (compiler_globals->script_encoding_list) {
532 pefree((char*)compiler_globals->script_encoding_list, 1);
533 }
534 compiler_globals->last_static_member = 0;
535
536 zend_interned_empty_string_free(&compiler_globals->empty_string);
537 }
538 /* }}} */
539
executor_globals_ctor(zend_executor_globals * executor_globals)540 static void executor_globals_ctor(zend_executor_globals *executor_globals) /* {{{ */
541 {
542 ZEND_TSRMLS_CACHE_UPDATE();
543
544 zend_startup_constants();
545 zend_copy_constants(EG(zend_constants), GLOBAL_CONSTANTS_TABLE);
546 zend_init_rsrc_plist();
547 zend_init_exception_op();
548 zend_init_call_trampoline_op();
549 memset(&executor_globals->trampoline, 0, sizeof(zend_op_array));
550 executor_globals->lambda_count = 0;
551 ZVAL_UNDEF(&executor_globals->user_error_handler);
552 ZVAL_UNDEF(&executor_globals->user_exception_handler);
553 executor_globals->in_autoload = NULL;
554 executor_globals->current_execute_data = NULL;
555 executor_globals->current_module = NULL;
556 executor_globals->exit_status = 0;
557 #if XPFPA_HAVE_CW
558 executor_globals->saved_fpu_cw = 0;
559 #endif
560 executor_globals->saved_fpu_cw_ptr = NULL;
561 executor_globals->active = 0;
562 executor_globals->bailout = NULL;
563 executor_globals->error_handling = EH_NORMAL;
564 executor_globals->exception_class = NULL;
565 executor_globals->exception = NULL;
566 executor_globals->objects_store.object_buckets = NULL;
567 #ifdef ZEND_WIN32
568 zend_get_windows_version_info(&executor_globals->windows_version_info);
569 #endif
570 executor_globals->valid_symbol_table = 0;
571 }
572 /* }}} */
573
executor_globals_dtor(zend_executor_globals * executor_globals)574 static void executor_globals_dtor(zend_executor_globals *executor_globals) /* {{{ */
575 {
576 zend_ini_dtor(executor_globals->ini_directives);
577
578 if (&executor_globals->persistent_list != global_persistent_list) {
579 zend_destroy_rsrc_list(&executor_globals->persistent_list);
580 }
581 if (executor_globals->zend_constants != GLOBAL_CONSTANTS_TABLE) {
582 zend_hash_destroy(executor_globals->zend_constants);
583 free(executor_globals->zend_constants);
584 }
585 }
586 /* }}} */
587
zend_new_thread_end_handler(THREAD_T thread_id)588 static void zend_new_thread_end_handler(THREAD_T thread_id) /* {{{ */
589 {
590 if (zend_copy_ini_directives() == SUCCESS) {
591 zend_ini_refresh_caches(ZEND_INI_STAGE_STARTUP);
592 }
593 }
594 /* }}} */
595 #endif
596
597 #if defined(__FreeBSD__) || defined(__DragonFly__)
598 /* FreeBSD and DragonFly floating point precision fix */
599 #include <floatingpoint.h>
600 #endif
601
ini_scanner_globals_ctor(zend_ini_scanner_globals * scanner_globals_p)602 static void ini_scanner_globals_ctor(zend_ini_scanner_globals *scanner_globals_p) /* {{{ */
603 {
604 memset(scanner_globals_p, 0, sizeof(*scanner_globals_p));
605 }
606 /* }}} */
607
php_scanner_globals_ctor(zend_php_scanner_globals * scanner_globals_p)608 static void php_scanner_globals_ctor(zend_php_scanner_globals *scanner_globals_p) /* {{{ */
609 {
610 memset(scanner_globals_p, 0, sizeof(*scanner_globals_p));
611 }
612 /* }}} */
613
614 void zend_init_opcodes_handlers(void);
615
module_destructor_zval(zval * zv)616 static void module_destructor_zval(zval *zv) /* {{{ */
617 {
618 zend_module_entry *module = (zend_module_entry*)Z_PTR_P(zv);
619
620 module_destructor(module);
621 free(module);
622 }
623 /* }}} */
624
php_auto_globals_create_globals(zend_string * name)625 static zend_bool php_auto_globals_create_globals(zend_string *name) /* {{{ */
626 {
627 zval globals;
628
629 ZVAL_ARR(&globals, &EG(symbol_table));
630 Z_TYPE_INFO_P(&globals) = IS_ARRAY | (IS_TYPE_SYMBOLTABLE << Z_TYPE_FLAGS_SHIFT);
631 ZVAL_NEW_REF(&globals, &globals);
632 zend_hash_update(&EG(symbol_table), name, &globals);
633 return 0;
634 }
635 /* }}} */
636
zend_startup(zend_utility_functions * utility_functions,char ** extensions)637 int zend_startup(zend_utility_functions *utility_functions, char **extensions) /* {{{ */
638 {
639 #ifdef ZTS
640 zend_compiler_globals *compiler_globals;
641 zend_executor_globals *executor_globals;
642 extern ZEND_API ts_rsrc_id ini_scanner_globals_id;
643 extern ZEND_API ts_rsrc_id language_scanner_globals_id;
644 ZEND_TSRMLS_CACHE_UPDATE();
645 #else
646 extern zend_ini_scanner_globals ini_scanner_globals;
647 extern zend_php_scanner_globals language_scanner_globals;
648 #endif
649
650 start_memory_manager();
651
652 virtual_cwd_startup(); /* Could use shutdown to free the main cwd but it would just slow it down for CGI */
653
654 #if defined(__FreeBSD__) || defined(__DragonFly__)
655 /* FreeBSD and DragonFly floating point precision fix */
656 fpsetmask(0);
657 #endif
658
659 zend_startup_strtod();
660 zend_startup_extensions_mechanism();
661
662 /* Set up utility functions and values */
663 zend_error_cb = utility_functions->error_function;
664 zend_printf = utility_functions->printf_function;
665 zend_write = (zend_write_func_t) utility_functions->write_function;
666 zend_fopen = utility_functions->fopen_function;
667 if (!zend_fopen) {
668 zend_fopen = zend_fopen_wrapper;
669 }
670 zend_stream_open_function = utility_functions->stream_open_function;
671 zend_message_dispatcher_p = utility_functions->message_handler;
672 #ifndef ZEND_SIGNALS
673 zend_block_interruptions = utility_functions->block_interruptions;
674 zend_unblock_interruptions = utility_functions->unblock_interruptions;
675 #endif
676 zend_get_configuration_directive_p = utility_functions->get_configuration_directive;
677 zend_ticks_function = utility_functions->ticks_function;
678 zend_on_timeout = utility_functions->on_timeout;
679 zend_vspprintf = utility_functions->vspprintf_function;
680 zend_vstrpprintf = utility_functions->vstrpprintf_function;
681 zend_getenv = utility_functions->getenv_function;
682 zend_resolve_path = utility_functions->resolve_path_function;
683
684 #if HAVE_DTRACE
685 /* build with dtrace support */
686 {
687 char *tmp = getenv("USE_ZEND_DTRACE");
688
689 if (tmp && zend_atoi(tmp, 0)) {
690 zend_dtrace_enabled = 1;
691 zend_compile_file = dtrace_compile_file;
692 zend_execute_ex = dtrace_execute_ex;
693 zend_execute_internal = dtrace_execute_internal;
694 } else {
695 zend_compile_file = compile_file;
696 zend_execute_ex = execute_ex;
697 zend_execute_internal = NULL;
698 }
699 }
700 #else
701 zend_compile_file = compile_file;
702 zend_execute_ex = execute_ex;
703 zend_execute_internal = NULL;
704 #endif /* HAVE_DTRACE */
705 zend_compile_string = compile_string;
706 zend_throw_exception_hook = NULL;
707
708 /* Set up the default garbage collection implementation. */
709 gc_collect_cycles = zend_gc_collect_cycles;
710
711 zend_init_opcodes_handlers();
712
713 /* set up version */
714 zend_version_info = strdup(ZEND_CORE_VERSION_INFO);
715 zend_version_info_length = sizeof(ZEND_CORE_VERSION_INFO) - 1;
716
717 GLOBAL_FUNCTION_TABLE = (HashTable *) malloc(sizeof(HashTable));
718 GLOBAL_CLASS_TABLE = (HashTable *) malloc(sizeof(HashTable));
719 GLOBAL_AUTO_GLOBALS_TABLE = (HashTable *) malloc(sizeof(HashTable));
720 GLOBAL_CONSTANTS_TABLE = (HashTable *) malloc(sizeof(HashTable));
721
722 zend_hash_init_ex(GLOBAL_FUNCTION_TABLE, 1024, NULL, ZEND_FUNCTION_DTOR, 1, 0);
723 zend_hash_init_ex(GLOBAL_CLASS_TABLE, 64, NULL, ZEND_CLASS_DTOR, 1, 0);
724 zend_hash_init_ex(GLOBAL_AUTO_GLOBALS_TABLE, 8, NULL, auto_global_dtor, 1, 0);
725 zend_hash_init_ex(GLOBAL_CONSTANTS_TABLE, 128, NULL, ZEND_CONSTANT_DTOR, 1, 0);
726
727 zend_hash_init_ex(&module_registry, 32, NULL, module_destructor_zval, 1, 0);
728 zend_init_rsrc_list_dtors();
729
730 #ifdef ZTS
731 ts_allocate_id(&compiler_globals_id, sizeof(zend_compiler_globals), (ts_allocate_ctor) compiler_globals_ctor, (ts_allocate_dtor) compiler_globals_dtor);
732 ts_allocate_id(&executor_globals_id, sizeof(zend_executor_globals), (ts_allocate_ctor) executor_globals_ctor, (ts_allocate_dtor) executor_globals_dtor);
733 ts_allocate_id(&language_scanner_globals_id, sizeof(zend_php_scanner_globals), (ts_allocate_ctor) php_scanner_globals_ctor, NULL);
734 ts_allocate_id(&ini_scanner_globals_id, sizeof(zend_ini_scanner_globals), (ts_allocate_ctor) ini_scanner_globals_ctor, NULL);
735 compiler_globals = ts_resource(compiler_globals_id);
736 executor_globals = ts_resource(executor_globals_id);
737
738 compiler_globals_dtor(compiler_globals);
739 compiler_globals->in_compilation = 0;
740 compiler_globals->function_table = (HashTable *) malloc(sizeof(HashTable));
741 compiler_globals->class_table = (HashTable *) malloc(sizeof(HashTable));
742
743 *compiler_globals->function_table = *GLOBAL_FUNCTION_TABLE;
744 *compiler_globals->class_table = *GLOBAL_CLASS_TABLE;
745 compiler_globals->auto_globals = GLOBAL_AUTO_GLOBALS_TABLE;
746
747 zend_hash_destroy(executor_globals->zend_constants);
748 *executor_globals->zend_constants = *GLOBAL_CONSTANTS_TABLE;
749 #else
750 ini_scanner_globals_ctor(&ini_scanner_globals);
751 php_scanner_globals_ctor(&language_scanner_globals);
752 zend_set_default_compile_time_values();
753 #ifdef ZEND_WIN32
754 zend_get_windows_version_info(&EG(windows_version_info));
755 #endif
756 #endif
757 EG(error_reporting) = E_ALL & ~E_NOTICE;
758
759 zend_interned_strings_init();
760 zend_startup_builtin_functions();
761 zend_register_standard_constants();
762 zend_register_auto_global(zend_string_init("GLOBALS", sizeof("GLOBALS") - 1, 1), 1, php_auto_globals_create_globals);
763
764 #ifndef ZTS
765 zend_init_rsrc_plist();
766 zend_init_exception_op();
767 zend_init_call_trampoline_op();
768 #endif
769
770 zend_ini_startup();
771
772 #ifdef ZTS
773 tsrm_set_new_thread_end_handler(zend_new_thread_end_handler);
774 #endif
775
776 return SUCCESS;
777 }
778 /* }}} */
779
zend_register_standard_ini_entries(void)780 void zend_register_standard_ini_entries(void) /* {{{ */
781 {
782 int module_number = 0;
783
784 REGISTER_INI_ENTRIES();
785 }
786 /* }}} */
787
788 /* Unlink the global (r/o) copies of the class, function and constant tables,
789 * and use a fresh r/w copy for the startup thread
790 */
zend_post_startup(void)791 void zend_post_startup(void) /* {{{ */
792 {
793 #ifdef ZTS
794 zend_encoding **script_encoding_list;
795
796 zend_compiler_globals *compiler_globals = ts_resource(compiler_globals_id);
797 zend_executor_globals *executor_globals = ts_resource(executor_globals_id);
798
799 *GLOBAL_FUNCTION_TABLE = *compiler_globals->function_table;
800 *GLOBAL_CLASS_TABLE = *compiler_globals->class_table;
801 *GLOBAL_CONSTANTS_TABLE = *executor_globals->zend_constants;
802
803 short_tags_default = CG(short_tags);
804 compiler_options_default = CG(compiler_options);
805
806 zend_destroy_rsrc_list(&EG(persistent_list));
807 free(compiler_globals->function_table);
808 free(compiler_globals->class_table);
809 if ((script_encoding_list = (zend_encoding **)compiler_globals->script_encoding_list)) {
810 compiler_globals_ctor(compiler_globals);
811 compiler_globals->script_encoding_list = (const zend_encoding **)script_encoding_list;
812 } else {
813 compiler_globals_ctor(compiler_globals);
814 }
815 free(EG(zend_constants));
816
817 virtual_cwd_deactivate();
818
819 executor_globals_ctor(executor_globals);
820 global_persistent_list = &EG(persistent_list);
821 zend_copy_ini_directives();
822 #else
823 virtual_cwd_deactivate();
824 #endif
825 }
826 /* }}} */
827
zend_shutdown(void)828 void zend_shutdown(void) /* {{{ */
829 {
830 zend_destroy_rsrc_list(&EG(persistent_list));
831 if (EG(active))
832 {
833 /*
834 * The order of destruction is important here.
835 * See bugs #65463 and 66036.
836 */
837 zend_function *func;
838 zend_class_entry *ce;
839
840 ZEND_HASH_REVERSE_FOREACH_PTR(GLOBAL_FUNCTION_TABLE, func) {
841 if (func->type == ZEND_USER_FUNCTION) {
842 zend_cleanup_op_array_data((zend_op_array *) func);
843 }
844 } ZEND_HASH_FOREACH_END();
845 ZEND_HASH_REVERSE_FOREACH_PTR(GLOBAL_CLASS_TABLE, ce) {
846 if (ce->type == ZEND_USER_CLASS) {
847 zend_cleanup_user_class_data(ce);
848 } else {
849 break;
850 }
851 } ZEND_HASH_FOREACH_END();
852 zend_cleanup_internal_classes();
853 zend_hash_reverse_apply(GLOBAL_FUNCTION_TABLE, (apply_func_t) clean_non_persistent_function_full);
854 zend_hash_reverse_apply(GLOBAL_CLASS_TABLE, (apply_func_t) clean_non_persistent_class_full);
855 }
856 zend_destroy_modules();
857
858 virtual_cwd_deactivate();
859 virtual_cwd_shutdown();
860
861 zend_hash_destroy(GLOBAL_FUNCTION_TABLE);
862 zend_hash_destroy(GLOBAL_CLASS_TABLE);
863
864 zend_hash_destroy(GLOBAL_AUTO_GLOBALS_TABLE);
865 free(GLOBAL_AUTO_GLOBALS_TABLE);
866
867 zend_shutdown_extensions();
868 free(zend_version_info);
869
870 free(GLOBAL_FUNCTION_TABLE);
871 free(GLOBAL_CLASS_TABLE);
872
873 zend_hash_destroy(GLOBAL_CONSTANTS_TABLE);
874 free(GLOBAL_CONSTANTS_TABLE);
875 zend_shutdown_strtod();
876
877 #ifdef ZTS
878 GLOBAL_FUNCTION_TABLE = NULL;
879 GLOBAL_CLASS_TABLE = NULL;
880 GLOBAL_AUTO_GLOBALS_TABLE = NULL;
881 GLOBAL_CONSTANTS_TABLE = NULL;
882 #endif
883 zend_destroy_rsrc_list_dtors();
884
885 zend_interned_strings_dtor();
886 }
887 /* }}} */
888
zend_set_utility_values(zend_utility_values * utility_values)889 void zend_set_utility_values(zend_utility_values *utility_values) /* {{{ */
890 {
891 zend_uv = *utility_values;
892 zend_uv.import_use_extension_length = (uint)strlen(zend_uv.import_use_extension);
893 }
894 /* }}} */
895
896 /* this should be compatible with the standard zenderror */
zenderror(const char * error)897 ZEND_COLD void zenderror(const char *error) /* {{{ */
898 {
899 CG(parse_error) = 0;
900
901 if (EG(exception)) {
902 /* An exception was thrown in the lexer, don't throw another in the parser. */
903 return;
904 }
905
906 zend_throw_exception(zend_ce_parse_error, error, 0);
907 }
908 /* }}} */
909
BEGIN_EXTERN_C()910 BEGIN_EXTERN_C()
911 ZEND_API ZEND_COLD void _zend_bailout(char *filename, uint lineno) /* {{{ */
912 {
913
914 if (!EG(bailout)) {
915 zend_output_debug_string(1, "%s(%d) : Bailed out without a bailout address!", filename, lineno);
916 exit(-1);
917 }
918 CG(unclean_shutdown) = 1;
919 CG(active_class_entry) = NULL;
920 CG(in_compilation) = 0;
921 EG(current_execute_data) = NULL;
922 LONGJMP(*EG(bailout), FAILURE);
923 }
924 /* }}} */
END_EXTERN_C()925 END_EXTERN_C()
926
927 ZEND_API void zend_append_version_info(const zend_extension *extension) /* {{{ */
928 {
929 char *new_info;
930 uint new_info_length;
931
932 new_info_length = (uint)(sizeof(" with v, , by \n")
933 + strlen(extension->name)
934 + strlen(extension->version)
935 + strlen(extension->copyright)
936 + strlen(extension->author));
937
938 new_info = (char *) malloc(new_info_length + 1);
939
940 snprintf(new_info, new_info_length, " with %s v%s, %s, by %s\n", extension->name, extension->version, extension->copyright, extension->author);
941
942 zend_version_info = (char *) realloc(zend_version_info, zend_version_info_length+new_info_length + 1);
943 strncat(zend_version_info, new_info, new_info_length);
944 zend_version_info_length += new_info_length;
945 free(new_info);
946 }
947 /* }}} */
948
get_zend_version(void)949 ZEND_API char *get_zend_version(void) /* {{{ */
950 {
951 return zend_version_info;
952 }
953 /* }}} */
954
zend_activate(void)955 ZEND_API void zend_activate(void) /* {{{ */
956 {
957 #ifdef ZTS
958 virtual_cwd_activate();
959 #endif
960 gc_reset();
961 init_compiler();
962 init_executor();
963 startup_scanner();
964 }
965 /* }}} */
966
zend_call_destructors(void)967 void zend_call_destructors(void) /* {{{ */
968 {
969 zend_try {
970 shutdown_destructors();
971 } zend_end_try();
972 }
973 /* }}} */
974
zend_deactivate(void)975 ZEND_API void zend_deactivate(void) /* {{{ */
976 {
977 /* we're no longer executing anything */
978 EG(current_execute_data) = NULL;
979
980 zend_try {
981 shutdown_scanner();
982 } zend_end_try();
983
984 /* shutdown_executor() takes care of its own bailout handling */
985 shutdown_executor();
986
987 zend_try {
988 zend_ini_deactivate();
989 } zend_end_try();
990
991 zend_try {
992 shutdown_compiler();
993 } zend_end_try();
994
995 zend_destroy_rsrc_list(&EG(regular_list));
996
997 #if GC_BENCH
998 fprintf(stderr, "GC Statistics\n");
999 fprintf(stderr, "-------------\n");
1000 fprintf(stderr, "Runs: %d\n", GC_G(gc_runs));
1001 fprintf(stderr, "Collected: %d\n", GC_G(collected));
1002 fprintf(stderr, "Root buffer length: %d\n", GC_G(root_buf_length));
1003 fprintf(stderr, "Root buffer peak: %d\n\n", GC_G(root_buf_peak));
1004 fprintf(stderr, " Possible Remove from Marked\n");
1005 fprintf(stderr, " Root Buffered buffer grey\n");
1006 fprintf(stderr, " -------- -------- ----------- ------\n");
1007 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));
1008 #endif
1009 }
1010 /* }}} */
1011
BEGIN_EXTERN_C()1012 BEGIN_EXTERN_C()
1013 ZEND_API void zend_message_dispatcher(zend_long message, const void *data) /* {{{ */
1014 {
1015 if (zend_message_dispatcher_p) {
1016 zend_message_dispatcher_p(message, data);
1017 }
1018 }
1019 /* }}} */
END_EXTERN_C()1020 END_EXTERN_C()
1021
1022 ZEND_API zval *zend_get_configuration_directive(zend_string *name) /* {{{ */
1023 {
1024 if (zend_get_configuration_directive_p) {
1025 return zend_get_configuration_directive_p(name);
1026 } else {
1027 return NULL;
1028 }
1029 }
1030 /* }}} */
1031
1032 #define SAVE_STACK(stack) do { \
1033 if (CG(stack).top) { \
1034 memcpy(&stack, &CG(stack), sizeof(zend_stack)); \
1035 CG(stack).top = CG(stack).max = 0; \
1036 CG(stack).elements = NULL; \
1037 } else { \
1038 stack.top = 0; \
1039 } \
1040 } while (0)
1041
1042 #define RESTORE_STACK(stack) do { \
1043 if (stack.top) { \
1044 zend_stack_destroy(&CG(stack)); \
1045 memcpy(&CG(stack), &stack, sizeof(zend_stack)); \
1046 } \
1047 } while (0)
1048
1049 #if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
zend_error(int type,const char * format,...)1050 ZEND_API ZEND_COLD void zend_error(int type, const char *format, ...) /* {{{ */
1051 #else
1052 static ZEND_COLD void zend_error_va_list(int type, const char *format, va_list args)
1053 #endif
1054 {
1055 char *str;
1056 int len;
1057 #if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1058 va_list args;
1059 #endif
1060 va_list usr_copy;
1061 zval params[5];
1062 zval retval;
1063 const char *error_filename;
1064 uint error_lineno = 0;
1065 zval orig_user_error_handler;
1066 zend_bool in_compilation;
1067 zend_class_entry *saved_class_entry;
1068 zend_stack loop_var_stack;
1069 zend_stack delayed_oplines_stack;
1070 zend_array *symbol_table;
1071
1072 /* Report about uncaught exception in case of fatal errors */
1073 if (EG(exception)) {
1074 zend_execute_data *ex;
1075 const zend_op *opline;
1076
1077 switch (type) {
1078 case E_CORE_ERROR:
1079 case E_ERROR:
1080 case E_RECOVERABLE_ERROR:
1081 case E_PARSE:
1082 case E_COMPILE_ERROR:
1083 case E_USER_ERROR:
1084 ex = EG(current_execute_data);
1085 opline = NULL;
1086 while (ex && (!ex->func || !ZEND_USER_CODE(ex->func->type))) {
1087 ex = ex->prev_execute_data;
1088 }
1089 if (ex && ex->opline->opcode == ZEND_HANDLE_EXCEPTION &&
1090 EG(opline_before_exception)) {
1091 opline = EG(opline_before_exception);
1092 }
1093 zend_exception_error(EG(exception), E_WARNING);
1094 EG(exception) = NULL;
1095 if (opline) {
1096 ex->opline = opline;
1097 }
1098 break;
1099 default:
1100 break;
1101 }
1102 }
1103
1104 /* Obtain relevant filename and lineno */
1105 switch (type) {
1106 case E_CORE_ERROR:
1107 case E_CORE_WARNING:
1108 error_filename = NULL;
1109 error_lineno = 0;
1110 break;
1111 case E_PARSE:
1112 case E_COMPILE_ERROR:
1113 case E_COMPILE_WARNING:
1114 case E_ERROR:
1115 case E_NOTICE:
1116 case E_STRICT:
1117 case E_DEPRECATED:
1118 case E_WARNING:
1119 case E_USER_ERROR:
1120 case E_USER_WARNING:
1121 case E_USER_NOTICE:
1122 case E_USER_DEPRECATED:
1123 case E_RECOVERABLE_ERROR:
1124 if (zend_is_compiling()) {
1125 error_filename = ZSTR_VAL(zend_get_compiled_filename());
1126 error_lineno = zend_get_compiled_lineno();
1127 } else if (zend_is_executing()) {
1128 error_filename = zend_get_executed_filename();
1129 if (error_filename[0] == '[') { /* [no active file] */
1130 error_filename = NULL;
1131 error_lineno = 0;
1132 } else {
1133 error_lineno = zend_get_executed_lineno();
1134 }
1135 } else {
1136 error_filename = NULL;
1137 error_lineno = 0;
1138 }
1139 break;
1140 default:
1141 error_filename = NULL;
1142 error_lineno = 0;
1143 break;
1144 }
1145 if (!error_filename) {
1146 error_filename = "Unknown";
1147 }
1148
1149 #ifdef HAVE_DTRACE
1150 if (DTRACE_ERROR_ENABLED()) {
1151 char *dtrace_error_buffer;
1152 #if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1153 va_start(args, format);
1154 #endif
1155 zend_vspprintf(&dtrace_error_buffer, 0, format, args);
1156 DTRACE_ERROR(dtrace_error_buffer, (char *)error_filename, error_lineno);
1157 efree(dtrace_error_buffer);
1158 #if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1159 va_end(args);
1160 #endif
1161 }
1162 #endif /* HAVE_DTRACE */
1163
1164 #if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1165 va_start(args, format);
1166 #endif
1167
1168 /* if we don't have a user defined error handler */
1169 if (Z_TYPE(EG(user_error_handler)) == IS_UNDEF
1170 || !(EG(user_error_handler_error_reporting) & type)
1171 || EG(error_handling) != EH_NORMAL) {
1172 zend_error_cb(type, error_filename, error_lineno, format, args);
1173 } else switch (type) {
1174 case E_ERROR:
1175 case E_PARSE:
1176 case E_CORE_ERROR:
1177 case E_CORE_WARNING:
1178 case E_COMPILE_ERROR:
1179 case E_COMPILE_WARNING:
1180 /* The error may not be safe to handle in user-space */
1181 zend_error_cb(type, error_filename, error_lineno, format, args);
1182 break;
1183 default:
1184 /* Handle the error in user space */
1185 /* va_copy() is __va_copy() in old gcc versions.
1186 * According to the autoconf manual, using
1187 * memcpy(&dst, &src, sizeof(va_list))
1188 * gives maximum portability. */
1189 #ifndef va_copy
1190 # ifdef __va_copy
1191 # define va_copy(dest, src) __va_copy((dest), (src))
1192 # else
1193 # define va_copy(dest, src) memcpy(&(dest), &(src), sizeof(va_list))
1194 # endif
1195 #endif
1196 va_copy(usr_copy, args);
1197 len = (int)zend_vspprintf(&str, 0, format, usr_copy);
1198 ZVAL_NEW_STR(¶ms[1], zend_string_init(str, len, 0));
1199 efree(str);
1200 #ifdef va_copy
1201 va_end(usr_copy);
1202 #endif
1203
1204 ZVAL_LONG(¶ms[0], type);
1205
1206 if (error_filename) {
1207 ZVAL_STRING(¶ms[2], error_filename);
1208 } else {
1209 ZVAL_NULL(¶ms[2]);
1210 }
1211
1212 ZVAL_LONG(¶ms[3], error_lineno);
1213
1214 symbol_table = zend_rebuild_symbol_table();
1215
1216 /* during shutdown the symbol table table can be still null */
1217 if (!symbol_table) {
1218 ZVAL_NULL(¶ms[4]);
1219 } else {
1220 ZVAL_ARR(¶ms[4], zend_array_dup(symbol_table));
1221 }
1222
1223 ZVAL_COPY_VALUE(&orig_user_error_handler, &EG(user_error_handler));
1224 ZVAL_UNDEF(&EG(user_error_handler));
1225
1226 /* User error handler may include() additinal PHP files.
1227 * If an error was generated during comilation PHP will compile
1228 * such scripts recursivly, but some CG() variables may be
1229 * inconsistent. */
1230
1231 in_compilation = CG(in_compilation);
1232 if (in_compilation) {
1233 saved_class_entry = CG(active_class_entry);
1234 CG(active_class_entry) = NULL;
1235 SAVE_STACK(loop_var_stack);
1236 SAVE_STACK(delayed_oplines_stack);
1237 CG(in_compilation) = 0;
1238 }
1239
1240 if (call_user_function_ex(CG(function_table), NULL, &orig_user_error_handler, &retval, 5, params, 1, NULL) == SUCCESS) {
1241 if (Z_TYPE(retval) != IS_UNDEF) {
1242 if (Z_TYPE(retval) == IS_FALSE) {
1243 zend_error_cb(type, error_filename, error_lineno, format, args);
1244 }
1245 zval_ptr_dtor(&retval);
1246 }
1247 } else if (!EG(exception)) {
1248 /* The user error handler failed, use built-in error handler */
1249 zend_error_cb(type, error_filename, error_lineno, format, args);
1250 }
1251
1252 if (in_compilation) {
1253 CG(active_class_entry) = saved_class_entry;
1254 RESTORE_STACK(loop_var_stack);
1255 RESTORE_STACK(delayed_oplines_stack);
1256 CG(in_compilation) = 1;
1257 }
1258
1259 zval_ptr_dtor(¶ms[4]);
1260 zval_ptr_dtor(¶ms[3]);
1261 zval_ptr_dtor(¶ms[2]);
1262 zval_ptr_dtor(¶ms[1]);
1263 zval_ptr_dtor(¶ms[0]);
1264
1265 if (Z_TYPE(EG(user_error_handler)) == IS_UNDEF) {
1266 ZVAL_COPY_VALUE(&EG(user_error_handler), &orig_user_error_handler);
1267 } else {
1268 zval_ptr_dtor(&orig_user_error_handler);
1269 }
1270 break;
1271 }
1272
1273 #if !defined(HAVE_NORETURN) || defined(HAVE_NORETURN_ALIAS)
1274 va_end(args);
1275 #endif
1276
1277 if (type == E_PARSE) {
1278 /* eval() errors do not affect exit_status */
1279 if (!(EG(current_execute_data) &&
1280 EG(current_execute_data)->func &&
1281 ZEND_USER_CODE(EG(current_execute_data)->func->type) &&
1282 EG(current_execute_data)->opline->opcode == ZEND_INCLUDE_OR_EVAL &&
1283 EG(current_execute_data)->opline->extended_value == ZEND_EVAL)) {
1284 EG(exit_status) = 255;
1285 }
1286 }
1287 }
1288 /* }}} */
1289
1290 #ifdef HAVE_NORETURN
1291 # ifdef HAVE_NORETURN_ALIAS
1292 ZEND_COLD void zend_error_noreturn(int type, const char *format, ...) __attribute__ ((alias("zend_error"),noreturn));
1293 # else
zend_error(int type,const char * format,...)1294 ZEND_API ZEND_COLD void zend_error(int type, const char *format, ...) /* {{{ */
1295 {
1296 va_list va;
1297
1298 va_start(va, format);
1299 zend_error_va_list(type, format, va);
1300 va_end(va);
1301 }
1302
zend_error_noreturn(int type,const char * format,...)1303 ZEND_API ZEND_COLD ZEND_NORETURN void zend_error_noreturn(int type, const char *format, ...)
1304 {
1305 va_list va;
1306
1307 va_start(va, format);
1308 zend_error_va_list(type, format, va);
1309 va_end(va);
1310 }
1311 /* }}} */
1312 # endif
1313 #endif
1314
zend_throw_error(zend_class_entry * exception_ce,const char * format,...)1315 ZEND_API ZEND_COLD void zend_throw_error(zend_class_entry *exception_ce, const char *format, ...) /* {{{ */
1316 {
1317 va_list va;
1318 char *message = NULL;
1319
1320 if (exception_ce) {
1321 if (!instanceof_function(exception_ce, zend_ce_error)) {
1322 zend_error(E_NOTICE, "Error exceptions must be derived from Error");
1323 exception_ce = zend_ce_error;
1324 }
1325 } else {
1326 exception_ce = zend_ce_error;
1327 }
1328
1329 va_start(va, format);
1330 zend_vspprintf(&message, 0, format, va);
1331
1332 //TODO: we can't convert compile-time errors to exceptions yet???
1333 if (EG(current_execute_data) && !CG(in_compilation)) {
1334 zend_throw_exception(exception_ce, message, 0);
1335 } else {
1336 zend_error(E_ERROR, "%s", message);
1337 }
1338
1339 efree(message);
1340 va_end(va);
1341 }
1342 /* }}} */
1343
zend_type_error(const char * format,...)1344 ZEND_API ZEND_COLD void zend_type_error(const char *format, ...) /* {{{ */
1345 {
1346 va_list va;
1347 char *message = NULL;
1348
1349 va_start(va, format);
1350 zend_vspprintf(&message, 0, format, va);
1351 zend_throw_exception(zend_ce_type_error, message, 0);
1352 efree(message);
1353 va_end(va);
1354 } /* }}} */
1355
zend_internal_type_error(zend_bool throw_exception,const char * format,...)1356 ZEND_API ZEND_COLD void zend_internal_type_error(zend_bool throw_exception, const char *format, ...) /* {{{ */
1357 {
1358 va_list va;
1359 char *message = NULL;
1360
1361 va_start(va, format);
1362 zend_vspprintf(&message, 0, format, va);
1363 if (throw_exception) {
1364 zend_throw_exception(zend_ce_type_error, message, 0);
1365 } else {
1366 zend_error(E_WARNING, "%s", message);
1367 }
1368 efree(message);
1369
1370 va_end(va);
1371 } /* }}} */
1372
zend_output_debug_string(zend_bool trigger_break,const char * format,...)1373 ZEND_API ZEND_COLD void zend_output_debug_string(zend_bool trigger_break, const char *format, ...) /* {{{ */
1374 {
1375 #if ZEND_DEBUG
1376 va_list args;
1377
1378 va_start(args, format);
1379 # ifdef ZEND_WIN32
1380 {
1381 char output_buf[1024];
1382
1383 vsnprintf(output_buf, 1024, format, args);
1384 OutputDebugString(output_buf);
1385 OutputDebugString("\n");
1386 if (trigger_break && IsDebuggerPresent()) {
1387 DebugBreak();
1388 }
1389 }
1390 # else
1391 vfprintf(stderr, format, args);
1392 fprintf(stderr, "\n");
1393 # endif
1394 va_end(args);
1395 #endif
1396 }
1397 /* }}} */
1398
zend_try_exception_handler()1399 ZEND_API void zend_try_exception_handler() /* {{{ */
1400 {
1401 if (EG(exception)) {
1402 if (Z_TYPE(EG(user_exception_handler)) != IS_UNDEF) {
1403 zval orig_user_exception_handler;
1404 zval params[1], retval2;
1405 zend_object *old_exception;
1406 old_exception = EG(exception);
1407 EG(exception) = NULL;
1408 ZVAL_OBJ(¶ms[0], old_exception);
1409 ZVAL_COPY_VALUE(&orig_user_exception_handler, &EG(user_exception_handler));
1410
1411 if (call_user_function_ex(CG(function_table), NULL, &orig_user_exception_handler, &retval2, 1, params, 1, NULL) == SUCCESS) {
1412 zval_ptr_dtor(&retval2);
1413 if (EG(exception)) {
1414 OBJ_RELEASE(EG(exception));
1415 EG(exception) = NULL;
1416 }
1417 OBJ_RELEASE(old_exception);
1418 } else {
1419 EG(exception) = old_exception;
1420 }
1421 }
1422 }
1423 } /* }}} */
1424
zend_execute_scripts(int type,zval * retval,int file_count,...)1425 ZEND_API int zend_execute_scripts(int type, zval *retval, int file_count, ...) /* {{{ */
1426 {
1427 va_list files;
1428 int i;
1429 zend_file_handle *file_handle;
1430 zend_op_array *op_array;
1431
1432 va_start(files, file_count);
1433 for (i = 0; i < file_count; i++) {
1434 file_handle = va_arg(files, zend_file_handle *);
1435 if (!file_handle) {
1436 continue;
1437 }
1438
1439 op_array = zend_compile_file(file_handle, type);
1440 if (file_handle->opened_path) {
1441 zend_hash_add_empty_element(&EG(included_files), file_handle->opened_path);
1442 }
1443 zend_destroy_file_handle(file_handle);
1444 if (op_array) {
1445 zend_execute(op_array, retval);
1446 zend_exception_restore();
1447 zend_try_exception_handler();
1448 if (EG(exception)) {
1449 zend_exception_error(EG(exception), E_ERROR);
1450 }
1451 destroy_op_array(op_array);
1452 efree_size(op_array, sizeof(zend_op_array));
1453 } else if (type==ZEND_REQUIRE) {
1454 va_end(files);
1455 return FAILURE;
1456 }
1457 }
1458 va_end(files);
1459
1460 return SUCCESS;
1461 }
1462 /* }}} */
1463
1464 #define COMPILED_STRING_DESCRIPTION_FORMAT "%s(%d) : %s"
1465
zend_make_compiled_string_description(const char * name)1466 ZEND_API char *zend_make_compiled_string_description(const char *name) /* {{{ */
1467 {
1468 const char *cur_filename;
1469 int cur_lineno;
1470 char *compiled_string_description;
1471
1472 if (zend_is_compiling()) {
1473 cur_filename = ZSTR_VAL(zend_get_compiled_filename());
1474 cur_lineno = zend_get_compiled_lineno();
1475 } else if (zend_is_executing()) {
1476 cur_filename = zend_get_executed_filename();
1477 cur_lineno = zend_get_executed_lineno();
1478 } else {
1479 cur_filename = "Unknown";
1480 cur_lineno = 0;
1481 }
1482
1483 zend_spprintf(&compiled_string_description, 0, COMPILED_STRING_DESCRIPTION_FORMAT, cur_filename, cur_lineno, name);
1484 return compiled_string_description;
1485 }
1486 /* }}} */
1487
free_estring(char ** str_p)1488 void free_estring(char **str_p) /* {{{ */
1489 {
1490 efree(*str_p);
1491 }
1492 /* }}} */
1493
1494 /*
1495 * Local variables:
1496 * tab-width: 4
1497 * c-basic-offset: 4
1498 * indent-tabs-mode: t
1499 * End:
1500 */
1501
