1 /*
2 +----------------------------------------------------------------------+
3 | Copyright (c) The PHP Group |
4 +----------------------------------------------------------------------+
5 | This source file is subject to version 3.01 of the PHP license, |
6 | that is bundled with this package in the file LICENSE, and is |
7 | available through the world-wide-web at the following url: |
8 | http://www.php.net/license/3_01.txt |
9 | If you did not receive a copy of the PHP license and are unable to |
10 | obtain it through the world-wide-web, please send a note to |
11 | license@php.net so we can mail you a copy immediately. |
12 +----------------------------------------------------------------------+
13 | Authors: Felipe Pena <felipe@php.net> |
14 | Authors: Joe Watkins <joe.watkins@live.co.uk> |
15 | Authors: Bob Weinand <bwoebi@php.net> |
16 +----------------------------------------------------------------------+
17 */
18
19 #include "zend.h"
20
21 #include "php.h"
22 #include "phpdbg.h"
23 #include "phpdbg_opcode.h"
24 #include "phpdbg_utils.h"
25 #include "ext/standard/php_string.h"
26
27 /* FASYNC under Solaris */
28 #ifdef HAVE_SYS_FILE_H
29 # include <sys/file.h>
30 #endif
31
32 #ifdef HAVE_SYS_IOCTL_H
33 # include "sys/ioctl.h"
34 # ifndef GWINSZ_IN_SYS_IOCTL
35 # include <termios.h>
36 # endif
37 #endif
38
39 ZEND_EXTERN_MODULE_GLOBALS(phpdbg)
40
41 /* {{{ color structures */
42 static const phpdbg_color_t colors[] = {
43 PHPDBG_COLOR_D("none", "0;0"),
44
45 PHPDBG_COLOR_D("white", "0;64"),
46 PHPDBG_COLOR_D("white-bold", "1;64"),
47 PHPDBG_COLOR_D("white-underline", "4;64"),
48 PHPDBG_COLOR_D("red", "0;31"),
49 PHPDBG_COLOR_D("red-bold", "1;31"),
50 PHPDBG_COLOR_D("red-underline", "4;31"),
51 PHPDBG_COLOR_D("green", "0;32"),
52 PHPDBG_COLOR_D("green-bold", "1;32"),
53 PHPDBG_COLOR_D("green-underline", "4;32"),
54 PHPDBG_COLOR_D("yellow", "0;33"),
55 PHPDBG_COLOR_D("yellow-bold", "1;33"),
56 PHPDBG_COLOR_D("yellow-underline", "4;33"),
57 PHPDBG_COLOR_D("blue", "0;34"),
58 PHPDBG_COLOR_D("blue-bold", "1;34"),
59 PHPDBG_COLOR_D("blue-underline", "4;34"),
60 PHPDBG_COLOR_D("purple", "0;35"),
61 PHPDBG_COLOR_D("purple-bold", "1;35"),
62 PHPDBG_COLOR_D("purple-underline", "4;35"),
63 PHPDBG_COLOR_D("cyan", "0;36"),
64 PHPDBG_COLOR_D("cyan-bold", "1;36"),
65 PHPDBG_COLOR_D("cyan-underline", "4;36"),
66 PHPDBG_COLOR_D("black", "0;30"),
67 PHPDBG_COLOR_D("black-bold", "1;30"),
68 PHPDBG_COLOR_D("black-underline", "4;30"),
69 PHPDBG_COLOR_END
70 }; /* }}} */
71
72 /* {{{ */
73 static const phpdbg_element_t elements[] = {
74 PHPDBG_ELEMENT_D("prompt", PHPDBG_COLOR_PROMPT),
75 PHPDBG_ELEMENT_D("error", PHPDBG_COLOR_ERROR),
76 PHPDBG_ELEMENT_D("notice", PHPDBG_COLOR_NOTICE),
77 PHPDBG_ELEMENT_END
78 }; /* }}} */
79
phpdbg_is_numeric(const char * str)80 PHPDBG_API int phpdbg_is_numeric(const char *str) /* {{{ */
81 {
82 if (!str)
83 return 0;
84
85 for (; *str; str++) {
86 if (isspace(*str) || *str == '-') {
87 continue;
88 }
89 return isdigit(*str);
90 }
91 return 0;
92 } /* }}} */
93
phpdbg_is_empty(const char * str)94 PHPDBG_API int phpdbg_is_empty(const char *str) /* {{{ */
95 {
96 if (!str)
97 return 1;
98
99 for (; *str; str++) {
100 if (isspace(*str)) {
101 continue;
102 }
103 return 0;
104 }
105 return 1;
106 } /* }}} */
107
phpdbg_is_addr(const char * str)108 PHPDBG_API int phpdbg_is_addr(const char *str) /* {{{ */
109 {
110 return str[0] && str[1] && memcmp(str, "0x", 2) == 0;
111 } /* }}} */
112
phpdbg_is_class_method(const char * str,size_t len,char ** class,char ** method)113 PHPDBG_API int phpdbg_is_class_method(const char *str, size_t len, char **class, char **method) /* {{{ */
114 {
115 char *sep = NULL;
116
117 if (strstr(str, "#") != NULL)
118 return 0;
119
120 if (strstr(str, " ") != NULL)
121 return 0;
122
123 sep = strstr(str, "::");
124
125 if (!sep || sep == str || sep+2 == str+len-1) {
126 return 0;
127 }
128
129 if (class != NULL) {
130
131 if (str[0] == '\\') {
132 str++;
133 len--;
134 }
135
136 *class = estrndup(str, sep - str);
137 (*class)[sep - str] = 0;
138 }
139
140 if (method != NULL) {
141 *method = estrndup(sep+2, str + len - (sep + 2));
142 }
143
144 return 1;
145 } /* }}} */
146
phpdbg_resolve_path(const char * path)147 PHPDBG_API char *phpdbg_resolve_path(const char *path) /* {{{ */
148 {
149 char resolved_name[MAXPATHLEN];
150
151 if (expand_filepath(path, resolved_name) == NULL) {
152 return NULL;
153 }
154
155 return strdup(resolved_name);
156 } /* }}} */
157
phpdbg_current_file(void)158 PHPDBG_API const char *phpdbg_current_file(void) /* {{{ */
159 {
160 const char *file = zend_get_executed_filename();
161
162 if (memcmp(file, "[no active file]", sizeof("[no active file]")) == 0) {
163 return PHPDBG_G(exec);
164 }
165
166 return file;
167 } /* }}} */
168
phpdbg_get_function(const char * fname,const char * cname)169 PHPDBG_API const zend_function *phpdbg_get_function(const char *fname, const char *cname) /* {{{ */
170 {
171 zend_function *func = NULL;
172 zend_string *lfname = zend_string_init(fname, strlen(fname), 0);
173 zend_string *tmp = zend_string_tolower(lfname);
174 zend_string_release(lfname);
175 lfname = tmp;
176
177 if (cname) {
178 zend_class_entry *ce;
179 zend_string *lcname = zend_string_init(cname, strlen(cname), 0);
180 tmp = zend_string_tolower(lcname);
181 zend_string_release(lcname);
182 lcname = tmp;
183 ce = zend_lookup_class(lcname);
184
185 zend_string_release(lcname);
186
187 if (ce) {
188 func = zend_hash_find_ptr(&ce->function_table, lfname);
189 }
190 } else {
191 func = zend_hash_find_ptr(EG(function_table), lfname);
192 }
193
194 zend_string_release(lfname);
195 return func;
196 } /* }}} */
197
phpdbg_trim(const char * str,size_t len,size_t * new_len)198 PHPDBG_API char *phpdbg_trim(const char *str, size_t len, size_t *new_len) /* {{{ */
199 {
200 const char *p = str;
201 char *new = NULL;
202
203 while (p && isspace(*p)) {
204 ++p;
205 --len;
206 }
207
208 while (*p && isspace(*(p + len -1))) {
209 --len;
210 }
211
212 if (len == 0) {
213 new = estrndup("", sizeof(""));
214 *new_len = 0;
215 } else {
216 new = estrndup(p, len);
217 *(new + len) = '\0';
218
219 if (new_len) {
220 *new_len = len;
221 }
222 }
223
224 return new;
225
226 } /* }}} */
227
phpdbg_get_color(const char * name,size_t name_length)228 PHPDBG_API const phpdbg_color_t *phpdbg_get_color(const char *name, size_t name_length) /* {{{ */
229 {
230 const phpdbg_color_t *color = colors;
231
232 while (color && color->name) {
233 if (name_length == color->name_length &&
234 memcmp(name, color->name, name_length) == SUCCESS) {
235 phpdbg_debug("phpdbg_get_color(%s, %lu): %s", name, name_length, color->code);
236 return color;
237 }
238 ++color;
239 }
240
241 phpdbg_debug("phpdbg_get_color(%s, %lu): failed", name, name_length);
242
243 return NULL;
244 } /* }}} */
245
phpdbg_set_color(int element,const phpdbg_color_t * color)246 PHPDBG_API void phpdbg_set_color(int element, const phpdbg_color_t *color) /* {{{ */
247 {
248 PHPDBG_G(colors)[element] = color;
249 } /* }}} */
250
phpdbg_set_color_ex(int element,const char * name,size_t name_length)251 PHPDBG_API void phpdbg_set_color_ex(int element, const char *name, size_t name_length) /* {{{ */
252 {
253 const phpdbg_color_t *color = phpdbg_get_color(name, name_length);
254
255 if (color) {
256 phpdbg_set_color(element, color);
257 } else PHPDBG_G(colors)[element] = colors;
258 } /* }}} */
259
phpdbg_get_colors(void)260 PHPDBG_API const phpdbg_color_t* phpdbg_get_colors(void) /* {{{ */
261 {
262 return colors;
263 } /* }}} */
264
phpdbg_get_element(const char * name,size_t len)265 PHPDBG_API int phpdbg_get_element(const char *name, size_t len) {
266 const phpdbg_element_t *element = elements;
267
268 while (element && element->name) {
269 if (len == element->name_length) {
270 if (strncasecmp(name, element->name, len) == SUCCESS) {
271 return element->id;
272 }
273 }
274 element++;
275 }
276
277 return PHPDBG_COLOR_INVALID;
278 }
279
phpdbg_set_prompt(const char * prompt)280 PHPDBG_API void phpdbg_set_prompt(const char *prompt) /* {{{ */
281 {
282 /* free formatted prompt */
283 if (PHPDBG_G(prompt)[1]) {
284 free(PHPDBG_G(prompt)[1]);
285 PHPDBG_G(prompt)[1] = NULL;
286 }
287 /* free old prompt */
288 if (PHPDBG_G(prompt)[0]) {
289 free(PHPDBG_G(prompt)[0]);
290 PHPDBG_G(prompt)[0] = NULL;
291 }
292
293 /* copy new prompt */
294 PHPDBG_G(prompt)[0] = strdup(prompt);
295 } /* }}} */
296
phpdbg_get_prompt(void)297 PHPDBG_API const char *phpdbg_get_prompt(void) /* {{{ */
298 {
299 /* find cached prompt */
300 if (PHPDBG_G(prompt)[1]) {
301 return PHPDBG_G(prompt)[1];
302 }
303
304 /* create cached prompt */
305 #ifndef HAVE_LIBEDIT
306 /* TODO: libedit doesn't seems to support coloured prompt */
307 if ((PHPDBG_G(flags) & PHPDBG_IS_COLOURED)) {
308 ZEND_IGNORE_VALUE(asprintf(&PHPDBG_G(prompt)[1], "\033[%sm%s\033[0m ",
309 PHPDBG_G(colors)[PHPDBG_COLOR_PROMPT]->code,
310 PHPDBG_G(prompt)[0]));
311 } else
312 #endif
313 {
314 ZEND_IGNORE_VALUE(asprintf(&PHPDBG_G(prompt)[1], "%s ", PHPDBG_G(prompt)[0]));
315 }
316
317 return PHPDBG_G(prompt)[1];
318 } /* }}} */
319
phpdbg_rebuild_symtable(void)320 int phpdbg_rebuild_symtable(void) {
321 if (!EG(current_execute_data) || !EG(current_execute_data)->func) {
322 phpdbg_error("inactive", "type=\"op_array\"", "No active op array!");
323 return FAILURE;
324 }
325
326 if (!zend_rebuild_symbol_table()) {
327 phpdbg_error("inactive", "type=\"symbol_table\"", "No active symbol table!");
328 return FAILURE;
329 }
330
331 return SUCCESS;
332 }
333
phpdbg_get_terminal_width(void)334 PHPDBG_API int phpdbg_get_terminal_width(void) /* {{{ */
335 {
336 int columns;
337 #ifdef _WIN32
338 CONSOLE_SCREEN_BUFFER_INFO csbi;
339
340 GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi);
341 columns = csbi.srWindow.Right - csbi.srWindow.Left + 1;
342 #elif defined(HAVE_SYS_IOCTL_H) && defined(TIOCGWINSZ)
343 struct winsize w;
344
345 columns = ioctl(fileno(stdout), TIOCGWINSZ, &w) == 0 ? w.ws_col : 80;
346 #else
347 columns = 80;
348 #endif
349 return columns;
350 } /* }}} */
351
phpdbg_get_terminal_height(void)352 PHPDBG_API int phpdbg_get_terminal_height(void) /* {{{ */
353 {
354 int lines;
355 #ifdef _WIN32
356 CONSOLE_SCREEN_BUFFER_INFO csbi;
357
358 if (GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi)) {
359 lines = csbi.srWindow.Bottom - csbi.srWindow.Top + 1;
360 } else {
361 lines = 40;
362 }
363 #elif defined(HAVE_SYS_IOCTL_H) && defined(TIOCGWINSZ)
364 struct winsize w;
365
366 lines = ioctl(fileno(stdout), TIOCGWINSZ, &w) == 0 ? w.ws_row : 40;
367 #else
368 lines = 40;
369 #endif
370 return lines;
371 } /* }}} */
372
phpdbg_set_async_io(int fd)373 PHPDBG_API void phpdbg_set_async_io(int fd) {
374 #if !defined(_WIN32) && defined(FASYNC)
375 int flags;
376 fcntl(STDIN_FILENO, F_SETOWN, getpid());
377 flags = fcntl(STDIN_FILENO, F_GETFL);
378 fcntl(STDIN_FILENO, F_SETFL, flags | FASYNC);
379 #endif
380 }
381
phpdbg_safe_class_lookup(const char * name,int name_length,zend_class_entry ** ce)382 int phpdbg_safe_class_lookup(const char *name, int name_length, zend_class_entry **ce) {
383 if (PHPDBG_G(flags) & PHPDBG_IN_SIGNAL_HANDLER) {
384 char *lc_name, *lc_free;
385 int lc_length;
386
387 if (name == NULL || !name_length) {
388 return FAILURE;
389 }
390
391 lc_free = lc_name = emalloc(name_length + 1);
392 zend_str_tolower_copy(lc_name, name, name_length);
393 lc_length = name_length + 1;
394
395 if (lc_name[0] == '\\') {
396 lc_name += 1;
397 lc_length -= 1;
398 }
399
400 phpdbg_try_access {
401 *ce = zend_hash_str_find_ptr(EG(class_table), lc_name, lc_length);
402 } phpdbg_catch_access {
403 phpdbg_error("signalsegv", "class=\"%.*s\"", "Could not fetch class %.*s, invalid data source", name_length, name);
404 } phpdbg_end_try_access();
405
406 efree(lc_free);
407 } else {
408 zend_string *str_name = zend_string_init(name, name_length, 0);
409 *ce = zend_lookup_class(str_name);
410 efree(str_name);
411 }
412
413 return *ce ? SUCCESS : FAILURE;
414 }
415
phpdbg_get_property_key(char * key)416 char *phpdbg_get_property_key(char *key) {
417 if (*key != 0) {
418 return key;
419 }
420 return strchr(key + 1, 0) + 1;
421 }
422
phpdbg_parse_variable_arg_wrapper(char * name,size_t len,char * keyname,size_t keylen,HashTable * parent,zval * zv,phpdbg_parse_var_func callback)423 static int phpdbg_parse_variable_arg_wrapper(char *name, size_t len, char *keyname, size_t keylen, HashTable *parent, zval *zv, phpdbg_parse_var_func callback) {
424 return callback(name, len, keyname, keylen, parent, zv);
425 }
426
phpdbg_parse_variable(char * input,size_t len,HashTable * parent,size_t i,phpdbg_parse_var_func callback,zend_bool silent)427 PHPDBG_API int phpdbg_parse_variable(char *input, size_t len, HashTable *parent, size_t i, phpdbg_parse_var_func callback, zend_bool silent) {
428 return phpdbg_parse_variable_with_arg(input, len, parent, i, (phpdbg_parse_var_with_arg_func) phpdbg_parse_variable_arg_wrapper, NULL, silent, callback);
429 }
430
phpdbg_parse_variable_with_arg(char * input,size_t len,HashTable * parent,size_t i,phpdbg_parse_var_with_arg_func callback,phpdbg_parse_var_with_arg_func step_cb,zend_bool silent,void * arg)431 PHPDBG_API int phpdbg_parse_variable_with_arg(char *input, size_t len, HashTable *parent, size_t i, phpdbg_parse_var_with_arg_func callback, phpdbg_parse_var_with_arg_func step_cb, zend_bool silent, void *arg) {
432 int ret = FAILURE;
433 zend_bool new_index = 1;
434 char *last_index = NULL;
435 size_t index_len = 0;
436 zval *zv;
437
438 if (len < 2 || *input != '$') {
439 goto error;
440 }
441
442 while (i++ < len) {
443 if (i == len) {
444 new_index = 1;
445 } else {
446 switch (input[i]) {
447 case '[':
448 new_index = 1;
449 break;
450 case ']':
451 break;
452 case '>':
453 if (last_index[index_len - 1] == '-') {
454 new_index = 1;
455 index_len--;
456 }
457 break;
458
459 default:
460 if (new_index) {
461 last_index = input + i;
462 new_index = 0;
463 }
464 if (input[i - 1] == ']') {
465 goto error;
466 }
467 index_len++;
468 }
469 }
470
471 if (new_index && index_len == 0) {
472 zend_ulong numkey;
473 zend_string *strkey;
474 ZEND_HASH_FOREACH_KEY_VAL_IND(parent, numkey, strkey, zv) {
475 if (i == len || (i == len - 1 && input[len - 1] == ']')) {
476 char *key, *propkey;
477 size_t namelen, keylen;
478 char *name;
479 char *keyname = estrndup(last_index, index_len);
480 if (strkey) {
481 key = ZSTR_VAL(strkey);
482 keylen = ZSTR_LEN(strkey);
483 } else {
484 keylen = spprintf(&key, 0, ZEND_ULONG_FMT, numkey);
485 }
486 propkey = phpdbg_get_property_key(key);
487 name = emalloc(i + keylen + 2);
488 namelen = sprintf(name, "%.*s%.*s%s", (int) i, input, (int) (keylen - (propkey - key)), propkey, input[len - 1] == ']'?"]":"");
489 if (!strkey) {
490 efree(key);
491 }
492
493 ret = callback(name, namelen, keyname, index_len, parent, zv, arg) == SUCCESS || ret == SUCCESS?SUCCESS:FAILURE;
494 } else retry_ref: if (Z_TYPE_P(zv) == IS_OBJECT) {
495 if (step_cb) {
496 char *name = estrndup(input, i);
497 char *keyname = estrndup(last_index, index_len);
498
499 ret = step_cb(name, i, keyname, index_len, parent, zv, arg) == SUCCESS || ret == SUCCESS?SUCCESS:FAILURE;
500 }
501
502 phpdbg_parse_variable_with_arg(input, len, Z_OBJPROP_P(zv), i, callback, step_cb, silent, arg);
503 } else if (Z_TYPE_P(zv) == IS_ARRAY) {
504 if (step_cb) {
505 char *name = estrndup(input, i);
506 char *keyname = estrndup(last_index, index_len);
507
508 ret = step_cb(name, i, keyname, index_len, parent, zv, arg) == SUCCESS || ret == SUCCESS?SUCCESS:FAILURE;
509 }
510
511 phpdbg_parse_variable_with_arg(input, len, Z_ARRVAL_P(zv), i, callback, step_cb, silent, arg);
512 } else if (Z_ISREF_P(zv)) {
513 if (step_cb) {
514 char *name = estrndup(input, i);
515 char *keyname = estrndup(last_index, index_len);
516
517 ret = step_cb(name, i, keyname, index_len, parent, zv, arg) == SUCCESS || ret == SUCCESS?SUCCESS:FAILURE;
518 }
519
520 ZVAL_DEREF(zv);
521 goto retry_ref;
522 } else {
523 /* Ignore silently */
524 }
525 } ZEND_HASH_FOREACH_END();
526 return ret;
527 } else if (new_index) {
528 char last_chr = last_index[index_len];
529 last_index[index_len] = 0;
530 if (!(zv = zend_symtable_str_find(parent, last_index, index_len))) {
531 if (!silent) {
532 phpdbg_error("variable", "type=\"undefined\" variable=\"%.*s\"", "%.*s is undefined", (int) input[i] == ']' ? i + 1 : i, input);
533 }
534 return FAILURE;
535 }
536 while (Z_TYPE_P(zv) == IS_INDIRECT) {
537 zv = Z_INDIRECT_P(zv);
538 }
539
540 last_index[index_len] = last_chr;
541 if (i == len) {
542 char *name = estrndup(input, i);
543 char *keyname = estrndup(last_index, index_len);
544
545 ret = callback(name, i, keyname, index_len, parent, zv, arg) == SUCCESS || ret == SUCCESS?SUCCESS:FAILURE;
546 } else retry_ref_end: if (Z_TYPE_P(zv) == IS_OBJECT) {
547 if (step_cb) {
548 char *name = estrndup(input, i);
549 char *keyname = estrndup(last_index, index_len);
550
551 ret = step_cb(name, i, keyname, index_len, parent, zv, arg) == SUCCESS || ret == SUCCESS?SUCCESS:FAILURE;
552 }
553
554 parent = Z_OBJPROP_P(zv);
555 } else if (Z_TYPE_P(zv) == IS_ARRAY) {
556 if (step_cb) {
557 char *name = estrndup(input, i);
558 char *keyname = estrndup(last_index, index_len);
559
560 ret = step_cb(name, i, keyname, index_len, parent, zv, arg) == SUCCESS || ret == SUCCESS?SUCCESS:FAILURE;
561 }
562
563 parent = Z_ARRVAL_P(zv);
564 } else if (Z_ISREF_P(zv)) {
565 if (step_cb) {
566 char *name = estrndup(input, i);
567 char *keyname = estrndup(last_index, index_len);
568
569 ret = step_cb(name, i, keyname, index_len, parent, zv, arg) == SUCCESS || ret == SUCCESS?SUCCESS:FAILURE;
570 }
571
572 ZVAL_DEREF(zv);
573 goto retry_ref_end;
574 } else {
575 phpdbg_error("variable", "type=\"notiterable\" variable=\"%.*s\"", "%.*s is nor an array nor an object", (int) (input[i] == '>' ? i - 1 : i), input);
576 return FAILURE;
577 }
578 index_len = 0;
579 }
580 }
581
582 return ret;
583 error:
584 phpdbg_error("variable", "type=\"invalidinput\"", "Malformed input");
585 return FAILURE;
586 }
587
phpdbg_is_auto_global(char * name,int len)588 int phpdbg_is_auto_global(char *name, int len) {
589 return zend_is_auto_global_str(name, len);
590 }
591
phpdbg_xml_array_element_dump(zval * zv,zend_string * key,zend_ulong num)592 static int phpdbg_xml_array_element_dump(zval *zv, zend_string *key, zend_ulong num) {
593 phpdbg_xml("<element");
594
595 phpdbg_try_access {
596 if (key) { /* string key */
597 phpdbg_xml(" name=\"%.*s\"", (int) ZSTR_LEN(key), ZSTR_VAL(key));
598 } else { /* numeric key */
599 phpdbg_xml(" name=\"%ld\"", num);
600 }
601 } phpdbg_catch_access {
602 phpdbg_xml(" severity=\"error\" ></element>");
603 return 0;
604 } phpdbg_end_try_access();
605
606 phpdbg_xml(">");
607
608 phpdbg_xml_var_dump(zv);
609
610 phpdbg_xml("</element>");
611
612 return 0;
613 }
614
phpdbg_xml_object_property_dump(zval * zv,zend_string * key,zend_ulong num)615 static int phpdbg_xml_object_property_dump(zval *zv, zend_string *key, zend_ulong num) {
616 phpdbg_xml("<property");
617
618 phpdbg_try_access {
619 if (key) { /* string key */
620 const char *prop_name, *class_name;
621 int unmangle = zend_unmangle_property_name(key, &class_name, &prop_name);
622
623 if (class_name && unmangle == SUCCESS) {
624 phpdbg_xml(" name=\"%s\"", prop_name);
625 if (class_name[0] == '*') {
626 phpdbg_xml(" protection=\"protected\"");
627 } else {
628 phpdbg_xml(" class=\"%s\" protection=\"private\"", class_name);
629 }
630 } else {
631 phpdbg_xml(" name=\"%.*s\" protection=\"public\"", (int) ZSTR_LEN(key), ZSTR_VAL(key));
632 }
633 } else { /* numeric key */
634 phpdbg_xml(" name=\"%ld\" protection=\"public\"", num);
635 }
636 } phpdbg_catch_access {
637 phpdbg_xml(" severity=\"error\" ></property>");
638 return 0;
639 } phpdbg_end_try_access();
640
641 phpdbg_xml(">");
642
643 phpdbg_xml_var_dump(zv);
644
645 phpdbg_xml("</property>");
646
647 return 0;
648 }
649
650 #define COMMON (is_ref ? "&" : "")
651
phpdbg_xml_var_dump(zval * zv)652 PHPDBG_API void phpdbg_xml_var_dump(zval *zv) {
653 HashTable *myht;
654 zend_string *class_name, *key;
655 zend_ulong num;
656 zval *val;
657 int (*element_dump_func)(zval *zv, zend_string *key, zend_ulong num);
658 zend_bool is_ref = 0;
659
660 phpdbg_try_access {
661 is_ref = Z_ISREF_P(zv) && GC_REFCOUNT(Z_COUNTED_P(zv)) > 1;
662 ZVAL_DEREF(zv);
663
664 switch (Z_TYPE_P(zv)) {
665 case IS_TRUE:
666 phpdbg_xml("<bool refstatus=\"%s\" value=\"true\" />", COMMON);
667 break;
668 case IS_FALSE:
669 phpdbg_xml("<bool refstatus=\"%s\" value=\"false\" />", COMMON);
670 break;
671 case IS_NULL:
672 phpdbg_xml("<null refstatus=\"%s\" />", COMMON);
673 break;
674 case IS_LONG:
675 phpdbg_xml("<int refstatus=\"%s\" value=\"" ZEND_LONG_FMT "\" />", COMMON, Z_LVAL_P(zv));
676 break;
677 case IS_DOUBLE:
678 phpdbg_xml("<float refstatus=\"%s\" value=\"%.*G\" />", COMMON, (int) EG(precision), Z_DVAL_P(zv));
679 break;
680 case IS_STRING:
681 phpdbg_xml("<string refstatus=\"%s\" length=\"%zd\" value=\"%.*s\" />", COMMON, Z_STRLEN_P(zv), (int) Z_STRLEN_P(zv), Z_STRVAL_P(zv));
682 break;
683 case IS_ARRAY:
684 myht = Z_ARRVAL_P(zv);
685 if (!(GC_FLAGS(myht) & GC_IMMUTABLE)) {
686 if (GC_IS_RECURSIVE(myht)) {
687 phpdbg_xml("<recursion />");
688 break;
689 }
690 GC_PROTECT_RECURSION(myht);
691 }
692 phpdbg_xml("<array refstatus=\"%s\" num=\"%d\">", COMMON, zend_hash_num_elements(myht));
693 element_dump_func = phpdbg_xml_array_element_dump;
694 goto head_done;
695 case IS_OBJECT:
696 myht = zend_get_properties_for(zv, ZEND_PROP_PURPOSE_DEBUG);
697 if (myht && GC_IS_RECURSIVE(myht)) {
698 phpdbg_xml("<recursion />");
699 break;
700 }
701
702 class_name = Z_OBJ_HANDLER_P(zv, get_class_name)(Z_OBJ_P(zv));
703 phpdbg_xml("<object refstatus=\"%s\" class=\"%.*s\" id=\"%d\" num=\"%d\">", COMMON, (int) ZSTR_LEN(class_name), ZSTR_VAL(class_name), Z_OBJ_HANDLE_P(zv), myht ? zend_hash_num_elements(myht) : 0);
704 zend_string_release(class_name);
705
706 element_dump_func = phpdbg_xml_object_property_dump;
707 head_done:
708 if (myht) {
709 ZEND_HASH_FOREACH_KEY_VAL_IND(myht, num, key, val) {
710 element_dump_func(val, key, num);
711 } ZEND_HASH_FOREACH_END();
712 GC_UNPROTECT_RECURSION(myht);
713 if (Z_TYPE_P(zv) == IS_OBJECT) {
714 zend_release_properties(myht);
715 }
716 }
717 if (Z_TYPE_P(zv) == IS_ARRAY) {
718 phpdbg_xml("</array>");
719 } else {
720 phpdbg_xml("</object>");
721 }
722 break;
723 case IS_RESOURCE: {
724 const char *type_name = zend_rsrc_list_get_rsrc_type(Z_RES_P(zv));
725 phpdbg_xml("<resource refstatus=\"%s\" id=\"%pd\" type=\"%s\" />", COMMON, Z_RES_P(zv)->handle, type_name ? type_name : "unknown");
726 break;
727 }
728 default:
729 break;
730 }
731 } phpdbg_end_try_access();
732 }
733
phpdbg_check_caught_ex(zend_execute_data * execute_data,zend_object * exception)734 PHPDBG_API zend_bool phpdbg_check_caught_ex(zend_execute_data *execute_data, zend_object *exception) {
735 const zend_op *op;
736 zend_op *cur;
737 uint32_t op_num, i;
738 zend_op_array *op_array = &execute_data->func->op_array;
739
740 if (execute_data->opline >= EG(exception_op) && execute_data->opline < EG(exception_op) + 3) {
741 op = EG(opline_before_exception);
742 } else {
743 op = execute_data->opline;
744 }
745
746 op_num = op - op_array->opcodes;
747
748 for (i = 0; i < op_array->last_try_catch && op_array->try_catch_array[i].try_op <= op_num; i++) {
749 uint32_t catch = op_array->try_catch_array[i].catch_op, finally = op_array->try_catch_array[i].finally_op;
750 if (op_num <= catch || op_num <= finally) {
751 if (finally) {
752 return 1;
753 }
754
755 cur = &op_array->opcodes[catch];
756 while (1) {
757 zend_class_entry *ce;
758
759 if (!(ce = CACHED_PTR(cur->extended_value & ~ZEND_LAST_CATCH))) {
760 ce = zend_fetch_class_by_name(Z_STR_P(RT_CONSTANT(cur, cur->op1)), Z_STR_P(RT_CONSTANT(cur, cur->op1) + 1), ZEND_FETCH_CLASS_NO_AUTOLOAD);
761 CACHE_PTR(cur->extended_value & ~ZEND_LAST_CATCH, ce);
762 }
763
764 if (ce == exception->ce || (ce && instanceof_function(exception->ce, ce))) {
765 return 1;
766 }
767
768 if (cur->extended_value & ZEND_LAST_CATCH) {
769 return 0;
770 }
771
772 cur = OP_JMP_ADDR(cur, cur->op2);
773 }
774
775 return 0;
776 }
777 }
778
779 return op->opcode == ZEND_CATCH;
780 }
781
phpdbg_short_zval_print(zval * zv,int maxlen)782 char *phpdbg_short_zval_print(zval *zv, int maxlen) /* {{{ */
783 {
784 char *decode = NULL;
785
786 switch (Z_TYPE_P(zv)) {
787 case IS_UNDEF:
788 decode = estrdup("");
789 break;
790 case IS_NULL:
791 decode = estrdup("null");
792 break;
793 case IS_FALSE:
794 decode = estrdup("false");
795 break;
796 case IS_TRUE:
797 decode = estrdup("true");
798 break;
799 case IS_LONG:
800 spprintf(&decode, 0, ZEND_LONG_FMT, Z_LVAL_P(zv));
801 break;
802 case IS_DOUBLE:
803 spprintf(&decode, 0, "%.*G", 14, Z_DVAL_P(zv));
804
805 /* Make sure it looks like a float */
806 if (zend_finite(Z_DVAL_P(zv)) && !strchr(decode, '.')) {
807 size_t len = strlen(decode);
808 char *decode2 = emalloc(len + strlen(".0") + 1);
809 memcpy(decode2, decode, len);
810 decode2[len] = '.';
811 decode2[len+1] = '0';
812 decode2[len+2] = '\0';
813 efree(decode);
814 decode = decode2;
815 }
816 break;
817 case IS_STRING: {
818 int i;
819 zend_string *str = php_addcslashes(Z_STR_P(zv), "\\\"\n\t\0", 5);
820 for (i = 0; i < ZSTR_LEN(str); i++) {
821 if (ZSTR_VAL(str)[i] < 32) {
822 ZSTR_VAL(str)[i] = ' ';
823 }
824 }
825 spprintf(&decode, 0, "\"%.*s\"%c",
826 ZSTR_LEN(str) <= maxlen - 2 ? (int) ZSTR_LEN(str) : (maxlen - 3),
827 ZSTR_VAL(str), ZSTR_LEN(str) <= maxlen - 2 ? 0 : '+');
828 zend_string_release(str);
829 } break;
830 case IS_RESOURCE:
831 spprintf(&decode, 0, "Rsrc #%d", Z_RES_HANDLE_P(zv));
832 break;
833 case IS_ARRAY:
834 spprintf(&decode, 0, "array(%d)", zend_hash_num_elements(Z_ARR_P(zv)));
835 break;
836 case IS_OBJECT: {
837 zend_string *str = Z_OBJCE_P(zv)->name;
838 spprintf(&decode, 0, "%.*s%c",
839 ZSTR_LEN(str) <= maxlen ? (int) ZSTR_LEN(str) : maxlen - 1,
840 ZSTR_VAL(str), ZSTR_LEN(str) <= maxlen ? 0 : '+');
841 break;
842 }
843 case IS_CONSTANT_AST: {
844 zend_ast *ast = Z_ASTVAL_P(zv);
845
846 if (ast->kind == ZEND_AST_CONSTANT
847 || ast->kind == ZEND_AST_CONSTANT_CLASS) {
848 decode = estrdup("<constant>");
849 } else {
850 decode = estrdup("<ast>");
851 }
852 break;
853 }
854 default:
855 spprintf(&decode, 0, "unknown type: %d", Z_TYPE_P(zv));
856 break;
857 }
858
859 return decode;
860 } /* }}} */
861
