1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
|
/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 2006-2016 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Georg Richter <georg@mysql.com> |
| Andrey Hristov <andrey@mysql.com> |
| Ulf Wendel <uwendel@mysql.com> |
+----------------------------------------------------------------------+
*/
/* $Id: mysqlnd_debug.c 309303 2011-03-16 12:42:59Z andrey $ */
#include "php.h"
#include "Zend/zend_builtin_functions.h"
/* Follows code borrowed from zend_builtin_functions.c because the functions there are static */
/* {{{ gettraceasstring() macros */
#define TRACE_APPEND_CHR(chr) \
*str = (char*)erealloc(*str, *len + 1 + 1); \
(*str)[(*len)++] = chr
#define TRACE_APPEND_STRL(val, vallen) \
{ \
int l = vallen; \
*str = (char*)erealloc(*str, *len + l + 1); \
memcpy((*str) + *len, val, l); \
*len += l; \
}
#define TRACE_APPEND_STR(val) \
TRACE_APPEND_STRL(val, sizeof(val)-1)
#define TRACE_APPEND_KEY(key) \
if (zend_hash_find(ht, key, sizeof(key), (void**)&tmp) == SUCCESS) { \
TRACE_APPEND_STRL(Z_STRVAL_PP(tmp), Z_STRLEN_PP(tmp)); \
}
/* }}} */
static int
mysqlnd_build_trace_args(zval **arg TSRMLS_DC, int num_args, va_list args, zend_hash_key *hash_key) /* {{{ */
{
char **str;
int *len;
str = va_arg(args, char**);
len = va_arg(args, int*);
/* the trivial way would be to do:
* conver_to_string_ex(arg);
* append it and kill the now tmp arg.
* but that could cause some E_NOTICE and also damn long lines.
*/
switch (Z_TYPE_PP(arg)) {
case IS_NULL:
TRACE_APPEND_STR("NULL, ");
break;
case IS_STRING: {
int l_added;
TRACE_APPEND_CHR('\'');
if (Z_STRLEN_PP(arg) > 15) {
TRACE_APPEND_STRL(Z_STRVAL_PP(arg), 15);
TRACE_APPEND_STR("...', ");
l_added = 15 + 6 + 1; /* +1 because of while (--l_added) */
} else {
l_added = Z_STRLEN_PP(arg);
TRACE_APPEND_STRL(Z_STRVAL_PP(arg), l_added);
TRACE_APPEND_STR("', ");
l_added += 3 + 1;
}
while (--l_added) {
if ((*str)[*len - l_added] < 32) {
(*str)[*len - l_added] = '?';
}
}
break;
}
case IS_BOOL:
if (Z_LVAL_PP(arg)) {
TRACE_APPEND_STR("true, ");
} else {
TRACE_APPEND_STR("false, ");
}
break;
case IS_RESOURCE:
TRACE_APPEND_STR("Resource id #");
/* break; */
case IS_LONG: {
long lval = Z_LVAL_PP(arg);
char s_tmp[MAX_LENGTH_OF_LONG + 1];
int l_tmp = zend_sprintf(s_tmp, "%ld", lval); /* SAFE */
TRACE_APPEND_STRL(s_tmp, l_tmp);
TRACE_APPEND_STR(", ");
break;
}
case IS_DOUBLE: {
double dval = Z_DVAL_PP(arg);
char *s_tmp;
int l_tmp;
s_tmp = emalloc(MAX_LENGTH_OF_DOUBLE + EG(precision) + 1);
l_tmp = zend_sprintf(s_tmp, "%.*G", (int) EG(precision), dval); /* SAFE */
TRACE_APPEND_STRL(s_tmp, l_tmp);
/* %G already handles removing trailing zeros from the fractional part, yay */
efree(s_tmp);
TRACE_APPEND_STR(", ");
break;
}
case IS_ARRAY:
TRACE_APPEND_STR("Array, ");
break;
case IS_OBJECT: {
char *class_name;
zend_uint class_name_len;
int dupl;
TRACE_APPEND_STR("Object(");
dupl = zend_get_object_classname(*arg, (const char **)&class_name, &class_name_len TSRMLS_CC);
TRACE_APPEND_STRL(class_name, class_name_len);
if (!dupl) {
efree(class_name);
}
TRACE_APPEND_STR("), ");
break;
}
default:
break;
}
return ZEND_HASH_APPLY_KEEP;
}
/* }}} */
static int
mysqlnd_build_trace_string(zval **frame TSRMLS_DC, int num_args, va_list args, zend_hash_key *hash_key) /* {{{ */
{
char *s_tmp, **str;
int *len, *num;
long line;
HashTable *ht = Z_ARRVAL_PP(frame);
zval **file, **tmp;
uint * level;
level = va_arg(args, uint *);
str = va_arg(args, char**);
len = va_arg(args, int*);
num = va_arg(args, int*);
if (!*level) {
return ZEND_HASH_APPLY_KEEP;
}
--*level;
s_tmp = emalloc(1 + MAX_LENGTH_OF_LONG + 1 + 1);
sprintf(s_tmp, "#%d ", (*num)++);
TRACE_APPEND_STRL(s_tmp, strlen(s_tmp));
efree(s_tmp);
if (zend_hash_find(ht, "file", sizeof("file"), (void**)&file) == SUCCESS) {
if (zend_hash_find(ht, "line", sizeof("line"), (void**)&tmp) == SUCCESS) {
line = Z_LVAL_PP(tmp);
} else {
line = 0;
}
s_tmp = emalloc(Z_STRLEN_PP(file) + MAX_LENGTH_OF_LONG + 4 + 1);
sprintf(s_tmp, "%s(%ld): ", Z_STRVAL_PP(file), line);
TRACE_APPEND_STRL(s_tmp, strlen(s_tmp));
efree(s_tmp);
} else {
TRACE_APPEND_STR("[internal function]: ");
}
TRACE_APPEND_KEY("class");
TRACE_APPEND_KEY("type");
TRACE_APPEND_KEY("function");
TRACE_APPEND_CHR('(');
if (zend_hash_find(ht, "args", sizeof("args"), (void**)&tmp) == SUCCESS) {
int last_len = *len;
zend_hash_apply_with_arguments(Z_ARRVAL_PP(tmp) TSRMLS_CC, (apply_func_args_t)mysqlnd_build_trace_args, 2, str, len);
if (last_len != *len) {
*len -= 2; /* remove last ', ' */
}
}
TRACE_APPEND_STR(")\n");
return ZEND_HASH_APPLY_KEEP;
}
/* }}} */
PHPAPI char *
mysqlnd_get_backtrace(uint max_levels, size_t * length TSRMLS_DC)
{
zval *trace;
char *res = estrdup(""), **str = &res, *s_tmp;
int res_len = 0, *len = &res_len, num = 0;
if (max_levels == 0) {
max_levels = 99999;
}
MAKE_STD_ZVAL(trace);
zend_fetch_debug_backtrace(trace, 0, 0, 0 TSRMLS_CC);
zend_hash_apply_with_arguments(Z_ARRVAL_P(trace) TSRMLS_CC, (apply_func_args_t)mysqlnd_build_trace_string, 4, &max_levels, str, len, &num);
zval_ptr_dtor(&trace);
if (max_levels) {
s_tmp = emalloc(1 + MAX_LENGTH_OF_LONG + 7 + 1);
sprintf(s_tmp, "#%d {main}", num);
TRACE_APPEND_STRL(s_tmp, strlen(s_tmp));
efree(s_tmp);
}
res[res_len] = '\0';
*length = res_len;
return res;
}
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: noet sw=4 ts=4 fdm=marker
* vim<600: noet sw=4 ts=4
*/
|
