summaryrefslogtreecommitdiff
path: root/ext/mysqli/mysqli_warning.c
blob: 7b1552e5ace47c60079110966f42dfc92f40c8a3 (plain)
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
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
/*
  +----------------------------------------------------------------------+
  | Copyright (c) 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.               |
  +----------------------------------------------------------------------+
  | Author: Georg Richter <georg@php.net>                                |
  +----------------------------------------------------------------------+

*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <signal.h>

#include "php.h"
#include "php_ini.h"
#include "ext/standard/info.h"
#include "php_mysqli_structs.h"
#include "mysqli_priv.h"

/* Define these in the PHP7 tree to make merging easy process */
#define ZSTR_DUPLICATE (1<<0)
#define ZSTR_AUTOFREE  (1<<1)

#define ZVAL_UTF8_STRING(z, s, flags)          ZVAL_STRING((z), (char*)(s))
#define ZVAL_UTF8_STRINGL(z, s, l, flags)      ZVAL_STRINGL((z), (char*)(s), (l))

/* {{{ void php_clear_warnings() */
void php_clear_warnings(MYSQLI_WARNING *w)
{
	MYSQLI_WARNING *n;

	while (w) {
		n = w;
		zval_ptr_dtor_str(&(w->reason));
		zval_ptr_dtor_str(&(w->sqlstate));
		w = w->next;
		efree(n);
	}
}
/* }}} */

#ifndef MYSQLI_USE_MYSQLND
/* {{{ MYSQLI_WARNING *php_new_warning */
static
MYSQLI_WARNING *php_new_warning(const char *reason, int errorno)
{
	MYSQLI_WARNING *w;

	w = (MYSQLI_WARNING *)ecalloc(1, sizeof(MYSQLI_WARNING));

	ZVAL_UTF8_STRING(&(w->reason), reason, ZSTR_DUPLICATE);

	ZVAL_UTF8_STRINGL(&(w->sqlstate), "HY000", sizeof("HY000") - 1,  ZSTR_DUPLICATE);

	w->errorno = errorno;

	return w;
}
/* }}} */

/* {{{ MYSQLI_WARNING *php_get_warnings(MYSQL *mysql) */
MYSQLI_WARNING *php_get_warnings(MYSQL *mysql)
{
	MYSQLI_WARNING *w, *first = NULL, *prev = NULL;
	MYSQL_RES		*result;
	MYSQL_ROW 		row;

	if (mysql_real_query(mysql, "SHOW WARNINGS", 13)) {
		return NULL;
	}

	result = mysql_store_result(mysql);

	while ((row = mysql_fetch_row(result))) {
		w = php_new_warning(row[2], atoi(row[1]));
		if (!first) {
			first = w;
		}
		if (prev) {
			prev->next = w;
		}
		prev = w;
	}
	mysql_free_result(result);
	return first;
}
/* }}} */
#else
/* {{{ MYSQLI_WARNING *php_new_warning */
static
MYSQLI_WARNING *php_new_warning(zval * reason, int errorno)
{
	MYSQLI_WARNING *w;

	w = (MYSQLI_WARNING *)ecalloc(1, sizeof(MYSQLI_WARNING));

	ZVAL_COPY(&w->reason, reason);
	convert_to_string(&w->reason);

	ZVAL_UTF8_STRINGL(&(w->sqlstate), "HY000", sizeof("HY000") - 1,  ZSTR_DUPLICATE);

	w->errorno = errorno;

	return w;
}
/* }}} */

/* {{{ MYSQLI_WARNING *php_get_warnings(MYSQL *mysql) */
MYSQLI_WARNING * php_get_warnings(MYSQLND_CONN_DATA * mysql)
{
	MYSQLI_WARNING	*w, *first = NULL, *prev = NULL;
	MYSQL_RES		*result;
	zval			row;

	if (mysql->m->query(mysql, "SHOW WARNINGS", 13)) {
		return NULL;
	}

	result = mysql->m->use_result(mysql, 0);

	for (;;) {
		zval *entry;
		int errno;

		mysqlnd_fetch_into(result, MYSQLND_FETCH_NUM, &row, MYSQLND_MYSQLI);
		if (Z_TYPE(row) != IS_ARRAY) {
			zval_ptr_dtor(&row);
			break;
		}
		zend_hash_internal_pointer_reset(Z_ARRVAL(row));
		/* 0. we don't care about the first */
		zend_hash_move_forward(Z_ARRVAL(row));

		/* 1. Here comes the error no */
		entry = zend_hash_get_current_data(Z_ARRVAL(row));
		errno = zval_get_long(entry);
		zend_hash_move_forward(Z_ARRVAL(row));

		/* 2. Here comes the reason */
		entry = zend_hash_get_current_data(Z_ARRVAL(row));

		w = php_new_warning(entry, errno);
		/*
		  Don't destroy entry, because the row destroy will decrease
		  the refcounter. Decreased twice then mysqlnd_free_result()
		  will crash, because it will try to access already freed memory.
		*/
		if (!first) {
			first = w;
		}
		if (prev) {
			prev->next = (void *)w;
		}
		prev = w;

		zval_ptr_dtor(&row);
	}

	mysql_free_result(result);
	return first;
}
/* }}} */
#endif

/* {{{ bool mysqli_warning::next() */
PHP_METHOD(mysqli_warning, next)
{
	MYSQLI_WARNING 	*w;
	mysqli_object *obj = Z_MYSQLI_P(ZEND_THIS);

	if (zend_parse_parameters_none() == FAILURE) {
		RETURN_THROWS();
	}

	if (obj->ptr) {
		MYSQLI_FETCH_RESOURCE(w, MYSQLI_WARNING *, ZEND_THIS, "mysqli_warning", MYSQLI_STATUS_VALID);

		if (w && w->next) {
			w = w->next;
	        ((MYSQLI_RESOURCE *)(obj->ptr))->ptr = w;
			RETURN_TRUE;
		}
	}
	RETURN_FALSE;
}
/* }}} */

/* {{{ property mysqli_warning_message */
static int mysqli_warning_message(mysqli_object *obj, zval *retval, zend_bool quiet)
{
	MYSQLI_WARNING *w;

	if (!obj->ptr || !((MYSQLI_RESOURCE *)(obj->ptr))->ptr) {
		if (!quiet) {
			zend_throw_error(NULL, "%s object is already closed", ZSTR_VAL(obj->zo.ce->name));
		}

		return FAILURE;
	}

	w = (MYSQLI_WARNING *)((MYSQLI_RESOURCE *)(obj->ptr))->ptr;
	ZVAL_COPY(retval, &w->reason);

	return SUCCESS;
}
/* }}} */

/* {{{ property mysqli_warning_sqlstate */
static int mysqli_warning_sqlstate(mysqli_object *obj, zval *retval, zend_bool quiet)
{
	MYSQLI_WARNING *w;

	if (!obj->ptr || !((MYSQLI_RESOURCE *)(obj->ptr))->ptr) {
		if (!quiet) {
			zend_throw_error(NULL, "%s object is already closed", ZSTR_VAL(obj->zo.ce->name));
		}

		return FAILURE;
	}

	w = (MYSQLI_WARNING *)((MYSQLI_RESOURCE *)(obj->ptr))->ptr;
	ZVAL_COPY(retval, &w->sqlstate);

	return SUCCESS;
}
/* }}} */

/* {{{ property mysqli_warning_error */
static int mysqli_warning_errno(mysqli_object *obj, zval *retval, zend_bool quiet)
{
	MYSQLI_WARNING *w;

	if (!obj->ptr || !((MYSQLI_RESOURCE *)(obj->ptr))->ptr) {
		if (!quiet) {
			zend_throw_error(NULL, "%s object is already closed", ZSTR_VAL(obj->zo.ce->name));
		}

		return FAILURE;
	}

	w = (MYSQLI_WARNING *)((MYSQLI_RESOURCE *)(obj->ptr))->ptr;
	ZVAL_LONG(retval, w->errorno);

	return SUCCESS;
}
/* }}} */

PHP_METHOD(mysqli_warning, __construct)
{
	ZEND_PARSE_PARAMETERS_NONE();

	zend_throw_error(NULL, "Cannot directly construct mysqli_warning");
}

/* {{{ mysqli_warning_property_entries */
const mysqli_property_entry mysqli_warning_property_entries[] = {
	{"message", sizeof("message") - 1, mysqli_warning_message, NULL},
	{"sqlstate", sizeof("sqlstate") - 1, mysqli_warning_sqlstate, NULL},
	{"errno", sizeof("errno") - 1, mysqli_warning_errno, NULL},
	{NULL, 0, NULL, NULL}
};
/* }}} */