root/ext/mysqli/mysqli_warning.c

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DEFINITIONS

This source file includes following definitions.
  1. php_clear_warnings
  2. php_new_warning
  3. php_get_warnings
  4. php_new_warning
  5. php_get_warnings
  6. PHP_METHOD
  7. mysqli_warning_message
  8. mysqli_warning_sqlstate
  9. mysqli_warning_errno
  10. PHP_METHOD

   1 /*
   2   +----------------------------------------------------------------------+
   3   | PHP Version 7                                                        |
   4   +----------------------------------------------------------------------+
   5   | Copyright (c) 1997-2016 The PHP Group                                |
   6   +----------------------------------------------------------------------+
   7   | This source file is subject to version 3.01 of the PHP 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.php.net/license/3_01.txt                                  |
  11   | If you did not receive a copy of the PHP license and are unable to   |
  12   | obtain it through the world-wide-web, please send a note to          |
  13   | license@php.net so we can mail you a copy immediately.               |
  14   +----------------------------------------------------------------------+
  15   | Author: Georg Richter <georg@php.net>                                |
  16   +----------------------------------------------------------------------+
  17 
  18 */
  19 #ifdef HAVE_CONFIG_H
  20 #include "config.h"
  21 #endif
  22 
  23 #include <signal.h>
  24 
  25 #include "php.h"
  26 #include "php_ini.h"
  27 #include "ext/standard/info.h"
  28 #include "php_mysqli_structs.h"
  29 #include "mysqli_priv.h"
  30 
  31 /* Define these in the PHP7 tree to make merging easy process */
  32 #define ZSTR_DUPLICATE (1<<0)
  33 #define ZSTR_AUTOFREE  (1<<1)
  34 
  35 #define ZVAL_UTF8_STRING(z, s, flags)          ZVAL_STRING((z), (char*)(s))
  36 #define ZVAL_UTF8_STRINGL(z, s, l, flags)      ZVAL_STRINGL((z), (char*)(s), (l))
  37 
  38 /* {{{ void php_clear_warnings() */
  39 void php_clear_warnings(MYSQLI_WARNING *w)
  40 {
  41         MYSQLI_WARNING *n;
  42 
  43         while (w) {
  44                 n = w;
  45                 zval_dtor(&(w->reason));
  46                 zval_dtor(&(w->sqlstate));
  47                 w = w->next;
  48                 efree(n);
  49         }
  50 }
  51 /* }}} */
  52 
  53 #ifndef MYSQLI_USE_MYSQLND
  54 /* {{{ MYSQLI_WARNING *php_new_warning */
  55 static
  56 MYSQLI_WARNING *php_new_warning(const char *reason, int errorno)
  57 {
  58         MYSQLI_WARNING *w;
  59 
  60         w = (MYSQLI_WARNING *)ecalloc(1, sizeof(MYSQLI_WARNING));
  61 
  62         ZVAL_UTF8_STRING(&(w->reason), reason, ZSTR_DUPLICATE);
  63 
  64         ZVAL_UTF8_STRINGL(&(w->sqlstate), "HY000", sizeof("HY000") - 1,  ZSTR_DUPLICATE);
  65 
  66         w->errorno = errorno;
  67 
  68         return w;
  69 }
  70 /* }}} */
  71 
  72 /* {{{ MYSQLI_WARNING *php_get_warnings(MYSQL *mysql) */
  73 MYSQLI_WARNING *php_get_warnings(MYSQL *mysql)
  74 {
  75         MYSQLI_WARNING *w, *first = NULL, *prev = NULL;
  76         MYSQL_RES               *result;
  77         MYSQL_ROW               row;
  78 
  79         if (mysql_real_query(mysql, "SHOW WARNINGS", 13)) {
  80                 return NULL;
  81         }
  82 
  83         result = mysql_store_result(mysql);
  84 
  85         while ((row = mysql_fetch_row(result))) {
  86                 w = php_new_warning(row[2], atoi(row[1]));
  87                 if (!first) {
  88                         first = w;
  89                 }
  90                 if (prev) {
  91                         prev->next = w;
  92                 }
  93                 prev = w;
  94         }
  95         mysql_free_result(result);
  96         return first;
  97 }
  98 /* }}} */
  99 #else
 100 /* {{{ MYSQLI_WARNING *php_new_warning */
 101 static
 102 MYSQLI_WARNING *php_new_warning(zval * reason, int errorno)
 103 {
 104         MYSQLI_WARNING *w;
 105 
 106         w = (MYSQLI_WARNING *)ecalloc(1, sizeof(MYSQLI_WARNING));
 107 
 108         ZVAL_COPY(&w->reason, reason);
 109         convert_to_string(&w->reason);
 110 
 111         ZVAL_UTF8_STRINGL(&(w->sqlstate), "HY000", sizeof("HY000") - 1,  ZSTR_DUPLICATE);
 112 
 113         w->errorno = errorno;
 114 
 115         return w;
 116 }
 117 /* }}} */
 118 
 119 /* {{{ MYSQLI_WARNING *php_get_warnings(MYSQL *mysql) */
 120 MYSQLI_WARNING * php_get_warnings(MYSQLND_CONN_DATA * mysql)
 121 {
 122         MYSQLI_WARNING  *w, *first = NULL, *prev = NULL;
 123         MYSQL_RES               *result;
 124         zval                    row;
 125 
 126         if (mysql->m->query(mysql, "SHOW WARNINGS", 13)) {
 127                 return NULL;
 128         }
 129 
 130         result = mysql->m->use_result(mysql, 0);
 131 
 132         for (;;) {
 133                 zval *entry;
 134                 int errno;
 135 
 136                 mysqlnd_fetch_into(result, MYSQLND_FETCH_NUM, &row, MYSQLND_MYSQLI);
 137                 if (Z_TYPE(row) != IS_ARRAY) {
 138                         zval_ptr_dtor(&row);
 139                         break;
 140                 }
 141                 zend_hash_internal_pointer_reset(Z_ARRVAL(row));
 142                 /* 0. we don't care about the first */
 143                 zend_hash_move_forward(Z_ARRVAL(row));
 144 
 145                 /* 1. Here comes the error no */
 146                 entry = zend_hash_get_current_data(Z_ARRVAL(row));
 147                 convert_to_long_ex(entry);
 148                 errno = Z_LVAL_P(entry);
 149                 zend_hash_move_forward(Z_ARRVAL(row));
 150 
 151                 /* 2. Here comes the reason */
 152                 entry = zend_hash_get_current_data(Z_ARRVAL(row));
 153 
 154                 w = php_new_warning(entry, errno);
 155                 /*
 156                   Don't destroy entry, because the row destroy will decrease
 157                   the refcounter. Decreased twice then mysqlnd_free_result()
 158                   will crash, because it will try to access already freed memory.
 159                 */
 160                 if (!first) {
 161                         first = w;
 162                 }
 163                 if (prev) {
 164                         prev->next = (void *)w;
 165                 }
 166                 prev = w;
 167 
 168                 zval_ptr_dtor(&row);
 169         }
 170 
 171         mysql_free_result(result);
 172         return first;
 173 }
 174 /* }}} */
 175 #endif
 176 
 177 /* {{{ bool mysqli_warning::next() */
 178 PHP_METHOD(mysqli_warning, next)
 179 {
 180         MYSQLI_WARNING  *w;
 181         zval                    *mysqli_warning;
 182         mysqli_object *obj = Z_MYSQLI_P(getThis());
 183 
 184         if (obj->ptr) {
 185                 if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O",
 186                                                                                  &mysqli_warning, mysqli_warning_class_entry) == FAILURE) {
 187                         return;
 188                 }
 189 
 190                 MYSQLI_FETCH_RESOURCE(w, MYSQLI_WARNING *, mysqli_warning, "mysqli_warning", MYSQLI_STATUS_VALID);
 191 
 192                 if (w && w->next) {
 193                         w = w->next;
 194                 ((MYSQLI_RESOURCE *)(obj->ptr))->ptr = w;
 195                         RETURN_TRUE;
 196                 }
 197         }
 198         RETURN_FALSE;
 199 }
 200 /* }}} */
 201 
 202 /* {{{ property mysqli_warning_message */
 203 static
 204 zval *mysqli_warning_message(mysqli_object *obj, zval *retval)
 205 {
 206         MYSQLI_WARNING *w;
 207 
 208         if (!obj->ptr || !((MYSQLI_RESOURCE *)(obj->ptr))->ptr) {
 209                 return NULL;
 210         }
 211 
 212         w = (MYSQLI_WARNING *)((MYSQLI_RESOURCE *)(obj->ptr))->ptr;
 213         ZVAL_COPY(retval, &w->reason);
 214         return retval;
 215 }
 216 /* }}} */
 217 
 218 /* {{{ property mysqli_warning_sqlstate */
 219 static
 220 zval *mysqli_warning_sqlstate(mysqli_object *obj, zval *retval)
 221 {
 222         MYSQLI_WARNING *w;
 223 
 224         if (!obj->ptr || !((MYSQLI_RESOURCE *)(obj->ptr))->ptr) {
 225                 return NULL;
 226         }
 227 
 228         w = (MYSQLI_WARNING *)((MYSQLI_RESOURCE *)(obj->ptr))->ptr;
 229         ZVAL_COPY(retval, &w->sqlstate);
 230         return retval;
 231 }
 232 /* }}} */
 233 
 234 /* {{{ property mysqli_warning_error */
 235 static
 236 zval *mysqli_warning_errno(mysqli_object *obj, zval *retval)
 237 {
 238         MYSQLI_WARNING *w;
 239 
 240         if (!obj->ptr || !((MYSQLI_RESOURCE *)(obj->ptr))->ptr) {
 241                 return NULL;
 242         }
 243         w = (MYSQLI_WARNING *)((MYSQLI_RESOURCE *)(obj->ptr))->ptr;
 244         ZVAL_LONG(retval, w->errorno);
 245         return retval;
 246 }
 247 /* }}} */
 248 
 249 /* {{{ mysqli_warning_construct(object obj) */
 250 PHP_METHOD(mysqli_warning, __construct)
 251 {
 252         zval                    *z;
 253         mysqli_object   *obj;
 254 #ifndef MYSQLI_USE_MYSQLND
 255         MYSQL                   *hdl;
 256 #endif
 257         MYSQLI_WARNING  *w;
 258         MYSQLI_RESOURCE *mysqli_resource;
 259 
 260         if (ZEND_NUM_ARGS() != 1) {
 261                 WRONG_PARAM_COUNT;
 262         }
 263         if (zend_parse_parameters(1, "o", &z)==FAILURE) {
 264                 return;
 265         }
 266         obj = Z_MYSQLI_P(z);
 267 
 268         if (obj->zo.ce == mysqli_link_class_entry) {
 269                 MY_MYSQL *mysql;
 270                 MYSQLI_FETCH_RESOURCE_CONN(mysql, z, MYSQLI_STATUS_VALID);
 271                 if (mysql_warning_count(mysql->mysql)) {
 272 #ifndef MYSQLI_USE_MYSQLND
 273                         w = php_get_warnings(mysql->mysql);
 274 #else
 275                         w = php_get_warnings(mysql->mysql->data);
 276 #endif
 277                 } else {
 278                         php_error_docref(NULL, E_WARNING, "No warnings found");
 279                         RETURN_FALSE;
 280                 }
 281         } else if (obj->zo.ce == mysqli_stmt_class_entry) {
 282                 MY_STMT *stmt;
 283                 MYSQLI_FETCH_RESOURCE_STMT(stmt, z, MYSQLI_STATUS_VALID);
 284 #ifndef MYSQLI_USE_MYSQLND
 285                 hdl = mysqli_stmt_get_connection(stmt->stmt);
 286                 if (mysql_warning_count(hdl)) {
 287                         w = php_get_warnings(hdl);
 288 #else
 289                 if (mysqlnd_stmt_warning_count(stmt->stmt)) {
 290                         w = php_get_warnings(mysqli_stmt_get_connection(stmt->stmt));
 291 #endif
 292                 } else {
 293                         php_error_docref(NULL, E_WARNING, "No warnings found");
 294                         RETURN_FALSE;
 295                 }
 296         } else {
 297                 php_error_docref(NULL, E_WARNING, "invalid class argument");
 298                 RETURN_FALSE;
 299         }
 300 
 301         mysqli_resource = (MYSQLI_RESOURCE *)ecalloc (1, sizeof(MYSQLI_RESOURCE));
 302         mysqli_resource->ptr = mysqli_resource->info = (void *)w;
 303         mysqli_resource->status = MYSQLI_STATUS_VALID;
 304 
 305         if (!getThis() || !instanceof_function(Z_OBJCE_P(getThis()), mysqli_warning_class_entry)) {
 306                 MYSQLI_RETURN_RESOURCE(mysqli_resource, mysqli_warning_class_entry);
 307         } else {
 308                 (Z_MYSQLI_P(getThis()))->ptr = mysqli_resource;
 309         }
 310 
 311 }
 312 /* }}} */
 313 
 314 /* {{{ mysqli_warning_methods */
 315 const zend_function_entry mysqli_warning_methods[] = {
 316         PHP_ME(mysqli_warning, __construct,             NULL, ZEND_ACC_PROTECTED)
 317         PHP_ME(mysqli_warning, next,                    NULL, ZEND_ACC_PUBLIC)
 318         {NULL, NULL, NULL}
 319 };
 320 /* }}} */
 321 
 322 /* {{{ mysqli_warning_property_entries */
 323 const mysqli_property_entry mysqli_warning_property_entries[] = {
 324         {"message", sizeof("message") - 1, mysqli_warning_message, NULL},
 325         {"sqlstate", sizeof("sqlstate") - 1, mysqli_warning_sqlstate, NULL},
 326         {"errno", sizeof("errno") - 1, mysqli_warning_errno, NULL},
 327         {NULL, 0, NULL, NULL}
 328 };
 329 /* }}} */
 330 
 331 /*
 332  * Local variables:
 333  * tab-width: 4
 334  * c-basic-offset: 4
 335  * indent-tabs-mode: t
 336  * End:
 337  * vim600: noet sw=4 ts=4 fdm=marker
 338  * vim<600: noet sw=4 ts=4
 339  */

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