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Handle mysqli errors in more cases
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Report errors autocommit, commit, rollback and mysqli_stmt_attr_set.

Additionally, copy the error from conn to stmt when preparing fails,
so these errors are also handled by mysqli_stmt_prepare.

Closes GH-6157.
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kamil-tekiela authored and nikic committed Oct 28, 2020
1 parent fe55fe1 commit 990bb34
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Showing 3 changed files with 46 additions and 0 deletions.
4 changes: 4 additions & 0 deletions ext/mysqli/mysqli_api.c
Original file line number Diff line number Diff line change
Expand Up @@ -171,6 +171,7 @@ PHP_FUNCTION(mysqli_autocommit)
MYSQLI_FETCH_RESOURCE_CONN(mysql, mysql_link, MYSQLI_STATUS_VALID);

if (mysql_autocommit(mysql->mysql, (my_bool)automode)) {
MYSQLI_REPORT_MYSQL_ERROR(mysql->mysql);
RETURN_FALSE;
}
RETURN_TRUE;
Expand Down Expand Up @@ -754,6 +755,7 @@ PHP_FUNCTION(mysqli_commit)
#else
if (FAIL == mysqlnd_commit(mysql->mysql, flags, name)) {
#endif
MYSQLI_REPORT_MYSQL_ERROR(mysql->mysql);
RETURN_FALSE;
}
RETURN_TRUE;
Expand Down Expand Up @@ -1989,6 +1991,7 @@ PHP_FUNCTION(mysqli_rollback)
#else
if (FAIL == mysqlnd_rollback(mysql->mysql, flags, name)) {
#endif
MYSQLI_REPORT_MYSQL_ERROR(mysql->mysql);
RETURN_FALSE;
}
RETURN_TRUE;
Expand Down Expand Up @@ -2350,6 +2353,7 @@ PHP_FUNCTION(mysqli_stmt_attr_set)
#else
if (FAIL == mysql_stmt_attr_set(stmt->stmt, attr, mode_p)) {
#endif
MYSQLI_REPORT_STMT_ERROR(stmt->stmt);
RETURN_FALSE;
}
RETURN_TRUE;
Expand Down
41 changes: 41 additions & 0 deletions ext/mysqli/tests/mysqli_report.phpt
Original file line number Diff line number Diff line change
Expand Up @@ -49,6 +49,20 @@ require_once('skipifconnectfailure.inc');
printf("[009] select_db should have failed\n");
// mysqli_store_result() and mysqli_use_result() cannot be tested, because one would need to cause an error inside the C function to test it

mysqli_multi_query($link, "SELECT 1; FOO;");
mysqli_autocommit($link, true);
mysqli_commit($link);
mysqli_rollback($link);
$stmt = mysqli_stmt_init($link);
mysqli_stmt_prepare($stmt, "SELECT id FROM test WHERE id > ?");
while(mysqli_more_results($link)) {
mysqli_next_result($link);
$res = mysqli_store_result($link);
}
mysqli_next_result($link);

$stmt = mysqli_prepare($link, "SELECT 1");
mysqli_stmt_attr_set($stmt, MYSQLI_STMT_ATTR_CURSOR_TYPE, MYSQLI_CURSOR_TYPE_FOR_UPDATE);

// Check that none of the above would have caused any error messages if MYSQL_REPORT_ERROR would
// not have been set. If that would be the case, the test would be broken.
Expand All @@ -65,6 +79,21 @@ require_once('skipifconnectfailure.inc');
mysqli_real_query($link, "FOO");
mysqli_select_db($link, "Oh lord, let this be an unknown database name");

mysqli_multi_query($link, "SELECT 1; FOO;");
mysqli_autocommit($link, true);
mysqli_commit($link);
mysqli_rollback($link);
$stmt = mysqli_stmt_init($link);
mysqli_stmt_prepare($stmt, "SELECT id FROM test WHERE id > ?");
while(mysqli_more_results($link)) {
mysqli_next_result($link);
$res = mysqli_store_result($link);
}
mysqli_next_result($link);

$stmt = mysqli_prepare($link, "SELECT 1");
mysqli_stmt_attr_set($stmt, MYSQLI_STMT_ATTR_CURSOR_TYPE, MYSQLI_CURSOR_TYPE_FOR_UPDATE);

/*
Internal macro MYSQL_REPORT_STMT_ERROR
*/
Expand Down Expand Up @@ -294,6 +323,18 @@ Warning: mysqli_prepare(): (%d/%d): You have an error in your SQL syntax; check

Warning: mysqli_real_query(): (%d/%d): You have an error in your SQL syntax; check the manual that corresponds to your %s server version for the right syntax to use near 'FOO' at line 1 in %s on line %d

Warning: mysqli_autocommit(): (%s/%d): Commands out of sync; you can't run this command now in %s on line %d

Warning: mysqli_commit(): (%s/%d): Commands out of sync; you can't run this command now in %s on line %d

Warning: mysqli_rollback(): (%s/%d): Commands out of sync; you can't run this command now in %s on line %d

Warning: mysqli_stmt_prepare(): (%s/%d): Commands out of sync; you can't run this command now in %s on line %d

Warning: mysqli_store_result(): (%s/%d): You have an error in your SQL syntax; check the manual that corresponds to your %s server version for the right syntax to use near 'FOO' at line 1 in %s on line %d

Warning: mysqli_stmt_attr_set(): (%s/%d): Not implemented in %s on line %d

Warning: mysqli_kill(): processid should have positive value in %s on line %d

Warning: mysqli_stmt_prepare(): (%d/%d): You have an error in your SQL syntax; check the manual that corresponds to your %s server version for the right syntax to use near 'FOO' at line 1 in %s on line %d
Expand Down
1 change: 1 addition & 0 deletions ext/mysqlnd/mysqlnd_ps.c
Original file line number Diff line number Diff line change
Expand Up @@ -411,6 +411,7 @@ MYSQLND_METHOD(mysqlnd_stmt, prepare)(MYSQLND_STMT * const s, const char * const

ret = conn->command->stmt_prepare(conn, query_string);
if (FAIL == ret) {
COPY_CLIENT_ERROR(stmt->error_info, *conn->error_info);
goto fail;
}
}
Expand Down

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