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MDL-79539 core: handling negative input to get the upper value

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Co-authored-by: Alain Corbière <alain.corbiere@univ-lemans.fr>
This commit is contained in:
meirzamoodle 2023-10-02 14:00:36 +07:00 committed by Meirza
parent c29a812323
commit 15c7909885
3 changed files with 25 additions and 3 deletions
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19
lib/classes/message/inbound/address_manager.php
View File

@ -458,12 +458,27 @@ class address_manager {
* @return string The encoded binary data
*/
protected function pack_int($int) {
// If PHP environment is running on a 64-bit.
if (PHP_INT_SIZE === 8) {
$l = intdiv($int, pow(2, 32)); // 32-bit integer quotient.
$r = $int % pow(2, 32); // 32-bit integer remaining.
// Will be used to ensures that the result remains as a 32-bit unsigned integer and
// doesn't extend beyond 32 bits.
$notation = 0xffffffff;
if ($int < 0) {
// If the given integer is negative, set it to -1.
$l = -1;
} else {
// Otherwise, calculate the upper 32 bits of the 64-bit integer.
$l = ($int >> 32) & $notation;
}
// Calculate the lower 32 bits of the 64-bit integer.
$r = $int & $notation;
// Pack the values of $l (upper 32 bits) and $r (lower 32 bits) into a binary string format.
return pack('NN', $l, $r);
} else {
// Pack the values into a binary string format.
return pack('NN', 0, $int);
}
}

7
lib/db/upgrade.php
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@ -3099,5 +3099,12 @@ privatefiles,moodle|/user/files.php';
upgrade_main_savepoint(true, 2022112805.03);
}
if ($oldversion < 2022112805.13) {
// Delete datakey with datavalue -1.
$DB->delete_records('messageinbound_datakeys', ['datavalue' => '-1']);
// Main savepoint reached.
upgrade_main_savepoint(true, 2022112805.13);
}
return true;
}

2
version.php
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@ -29,7 +29,7 @@
defined('MOODLE_INTERNAL') || die();
$version = 2022112805.12; // 20221128 = branching date YYYYMMDD - do not modify!
$version = 2022112805.13; // 20221128 = branching date YYYYMMDD - do not modify!
// RR = release increments - 00 in DEV branches.
// .XX = incremental changes.
$release = '4.1.5+ (Build: 20230929)'; // Human-friendly version name