Bug #81481 [NEW]: xml_get_current_byte_index limited to 32-bit numbers on 64-bit builds

From: dev at b65sol dot com Operating system: 64-bit Linux PHP version: 8.0.11 Package: XML Reader Bug Type: Bug Bug description:xml_get_current_byte_index limited to 32-bit numbers on 64-bit builds Description: ------------ xml_get_current_byte_index is limited to 32-bit integers even on 64-bit builds, resulting in negative or incorrectly small results after parsing 2GiB or more XML text, which is well below PHP_INT_MAX. To get the "Expected" results listed, I changed the definition on XML_GetCurrentByteIndex to be long instead of int, but I'm unsure if that's a truly portable fix. Test script: --------------- <?php $parser = xml_parser_create('UTF-8'); xml_set_element_handler( $parser, 'startelement', null ); $emptylong = str_repeat(' ', 1024*1024); xml_parse($parser, '<root><i></i><b/><ext>Hello</ext>', false); for($i = 0; $i < 2896; $i++) { xml_parse($parser, $emptylong, false); } xml_parse($parser, '<ext></ext><ext></ext></root>', false); function startelement($parser, $name, $attribute) { if ( $name == 'EXT' ) { echo "Byte Index:".xml_get_current_byte_index($parser)."\n"; } } Expected result: ---------------- Byte Index:21 Byte Index:3036676133 Byte Index:3036676144 Actual result: -------------- Byte Index:21 Byte Index:-1258291163 Byte Index:-1258291152 -- Edit bug report at https://bugs.php.net/bug.php?id=81481&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=81481&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=81481&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=81481&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=81481&r=needscript Try newer version: https://bugs.php.net/fix.php?id=81481&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=81481&r=support Expected behavior: https://bugs.php.net/fix.php?id=81481&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=81481&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=81481&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=81481&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=81481&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=81481&r=dst IIS Stability: https://bugs.php.net/fix.php?id=81481&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=81481&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=81481&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=81481&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=81481&r=mysqlcfg