#45220 [NEW]: curl_read callback returns -1 when needs to return size_t (unsigned)

From: brockn at gmail dot com Operating system: CentOS release 4.6 (Final) PHP version: 5.2.6 PHP Bug Type: cURL related Bug description: curl_read callback returns -1 when needs to return size_t (unsigned) Description: ------------ curl_read, can return -1 when it explicitly states its return size_t. This causes curl versions >= 7.18.X to fail with the attached code. Curl stores the callback return value as int, but casts it to a size_t to do a check. This causes the value to become very large and thus the check fails when it should not. I tried to download a snapshot and check that out, but the site appears to be down. Reproduce code: --------------- <?php $host= 'http://bashcurescancer.com/dump-request-variable.php'; $CR = curl_init(); curl_setopt($CR, CURLOPT_TIMEOUT, 60); curl_setopt($CR, CURLOPT_URL, $host); curl_setopt($CR, CURLOPT_POST, 1); curl_setopt($CR, CURLOPT_FAILONERROR, true); curl_setopt($CR, CURLOPT_RETURNTRANSFER, 1); curl_setopt($CR, CURLOPT_SSL_VERIFYPEER, 0); $body = curl_exec( $CR ); $error = curl_error( $CR ); if( !empty( $error )) { print("FAIL: $error\n"); exit(1); } else { print("PASS: " . trim($body) . "\n"); curl_close($CR); exit(0); } ?> Expected result: ---------------- PASS: array ( ) Actual result: -------------- FAIL: Failed to open/read local data from file/application -- Edit bug report at http://bugs.php.net/?id=45220&edit=1 -- Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=45220&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=45220&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=45220&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=45220&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=45220&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=45220&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=45220&r=needscript Try newer version: http://bugs.php.net/fix.php?id=45220&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=45220&r=support Expected behavior: http://bugs.php.net/fix.php?id=45220&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=45220&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=45220&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=45220&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=45220&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=45220&r=dst IIS Stability: http://bugs.php.net/fix.php?id=45220&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=45220&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=45220&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=45220&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=45220&r=mysqlcfg