ID: 34938 Updated by: [EMAIL PROTECTED] Reported By: php at ter dot dk -Status: Open +Status: Feedback Bug Type: Network related Operating System: Linux 2.4 debian sarge PHP Version: 5.1.0RC3 Assigned To: tony2001 New Comment:
Please try using this CVS snapshot: http://snaps.php.net/php5-latest.tar.gz For Windows: http://snaps.php.net/win32/php5-win32-latest.zip Try next snapshot. The snapshot you're trying doesn't include the patch yet. Previous Comments: ------------------------------------------------------------------------ [2005-10-24 01:05:51] php at ter dot dk I think we have a major regression in latest snaps (same result in php5-200510232030 and php5-200510232230) where the return values are pretty strange for any host checked, even short hosts, e.g.: $ ~/dev/php5-200510232230/sapi/cli/php -r 'var_dump(dns_get_record("php.net",DNS_MX));' array(1) { [0]=> array(6) { ["host"]=> string(7) "php.net" ["type"]=> string(2) "MX" ["pri"]=> int(19) ["target"]=> string(0) "" ["class"]=> string(2) "IN" ["ttl"]=> int(65537) } } $ ~/dev/php5-200510232230/sapi/cli/php -r 'var_dump(dns_get_record("php.net",DNS_A));' array(1) { [0]=> array(5) { ["host"]=> string(7) "php.net" ["type"]=> string(1) "A" ["ip"]=> string(10) "0.4.64.246" ["class"]=> string(2) "IN" ["ttl"]=> int(65536) } } $ ~/dev/php5-200510232230/sapi/cli/php -r 'var_dump(dns_get_record("php.net",DNS_NS));' array(4) { [0]=> array(5) { ["host"]=> string(7) "php.net" ["type"]=> string(2) "NS" ["target"]=> string(0) "" ["class"]=> string(2) "IN" ["ttl"]=> int(65536) } [1]=> array(5) { ["host"]=> string(37) "\003ns2\007easydns\003com\000.php.net" ["type"]=> string(2) "NS" ["target"]=> string(0) "" ["class"]=> string(2) "IN" ["ttl"]=> int(65536) } [2]=> array(5) { ["host"]=> string(20) "\003ns1\192).php.net" ["type"]=> string(2) "NS" ["target"]=> string(0) "" ["class"]=> string(2) "IN" ["ttl"]=> int(65536) } [3]=> array(5) { ["host"]=> string(24) "\007remote1\192).php.net" ["type"]=> string(2) "NS" ["target"]=> string(0) "" ["class"]=> string(2) "IN" ["ttl"]=> int(65536) } } It seems like there is some kind of offset error (e.g. octet 1 and 2 in the IP address for the A lookup is presented as octet 3 and 4) On the lighter side the long hostnames behave in the new way as well. I'm sorry if I'm just impatient. - Peter Brodersen ------------------------------------------------------------------------ [2005-10-23 20:35:32] [EMAIL PROTECTED] This bug has been fixed in CVS. Snapshots of the sources are packaged every three hours; this change will be in the next snapshot. You can grab the snapshot at http://snaps.php.net/. Thank you for the report, and for helping us make PHP better. ------------------------------------------------------------------------ [2005-10-21 05:14:48] php at ter dot dk Please be aware of line breaks added by the bug system. ------------------------------------------------------------------------ [2005-10-21 05:08:11] php at ter dot dk Description: ------------ (the error also occurs in PHP5.0.5) dns_get_record() results in strange behaviour when supplied with long hostnames, e.g.: $ host -t mx 0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0.dk 0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0.dk MX 10 mail.0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0.dk .. but: $ php -v PHP 5.0.5-1.dotdeb.1 (cli) (built: Sep 7 2005 10:07:31) Copyright (c) 1997-2004 The PHP Group Zend Engine v2.0.5, Copyright (c) 1998-2004 Zend Technologies $ php -r 'var_dump(dns_get_record("0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0.dk",DNS_MX));' array(0) { } $ ~/dev/php-5.1.0RC3/sapi/cli/php -v PHP 5.1.0RC3 (cli) (built: Oct 21 2005 04:40:34) Copyright (c) 1997-2005 The PHP Group Zend Engine v2.1.0-dev, Copyright (c) 1998-2005 Zend Technologies $ ~/dev/php-5.1.0RC3/sapi/cli/php -r 'var_dump(dns_get_record("0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0.dk",DNS_MX));' array(0) { } (yes, the domain name is valid and has a MX entry) Furthermore, strange results arrive when dns_get_record() is called with long hostnames several times after a succesful lookup (for at shorter hostname). According to var_dump(), dns_get_record() loops between returning an array with an int, a recursive array and NULL. The error is not restricted to DNS_MX - same result will show up for e.g. DNS_A and DNS_NS requests. Before suspecting the output of dns_get_record() I was baffled when php actually segfaulted when beginning a foreach()-loop with the return value of dns_get_record(). I suppose it happened when foreach() was supplied with a recursion. Reproduce code: --------------- <?php var_dump(dns_get_record("0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0.dk",DNS_MX)); var_dump(dns_get_record("0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0.dk",DNS_MX)); var_dump(dns_get_record("php.net",DNS_MX)); var_dump(dns_get_record("0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0.dk",DNS_MX)); var_dump(dns_get_record("0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0.dk",DNS_MX)); var_dump(dns_get_record("0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0.dk",DNS_MX)); var_dump(dns_get_record("0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0.dk",DNS_MX)); var_dump(dns_get_record("0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0.dk",DNS_MX)); var_dump(dns_get_record("0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0.dk",DNS_MX)); ?> Expected result: ---------------- array(1) { [0]=> array(6) { ["host"]=> string(7) "0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0.dk" ["type"]=> string(2) "MX" ["pri"]=> int(10) ["target"]=> string(12) "mail.0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0o0.dk" ["class"]=> string(2) "IN" ["ttl"]=> int(127779) } } (a couple of times) Actual result: -------------- array(0) { } array(0) { } array(2) { [0]=> array(6) { ["host"]=> string(7) "php.net" ["type"]=> string(2) "MX" ["pri"]=> int(5) ["target"]=> string(12) "osu1.php.net" ["class"]=> string(2) "IN" ["ttl"]=> int(63337) } [1]=> array(6) { ["host"]=> string(7) "php.net" ["type"]=> string(2) "MX" ["pri"]=> int(15) ["target"]=> string(15) "smtp.osuosl.org" ["class"]=> string(2) "IN" ["ttl"]=> int(63337) } } array(1) { [0]=> int(16384) } array(1) { [0]=> array(1) { [0]=> *RECURSION* } } array(1) { [0]=> NULL } array(1) { [0]=> int(16384) } array(1) { [0]=> array(1) { [0]=> *RECURSION* } } array(1) { [0]=> NULL } ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=34938&edit=1
