Bug #69739 [NEW]: PHP SNMP Real Walk returns bad characters

From: kriz at mysafira dot net Operating system: Ubuntu 14.04.2, Windows 7 x64 PHP version: Irrelevant Package: SNMP related Bug Type: Bug Bug description:PHP SNMP Real Walk returns bad characters Description: ------------ I read via PHP function snmp2_real_walk OID value '.1.3.6.1.2.1.17.4.3.1.1' for get MAC address from Cisco switch device. Problem is, that some results (randomly around the 50 results of the 200) return bad characters (yet I have found a mistake if I read only MAC addresses). Ie.: correct output examples: [Dot1dTpFdbAddres] => 30 05 5C 38 A7 8C [Dot1dTpFdbAddres] => C0 7B BC 0E 56 18 wrong output examples - device return randomly none-hex value for hex values, ie.: [iso.3.6.1.2.1.17.4.3.1.1.92.38.10.129.123.27] => Hex-STRING: 5C 26 0A 81 7B 1B [iso.3.6.1.2.1.17.4.3.1.1.120.69.196.42.25.241] => Hex-STRING: 78 45 C4 2A 19 F1 [iso.3.6.1.2.1.17.4.3.1.1.120.69.196.42.27.169] => Hex-STRING: 78 45 C4 2A 1B A9 [iso.3.6.1.2.1.17.4.3.1.1.120.69.196.42.34.45] => STRING: "xE�*\"-" [iso.3.6.1.2.1.17.4.3.1.1.120.172.192.142.199.214] => STRING: "x�����" [iso.3.6.1.2.1.17.4.3.1.1.124.30.179.254.9.201] => Hex-STRING: 7C 1E B3 FE 09 C9 If I try read OID '.1.3.6.1.2.1.17.4.3.1.1' from program Getif, I have got correct results. The tested solution that fails: PHP - Chnaged snmp2_real_walk by snmprealwalk Changed encoding of files (UTF8, ANSI) SNMP longer timeout and try add PHP sleep() function PHP directive: snmp_set_oid_numeric_print(1) PHP directive: snmp_set_quick_print(true) PHP directive: snmp_set_enum_print(true) PHP directive: snmp_set_valueretrieval(SNMP_VALUE_LIBRARY and SNMP_VALUE_PLAIN) Resolution - add new parameter for: snmprealwalk snmp2_real_walk for forced return Hex-STRING result. Test script: --------------- $arrDot1dTpFdbAddress = snmprealwalk("SomeIp:161", "ReadCommunity", ".1.3.6.1.2.1.3.1.1.2", (1000000 * 1), 3); echo '<pre>'; print_r($arrDot1dTpFdbAddress); echo '</pre>'; -- Edit bug report at https://bugs.php.net/bug.php?id=69739&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=69739&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=69739&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=69739&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=69739&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=69739&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=69739&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=69739&r=needscript Try newer version: https://bugs.php.net/fix.php?id=69739&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=69739&r=support Expected behavior: https://bugs.php.net/fix.php?id=69739&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=69739&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=69739&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=69739&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=69739&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=69739&r=dst IIS Stability: https://bugs.php.net/fix.php?id=69739&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=69739&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=69739&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=69739&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=69739&r=mysqlcfg