Bug #79569 [Opn->Fbk]: State leak between SNMP::walk(oid, false) calls

Edit report at https://bugs.php.net/bug.php?id=79569&edit=1 ID: 79569 Updated by: cmb@php.net Reported by: grzegorz129 at gmail dot com Summary: State leak between SNMP::walk(oid, false) calls -Status: Open +Status: Feedback Type: Bug Package: SNMP related Operating System: N/A PHP Version: 7.4.5 -Assigned To: +Assigned To: cmb Block user comment: N Private report: N New Comment: Please compare with the behavior of snmpwalk(); would that give the desired results? Previous Comments: ------------------------------------------------------------------------ [2020-05-05 22:25:02] grzegorz129 at gmail dot com Description: ------------ When SNMP::walk() is called with a numeric OID it provides generic results any number of times. However, as soon as it's called with the textual OID corresponding to the numeric one any subsequent calls with that numerical OID will suddenly start returning results in a different format (exactly like with the textual one). It's pretty hard to describe, however looking at the "Actual result" section clearly shows the problem. Test script: --------------- /* No simple script available due to external server being required. - \SNMP was configured with v3 protocol including auth & priv - oid_output_format = \SNMP_OID_OUTPUT_SUFFIX - exceptions_enabled = \SNMP::ERRNO_ANY - quick_print = true #1 ‌‌->walk('.1.3.6.1.4.1.6574.2.1.1', false); #2 ->walk('.1.3.6.1.4.1.6574.2.1.1', false); => result exactly like in #1 #3 ->walk('SYNOLOGY-DISK-MIB::diskTable', false); => result with names #4 ->walk('.1.3.6.1.4.1.6574.2.1.1', false); => result like in #3 instead of #1-#2 */ Actual result: -------------- ‌‌$snmp->walk('.1.3.6.1.4.1.6574.2.1.1', false); ‌array ( 'synology.2.1.1.2.0' => '"Drive 1"', 'synology.2.1.1.2.1' => '"Drive 2"', 'synology.2.1.1.2.2' => '"Drive 3"', 'synology.2.1.1.2.3' => '"Drive 4"', 'synology.2.1.1.2.4' => '"Drive 5"', 'synology.2.1.1.3.0' => '"WD40EFRX-68WT0N0 "', 'synology.2.1.1.3.1' => '"WD40EFRX-68N32N0 "', 'synology.2.1.1.3.2' => '"ST6000VN0033-2EE110 "', 'synology.2.1.1.3.3' => '"WD60EFRX-68L0BN1 "', 'synology.2.1.1.3.4' => '"ST1000LM010-9YH146 "', 'synology.2.1.1.4.0' => '"SATA"', 'synology.2.1.1.4.1' => '"SATA"', 'synology.2.1.1.4.2' => '"SATA"', 'synology.2.1.1.4.3' => '"SATA"', 'synology.2.1.1.4.4' => '"SATA"', 'synology.2.1.1.5.0' => '1', 'synology.2.1.1.5.1' => '1', 'synology.2.1.1.5.2' => '1', 'synology.2.1.1.5.3' => '1', 'synology.2.1.1.5.4' => '1', 'synology.2.1.1.6.0' => '37', 'synology.2.1.1.6.1' => '34', 'synology.2.1.1.6.2' => '39', 'synology.2.1.1.6.3' => '37', 'synology.2.1.1.6.4' => '31', ) ‌‌$snmp->walk('SYNOLOGY-DISK-MIB::diskTable', false); ‌array ( 'diskID.0' => '"Drive 1"', 'diskID.1' => '"Drive 2"', 'diskID.2' => '"Drive 3"', 'diskID.3' => '"Drive 4"', 'diskID.4' => '"Drive 5"', 'diskModel.0' => '"WD40EFRX-68WT0N0 "', 'diskModel.1' => '"WD40EFRX-68N32N0 "', 'diskModel.2' => '"ST6000VN0033-2EE110 "', 'diskModel.3' => '"WD60EFRX-68L0BN1 "', 'diskModel.4' => '"ST1000LM010-9YH146 "', 'diskType.0' => '"SATA"', 'diskType.1' => '"SATA"', 'diskType.2' => '"SATA"', 'diskType.3' => '"SATA"', 'diskType.4' => '"SATA"', 'diskStatus.0' => '1', 'diskStatus.1' => '1', 'diskStatus.2' => '1', 'diskStatus.3' => '1', 'diskStatus.4' => '1', 'diskTemperature.0' => '37', 'diskTemperature.1' => '34', 'diskTemperature.2' => '39', 'diskTemperature.3' => '37', 'diskTemperature.4' => '31', ) ‌‌$snmp->walk('.1.3.6.1.4.1.6574.2.1.1', false); ‌array ( 'diskID.0' => '"Drive 1"', 'diskID.1' => '"Drive 2"', 'diskID.2' => '"Drive 3"', 'diskID.3' => '"Drive 4"', 'diskID.4' => '"Drive 5"', 'diskModel.0' => '"WD40EFRX-68WT0N0 "', 'diskModel.1' => '"WD40EFRX-68N32N0 "', 'diskModel.2' => '"ST6000VN0033-2EE110 "', 'diskModel.3' => '"WD60EFRX-68L0BN1 "', 'diskModel.4' => '"ST1000LM010-9YH146 "', 'diskType.0' => '"SATA"', 'diskType.1' => '"SATA"', 'diskType.2' => '"SATA"', 'diskType.3' => '"SATA"', 'diskType.4' => '"SATA"', 'diskStatus.0' => '1', 'diskStatus.1' => '1', 'diskStatus.2' => '1', 'diskStatus.3' => '1', 'diskStatus.4' => '1', 'diskTemperature.0' => '37', 'diskTemperature.1' => '34', 'diskTemperature.2' => '39', 'diskTemperature.3' => '37', 'diskTemperature.4' => '31', ) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=79569&edit=1