#23685 [Opn->Fbk]: fake values returned when OID value is an empty string

ID: 23685 Updated by: sniper@php.net Reported By: s dot zagrodzki at net dot icm dot edu dot pl -Status: Open +Status: Feedback Bug Type: SNMP related Operating System: Linux 2.2 PHP Version: 4.3.2RC4-dev New Comment: Please try using this CVS snapshot: http://snaps.php.net/php4-STABLE-latest.tar.gz For Windows: http://snaps.php.net/win32/php4-win32-STABLE-latest.zip Make sure the snapshot is build later than Jul 16, 2003 05:30!! Previous Comments: ------------------------------------------------------------------------ [2003-07-14 15:15:23] harrie@php.net Attempted in various ways, but I cannot reproduce this. Maybe it is a Linux problem, since I do PHP development on a CYGWIN system. Neither do I get the same results as the 'user contributed note' on snmpget. ------------------------------------------------------------------------ [2003-07-14 09:44:57] s dot zagrodzki at net dot icm dot edu dot pl this issue was also mentioned by javierb at gmx dot net in user contributed notes to snmpget() function manual: http://www.php.net/manual/en/function.snmpget.php ------------------------------------------------------------------------ [2003-07-14 03:38:00] s dot zagrodzki at net dot icm dot edu dot pl I tried using snmp module from 20030714 snapshot - didn't help. ------------------------------------------------------------------------ [2003-07-14 02:35:43] s dot zagrodzki at net dot icm dot edu dot pl this is a part of tcpdump of snmpwalk query: ... GetResponse(50) .1.3.6.1.2.1.31.1.1.1.18.3="lacze do Obs. Astr." GetNextRequest(31) .1.3.6.1.2.1.31.1.1.1.18.3 GetResponse(31) .1.3.6.1.2.1.31.1.1.1.18.4="" GetNextRequest(31) .1.3.6.1.2.1.31.1.1.1.18.4 GetResponse(59) .1.3.6.1.2.1.31.1.1.1.18.5=": lacze do Wydz. Zarzadzania" ... as you can see, snmp agent returns empty value, response length is also correct. And snmpwalk utility also gives correct results. ------------------------------------------------------------------------ [2003-07-13 14:49:20] harrie@php.net I tried this with other variables (I do not have an SNMP agent implementing the ifXTable) and cannot reproduce it. Therefore I am thinking that it maybe the SNMP agent which returns these values and as a result they show up in PHP. Could you confirm that this is not a problem with the SNMP agent/router. ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/23685 -- Edit this bug report at http://bugs.php.net/?id=23685&edit=1