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Bug #20494 Empty response gives wrong answer
Submitted: 2002-11-19 08:59 UTC Modified: 2002-12-01 16:36 UTC
Votes:1
Avg. Score:4.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:0 (0.0%)
Same OS:1 (100.0%)
From: kpesio at saunalahti dot fi Assigned:
Status: No Feedback Package: SNMP related
PHP Version: 4.2.3 OS: RedHat 7.3
Private report: No CVE-ID: None
View Developer Edit
 [2002-11-19 08:59 UTC] kpesio at saunalahti dot fi 
ucd-snmp-4.2.6 & PHP-4.2.3 & Cisco2900xl switch

Example code:

$uptime = snmpget("x.x.x.x", "public", "system.sysUpTime.0");
$ct = snmpget("x.x.x.x", "public", "system.sysContact.0");
echo ">System UpTime : $uptime<br>System Contact :$ct";

If sysContact is not set in Cisco (null string) the sysUpTime would be copied into $ct. Same effect if using snmpwalk. Fixed by adding into ext/snmp/snmp.c (v1.56) at line 307:

  retry:
    /* clear buffers */
    buf[0]=(char)0;
    buf2[0]=(char)0;

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 [2002-11-19 11:38 UTC] sniper@php.net 
Please try using this CVS snapshot:

  http://snaps.php.net/php4-latest.tar.gz
 
For Windows:
 
  http://snaps.php.net/win32/php4-win32-latest.zip

and the latest net-snmp library.
 [2002-12-01 16:36 UTC] sniper@php.net 
No feedback was provided. The bug is being suspended because
we assume that you are no longer experiencing the problem.
If this is not the case and you are able to provide the
information that was requested earlier, please do so and
change the status of the bug back to "Open". Thank you.
 
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