From: estesp at fastmail dot us
Operating system: Linux
PHP version: 5CVS-2007-10-10 (snap)
PHP Bug Type: SNMP related
Bug description: IPv6 addresses not supported in SNMP extension
Description:
------------
The snmp interface code in php5 does not properly support IPv6 addresses
for the hostname. Since net-snmp 5.x the SNMP daemon can be listening on
udp6 port and therefore, the hostname passed could be a valid IPv6
address.
However, the code in the snmp extension has:
if ((pptr = strchr (hostname, ':'))) {
remote_port = strtol (pptr + 1, NULL, 0);
}
So, instead of defaulting to the usual (default) snmp port, given an IPv6
address, it is taking everything past the first colon as the port number..
which, I believe is going to give a very interesting port number for most
IPv6 addresses :)
Reproduce code:
---------------
Just call snmpget() with an IPv6 IP address.. you will get a host not
found, or similar:
$host = '0000:0000:0000:0000:0000:0000:0000:0001';
$community = 'public';
$sysName = snmpget($host, $community, "system.sysName.0");
print "$sysName
Expected result:
----------------
snmpget() should work for IPv6 addresses given you have a net-snmp version
with IPv6 support and have snmpd listening on an IPv6 transport.
Actual result:
--------------
PHP Warning: snmpget(): Could not open snmp connection: Unknown host
(0000:0000:0000:0000:0000:0000:0000:0001) in /my_ipv6_php on line 4
There may be other issues here as "unknown host" sounds like a getaddrinfo
problem, but since doing an snmpget on the server in Ipv6 mode outside of
php5 works, I have to bet that something in the snmp interface in php5 is
broken with respect to IPv6.
--
Edit bug report at http://bugs.php.net/?id=42918&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=42918&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=42918&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=42918&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=42918&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=42918&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=42918&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=42918&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=42918&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=42918&r=support
Expected behavior: http://bugs.php.net/fix.php?id=42918&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=42918&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=42918&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=42918&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=42918&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=42918&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=42918&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=42918&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=42918&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=42918&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=42918&r=mysqlcfg
