Re: rfc: delay SNMPv3 engineID probe til needed by default?

On Mon, Apr 18, 2005 at 01:43:37PM +0100, Dave Shield wrote:
> On Thu, 2005-04-14 at 22:25, Robert Story wrote:
> > Doesn't setting SNMP_FLAGS_DONT_PROBE in the session flags work? That should
> > prevent the probe and allow a valid session struct to be returned.
>
> Possibly, but it still feels like an unnecessary step.
>
> With the old v4 distributions (and even with v5, given a configure
> choice of SNMPv1 or SNMPv2c as the default version), then
>
> snmp_sess_init( &sess );
> ss1 = snmp_open( &sess );
> ss2 = snmp_open( &sess );

so this seems to be the real answer to my question on -users..
this gives a case for not using the single session API (you used
snmp_open rather than snmp_sess_open)

> [I can't believe that I'm arguing to change this, having already
> documented this behaviour in the client-side programming chapter!]

Where can I read this chapter? It looks promising: Sure I can look
at the tutorial, but I could recode each tutorial using functions
out of snmp_client.h rather than snmp_api.h, single session API
rather than the plain snmp_open, snmp_parse_pdu rather than read_objid
etc. but there doesn't seem to be anywhere which says something
like "Unless you are really writing a multithreaded application,
steer clear of snmp_sess_open and stick to snmp_open" i.e., style
recommendations / what is the actual API as opposed to a function
found under the bonnet / what the intended use of the functions
is... Hopefully I'm missing something and could can say "just read
<url>" :-)

Cheers,

Patrick


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