Thank you for answering Magnus,
Sorry for disturbing you, but I've searched net-snmp-5.4.2.1 (the most
current/supported release) sources for WATCHER_SIZE_STRLEN flag and haven't
found one, the only flags defined at ./include/net-snmp/agent/watcher.h are:
#define WATCHER_FIXED_SIZE 0x01
#define WATCHER_MAX_SIZE 0x02
Although the flag difinition (#define WATCHER_SIZE_STRLEN 0x08) could be
found in current SVN repository trunk and the comment says 'since Net-SNMP
5.5'.
Is there any roadmap/info on when the Net-SNMP 5.5 release will be generally
available?
Should I use SVN repository trunk or some branch instead?
Best regards,
Eugene
On Sun, Dec 14, 2008 at 10:28 PM, Magnus Fromreide <[email protected]>wrote:
> On Sun, 2008-12-14 at 16:13 +0200, Eugene Yasman wrote:
> > Hello net-snmp coders,
> >
> > I would like to propose null terminated string "magic tie" helper
> > function implementation: netsnmp_register_str_instance().
> >
> > The C source code for null terminated strings can be then
> > automagically generated from MIB by mib2c.tie.conf, see attachments.
> >
> > netsnmp_register_str_instance() behaves like
> > netsnmp_register_int_instance() function, but should receive pointer
> > to netsnmp_ntstr_t structure instead of int pointer, no API functions
> > were modified.
> >
> >
> //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
>
> >
> //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
> >
> > I have been looking for "magic tie" helper for null terminated strings
> > in net-snmp API but haven't found one. Am I missing some point? Do you
> > think it could be helpful for someone else?
>
> I am not all that certain about what a magically tied string is but if
> you just wish to be able to use nul-terminated strings then I would
> recommend that you take a look on the watcher handler which, among other
> things, already handles nul-terminated strings.
>
> Like this:
>
> netsnmp_watcher_info winfo;
> winfo.data = YourBuffer;
> winfo.max_size = sizeof(YourBuffer) - 1;
> winfo.type = ASN_OCTET_STR;
> winfo.flags = WATCHER_MAX_SIZE | WATCHER_SIZE_STRLEN;
> netsnmp_register_watched_instance(YourRegInfo, &winfo);
>
> With this said I think that a generalized mib2c.tie.conf would be a good
> thing, but it is questionable if we need a new helper.
>
> /MF
>
> > Best regards,
> > Eugene
> >
> >
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