snmp API: read_objid should not return an error in the case

I am learning snmp API by tutorials
(http://net-snmp.sourceforge.net/wiki/index.php/Tutorials). One of
them prints an error in place where is no one as I suppose,
http://net-snmp.sourceforge.net/wiki/index.php/TUT:Simple_Async_Application

here is the function from that tutorial:

void initialize (void)
{
  struct oid *op = oids;

  /* Win32: init winsock */
  SOCK_STARTUP;

  /* initialize library */
  init_snmp("asynchapp");

  /* parse the oids */
  while (op->Name) {
    op->OidLen = sizeof(op->Oid)/sizeof(op->Oid[0]);
    if (!read_objid(op->Name, op->Oid, &op->OidLen)) {
      snmp_perror("read_objid");
      exit(1);
    }
    op++;
  }
}


Below cut of the code reproduces an assumed fault:

#include <net-snmp/net-snmp-config.h>
#include <net-snmp/net-snmp-includes.h>
#include <string.h>

int main(int argc, char ** argv)
{
    oid anOID[MAX_OID_LEN];
    size_t anOID_len = MAX_OID_LEN;

    init_snmp("snmptest");

    if(!read_objid("system.sysDescr.0", anOID, &anOID_len))
        snmp_perror("read_objid");
    else
        puts("no errors");

}


the output:

No log handling enabled - turning on stderr logging
read_objid: Unknown Object Identifier (Sub-id not found: (top) -> system)


What is wrong there?

Thanks in advance.

-- 
/BR, Alexander

-------------------------------------------------------------------------
This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
Build the coolest Linux based applications with Moblin SDK & win great prizes
Grand prize is a trip for two to an Open Source event anywhere in the world
http://moblin-contest.org/redirect.php?banner_id=100&url=/
_______________________________________________
Net-snmp-users mailing list
[email protected]
Please see the following page to unsubscribe or change other options:
https://lists.sourceforge.net/lists/listinfo/net-snmp-users