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Description
Use the EXACT mode for evaluating an instance for
GetNext
this routine assumes that the search for data will be performed using greater
than or equal to matches.
Return Values
Carry value is 0
Carry value is 1
Examples
1. The following example converts an instance to an IP address for a
operation, which is an EXACT match.
#include <esnmp.h>
OID
OBJECT
int instLength;
unsigned int instance[6];
unsigned int ip_addr;
int
-- The instance is N.1.A.A.A.A where the A's are the IP address--
instLength = oid2instance(incoming, object, instance, 6);
if (instLength == 6 && !inst2ip(&instance[2], 4, &ip_addr, TRUE,0)) {
}
else
2. The following example shows a
one key or in which the ipaddr value is the least significant part of the
key. This is a NEXT match; therefore, a value of 1 is passed back for the
carry value.
#include <esnmp.h>
OID
OBJECT
int instLength;
unsigned int instance[6];
unsigned int ip_addr;
int
-- The instance is N.1.A.A.A.A where the A's are the IP address--
instLength = oid2instance(incoming, object, instance, 6);
iface = (instLength < 1) ? 0 :(int) instance[0];
iface += inst2ip(&instance[2], instLength - 2, &ip_addr, FALSE, 1);
3. In the following example, the search key consists of multiple parts. If
you are doing a
for the search key, so that you can perform a cascaded greater-than or
equal-to search.
and
operations, use the NEXT mode. When using NEXT mode,
GetBulk
*incoming = &method->varbind->name;
*object
= method->object;
iface;
iface = (int) instance[0];
return ESNMP_MTHD_noSuchInstance;
*incoming = &method->varbind->name;
*object
= method->object;
iface;
GetNext
Get
The routine completed successfully.
For EXACT match, an error occurred. For NEXT
match, there was a carry. (If there was a carry,
the returned ipaddr is 0.)
operation in which there is only
GetNext
operation, you must find the next possible value
eSNMP API Routines
inst2ip
and
operations. For
Set
Get
eSNMP API Routines 5–45
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