eSNMP API Routines
cmp_oid_prefix
cmp_oid_prefix
Compares an OID against a prefix.
Format
int cmp_oid_prefix ( oid *q,
oid *prefix );
Description
A prefix could be the OID on an object in the object table. The elements beyond
the prefix are the instance information.
This routine does an element-by-element comparison, from the most significant
element (element 0) to the least significant element. If all elements of the prefix
OID match exactly with corresponding elements of the
OID q
structure, it is
considered an even match if the
OID q
structure contains additional elements.
The
OID q
structure is considered greater than the prefix if the first nonmatching
element is larger. It is considered smaller if the first nonmatching element is less.
Return Values
-1
The OID is less than the prefix.
0
The OID is in prefix.
1
The OID is greater than the prefix.
Example
#include <esnmp.h>
OID *q;
OBJECT *object;
if (cmp_oid_prefix(q, &object->oid) == 0)
printf("matches prefix\n");
5–48 eSNMP API Routines
