The fDPIset() function

Format

#include <snmp_dpi.h>
 
void fDPIset(snmp_dpi_set_packet *packet_p);

Parameters

packet_p: A pointer to the first snmp_dpi_set_packet structure in a chain of such structures.

Usage

The fDPIset() function is typically used if you must free a chain of one or more snmp_dpi_set_packet structures. This might be the case if you are in the middle of preparing a chain of such structures for a DPI RESPONSE packet, but then run into an error before you can actually make the response.

If you get to the point where you make a DPI response packet to which you pass the chain of snmp_dpi_set_packet structures, the mkDPIresponse() function will free the chain of snmp_dpi_set_packet structures.

Examples

#include <snmp_dpi.h>
unsigned char       *pack_p;
snmp_dpi_hdr        *hdr_p;
snmp_dpi_set_packet *set_p, *first_p;
long int             num1 = 0, num2 = 0;
 
hdr_p = pDPIpacket(pack_p);              /* assume pack_p     */
/* analyze packet and assume all OK */   /* points to the     */
/* now prepare response; 2 varBinds */   /* incoming packet   */
 
set_p = mkDPIset(snmp_dpi_NULL_p,        /* create first one  */
             "1.3.6.1.2.3.4.5.","1.0",   /* OID=1, instance=0 */
             SNMP_TYPE_Integer32,
             sizeof(num1), &num1);
if (set_p) {                             /* if success, then  */
   first_p = set_p;                      /* save ptr to first */
   set_p   = mkDPIset(set_p,             /* chain next one    */
               "1.3.6.1.2.3.4.5.","1.1", /* OID=1, instance=1 */
               SNMP_TYPE_Integer32,
               sizeof(num2), &num2);
   if (set_p) {                          /* success 2nd one   */
      pack_p = mkDPIresponse(hdr_p,      /* make response     */
                    SNMP_ERROR_noError,  /* It will also free */
                    0L, first_p);        /* the set_p tree    */
      /* send DPI response to agent */
   } else {                              /* 2nd mkDPIset fail */
      fDPIset(first_p);                  /* must free chain   */
   } /* endif */
} /* endif */

Format

Parameters

Usage

Examples

Context