DPI_PACKET_LEN()--Get Length of DPI Packet
Syntax
#include <qtossapi.h> int DPI_PACKET_LEN( unsigned char *packet_p );
Service Program Name: QTOSSAPI
Default Public Authority: *USE
Threadsafe: No
The DPI_PACKET_LEN() macro returns the length (number of bytes) of a Distributed Protocol Interface (DPI®) packet.
Authorities and Locks
None.
Parameters
- packet_p
- (Input) A pointer to a (serialized) DPI packet.
Return Value
| value | An integer value that represents the total DPI packet length. |
For more information, see the Simple Network
Management Protocol (SNMP) Support
manual.
Usage Notes
The DPI_PACKET_LEN() macro generates a C expression that returns an integer that represents the total length of a DPI packet. It uses the first 2 bytes (in network byte order) of the packet to calculate the length. The length returned includes these first 2 bytes.
Example
Note: By using the code examples, you agree to the terms of the Code license and disclaimer information.
#include <qtossapi.h>
unsigned char *pack_p;
int length;
pack_p = mkDPIclose(SNMP_CLOSE_goingDown);
if (pack_p) {
length = DPI_PACKET_LEN(pack_p);
/* Send packet to agent or subagent. */
}
API introduced: V3R6