SNMP Manager Programmer's Guide

Encoding and Decoding Packets
SNMP Manager Programmer’s Guide–134249
6-10
EBufferPreLoad()
next-ptr
identifies where to return the value of next_bp.
buffer
a pointer to the descriptor structure for the buffer for which you want to retrieve
next_bp.
The following call to EBufferNext() retrieves the location of next_bp in a buffer
descriptor structure named ebuff:
OCTET_T *next-pointer;
EBUFFER_T ebuff;
next-pointer = EBufferNext(&ebuff);
EBufferPreLoad()
This function sets up buffer descriptors for an allocated buffer to which you have already
written information but for which you have not initialized EBUFFER_T descriptors.
EBufferPreLoad() preserves the contents of your buffer, sets start_bp and next_bp based
on start-byte and num-bytes arguments, and sets remaining to zero.
BFL_IS_DYNAMIC
BFL_IS_STATIC
are Manager Services defines indicating whether you allocated dynamic or static
memory, respectively, for the buffer.
buffer
a pointer to the descriptor structure for the buffer for which you want descriptors
initialized.
start-byte
identifies the byte to which start_bp should point.
num-bytes
is the number of bytes of interest in the buffer following start-byte.
EBufferPreLoad() sets next_bp to point to the byte following the last byte of interest.
EBufferPreLoad( {BFL_IS_DYNAMIC | BFL_IS_STATIC},
buffer, start-byte, num-bytes);
void EBufferPreload (unsigned int flags,
EBUFFER_T *buffer,
OCTET_T *start-byte,
ALENGTH_T num-bytes);