tlv.c File Reference

BER-TLV parser and encoder for Aliro protocol: parse TLVs with definite length and advance offset, compute encoded sizes, and write new TLVs. More...

#include "tlv.h"
#include <string.h>
#include <limits.h>

Include dependency graph for tlv.c:

Functions
static size_t	tag_size (uint32_t tag)
	Compute the BER-TLV tag byte count for a given tag value: 1 byte for 0x00–0xff, 2 for 0x0100–0xffff, 3 for 0x010000–0xffffff, or 0 if tag is unsupported.
static size_t	length_size (size_t length)
	Compute the BER-TLV length field byte count for a given value length: 1 byte for 0x00–0x7f, 2 for 0x80–0xff, 3 for 0x0100–0xffff, or 0 if length is unsupported.

Detailed Description

BER-TLV parser and encoder for Aliro protocol: parse TLVs with definite length and advance offset, compute encoded sizes, and write new TLVs.