KISS Protocol (Keep It Simple Stupid) parsing library for Amateur Radio
- no dynamic memory allocations
- supports parsing with partial data
#include <stdint.h>
#include <stdio.h>
#include <assert.h>
#include "libkiss.h"
void print_frame(struct kiss_frame* frame) {
printf("Frame command=%d port=%d data=", frame->command.details.command, frame->command.details.port);
for (uint16_t i = 0; i < frame->data_size; i++) {
printf("%02x ", frame->data[i]);
}
printf("\n");
}
int main(int argc, char* argv[]) {
(void)argc;
(void)argv;
struct kiss_frame frame;
// Parse in a single pass
printf("SINGLE PASS\n");
uint8_t data1[] = {FEND, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, FEND};
uint16_t data1_size = sizeof(data1) / sizeof(uint8_t);
kiss_init(&frame);
assert(DONE == kiss_parse(&frame, data1, data1_size));
print_frame(&frame);
// Parse in multiple passes (useful if reading partial data from a socket or file)
// CONTINUE means that the buffer was consumed and no frame was parsed yet
// DONE means a frame is parsed and the buffer can be re-used
// DONE_HAS_MORE means a frame has been parsed, but there is remaining data in the buffer that needs to be fed. Keep calling until the state is DONE or CONTINUE.
printf("\nMULTIPLE PASSES\n");
uint8_t data2[] = {FEND, 0x00, 0x01, FEND, FEND, 0x00, 0x02, 0x03, 0x04, 0x05, 0x06, FEND};
uint16_t data_size = sizeof(data2) / sizeof(uint8_t);
kiss_init(&frame);
enum kiss_parse_state state = CONTINUE;
for (int i = i; i < data_size; i += 3) {
state = kiss_parse(&frame, data2 + i, 3);
if (DONE == state) {
print_frame(&frame);
} else if (DONE_HAS_MORE == state) {
print_frame(&frame);
while(DONE_HAS_MORE == (state = kiss_parse(&frame, data2 + i, 3))) {
print_frame(&frame);
}
if (DONE == state) {
print_frame(&frame);
}
}
}
return 0;
}sudo apt install build-essential meson ninja-build libcmocka-devmakemake testmake installmake uninstall