petabyt

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>

void hijack(uintptr_t *addr, uintptr_t *newa, uint8_t buf[4]) {
	uint32_t temp = (uintptr_t)newa;
	if (addr < newa) {
		temp = (temp - 8) / 4;

petabyt

void assemble_b(uintptr_t *from, uintptr_t *to, uint8_t buf[4]) {
	uint32_t temp = (uintptr_t)to;

	// Assemble instruction based on location
	// of new addr relative to old address
	if (from < to) {
		temp = (temp - 8) / 4;
		memcpy(buf, &temp, 4);
	} else {
		temp = 0xffffff - ((from - to + 4) / 4);

petabyt

void *allocList_[1000];int allocn_=0;void *malloc_(long unsigned int n){
void *x=malloc(n);allocList_[allocn_]=x;allocn_++;return x;}void autofree(){
while (allocn_){allocn_--;free(allocList_[allocn_]);}}
#define malloc(x) malloc_(x)
#define exit(x) autofree(x);exit(x);

petabyt

Install debian android build tools

Most of what you need:

sudo apt install android-sdk android-sdk-platform-23 

If you can't find it, just download Android Studio and abandon this guide.

Accept the android licenses

git clone https://github.com/Shadowstyler/android-sdk-licenses.git

petabyt

Yes.
Kind of.

I'm not a lawyer, nor have I talked to one, but this is my analysis:

Copyright is a nightmare to work with. There are no garuntees
that a company won't sue you.

As for US law, "Reverse engineering (section 1201(f))"

This exception permits

petabyt

# You may use this anywhere, if you link back to this page.

# Usage:
#   $(call getMacro header.h MY_MAC %s)
# The macro will be 0 when it is undefined

# "Parse" C header, converting C macro to Make macro
# See https://gist.github.com/petabyt/898d3437decf65fc04fc50bd0e125362
define importMacro
    $(shell echo "#include <stdio.h>\n \

petabyt

Stubs File

Feb 5 2022

gcc main.S -DSTUBS -include "../model/$(model).h"

xf1.h:

#define MODEL_NAME "Fujifilm XF1"

#define BASE_ADDR 0xa0000000

petabyt

• Ghidra is a great framework
• For quick dissassembly, I use my "re" tool. Source
• If you are going to be reverse engineering Picture Transfer Protocol,
  would suggest you check out my github.com/petabyt/sequoia-ptpy repo.

petabyt

// Inspired by https://gist.github.com/laobubu/d6d0e9beb934b60b2e552c2d03e1409e
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <netdb.h>
#include <signal.h>

#define MAX_CONNECTION 100
#define RESP_BUF_MAX 1000