added optional nogc patch by putting file named 'nogc' in ReiNX folde…

…r; updated README

README.md

@@ -20,12 +20,13 @@ To compile with Docker, `chmod +x docker-build.sh` and run the shell script `./d

* Optional custom kernel/secmon/warmboot

* Exclusive ReiNX sysmodules
* FS patches on the fly (NCA verify/cmac and optional nogc)

**FAQ:**
* Exclusive ReiNX sysmodules with built in ES patches

* Wheres muh 'sig patches'? 
*Refer to the GBAtemp thread. Cant up them because its illegal*
**Official thread:**

[HERE](https://gbatemp.net/threads/official-reinx-thread.512203/)

**Credits:**
 

src/kippatches.c

@@ -18,7 +18,7 @@

#include "hwinit/types.h"
#include "kippatches.h"

#include "fs.h"
#include "kippatches/fs.inc"

// TODO: get full hashes somewhere and not just the first 16 bytes
@@ -46,44 +46,48 @@ kippatchset_t kip_patches[] = {
};

int kippatch_apply(u8 *kipdata, u64 kipdata_len, kippatch_t *patch) {
  if (!patch || !patch->diffs) return -1;
    if (!patch || !patch->diffs) return -1;

  for (kipdiff_t *diff = patch->diffs; diff->len; ++diff) {
    if (!diff->len || diff->offset + diff->len > kipdata_len)
      return 1 + (int)(diff - patch->diffs);
    u8 *start = kipdata + diff->offset;
    if (memcmp(start, diff->orig_bytes, diff->len))
      return 1 + (int)(diff - patch->diffs);
    // TODO: maybe start copying after every diff has been verified?
    memcpy(start, diff->patch_bytes, diff->len);
  }
    for (kipdiff_t *diff = patch->diffs; diff->len; ++diff) {
        if (!diff->len || diff->offset + diff->len > kipdata_len)
            return 1 + (int)(diff - patch->diffs);
        u8 *start = kipdata + diff->offset;
        if (memcmp(start, diff->orig_bytes, diff->len))
            return 1 + (int)(diff - patch->diffs);
        // TODO: maybe start copying after every diff has been verified?
        memcpy(start, diff->patch_bytes, diff->len);
    }

  return 0;
    return 0;
}

int kippatch_apply_set(u8 *kipdata, u64 kipdata_len, kippatchset_t *patchset, char **filter) {
  for (kippatch_t *p = patchset->patches; p && p->name; ++p) {
    int found = 0;
    for (char **filtname = filter; filtname && *filtname; ++filtname) {
      if (!strcmp(p->name, *filtname)) {
        found = 1;
        break;
      }
    }
    for (kippatch_t *p = patchset->patches; p && p->name; ++p) {
        int found = 0;
        for (char **filtname = filter; filtname && *filtname; ++filtname) {
            if (!strcmp(p->name, *filtname)) {
                found = 1;
                break;
            }
        }
        if (!strcmp(p->name, "nogc")){
            if(!fopen("/ReiNX/nogc", "rb")) {
                fclose();
                continue;
            }
        }
        if (filter && !found) continue;

    if (filter && !found) continue;

    int r = kippatch_apply(kipdata, kipdata_len, p);
    if (r) return r;
  }
        int r = kippatch_apply(kipdata, kipdata_len, p);
        if (r) return r;
    }

  return 0;
    return 0;
}

kippatchset_t *kippatch_find_set(u8 *kiphash, kippatchset_t *patchsets) {
  for (kippatchset_t *ps = patchsets; ps && ps->kip_name; ++ps) {
    if (!memcmp(kiphash, ps->kip_hash, 0x10))
      return ps;
  }
  return NULL;
    for (kippatchset_t *ps = patchsets; ps && ps->kip_name; ++ps) {
        if (!memcmp(kiphash, ps->kip_hash, 0x10)) return ps;
    }
    return NULL;
}