Function archive_fixpath

libctru/source/archive_dev.c:138–221

}

static const char*
archive_fixpath(struct _reent    *r,
                const char       *path,
                archive_fsdevice **device)
{
  ssize_t       units;
  uint32_t      code;
  const uint8_t *p = (const uint8_t*)path;
  const char *device_path = path;

  // Move the path pointer to the start of the actual path
  do
  {
    units = decode_utf8(&code, p);
    if(units < 0)
    {
      r->_errno = EILSEQ;
      return NULL;
    }

    p += units;
  } while(code != ':' && code != 0);

  // We found a colon; p points to the actual path
  if(code == ':')
    path = (const char*)p;

  // Make sure there are no more colons and that the
  // remainder of the filename is valid UTF-8
  p = (const uint8_t*)path;
  do
  {
    units = decode_utf8(&code, p);
    if(units < 0)
    {
      r->_errno = EILSEQ;
      return NULL;
    }

    if(code == ':')
    {
      r->_errno = EINVAL;
      return NULL;
    }

    p += units;
  } while(code != 0);

  archive_fsdevice *dev = NULL;
  if(device != NULL && *device != NULL)
    dev = *device;
  else if(path != device_path)
    dev = archiveFindDevice(device_path);
  else if(archive_device_cwd != -1)
    dev = &archive_devices[archive_device_cwd];
  if(dev == NULL)
  {
    r->_errno = ENODEV;