Function FindBin

rEFIt_UEFI/Platform/FixBiosDsdt.cpp:1332–1350

the procedure can find BIN array UNSIGNED CHAR8 sizeof N inside part of large array "dsdt" size of len return position or -1 if not found

//the procedure can find BIN array UNSIGNED CHAR8 sizeof N inside part of large array "dsdt" size of len
// return position or -1 if not found
INT32 FindBin (UINT8 *dsdt, UINT32 len, const UINT8* bin, UINT32 N)
{
  UINT32 i, j;
  BOOLEAN eq;

  for (i=0; len >= N && i < len - N; i++) {
    eq = TRUE;
    for (j=0; j<N; j++) {
      if (dsdt[i+j] != bin[j]) {
        eq = FALSE;
        break;
      }
    }
    if (eq) {
      return (INT32)i; // TODO that is an usafe cast !!!
    }
  }
  return -1;
}
INT32 FindBin (UINT8 *dsdt, size_t len, const XBuffer<UINT8>& bin) {
  if ( len > MAX_INT32 ) panic("FindBin : len > MAX_INT32"); // check against INT32, even though parameter of FindBin is UINT32. Because return value is INT32, parameter should not be > MAX_INT32
  if ( bin.size() > MAX_INT32 ) panic("FindBin : bin.size() > MAX_INT32");