DecodeICE

/* DecodeICE(unsigned char*, int, unsigned char const*) */

void DecodeICE(uchar *param_1,int param_2,uchar *param_3)

{
  int iVar1;
  uint uVar2;
  IceKey *pIVar3;
  int iVar4;
  int in_GS_OFFSET;
  int iStackY_50;
  uint local_40;
  uint local_3c;
  uchar *local_38;
  int local_34;
  uchar *local_30;
  IceKey local_2c [12];
  int local_20;
  
  pIVar3 = (IceKey *)&stack0xffffffb4;
  local_38 = param_1;
  local_20 = *(int *)(in_GS_OFFSET + 0x14);
  if (param_3 != (uchar *)0x0) {
    iStackY_50 = 0x270eca;
    IceKey::IceKey(local_2c,0);
    iStackY_50 = 0x270ed6;
    IceKey::set(local_2c,param_3);
    uVar2 = param_2 + 7U;
    if ((int)(param_2 + 7U) < 0) {
      uVar2 = param_2 + 0xe;
    }
    iVar1 = -(((uVar2 & 0xfffffff8) + 0xf & 0xfffffff0) + 0x10);
    pIVar3 = local_2c + iVar1 + -0x20;
    iVar4 = (int)&local_40 + iVar1;
    local_34 = iVar4;
    if (param_2 < 8) {
      iVar4 = 0;
    }
    else {
      local_40 = param_2 - 8U;
      local_3c = param_2 - 8U >> 3;
      local_30 = param_1 + local_3c * 8 + 8;
      do {
        *(int *)(&stack0xffffffbc + iVar1) = iVar4;
        iVar4 = iVar4 + 8;
        *(uchar **)(local_2c + iVar1 + -0x1c) = param_1;
        param_1 = param_1 + 8;
        *(IceKey **)(local_2c + iVar1 + -0x20) = local_2c;
        *(undefined4 *)((int)&iStackY_50 + iVar1) = 0x270f36;
        IceKey::decrypt(*(IceKey **)(local_2c + iVar1 + -0x20),*(uchar **)(local_2c + iVar1 + -0x1c)
                        ,*(uchar **)(&stack0xffffffbc + iVar1));
      } while (param_1 != local_30);
      iVar4 = param_2 - (local_40 + local_3c * -8);
    }
    *(int *)(&stack0xffffffbc + iVar1) = iVar4;
    *(int *)(local_2c + iVar1 + -0x1c) = local_34;
    *(uchar **)(local_2c + iVar1 + -0x20) = local_38;
                    /* try { // try from 00270f5e to 00270f62 has its CatchHandler @ 00270f88 */
    *(undefined4 *)((int)&iStackY_50 + iVar1) = 0x270f63;
    _V_memcpy(*(void **)(local_2c + iVar1 + -0x20),*(void **)(local_2c + iVar1 + -0x1c),
              *(int *)(&stack0xffffffbc + iVar1));
    *(IceKey **)(local_2c + iVar1 + -0x20) = local_2c;
    *(undefined4 *)((int)&iStackY_50 + iVar1) = 0x270f6b;
    IceKey::~IceKey(*(IceKey **)(local_2c + iVar1 + -0x20));
  }
  if (local_20 == *(int *)(in_GS_OFFSET + 0x14)) {
    return;
  }
                    /* WARNING: Subroutine does not return */
  *(undefined1 **)(pIVar3 + -4) = &LAB_00270f88;
  __stack_chk_fail();
}