/* MessageServer_Release_x64.exe sha256 7911b15c4379625eaa12ff227708aa3a033bc6ac2cf6b34283136e3a62df25f1
 * Ghidra 12.1.2 decompiler output for 0x1400dcb60 FUN_1400dcb60
 * Pseudocode, not original source. */

/* WARNING: Function: __security_check_cookie replaced with injection: security_check_cookie */
/* WARNING: Removing unreachable block (ram,0x0001400dcc0c) */

void FUN_1400dcb60(longlong param_1,byte *param_2,int param_3)

{
  byte bVar1;
  byte bVar2;
  byte bVar3;
  uint uVar4;
  void *pvVar5;
  longlong lVar6;
  void *pvVar7;
  undefined1 auStack_138 [32];
  byte local_118 [256];
  ulonglong local_18;
  
  local_18 = DAT_1401ac5a0 ^ (ulonglong)auStack_138;
  pvVar7 = (void *)0x0;
  lVar6 = (longlong)param_3;
  pvVar5 = pvVar7;
  if (*(int *)(param_1 + 0x18) != 0) {
    pvVar5 = *(void **)(param_1 + 0x10);
  }
  memcpy(local_118,pvVar5,0x100);
  pvVar5 = pvVar7;
  if (0 < param_3) {
    do {
      uVar4 = (int)pvVar7 + 1U & 0x800000ff;
      if ((int)uVar4 < 0) {
        uVar4 = (uVar4 - 1 | 0xffffff00) + 1;
      }
      pvVar7 = (void *)(longlong)(int)uVar4;
      bVar1 = local_118[(longlong)pvVar7];
      uVar4 = (int)pvVar5 + (uint)bVar1 & 0x800000ff;
      if ((int)uVar4 < 0) {
        uVar4 = (uVar4 - 1 | 0xffffff00) + 1;
      }
      pvVar5 = (void *)(ulonglong)uVar4;
      bVar2 = local_118[(longlong)pvVar7];
      bVar3 = local_118[(int)uVar4];
      local_118[(longlong)pvVar7] = local_118[(int)uVar4];
      local_118[(int)uVar4] = bVar2;
      *param_2 = *param_2 ^ local_118[(int)((uint)bVar3 + (uint)bVar1 & 0x800000ff)];
      lVar6 = lVar6 + -1;
      param_2 = param_2 + 1;
    } while (lVar6 != 0);
  }
  return;
}