/* MessageServer_Release_x64.exe sha256 7911b15c4379625eaa12ff227708aa3a033bc6ac2cf6b34283136e3a62df25f1
 * Ghidra 12.1.2 decompiler output for 0x1400dccc0 FUN_1400dccc0
 * Pseudocode, not original source. */

/* WARNING: Function: __security_check_cookie replaced with injection: security_check_cookie */

void FUN_1400dccc0(ulonglong param_1,longlong param_2,SIZE_T param_3,undefined8 param_4)

{
  byte bVar1;
  uint uVar2;
  longlong lVar3;
  uint uVar4;
  ulonglong uVar5;
  int iVar6;
  ulonglong uVar7;
  ulonglong uVar8;
  int iVar9;
  ulonglong uVar10;
  ulonglong uVar11;
  undefined1 auStack_198 [32];
  exception local_178 [80];
  byte abStack_128 [256];
  ulonglong local_28;
  
  local_28 = DAT_1401ac5a0 ^ (ulonglong)auStack_198;
  iVar9 = (int)param_3;
  if (iVar9 == 0) {
    *(undefined1 *)(param_1 + 0x28) = 1;
  }
  else {
    if (param_2 == 0) {
      FUN_14006ba50(local_178,L"RC4 ExpandFrom Error. inputkey is NULL",param_3,param_4);
                    /* WARNING: Subroutine does not return */
      _CxxThrowException(local_178,(ThrowInfo *)&DAT_1401a93e8);
    }
    uVar7 = param_3 & 0xffffffff;
    uVar5 = param_1;
    FUN_1400146f0(param_1,iVar9,param_3);
    uVar8 = 0;
    uVar10 = uVar8;
    if (0 < iVar9) {
      do {
        iVar6 = (int)uVar10;
        if ((iVar6 < 0) || (*(int *)(param_1 + 0x18) <= iVar6)) {
                    /* WARNING: Subroutine does not return */
          FUN_14006be30(uVar5,uVar7,param_3,uVar10);
        }
        param_3 = (SIZE_T)iVar6;
        *(char *)(param_3 + *(longlong *)(param_1 + 0x10)) = (char)uVar10;
        uVar10 = (ulonglong)(iVar6 + 1U);
        uVar7 = (longlong)iVar6 % (longlong)iVar9 & 0xffffffff;
        bVar1 = *(byte *)((int)((longlong)iVar6 % (longlong)iVar9) + param_2);
        uVar5 = (ulonglong)bVar1;
        abStack_128[param_3] = bVar1;
      } while ((int)(iVar6 + 1U) < iVar9);
    }
    uVar10 = uVar8;
    uVar11 = uVar8;
    if (0 < iVar9) {
      do {
        if ((longlong)uVar10 < 0) {
LAB_1400dce02:
                    /* WARNING: Subroutine does not return */
          FUN_14006be30(uVar5,uVar7,param_3,uVar10);
        }
        uVar2 = *(uint *)(param_1 + 0x18);
        param_3 = (SIZE_T)uVar2;
        if ((int)uVar2 <= (int)uVar11) goto LAB_1400dce02;
        lVar3 = *(longlong *)(param_1 + 0x10);
        uVar4 = (uint)abStack_128[uVar10] + (int)uVar8;
        uVar5 = (longlong)(int)(*(byte *)(lVar3 + uVar10) + uVar4) % (longlong)iVar9;
        uVar8 = uVar5 & 0xffffffff;
        uVar5 = (longlong)((ulonglong)(uint)((int)uVar5 >> 0x1f) << 0x20 | uVar5 & 0xffffffff) %
                (longlong)iVar9;
        uVar7 = uVar5 & 0xffffffff;
        iVar6 = (int)uVar5;
        if ((iVar6 < 0) || ((int)uVar2 <= iVar6)) {
                    /* WARNING: Subroutine does not return */
          FUN_14006be30((ulonglong)uVar4,uVar7,param_3,uVar10);
        }
        bVar1 = *(byte *)(lVar3 + uVar10);
        uVar5 = (ulonglong)bVar1;
        param_3 = (SIZE_T)iVar6;
        uVar10 = uVar10 + 1;
        uVar11 = (ulonglong)((int)uVar11 + 1);
        *(undefined1 *)(lVar3 + -1 + uVar10) = *(undefined1 *)(param_3 + lVar3);
        *(byte *)(param_3 + lVar3) = bVar1;
      } while ((longlong)uVar10 < (longlong)iVar9);
    }
    *(undefined1 *)(param_1 + 0x28) = 1;
  }
  return;
}