/* DBCServer_Release_x64.exe sha256 d9e4fccdf3482e50247686d4452c0b13c75a53efc4bd7320668eece8d1ce828c
 * Ghidra 12.1.2 decompiler output for 0x14020df70 FUN_14020df70
 * Pseudocode, not original source. */

undefined8 FUN_14020df70(byte *param_1,uint param_2,longlong param_3,uint *param_4)

{
  byte bVar1;
  uint uVar2;
  uint uVar3;
  uint uVar4;
  byte *pbVar5;
  uint uVar6;
  
  if ((((param_1 == (byte *)0x0) || (param_3 == 0)) || (param_4 == (uint *)0x0)) || (param_2 < 4)) {
    return 0x10;
  }
  if ((*param_1 & 0x1f) == 3) {
    bVar1 = param_1[1];
    uVar4 = 0;
    if ((char)bVar1 < '\0') {
      uVar2 = bVar1 & 0x7f;
      if ((bVar1 & 0x7f) == 0) {
        return 7;
      }
      if (2 < uVar2) {
        return 7;
      }
      uVar3 = 0;
      pbVar5 = param_1 + 2;
      uVar6 = uVar2 + 2;
      do {
        bVar1 = *pbVar5;
        pbVar5 = pbVar5 + 1;
        uVar3 = uVar3 << 8 | (uint)bVar1;
        uVar2 = uVar2 - 1;
      } while (uVar2 != 0);
    }
    else {
      uVar6 = 2;
      uVar3 = bVar1 & 0x7f;
    }
    if ((uVar3 != 0) && (uVar3 + uVar6 <= param_2)) {
      uVar3 = (uVar3 * 8 + -8) - (param_1[uVar6] & 7);
      if (*param_4 < uVar3) {
        *param_4 = uVar3;
        return 6;
      }
      if (uVar3 != 0) {
        param_1 = param_1 + (int)(uVar6 + 1);
        do {
          *(bool *)param_3 = (*param_1 & (byte)(1 << (7U - (char)(uVar4 & 7) & 0x1f))) != 0;
          if ((uVar4 & 7) == 7) {
            param_1 = param_1 + 1;
          }
          uVar4 = uVar4 + 1;
          param_3 = param_3 + 1;
        } while (uVar4 < uVar3);
      }
      *param_4 = uVar3;
      return 0;
    }
  }
  return 7;
}