/* xxtea_decrypt(unsigned char*, unsigned int, unsigned char*, unsigned int, unsigned int*) */

undefined8 xxtea_decrypt(uchar *param_1,uint param_2,uchar *param_3,uint param_4,uint *param_5)

{
  void *__dest;
  undefined8 uVar1;

  *param_5 = 0;
  if (param_4 < 0x10) {
    __dest = malloc(0x10);
    memcpy(__dest,param_3,(ulong)param_4);
    memset((void *)((long)__dest + (ulong)param_4),0,(ulong)(0x10 - param_4));
    uVar1 = FUN_009220dc(param_1,param_2,__dest,param_5);
    free(__dest);
    return uVar1;
  }
  uVar1 = FUN_009220dc(param_1,param_2,param_3,param_5);
  return uVar1;
}






void * FUN_009220dc(long param_1,uint param_2,long param_3,uint *param_4)

{
  byte *pbVar1;
  undefined *puVar2;
  uint uVar3;
  uint uVar4;
  uint uVar5;
  bool bVar6;
  uint *__s;
  undefined8 *__ptr;
  uint uVar7;
  uint uVar8;
  ulong uVar9;
  uint uVar10;
  long lVar11;
  ulong uVar12;
  ulong uVar13;
  void *pvVar14;

  uVar10 = param_2 >> 2;
  bVar6 = (param_2 & 3) != 0;
  uVar8 = uVar10;
  if (bVar6) {
    uVar8 = uVar10 + 1;
  }
  uVar5 = uVar8 * 4;
  __s = (uint *)malloc((ulong)uVar5);
  memset(__s,0,(ulong)uVar5);
  if (param_2 != 0) {
    uVar7 = 0;
    uVar9 = 0;
    do {
      uVar12 = uVar9 >> 2 & 0x3fffffff;
      pbVar1 = (byte *)(param_1 + uVar9);
      uVar3 = uVar7 & 0x18;
      uVar9 = uVar9 + 1;
      uVar7 = uVar7 + 8;
      __s[uVar12] = (uint)*pbVar1 << (ulong)uVar3 | __s[uVar12];
    } while (param_2 != uVar9);
  }
  __ptr = (undefined8 *)malloc(0x10);
  uVar7 = 0;
  uVar9 = 0;
  *__ptr = 0;
  __ptr[1] = 0;
  do {
    pbVar1 = (byte *)(param_3 + uVar9);
    lVar11 = (uVar9 >> 2 & 0x3fffffff) * 4;
    uVar3 = uVar7 & 0x18;
    uVar9 = uVar9 + 1;
    uVar7 = uVar7 + 8;
    *(uint *)((long)__ptr + lVar11) =
         (uint)*pbVar1 << (ulong)uVar3 | *(uint *)((long)__ptr + lVar11);
  } while (uVar9 != 0x10);
  uVar9 = (ulong)(uVar8 - 1);
  if (uVar8 - 1 != 0) {
    uVar7 = 0;
    if (uVar8 != 0) {
      uVar7 = 0x34 / uVar8;
    }
    uVar8 = uVar7 * -0x61c88647 + 0xb54cda56;
    if (uVar8 != 0) {
      uVar7 = *__s;
      do {
        uVar3 = uVar8 >> 2 & 3;
        lVar11 = (ulong)((uVar10 + bVar6) - 2) << 2;
        uVar12 = uVar9;
        do {
          uVar4 = *(uint *)((long)__s + lVar11);
          uVar13 = uVar12 - 1;
          uVar7 = __s[uVar12] -
                  ((uVar4 >> 5 ^ uVar7 << 2) + (uVar4 << 4 ^ uVar7 >> 3) ^
                  (*(uint *)((long)__ptr + (ulong)((uint)uVar12 & 3 ^ uVar3) * 4) ^ uVar4) +
                  (uVar7 ^ uVar8));
          lVar11 = lVar11 + -4;
          __s[uVar12] = uVar7;
          uVar12 = uVar13;
        } while ((int)uVar13 != 0);
        uVar4 = __s[uVar9];
        uVar7 = *__s - ((uVar4 >> 5 ^ uVar7 * 4) + (uVar4 << 4 ^ uVar7 >> 3) ^
                       (*(uint *)((long)__ptr + (ulong)uVar3 * 4) ^ uVar4) + (uVar7 ^ uVar8));
        uVar8 = uVar8 + 0x61c88647;
        *__s = uVar7;
      } while (uVar8 != 0);
    }
  }
  uVar8 = __s[uVar9];
  uVar9 = (ulong)uVar8;
  pvVar14 = (void *)0x0;
  if ((uVar8 < uVar5 - 7) || (uVar5 - 4 < uVar8)) goto LAB_00922360;
  pvVar14 = malloc((ulong)(uVar8 + 1));
  if (uVar8 == 0) {
    uVar9 = 0;
  }
  else {
    if (uVar8 == 1) {
      uVar12 = 0;
    }
    else {
      uVar12 = uVar9 - (uVar8 & 1);
      if (uVar12 != 0) {
        uVar10 = 0;
        uVar13 = 0;
        do {
          uVar7 = __s[uVar13 >> 2 & 0x3fffffff];
          uVar5 = uVar10 & 0x10;
          puVar2 = (undefined *)((long)pvVar14 + uVar13);
          uVar13 = uVar13 + 2;
          uVar10 = uVar10 + 0x10;
          *puVar2 = (char)(uVar7 >> (ulong)uVar5);
          puVar2[1] = (char)(uVar7 >> (ulong)(uVar5 | 8));
        } while (uVar12 != uVar13);
        if ((uVar8 & 1) == 0) goto LAB_00922358;
      }
    }
    uVar10 = (int)uVar12 << 3;
    do {
      uVar5 = uVar10 & 0x18;
      uVar10 = uVar10 + 8;
      *(char *)((long)pvVar14 + uVar12) = (char)(__s[uVar12 >> 2 & 0x3fffffff] >> (ulong)uVar5);
      uVar12 = uVar12 + 1;
    } while (uVar9 != uVar12);
  }
LAB_00922358:
  *(undefined *)((long)pvVar14 + uVar9) = 0;
  *param_4 = uVar8;
LAB_00922360:
  free(__s);
  free(__ptr);
  return pvVar14;
}