int dhcp6_verify_mac(int param_1,uint param_2,undefined4 param_3,int param_4,int param_5,int param_6

                    )

{

  uint uVar1;

  uint uVar2;

  int iVar3;

  uint *__s;

  uint local_d0;

  uint local_cc;

  uint local_c8;

  uint local_c4;

  undefined1 auStack_c0 [16];

  undefined1 auStack_b0 [156];

  if ((param_4 == 1) && (__s = (uint *)(param_1 + param_5), param_5 + 0x10U <= param_2)) {

    uVar1 = (int)__s + 3U & 3;

    local_cc = __s[1];

    local_c8 = __s[2];

    local_c4 = __s[3];

    uVar2 = (uint)__s & 3;

    local_d0 = *(int *)(((int)__s + 3U) - uVar1) << (3 - uVar1) * 8 & -1 << (4 - uVar2) * 8 |

               *(uint *)((int)__s - uVar2) >> uVar2 * 8;

    memset(__s,0,0x10)   //possible issue identified - semgrep

    FUN_004191dc(auStack_b0,*(undefined4 *)(param_6 + 0x14),*(undefined4 *)(param_6 + 0x18));

    FUN_00418e08(auStack_b0,param_1,param_2);

    FUN_0041935c(auStack_b0,auStack_c0);

    iVar3 = memcmp(&local_d0,auStack_c0,0x10);

    *__s = local_d0;

    __s[1] = local_cc;

    __s[2] = local_c8;

    __s[3] = local_c4;

    return iVar3;

  }

  return -1;

}