undefined4 * dhcp6_add_listval(int param_1,undefined4 param_2,undefined4 *param_3,int param_4)

{

  undefined4 *__ptr;

  int iVar1;

  undefined4 *puVar2;

  undefined4 uVar3;

  undefined4 uVar4;

  undefined4 uVar5;

  undefined4 uVar6;

  undefined4 uVar7;

  undefined4 uVar8;

  __ptr = (undefined4 *)malloc(0x30)   //possible issue identified - semgrep

  if (__ptr == (undefined4 *)0x0) {

    dprintf(3,"dhcp6_add_listval","failed to allocate memory for list entry");

    return (undefined4 *)0x0;

  }

  *__ptr = 0;

  __ptr[1] = 0;

  __ptr[3] = 0;

  __ptr[4] = 0;

  __ptr[5] = 0;

  __ptr[6] = 0;

  __ptr[7] = 0;

  __ptr[8] = 0;

  __ptr[9] = 0;

  __ptr[2] = param_2;

  __ptr[10] = 0;

  __ptr[0xb] = __ptr + 10;

  switch(param_2) {

  default:

    dprintf(3,"dhcp6_add_listval","unexpected list value type (%d)",param_2);

    goto LAB_0040cb84;

  case 1:

    __ptr[3] = *param_3;

    break;

  case 2:

    *(undefined2 *)(__ptr + 3) = *(undefined2 *)param_3;

    break;

  case 3:

    uVar5 = param_3[3];

    uVar3 = param_3[1];

    uVar4 = param_3[2];

    __ptr[3] = *param_3;

    __ptr[4] = uVar3;

    __ptr[5] = uVar4;

    __ptr[6] = uVar5;

    break;

  case 4:

  case 6:

    uVar3 = param_3[2];

    uVar4 = param_3[1];

    __ptr[3] = *param_3;

    __ptr[4] = uVar4;

    __ptr[5] = uVar3;

    break;

  case 5:

    uVar8 = param_3[6];

    uVar3 = param_3[1];

    uVar4 = param_3[2];

    uVar5 = param_3[3];

    uVar6 = param_3[4];

    uVar7 = param_3[5];

    __ptr[3] = *param_3;

    __ptr[4] = uVar3;

    __ptr[5] = uVar4;

    __ptr[6] = uVar5;

    __ptr[7] = uVar6;

    __ptr[8] = uVar7;

    __ptr[9] = uVar8;

    break;

  case 7:

    uVar7 = param_3[5];

    uVar3 = param_3[1];

    uVar4 = param_3[2];

    uVar5 = param_3[3];

    uVar6 = param_3[4];

    __ptr[3] = *param_3;

    __ptr[4] = uVar3;

    __ptr[5] = uVar4;

    __ptr[6] = uVar5;

    __ptr[7] = uVar6;

    __ptr[8] = uVar7;

    break;

  case 8:

    iVar1 = dhcp6_vbuf_copy(__ptr + 3,param_3);

    if (iVar1 == 0) break;

    goto LAB_0040cb84;

  }

  if ((param_4 == 0) || (iVar1 = dhcp6_copy_list(__ptr + 10,param_4), iVar1 == 0)) {

    puVar2 = *(undefined4 **)(param_1 + 4);

    *__ptr = 0;

    __ptr[1] = puVar2;

    *puVar2 = __ptr;

    *(undefined4 **)(param_1 + 4) = __ptr;

  }

  else {

LAB_0040cb84:

    free(__ptr);

    __ptr = (undefined4 *)0x0;

  }

  return __ptr;

}