undefined4

FUN_0040b9dc(uint param_1,uint param_2,void *param_3,int *param_4,int param_5,int *param_6)

{

  int iVar1;

  undefined4 uVar2;

  undefined4 *puVar3;

  uint uVar4;

  undefined4 local_28;

  param_2 = param_2 & 0xffff;

  uVar4 = param_2 + 4;

  puVar3 = (undefined4 *)*param_4;

  param_1 = param_1 & 0xffff;

  if ((uint)(param_5 - (int)param_4) < uVar4) {

    uVar2 = dhcp6optstr(param_1);

    dprintf(6,"copy_option","option buffer short for %s",uVar2);

    uVar2 = 0xffffffff;

  }

  else {

    local_28 = CONCAT22((ushort)(param_2 << 8) | (ushort)(param_2 >> 8),

                        (ushort)(param_1 << 8) | (ushort)(param_1 >> 8));

    *puVar3 = local_28;

    if (param_2 != 0) {

      memcpy(puVar3 + 1,param_3,param_2)   //possible issue identified - semgrep

    }

    iVar1 = *param_6;

    *param_4 = (int)puVar3 + uVar4;

    *param_6 = iVar1 + uVar4;

    uVar2 = dhcp6optstr(param_1);

    dprintf(7,"copy_option","set %s (len %d)",uVar2,param_2);

    uVar2 = 0;

  }

  return uVar2;

}