undefined4 NEAP_ListenAdapter(uint *param_1,undefined4 param_2,code *param_3,undefined4 param_4)

{

  char cVar1;

  undefined1 uVar2;

  int iVar3;

  uint uVar4;

  undefined4 uVar5;

  uint uVar6;

  char *pcVar7;

  __fd_mask *p_Var8;

  __fd_mask *p_Var9;

  socklen_t local_1098;

  undefined1 auStack_1094 [16];

  undefined1 auStack_1084 [16];

  sockaddr sStack_1074;

  fd_set local_1064;

  uint auStack_fe4 [3];

  undefined1 auStack_fd8 [16];

  undefined1 auStack_fc8 [3976];

  undefined1 *local_40;

  undefined1 *local_3c;

  fd_set *local_38;

  sockaddr *local_34;

  socklen_t *local_30;

  p_Var9 = local_1064.fds_bits;

  if (param_3 == (code *)0x0) {

    return 0;

  }

  do {

    p_Var8 = p_Var9;

    *p_Var8 = 0;

    p_Var9 = p_Var8 + 1;

    local_30 = &local_1098;

  } while ((uint *)p_Var9 != auStack_fe4);

  uVar6 = *param_1 >> 5;

  local_1064.fds_bits[uVar6] = local_1064.fds_bits[uVar6] | 1 << (*param_1 & 0x1f);

  local_1098 = 0x10;

  local_3c = auStack_fc8;

  local_40 = auStack_fd8;

  local_38 = &local_1064;

  local_34 = &sStack_1074;

LAB_00403974:

  do {

    do {

      do {

        iVar3 = select(*param_1 + 1,local_38,(fd_set *)0x0,(fd_set *)0x0,(timeval *)0x0);

      } while (iVar3 < 1);

      uVar6 = recvfrom(*param_1,auStack_fe4,4000,0,local_34,local_30)   //possible issue identified - semgrep

    } while (((((int)uVar6 < 0) ||

              (uVar4 = *p_Var9,

              (uVar4 << 0x18 | uVar4 >> 0x18 | (uVar4 & 0xff0000) >> 8 | (uVar4 & 0xff00) << 8) !=

              0x92b1338)) || (*(char *)((int)p_Var8 + 0x26) != '\x02')) ||

            (((*(ushort *)((int)p_Var8 + 10) & 0xff) << 8 |

             (uint)(*(ushort *)((int)p_Var8 + 10) >> 8)) != uVar6));

    cVar1 = (char)p_Var8[2]   //possible issue identified - semgrep

    if ((cVar1 != '\x03') && (cVar1 != '\x05')) goto LAB_00403a7c;

    iVar3 = memcmp(local_3c,param_1 + 4,6);

  } while ((iVar3 != 0) ||

          (((cVar1 == '\x03' || (cVar1 == '\x05')) && ((*(byte *)((int)p_Var8 + 0xe) & 0x70) == 0)))

          );

  goto LAB_00403ab0;

LAB_00403a7c:

  if (cVar1 == '\x01') {

LAB_00403ab0:

    if ((*(byte *)((int)p_Var8 + 0xe) & 0x70) == 0x10) {

      memcpy(auStack_1084,local_40,0x10)   //possible issue identified - semgrep

      memset(local_40,0,0x10)   //possible issue identified - semgrep

      pcVar7 = (char *)param_1[6];

      if ((pcVar7 == (char *)0x0) || (uVar4 = param_1[7], (int)uVar4 < 1)) {

        pcVar7 = "";

        uVar4 = 0;

      }

      hmac_md5(auStack_fe4,uVar6,pcVar7,uVar4,auStack_1094);

      iVar3 = memcmp(auStack_1094,auStack_1084,0x10);

      if (iVar3 != 0) goto LAB_00403974;

    }

    uVar2 = *(undefined1 *)((int)p_Var8 + 0x26);

    *(ushort *)(param_1 + 1) =

         sStack_1074.sa_data._0_2_ << 8 | (ushort)sStack_1074.sa_data._0_2_ >> 8;

    uVar5 = FUN_00402c14(uVar2,0);

    iVar3 = FUN_00403270(uVar5,auStack_fe4,uVar6);

    if (iVar3 == 0) {

      (*param_3)(param_1,param_4,(char)p_Var8[2],uVar5);

    }

    FUN_00402aa8(uVar5);

  }

  goto LAB_00403974;

}