void FUN_00402b0c(int param_1,char *param_2,void *param_3,uint param_4)

{

  int *piVar1;

  ssize_t sVar2;

  char *pcVar3;

  uint uVar4;

  int iVar5;

  uint uVar6;

  uint uVar7;

  uint uVar8;

  int iVar9;

  undefined4 uVar10;

  char *pcVar11;

  sockaddr local_40;

  uint local_30;

  local_40.sa_data[0xc] = *(char *)((int)param_3 + 0x24);

  local_40.sa_data[0xd] = *(char *)((int)param_3 + 0x25);

  local_40.sa_data._6_2_ = *(undefined2 *)(param_2 + 0x24);

  local_40.sa_data._2_4_ = *(undefined4 *)param_2;

  local_40.sa_family = 0x11;

  local_40.sa_data[0] = -0x7a;

  local_40.sa_data[1] = -0x23;

  local_40.sa_data[0xb] = '3';

  local_30 = (uint)*(ushort *)((int)param_3 + 0x26);

  local_40.sa_data[10] = '3';

  local_40.sa_data[9] = '\x06';

  local_40.sa_data[8] = '\0';

  param_4 = param_4 & 0xffff;

  piVar1 = __errno_location();

  iVar5 = g_conf;

  *piVar1 = 0;

  sVar2 = sendto(*(int *)(iVar5 + 0x40),param_3,param_4,0,&local_40,0x14);

  iVar5 = g_conf;

  if (sVar2 < 0) {

    iVar5 = *piVar1;

    if (iVar5 == 6) {

      dolog(7,"[%-5s] couldn\'t send %u bytes, received ENXIO, destroying interface %u\n",

            param_2 + 4,param_4,*(undefined4 *)param_2);

      int_destroy(param_2);

    }

    else {

      pcVar11 = param_2 + 4;

      uVar10 = *(undefined4 *)(param_2 + 0x18);

      if (iVar5 == 0x61) {

        pcVar3 = strerror(0x61);

        dolog(7,"[%-5s] sending %u bytes failed, mtu = %u: %s (%d)\n",pcVar11,param_4,uVar10,pcVar3,

              *piVar1);

        DAT_0041a424 = 0;

        FUN_00402080(param_2,1);

        dolog(7,"[%-5s] after force update interface, now mtu = %u\n",pcVar11,

              *(undefined4 *)(param_2 + 0x18));

        if (param_1 != 0) {

          if ((((*(int *)(param_1 + 0x44) == 0) && (*(int *)(param_1 + 0x48) == 0)) &&

              (*(int *)(param_1 + 0x4c) == 0)) && (*(int *)(param_1 + 0x50) == 0)) {

            dolog(7,

                  "[%-5s] prepare send ICMPv6 Packet Too Big with src is unspecified ... abrogating this action!!\n"

                  ,pcVar11);

          }

          else if ((*(char *)((int)param_3 + 6) == ':') && (*(char *)((int)param_3 + 0x28) == -0x80)

                  ) {

            FUN_00402710(param_1,(int)param_3 + 8,2,0,param_3,param_4,

                         *(undefined4 *)(param_2 + 0x18));

          }

        }

      }

      else {

        pcVar3 = strerror(iVar5);

        dolog(7,"[%-5s] sending %u bytes failed, mtu = %u: %s (%d)\n",pcVar11,param_4,uVar10,pcVar3,

              *piVar1);

      }

    }

  }

  else {

    uVar6 = *(uint *)(g_conf + 0x58);

    uVar4 = *(uint *)(g_conf + 0x68);

    iVar9 = *(int *)(g_conf + 0x5c);

    piVar1 = (int *)(g_conf + 0x6c);

    uVar7 = uVar6 + 1;

    uVar8 = uVar4 + param_4;

    *(uint *)(g_conf + 0x68) = uVar8;

    *(uint *)(iVar5 + 0x6c) = (uint)(uVar8 < uVar4) + *piVar1;

    *(uint *)(iVar5 + 0x58) = uVar7;

    *(uint *)(iVar5 + 0x5c) = (uint)(uVar7 < uVar6) + iVar9;

    uVar4 = *(uint *)(param_2 + 0x70);

    param_4 = uVar4 + param_4;

    uVar6 = *(uint *)(param_2 + 0x60) + 1;

    *(uint *)(param_2 + 100) = (uint)(uVar6 < *(uint *)(param_2 + 0x60)) + *(int *)(param_2 + 100);

    *(uint *)(param_2 + 0x70) = param_4;

    *(uint *)(param_2 + 0x74) = (uint)(param_4 < uVar4) + *(int *)(param_2 + 0x74);

    *(uint *)(param_2 + 0x60) = uVar6;

  }

  return;

}