/* WARNING: Type propagation algorithm not settling */

void FUN_00403fe8(int param_1,undefined4 param_2,undefined4 param_3,undefined1 *param_4,

                 ushort param_5)

{

  byte bVar1;

  ushort uVar2;

  int iVar3;

  char *pcVar4;

  byte *pbVar5;

  undefined4 uVar6;

  byte *pbVar7;

  byte *pbVar8;

  uint uVar9;

  int iVar10;

  byte *pbVar11;

  int iVar12;

  byte *pbVar13;

  int local_b0 [5];

  char acStack_9c [48];

  undefined1 auStack_6c [52];

  byte *local_38;

  char *local_34;

  int *local_30;

  int *local_2c;

  local_b0[0] = 0;

  pbVar13 = (byte *)(uint)param_5;

  pbVar11 = (byte *)((*(ushort *)(param_4 + 6) & 0xff) << 8 | (uint)(*(ushort *)(param_4 + 6) >> 8))

  ;

  int_set_mld_version(param_1,2);

  dolog(7,"Received a ICMPv6 MLDv2 Report (%u) on %s (grec\'s: %u)\n",*param_4,(byte *)(param_1 + 4)

        ,pbVar11);

  local_34 = acStack_9c;

  if (pbVar13 < (byte *)((int)pbVar11 * 0x14 + 8)) {

    dolog(3,"Ignoring packet with invalid number of Group Records (would exceed packetlength)\n");

  }

  else {

    memset(local_34,0,0x2e)   //possible issue identified - semgrep

    memset(auStack_6c,0,0x2e)   //possible issue identified - semgrep

    local_2c = local_b0 + 1;

    local_b0[2] = 0;

    local_b0[3] = 0;

    local_b0[4] = 0;

    pbVar8 = param_4 + 8;

    local_38 = param_4 + (int)pbVar13;

    local_30 = local_b0;

    local_b0[1] = 0;

    for (; pbVar11 != (byte *)0x0; pbVar11 = pbVar11 + -1) {

      if (local_38 < pbVar8) {

        pcVar4 = "Reached outside the packet (ngrec=%u) received on %s, length %u -> ignoring\n";

        pbVar5 = pbVar11;

        pbVar8 = (byte *)(param_1 + 4);

        pbVar11 = pbVar13;

LAB_0040418c:

        dolog(3,pcVar4,pbVar5,pbVar8,pbVar11);

        return;

      }

      pbVar5 = (byte *)(uint)*pbVar8;

      uVar2 = *(ushort *)(pbVar8 + 2);

      if (5 < ((uint)(pbVar5 + -1) & 0xff)) {

        pcVar4 = "Unknown Group Record Type %u/0x%x (ngrec=%u) on %s -> Ignoring Report\n";

        pbVar8 = pbVar5;

        goto LAB_0040418c;

      }

      if ((pbVar8[4] != 0xff) || (iVar10 = 0, 1 < (pbVar8[5] & 0xf) - 1)) {

        pbVar5 = pbVar8 + 4;

        inet_ntop(10,pbVar5,local_34,0x2e)   //possible issue identified - semgrep

        iVar10 = groupint_get(pbVar5,param_1,local_30);

        if (iVar10 == 0) {

          FUN_00401448(4,

                       "L4:IPv6:ICMPv6:MLD2_Report Couldn\'t find or create new group for %s on %s/%u\n"

                       ,pbVar5,param_1);

        }

      }

      uVar9 = (uVar2 & 0xff) << 8 | (uint)(uVar2 >> 8);

      pbVar5 = pbVar8 + 0x14;

      if (uVar9 == 0) {

        if (iVar10 != 0) {

          bVar1 = *pbVar8;

          if (((bVar1 == 2) || (bVar1 == 4)) || (uVar6 = 2, bVar1 == 6)) {

            uVar6 = 1;

          }

          iVar10 = grpint_refresh(iVar10,local_2c,uVar6);

          if (iVar10 == 0) {

            FUN_00401448(4,"Couldn\'t refresh subscription to %s for %s/%u\n",pbVar8 + 4,param_1);

            return;

          }

        }

      }

      else {

        iVar12 = uVar9 * 0x10;

        pbVar7 = pbVar5;

        if (pbVar13 < pbVar5 + (iVar12 - (int)param_4)) {

          dolog(3,

                "Ignoring packet with invalid number (%u) of sources (would exceed packetlength)\n",

                uVar9);

          return;

        }

        do {

          uVar9 = uVar9 - 1;

          if (iVar10 != 0) {

            bVar1 = *pbVar8;

            uVar6 = 1;

            if (((bVar1 == 2) || (bVar1 == 4)) || (bVar1 == 6)) {

              uVar6 = 2;

            }

            iVar3 = grpint_refresh(iVar10,pbVar7,uVar6);

            if (iVar3 == 0) {

              FUN_00401448(3,"Couldn\'t subscribe sourced from %s on %s/%u\n",pbVar7,param_1);

            }

          }

          pbVar7 = pbVar7 + 0x10;

        } while (uVar9 != 0);

        pbVar5 = pbVar5 + iVar12;

      }

      if (local_b0[0] != 0) {

        FUN_00403ef4(param_1,pbVar8 + 4);

      }

      pbVar8 = pbVar5 + pbVar8[1];

    }

  }

  return;

}