uint FUN_0041bd1c(int param_1)

{

  time_t tVar1;

  uint uVar2;

  uint uVar3;

  int *piVar4;

  uint uVar5;

  tVar1 = time((time_t *)0x0);

  piVar4 = *(int **)(param_1 + 0x24);

  if (piVar4 == (int *)0x0) {

    uVar3 = 0xffffffff;

  }

  else {

    uVar5 = 0xffffffff;

    do {

      while( true ) {

        uVar2 = tVar1 - piVar4[8];

        if (tVar1 <= piVar4[8]) {

          uVar2 = 0;

        }

        uVar3 = piVar4[2] - uVar2;

        if ((uint)piVar4[2] <= uVar2) {

          uVar3 = 0;

        }

        if ((uVar5 == 0xffffffff) || (uVar3 < uVar5)) break;

        piVar4 = (int *)*piVar4;

        if (piVar4 == (int *)0x0) {

          return uVar5;

        }

      }

      piVar4 = (int *)*piVar4;

      uVar5 = uVar3;

    } while (piVar4 != (int *)0x0);

  }

  return uVar3;

}