int pthread_atfork(__prepare *__prepare,__parent *__parent,__child *__child)

{

  undefined4 *puVar1;

  undefined4 *puVar2;

  int iVar3;

  int *piVar4;

  puVar2 = (undefined4 *)malloc(0x18)   //possible issue identified - semgrep

  iVar3 = 0xc;

  if (puVar2 != (undefined4 *)0x0) {

    pthread_mutex_lock((pthread_mutex_t *)&DAT_000317f0);

    if (__prepare != (__prepare *)0x0) {

      *puVar2 = __prepare;

      puVar1 = puVar2;

      puVar2[1] = DAT_00031808;

      DAT_00031808 = puVar1;

    }

    if (__parent != (__parent *)0x0) {

      piVar4 = &DAT_00031810;

      for (iVar3 = DAT_00031810; iVar3 != 0; iVar3 = *(int *)(iVar3 + 4)) {

        piVar4 = (int *)(iVar3 + 4);

      }

      puVar2[2] = __parent;

      puVar2[3] = *piVar4;

      *piVar4 = (int)(puVar2 + 2);

    }

    if (__child != (__child *)0x0) {

      piVar4 = &DAT_0003180c;

      for (iVar3 = DAT_0003180c; iVar3 != 0; iVar3 = *(int *)(iVar3 + 4)) {

        piVar4 = (int *)(iVar3 + 4);

      }

      puVar2[4] = __child;

      puVar2[5] = *piVar4;

      *piVar4 = (int)(puVar2 + 4);

    }

    pthread_mutex_unlock((pthread_mutex_t *)&DAT_000317f0);

    iVar3 = 0;

  }

  return iVar3;

}