[LI] Signal behaves differently on LINUX and HPUX

[Ghins Mathai <ghins@xxxxxxxxxxxxxxx>]

Hi,
  SIGALRM  interrupts  the system calls in HPUX even when
  signal handler is present.
  When the signal is sent, the signal handler is called but the blocking

   system calls like "accept" are interrupted.

   Can somebody tell why does this happen on HPUX and
    how to solve it?
regards
-------

PS: Following is the code when run on HPUX "scanf" is  interrupted. On
Linux "scanf" will wait till user presses any key.
{ Looks like commercial unices can't match Linux ;-)   }
-------
#include <stdio.h>
#include <signal.h>

void signal_handler(int i)
{
  printf("received sig alarm\n");
  signal(SIGALRM,signal_handler);
  alarm(10);
  return;
}
void main(void)
{
  int value;
  alarm(5);
  signal(SIGALRM,signal_handler);

  printf("Enter the value : \n");
  scanf("%d",&value);
  printf("The read value is %d\n",value);
}
---------


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