Btukfyl

I created a program. It is supposed to read signals from second terminal window and react depending on which signal and to which process it is sent. For example, my child process 1 should ignore all signals but SIGUSR1 and SIGXFSZ. When SIGUSR1 is called, it should print some information (which i did) and end. However, when SIGXFSZ is called, it should send the same signal to parrent process. How can I do that?

Should

if(sig == SIGXFSZ) {

   kill(number, getppid()); //where number is number for SIGXFSZ signal

}

placed in sig_handler function work?

#include <stdio.h>

#include <stdlib.h>

#include <signal.h>

#include <unistd.h>



void signals_handler(int signal){

    psignal(signal,"nOtrzymalem sygnal");

    printf("Numer sygnalu to: %dn", signal);

    kill(getppid(), signal);

    return;

}



void sig_handler (int sig){

    signal(SIGUSR1, sig_handler);

    sigset_t mask_set;

    sigset_t old_set;

    sigfillset(&mask_set);

    sigdelset(&mask_set, SIGINT);

//  sigdelset(&mask_set, SIGUSR1);

    sigprocmask(SIG_SETMASK, &mask_set, &old_set);

//   psignal(sig, "nOdebralem sygnal");

   printf("Numer sygnału: %d. ^C mnie nie zamknie! %dn", sig, getppid());

    printf("HEHHEHEHEHE");

    for (;;) 

        pause(); //czy teraz zostanie przyjęty i obsłużony SIGUSR1?

    sigprocmask(SIG_SETMASK, &old_set, NULL);

    return;

}



int main(void) {

    printf("PID: %dn", getpid());

    /* zastawiamy "pulapke" na sygnal */

    signal(SIGINT, signals_handler);



    if(fork() == 0) { //forking

        printf("PPID: %dn", getpid());

        signal(SIGUSR1, sig_handler);

        sleep(100);        

        exit(0);

    }



    if(fork() == 0) { //forking

        printf("PPID: %dn", getpid());

        signal(SIGUSR1, sig_handler);

        sleep(100);

        exit(0);

    }







    /* petla nieskonczona */

    for(;;)

    pause();    

    return 0;

}