Software_System_HL2/10b.c at main · Coder-Galaxy/Software_System_HL2 · GitHub

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/*
============================================================================
Name : 10b
Author : Piyush Singh
Description : Write a separate program using sigaction system call to catch the following signals.
a. SIGSEGV
b. SIGINT
c. SIGFPE
Date: 19th Sep, 2025.
============================================================================
*/

#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <unistd.h>

void sigint_handler(int sig)
{
    printf(" 🛑 Caught SIGINT (Ctrl+C)\n");
    exit(0);
}

int main()
{
    struct sigaction sa;
    sa.sa_handler = sigint_handler;
    sigemptyset(&sa.sa_mask);
    sa.sa_flags = 0;

    sigaction(SIGINT, &sa, NULL);

    while (1)
    {
        printf("⌛ Waiting... Press Ctrl+C to interrupt\n");
        sleep(2);
    }

    return 0;
}

/*
Output:
╰─ ./10b                                                                      ─╯
⌛ Waiting... Press Ctrl+C to interrupt
⌛ Waiting... Press Ctrl+C to interrupt
⌛ Waiting... Press Ctrl+C to interrupt
⌛ Waiting... Press Ctrl+C to interrupt
⌛ Waiting... Press Ctrl+C to interrupt
^C🛑 Caught SIGINT (Ctrl+C)
*/