Parameters in the Signals Handler

Question

I have a doubt and even after searching I could not solve.

Let’s say I have the following signal handler:

struct sigaction conf_signal;
conf_signal.sa_flags = 0;
sigemptyset(&conf_signal.sa_mask);
conf_signal.sa_handler = &sinal_chegou;

And the following code inside a for:

    if (sigaction(SIGINT, &conf_signal, NULL) == -1) {
        perror("sigaction");
        exit(EXIT_FAILURE);
    }

And my job is sinal_chegou has the following signature:

void sinal_chegou(void){

How do I send a received parameter to argv[] for the function sinal_chegou using the signal handler?

Answer 1

Use a global variable. I don’t think there’s any other way.