disable_sigalarm.c

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

int main(int argc, char *argv[])
{
        sigset_t sigs;

        sigemptyset(&sigs);
        sigaddset(&sigs, SIGALRM);
        sigprocmask(SIG_BLOCK, &sigs, 0);

        if (argc > 1) 
	{
                execvp(argv[1], argv + 1);
                perror("execv");
        } 
	else 
	{
                fprintf(stderr, "Usage: %s <command> [args...]\n", argv[0]);
        }
        return 1;
}