#include <stdlib.h>
static struct test_struct *gtsp;
struct test_struct {
        int flags;
        char *p;
        char *comm;
};

char *write_buf(struct test_struct *tsp)
{
        int i;
        *tsp->p = 'A';
        return tsp->p;
}

int main_loop(void)
{
        unsigned int n;
        char *p;
        int f = -1;
        for (n = 0;; n++) {
                p = write_buf(gtsp);
        }
        return 1;
}

int main(int argc, char *argv[])
{
        struct test_struct ts;
        ts.flags = 0x11;
        ts.comm = "this_is_command";
        ts.p = NULL;
        gtsp = &ts;
        main_loop();
        exit(0);
}