root/tests/lib/csu/h_initfini3.cxx
#include <dlfcn.h>
#include <err.h>
#include <unistd.h>

int
main(void)
{
        static const char msg1[] = "main started\n";
        static const char msg2[] = "main after dlopen\n";
        static const char msg3[] = "main terminated\n";

        void *handle;

        write(STDOUT_FILENO, msg1, sizeof(msg1) - 1);
        handle = dlopen("h_initfini3_dso.so", RTLD_NOW | RTLD_LOCAL);
        if (handle == NULL)
                err(1, "dlopen");
        write(STDOUT_FILENO, msg2, sizeof(msg2) - 1);
        dlclose(handle);
        write(STDOUT_FILENO, msg3, sizeof(msg3) - 1);
        return 0;
}