Beispiel #1
0
static int
open_rdwr(const char * const path,
          tpath_entry *pe,
          int flags)
{
        return open_wronly(path, pe, flags);
}
int main(int argc, char **argv)
{
    populate_device(argc, argv);
    reset_marks(TOTAL_MARKS);

    /* 1 mark: open. Device must be able to be opened for reading, writing and
     * reading/writing to get this mark.
     */
    int fd = open_rdrw();
    if (fd < 0) {
        try_close(fd, false);
        goto end;
    }

    fd = open_rdonly();
    if (fd < 0) {
        try_close(fd, false);
        goto end;
    }

    fd = open_wronly();
    if (fd < 0) {
        try_close(fd, false);
        goto end;
    }

    /* fork another process and try the opens again */
    char *arg0 = "./test_1a_open_close";
    printv("Now forking to run %s\n", arg0);
    int pid = fork();
    if (pid == 0) {
        /* get rid of stdout */
        int null_fd = open("/dev/null", O_WRONLY);
        if (null_fd < 0) {
            printe("open(\"/dev/null\")");
            _exit(ERR_EXEC);
        }
        if (dup2(null_fd, STDOUT_FILENO) < 0) {
            printe("dup2()");
            _exit(ERR_EXEC);
        }

        /* execute the single open/close test */
        execl(arg0, arg0, device_node, NULL);
        printe("execl()");
        _exit(ERR_EXEC);
    } else {
        int status;
        wait(&status);
        if (WIFEXITED(status)) {
            int ret = WEXITSTATUS(status);
            if (ret == 0) {
                printv("Child returned success\n");
                update_marks(1);
            } else {
                printv("Child returned non-zero status (%d)\n", ret);
            }
        }
        try_close(fd, true);
        goto end;
    }

end:
    return end_marks();
}