c - 文字の配列を返す方法は?

Question

snd_mixer_selem_get_id 関数から char 配列を返したい:

char* alsa_get_channel_name( void )
{
    int err;
    snd_mixer_selem_id_t *sid;
    snd_mixer_elem_t *elem;

    if ((err = snd_mixer_open (&handle, 0)) < 0) {
            fprintf(stderr, "mixer: open error: %s\n", snd_strerror(err));
    }
    if ((err = snd_mixer_attach (handle, card)) < 0) {
            fprintf(stderr, "mixer: attach error: %s\n", snd_strerror(err));
    }
    if ((err = snd_mixer_selem_register (handle, NULL, NULL)) < 0) {
            fprintf(stderr, "mixer: register error: %s\n", snd_strerror(err));
    }
    if ((err = snd_mixer_load (handle)) < 0) {
            fprintf(stderr, "mixer: load error: %s\n", snd_strerror(err));
    }

    snd_mixer_selem_id_alloca(&sid);

    for (elem = snd_mixer_first_elem(handle); elem; elem = snd_mixer_elem_next(elem)) {
            if ((!snd_mixer_selem_is_active(elem))
                    continue;

            snd_mixer_selem_get_id(elem, sid);
            const char *name = snd_mixer_selem_id_get_name(sid);
            if (name)
                sprintf(name, sizeof(name), "%s", snd_mixer_selem_get_name(elem));
    }
    snd_mixer_close(handle);

    return name;
}

行 sprintf(name, sizeof(name), "%s", snd_mixer_selem_get_name(elem)); の書き方がわかりません。チャンネル名を返します。

ありがとう