+/* uid */
+char *
+uid(const char *null)
+{
+ register uid_t uid;
+
+ /* get the values */
+ uid = geteuid();
+
+ /* if it worked, return */
+ if (uid) {
+ return smprintf("%d", uid);
+ } else {
+ fprintf(stderr, "Could not get uid.\n");
+ return smprintf("n/a");
+ }
+
+ return smprintf("n/a");
+}
+
+
+/* alsa volume percentage */
+char *
+vol_perc(const char *soundcard)
+{
+ int mute = 0;
+ long vol = 0, max = 0, min = 0;
+ snd_mixer_t *handle;
+ snd_mixer_elem_t *pcm_mixer, *mas_mixer;
+ snd_mixer_selem_id_t *vol_info, *mute_info;
+
+ /* open everything */
+ snd_mixer_open(&handle, 0);
+ snd_mixer_attach(handle, soundcard);
+ snd_mixer_selem_register(handle, NULL, NULL);
+ snd_mixer_load(handle);
+
+ /* prepare everything */
+ snd_mixer_selem_id_malloc(&vol_info);
+ snd_mixer_selem_id_malloc(&mute_info);
+ /* check */
+ if (vol_info == NULL || mute_info == NULL) {
+ fprintf(stderr, "Could not get alsa volume");
+ return smprintf("n/a");
+ }
+ snd_mixer_selem_id_set_name(vol_info, channel);
+ snd_mixer_selem_id_set_name(mute_info, channel);
+ pcm_mixer = snd_mixer_find_selem(handle, vol_info);
+ mas_mixer = snd_mixer_find_selem(handle, mute_info);
+
+ /* get the info */
+ snd_mixer_selem_get_playback_volume_range((snd_mixer_elem_t *)pcm_mixer, &min, &max);
+ snd_mixer_selem_get_playback_volume((snd_mixer_elem_t *)pcm_mixer, SND_MIXER_SCHN_MONO, &vol);
+ snd_mixer_selem_get_playback_switch(mas_mixer, SND_MIXER_SCHN_MONO, &mute);
+
+ /* clean up */
+ if (vol_info) {
+ snd_mixer_selem_id_free(vol_info);
+ }
+ if (mute_info) {
+ snd_mixer_selem_id_free(mute_info);
+ }
+ if (handle) {
+ snd_mixer_close(handle);
+ }
+
+ /* return the string (mute) */
+ if (!mute) {
+ return smprintf("mute");
+ } else {
+ return smprintf("%d%%", (vol * 100) / max);
+ }
+}