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/* $Id: plugin_mpd.c,v 1.1 2006/04/15 05:22:52 reinelt Exp $
*
* mpd informations
*
* Copyright (C) 2006 Stefan Kuhne <sk-privat@gmx.net>
* Copyright (C) 2006 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
*
* This file is part of LCD4Linux.
*
* LCD4Linux is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* LCD4Linux is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*
* $Log: plugin_mpd.c,v $
* Revision 1.1 2006/04/15 05:22:52 reinelt
* mpd plugin from Stefan Kuhne
*
*/
/*
* exported functions:
*
* int plugin_init_sample (void)
* adds various functions
*
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "debug.h"
#include "plugin.h"
#include <libmpd/libmpd.h>
#ifdef WITH_DMALLOC
#include <dmalloc.h>
#endif
/* Struct Pointer */
struct Pointer {
mpd_Connection *conn;
mpd_Status *status;
mpd_InfoEntity *entity;
};
static struct Pointer connect()
{
char *host = "localhost";
char *port = "6600";
int iport;
char *test;
struct Pointer mpd;
if ((test = getenv("MPD_HOST"))) {
host = test;
}
if ((test = getenv("MPD_PORT"))) {
port = test;
}
iport = strtol(port, &test, 10);
if (iport < 0 || *test != '\0') {
fprintf(stderr, "MPD_PORT \"%s\" is not a positive integer\n", port);
exit(EXIT_FAILURE);
}
mpd.conn = mpd_newConnection(host, iport, 10);
mpd_sendCommandListOkBegin(mpd.conn);
mpd_sendStatusCommand(mpd.conn);
mpd_sendCurrentSongCommand(mpd.conn);
mpd_sendCommandListEnd(mpd.conn);
if ((mpd.status = mpd_getStatus(mpd.conn)) == NULL) {
fprintf(stderr, "%s\n", mpd.conn->errorStr);
mpd_closeConnection(mpd.conn);
}
if (mpd.status->error) {
printf("error: %s\n", mpd.status->error);
}
if (mpd.conn->error) {
fprintf(stderr, "%s\n", mpd.conn->errorStr);
mpd_closeConnection(mpd.conn);
}
return mpd;
}
static void disconnect(struct Pointer mpd)
{
if (mpd.conn->error) {
fprintf(stderr, "%s\n", mpd.conn->errorStr);
mpd_closeConnection(mpd.conn);
}
mpd_finishCommand(mpd.conn);
if (mpd.conn->error) {
fprintf(stderr, "%s\n", mpd.conn->errorStr);
mpd_closeConnection(mpd.conn);
}
mpd_freeStatus(mpd.status);
mpd_closeConnection(mpd.conn);
}
/* function 'artist' */
/* takes one argument, a number */
/* multiplies the number by 3.0 */
/* same as 'mul2', but shorter */
static void artist(RESULT * result, RESULT * query)
{
char *value = " ";
struct Pointer mpd = connect();
mpd_nextListOkCommand(mpd.conn);
while ((mpd.entity = mpd_getNextInfoEntity(mpd.conn))) {
mpd_Song *song = mpd.entity->info.song;
if (mpd.entity->type != MPD_INFO_ENTITY_TYPE_SONG) {
mpd_freeInfoEntity(mpd.entity);
continue;
}
if (song->artist) {
value = strdup(song->artist);
}
mpd_freeInfoEntity(mpd.entity);
}
disconnect(mpd);
/* store result */
SetResult(&result, R_STRING, value);
free(value);
}
static void title(RESULT * result, RESULT * query)
{
char *value = " ";
struct Pointer mpd = connect();
mpd_nextListOkCommand(mpd.conn);
while ((mpd.entity = mpd_getNextInfoEntity(mpd.conn))) {
mpd_Song *song = mpd.entity->info.song;
if (mpd.entity->type != MPD_INFO_ENTITY_TYPE_SONG) {
mpd_freeInfoEntity(mpd.entity);
continue;
}
if (song->title) {
value = strdup(song->title);
}
mpd_freeInfoEntity(mpd.entity);
}
disconnect(mpd);
/* store result */
SetResult(&result, R_STRING, value);
free(value);
}
static void album(RESULT * result, RESULT * query)
{
char *value = " ";
struct Pointer mpd = connect();
mpd_nextListOkCommand(mpd.conn);
while ((mpd.entity = mpd_getNextInfoEntity(mpd.conn))) {
mpd_Song *song = mpd.entity->info.song;
if (mpd.entity->type != MPD_INFO_ENTITY_TYPE_SONG) {
mpd_freeInfoEntity(mpd.entity);
continue;
}
if (song->album) {
value = strdup(song->album);
}
mpd_freeInfoEntity(mpd.entity);
}
disconnect(mpd);
/* store result */
SetResult(&result, R_STRING, value);
free(value);
}
int plugin_init_mpd(void)
{
AddFunction("mpd::artist", 0, artist);
AddFunction("mpd::title", 0, title);
AddFunction("mpd::album", 0, album);
return 0;
}
void plugin_exit_mpd(void)
{
/* empty */
}
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