/* $Id$ * $URL$ * * 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. * */ /* * 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 */ }