1 /* libmpdclient
2 * (c)2003-2004 by Warren Dukes (shank@mercury.chem.pitt.edu)
3 * This project's homepage is: http://www.musicpd.org
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
20 #include "libmpdclient.h"
22 #include <errno.h>
23 #include <sys/types.h>
24 #include <sys/socket.h>
25 #include <netdb.h>
26 #include <stdio.h>
27 #include <sys/param.h>
28 #include <string.h>
29 #include <netinet/in.h>
30 #include <arpa/inet.h>
31 #include <unistd.h>
32 #include <stdlib.h>
34 #ifdef HAVE_CONFIG_H
35 #include "config.h"
36 #ifndef HAVE_SOCKLEN_T
37 typedef int socklen_t;
38 #endif
39 #endif
41 #ifndef MPD_NO_IPV6
42 #ifdef AF_INET6
43 #define MPD_HAVE_IPV6
44 #endif
45 #endif
47 #ifdef MPD_HAVE_IPV6
48 int mpd_ipv6Supported() {
49 int s;
50 s = socket(AF_INET6,SOCK_STREAM,0);
51 if(s == -1) return 0;
52 close(s);
53 return 1;
54 }
55 #endif
58 char * mpd_sanitizeArg(const char * arg) {
59 size_t i;
60 int count=0;
61 char * ret;
63 for(i=0;i<strlen(arg);i++) {
64 if(arg[i]=='"' || arg[i]=='\\') count++;
65 }
67 ret = malloc(strlen(arg)+count+1);
69 count = 0;
70 for(i=0;i<strlen(arg)+1;i++) {
71 if(arg[i]=='"' || arg[i]=='\\') {
72 ret[i+count] = '\\';
73 count++;
74 }
75 ret[i+count] = arg[i];
76 }
78 return ret;
79 }
81 mpd_ReturnElement * mpd_newReturnElement(const char * name, const char * value)
82 {
83 mpd_ReturnElement * ret = malloc(sizeof(mpd_ReturnElement));
85 ret->name = strdup(name);
86 ret->value = strdup(value);
88 return ret;
89 }
91 void mpd_freeReturnElement(mpd_ReturnElement * re) {
92 free(re->name);
93 free(re->value);
94 free(re);
95 }
97 void mpd_setConnectionTimeout(mpd_Connection * connection, float timeout) {
98 connection->timeout.tv_sec = (int)timeout;
99 connection->timeout.tv_usec = (int)(timeout*1e6 -
100 connection->timeout.tv_sec*1000000+0.5);
101 }
103 mpd_Connection * mpd_newConnection(const char * host, int port, float timeout) {
104 int err;
105 struct hostent * he;
106 struct sockaddr * dest;
107 socklen_t destlen;
108 struct sockaddr_in sin;
109 char * rt;
110 char * output;
111 mpd_Connection * connection = malloc(sizeof(mpd_Connection));
112 struct timeval tv;
113 fd_set fds;
114 #ifdef MPD_HAVE_IPV6
115 struct sockaddr_in6 sin6;
116 #endif
117 strcpy(connection->buffer,"");
118 connection->buflen = 0;
119 connection->bufstart = 0;
120 strcpy(connection->errorStr,"");
121 connection->error = 0;
122 connection->doneProcessing = 0;
123 connection->commandList = 0;
124 connection->returnElement = NULL;
126 if(!(he=gethostbyname(host))) {
127 snprintf(connection->errorStr,MPD_BUFFER_MAX_LENGTH,
128 "host \"%s\" not found",host);
129 connection->error = MPD_ERROR_UNKHOST;
130 return connection;
131 }
133 memset(&sin,0,sizeof(struct sockaddr_in));
134 /*dest.sin_family = he->h_addrtype;*/
135 sin.sin_family = AF_INET;
136 sin.sin_port = htons(port);
137 #ifdef MPD_HAVE_IPV6
138 memset(&sin6,0,sizeof(struct sockaddr_in6));
139 sin6.sin6_family = AF_INET6;
140 sin6.sin6_port = htons(port);
141 #endif
142 switch(he->h_addrtype) {
143 case AF_INET:
144 memcpy((char *)&sin.sin_addr.s_addr,(char *)he->h_addr,
145 he->h_length);
146 dest = (struct sockaddr *)&sin;
147 destlen = sizeof(struct sockaddr_in);
148 break;
149 #ifdef MPD_HAVE_IPV6
150 case AF_INET6:
151 if(!mpd_ipv6Supported()) {
152 strcpy(connection->errorStr,"no IPv6 suuport but a "
153 "IPv6 address found\n");
154 connection->error = MPD_ERROR_SYSTEM;
155 return connection;
156 }
157 memcpy((char *)&sin6.sin6_addr.s6_addr,(char *)he->h_addr,
158 he->h_length);
159 dest = (struct sockaddr *)&sin6;
160 destlen = sizeof(struct sockaddr_in6);
161 break;
162 #endif
163 default:
164 strcpy(connection->errorStr,"address type is not IPv4 or "
165 "IPv6\n");
166 connection->error = MPD_ERROR_SYSTEM;
167 return connection;
168 break;
169 }
171 if((connection->sock = socket(dest->sa_family,SOCK_STREAM,0))<0) {
172 strcpy(connection->errorStr,"problems creating socket");
173 connection->error = MPD_ERROR_SYSTEM;
174 return connection;
175 }
177 /* connect stuff */
178 {
179 #ifdef SO_RCVTIMEO
180 struct timeval rcvoldto;
181 struct timeval sndoldto;
182 socklen_t oldlen = sizeof(struct timeval);
184 mpd_setConnectionTimeout(connection,timeout);
186 tv.tv_sec = connection->timeout.tv_sec;
187 tv.tv_usec = connection->timeout.tv_usec;
189 if(getsockopt(connection->sock,SOL_SOCKET,SO_RCVTIMEO,&rcvoldto,
190 &oldlen)<0 ||
191 getsockopt(connection->sock,SOL_SOCKET,
192 SO_SNDTIMEO,&sndoldto,&oldlen)<0)
193 {
194 strcpy(connection->errorStr,"problems getting socket "
195 "timeout\n");
196 connection->error = MPD_ERROR_SYSTEM;
197 return connection;
198 }
199 if(setsockopt(connection->sock,SOL_SOCKET,SO_RCVTIMEO,&tv,
200 sizeof(struct timeval))<0 ||
201 setsockopt(connection->sock,SOL_SOCKET,
202 SO_SNDTIMEO,&tv,
203 sizeof(struct timeval))<0)
204 {
205 strcpy(connection->errorStr,"problems setting socket "
206 "timeout\n");
207 connection->error = MPD_ERROR_SYSTEM;
208 return connection;
209 }
210 #endif
211 if(connect(connection->sock,dest,destlen)<0) {
212 snprintf(connection->errorStr,MPD_BUFFER_MAX_LENGTH,
213 "problems connecting to \"%s\" on port"
214 " %i",host,port);
215 connection->error = MPD_ERROR_CONNPORT;
216 return connection;
217 }
218 #ifdef SO_RCVTIMEO
219 if(setsockopt(connection->sock,SOL_SOCKET,SO_SNDTIMEO,&rcvoldto,
220 sizeof(struct timeval))<0 ||
221 setsockopt(connection->sock,SOL_SOCKET,
222 SO_SNDTIMEO,&sndoldto,
223 sizeof(struct timeval))<0)
224 {
225 strcpy(connection->errorStr,"problems setting socket "
226 "timeout\n");
227 connection->error = MPD_ERROR_SYSTEM;
228 return connection;
229 }
230 #endif
231 }
233 while(!(rt = strstr(connection->buffer,"\n"))) {
234 tv.tv_sec = connection->timeout.tv_sec;
235 tv.tv_usec = connection->timeout.tv_usec;
236 FD_ZERO(&fds);
237 FD_SET(connection->sock,&fds);
238 if((err = select(connection->sock+1,&fds,NULL,NULL,&tv)) == 1) {
239 int readed;
240 readed = recv(connection->sock,
241 &(connection->buffer[connection->buflen]),
242 MPD_BUFFER_MAX_LENGTH-connection->buflen,0);
243 if(readed<=0) {
244 snprintf(connection->errorStr,MPD_BUFFER_MAX_LENGTH,
245 "problems getting a response from"
246 " \"%s\" on port %i",host,
247 port);
248 connection->error = MPD_ERROR_NORESPONSE;
249 return connection;
250 }
251 connection->buflen+=readed;
252 connection->buffer[connection->buflen] = '\0';
253 tv.tv_sec = connection->timeout.tv_sec;
254 tv.tv_usec = connection->timeout.tv_usec;
255 }
256 else if(err<0 && errno==EINTR) continue;
257 else {
258 snprintf(connection->errorStr,MPD_BUFFER_MAX_LENGTH,
259 "timeout in attempting to get a response from"
260 " \"%s\" on port %i",host,port);
261 connection->error = MPD_ERROR_NORESPONSE;
262 return connection;
263 }
264 }
266 *rt = '\0';
267 output = strdup(connection->buffer);
268 strcpy(connection->buffer,rt+1);
269 connection->buflen = strlen(connection->buffer);
271 if(strncmp(output,MPD_WELCOME_MESSAGE,strlen(MPD_WELCOME_MESSAGE))) {
272 free(output);
273 snprintf(connection->errorStr,MPD_BUFFER_MAX_LENGTH,
274 "mpd not running on port %i on host \"%s\"",
275 port,host);
276 connection->error = MPD_ERROR_NOTMPD;
277 return connection;
278 }
280 {
281 char * test;
282 char * version[3];
283 char * tmp = &output[strlen(MPD_WELCOME_MESSAGE)];
284 char * search = ".";
285 int i;
287 for(i=0;i<3;i++) {
288 char * tok;
289 if(i==3) search = " ";
290 version[i] = strtok_r(tmp,search,&tok);
291 if(!version[i]) {
292 free(output);
293 snprintf(connection->errorStr,
294 MPD_BUFFER_MAX_LENGTH,
295 "error parsing version number at "
296 "\"%s\"",
297 &output[strlen(MPD_WELCOME_MESSAGE)]);
298 connection->error = MPD_ERROR_NOTMPD;
299 return connection;
300 }
301 connection->version[i] = strtol(version[i],&test,10);
302 if(version[i]==test || *test!='\0') {
303 free(output);
304 snprintf(connection->errorStr,
305 MPD_BUFFER_MAX_LENGTH,
306 "error parsing version number at "
307 "\"%s\"",
308 &output[strlen(MPD_WELCOME_MESSAGE)]);
309 connection->error = MPD_ERROR_NOTMPD;
310 return connection;
311 }
312 tmp = NULL;
313 }
314 }
316 free(output);
318 connection->doneProcessing = 1;
320 return connection;
321 }
323 void mpd_clearError(mpd_Connection * connection) {
324 connection->error = 0;
325 connection->errorStr[0] = '\0';
326 }
328 void mpd_closeConnection(mpd_Connection * connection) {
329 close(connection->sock);
330 if(connection->returnElement) free(connection->returnElement);
331 free(connection);
332 }
334 void mpd_executeCommand(mpd_Connection * connection, char * command) {
335 int ret;
336 struct timeval tv;
337 fd_set fds;
338 char * commandPtr = command;
339 int commandLen = strlen(command);
341 if(!connection->doneProcessing && !connection->commandList) {
342 strcpy(connection->errorStr,"not done processing current command");
343 connection->error = 1;
344 return;
345 }
347 mpd_clearError(connection);
349 FD_ZERO(&fds);
350 FD_SET(connection->sock,&fds);
351 tv.tv_sec = connection->timeout.tv_sec;
352 tv.tv_usec = connection->timeout.tv_usec;
354 while((ret = select(connection->sock+1,NULL,&fds,NULL,&tv)==1) ||
355 (ret==-1 && errno==EINTR)) {
356 ret = send(connection->sock,commandPtr,commandLen,
357 MSG_DONTWAIT);
358 if(ret<=0)
359 {
360 if(ret==EAGAIN || ret==EINTR) continue;
361 snprintf(connection->errorStr,MPD_BUFFER_MAX_LENGTH,
362 "problems giving command \"%s\"",command);
363 connection->error = MPD_ERROR_SENDING;
364 return;
365 }
366 else {
367 commandPtr+=ret;
368 commandLen-=ret;
369 }
371 if(commandLen<=0) break;
372 }
374 if(commandLen>0) {
375 perror("");
376 snprintf(connection->errorStr,MPD_BUFFER_MAX_LENGTH,
377 "timeout sending command \"%s\"",command);
378 connection->error = MPD_ERROR_TIMEOUT;
379 return;
380 }
382 if(!connection->commandList) connection->doneProcessing = 0;
383 }
385 void mpd_getNextReturnElement(mpd_Connection * connection) {
386 char * output = NULL;
387 char * rt = NULL;
388 char * name;
389 char * value;
390 fd_set fds;
391 struct timeval tv;
392 char * tok;
393 int readed;
394 char * bufferCheck;
395 int err;
397 if(connection->returnElement) mpd_freeReturnElement(connection->returnElement);
398 connection->returnElement = NULL;
400 if(connection->doneProcessing) {
401 strcpy(connection->errorStr,"already done processing current command");
402 connection->error = 1;
403 return;
404 }
406 bufferCheck = connection->buffer+connection->bufstart;
407 while(connection->bufstart>=connection->buflen ||
408 !(rt = strstr(bufferCheck,"\n"))) {
409 if(connection->buflen>=MPD_BUFFER_MAX_LENGTH) {
410 memmove(connection->buffer,
411 connection->buffer+
412 connection->bufstart,
413 connection->buflen-
414 connection->bufstart+1);
415 bufferCheck-=connection->bufstart;
416 connection->buflen-=connection->bufstart;
417 connection->bufstart = 0;
418 }
419 if(connection->buflen>=MPD_BUFFER_MAX_LENGTH) {
420 strcpy(connection->errorStr,"buffer overrun");
421 connection->error = MPD_ERROR_BUFFEROVERRUN;
422 connection->doneProcessing = 1;
423 return;
424 }
425 bufferCheck+=connection->buflen-connection->bufstart;
426 tv.tv_sec = connection->timeout.tv_sec;
427 tv.tv_usec = connection->timeout.tv_usec;
428 FD_ZERO(&fds);
429 FD_SET(connection->sock,&fds);
430 if((err = select(connection->sock+1,&fds,NULL,NULL,&tv) == 1)) {
431 readed = recv(connection->sock,
432 connection->buffer+connection->buflen,
433 MPD_BUFFER_MAX_LENGTH-connection->buflen,
434 MSG_DONTWAIT);
435 if(readed<0 && (errno==EAGAIN || errno==EINTR)) {
436 continue;
437 }
438 if(readed<=0) {
439 strcpy(connection->errorStr,"connection"
440 " closed");
441 connection->error = MPD_ERROR_CONNCLOSED;
442 connection->doneProcessing = 1;
443 return;
444 }
445 connection->buflen+=readed;
446 connection->buffer[connection->buflen] = '\0';
447 }
448 else if(err<0 && errno==EINTR) continue;
449 else {
450 strcpy(connection->errorStr,"connection timeout");
451 connection->error = MPD_ERROR_TIMEOUT;
452 connection->doneProcessing = 1;
453 return;
454 }
455 }
457 *rt = '\0';
458 output = connection->buffer+connection->bufstart;
459 connection->bufstart = rt - connection->buffer + 1;
461 if(strcmp(output,"OK")==0) {
462 connection->doneProcessing = 1;
463 return;
464 }
465 if(strncmp(output,"ACK",strlen("ACK"))==0) {
466 strcpy(connection->errorStr,output);
467 connection->error = MPD_ERROR_ACK;
468 connection->doneProcessing = 1;
469 return;
470 }
472 name = strtok_r(output,":",&tok);
473 if(name && (value = strtok_r(NULL,"",&tok)) && value[0]==' ') {
474 connection->returnElement = mpd_newReturnElement(name,&(value[1]));
475 }
476 else {
477 if(!name || !value) {
478 snprintf(connection->errorStr,MPD_BUFFER_MAX_LENGTH,
479 "error parsing: %s",output);
480 }
481 else {
482 snprintf(connection->errorStr,MPD_BUFFER_MAX_LENGTH,
483 "error parsing: %s:%s",name,value);
484 }
485 connection->errorStr[MPD_BUFFER_MAX_LENGTH] = '\0';
486 connection->error = 1;
487 }
488 }
490 void mpd_finishCommand(mpd_Connection * connection) {
491 while(!connection->doneProcessing) mpd_getNextReturnElement(connection);
492 }
495 mpd_Status * mpd_getStatus(mpd_Connection * connection) {
496 mpd_Status * status;
498 mpd_executeCommand(connection,"status\n");
500 if(connection->error) return NULL;
502 status = malloc(sizeof(mpd_Status));
503 status->volume = -1;
504 status->repeat = 0;
505 status->random = 0;
506 status->playlist = -1;
507 status->playlistLength = -1;
508 status->state = -1;
509 status->song = 0;
510 status->elapsedTime = 0;
511 status->totalTime = 0;
512 status->bitRate = 0;
513 status->sampleRate = 0;
514 status->bits = 0;
515 status->channels = 0;
516 status->crossfade = -1;
517 status->error = NULL;
519 mpd_getNextReturnElement(connection);
520 if(connection->error) {
521 free(status);
522 return NULL;
523 }
524 while(connection->returnElement) {
525 mpd_ReturnElement * re = connection->returnElement;
526 if(strcmp(re->name,"volume")==0) {
527 status->volume = atoi(re->value);
528 }
529 else if(strcmp(re->name,"repeat")==0) {
530 status->repeat = atoi(re->value);
531 }
532 else if(strcmp(re->name,"random")==0) {
533 status->random = atoi(re->value);
534 }
535 else if(strcmp(re->name,"playlist")==0) {
536 status->playlist = strtol(re->value,NULL,10);
537 }
538 else if(strcmp(re->name,"playlistlength")==0) {
539 status->playlistLength = atoi(re->value);
540 }
541 else if(strcmp(re->name,"bitrate")==0) {
542 status->bitRate = atoi(re->value);
543 }
544 else if(strcmp(re->name,"state")==0) {
545 if(strcmp(re->value,"play")==0) {
546 status->state = MPD_STATUS_STATE_PLAY;
547 }
548 else if(strcmp(re->value,"stop")==0) {
549 status->state = MPD_STATUS_STATE_STOP;
550 }
551 else if(strcmp(re->value,"pause")==0) {
552 status->state = MPD_STATUS_STATE_PAUSE;
553 }
554 else {
555 status->state = MPD_STATUS_STATE_UNKNOWN;
556 }
557 }
558 else if(strcmp(re->name,"song")==0) {
559 status->song = atoi(re->value);
560 }
561 else if(strcmp(re->name,"time")==0) {
562 char * tok;
563 char * copy;
564 copy = strdup(re->value);
565 status->elapsedTime = atoi(strtok_r(copy,":",&tok));
566 status->totalTime = atoi(strtok_r(NULL,"",&tok));
567 free(copy);
568 }
569 else if(strcmp(re->name,"error")==0) {
570 status->error = strdup(re->value);
571 }
572 else if(strcmp(re->name,"xfade")==0) {
573 status->crossfade = atoi(re->value);
574 }
575 else if(strcmp(re->name,"audio")==0) {
576 char * tok;
577 char * copy;
578 copy = strdup(re->value);
579 status->sampleRate = atoi(strtok_r(copy,":",&tok));
580 status->bits = atoi(strtok_r(NULL,":",&tok));
581 status->channels = atoi(strtok_r(NULL,"",&tok));
582 free(copy);
583 }
585 mpd_getNextReturnElement(connection);
586 if(connection->error) {
587 free(status);
588 return NULL;
589 }
590 }
592 if(connection->error) {
593 free(status);
594 return NULL;
595 }
596 else if(status->state<0) {
597 strcpy(connection->errorStr,"state not found");
598 connection->error = 1;
599 free(status);
600 return NULL;
601 }
603 return status;
604 }
606 void mpd_freeStatus(mpd_Status * status) {
607 if(status->error) free(status->error);
608 free(status);
609 }
611 mpd_Stats * mpd_getStats(mpd_Connection * connection) {
612 mpd_Stats * stats;
614 mpd_executeCommand(connection,"stats\n");
616 if(connection->error) return NULL;
618 stats = malloc(sizeof(mpd_Stats));
619 stats->numberOfArtists = 0;
620 stats->numberOfAlbums = 0;
621 stats->numberOfSongs = 0;
622 stats->uptime = 0;
623 stats->dbUpdateTime = 0;
624 stats->playTime = 0;
625 stats->dbPlayTime = 0;
627 mpd_getNextReturnElement(connection);
628 if(connection->error) {
629 free(stats);
630 return NULL;
631 }
632 while(connection->returnElement) {
633 mpd_ReturnElement * re = connection->returnElement;
634 if(strcmp(re->name,"artists")==0) {
635 stats->numberOfArtists = atoi(re->value);
636 }
637 else if(strcmp(re->name,"albums")==0) {
638 stats->numberOfAlbums = atoi(re->value);
639 }
640 else if(strcmp(re->name,"songs")==0) {
641 stats->numberOfSongs = atoi(re->value);
642 }
643 else if(strcmp(re->name,"uptime")==0) {
644 stats->uptime = strtol(re->value,NULL,10);
645 }
646 else if(strcmp(re->name,"db_update")==0) {
647 stats->dbUpdateTime = strtol(re->value,NULL,10);
648 }
649 else if(strcmp(re->name,"playtime")==0) {
650 stats->playTime = strtol(re->value,NULL,10);
651 }
652 else if(strcmp(re->name,"db_playtime")==0) {
653 stats->dbPlayTime = strtol(re->value,NULL,10);
654 }
656 mpd_getNextReturnElement(connection);
657 if(connection->error) {
658 free(stats);
659 return NULL;
660 }
661 }
663 if(connection->error) {
664 free(stats);
665 return NULL;
666 }
668 return stats;
669 }
671 void mpd_freeStats(mpd_Stats * stats) {
672 free(stats);
673 }
675 void mpd_initSong(mpd_Song * song) {
676 song->file = NULL;
677 song->artist = NULL;
678 song->album = NULL;
679 song->track = NULL;
680 song->title = NULL;
681 song->time = MPD_SONG_NO_TIME;
682 }
684 void mpd_finishSong(mpd_Song * song) {
685 if(song->file) free(song->file);
686 if(song->artist) free(song->artist);
687 if(song->album) free(song->album);
688 if(song->title) free(song->title);
689 if(song->track) free(song->track);
690 }
692 mpd_Song * mpd_newSong() {
693 mpd_Song * ret = malloc(sizeof(mpd_Song));
695 mpd_initSong(ret);
697 return ret;
698 }
700 void mpd_freeSong(mpd_Song * song) {
701 mpd_finishSong(song);
702 free(song);
703 }
705 mpd_Song * mpd_songDup(mpd_Song * song) {
706 mpd_Song * ret = mpd_newSong();
708 if(song->file) ret->file = strdup(song->file);
709 if(song->artist) ret->artist = strdup(song->artist);
710 if(song->album) ret->album = strdup(song->album);
711 if(song->title) ret->title = strdup(song->title);
712 if(song->track) ret->track = strdup(song->track);
713 ret->time = song->time;
715 return ret;
716 }
718 void mpd_initDirectory(mpd_Directory * directory) {
719 directory->path = NULL;
720 }
722 void mpd_finishDirectory(mpd_Directory * directory) {
723 if(directory->path) free(directory->path);
724 }
726 mpd_Directory * mpd_newDirectory () {
727 mpd_Directory * directory = malloc(sizeof(mpd_Directory));;
729 mpd_initDirectory(directory);
731 return directory;
732 }
734 void mpd_freeDirectory(mpd_Directory * directory) {
735 mpd_finishDirectory(directory);
737 free(directory);
738 }
740 mpd_Directory * mpd_directoryDup(mpd_Directory * directory) {
741 mpd_Directory * ret = mpd_newDirectory();
743 if(directory->path) ret->path = strdup(directory->path);
745 return ret;
746 }
748 void mpd_initPlaylistFile(mpd_PlaylistFile * playlist) {
749 playlist->path = NULL;
750 }
752 void mpd_finishPlaylistFile(mpd_PlaylistFile * playlist) {
753 if(playlist->path) free(playlist->path);
754 }
756 mpd_PlaylistFile * mpd_newPlaylistFile() {
757 mpd_PlaylistFile * playlist = malloc(sizeof(mpd_PlaylistFile));
759 mpd_initPlaylistFile(playlist);
761 return playlist;
762 }
764 void mpd_freePlaylistFile(mpd_PlaylistFile * playlist) {
765 mpd_finishPlaylistFile(playlist);
766 free(playlist);
767 }
769 mpd_PlaylistFile * mpd_playlistFileDup(mpd_PlaylistFile * playlist) {
770 mpd_PlaylistFile * ret = mpd_newPlaylistFile();
772 if(playlist->path) ret->path = strdup(playlist->path);
774 return ret;
775 }
777 void mpd_initInfoEntity(mpd_InfoEntity * entity) {
778 entity->info.directory = NULL;
779 }
781 void mpd_finishInfoEntity(mpd_InfoEntity * entity) {
782 if(entity->info.directory) {
783 if(entity->type == MPD_INFO_ENTITY_TYPE_DIRECTORY) {
784 mpd_freeDirectory(entity->info.directory);
785 }
786 else if(entity->type == MPD_INFO_ENTITY_TYPE_SONG) {
787 mpd_freeSong(entity->info.song);
788 }
789 else if(entity->type == MPD_INFO_ENTITY_TYPE_PLAYLISTFILE) {
790 mpd_freePlaylistFile(entity->info.playlistFile);
791 }
792 }
793 }
795 mpd_InfoEntity * mpd_newInfoEntity() {
796 mpd_InfoEntity * entity = malloc(sizeof(mpd_InfoEntity));
798 mpd_initInfoEntity(entity);
800 return entity;
801 }
803 void mpd_freeInfoEntity(mpd_InfoEntity * entity) {
804 mpd_finishInfoEntity(entity);
805 free(entity);
806 }
808 void mpd_sendInfoCommand(mpd_Connection * connection, char * command) {
809 mpd_executeCommand(connection,command);
810 }
812 mpd_InfoEntity * mpd_getNextInfoEntity(mpd_Connection * connection) {
813 mpd_InfoEntity * entity = NULL;
815 if(connection->doneProcessing) return NULL;
817 if(!connection->returnElement) mpd_getNextReturnElement(connection);
819 if(connection->returnElement) {
820 if(strcmp(connection->returnElement->name,"file")==0) {
821 entity = mpd_newInfoEntity();
822 entity->type = MPD_INFO_ENTITY_TYPE_SONG;
823 entity->info.song = mpd_newSong();
824 entity->info.song->file =
825 strdup(connection->returnElement->value);
826 }
827 else if(strcmp(connection->returnElement->name,
828 "directory")==0) {
829 entity = mpd_newInfoEntity();
830 entity->type = MPD_INFO_ENTITY_TYPE_DIRECTORY;
831 entity->info.directory = mpd_newDirectory();
832 entity->info.directory->path =
833 strdup(connection->returnElement->value);
834 }
835 else if(strcmp(connection->returnElement->name,"playlist")==0) {
836 entity = mpd_newInfoEntity();
837 entity->type = MPD_INFO_ENTITY_TYPE_PLAYLISTFILE;
838 entity->info.playlistFile = mpd_newPlaylistFile();
839 entity->info.playlistFile->path =
840 strdup(connection->returnElement->value);
841 }
842 else {
843 connection->error = 1;
844 strcpy(connection->errorStr,"problem parsing song info");
845 return NULL;
846 }
847 }
848 else return NULL;
850 mpd_getNextReturnElement(connection);
851 while(connection->returnElement) {
852 mpd_ReturnElement * re = connection->returnElement;
854 if(strcmp(re->name,"file")==0) return entity;
855 else if(strcmp(re->name,"directory")==0) return entity;
856 else if(strcmp(re->name,"playlist")==0) return entity;
858 if(entity->type == MPD_INFO_ENTITY_TYPE_SONG &&
859 strlen(re->value)) {
860 if(!entity->info.song->artist &&
861 strcmp(re->name,"Artist")==0) {
862 entity->info.song->artist = strdup(re->value);
863 }
864 else if(!entity->info.song->album &&
865 strcmp(re->name,"Album")==0) {
866 entity->info.song->album = strdup(re->value);
867 }
868 else if(!entity->info.song->title &&
869 strcmp(re->name,"Title")==0) {
870 entity->info.song->title = strdup(re->value);
871 }
872 else if(!entity->info.song->track &&
873 strcmp(re->name,"Track")==0) {
874 entity->info.song->track = strdup(re->value);
875 }
876 else if(entity->info.song->time==MPD_SONG_NO_TIME &&
877 strcmp(re->name,"Time")==0) {
878 entity->info.song->time = atoi(re->value);
879 }
880 }
881 else if(entity->type == MPD_INFO_ENTITY_TYPE_DIRECTORY) {
882 }
883 else if(entity->type == MPD_INFO_ENTITY_TYPE_PLAYLISTFILE) {
884 }
886 mpd_getNextReturnElement(connection);
887 }
889 return entity;
890 }
892 char * mpd_getNextReturnElementNamed(mpd_Connection * connection,
893 const char * name)
894 {
895 if(connection->doneProcessing) return NULL;
897 mpd_getNextReturnElement(connection);
898 while(connection->returnElement) {
899 mpd_ReturnElement * re = connection->returnElement;
901 if(strcmp(re->name,name)==0) return strdup(re->value);
902 mpd_getNextReturnElement(connection);
903 }
905 return NULL;
906 }
908 char * mpd_getNextArtist(mpd_Connection * connection) {
909 return mpd_getNextReturnElementNamed(connection,"Artist");
910 }
912 char * mpd_getNextAlbum(mpd_Connection * connection) {
913 return mpd_getNextReturnElementNamed(connection,"Album");
914 }
916 void mpd_sendPlaylistInfoCommand(mpd_Connection * connection, int songNum) {
917 char * string = malloc(strlen("playlistinfo")+25);
918 sprintf(string,"playlistinfo \"%i\"\n",songNum);
919 mpd_sendInfoCommand(connection,string);
920 free(string);
921 }
923 void mpd_sendListallCommand(mpd_Connection * connection, const char * dir) {
924 char * sDir = mpd_sanitizeArg(dir);
925 char * string = malloc(strlen("listall")+strlen(sDir)+5);
926 sprintf(string,"listall \"%s\"\n",sDir);
927 mpd_sendInfoCommand(connection,string);
928 free(string);
929 free(sDir);
930 }
932 void mpd_sendListallInfoCommand(mpd_Connection * connection, const char * dir) {
933 char * sDir = mpd_sanitizeArg(dir);
934 char * string = malloc(strlen("listallinfo")+strlen(sDir)+5);
935 sprintf(string,"listallinfo \"%s\"\n",sDir);
936 mpd_sendInfoCommand(connection,string);
937 free(string);
938 free(sDir);
939 }
941 void mpd_sendLsInfoCommand(mpd_Connection * connection, const char * dir) {
942 char * sDir = mpd_sanitizeArg(dir);
943 char * string = malloc(strlen("lsinfo")+strlen(sDir)+5);
944 sprintf(string,"lsinfo \"%s\"\n",sDir);
945 mpd_sendInfoCommand(connection,string);
946 free(string);
947 free(sDir);
948 }
950 void mpd_sendSearchCommand(mpd_Connection * connection, int table,
951 const char * str)
952 {
953 char st[10];
954 char * string;
955 char * sanitStr = mpd_sanitizeArg(str);
956 if(table == MPD_TABLE_ARTIST) strcpy(st,"artist");
957 else if(table == MPD_TABLE_ALBUM) strcpy(st,"album");
958 else if(table == MPD_TABLE_TITLE) strcpy(st,"title");
959 else if(table == MPD_TABLE_FILENAME) strcpy(st,"filename");
960 else {
961 connection->error = 1;
962 strcpy(connection->errorStr,"unknown table for search");
963 return;
964 }
965 string = malloc(strlen("search")+strlen(sanitStr)+strlen(st)+6);
966 sprintf(string,"search %s \"%s\"\n",st,sanitStr);
967 mpd_sendInfoCommand(connection,string);
968 free(string);
969 free(sanitStr);
970 }
972 void mpd_sendFindCommand(mpd_Connection * connection, int table,
973 const char * str)
974 {
975 char st[10];
976 char * string;
977 char * sanitStr = mpd_sanitizeArg(str);
978 if(table == MPD_TABLE_ARTIST) strcpy(st,"artist");
979 else if(table == MPD_TABLE_ALBUM) strcpy(st,"album");
980 else if(table == MPD_TABLE_TITLE) strcpy(st,"title");
981 else {
982 connection->error = 1;
983 strcpy(connection->errorStr,"unknown table for find");
984 return;
985 }
986 string = malloc(strlen("find")+strlen(sanitStr)+strlen(st)+6);
987 sprintf(string,"find %s \"%s\"\n",st,sanitStr);
988 mpd_sendInfoCommand(connection,string);
989 free(string);
990 free(sanitStr);
991 }
993 void mpd_sendListCommand(mpd_Connection * connection, int table,
994 const char * arg1)
995 {
996 char st[10];
997 char * string;
998 if(table == MPD_TABLE_ARTIST) strcpy(st,"artist");
999 else if(table == MPD_TABLE_ALBUM) strcpy(st,"album");
1000 else {
1001 connection->error = 1;
1002 strcpy(connection->errorStr,"unknown table for list");
1003 return;
1004 }
1005 if(arg1) {
1006 char * sanitArg1 = mpd_sanitizeArg(arg1);
1007 string = malloc(strlen("list")+strlen(sanitArg1)+strlen(st)+6);
1008 sprintf(string,"list %s \"%s\"\n",st,sanitArg1);
1009 free(sanitArg1);
1010 }
1011 else {
1012 string = malloc(strlen("list")+strlen(st)+3);
1013 sprintf(string,"list %s\n",st);
1014 }
1015 mpd_sendInfoCommand(connection,string);
1016 free(string);
1017 }
1019 void mpd_sendAddCommand(mpd_Connection * connection, const char * file) {
1020 char * sFile = mpd_sanitizeArg(file);
1021 char * string = malloc(strlen("add")+strlen(sFile)+5);
1022 sprintf(string,"add \"%s\"\n",sFile);
1023 mpd_executeCommand(connection,string);
1024 free(string);
1025 free(sFile);
1026 }
1028 void mpd_sendDeleteCommand(mpd_Connection * connection, int songNum) {
1029 char * string = malloc(strlen("delete")+25);
1030 sprintf(string,"delete \"%i\"\n",songNum);
1031 mpd_sendInfoCommand(connection,string);
1032 free(string);
1033 }
1035 void mpd_sendSaveCommand(mpd_Connection * connection, const char * name) {
1036 char * sName = mpd_sanitizeArg(name);
1037 char * string = malloc(strlen("save")+strlen(sName)+5);
1038 sprintf(string,"save \"%s\"\n",sName);
1039 mpd_executeCommand(connection,string);
1040 free(string);
1041 free(sName);
1042 }
1044 void mpd_sendLoadCommand(mpd_Connection * connection, const char * name) {
1045 char * sName = mpd_sanitizeArg(name);
1046 char * string = malloc(strlen("load")+strlen(sName)+5);
1047 sprintf(string,"load \"%s\"\n",sName);
1048 mpd_executeCommand(connection,string);
1049 free(string);
1050 free(sName);
1051 }
1053 void mpd_sendRmCommand(mpd_Connection * connection, const char * name) {
1054 char * sName = mpd_sanitizeArg(name);
1055 char * string = malloc(strlen("rm")+strlen(sName)+5);
1056 sprintf(string,"rm \"%s\"\n",sName);
1057 mpd_executeCommand(connection,string);
1058 free(string);
1059 free(sName);
1060 }
1062 void mpd_sendShuffleCommand(mpd_Connection * connection) {
1063 mpd_executeCommand(connection,"shuffle\n");
1064 }
1066 void mpd_sendClearCommand(mpd_Connection * connection) {
1067 mpd_executeCommand(connection,"clear\n");
1068 }
1070 void mpd_sendPlayCommand(mpd_Connection * connection, int songNum) {
1071 char * string = malloc(strlen("play")+25);
1072 sprintf(string,"play \"%i\"\n",songNum);
1073 mpd_sendInfoCommand(connection,string);
1074 free(string);
1075 }
1077 void mpd_sendStopCommand(mpd_Connection * connection) {
1078 mpd_executeCommand(connection,"stop\n");
1079 }
1081 void mpd_sendPauseCommand(mpd_Connection * connection) {
1082 mpd_executeCommand(connection,"pause\n");
1083 }
1085 void mpd_sendNextCommand(mpd_Connection * connection) {
1086 mpd_executeCommand(connection,"next\n");
1087 }
1089 void mpd_sendMoveCommand(mpd_Connection * connection, int from, int to) {
1090 char * string = malloc(strlen("move")+25);
1091 sprintf(string,"move \"%i\" \"%i\"\n",from,to);
1092 mpd_sendInfoCommand(connection,string);
1093 free(string);
1094 }
1096 void mpd_sendSwapCommand(mpd_Connection * connection, int song1, int song2) {
1097 char * string = malloc(strlen("swap")+25);
1098 sprintf(string,"swap \"%i\" \"%i\"\n",song1,song2);
1099 mpd_sendInfoCommand(connection,string);
1100 free(string);
1101 }
1103 void mpd_sendSeekCommand(mpd_Connection * connection, int song, int time) {
1104 char * string = malloc(strlen("seek")+25);
1105 sprintf(string,"seek \"%i\" \"%i\"\n",song,time);
1106 mpd_sendInfoCommand(connection,string);
1107 free(string);
1108 }
1110 void mpd_sendUpdateCommand(mpd_Connection * connection) {
1111 mpd_executeCommand(connection,"update\n");
1112 }
1114 void mpd_sendPrevCommand(mpd_Connection * connection) {
1115 mpd_executeCommand(connection,"previous\n");
1116 }
1118 void mpd_sendRepeatCommand(mpd_Connection * connection, int repeatMode) {
1119 char * string = malloc(strlen("repeat")+25);
1120 sprintf(string,"repeat \"%i\"\n",repeatMode);
1121 mpd_executeCommand(connection,string);
1122 free(string);
1123 }
1125 void mpd_sendRandomCommand(mpd_Connection * connection, int randomMode) {
1126 char * string = malloc(strlen("random")+25);
1127 sprintf(string,"random \"%i\"\n",randomMode);
1128 mpd_executeCommand(connection,string);
1129 free(string);
1130 }
1132 void mpd_sendSetvolCommand(mpd_Connection * connection, int volumeChange) {
1133 char * string = malloc(strlen("setvol")+25);
1134 sprintf(string,"setvol \"%i\"\n",volumeChange);
1135 mpd_executeCommand(connection,string);
1136 free(string);
1137 }
1139 void mpd_sendVolumeCommand(mpd_Connection * connection, int volumeChange) {
1140 char * string = malloc(strlen("volume")+25);
1141 sprintf(string,"volume \"%i\"\n",volumeChange);
1142 mpd_executeCommand(connection,string);
1143 free(string);
1144 }
1146 void mpd_sendCrossfadeCommand(mpd_Connection * connection, int seconds) {
1147 char * string = malloc(strlen("crossfade")+25);
1148 sprintf(string,"crossfade \"%i\"\n",seconds);
1149 mpd_executeCommand(connection,string);
1150 free(string);
1151 }
1153 void mpd_sendPasswordCommand(mpd_Connection * connection, const char * pass) {
1154 char * sPass = mpd_sanitizeArg(pass);
1155 char * string = malloc(strlen("password")+strlen(sPass)+5);
1156 sprintf(string,"password \"%s\"\n",sPass);
1157 mpd_executeCommand(connection,string);
1158 free(string);
1159 free(sPass);
1160 }
1162 void mpd_sendCommandListBegin(mpd_Connection * connection) {
1163 if(connection->commandList) {
1164 strcpy(connection->errorStr,"already in command list mode");
1165 connection->error = 1;
1166 return;
1167 }
1168 connection->commandList = 1;
1169 mpd_executeCommand(connection,"command_list_begin\n");
1170 }
1172 void mpd_sendCommandListEnd(mpd_Connection * connection) {
1173 if(!connection->commandList) {
1174 strcpy(connection->errorStr,"not in command list mode");
1175 connection->error = 1;
1176 return;
1177 }
1178 connection->commandList = 0;
1179 mpd_executeCommand(connection,"command_list_end\n");
1180 }