vss: add state variable for fec client
[paraslash.git] / aft.c
1 /*
2 * Copyright (C) 2007-2010 Andre Noll <maan@systemlinux.org>
3 *
4 * Licensed under the GPL v2. For licencing details see COPYING.
5 */
6
7 /** \file aft.c Audio file table functions. */
8
9 #include <regex.h>
10 #include <dirent.h> /* readdir() */
11 #include <openssl/rc4.h>
12 #include <sys/mman.h>
13 #include <fnmatch.h>
14 #include <sys/shm.h>
15 #include <osl.h>
16
17 #include "para.h"
18 #include "error.h"
19 #include "crypt.h"
20 #include "string.h"
21 #include "afh.h"
22 #include "afs.h"
23 #include "net.h"
24 #include "fd.h"
25 #include "ipc.h"
26 #include "portable_io.h"
27
28 static struct osl_table *audio_file_table;
29 static char *status_items;
30 static char *parser_friendly_status_items;
31
32 /** The different sorting methods of the ls command. */
33 enum ls_sorting_method {
34 /** -sp (default) */
35 LS_SORT_BY_PATH,
36 /** -ss */
37 LS_SORT_BY_SCORE,
38 /** -sl */
39 LS_SORT_BY_LAST_PLAYED,
40 /** -sn */
41 LS_SORT_BY_NUM_PLAYED,
42 /** -sf */
43 LS_SORT_BY_FREQUENCY,
44 /** -sc */
45 LS_SORT_BY_CHANNELS,
46 /** -si */
47 LS_SORT_BY_IMAGE_ID,
48 /** -sy */
49 LS_SORT_BY_LYRICS_ID,
50 /** -sb */
51 LS_SORT_BY_BITRATE,
52 /** -sd */
53 LS_SORT_BY_DURATION,
54 /** -sa */
55 LS_SORT_BY_AUDIO_FORMAT,
56 /** -sh */
57 LS_SORT_BY_HASH,
58 };
59
60 /** The different listing modes of the ls command. */
61 enum ls_listing_mode {
62 /** Default listing mode. */
63 LS_MODE_SHORT,
64 /** -l or -ll */
65 LS_MODE_LONG,
66 /** -lv */
67 LS_MODE_VERBOSE,
68 /** -lm */
69 LS_MODE_MBOX,
70 /** -lc */
71 LS_MODE_CHUNKS,
72 /** -lp */
73 LS_MODE_PARSER,
74 };
75
76 /** The flags accepted by the ls command. */
77 enum ls_flags {
78 /** -p */
79 LS_FLAG_FULL_PATH = 1,
80 /** -a */
81 LS_FLAG_ADMISSIBLE_ONLY = 2,
82 /** -r */
83 LS_FLAG_REVERSE = 4,
84 /** -d */
85 LS_FLAG_UNIXDATE = 8,
86 };
87
88 /**
89 * The size of the individual output fields of the ls command.
90 *
91 * These depend on the actual content being listed. If, for instance only files
92 * with duration less than an hour are being listed, then the duration with is
93 * made smaller because then the duration is listed as mm:ss rather than
94 * hh:mm:ss.
95 */
96 struct ls_widths {
97 /** size of the score field. */
98 unsigned short score_width;
99 /** size of the image id field. */
100 unsigned short image_id_width;
101 /** size of the lyrics id field. */
102 unsigned short lyrics_id_width;
103 /** size of the bitrate field. */
104 unsigned short bitrate_width;
105 /** size of the frequency field. */
106 unsigned short frequency_width;
107 /** size of the duration field. */
108 unsigned short duration_width;
109 /** size of the num played field. */
110 unsigned short num_played_width;
111 /** size of the amp field. */
112 unsigned short amp_width;
113 };
114
115 /** Data passed from the ls command handler to its callback function. */
116 struct ls_options {
117 /** The given command line flags. */
118 unsigned flags;
119 /** The sorting method given at the command line. */
120 enum ls_sorting_method sorting;
121 /** The given listing mode (short, long, verbose, mbox). */
122 enum ls_listing_mode mode;
123 /** The arguments passed to the ls command. */
124 char **patterns;
125 /** Number of non-option arguments. */
126 int num_patterns;
127 /** Used for long listing mode to align the output fields. */
128 struct ls_widths widths;
129 /** Size of the \a data array. */
130 uint32_t array_size;
131 /** Number of used entries in the data array. */
132 uint32_t num_matching_paths;
133 /** Array of matching entries. */
134 struct ls_data *data;
135 /** Used to sort the array. */
136 struct ls_data **data_ptr;
137 };
138
139 /**
140 * Describes the layout of the mmapped-afs info struct.
141 *
142 * \sa struct afs_info.
143 */
144 enum afsi_offsets {
145 /** Where .last_played is stored. */
146 AFSI_LAST_PLAYED_OFFSET = 0,
147 /** Storage position of the attributes bitmap. */
148 AFSI_ATTRIBUTES_OFFSET = 8,
149 /** Storage position of the .num_played field. */
150 AFSI_NUM_PLAYED_OFFSET = 16,
151 /** Storage position of the .image_id field. */
152 AFSI_IMAGE_ID_OFFSET = 20,
153 /** Storage position of the .lyrics_id field. */
154 AFSI_LYRICS_ID_OFFSET = 24,
155 /** Storage position of the .audio_format_id field. */
156 AFSI_AUDIO_FORMAT_ID_OFFSET = 28,
157 /** Storage position of the amplification field. */
158 AFSI_AMP_OFFSET = 29,
159 /** 2 bytes reserved space for future usage. */
160 AFSI_AUDIO_FORMAT_UNUSED_OFFSET = 30,
161 /** On-disk storage space needed. */
162 AFSI_SIZE = 32
163 };
164
165 /**
166 * Convert a struct afs_info to an osl object.
167 *
168 * \param afsi Pointer to the audio file info to be converted.
169 * \param obj Result pointer.
170 *
171 * \sa load_afsi().
172 */
173 void save_afsi(struct afs_info *afsi, struct osl_object *obj)
174 {
175 char *buf = obj->data;
176
177 write_u64(buf + AFSI_LAST_PLAYED_OFFSET, afsi->last_played);
178 write_u64(buf + AFSI_ATTRIBUTES_OFFSET, afsi->attributes);
179 write_u32(buf + AFSI_NUM_PLAYED_OFFSET, afsi->num_played);
180 write_u32(buf + AFSI_IMAGE_ID_OFFSET, afsi->image_id);
181 write_u32(buf + AFSI_LYRICS_ID_OFFSET, afsi->lyrics_id);
182 write_u8(buf + AFSI_AUDIO_FORMAT_ID_OFFSET,
183 afsi->audio_format_id);
184 write_u8(buf + AFSI_AMP_OFFSET, afsi->amp);
185 memset(buf + AFSI_AUDIO_FORMAT_UNUSED_OFFSET, 0, 2);
186 }
187
188 /**
189 * Get the audio file selector info struct stored in an osl object.
190 *
191 * \param afsi Points to the audio_file info structure to be filled in.
192 * \param obj The osl object holding the data.
193 *
194 * \return Positive on success, negative on errors. Possible errors: \p E_BAD_AFS.
195 *
196 * \sa save_afsi().
197 */
198 int load_afsi(struct afs_info *afsi, struct osl_object *obj)
199 {
200 char *buf = obj->data;
201 if (obj->size < AFSI_SIZE)
202 return -E_BAD_AFSI;
203 afsi->last_played = read_u64(buf + AFSI_LAST_PLAYED_OFFSET);
204 afsi->attributes = read_u64(buf + AFSI_ATTRIBUTES_OFFSET);
205 afsi->num_played = read_u32(buf + AFSI_NUM_PLAYED_OFFSET);
206 afsi->image_id = read_u32(buf + AFSI_IMAGE_ID_OFFSET);
207 afsi->lyrics_id = read_u32(buf + AFSI_LYRICS_ID_OFFSET);
208 afsi->audio_format_id = read_u8(buf +
209 AFSI_AUDIO_FORMAT_ID_OFFSET);
210 afsi->amp = read_u8(buf + AFSI_AMP_OFFSET);
211 return 1;
212 }
213
214 /** The columns of the audio file table. */
215 enum audio_file_table_columns {
216 /** The hash on the content of the audio file. */
217 AFTCOL_HASH,
218 /** The full path in the filesystem. */
219 AFTCOL_PATH,
220 /** The audio file selector info. */
221 AFTCOL_AFSI,
222 /** The audio format handler info. */
223 AFTCOL_AFHI,
224 /** The chunk table info and the chunk table of the audio file. */
225 AFTCOL_CHUNKS,
226 /** The number of columns of this table. */
227 NUM_AFT_COLUMNS
228 };
229
230 /**
231 * Compare two osl objects pointing to hash values.
232 *
233 * \param obj1 Pointer to the first hash object.
234 * \param obj2 Pointer to the second hash object.
235 *
236 * \return The values required for an osl compare function.
237 *
238 * \sa osl_compare_func, uint32_compare().
239 */
240 static int aft_hash_compare(const struct osl_object *obj1, const struct osl_object *obj2)
241 {
242 return hash_compare((HASH_TYPE *)obj1->data, (HASH_TYPE *)obj2->data);
243 }
244
245 static struct osl_column_description aft_cols[] = {
246 [AFTCOL_HASH] = {
247 .storage_type = OSL_MAPPED_STORAGE,
248 .storage_flags = OSL_RBTREE | OSL_FIXED_SIZE | OSL_UNIQUE,
249 .name = "hash",
250 .compare_function = aft_hash_compare,
251 .data_size = HASH_SIZE
252 },
253 [AFTCOL_PATH] = {
254 .storage_type = OSL_MAPPED_STORAGE,
255 .storage_flags = OSL_RBTREE | OSL_UNIQUE,
256 .name = "path",
257 .compare_function = string_compare,
258 },
259 [AFTCOL_AFSI] = {
260 .storage_type = OSL_MAPPED_STORAGE,
261 .storage_flags = OSL_FIXED_SIZE,
262 .name = "afs_info",
263 .data_size = AFSI_SIZE
264 },
265 [AFTCOL_AFHI] = {
266 .storage_type = OSL_MAPPED_STORAGE,
267 .name = "afh_info",
268 },
269 [AFTCOL_CHUNKS] = {
270 .storage_type = OSL_DISK_STORAGE,
271 .name = "chunks",
272 }
273 };
274
275 static struct osl_table_description audio_file_table_desc = {
276 .name = "audio_files",
277 .num_columns = NUM_AFT_COLUMNS,
278 .flags = OSL_LARGE_TABLE,
279 .column_descriptions = aft_cols
280 };
281
282 /* We don't want * dot or dot-dot anywhere. */
283 static int verify_dotfile(const char *rest)
284 {
285 /*
286 * The first character was '.', but that has already been discarded, we
287 * now test the rest.
288 */
289 switch (*rest) {
290 case '\0': case '/': /* /foo/. and /foo/./bar are not ok */
291 return -1;
292 case '.': /* path start with /foo/.. */
293 if (rest[1] == '\0' || rest[1] == '/')
294 return -1; /* /foo/.. or /foo/../bar are not ok */
295 /* /foo/..bar is ok */
296 }
297 return 1;
298 }
299
300 /*
301 * We fundamentally don't like some paths: We don't want double slashes or
302 * slashes at the end that can make pathnames ambiguous.
303 */
304 static int verify_path(const char *orig_path, char **resolved_path)
305 {
306 char c;
307 size_t len;
308 char *path;
309
310 if (*orig_path != '/') /* we only accept absolute paths */
311 return -E_BAD_PATH;
312 len = strlen(orig_path);
313 *resolved_path = para_strdup(orig_path);
314 path = *resolved_path;
315 while (len > 1 && path[--len] == '/')
316 path[len] = '\0'; /* remove slash at the end */
317 c = *path++;
318 while (c) {
319 if (c == '/') {
320 c = *path++;
321 switch (c) {
322 case '/': /* double slash */
323 goto bad_path;
324 case '.':
325 if (verify_dotfile(path) < 0)
326 goto bad_path;
327 default:
328 continue;
329 }
330 }
331 c = *path++;
332 }
333 return 1;
334 bad_path:
335 free(*resolved_path);
336 return -E_BAD_PATH;
337 }
338
339 /** The on-disk layout of a afhi struct. */
340 enum afhi_offsets {
341 /** Where the number of seconds is stored. */
342 AFHI_SECONDS_TOTAL_OFFSET = 0,
343 /** Position of the bitrate. */
344 AFHI_BITRATE_OFFSET = 4,
345 /** Position of the frequency. */
346 AFHI_FREQUENCY_OFFSET = 8,
347 /** Location of the audio file header. */
348 AFHI_HEADER_OFFSET_OFFSET = 12,
349 /* Length of the audio file header. Zero means: No header. */
350 AFHI_HEADER_LEN_OFFSET = 16,
351 /** The total number of chunks (4 bytes). */
352 CHUNKS_TOTAL_OFFSET = 20,
353 /** The length of the audio file header (4 bytes). */
354 HEADER_LEN_OFFSET = 24,
355 /** The start of the audio file header (4 bytes). */
356 HEADER_OFFSET_OFFSET = 28,
357 /** The seconds part of the chunk time (4 bytes). */
358 CHUNK_TV_TV_SEC_OFFSET = 32,
359 /** The microseconds part of the chunk time (4 bytes). */
360 CHUNK_TV_TV_USEC_OFFSET = 36,
361 /** Number of channels is stored here. (1 byte) */
362 AFHI_CHANNELS_OFFSET = 40,
363 /** The tag info position. */
364 AFHI_INFO_STRING_OFFSET = 41,
365 /** Minimal on-disk size of a valid afhi struct. */
366 MIN_AFHI_SIZE = 47, /* at least 6 null bytes for techinfo/tags */
367 };
368
369 static unsigned sizeof_afhi_buf(const struct afh_info *afhi)
370 {
371 if (!afhi)
372 return 0;
373 return MIN_AFHI_SIZE
374 + strlen(afhi->techinfo)
375 + strlen(afhi->tags.artist)
376 + strlen(afhi->tags.title)
377 + strlen(afhi->tags.year)
378 + strlen(afhi->tags.album)
379 + strlen(afhi->tags.comment);
380 }
381
382 static void save_afhi(struct afh_info *afhi, char *buf)
383 {
384 char *p;
385
386 if (!afhi)
387 return;
388 write_u32(buf + AFHI_SECONDS_TOTAL_OFFSET, afhi->seconds_total);
389 write_u32(buf + AFHI_BITRATE_OFFSET, afhi->bitrate);
390 write_u32(buf + AFHI_FREQUENCY_OFFSET, afhi->frequency);
391 write_u32(buf + AFHI_HEADER_OFFSET_OFFSET, afhi->header_offset);
392 write_u32(buf + AFHI_HEADER_LEN_OFFSET, afhi->header_len);
393 write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
394 write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
395 write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
396 write_u32(buf + HEADER_OFFSET_OFFSET, afhi->header_offset);
397 write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
398 write_u32(buf + CHUNK_TV_TV_USEC_OFFSET, afhi->chunk_tv.tv_usec);
399 p = buf + AFHI_INFO_STRING_OFFSET;
400 /* The sprintf's below are OK as our caller made sure that buf is large enough */
401 p += sprintf(p, "%s", afhi->techinfo) + 1;
402 p += sprintf(p, "%s", afhi->tags.artist) + 1;
403 p += sprintf(p, "%s", afhi->tags.title) + 1;
404 p += sprintf(p, "%s", afhi->tags.year) + 1;
405 p += sprintf(p, "%s", afhi->tags.album) + 1;
406 sprintf(p, "%s", afhi->tags.comment);
407 }
408
409 static void load_afhi(const char *buf, struct afh_info *afhi)
410 {
411 afhi->seconds_total = read_u32(buf + AFHI_SECONDS_TOTAL_OFFSET);
412 afhi->bitrate = read_u32(buf + AFHI_BITRATE_OFFSET);
413 afhi->frequency = read_u32(buf + AFHI_FREQUENCY_OFFSET);
414 afhi->header_offset = read_u32(buf + AFHI_HEADER_OFFSET_OFFSET);
415 afhi->header_len = read_u32(buf + AFHI_HEADER_LEN_OFFSET);
416 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
417 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
418 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
419 afhi->header_offset = read_u32(buf + HEADER_OFFSET_OFFSET);
420 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
421 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC_OFFSET);
422 afhi->techinfo = (char *)buf + AFHI_INFO_STRING_OFFSET;
423 afhi->tags.artist = afhi->techinfo + strlen(afhi->techinfo) + 1;
424 afhi->tags.title = afhi->tags.artist + strlen(afhi->tags.artist) + 1;
425 afhi->tags.year = afhi->tags.title + strlen(afhi->tags.title) + 1;
426 afhi->tags.album = afhi->tags.year + strlen(afhi->tags.year) + 1;
427 afhi->tags.comment = afhi->tags.album + strlen(afhi->tags.album) + 1;
428 }
429
430 static unsigned sizeof_chunk_table(struct afh_info *afhi)
431 {
432 if (!afhi)
433 return 0;
434 return 4 * (afhi->chunks_total + 1);
435 }
436
437 static void save_chunk_table(struct afh_info *afhi, char *buf)
438 {
439 int i;
440
441 for (i = 0; i <= afhi->chunks_total; i++)
442 write_u32(buf + 4 * i, afhi->chunk_table[i]);
443 }
444
445 static void load_chunk_table(struct afh_info *afhi, char *buf)
446 {
447 int i;
448
449 afhi->chunk_table = para_malloc(sizeof_chunk_table(afhi));
450 for (i = 0; i <= afhi->chunks_total; i++)
451 afhi->chunk_table[i] = read_u32(buf + 4 * i);
452 }
453
454 /**
455 * Get the row of the audio file table corresponding to the given path.
456 *
457 * \param path The full path of the audio file.
458 * \param row Result pointer.
459 *
460 * \return Standard.
461 */
462 int aft_get_row_of_path(const char *path, struct osl_row **row)
463 {
464 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
465
466 return osl(osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row));
467 }
468
469 /**
470 * Get the row of the audio file table corresponding to the given hash value.
471 *
472 * \param hash The hash value of the desired audio file.
473 * \param row Result pointer.
474 *
475 * \return Standard.
476 */
477 static int aft_get_row_of_hash(HASH_TYPE *hash, struct osl_row **row)
478 {
479 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
480 return osl(osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row));
481 }
482
483 /**
484 * Get the osl object holding the audio file selector info of a row.
485 *
486 * \param row Pointer to a row in the audio file table.
487 * \param obj Result pointer.
488 *
489 * \return Standard.
490 */
491 int get_afsi_object_of_row(const struct osl_row *row, struct osl_object *obj)
492 {
493 return osl(osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj));
494 }
495
496 /**
497 * Get the osl object holding the audio file selector info, given a path.
498 *
499 *
500 * \param path The full path of the audio file.
501 * \param obj Result pointer.
502 *
503 * \return Positive on success, negative on errors.
504 */
505 static int get_afsi_object_of_path(const char *path, struct osl_object *obj)
506 {
507 struct osl_row *row;
508 int ret = aft_get_row_of_path(path, &row);
509 if (ret < 0)
510 return ret;
511 return get_afsi_object_of_row(row, obj);
512 }
513
514 /**
515 * Get the audio file selector info, given a row of the audio file table.
516 *
517 * \param row Pointer to a row in the audio file table.
518 * \param afsi Result pointer.
519 *
520 * \return Positive on success, negative on errors.
521 */
522 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
523 {
524 struct osl_object obj;
525 int ret = get_afsi_object_of_row(row, &obj);
526 if (ret < 0)
527 return ret;
528 return load_afsi(afsi, &obj);
529 }
530
531 /**
532 * Get the audio file selector info, given the path of an audio table.
533 *
534 * \param path The full path of the audio file.
535 * \param afsi Result pointer.
536 *
537 * \return Positive on success, negative on errors.
538 */
539 int get_afsi_of_path(const char *path, struct afs_info *afsi)
540 {
541 struct osl_object obj;
542 int ret = get_afsi_object_of_path(path, &obj);
543 if (ret < 0)
544 return ret;
545 return load_afsi(afsi, &obj);
546 }
547
548 /**
549 * Get the path of an audio file, given a row of the audio file table.
550 *
551 * \param row Pointer to a row in the audio file table.
552 * \param path Result pointer.
553 *
554 * The result is a pointer to mmapped data. The caller must not attempt
555 * to free it.
556 *
557 * \return Standard.
558 */
559 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
560 {
561 struct osl_object path_obj;
562 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_PATH,
563 &path_obj));
564 if (ret < 0)
565 return ret;
566 *path = path_obj.data;
567 return 1;
568 }
569
570 /**
571 * Get the object containing the hash value of an audio file, given a row.
572 *
573 * \param row Pointer to a row of the audio file table.
574 * \param obj Result pointer.
575 *
576 * \return The return value of the underlying call to osl_get_object().
577 *
578 * \sa get_hash_of_row().
579 */
580 static int get_hash_object_of_aft_row(const struct osl_row *row,
581 struct osl_object *obj)
582 {
583 return osl(osl_get_object(audio_file_table, row, AFTCOL_HASH, obj));
584 }
585
586 /**
587 * Get the hash value of an audio file, given a row of the audio file table.
588 *
589 * \param row Pointer to a row of the audio file table.
590 * \param hash Result pointer.
591 *
592 * \a hash points to mapped data and must not be freed by the caller.
593 *
594 * \return The return value of the underlying call to
595 * get_hash_object_of_aft_row().
596 */
597 static int get_hash_of_row(const struct osl_row *row, HASH_TYPE **hash)
598 {
599 struct osl_object obj;
600 int ret = get_hash_object_of_aft_row(row, &obj);
601
602 if (ret < 0)
603 return ret;
604 *hash = obj.data;
605 return 1;
606 }
607
608 /**
609 * Get the audio format handler info, given a row of the audio file table.
610 *
611 * \param row Pointer to a row of the audio file table.
612 * \param afhi Result pointer.
613 *
614 * \return The return value of the underlying call to osl_get_object().
615 *
616 * \sa get_chunk_table_of_row().
617 */
618 int get_afhi_of_row(const struct osl_row *row, struct afh_info *afhi)
619 {
620 struct osl_object obj;
621 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_AFHI,
622 &obj));
623 if (ret < 0)
624 return ret;
625 load_afhi(obj.data, afhi);
626 return 1;
627 }
628
629 /* returns shmid on success */
630 static int save_afd(struct audio_file_data *afd)
631 {
632 size_t size = sizeof(*afd) + sizeof_chunk_table(&afd->afhi);
633 int shmid, ret = shm_new(size);
634 void *shm_afd;
635 char *buf;
636
637 if (ret < 0)
638 return ret;
639 shmid = ret;
640 ret = shm_attach(shmid, ATTACH_RW, &shm_afd);
641 if (ret < 0)
642 goto err;
643 *(struct audio_file_data *)shm_afd = *afd;
644 buf = shm_afd;
645 buf += sizeof(*afd);
646 save_chunk_table(&afd->afhi, buf);
647 shm_detach(shm_afd);
648 return shmid;
649 err:
650 shm_destroy(shmid);
651 return ret;
652 }
653
654 /**
655 * Extract a afd stored in a shared memory area.
656 *
657 * Attach the shared memory area given by \a shmid, load the audio file data
658 * stored therein and detach the area afterwards. Called by vss, after
659 * receiving a positive response to the request for the next audio file.
660 +
661 * \param shmid The identifier of the shared memory area containing the afd.
662 * \param afd Result pointer.
663 *
664 * \return Standard.
665 */
666 int load_afd(int shmid, struct audio_file_data *afd)
667 {
668 void *shm_afd;
669 char *buf;
670 int ret;
671
672 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
673 if (ret < 0)
674 return ret;
675 *afd = *(struct audio_file_data *)shm_afd;
676 buf = shm_afd;
677 buf += sizeof(*afd);
678 load_chunk_table(&afd->afhi, buf);
679 shm_detach(shm_afd);
680 return 1;
681 }
682
683 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
684 time_t current_time, enum ls_listing_mode lm)
685 {
686 struct tm t;
687
688 if (!localtime_r((time_t *)seconds, &t))
689 return -E_LOCALTIME;
690 if (lm == LS_MODE_MBOX) {
691 if (!strftime(buf, size, "%c", &t))
692 return -E_STRFTIME;
693 return 1;
694 }
695 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
696 if (!strftime(buf, size, "%b %e %k:%M", &t))
697 return -E_STRFTIME;
698 return 1;
699 }
700 if (!strftime(buf, size, "%b %e %Y", &t))
701 return -E_STRFTIME;
702 return 1;
703 }
704
705 /** Compute the number of (decimal) digits of a number. */
706 #define GET_NUM_DIGITS(x, num) { \
707 typeof((x)) _tmp = PARA_ABS(x); \
708 *num = 1; \
709 if ((_tmp)) \
710 while ((_tmp) > 9) { \
711 (_tmp) /= 10; \
712 (*num)++; \
713 } \
714 }
715
716 static short unsigned get_duration_width(int seconds)
717 {
718 short unsigned width;
719 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
720
721 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
722 return 4 + (mins > 9);
723 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
724 GET_NUM_DIGITS(hours, &width);
725 return width + 6;
726 }
727
728 static void get_duration_buf(int seconds, char *buf, struct ls_options *opts)
729 {
730 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
731 short unsigned max_width;
732
733 if (!hours) { /* m:ss or mm:ss */
734 max_width = opts->mode == LS_MODE_LONG?
735 opts->widths.duration_width : 4;
736 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
737 } else { /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
738 max_width = opts->mode == LS_MODE_LONG?
739 opts->widths.duration_width : 7;
740 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
741 seconds % 60);
742 }
743 }
744
745
746 static int write_attribute_items(struct para_buffer *b,
747 const char *att_bitmap, struct afs_info *afsi)
748 {
749 char *att_text;
750 int ret;
751
752 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_BITMAP, "%s\n", att_bitmap);
753 if (ret < 0)
754 return ret;
755 ret = get_attribute_text(&afsi->attributes, " ", &att_text);
756 if (ret < 0)
757 return ret;
758 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_TXT, "%s\n", att_text);
759 free(att_text);
760 return ret;
761 }
762
763 static int write_lyrics_items(struct para_buffer *b, struct afs_info *afsi)
764 {
765 char *lyrics_name;
766 int ret;
767
768 ret = WRITE_STATUS_ITEM(b, SI_LYRICS_ID, "%u\n", afsi->lyrics_id);
769 if (ret < 0)
770 return ret;
771 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
772 return WRITE_STATUS_ITEM(b, SI_LYRICS_NAME, "%s\n", lyrics_name?
773 lyrics_name : "(none)");
774 }
775
776 static int write_image_items(struct para_buffer *b, struct afs_info *afsi)
777 {
778 char *image_name;
779 int ret;
780
781 ret = WRITE_STATUS_ITEM(b, SI_IMAGE_ID, "%u\n", afsi->image_id);
782 if (ret < 0)
783 return ret;
784 img_get_name_by_id(afsi->image_id, &image_name);
785 return WRITE_STATUS_ITEM(b, SI_IMAGE_NAME, "%s\n", image_name?
786 image_name : "(none)");
787 }
788
789 static int write_filename_items(struct para_buffer *b, const char *path,
790 unsigned flags)
791 {
792 char *val;
793 int ret;
794
795 if (!(flags & LS_FLAG_FULL_PATH))
796 return WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", path);
797 ret = WRITE_STATUS_ITEM(b, SI_PATH, "%s\n", path);
798 if (ret < 0)
799 return ret;
800 val = para_basename(path);
801 ret = WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", val? val : "");
802 if (ret < 0)
803 return ret;
804 val = para_dirname(path);
805 ret = WRITE_STATUS_ITEM(b, SI_DIRECTORY, "%s\n", val? val : "");
806 free(val);
807 return ret;
808 }
809
810 static int print_chunk_table(struct ls_data *d, struct para_buffer *b)
811 {
812 struct osl_object chunk_table_obj;
813 struct osl_row *aft_row;
814 int ret, i;
815 char *buf;
816
817 ret = aft_get_row_of_hash(d->hash, &aft_row);
818 if (ret < 0)
819 return ret;
820 ret = osl_open_disk_object(audio_file_table, aft_row,
821 AFTCOL_CHUNKS, &chunk_table_obj);
822 if (ret < 0)
823 return ret;
824 ret = para_printf(b, "%s\n"
825 "chunk_time: %lu:%lu\nchunk_offsets: ",
826 d->path,
827 (long unsigned) d->afhi.chunk_tv.tv_sec,
828 (long unsigned) d->afhi.chunk_tv.tv_usec
829 );
830 if (ret < 0)
831 goto out;
832 buf = chunk_table_obj.data;
833 for (i = 0; i <= d->afhi.chunks_total; i++) {
834 ret = para_printf(b, "%u ", (unsigned) read_u32(buf + 4 * i));
835 if (ret < 0)
836 goto out;
837 }
838 ret = para_printf(b, "\n");
839 out:
840 osl_close_disk_object(&chunk_table_obj);
841 return ret;
842 }
843
844 static int write_score(struct para_buffer *b, struct ls_data *d,
845 struct ls_options *opts)
846 {
847 if (!(opts->flags & LS_FLAG_ADMISSIBLE_ONLY)) /* no score*/
848 return 0;
849 return WRITE_STATUS_ITEM(b, SI_SCORE, "%li\n", d->score);
850 }
851
852 static int print_list_item(struct ls_data *d, struct ls_options *opts,
853 struct para_buffer *b, time_t current_time)
854 {
855 int ret;
856 char att_buf[65];
857 char last_played_time[30];
858 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
859 struct afs_info *afsi = &d->afsi;
860 struct afh_info *afhi = &d->afhi;
861 char asc_hash[2 * HASH_SIZE + 1];
862
863 if (opts->mode == LS_MODE_SHORT) {
864 ret = para_printf(b, "%s\n", d->path);
865 goto out;
866 }
867 if (opts->mode == LS_MODE_CHUNKS) {
868 ret = print_chunk_table(d, b);
869 goto out;
870 }
871 get_attribute_bitmap(&afsi->attributes, att_buf);
872 if (opts->flags & LS_FLAG_UNIXDATE)
873 sprintf(last_played_time, "%llu",
874 (long long unsigned)afsi->last_played);
875 else {
876 ret = get_local_time(&afsi->last_played, last_played_time,
877 sizeof(last_played_time), current_time, opts->mode);
878 if (ret < 0)
879 goto out;
880 }
881 get_duration_buf(afhi->seconds_total, duration_buf, opts);
882 if (opts->mode == LS_MODE_LONG) {
883 struct ls_widths *w = &opts->widths;
884 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY) {
885 ret = para_printf(b, "%*li ",
886 opts->widths.score_width, d->score);
887 if (ret < 0)
888 goto out;
889 }
890 ret = para_printf(b,
891 "%s " /* attributes */
892 "%*u " /* amp */
893 "%*d " /* image_id */
894 "%*d " /* lyrics_id */
895 "%*d " /* bitrate */
896 "%s " /* audio format */
897 "%*d " /* frequency */
898 "%d " /* channels */
899 "%s " /* duration */
900 "%*d " /* num_played */
901 "%s " /* last_played */
902 "%s\n", /* path */
903 att_buf,
904 w->amp_width, afsi->amp,
905 w->image_id_width, afsi->image_id,
906 w->lyrics_id_width, afsi->lyrics_id,
907 w->bitrate_width, afhi->bitrate,
908 audio_format_name(afsi->audio_format_id),
909 w->frequency_width, afhi->frequency,
910 afhi->channels,
911 duration_buf,
912 w->num_played_width, afsi->num_played,
913 last_played_time,
914 d->path
915 );
916 goto out;
917 }
918 if (opts->mode == LS_MODE_MBOX) {
919 const char *bn = para_basename(d->path);
920 ret = para_printf(b,
921 "From foo@localhost %s\n"
922 "Received: from\nTo: bar\nFrom: a\n"
923 "Subject: %s\n\n",
924 last_played_time,
925 bn? bn : "?");
926 if (ret < 0)
927 goto out;
928 }
929 ret = write_filename_items(b, d->path, opts->flags);
930 if (ret < 0)
931 goto out;
932 ret = write_score(b, d, opts);
933 if (ret < 0)
934 goto out;
935 ret = write_attribute_items(b, att_buf, afsi);
936 if (ret < 0)
937 goto out;
938 ret = write_image_items(b, afsi);
939 if (ret < 0)
940 goto out;
941 ret = write_lyrics_items(b, afsi);
942 if (ret < 0)
943 goto out;
944 hash_to_asc(d->hash, asc_hash);
945 ret = WRITE_STATUS_ITEM(b, SI_HASH, "%s\n", asc_hash);
946 if (ret < 0)
947 goto out;
948 ret = WRITE_STATUS_ITEM(b, SI_BITRATE, "%dkbit/s\n", afhi->bitrate);
949 if (ret < 0)
950 goto out;
951 ret = WRITE_STATUS_ITEM(b, SI_FORMAT, "%s\n",
952 audio_format_name(afsi->audio_format_id));
953 if (ret < 0)
954 goto out;
955 ret = WRITE_STATUS_ITEM(b, SI_FREQUENCY, "%dHz\n", afhi->frequency);
956 if (ret < 0)
957 goto out;
958 ret = WRITE_STATUS_ITEM(b, SI_CHANNELS, "%d\n", afhi->channels);
959 if (ret < 0)
960 goto out;
961 ret = WRITE_STATUS_ITEM(b, SI_DURATION, "%s\n", duration_buf);
962 if (ret < 0)
963 goto out;
964 ret = WRITE_STATUS_ITEM(b, SI_SECONDS_TOTAL, "%lu\n",
965 afhi->seconds_total);
966 if (ret < 0)
967 goto out;
968 ret = WRITE_STATUS_ITEM(b, SI_LAST_PLAYED, "%s\n", last_played_time);
969 if (ret < 0)
970 goto out;
971 ret = WRITE_STATUS_ITEM(b, SI_NUM_PLAYED, "%d\n", afsi->num_played);
972 if (ret < 0)
973 goto out;
974 ret = WRITE_STATUS_ITEM(b, SI_AMPLIFICATION, "%u\n", afsi->amp);
975 if (ret < 0)
976 goto out;
977 ret = WRITE_STATUS_ITEM(b, SI_CHUNK_TIME, "%lu\n",
978 tv2ms(&afhi->chunk_tv));
979 if (ret < 0)
980 goto out;
981 ret = WRITE_STATUS_ITEM(b, SI_NUM_CHUNKS, "%lu\n",
982 afhi->chunks_total);
983 if (ret < 0)
984 goto out;
985 ret = WRITE_STATUS_ITEM(b, SI_TECHINFO, "%s\n", afhi->techinfo);
986 if (ret < 0)
987 goto out;
988 ret = WRITE_STATUS_ITEM(b, SI_ARTIST, "%s\n", afhi->tags.artist);
989 if (ret < 0)
990 goto out;
991 ret = WRITE_STATUS_ITEM(b, SI_TITLE, "%s\n", afhi->tags.title);
992 if (ret < 0)
993 goto out;
994 ret = WRITE_STATUS_ITEM(b, SI_YEAR, "%s\n", afhi->tags.year);
995 if (ret < 0)
996 goto out;
997 ret = WRITE_STATUS_ITEM(b, SI_ALBUM, "%s\n", afhi->tags.album);
998 if (ret < 0)
999 goto out;
1000 ret = WRITE_STATUS_ITEM(b, SI_COMMENT, "%s\n", afhi->tags.comment);
1001 if (ret < 0)
1002 goto out;
1003 if (opts->mode == LS_MODE_MBOX) {
1004 struct osl_object lyrics_def;
1005 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
1006 if (lyrics_def.data) {
1007 ret = para_printf(b, "Lyrics:\n~~~~~~~\n%s",
1008 (char *)lyrics_def.data);
1009 osl_close_disk_object(&lyrics_def);
1010 }
1011 }
1012 out:
1013 return ret;
1014 }
1015
1016 static int make_status_items(struct audio_file_data *afd,
1017 struct afs_info *afsi, char *path, long score,
1018 HASH_TYPE *hash)
1019 {
1020 struct ls_data d = {
1021 .afhi = afd->afhi,
1022 .afsi = *afsi,
1023 .path = path,
1024 .score = score,
1025 .hash = hash
1026 };
1027 struct ls_options opts = {
1028 .flags = LS_FLAG_FULL_PATH | LS_FLAG_ADMISSIBLE_ONLY,
1029 .mode = LS_MODE_VERBOSE,
1030 };
1031 struct para_buffer pb = {.max_size = SHMMAX - 1};
1032 time_t current_time;
1033 int ret;
1034
1035 time(&current_time);
1036 ret = print_list_item(&d, &opts, &pb, current_time);
1037 if (ret < 0)
1038 return ret;
1039 free(status_items);
1040 status_items = pb.buf;
1041 memset(&pb, 0, sizeof(pb));
1042 pb.max_size = SHMMAX - 1;
1043 pb.flags = PBF_SIZE_PREFIX;
1044 ret = print_list_item(&d, &opts, &pb, current_time);
1045 if (ret < 0) {
1046 free(status_items);
1047 status_items = NULL;
1048 return ret;
1049 }
1050 free(parser_friendly_status_items);
1051 parser_friendly_status_items = pb.buf;
1052 return 1;
1053 }
1054
1055 /**
1056 * Mmap the given audio file and update statistics.
1057 *
1058 * \param aft_row Determines the audio file to be opened and updated.
1059 * \param score The score of the audio file.
1060 * \param afd Result pointer.
1061 *
1062 * On success, the numplayed field of the audio file selector info is increased
1063 * and the lastplayed time is set to the current time. Finally, the score of
1064 * the audio file is updated.
1065 *
1066 * \return Positive shmid on success, negative on errors.
1067 */
1068 int open_and_update_audio_file(struct osl_row *aft_row, long score,
1069 struct audio_file_data *afd)
1070 {
1071 HASH_TYPE *aft_hash, file_hash[HASH_SIZE];
1072 struct osl_object afsi_obj;
1073 struct afs_info old_afsi, new_afsi;
1074 int ret = get_hash_of_row(aft_row, &aft_hash);
1075 struct afsi_change_event_data aced;
1076 struct osl_object map, chunk_table_obj;
1077 char *path;
1078
1079 if (ret < 0)
1080 return ret;
1081 ret = get_audio_file_path_of_row(aft_row, &path);
1082 if (ret < 0)
1083 return ret;
1084 PARA_NOTICE_LOG("%s\n", path);
1085 ret = get_afsi_object_of_row(aft_row, &afsi_obj);
1086 if (ret < 0)
1087 return ret;
1088 ret = load_afsi(&old_afsi, &afsi_obj);
1089 if (ret < 0)
1090 return ret;
1091 ret = get_afhi_of_row(aft_row, &afd->afhi);
1092 if (ret < 0)
1093 return ret;
1094 afd->afhi.chunk_table = NULL;
1095 ret = osl_open_disk_object(audio_file_table, aft_row,
1096 AFTCOL_CHUNKS, &chunk_table_obj);
1097 if (ret < 0)
1098 goto err;
1099 ret = mmap_full_file(path, O_RDONLY, &map.data,
1100 &map.size, &afd->fd);
1101 if (ret < 0)
1102 goto err;
1103 hash_function(map.data, map.size, file_hash);
1104 ret = hash_compare(file_hash, aft_hash);
1105 para_munmap(map.data, map.size);
1106 if (ret) {
1107 ret = -E_HASH_MISMATCH;
1108 goto err;
1109 }
1110 new_afsi = old_afsi;
1111 new_afsi.num_played++;
1112 new_afsi.last_played = time(NULL);
1113 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
1114
1115 load_chunk_table(&afd->afhi, chunk_table_obj.data);
1116 ret = make_status_items(afd, &old_afsi, path, score, file_hash);
1117 if (ret < 0)
1118 goto err;
1119 aced.aft_row = aft_row;
1120 aced.old_afsi = &old_afsi;
1121 afs_event(AFSI_CHANGE, NULL, &aced);
1122 ret = save_afd(afd);
1123 err:
1124 free(afd->afhi.chunk_table);
1125 osl_close_disk_object(&chunk_table_obj);
1126 return ret;
1127 }
1128
1129 static int ls_audio_format_compare(const void *a, const void *b)
1130 {
1131 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1132 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
1133 }
1134
1135 static int ls_duration_compare(const void *a, const void *b)
1136 {
1137 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1138 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
1139 }
1140
1141 static int ls_bitrate_compare(const void *a, const void *b)
1142 {
1143 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1144 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
1145 }
1146
1147 static int ls_lyrics_id_compare(const void *a, const void *b)
1148 {
1149 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1150 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
1151 }
1152
1153 static int ls_image_id_compare(const void *a, const void *b)
1154 {
1155 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1156 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
1157 }
1158
1159 static int ls_channels_compare(const void *a, const void *b)
1160 {
1161 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1162 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
1163 }
1164
1165 static int ls_frequency_compare(const void *a, const void *b)
1166 {
1167 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1168 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
1169 }
1170
1171 static int ls_num_played_compare(const void *a, const void *b)
1172 {
1173 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1174 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1175 }
1176
1177 static int ls_last_played_compare(const void *a, const void *b)
1178 {
1179 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1180 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1181 }
1182
1183 static int ls_score_compare(const void *a, const void *b)
1184 {
1185 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1186 return NUM_COMPARE(d1->score, d2->score);
1187 }
1188
1189 static int ls_path_compare(const void *a, const void *b)
1190 {
1191 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1192 return strcmp(d1->path, d2->path);
1193 }
1194
1195 static int sort_matching_paths(struct ls_options *options)
1196 {
1197 size_t nmemb = options->num_matching_paths;
1198 size_t size = sizeof(*options->data_ptr);
1199 int (*compar)(const void *, const void *);
1200 int i;
1201
1202 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1203 for (i = 0; i < nmemb; i++)
1204 options->data_ptr[i] = options->data + i;
1205
1206 /* In these cases the array is already sorted */
1207 if (options->sorting == LS_SORT_BY_PATH
1208 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1209 && (options->flags & LS_FLAG_FULL_PATH))
1210 return 1;
1211 if (options->sorting == LS_SORT_BY_SCORE &&
1212 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1213 return 1;
1214
1215 switch (options->sorting) {
1216 case LS_SORT_BY_PATH:
1217 compar = ls_path_compare; break;
1218 case LS_SORT_BY_SCORE:
1219 compar = ls_score_compare; break;
1220 case LS_SORT_BY_LAST_PLAYED:
1221 compar = ls_last_played_compare; break;
1222 case LS_SORT_BY_NUM_PLAYED:
1223 compar = ls_num_played_compare; break;
1224 case LS_SORT_BY_FREQUENCY:
1225 compar = ls_frequency_compare; break;
1226 case LS_SORT_BY_CHANNELS:
1227 compar = ls_channels_compare; break;
1228 case LS_SORT_BY_IMAGE_ID:
1229 compar = ls_image_id_compare; break;
1230 case LS_SORT_BY_LYRICS_ID:
1231 compar = ls_lyrics_id_compare; break;
1232 case LS_SORT_BY_BITRATE:
1233 compar = ls_bitrate_compare; break;
1234 case LS_SORT_BY_DURATION:
1235 compar = ls_duration_compare; break;
1236 case LS_SORT_BY_AUDIO_FORMAT:
1237 compar = ls_audio_format_compare; break;
1238 default:
1239 return -E_BAD_SORT;
1240 }
1241 qsort(options->data_ptr, nmemb, size, compar);
1242 return 1;
1243 }
1244
1245 /* row is either an aft_row or a row of the score table */
1246 /* TODO: Only compute widths if we need them */
1247 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1248 {
1249 int ret, i;
1250 struct ls_options *options = ls_opts;
1251 struct ls_data *d;
1252 struct ls_widths *w;
1253 unsigned short num_digits;
1254 unsigned tmp;
1255 struct osl_row *aft_row;
1256 long score;
1257 char *path;
1258
1259 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1260 ret = get_score_and_aft_row(row, &score, &aft_row);
1261 if (ret < 0)
1262 return ret;
1263 } else
1264 aft_row = row;
1265 ret = get_audio_file_path_of_row(aft_row, &path);
1266 if (ret < 0)
1267 return ret;
1268 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1269 char *p = strrchr(path, '/');
1270 if (p)
1271 path = p + 1;
1272 }
1273 if (options->num_patterns) {
1274 for (i = 0; i < options->num_patterns; i++) {
1275 ret = fnmatch(options->patterns[i], path, 0);
1276 if (!ret)
1277 break;
1278 if (ret == FNM_NOMATCH)
1279 continue;
1280 return -E_FNMATCH;
1281 }
1282 if (i >= options->num_patterns) /* no match */
1283 return 1;
1284 }
1285 tmp = options->num_matching_paths++;
1286 if (options->num_matching_paths > options->array_size) {
1287 options->array_size++;
1288 options->array_size *= 2;
1289 options->data = para_realloc(options->data, options->array_size
1290 * sizeof(*options->data));
1291 }
1292 d = options->data + tmp;
1293 ret = get_afsi_of_row(aft_row, &d->afsi);
1294 if (ret < 0)
1295 return ret;
1296 ret = get_afhi_of_row(aft_row, &d->afhi);
1297 if (ret < 0)
1298 return ret;
1299 d->path = path;
1300 ret = get_hash_of_row(aft_row, &d->hash);
1301 if (ret < 0)
1302 goto err;
1303 w = &options->widths;
1304 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1305 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1306 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1307 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1308 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1309 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1310 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1311 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1312 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1313 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1314 /* get the number of chars to print this amount of time */
1315 num_digits = get_duration_width(d->afhi.seconds_total);
1316 w->duration_width = PARA_MAX(w->duration_width, num_digits);
1317 GET_NUM_DIGITS(d->afsi.amp, &num_digits);
1318 w->amp_width = PARA_MAX(w->amp_width, num_digits);
1319 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1320 GET_NUM_DIGITS(score, &num_digits);
1321 num_digits++; /* add one for the sign (space or "-") */
1322 w->score_width = PARA_MAX(w->score_width, num_digits);
1323 d->score = score;
1324 }
1325 return 1;
1326 err:
1327 return ret;
1328 }
1329
1330 static void com_ls_callback(int fd, const struct osl_object *query)
1331 {
1332 struct ls_options *opts = query->data;
1333 char *p, *pattern_start = (char *)query->data + sizeof(*opts);
1334 struct para_buffer b = {.max_size = SHMMAX,
1335 .flags = (opts->mode == LS_MODE_PARSER)? PBF_SIZE_PREFIX : 0,
1336 .max_size_handler = pass_buffer_as_shm, .private_data = &fd};
1337 int i = 0, ret;
1338 time_t current_time;
1339
1340 if (opts->num_patterns) {
1341 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1342 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1343 opts->patterns[i] = p;
1344 p += strlen(p) + 1;
1345 }
1346 } else
1347 opts->patterns = NULL;
1348 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1349 ret = admissible_file_loop(opts, prepare_ls_row);
1350 else
1351 ret = osl(osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1352 prepare_ls_row));
1353 if (ret < 0)
1354 goto out;
1355 if (!opts->num_matching_paths)
1356 goto out;
1357 ret = sort_matching_paths(opts);
1358 if (ret < 0)
1359 goto out;
1360 time(&current_time);
1361 if (opts->flags & LS_FLAG_REVERSE)
1362 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1363 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1364 if (ret < 0)
1365 goto out;
1366 }
1367 else
1368 for (i = 0; i < opts->num_matching_paths; i++) {
1369 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1370 if (ret < 0)
1371 goto out;
1372 }
1373 out:
1374 if (b.offset)
1375 pass_buffer_as_shm(b.buf, b.offset, &fd);
1376 free(b.buf);
1377 free(opts->data);
1378 free(opts->data_ptr);
1379 free(opts->patterns);
1380 }
1381
1382 /*
1383 * TODO: flags -h (sort by hash)
1384 */
1385 int com_ls(struct rc4_context *rc4c, int argc, char * const * const argv)
1386 {
1387 int i, ret;
1388 unsigned flags = 0;
1389 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1390 enum ls_listing_mode mode = LS_MODE_SHORT;
1391 struct ls_options opts = {.patterns = NULL};
1392 struct osl_object query = {.data = &opts, .size = sizeof(opts)};
1393
1394 for (i = 1; i < argc; i++) {
1395 const char *arg = argv[i];
1396 if (arg[0] != '-')
1397 break;
1398 if (!strcmp(arg, "--")) {
1399 i++;
1400 break;
1401 }
1402 if (!strncmp(arg, "-l", 2)) {
1403 if (!*(arg + 2)) {
1404 mode = LS_MODE_LONG;
1405 continue;
1406 }
1407 if (*(arg + 3))
1408 return -E_AFT_SYNTAX;
1409 switch(*(arg + 2)) {
1410 case 's':
1411 mode = LS_MODE_SHORT;
1412 continue;
1413 case 'l':
1414 mode = LS_MODE_LONG;
1415 continue;
1416 case 'v':
1417 mode = LS_MODE_VERBOSE;
1418 continue;
1419 case 'm':
1420 mode = LS_MODE_MBOX;
1421 continue;
1422 case 'c':
1423 mode = LS_MODE_CHUNKS;
1424 continue;
1425 case 'p':
1426 mode = LS_MODE_PARSER;
1427 continue;
1428 default:
1429 return -E_AFT_SYNTAX;
1430 }
1431 }
1432 if (!strcmp(arg, "-p")) {
1433 flags |= LS_FLAG_FULL_PATH;
1434 continue;
1435 }
1436 if (!strcmp(arg, "-a")) {
1437 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1438 continue;
1439 }
1440 if (!strcmp(arg, "-r")) {
1441 flags |= LS_FLAG_REVERSE;
1442 continue;
1443 }
1444 if (!strcmp(arg, "-d")) {
1445 flags |= LS_FLAG_UNIXDATE;
1446 continue;
1447 }
1448 if (!strncmp(arg, "-s", 2)) {
1449 if (!*(arg + 2) || *(arg + 3))
1450 return -E_AFT_SYNTAX;
1451 switch(*(arg + 2)) {
1452 case 'p':
1453 sort = LS_SORT_BY_PATH;
1454 continue;
1455 case 's': /* -ss implies -a */
1456 sort = LS_SORT_BY_SCORE;
1457 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1458 continue;
1459 case 'l':
1460 sort = LS_SORT_BY_LAST_PLAYED;
1461 continue;
1462 case 'n':
1463 sort = LS_SORT_BY_NUM_PLAYED;
1464 continue;
1465 case 'f':
1466 sort = LS_SORT_BY_FREQUENCY;
1467 continue;
1468 case 'c':
1469 sort = LS_SORT_BY_CHANNELS;
1470 continue;
1471 case 'i':
1472 sort = LS_SORT_BY_IMAGE_ID;
1473 continue;
1474 case 'y':
1475 sort = LS_SORT_BY_LYRICS_ID;
1476 continue;
1477 case 'b':
1478 sort = LS_SORT_BY_BITRATE;
1479 continue;
1480 case 'd':
1481 sort = LS_SORT_BY_DURATION;
1482 continue;
1483 case 'a':
1484 sort = LS_SORT_BY_AUDIO_FORMAT;
1485 continue;
1486 default:
1487 return -E_AFT_SYNTAX;
1488 }
1489 }
1490 return -E_AFT_SYNTAX;
1491 }
1492 opts.flags = flags;
1493 opts.sorting = sort;
1494 opts.mode = mode;
1495 opts.num_patterns = argc - i;
1496 ret = send_option_arg_callback_request(&query, opts.num_patterns,
1497 argv + i, com_ls_callback, rc4_send_result, rc4c);
1498 return ret;
1499 }
1500
1501 /**
1502 * Call the given function for each file in the audio file table.
1503 *
1504 * \param private_data An arbitrary data pointer, passed to \a func.
1505 * \param func The custom function to be called.
1506 *
1507 * \return Standard.
1508 */
1509 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1510 {
1511 return osl(osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1512 func));
1513 }
1514
1515 static struct osl_row *find_hash_sister(HASH_TYPE *hash)
1516 {
1517 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
1518 struct osl_row *row;
1519
1520 osl_get_row(audio_file_table, AFTCOL_HASH, &obj, &row);
1521 return row;
1522 }
1523
1524 /** The format of the data stored by save_audio_file_data(). */
1525 enum com_add_buffer_offsets {
1526 /** afhi (if present) starts here. */
1527 CAB_AFHI_OFFSET_POS = 0,
1528 /** Start of the chunk table (if present). */
1529 CAB_CHUNKS_OFFSET_POS = 2,
1530 /** Audio format id. */
1531 CAB_AUDIO_FORMAT_OFFSET = 4,
1532 /** Flags given to the add command. */
1533 CAB_FLAGS_OFFSET = 5,
1534 /** The hash of the audio file being added. */
1535 CAB_HASH_OFFSET = 9,
1536 /** Start of the path of the audio file. */
1537 CAB_PATH_OFFSET = (CAB_HASH_OFFSET + HASH_SIZE),
1538 };
1539
1540 /*
1541 * Store the given data to a single buffer. Doesn't need the audio file selector
1542 * info struct as the server knows it as well.
1543 *
1544 * It's OK to call this with afhi == NULL. In this case, the audio format
1545 * handler info won't be stored in the buffer.
1546 */
1547 static void save_add_callback_buffer(HASH_TYPE *hash, const char *path,
1548 struct afh_info *afhi, uint32_t flags,
1549 uint8_t audio_format_num, struct osl_object *obj)
1550 {
1551 size_t path_len = strlen(path) + 1;
1552 size_t afhi_size = sizeof_afhi_buf(afhi);
1553 size_t size = CAB_PATH_OFFSET + path_len + afhi_size
1554 + sizeof_chunk_table(afhi);
1555 char *buf = para_malloc(size);
1556 uint16_t pos;
1557
1558 write_u8(buf + CAB_AUDIO_FORMAT_OFFSET, audio_format_num);
1559 write_u32(buf + CAB_FLAGS_OFFSET, flags);
1560
1561 memcpy(buf + CAB_HASH_OFFSET, hash, HASH_SIZE);
1562 strcpy(buf + CAB_PATH_OFFSET, path);
1563
1564 pos = CAB_PATH_OFFSET + path_len;
1565 PARA_DEBUG_LOG("size: %zu, afhi starts at %d\n", size, pos);
1566 PARA_DEBUG_LOG("last afhi byte: %p, pos %zu\n", buf + pos + afhi_size - 1,
1567 pos + afhi_size - 1);
1568 write_u16(buf + CAB_AFHI_OFFSET_POS, pos);
1569 save_afhi(afhi, buf + pos);
1570
1571 pos += afhi_size;
1572 PARA_DEBUG_LOG("size: %zu, chunks start at %d\n", size, pos);
1573 write_u16(buf + CAB_CHUNKS_OFFSET_POS, pos);
1574 if (afhi)
1575 save_chunk_table(afhi, buf + pos);
1576 PARA_DEBUG_LOG("last byte in buf: %p\n", buf + size - 1);
1577 obj->data = buf;
1578 obj->size = size;
1579 }
1580
1581 /*
1582
1583 Overview of the add command.
1584
1585 Input: What was passed to the callback by the command handler.
1586 ~~~~~~
1587 HS: Hash sister. Whether an audio file with identical hash
1588 already exists in the osl database.
1589
1590 PB: Path brother. Whether a file with the given path exists
1591 in the table.
1592
1593 F: Force flag given. Whether add was called with -f.
1594
1595 output: Action performed by the callback.
1596 ~~~~~~~
1597 AFHI: Whether afhi and chunk table are computed and sent.
1598 ACTION: Table modifications to be done by the callback.
1599
1600 +----+----+---+------+---------------------------------------------------+
1601 | HS | PB | F | AFHI | ACTION
1602 +----+----+---+------+---------------------------------------------------+
1603 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1604 | | update path, keep afsi
1605 +----+----+---+------+---------------------------------------------------+
1606 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1607 | | otherwise: remove PB, HS: update path, keep afhi,
1608 | | afsi.
1609 +----+----+---+------+---------------------------------------------------+
1610 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1611 | | HS, keep afsi
1612 +----+----+---+------+---------------------------------------------------+
1613 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1614 +----+----+---+------+---------------------------------------------------+
1615 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1616 | | (force has no effect)
1617 +----+----+---+------+---------------------------------------------------+
1618 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1619 +----+----+---+------+---------------------------------------------------+
1620 | N | N | Y | Y | (new file) create new entry (force has no effect)
1621 +----+----+---+------+---------------------------------------------------+
1622 | N | N | N | Y | (new file) create new entry
1623 +----+----+---+------+---------------------------------------------------+
1624
1625 Notes:
1626
1627 afhi <=> force or no HS
1628 F => AFHI
1629
1630 */
1631
1632 /** Flags passed to the add command. */
1633 enum com_add_flags {
1634 /** Skip paths that exist already. */
1635 ADD_FLAG_LAZY = 1,
1636 /** Force adding. */
1637 ADD_FLAG_FORCE = 2,
1638 /** Print what is being done. */
1639 ADD_FLAG_VERBOSE = 4,
1640 /** Try to add files with unknown suffixes. */
1641 ADD_FLAG_ALL = 8,
1642 };
1643
1644 static void com_add_callback(int fd, const struct osl_object *query)
1645 {
1646 char *buf = query->data, *path;
1647 struct osl_row *pb, *aft_row;
1648 struct osl_row *hs;
1649 struct osl_object objs[NUM_AFT_COLUMNS];
1650 HASH_TYPE *hash;
1651 char asc[2 * HASH_SIZE + 1];
1652 int ret;
1653 char afsi_buf[AFSI_SIZE];
1654 uint32_t flags = read_u32(buf + CAB_FLAGS_OFFSET);
1655 struct afs_info default_afsi = {.last_played = 0};
1656 struct para_buffer msg = {.max_size = SHMMAX,
1657 .max_size_handler = pass_buffer_as_shm, .private_data = &fd};
1658 uint16_t afhi_offset, chunks_offset;
1659
1660 hash = (HASH_TYPE *)buf + CAB_HASH_OFFSET;
1661 hash_to_asc(hash, asc);;
1662 objs[AFTCOL_HASH].data = buf + CAB_HASH_OFFSET;
1663 objs[AFTCOL_HASH].size = HASH_SIZE;
1664
1665 path = buf + CAB_PATH_OFFSET;
1666 objs[AFTCOL_PATH].data = path;
1667 objs[AFTCOL_PATH].size = strlen(path) + 1;
1668
1669 PARA_INFO_LOG("request to add %s\n", path);
1670 hs = find_hash_sister(hash);
1671 ret = aft_get_row_of_path(path, &pb);
1672 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1673 goto out;
1674 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1675 if (flags & ADD_FLAG_VERBOSE)
1676 ret = para_printf(&msg, "ignoring duplicate\n");
1677 else
1678 ret = 1;
1679 goto out;
1680 }
1681 if (hs && hs != pb) {
1682 struct osl_object obj;
1683 if (pb) { /* hs trumps pb, remove pb */
1684 if (flags & ADD_FLAG_VERBOSE) {
1685 ret = para_printf(&msg, "removing path brother\n");
1686 if (ret < 0)
1687 goto out;
1688 }
1689 ret = osl(osl_del_row(audio_file_table, pb));
1690 if (ret < 0)
1691 goto out;
1692 pb = NULL;
1693 }
1694 /* file rename, update hs' path */
1695 if (flags & ADD_FLAG_VERBOSE) {
1696 ret = osl(osl_get_object(audio_file_table, hs,
1697 AFTCOL_PATH, &obj));
1698 if (ret < 0)
1699 goto out;
1700 ret = para_printf(&msg, "renamed from %s\n", (char *)obj.data);
1701 if (ret < 0)
1702 goto out;
1703 }
1704 ret = osl(osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1705 &objs[AFTCOL_PATH]));
1706 if (ret < 0)
1707 goto out;
1708 afs_event(AUDIO_FILE_RENAME, &msg, hs);
1709 if (!(flags & ADD_FLAG_FORCE))
1710 goto out;
1711 }
1712 /* no hs or force mode, child must have sent afhi */
1713 afhi_offset = read_u16(buf + CAB_AFHI_OFFSET_POS);
1714 chunks_offset = read_u16(buf + CAB_CHUNKS_OFFSET_POS);
1715
1716 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1717 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1718 ret = -E_NO_AFHI;
1719 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1720 goto out;
1721 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1722 objs[AFTCOL_CHUNKS].size = query->size - chunks_offset;
1723 if (pb && !hs) { /* update pb's hash */
1724 char old_asc[2 * HASH_SIZE + 1];
1725 HASH_TYPE *old_hash;
1726 ret = get_hash_of_row(pb, &old_hash);
1727 if (ret < 0)
1728 goto out;
1729 hash_to_asc(old_hash, old_asc);
1730 if (flags & ADD_FLAG_VERBOSE) {
1731 ret = para_printf(&msg, "file change: %s -> %s\n",
1732 old_asc, asc);
1733 if (ret < 0)
1734 goto out;
1735 }
1736 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1737 &objs[AFTCOL_HASH]);
1738 if (ret < 0)
1739 goto out;
1740 }
1741 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1742 struct osl_row *row = pb? pb : hs;
1743 /* update afhi and chunk_table */
1744 if (flags & ADD_FLAG_VERBOSE) {
1745 ret = para_printf(&msg, "updating afhi and chunk table\n");
1746 if (ret < 0)
1747 goto out;
1748 }
1749 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1750 &objs[AFTCOL_AFHI]));
1751 if (ret < 0)
1752 goto out;
1753 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1754 &objs[AFTCOL_CHUNKS]));
1755 if (ret < 0)
1756 goto out;
1757 afs_event(AFHI_CHANGE, &msg, row);
1758 goto out;
1759 }
1760 /* new entry, use default afsi */
1761 if (flags & ADD_FLAG_VERBOSE) {
1762 ret = para_printf(&msg, "new file\n");
1763 if (ret < 0)
1764 goto out;
1765 }
1766 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1767 default_afsi.audio_format_id = read_u8(buf + CAB_AUDIO_FORMAT_OFFSET);
1768
1769 objs[AFTCOL_AFSI].data = &afsi_buf;
1770 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1771 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1772 ret = osl(osl_add_and_get_row(audio_file_table, objs, &aft_row));
1773 afs_event(AUDIO_FILE_ADD, &msg, aft_row);
1774 out:
1775 if (ret < 0)
1776 para_printf(&msg, "%s\n", para_strerror(-ret));
1777 if (msg.offset)
1778 pass_buffer_as_shm(msg.buf, msg.offset, &fd);
1779 free(msg.buf);
1780 }
1781
1782 /** Used by com_add(). */
1783 struct private_add_data {
1784 /** The socket file descriptor, including rc4 keys. */
1785 struct rc4_context *rc4c;
1786 /** The given add flags. */
1787 uint32_t flags;
1788 };
1789
1790 static void path_brother_callback(int fd, const struct osl_object *query)
1791 {
1792 char *path = query->data;
1793 struct osl_row *path_brother;
1794 int ret = aft_get_row_of_path(path, &path_brother);
1795 if (ret < 0)
1796 return;
1797 pass_buffer_as_shm((char *)&path_brother, sizeof(path_brother), &fd);
1798 }
1799
1800 static void hash_sister_callback(int fd, const struct osl_object *query)
1801 {
1802 HASH_TYPE *hash = query->data;
1803 struct osl_row *hash_sister;
1804
1805 hash_sister = find_hash_sister(hash);
1806 if (!hash_sister)
1807 return;
1808 pass_buffer_as_shm((char *)&hash_sister, sizeof(hash_sister), &fd);
1809 }
1810
1811 static int get_row_pointer_from_result(struct osl_object *result, void *private)
1812 {
1813 struct osl_row **row = private;
1814 *row = result->data;
1815 return 1;
1816 }
1817
1818 static int add_one_audio_file(const char *path, void *private_data)
1819 {
1820 int ret, send_ret = 1, fd;
1821 uint8_t format_num = -1;
1822 struct private_add_data *pad = private_data;
1823 struct afh_info afhi, *afhi_ptr = NULL;
1824 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1825 struct osl_object map, obj = {.data = NULL}, query;
1826 HASH_TYPE hash[HASH_SIZE];
1827
1828 ret = guess_audio_format(path);
1829 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL))
1830 goto out_free;
1831 query.data = (char *)path;
1832 query.size = strlen(path) + 1;
1833 ret = send_callback_request(path_brother_callback, &query,
1834 get_row_pointer_from_result, &pb);
1835 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1836 goto out_free;
1837 ret = 1;
1838 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1839 if (pad->flags & ADD_FLAG_VERBOSE)
1840 send_ret = rc4_send_va_buffer(pad->rc4c,
1841 "lazy-ignore: %s\n", path);
1842 goto out_free;
1843 }
1844 /* We still want to add this file. Compute its hash. */
1845 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &fd);
1846 if (ret < 0)
1847 goto out_free;
1848 hash_function(map.data, map.size, hash);
1849
1850 /* Check whether the database contains a file with the same hash. */
1851 query.data = hash;
1852 query.size = HASH_SIZE;
1853 ret = send_callback_request(hash_sister_callback, &query,
1854 get_row_pointer_from_result, &hs);
1855 if (ret < 0)
1856 goto out_unmap;
1857 /* Return success if we already know this file. */
1858 ret = 1;
1859 if (pb && hs && hs == pb && !(pad->flags & ADD_FLAG_FORCE)) {
1860 if (pad->flags & ADD_FLAG_VERBOSE)
1861 send_ret = rc4_send_va_buffer(pad->rc4c,
1862 "%s exists, not forcing update\n", path);
1863 goto out_unmap;
1864 }
1865 /*
1866 * We won't recalculate the audio format info and the chunk table if
1867 * there is a hash sister and FORCE was not given.
1868 */
1869 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1870 ret = compute_afhi(path, map.data, map.size, fd, &afhi);
1871 if (ret < 0)
1872 goto out_unmap;
1873 format_num = ret;
1874 afhi_ptr = &afhi;
1875 }
1876 munmap(map.data, map.size);
1877 close(fd);
1878 if (pad->flags & ADD_FLAG_VERBOSE) {
1879 send_ret = rc4_send_va_buffer(pad->rc4c, "adding %s\n", path);
1880 if (send_ret < 0)
1881 goto out_free;
1882 }
1883 save_add_callback_buffer(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1884 /* Ask afs to consider this entry for adding. */
1885 ret = send_callback_request(com_add_callback, &obj, rc4_send_result, pad->rc4c);
1886 goto out_free;
1887
1888 out_unmap:
1889 close(fd);
1890 munmap(map.data, map.size);
1891 out_free:
1892 if (ret < 0 && send_ret >= 0)
1893 send_ret = rc4_send_va_buffer(pad->rc4c,
1894 "failed to add %s (%s)\n", path, para_strerror(-ret));
1895 free(obj.data);
1896 if (afhi_ptr) {
1897 free(afhi_ptr->chunk_table);
1898 free(afhi_ptr->techinfo);
1899 free(afhi_ptr->tags.artist);
1900 free(afhi_ptr->tags.title);
1901 free(afhi_ptr->tags.year);
1902 free(afhi_ptr->tags.album);
1903 free(afhi_ptr->tags.comment);
1904 }
1905 /* Stop adding files only on send errors. */
1906 return send_ret;
1907 }
1908
1909 int com_add(struct rc4_context *rc4c, int argc, char * const * const argv)
1910 {
1911 int i, ret;
1912 struct private_add_data pad = {.rc4c = rc4c, .flags = 0};
1913 struct stat statbuf;
1914
1915 for (i = 1; i < argc; i++) {
1916 const char *arg = argv[i];
1917 if (arg[0] != '-')
1918 break;
1919 if (!strcmp(arg, "--")) {
1920 i++;
1921 break;
1922 }
1923 if (!strcmp(arg, "-a")) {
1924 pad.flags |= ADD_FLAG_ALL;
1925 continue;
1926 }
1927 if (!strcmp(arg, "-l")) {
1928 pad.flags |= ADD_FLAG_LAZY;
1929 continue;
1930 }
1931 if (!strcmp(arg, "-f")) {
1932 pad.flags |= ADD_FLAG_FORCE;
1933 continue;
1934 }
1935 if (!strcmp(arg, "-v")) {
1936 pad.flags |= ADD_FLAG_VERBOSE;
1937 continue;
1938 }
1939 }
1940 if (argc <= i)
1941 return -E_AFT_SYNTAX;
1942 for (; i < argc; i++) {
1943 char *path;
1944 ret = verify_path(argv[i], &path);
1945 if (ret < 0) {
1946 ret = rc4_send_va_buffer(rc4c, "%s: %s\n", argv[i],
1947 para_strerror(-ret));
1948 if (ret < 0)
1949 return ret;
1950 continue;
1951 }
1952 ret = stat(path, &statbuf);
1953 if (ret < 0) {
1954 ret = rc4_send_va_buffer(rc4c, "failed to stat %s (%s)\n", path,
1955 strerror(errno));
1956 free(path);
1957 if (ret < 0)
1958 return ret;
1959 continue;
1960 }
1961 if (S_ISDIR(statbuf.st_mode))
1962 ret = for_each_file_in_dir(path, add_one_audio_file,
1963 &pad);
1964 else
1965 ret = add_one_audio_file(path, &pad);
1966 if (ret < 0) {
1967 rc4_send_va_buffer(rc4c, "%s: %s\n", path, para_strerror(-ret));
1968 free(path);
1969 return ret;
1970 }
1971 free(path);
1972 }
1973 return 1;
1974
1975 }
1976
1977 /**
1978 * Flags used by the touch command.
1979 *
1980 * \sa com_touch().
1981 */
1982 enum touch_flags {
1983 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1984 TOUCH_FLAG_FNM_PATHNAME = 1,
1985 /** Activates verbose mode. */
1986 TOUCH_FLAG_VERBOSE = 2
1987 };
1988
1989 /** Options used by com_touch(). */
1990 struct com_touch_options {
1991 /** New num_played value. */
1992 int32_t num_played;
1993 /** New last played count. */
1994 int64_t last_played;
1995 /** New lyrics id. */
1996 int32_t lyrics_id;
1997 /** New image id. */
1998 int32_t image_id;
1999 /** New amplification value. */
2000 int32_t amp;
2001 /** Command line flags (see \ref touch_flags). */
2002 unsigned flags;
2003 };
2004
2005 /** Data passed to the action handler of com_touch(). */
2006 struct touch_action_data {
2007 /** Command line options (see \ref com_touch_options). */
2008 struct com_touch_options *cto;
2009 /** Message buffer. */
2010 struct para_buffer pb;
2011 /** How many audio files matched the given pattern. */
2012 unsigned num_matches;
2013 };
2014
2015 static int touch_audio_file(__a_unused struct osl_table *table,
2016 struct osl_row *row, const char *name, void *data)
2017 {
2018 struct touch_action_data *tad = data;
2019 struct osl_object obj;
2020 struct afs_info old_afsi, new_afsi;
2021 int ret, no_options = tad->cto->num_played < 0 && tad->cto->last_played < 0 &&
2022 tad->cto->lyrics_id < 0 && tad->cto->image_id < 0 && tad->cto->amp < 0;
2023 struct afsi_change_event_data aced;
2024
2025 ret = get_afsi_object_of_row(row, &obj);
2026 if (ret < 0)
2027 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2028 ret = load_afsi(&old_afsi, &obj);
2029 if (ret < 0)
2030 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2031 new_afsi = old_afsi;
2032 if (no_options) {
2033 new_afsi.num_played++;
2034 new_afsi.last_played = time(NULL);
2035 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2036 ret = para_printf(&tad->pb, "%s: num_played = %u, "
2037 "last_played = now()\n", name,
2038 new_afsi.num_played);
2039 if (ret < 0)
2040 return ret;
2041 }
2042 } else {
2043 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2044 ret = para_printf(&tad->pb, "touching %s\n", name);
2045 if (ret < 0)
2046 return ret;
2047 }
2048 if (tad->cto->lyrics_id >= 0)
2049 new_afsi.lyrics_id = tad->cto->lyrics_id;
2050 if (tad->cto->image_id >= 0)
2051 new_afsi.image_id = tad->cto->image_id;
2052 if (tad->cto->num_played >= 0)
2053 new_afsi.num_played = tad->cto->num_played;
2054 if (tad->cto->last_played >= 0)
2055 new_afsi.last_played = tad->cto->last_played;
2056 if (tad->cto->amp >= 0)
2057 new_afsi.amp = tad->cto->amp;
2058 }
2059 tad->num_matches++;
2060 save_afsi(&new_afsi, &obj); /* in-place update */
2061 aced.aft_row = row;
2062 aced.old_afsi = &old_afsi;
2063 afs_event(AFSI_CHANGE, &tad->pb, &aced);
2064 return 1;
2065 }
2066
2067 static void com_touch_callback(int fd, const struct osl_object *query)
2068 {
2069 struct touch_action_data tad = {.cto = query->data,
2070 .pb = {
2071 .max_size = SHMMAX,
2072 .private_data = &fd,
2073 .max_size_handler = pass_buffer_as_shm
2074 }
2075 };
2076 int ret, ret2 = 0;
2077 struct pattern_match_data pmd = {
2078 .table = audio_file_table,
2079 .loop_col_num = AFTCOL_HASH,
2080 .match_col_num = AFTCOL_PATH,
2081 .patterns = {.data = (char *)query->data + sizeof(*tad.cto),
2082 .size = query->size - sizeof(*tad.cto)},
2083 .data = &tad,
2084 .action = touch_audio_file
2085 };
2086 if (tad.cto->flags & TOUCH_FLAG_FNM_PATHNAME)
2087 pmd.fnmatch_flags |= FNM_PATHNAME;
2088 ret = for_each_matching_row(&pmd);
2089 if (ret < 0)
2090 ret2 = para_printf(&tad.pb, "%s\n", para_strerror(-ret));
2091 else
2092 if (!tad.num_matches)
2093 ret2 = para_printf(&tad.pb, "no matches\n");
2094 if (ret2 >= 0 && tad.pb.offset)
2095 pass_buffer_as_shm(tad.pb.buf, tad.pb.offset, &fd);
2096 free(tad.pb.buf);
2097 }
2098
2099 int com_touch(struct rc4_context *rc4c, int argc, char * const * const argv)
2100 {
2101 struct com_touch_options cto = {
2102 .num_played = -1,
2103 .last_played = -1,
2104 .lyrics_id = -1,
2105 .image_id = -1,
2106 .amp = -1,
2107 };
2108 struct osl_object query = {.data = &cto, .size = sizeof(cto)};
2109 int i, ret;
2110
2111
2112 for (i = 1; i < argc; i++) {
2113 const char *arg = argv[i];
2114 if (arg[0] != '-')
2115 break;
2116 if (!strcmp(arg, "--")) {
2117 i++;
2118 break;
2119 }
2120 if (!strncmp(arg, "-n=", 3)) {
2121 ret = para_atoi32(arg + 3, &cto.num_played);
2122 if (ret < 0)
2123 return ret;
2124 continue;
2125 }
2126 if (!strncmp(arg, "-l=", 3)) {
2127 ret = para_atoi64(arg + 3, &cto.last_played);
2128 if (ret < 0)
2129 return ret;
2130 continue;
2131 }
2132 if (!strncmp(arg, "-y=", 3)) {
2133 ret = para_atoi32(arg + 3, &cto.lyrics_id);
2134 if (ret < 0)
2135 return ret;
2136 continue;
2137 }
2138 if (!strncmp(arg, "-i=", 3)) {
2139 ret = para_atoi32(arg + 3, &cto.image_id);
2140 if (ret < 0)
2141 return ret;
2142 continue;
2143 }
2144 if (!strncmp(arg, "-a=", 3)) {
2145 int32_t val;
2146 ret = para_atoi32(arg + 3, &val);
2147 if (ret < 0)
2148 return ret;
2149 if (val < 0 || val > 255)
2150 return -ERRNO_TO_PARA_ERROR(EINVAL);
2151 cto.amp = val;
2152 continue;
2153 }
2154 if (!strcmp(arg, "-p")) {
2155 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
2156 continue;
2157 }
2158 if (!strcmp(arg, "-v")) {
2159 cto.flags |= TOUCH_FLAG_VERBOSE;
2160 continue;
2161 }
2162 break; /* non-option starting with dash */
2163 }
2164 if (i >= argc)
2165 return -E_AFT_SYNTAX;
2166 ret = send_option_arg_callback_request(&query, argc - i,
2167 argv + i, com_touch_callback, rc4_send_result, rc4c);
2168 if (ret < 0)
2169 rc4_send_va_buffer(rc4c, "%s\n", para_strerror(-ret));
2170 return ret;
2171 }
2172
2173 /** Flags for com_rm(). */
2174 enum rm_flags {
2175 /** -v */
2176 RM_FLAG_VERBOSE = 1,
2177 /** -f */
2178 RM_FLAG_FORCE = 2,
2179 /** -p */
2180 RM_FLAG_FNM_PATHNAME = 4
2181 };
2182
2183 /** Data passed to the action handler of com_rm(). */
2184 struct com_rm_action_data {
2185 /** Command line flags ((see \ref rm_flags). */
2186 uint32_t flags;
2187 /** Message buffer. */
2188 struct para_buffer pb;
2189 /** Number of audio files removed. */
2190 unsigned num_removed;
2191 };
2192
2193 static int remove_audio_file(__a_unused struct osl_table *table,
2194 struct osl_row *row, const char *name, void *data)
2195 {
2196 struct com_rm_action_data *crd = data;
2197 int ret;
2198
2199 if (crd->flags & RM_FLAG_VERBOSE) {
2200 ret = para_printf(&crd->pb, "removing %s\n", name);
2201 if (ret < 0)
2202 return ret;
2203 }
2204 afs_event(AUDIO_FILE_REMOVE, &crd->pb, row);
2205 ret = osl(osl_del_row(audio_file_table, row));
2206 if (ret < 0)
2207 para_printf(&crd->pb, "%s: %s\n", name, para_strerror(-ret));
2208 else
2209 crd->num_removed++;
2210 return ret;
2211 }
2212
2213 static void com_rm_callback(int fd, const struct osl_object *query)
2214 {
2215 struct com_rm_action_data crd = {.flags = *(uint32_t *)query->data,
2216 .pb = {
2217 .max_size = SHMMAX,
2218 .private_data = &fd,
2219 .max_size_handler = pass_buffer_as_shm
2220 }
2221 };
2222 int ret;
2223 struct pattern_match_data pmd = {
2224 .table = audio_file_table,
2225 .loop_col_num = AFTCOL_HASH,
2226 .match_col_num = AFTCOL_PATH,
2227 .patterns = {.data = (char *)query->data + sizeof(uint32_t),
2228 .size = query->size - sizeof(uint32_t)},
2229 .data = &crd,
2230 .action = remove_audio_file
2231 };
2232 if (crd.flags & RM_FLAG_FNM_PATHNAME)
2233 pmd.fnmatch_flags |= FNM_PATHNAME;
2234 ret = for_each_matching_row(&pmd);
2235 if (ret < 0) {
2236 para_printf(&crd.pb, "%s\n", para_strerror(-ret));
2237 return;
2238 }
2239 if (!crd.num_removed && !(crd.flags & RM_FLAG_FORCE))
2240 ret = para_printf(&crd.pb, "no matches -- nothing removed\n");
2241 else {
2242 if (crd.flags & RM_FLAG_VERBOSE)
2243 ret = para_printf(&crd.pb, "removed %u files\n", crd.num_removed);
2244 }
2245 if (ret >= 0 && crd.pb.offset)
2246 pass_buffer_as_shm(crd.pb.buf, crd.pb.offset, &fd);
2247 free(crd.pb.buf);
2248 }
2249
2250 /* TODO options: -r (recursive) */
2251 int com_rm(struct rc4_context *rc4c, int argc, char * const * const argv)
2252 {
2253 uint32_t flags = 0;
2254 struct osl_object query = {.data = &flags, .size = sizeof(flags)};
2255 int i, ret;
2256
2257 for (i = 1; i < argc; i++) {
2258 const char *arg = argv[i];
2259 if (arg[0] != '-')
2260 break;
2261 if (!strcmp(arg, "--")) {
2262 i++;
2263 break;
2264 }
2265 if (!strcmp(arg, "-f")) {
2266 flags |= RM_FLAG_FORCE;
2267 continue;
2268 }
2269 if (!strcmp(arg, "-p")) {
2270 flags |= RM_FLAG_FNM_PATHNAME;
2271 continue;
2272 }
2273 if (!strcmp(arg, "-v")) {
2274 flags |= RM_FLAG_VERBOSE;
2275 continue;
2276 }
2277 break;
2278 }
2279 if (i >= argc)
2280 return -E_AFT_SYNTAX;
2281 ret = send_option_arg_callback_request(&query, argc - i, argv + i,
2282 com_rm_callback, rc4_send_result, rc4c);
2283 if (ret < 0)
2284 rc4_send_va_buffer(rc4c, "%s\n", para_strerror(-ret));
2285 return ret;
2286 }
2287
2288 /**
2289 * Flags used by the cpsi command.
2290 *
2291 * \sa com_cpsi().
2292 */
2293 enum cpsi_flags {
2294 /** Whether the lyrics id should be copied. */
2295 CPSI_FLAG_COPY_LYRICS_ID = 1,
2296 /** Whether the image id should be copied. */
2297 CPSI_FLAG_COPY_IMAGE_ID = 2,
2298 /** Whether the lastplayed time should be copied. */
2299 CPSI_FLAG_COPY_LASTPLAYED = 4,
2300 /** Whether the numplayed count should be copied. */
2301 CPSI_FLAG_COPY_NUMPLAYED = 8,
2302 /** Whether the attributes should be copied. */
2303 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2304 /** Activates verbose mode. */
2305 CPSI_FLAG_VERBOSE = 32,
2306 };
2307
2308 /** Data passed to the action handler of com_cpsi(). */
2309 struct cpsi_action_data {
2310 /** command line flags (see \ref cpsi_flags). */
2311 unsigned flags;
2312 /** Number of audio files changed. */
2313 unsigned num_copied;
2314 /** Message buffer. */
2315 struct para_buffer pb;
2316 /** Values are copied from here. */
2317 struct afs_info source_afsi;
2318 };
2319
2320 static int copy_selector_info(__a_unused struct osl_table *table,
2321 struct osl_row *row, const char *name, void *data)
2322 {
2323 struct cpsi_action_data *cad = data;
2324 struct osl_object target_afsi_obj;
2325 int ret;
2326 struct afs_info old_afsi, target_afsi;
2327 struct afsi_change_event_data aced;
2328
2329 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2330 if (ret < 0)
2331 return ret;
2332 load_afsi(&target_afsi, &target_afsi_obj);
2333 old_afsi = target_afsi;
2334 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2335 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2336 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2337 target_afsi.image_id = cad->source_afsi.image_id;
2338 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2339 target_afsi.last_played = cad->source_afsi.last_played;
2340 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2341 target_afsi.num_played = cad->source_afsi.num_played;
2342 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2343 target_afsi.attributes = cad->source_afsi.attributes;
2344 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2345 cad->num_copied++;
2346 if (cad->flags & CPSI_FLAG_VERBOSE) {
2347 ret = para_printf(&cad->pb, "copied afsi to %s\n", name);
2348 if (ret < 0)
2349 return ret;
2350 }
2351 aced.aft_row = row;
2352 aced.old_afsi = &old_afsi;
2353 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2354 return 1;
2355 }
2356
2357 static void com_cpsi_callback(int fd, const struct osl_object *query)
2358 {
2359 struct cpsi_action_data cad = {
2360 .flags = *(unsigned *)query->data,
2361 .pb = {
2362 .max_size = SHMMAX,
2363 .private_data = &fd,
2364 .max_size_handler = pass_buffer_as_shm
2365 }
2366 };
2367 int ret;
2368 char *source_path = (char *)query->data + sizeof(cad.flags);
2369 struct pattern_match_data pmd = {
2370 .table = audio_file_table,
2371 .loop_col_num = AFTCOL_HASH,
2372 .match_col_num = AFTCOL_PATH,
2373 .patterns = {.data = source_path + strlen(source_path) + 1,
2374 .size = query->size - sizeof(cad.flags)
2375 - strlen(source_path) - 1},
2376 .data = &cad,
2377 .action = copy_selector_info
2378 };
2379
2380 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2381 if (ret < 0)
2382 goto out;
2383 ret = for_each_matching_row(&pmd);
2384 out:
2385 if (ret < 0)
2386 para_printf(&cad.pb, "%s\n", para_strerror(-ret));
2387 else if (cad.flags & CPSI_FLAG_VERBOSE) {
2388 if (cad.num_copied)
2389 para_printf(&cad.pb, "copied requested afsi from %s "
2390 "to %u files\n", source_path, cad.num_copied);
2391 else
2392 para_printf(&cad.pb, "nothing copied\n");
2393 }
2394 if (cad.pb.offset)
2395 pass_buffer_as_shm(cad.pb.buf, cad.pb.offset, &fd);
2396 free(cad.pb.buf);
2397 }
2398
2399 int com_cpsi(struct rc4_context *rc4c, int argc, char * const * const argv)
2400 {
2401 unsigned flags = 0;
2402 int i, ret;
2403 struct osl_object options = {.data = &flags, .size = sizeof(flags)};
2404
2405 for (i = 1; i < argc; i++) {
2406 const char *arg = argv[i];
2407 if (arg[0] != '-')
2408 break;
2409 if (!strcmp(arg, "--")) {
2410 i++;
2411 break;
2412 }
2413 if (!strcmp(arg, "-y")) {
2414 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2415 continue;
2416 }
2417 if (!strcmp(arg, "-i")) {
2418 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2419 continue;
2420 }
2421 if (!strcmp(arg, "-l")) {
2422 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2423 continue;
2424 }
2425 if (!strcmp(arg, "-n")) {
2426 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2427 continue;
2428 }
2429 if (!strcmp(arg, "-a")) {
2430 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2431 continue;
2432 }
2433 if (!strcmp(arg, "-v")) {
2434 flags |= CPSI_FLAG_VERBOSE;
2435 continue;
2436 }
2437 break;
2438 }
2439 if (i + 1 >= argc) /* need at least source file and pattern */
2440 return -E_AFT_SYNTAX;
2441 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2442 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2443 ret = send_option_arg_callback_request(&options, argc - i, argv + i,
2444 com_cpsi_callback, rc4_send_result, rc4c);
2445 if (ret < 0)
2446 rc4_send_va_buffer(rc4c, "%s\n", para_strerror(-ret));
2447 return ret;
2448 }
2449
2450 static void afs_stat_callback(int fd, const struct osl_object *query)
2451 {
2452 int *parser_friendly = query->data;
2453 char *buf = *parser_friendly?
2454 parser_friendly_status_items : status_items;
2455
2456 if (!buf)
2457 return;
2458 pass_buffer_as_shm(buf, strlen(buf), &fd);
2459 }
2460
2461 /**
2462 * Get the current afs status items from the afs process and send it using RC4.
2463 *
2464 * \param rc4c The rc4 context for data encryption.
2465 * \param parser_friendly Whether parser-friendly output format should be used.
2466 *
2467 * As the contents of the afs status items change in time and the command
2468 * handler only has a COW version created at fork time, it can not send
2469 * up-to-date afs status items directly. Therefore the usual callback mechanism
2470 * is used to pass the status items from the afs process to the command handler
2471 * via a shared memory area and a pipe.
2472 */
2473 int send_afs_status(struct rc4_context *rc4c, int parser_friendly)
2474 {
2475 struct osl_object query = {.data = &parser_friendly,
2476 .size = sizeof(parser_friendly)};
2477
2478 return send_callback_request(afs_stat_callback, &query, rc4_send_result, rc4c);
2479 }
2480
2481 /* TODO: optionally fix problems by removing offending rows */
2482 static int check_audio_file(struct osl_row *row, void *data)
2483 {
2484 char *path;
2485 struct para_buffer *pb = data;
2486 struct stat statbuf;
2487 int ret = get_audio_file_path_of_row(row, &path);
2488 struct afs_info afsi;
2489 char *blob_name;
2490
2491 if (ret < 0)
2492 return para_printf(pb, "%s\n", para_strerror(-ret));
2493 if (stat(path, &statbuf) < 0) {
2494 ret = para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2495 if (ret < 0)
2496 return ret;
2497 } else {
2498 if (!S_ISREG(statbuf.st_mode)) {
2499 ret = para_printf(pb, "%s: not a regular file\n", path);
2500 if (ret < 0)
2501 return ret;
2502 }
2503 }
2504 ret = get_afsi_of_row(row, &afsi);
2505 if (ret < 0)
2506 return para_printf(pb, "%s: %s\n", path, para_strerror(-ret));
2507 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2508 if (ret < 0) {
2509 ret = para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2510 para_strerror(-ret));
2511 if (ret < 0)
2512 return ret;
2513 }
2514 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2515 if (ret < 0)
2516 ret = para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2517 para_strerror(-ret));
2518 return ret;
2519 }
2520
2521 /**
2522 * Check the audio file table for inconsistencies.
2523 *
2524 * \param fd The afs socket.
2525 * \param query Unused.
2526 *
2527 * This function always succeeds.
2528 *
2529 * \sa com_check().
2530 */
2531 void aft_check_callback(int fd, __a_unused const struct osl_object *query)
2532 {
2533 struct para_buffer pb = {
2534 .max_size = SHMMAX,
2535 .private_data = &fd,
2536 .max_size_handler = pass_buffer_as_shm
2537 };
2538 int ret = para_printf(&pb, "checking audio file table...\n");
2539
2540 if (ret < 0)
2541 return;
2542 audio_file_loop(&pb, check_audio_file);
2543 if (pb.offset)
2544 pass_buffer_as_shm(pb.buf, pb.offset, &fd);
2545 free(pb.buf);
2546 }
2547
2548 /**
2549 * Close the audio file table.
2550 *
2551 * \param flags Usual flags that are passed to osl_close_table().
2552 *
2553 * \sa osl_close_table().
2554 */
2555 static void aft_close(void)
2556 {
2557 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2558 audio_file_table = NULL;
2559 free(status_items);
2560 status_items = NULL;
2561 free(parser_friendly_status_items);
2562 parser_friendly_status_items = NULL;
2563 }
2564
2565 /**
2566 * Open the audio file table.
2567 *
2568 * \param dir The database directory.
2569 *
2570 * \return Standard.
2571 *
2572 * \sa osl_open_table().
2573 */
2574 static int aft_open(const char *dir)
2575 {
2576 int ret;
2577
2578 audio_file_table_desc.dir = dir;
2579 ret = osl(osl_open_table(&audio_file_table_desc, &audio_file_table));
2580 if (ret >= 0) {
2581 unsigned num;
2582 osl_get_num_rows(audio_file_table, &num);
2583 PARA_INFO_LOG("audio file table contains %d files\n", num);
2584 return ret;
2585 }
2586 PARA_INFO_LOG("failed to open audio file table\n");
2587 audio_file_table = NULL;
2588 if (ret >= 0 || ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_NOENT))
2589 return 1;
2590 return ret;
2591 }
2592
2593 static int aft_create(const char *dir)
2594 {
2595 audio_file_table_desc.dir = dir;
2596 return osl(osl_create_table(&audio_file_table_desc));
2597 }
2598
2599 static int clear_attribute(struct osl_row *row, void *data)
2600 {
2601 struct rmatt_event_data *red = data;
2602 struct afs_info afsi;
2603 struct osl_object obj;
2604 int ret = get_afsi_object_of_row(row, &obj);
2605 uint64_t mask = ~(1ULL << red->bitnum);
2606
2607 if (ret < 0)
2608 return ret;
2609 ret = load_afsi(&afsi, &obj);
2610 if (ret < 0)
2611 return ret;
2612 afsi.attributes &= mask;
2613 save_afsi(&afsi, &obj);
2614 return 1;
2615 }
2616
2617 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2618 void *data)
2619 {
2620 int ret;
2621
2622 switch(event) {
2623 case ATTRIBUTE_REMOVE: {
2624 const struct rmatt_event_data *red = data;
2625 ret = para_printf(pb, "clearing attribute %s (bit %u) from all "
2626 "entries in the audio file table\n", red->name,
2627 red->bitnum);
2628 if (ret < 0)
2629 return ret;
2630 return audio_file_loop(data, clear_attribute);
2631 }
2632 default:
2633 return 1;
2634 }
2635 }
2636
2637 /**
2638 * Initialize the audio file table.
2639 *
2640 * \param t Pointer to the structure to be initialized.
2641 */
2642 void aft_init(struct afs_table *t)
2643 {
2644 t->open = aft_open;
2645 t->close = aft_close;
2646 t->create = aft_create;
2647 t->event_handler = aft_event_handler;
2648 }