aft.c: Improve documentation of struct ls_widths.
[paraslash.git] / aft.c
1 /*
2 * Copyright (C) 2007-2014 Andre Noll <maan@tuebingen.mpg.de>
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 <sys/mman.h>
11 #include <fnmatch.h>
12 #include <sys/shm.h>
13 #include <osl.h>
14
15 #include "para.h"
16 #include "error.h"
17 #include "crypt.h"
18 #include "string.h"
19 #include "afh.h"
20 #include "afs.h"
21 #include "fd.h"
22 #include "ipc.h"
23 #include "portable_io.h"
24 #include "sideband.h"
25 #include "command.h"
26
27 static struct osl_table *audio_file_table;
28 static char *status_items;
29 static char *parser_friendly_status_items;
30
31 /** The different sorting methods of the ls command. */
32 enum ls_sorting_method {
33 /** -sp (default) */
34 LS_SORT_BY_PATH,
35 /** -ss */
36 LS_SORT_BY_SCORE,
37 /** -sl */
38 LS_SORT_BY_LAST_PLAYED,
39 /** -sn */
40 LS_SORT_BY_NUM_PLAYED,
41 /** -sf */
42 LS_SORT_BY_FREQUENCY,
43 /** -sc */
44 LS_SORT_BY_CHANNELS,
45 /** -si */
46 LS_SORT_BY_IMAGE_ID,
47 /** -sy */
48 LS_SORT_BY_LYRICS_ID,
49 /** -sb */
50 LS_SORT_BY_BITRATE,
51 /** -sd */
52 LS_SORT_BY_DURATION,
53 /** -sa */
54 LS_SORT_BY_AUDIO_FORMAT,
55 /** -sh */
56 LS_SORT_BY_HASH,
57 };
58
59 /** The different listing modes of the ls command. */
60 enum ls_listing_mode {
61 /** Default listing mode. */
62 LS_MODE_SHORT,
63 /** -l or -ll */
64 LS_MODE_LONG,
65 /** -lv */
66 LS_MODE_VERBOSE,
67 /** -lm */
68 LS_MODE_MBOX,
69 /** -lc */
70 LS_MODE_CHUNKS,
71 /** -lp */
72 LS_MODE_PARSER,
73 };
74
75 /** The flags accepted by the ls command. */
76 enum ls_flags {
77 /** -p */
78 LS_FLAG_FULL_PATH = 1,
79 /** -a */
80 LS_FLAG_ADMISSIBLE_ONLY = 2,
81 /** -r */
82 LS_FLAG_REVERSE = 4,
83 /** -d */
84 LS_FLAG_UNIXDATE = 8,
85 };
86
87 /**
88 * The size of the individual output fields of the ls command.
89 *
90 * These depend on the content being listed. For example, if each listed file
91 * is shorter than an hour, the duration format is set to mm:ss. Otherwise it
92 * is set to hh:mm:ss.
93 */
94 struct ls_widths {
95 /** size of the score field. */
96 unsigned short score_width;
97 /** size of the image id field. */
98 unsigned short image_id_width;
99 /** size of the lyrics id field. */
100 unsigned short lyrics_id_width;
101 /** size of the bitrate field. */
102 unsigned short bitrate_width;
103 /** size of the frequency field. */
104 unsigned short frequency_width;
105 /** size of the duration field. */
106 unsigned short duration_width;
107 /** size of the num played field. */
108 unsigned short num_played_width;
109 /** size of the amp field. */
110 unsigned short amp_width;
111 /** size of the audio format field. */
112 unsigned short audio_format_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 static 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 Standard.
195 *
196 * \sa save_afsi().
197 */
198 static 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((unsigned char *)obj1->data, (unsigned char *)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 /** Was: Location of the audio file header. */
348 AFHI_UNUSED1_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 /** Was: The start of the audio file header (4 bytes). */
356 AFHI_UNUSED2_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_UNUSED1_OFFSET, 0);
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 + AFHI_UNUSED2_OFFSET, 0);
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_len = read_u32(buf + AFHI_HEADER_LEN_OFFSET);
415 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
416 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
417 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
418 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
419 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC_OFFSET);
420 afhi->techinfo = (char *)buf + AFHI_INFO_STRING_OFFSET;
421 afhi->tags.artist = afhi->techinfo + strlen(afhi->techinfo) + 1;
422 afhi->tags.title = afhi->tags.artist + strlen(afhi->tags.artist) + 1;
423 afhi->tags.year = afhi->tags.title + strlen(afhi->tags.title) + 1;
424 afhi->tags.album = afhi->tags.year + strlen(afhi->tags.year) + 1;
425 afhi->tags.comment = afhi->tags.album + strlen(afhi->tags.album) + 1;
426 }
427
428 static unsigned sizeof_chunk_table(struct afh_info *afhi)
429 {
430 if (!afhi)
431 return 0;
432 return 4 * (afhi->chunks_total + 1);
433 }
434
435 static uint32_t save_chunk_table(struct afh_info *afhi, char *buf)
436 {
437 int i;
438 uint32_t max = 0, old = 0;
439
440 for (i = 0; i <= afhi->chunks_total; i++) {
441 uint32_t val = afhi->chunk_table[i];
442 write_u32(buf + 4 * i, val);
443 /*
444 * If the first chunk is the header, do not consider it for the
445 * calculation of the largest chunk size.
446 */
447 if (i == 0 || (i == 1 && afhi->header_len > 0)) {
448 old = val;
449 continue;
450 }
451 max = PARA_MAX(max, val - old);
452 old = val;
453 }
454 return max;
455 }
456
457 static void load_chunk_table(struct afh_info *afhi, char *buf)
458 {
459 int i;
460
461 afhi->chunk_table = para_malloc(sizeof_chunk_table(afhi));
462 for (i = 0; i <= afhi->chunks_total; i++)
463 afhi->chunk_table[i] = read_u32(buf + 4 * i);
464 }
465
466 /**
467 * Get the row of the audio file table corresponding to the given path.
468 *
469 * \param path The full path of the audio file.
470 * \param row Result pointer.
471 *
472 * \return Standard.
473 */
474 int aft_get_row_of_path(const char *path, struct osl_row **row)
475 {
476 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
477
478 return osl(osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row));
479 }
480
481 /**
482 * Get the row of the audio file table corresponding to the given hash value.
483 *
484 * \param hash The hash value of the desired audio file.
485 * \param row Result pointer.
486 *
487 * \return Standard.
488 */
489 static int aft_get_row_of_hash(unsigned char *hash, struct osl_row **row)
490 {
491 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
492 return osl(osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row));
493 }
494
495 /*
496 * Get the audio file selector info object of a row.
497 *
498 * \param row Pointer to a row in the audio file table.
499 * \param obj Result pointer.
500 *
501 * \return Standard.
502 */
503 static int get_afsi_object_of_row(const struct osl_row *row,
504 struct osl_object *obj)
505 {
506 return osl(osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj));
507 }
508
509 /**
510 * Get the osl object holding the audio file selector info, given a path.
511 *
512 *
513 * \param path The full path of the audio file.
514 * \param obj Result pointer.
515 *
516 * \return Positive on success, negative on errors.
517 */
518 static int get_afsi_object_of_path(const char *path, struct osl_object *obj)
519 {
520 struct osl_row *row;
521 int ret = aft_get_row_of_path(path, &row);
522 if (ret < 0)
523 return ret;
524 return get_afsi_object_of_row(row, obj);
525 }
526
527 /**
528 * Get the audio file selector info, given a row of the audio file table.
529 *
530 * \param row Pointer to a row in the audio file table.
531 * \param afsi Result pointer.
532 *
533 * \return Positive on success, negative on errors.
534 */
535 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
536 {
537 struct osl_object obj;
538 int ret = get_afsi_object_of_row(row, &obj);
539 if (ret < 0)
540 return ret;
541 return load_afsi(afsi, &obj);
542 }
543
544 /*
545 * Get the audio file selector info, given the path of an audio table.
546 *
547 * \param path The full path of the audio file.
548 * \param afsi Result pointer.
549 *
550 * \return Standard.
551 */
552 static int get_afsi_of_path(const char *path, struct afs_info *afsi)
553 {
554 struct osl_object obj;
555 int ret = get_afsi_object_of_path(path, &obj);
556 if (ret < 0)
557 return ret;
558 return load_afsi(afsi, &obj);
559 }
560
561 /**
562 * Get the path of an audio file, given a row of the audio file table.
563 *
564 * \param row Pointer to a row in the audio file table.
565 * \param path Result pointer.
566 *
567 * The result is a pointer to mmapped data. The caller must not attempt
568 * to free it.
569 *
570 * \return Standard.
571 */
572 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
573 {
574 struct osl_object path_obj;
575 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_PATH,
576 &path_obj));
577 if (ret < 0)
578 return ret;
579 *path = path_obj.data;
580 return 1;
581 }
582
583 /**
584 * Get the object containing the hash value of an audio file, given a row.
585 *
586 * \param row Pointer to a row of the audio file table.
587 * \param obj Result pointer.
588 *
589 * \return The return value of the underlying call to osl_get_object().
590 *
591 * \sa get_hash_of_row().
592 */
593 static int get_hash_object_of_aft_row(const struct osl_row *row,
594 struct osl_object *obj)
595 {
596 return osl(osl_get_object(audio_file_table, row, AFTCOL_HASH, obj));
597 }
598
599 /**
600 * Get the hash value of an audio file, given a row of the audio file table.
601 *
602 * \param row Pointer to a row of the audio file table.
603 * \param hash Result pointer.
604 *
605 * \a hash points to mapped data and must not be freed by the caller.
606 *
607 * \return The return value of the underlying call to
608 * get_hash_object_of_aft_row().
609 */
610 static int get_hash_of_row(const struct osl_row *row, unsigned char **hash)
611 {
612 struct osl_object obj;
613 int ret = get_hash_object_of_aft_row(row, &obj);
614
615 if (ret < 0)
616 return ret;
617 *hash = obj.data;
618 return 1;
619 }
620
621 /**
622 * Get the audio format handler info, given a row of the audio file table.
623 *
624 * \param row Pointer to a row of the audio file table.
625 * \param afhi Result pointer.
626 *
627 * \return The return value of the underlying call to osl_get_object().
628 *
629 * \sa get_chunk_table_of_row().
630 */
631 int get_afhi_of_row(const struct osl_row *row, struct afh_info *afhi)
632 {
633 struct osl_object obj;
634 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_AFHI,
635 &obj));
636 if (ret < 0)
637 return ret;
638 load_afhi(obj.data, afhi);
639 return 1;
640 }
641
642 /* returns shmid on success */
643 static int save_afd(struct audio_file_data *afd)
644 {
645 size_t size = sizeof(*afd) + sizeof_chunk_table(&afd->afhi);
646 int shmid, ret = shm_new(size);
647 void *shm_afd;
648 char *buf;
649
650 if (ret < 0)
651 return ret;
652 shmid = ret;
653 ret = shm_attach(shmid, ATTACH_RW, &shm_afd);
654 if (ret < 0)
655 goto err;
656 buf = shm_afd;
657 buf += sizeof(*afd);
658 afd->max_chunk_size = save_chunk_table(&afd->afhi, buf);
659 *(struct audio_file_data *)shm_afd = *afd;
660 shm_detach(shm_afd);
661 return shmid;
662 err:
663 shm_destroy(shmid);
664 return ret;
665 }
666
667 /**
668 * Extract a afd stored in a shared memory area.
669 *
670 * Attach the shared memory area given by \a shmid, load the audio file data
671 * stored therein and detach the area afterwards. Called by vss, after
672 * receiving a positive response to the request for the next audio file.
673 +
674 * \param shmid The identifier of the shared memory area containing the afd.
675 * \param afd Result pointer.
676 *
677 * \return Standard.
678 */
679 int load_afd(int shmid, struct audio_file_data *afd)
680 {
681 void *shm_afd;
682 char *buf;
683 int ret;
684
685 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
686 if (ret < 0)
687 return ret;
688 *afd = *(struct audio_file_data *)shm_afd;
689 buf = shm_afd;
690 buf += sizeof(*afd);
691 load_chunk_table(&afd->afhi, buf);
692 shm_detach(shm_afd);
693 return 1;
694 }
695
696 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
697 time_t current_time, enum ls_listing_mode lm)
698 {
699 struct tm t;
700
701 if (!localtime_r((time_t *)seconds, &t))
702 return -E_LOCALTIME;
703 if (lm == LS_MODE_MBOX) {
704 if (!strftime(buf, size, "%c", &t))
705 return -E_STRFTIME;
706 return 1;
707 }
708 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
709 if (!strftime(buf, size, "%b %e %k:%M", &t))
710 return -E_STRFTIME;
711 return 1;
712 }
713 if (!strftime(buf, size, "%b %e %Y", &t))
714 return -E_STRFTIME;
715 return 1;
716 }
717
718 /** Compute the number of (decimal) digits of a number. */
719 #define GET_NUM_DIGITS(x, num) { \
720 typeof((x)) _tmp = PARA_ABS(x); \
721 *num = 1; \
722 if ((_tmp)) \
723 while ((_tmp) > 9) { \
724 (_tmp) /= 10; \
725 (*num)++; \
726 } \
727 }
728
729 __a_const static short unsigned get_duration_width(int seconds)
730 {
731 short unsigned width;
732 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
733
734 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
735 return 4 + (mins > 9);
736 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
737 GET_NUM_DIGITS(hours, &width);
738 return width + 6;
739 }
740
741 static void get_duration_buf(int seconds, char *buf, struct ls_options *opts)
742 {
743 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
744 short unsigned max_width;
745
746 if (!hours) { /* m:ss or mm:ss */
747 max_width = opts->mode == LS_MODE_LONG?
748 opts->widths.duration_width : 4;
749 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
750 } else { /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
751 max_width = opts->mode == LS_MODE_LONG?
752 opts->widths.duration_width : 7;
753 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
754 seconds % 60);
755 }
756 }
757
758 static int write_attribute_items(struct para_buffer *b,
759 const char *att_bitmap, struct afs_info *afsi)
760 {
761 char *att_text;
762 int ret;
763
764 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_BITMAP, "%s\n", att_bitmap);
765 if (ret < 0)
766 return ret;
767 ret = get_attribute_text(&afsi->attributes, " ", &att_text);
768 if (ret < 0)
769 return ret;
770 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_TXT, "%s\n", att_text);
771 free(att_text);
772 return ret;
773 }
774
775 static int write_lyrics_items(struct para_buffer *b, struct afs_info *afsi)
776 {
777 char *lyrics_name;
778 int ret;
779
780 ret = WRITE_STATUS_ITEM(b, SI_LYRICS_ID, "%u\n", afsi->lyrics_id);
781 if (ret < 0)
782 return ret;
783 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
784 return WRITE_STATUS_ITEM(b, SI_LYRICS_NAME, "%s\n", lyrics_name?
785 lyrics_name : "(none)");
786 }
787
788 static int write_image_items(struct para_buffer *b, struct afs_info *afsi)
789 {
790 char *image_name;
791 int ret;
792
793 ret = WRITE_STATUS_ITEM(b, SI_IMAGE_ID, "%u\n", afsi->image_id);
794 if (ret < 0)
795 return ret;
796 img_get_name_by_id(afsi->image_id, &image_name);
797 return WRITE_STATUS_ITEM(b, SI_IMAGE_NAME, "%s\n", image_name?
798 image_name : "(none)");
799 }
800
801 static int write_filename_items(struct para_buffer *b, const char *path,
802 unsigned flags)
803 {
804 char *val;
805 int ret;
806
807 if (!(flags & LS_FLAG_FULL_PATH))
808 return WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", path);
809 ret = WRITE_STATUS_ITEM(b, SI_PATH, "%s\n", path);
810 if (ret < 0)
811 return ret;
812 val = para_basename(path);
813 ret = WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", val? val : "");
814 if (ret < 0)
815 return ret;
816 val = para_dirname(path);
817 ret = WRITE_STATUS_ITEM(b, SI_DIRECTORY, "%s\n", val? val : "");
818 free(val);
819 return ret;
820 }
821
822 static int print_chunk_table(struct ls_data *d, struct para_buffer *b)
823 {
824 struct osl_object chunk_table_obj;
825 struct osl_row *aft_row;
826 int ret, i;
827 char *buf;
828
829 ret = aft_get_row_of_hash(d->hash, &aft_row);
830 if (ret < 0)
831 return ret;
832 ret = osl_open_disk_object(audio_file_table, aft_row,
833 AFTCOL_CHUNKS, &chunk_table_obj);
834 if (ret < 0)
835 return ret;
836 ret = para_printf(b, "%s\n"
837 "chunk_time: %lu:%lu\nchunk_offsets: ",
838 d->path,
839 (long unsigned) d->afhi.chunk_tv.tv_sec,
840 (long unsigned) d->afhi.chunk_tv.tv_usec
841 );
842 if (ret < 0)
843 goto out;
844 buf = chunk_table_obj.data;
845 for (i = 0; i <= d->afhi.chunks_total; i++) {
846 ret = para_printf(b, "%u ", (unsigned) read_u32(buf + 4 * i));
847 if (ret < 0)
848 goto out;
849 }
850 ret = para_printf(b, "\n");
851 out:
852 osl_close_disk_object(&chunk_table_obj);
853 return ret;
854 }
855
856 static int write_score(struct para_buffer *b, struct ls_data *d,
857 struct ls_options *opts)
858 {
859 if (!(opts->flags & LS_FLAG_ADMISSIBLE_ONLY)) /* no score*/
860 return 0;
861 return WRITE_STATUS_ITEM(b, SI_SCORE, "%li\n", d->score);
862 }
863
864 static int print_list_item(struct ls_data *d, struct ls_options *opts,
865 struct para_buffer *b, time_t current_time)
866 {
867 int ret;
868 char att_buf[65];
869 char last_played_time[30];
870 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
871 struct afs_info *afsi = &d->afsi;
872 struct afh_info *afhi = &d->afhi;
873 char asc_hash[2 * HASH_SIZE + 1];
874
875 if (opts->mode == LS_MODE_SHORT) {
876 ret = para_printf(b, "%s\n", d->path);
877 goto out;
878 }
879 if (opts->mode == LS_MODE_CHUNKS) {
880 ret = print_chunk_table(d, b);
881 goto out;
882 }
883 get_attribute_bitmap(&afsi->attributes, att_buf);
884 if (opts->flags & LS_FLAG_UNIXDATE)
885 sprintf(last_played_time, "%llu",
886 (long long unsigned)afsi->last_played);
887 else {
888 ret = get_local_time(&afsi->last_played, last_played_time,
889 sizeof(last_played_time), current_time, opts->mode);
890 if (ret < 0)
891 goto out;
892 }
893 get_duration_buf(afhi->seconds_total, duration_buf, opts);
894 if (opts->mode == LS_MODE_LONG) {
895 struct ls_widths *w = &opts->widths;
896 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY) {
897 ret = para_printf(b, "%*li ",
898 opts->widths.score_width, d->score);
899 if (ret < 0)
900 goto out;
901 }
902 ret = para_printf(b,
903 "%s " /* attributes */
904 "%*u " /* amp */
905 "%*d " /* image_id */
906 "%*d " /* lyrics_id */
907 "%*d " /* bitrate */
908 "%*s " /* audio format */
909 "%*d " /* frequency */
910 "%d " /* channels */
911 "%s " /* duration */
912 "%*d " /* num_played */
913 "%s " /* last_played */
914 "%s\n", /* path */
915 att_buf,
916 w->amp_width, afsi->amp,
917 w->image_id_width, afsi->image_id,
918 w->lyrics_id_width, afsi->lyrics_id,
919 w->bitrate_width, afhi->bitrate,
920 w->audio_format_width,
921 audio_format_name(afsi->audio_format_id),
922 w->frequency_width, afhi->frequency,
923 afhi->channels,
924 duration_buf,
925 w->num_played_width, afsi->num_played,
926 last_played_time,
927 d->path
928 );
929 goto out;
930 }
931 if (opts->mode == LS_MODE_MBOX) {
932 const char *bn = para_basename(d->path);
933 ret = para_printf(b,
934 "From foo@localhost %s\n"
935 "Received: from\nTo: bar\nFrom: a\n"
936 "Subject: %s\n\n",
937 last_played_time,
938 bn? bn : "?");
939 if (ret < 0)
940 goto out;
941 }
942 ret = write_filename_items(b, d->path, opts->flags);
943 if (ret < 0)
944 goto out;
945 ret = write_score(b, d, opts);
946 if (ret < 0)
947 goto out;
948 ret = write_attribute_items(b, att_buf, afsi);
949 if (ret < 0)
950 goto out;
951 ret = write_image_items(b, afsi);
952 if (ret < 0)
953 goto out;
954 ret = write_lyrics_items(b, afsi);
955 if (ret < 0)
956 goto out;
957 hash_to_asc(d->hash, asc_hash);
958 ret = WRITE_STATUS_ITEM(b, SI_HASH, "%s\n", asc_hash);
959 if (ret < 0)
960 goto out;
961 ret = WRITE_STATUS_ITEM(b, SI_BITRATE, "%dkbit/s\n", afhi->bitrate);
962 if (ret < 0)
963 goto out;
964 ret = WRITE_STATUS_ITEM(b, SI_FORMAT, "%s\n",
965 audio_format_name(afsi->audio_format_id));
966 if (ret < 0)
967 goto out;
968 ret = WRITE_STATUS_ITEM(b, SI_FREQUENCY, "%dHz\n", afhi->frequency);
969 if (ret < 0)
970 goto out;
971 ret = WRITE_STATUS_ITEM(b, SI_CHANNELS, "%d\n", afhi->channels);
972 if (ret < 0)
973 goto out;
974 ret = WRITE_STATUS_ITEM(b, SI_DURATION, "%s\n", duration_buf);
975 if (ret < 0)
976 goto out;
977 ret = WRITE_STATUS_ITEM(b, SI_SECONDS_TOTAL, "%lu\n",
978 afhi->seconds_total);
979 if (ret < 0)
980 goto out;
981 ret = WRITE_STATUS_ITEM(b, SI_LAST_PLAYED, "%s\n", last_played_time);
982 if (ret < 0)
983 goto out;
984 ret = WRITE_STATUS_ITEM(b, SI_NUM_PLAYED, "%d\n", afsi->num_played);
985 if (ret < 0)
986 goto out;
987 ret = WRITE_STATUS_ITEM(b, SI_AMPLIFICATION, "%u\n", afsi->amp);
988 if (ret < 0)
989 goto out;
990 ret = WRITE_STATUS_ITEM(b, SI_CHUNK_TIME, "%lu\n",
991 tv2ms(&afhi->chunk_tv));
992 if (ret < 0)
993 goto out;
994 ret = WRITE_STATUS_ITEM(b, SI_NUM_CHUNKS, "%lu\n",
995 afhi->chunks_total);
996 if (ret < 0)
997 goto out;
998 ret = WRITE_STATUS_ITEM(b, SI_TECHINFO, "%s\n", afhi->techinfo);
999 if (ret < 0)
1000 goto out;
1001 ret = WRITE_STATUS_ITEM(b, SI_ARTIST, "%s\n", afhi->tags.artist);
1002 if (ret < 0)
1003 goto out;
1004 ret = WRITE_STATUS_ITEM(b, SI_TITLE, "%s\n", afhi->tags.title);
1005 if (ret < 0)
1006 goto out;
1007 ret = WRITE_STATUS_ITEM(b, SI_YEAR, "%s\n", afhi->tags.year);
1008 if (ret < 0)
1009 goto out;
1010 ret = WRITE_STATUS_ITEM(b, SI_ALBUM, "%s\n", afhi->tags.album);
1011 if (ret < 0)
1012 goto out;
1013 ret = WRITE_STATUS_ITEM(b, SI_COMMENT, "%s\n", afhi->tags.comment);
1014 if (ret < 0)
1015 goto out;
1016 if (opts->mode == LS_MODE_MBOX) {
1017 struct osl_object lyrics_def;
1018 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
1019 if (lyrics_def.data) {
1020 ret = para_printf(b, "Lyrics:\n~~~~~~~\n%s",
1021 (char *)lyrics_def.data);
1022 osl_close_disk_object(&lyrics_def);
1023 }
1024 }
1025 out:
1026 return ret;
1027 }
1028
1029 static int make_status_items(struct audio_file_data *afd,
1030 struct afs_info *afsi, char *path, long score,
1031 unsigned char *hash)
1032 {
1033 struct ls_data d = {
1034 .afhi = afd->afhi,
1035 .afsi = *afsi,
1036 .path = path,
1037 .score = score,
1038 .hash = hash
1039 };
1040 struct ls_options opts = {
1041 .flags = LS_FLAG_FULL_PATH | LS_FLAG_ADMISSIBLE_ONLY,
1042 .mode = LS_MODE_VERBOSE,
1043 };
1044 struct para_buffer pb = {.max_size = shm_get_shmmax() - 1};
1045 time_t current_time;
1046 int ret;
1047
1048 time(&current_time);
1049 ret = print_list_item(&d, &opts, &pb, current_time);
1050 if (ret < 0)
1051 return ret;
1052 free(status_items);
1053 status_items = pb.buf;
1054 memset(&pb, 0, sizeof(pb));
1055 pb.max_size = shm_get_shmmax() - 1;
1056 pb.flags = PBF_SIZE_PREFIX;
1057 ret = print_list_item(&d, &opts, &pb, current_time);
1058 if (ret < 0) {
1059 free(status_items);
1060 status_items = NULL;
1061 return ret;
1062 }
1063 free(parser_friendly_status_items);
1064 parser_friendly_status_items = pb.buf;
1065 return 1;
1066 }
1067
1068 /**
1069 * Mmap the given audio file and update statistics.
1070 *
1071 * \param aft_row Determines the audio file to be opened and updated.
1072 * \param score The score of the audio file.
1073 * \param afd Result pointer.
1074 *
1075 * On success, the numplayed field of the audio file selector info is increased
1076 * and the lastplayed time is set to the current time. Finally, the score of
1077 * the audio file is updated.
1078 *
1079 * \return Positive shmid on success, negative on errors.
1080 */
1081 int open_and_update_audio_file(struct osl_row *aft_row, long score,
1082 struct audio_file_data *afd)
1083 {
1084 unsigned char *aft_hash, file_hash[HASH_SIZE];
1085 struct osl_object afsi_obj;
1086 struct afs_info old_afsi, new_afsi;
1087 int ret = get_hash_of_row(aft_row, &aft_hash);
1088 struct afsi_change_event_data aced;
1089 struct osl_object map, chunk_table_obj;
1090 char *path;
1091
1092 if (ret < 0)
1093 return ret;
1094 ret = get_audio_file_path_of_row(aft_row, &path);
1095 if (ret < 0)
1096 return ret;
1097 PARA_NOTICE_LOG("%s\n", path);
1098 ret = get_afsi_object_of_row(aft_row, &afsi_obj);
1099 if (ret < 0)
1100 return ret;
1101 ret = load_afsi(&old_afsi, &afsi_obj);
1102 if (ret < 0)
1103 return ret;
1104 ret = get_afhi_of_row(aft_row, &afd->afhi);
1105 if (ret < 0)
1106 return ret;
1107 afd->afhi.chunk_table = NULL;
1108 ret = osl_open_disk_object(audio_file_table, aft_row,
1109 AFTCOL_CHUNKS, &chunk_table_obj);
1110 if (ret < 0)
1111 goto err;
1112 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &afd->fd);
1113 if (ret < 0)
1114 goto err;
1115 hash_function(map.data, map.size, file_hash);
1116 ret = hash_compare(file_hash, aft_hash);
1117 para_munmap(map.data, map.size);
1118 if (ret) {
1119 ret = -E_HASH_MISMATCH;
1120 goto err;
1121 }
1122 new_afsi = old_afsi;
1123 new_afsi.num_played++;
1124 new_afsi.last_played = time(NULL);
1125 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
1126
1127 afd->audio_format_id = old_afsi.audio_format_id;
1128 load_chunk_table(&afd->afhi, chunk_table_obj.data);
1129 ret = make_status_items(afd, &old_afsi, path, score, file_hash);
1130 if (ret < 0)
1131 goto err;
1132 aced.aft_row = aft_row;
1133 aced.old_afsi = &old_afsi;
1134 afs_event(AFSI_CHANGE, NULL, &aced);
1135 ret = save_afd(afd);
1136 err:
1137 free(afd->afhi.chunk_table);
1138 osl_close_disk_object(&chunk_table_obj);
1139 if (ret < 0)
1140 PARA_ERROR_LOG("%s: %s\n", path, para_strerror(-ret));
1141 return ret;
1142 }
1143
1144 static int ls_audio_format_compare(const void *a, const void *b)
1145 {
1146 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1147 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
1148 }
1149
1150 static int ls_duration_compare(const void *a, const void *b)
1151 {
1152 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1153 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
1154 }
1155
1156 static int ls_bitrate_compare(const void *a, const void *b)
1157 {
1158 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1159 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
1160 }
1161
1162 static int ls_lyrics_id_compare(const void *a, const void *b)
1163 {
1164 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1165 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
1166 }
1167
1168 static int ls_image_id_compare(const void *a, const void *b)
1169 {
1170 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1171 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
1172 }
1173
1174 static int ls_channels_compare(const void *a, const void *b)
1175 {
1176 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1177 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
1178 }
1179
1180 static int ls_frequency_compare(const void *a, const void *b)
1181 {
1182 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1183 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
1184 }
1185
1186 static int ls_num_played_compare(const void *a, const void *b)
1187 {
1188 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1189 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1190 }
1191
1192 static int ls_last_played_compare(const void *a, const void *b)
1193 {
1194 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1195 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1196 }
1197
1198 static int ls_score_compare(const void *a, const void *b)
1199 {
1200 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1201 return NUM_COMPARE(d1->score, d2->score);
1202 }
1203
1204 static int ls_path_compare(const void *a, const void *b)
1205 {
1206 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1207 return strcmp(d1->path, d2->path);
1208 }
1209
1210 static int sort_matching_paths(struct ls_options *options)
1211 {
1212 size_t nmemb = options->num_matching_paths;
1213 size_t size = sizeof(*options->data_ptr);
1214 int (*compar)(const void *, const void *);
1215 int i;
1216
1217 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1218 for (i = 0; i < nmemb; i++)
1219 options->data_ptr[i] = options->data + i;
1220
1221 /* In these cases the array is already sorted */
1222 if (options->sorting == LS_SORT_BY_PATH
1223 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1224 && (options->flags & LS_FLAG_FULL_PATH))
1225 return 1;
1226 if (options->sorting == LS_SORT_BY_SCORE &&
1227 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1228 return 1;
1229
1230 switch (options->sorting) {
1231 case LS_SORT_BY_PATH:
1232 compar = ls_path_compare; break;
1233 case LS_SORT_BY_SCORE:
1234 compar = ls_score_compare; break;
1235 case LS_SORT_BY_LAST_PLAYED:
1236 compar = ls_last_played_compare; break;
1237 case LS_SORT_BY_NUM_PLAYED:
1238 compar = ls_num_played_compare; break;
1239 case LS_SORT_BY_FREQUENCY:
1240 compar = ls_frequency_compare; break;
1241 case LS_SORT_BY_CHANNELS:
1242 compar = ls_channels_compare; break;
1243 case LS_SORT_BY_IMAGE_ID:
1244 compar = ls_image_id_compare; break;
1245 case LS_SORT_BY_LYRICS_ID:
1246 compar = ls_lyrics_id_compare; break;
1247 case LS_SORT_BY_BITRATE:
1248 compar = ls_bitrate_compare; break;
1249 case LS_SORT_BY_DURATION:
1250 compar = ls_duration_compare; break;
1251 case LS_SORT_BY_AUDIO_FORMAT:
1252 compar = ls_audio_format_compare; break;
1253 default:
1254 return -E_BAD_SORT;
1255 }
1256 qsort(options->data_ptr, nmemb, size, compar);
1257 return 1;
1258 }
1259
1260 /* row is either an aft_row or a row of the score table */
1261 /* TODO: Only compute widths if we need them */
1262 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1263 {
1264 int ret, i;
1265 struct ls_options *options = ls_opts;
1266 struct ls_data *d;
1267 struct ls_widths *w;
1268 unsigned short num_digits;
1269 unsigned tmp;
1270 struct osl_row *aft_row;
1271 long score;
1272 char *path;
1273
1274 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1275 ret = get_score_and_aft_row(row, &score, &aft_row);
1276 if (ret < 0)
1277 return ret;
1278 } else {
1279 aft_row = row;
1280 score = 0;
1281 }
1282 ret = get_audio_file_path_of_row(aft_row, &path);
1283 if (ret < 0)
1284 return ret;
1285 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1286 char *p = strrchr(path, '/');
1287 if (p)
1288 path = p + 1;
1289 }
1290 if (options->num_patterns) {
1291 for (i = 0; i < options->num_patterns; i++) {
1292 ret = fnmatch(options->patterns[i], path, 0);
1293 if (!ret)
1294 break;
1295 if (ret == FNM_NOMATCH)
1296 continue;
1297 return -E_FNMATCH;
1298 }
1299 if (i >= options->num_patterns) /* no match */
1300 return 1;
1301 }
1302 tmp = options->num_matching_paths++;
1303 if (options->num_matching_paths > options->array_size) {
1304 options->array_size++;
1305 options->array_size *= 2;
1306 options->data = para_realloc(options->data, options->array_size
1307 * sizeof(*options->data));
1308 }
1309 d = options->data + tmp;
1310 ret = get_afsi_of_row(aft_row, &d->afsi);
1311 if (ret < 0)
1312 return ret;
1313 ret = get_afhi_of_row(aft_row, &d->afhi);
1314 if (ret < 0)
1315 return ret;
1316 d->path = path;
1317 ret = get_hash_of_row(aft_row, &d->hash);
1318 if (ret < 0)
1319 goto err;
1320 w = &options->widths;
1321 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1322 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1323 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1324 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1325 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1326 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1327 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1328 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1329 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1330 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1331 /* get the number of chars to print this amount of time */
1332 num_digits = get_duration_width(d->afhi.seconds_total);
1333 w->duration_width = PARA_MAX(w->duration_width, num_digits);
1334 GET_NUM_DIGITS(d->afsi.amp, &num_digits);
1335 w->amp_width = PARA_MAX(w->amp_width, num_digits);
1336 num_digits = strlen(audio_format_name(d->afsi.audio_format_id));
1337 w->audio_format_width = PARA_MAX(w->audio_format_width, num_digits);
1338 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1339 GET_NUM_DIGITS(score, &num_digits);
1340 num_digits++; /* add one for the sign (space or "-") */
1341 w->score_width = PARA_MAX(w->score_width, num_digits);
1342 d->score = score;
1343 }
1344 return 1;
1345 err:
1346 return ret;
1347 }
1348
1349 static void com_ls_callback(int fd, const struct osl_object *query)
1350 {
1351 struct ls_options *opts = query->data;
1352 char *p, *pattern_start = (char *)query->data + sizeof(*opts);
1353 struct para_buffer b = {
1354 .max_size = shm_get_shmmax(),
1355 .flags = (opts->mode == LS_MODE_PARSER)? PBF_SIZE_PREFIX : 0,
1356 .max_size_handler = afs_max_size_handler,
1357 .private_data = &(struct afs_max_size_handler_data) {
1358 .fd = fd,
1359 .band = SBD_OUTPUT
1360 }
1361 };
1362 int i = 0, ret;
1363 time_t current_time;
1364
1365 if (opts->num_patterns) {
1366 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1367 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1368 opts->patterns[i] = p;
1369 p += strlen(p) + 1;
1370 }
1371 } else
1372 opts->patterns = NULL;
1373 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1374 ret = admissible_file_loop(opts, prepare_ls_row);
1375 else
1376 ret = osl(osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1377 prepare_ls_row));
1378 if (ret < 0)
1379 goto out;
1380 if (opts->num_matching_paths == 0) {
1381 if (opts->num_patterns > 0)
1382 para_printf(&b, "no matches\n");
1383 goto out;
1384 }
1385 ret = sort_matching_paths(opts);
1386 if (ret < 0)
1387 goto out;
1388 time(&current_time);
1389 if (opts->flags & LS_FLAG_REVERSE)
1390 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1391 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1392 if (ret < 0)
1393 goto out;
1394 }
1395 else
1396 for (i = 0; i < opts->num_matching_paths; i++) {
1397 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1398 if (ret < 0)
1399 goto out;
1400 }
1401 out:
1402 if (b.offset)
1403 pass_buffer_as_shm(fd, SBD_OUTPUT, b.buf, b.offset);
1404 free(b.buf);
1405 free(opts->data);
1406 free(opts->data_ptr);
1407 free(opts->patterns);
1408 }
1409
1410 /*
1411 * TODO: flags -h (sort by hash)
1412 */
1413 int com_ls(struct command_context *cc)
1414 {
1415 int i, ret;
1416 unsigned flags = 0;
1417 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1418 enum ls_listing_mode mode = LS_MODE_SHORT;
1419 struct ls_options opts = {.patterns = NULL};
1420 struct osl_object query = {.data = &opts, .size = sizeof(opts)};
1421
1422 for (i = 1; i < cc->argc; i++) {
1423 const char *arg = cc->argv[i];
1424 if (arg[0] != '-')
1425 break;
1426 if (!strcmp(arg, "--")) {
1427 i++;
1428 break;
1429 }
1430 if (!strncmp(arg, "-l", 2)) {
1431 if (!*(arg + 2)) {
1432 mode = LS_MODE_LONG;
1433 continue;
1434 }
1435 if (*(arg + 3))
1436 return -E_AFT_SYNTAX;
1437 switch(*(arg + 2)) {
1438 case 's':
1439 mode = LS_MODE_SHORT;
1440 continue;
1441 case 'l':
1442 mode = LS_MODE_LONG;
1443 continue;
1444 case 'v':
1445 mode = LS_MODE_VERBOSE;
1446 continue;
1447 case 'm':
1448 mode = LS_MODE_MBOX;
1449 continue;
1450 case 'c':
1451 mode = LS_MODE_CHUNKS;
1452 continue;
1453 case 'p':
1454 mode = LS_MODE_PARSER;
1455 continue;
1456 default:
1457 return -E_AFT_SYNTAX;
1458 }
1459 }
1460 if (!strcmp(arg, "-p")) {
1461 flags |= LS_FLAG_FULL_PATH;
1462 continue;
1463 }
1464 if (!strcmp(arg, "-a")) {
1465 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1466 continue;
1467 }
1468 if (!strcmp(arg, "-r")) {
1469 flags |= LS_FLAG_REVERSE;
1470 continue;
1471 }
1472 if (!strcmp(arg, "-d")) {
1473 flags |= LS_FLAG_UNIXDATE;
1474 continue;
1475 }
1476 if (!strncmp(arg, "-s", 2)) {
1477 if (!*(arg + 2) || *(arg + 3))
1478 return -E_AFT_SYNTAX;
1479 switch(*(arg + 2)) {
1480 case 'p':
1481 sort = LS_SORT_BY_PATH;
1482 continue;
1483 case 's': /* -ss implies -a */
1484 sort = LS_SORT_BY_SCORE;
1485 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1486 continue;
1487 case 'l':
1488 sort = LS_SORT_BY_LAST_PLAYED;
1489 continue;
1490 case 'n':
1491 sort = LS_SORT_BY_NUM_PLAYED;
1492 continue;
1493 case 'f':
1494 sort = LS_SORT_BY_FREQUENCY;
1495 continue;
1496 case 'c':
1497 sort = LS_SORT_BY_CHANNELS;
1498 continue;
1499 case 'i':
1500 sort = LS_SORT_BY_IMAGE_ID;
1501 continue;
1502 case 'y':
1503 sort = LS_SORT_BY_LYRICS_ID;
1504 continue;
1505 case 'b':
1506 sort = LS_SORT_BY_BITRATE;
1507 continue;
1508 case 'd':
1509 sort = LS_SORT_BY_DURATION;
1510 continue;
1511 case 'a':
1512 sort = LS_SORT_BY_AUDIO_FORMAT;
1513 continue;
1514 default:
1515 return -E_AFT_SYNTAX;
1516 }
1517 }
1518 return -E_AFT_SYNTAX;
1519 }
1520 opts.flags = flags;
1521 opts.sorting = sort;
1522 opts.mode = mode;
1523 opts.num_patterns = cc->argc - i;
1524 ret = send_option_arg_callback_request(&query, opts.num_patterns,
1525 cc->argv + i, com_ls_callback, afs_cb_result_handler, cc);
1526 return ret;
1527 }
1528
1529 /**
1530 * Call the given function for each file in the audio file table.
1531 *
1532 * \param private_data An arbitrary data pointer, passed to \a func.
1533 * \param func The custom function to be called.
1534 *
1535 * \return Standard.
1536 */
1537 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1538 {
1539 return osl(osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1540 func));
1541 }
1542
1543 static struct osl_row *find_hash_sister(unsigned char *hash)
1544 {
1545 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
1546 struct osl_row *row;
1547
1548 osl_get_row(audio_file_table, AFTCOL_HASH, &obj, &row);
1549 return row;
1550 }
1551
1552 /** The format of the data stored by save_audio_file_data(). */
1553 enum com_add_buffer_offsets {
1554 /** afhi (if present) starts here. */
1555 CAB_AFHI_OFFSET_POS = 0,
1556 /** Start of the chunk table (if present). */
1557 CAB_CHUNKS_OFFSET_POS = 2,
1558 /** Audio format id. */
1559 CAB_AUDIO_FORMAT_OFFSET = 4,
1560 /** Flags given to the add command. */
1561 CAB_FLAGS_OFFSET = 5,
1562 /** The hash of the audio file being added. */
1563 CAB_HASH_OFFSET = 9,
1564 /** Start of the path of the audio file. */
1565 CAB_PATH_OFFSET = (CAB_HASH_OFFSET + HASH_SIZE),
1566 };
1567
1568 /*
1569 * Store the given data to a single buffer. Doesn't need the audio file selector
1570 * info struct as the server knows it as well.
1571 *
1572 * It's OK to call this with afhi == NULL. In this case, the audio format
1573 * handler info won't be stored in the buffer.
1574 */
1575 static void save_add_callback_buffer(unsigned char *hash, const char *path,
1576 struct afh_info *afhi, uint32_t flags,
1577 uint8_t audio_format_num, struct osl_object *obj)
1578 {
1579 size_t path_len = strlen(path) + 1;
1580 size_t afhi_size = sizeof_afhi_buf(afhi);
1581 size_t size = CAB_PATH_OFFSET + path_len + afhi_size
1582 + sizeof_chunk_table(afhi);
1583 char *buf = para_malloc(size);
1584 uint16_t pos;
1585
1586 write_u8(buf + CAB_AUDIO_FORMAT_OFFSET, audio_format_num);
1587 write_u32(buf + CAB_FLAGS_OFFSET, flags);
1588
1589 memcpy(buf + CAB_HASH_OFFSET, hash, HASH_SIZE);
1590 strcpy(buf + CAB_PATH_OFFSET, path);
1591
1592 pos = CAB_PATH_OFFSET + path_len;
1593 PARA_DEBUG_LOG("size: %zu, afhi starts at %d\n", size, pos);
1594 PARA_DEBUG_LOG("last afhi byte: %p, pos %zu\n", buf + pos + afhi_size - 1,
1595 pos + afhi_size - 1);
1596 write_u16(buf + CAB_AFHI_OFFSET_POS, pos);
1597 save_afhi(afhi, buf + pos);
1598
1599 pos += afhi_size;
1600 PARA_DEBUG_LOG("size: %zu, chunks start at %d\n", size, pos);
1601 write_u16(buf + CAB_CHUNKS_OFFSET_POS, pos);
1602 if (afhi)
1603 save_chunk_table(afhi, buf + pos);
1604 PARA_DEBUG_LOG("last byte in buf: %p\n", buf + size - 1);
1605 obj->data = buf;
1606 obj->size = size;
1607 }
1608
1609 /*
1610
1611 Overview of the add command.
1612
1613 Input: What was passed to the callback by the command handler.
1614 ~~~~~~
1615 HS: Hash sister. Whether an audio file with identical hash
1616 already exists in the osl database.
1617
1618 PB: Path brother. Whether a file with the given path exists
1619 in the table.
1620
1621 F: Force flag given. Whether add was called with -f.
1622
1623 output: Action performed by the callback.
1624 ~~~~~~~
1625 AFHI: Whether afhi and chunk table are computed and sent.
1626 ACTION: Table modifications to be done by the callback.
1627
1628 +----+----+---+------+---------------------------------------------------+
1629 | HS | PB | F | AFHI | ACTION
1630 +----+----+---+------+---------------------------------------------------+
1631 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1632 | | update path, keep afsi
1633 +----+----+---+------+---------------------------------------------------+
1634 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1635 | | otherwise: remove PB, HS: update path, keep afhi,
1636 | | afsi.
1637 +----+----+---+------+---------------------------------------------------+
1638 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1639 | | HS, keep afsi
1640 +----+----+---+------+---------------------------------------------------+
1641 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1642 +----+----+---+------+---------------------------------------------------+
1643 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1644 | | (force has no effect)
1645 +----+----+---+------+---------------------------------------------------+
1646 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1647 +----+----+---+------+---------------------------------------------------+
1648 | N | N | Y | Y | (new file) create new entry (force has no effect)
1649 +----+----+---+------+---------------------------------------------------+
1650 | N | N | N | Y | (new file) create new entry
1651 +----+----+---+------+---------------------------------------------------+
1652
1653 Notes:
1654
1655 afhi <=> force or no HS
1656 F => AFHI
1657
1658 */
1659
1660 /** Flags passed to the add command. */
1661 enum com_add_flags {
1662 /** Skip paths that exist already. */
1663 ADD_FLAG_LAZY = 1,
1664 /** Force adding. */
1665 ADD_FLAG_FORCE = 2,
1666 /** Print what is being done. */
1667 ADD_FLAG_VERBOSE = 4,
1668 /** Try to add files with unknown suffixes. */
1669 ADD_FLAG_ALL = 8,
1670 };
1671
1672 static void com_add_callback(int fd, const struct osl_object *query)
1673 {
1674 char *buf = query->data, *path;
1675 struct osl_row *pb, *aft_row;
1676 struct osl_row *hs;
1677 struct osl_object objs[NUM_AFT_COLUMNS];
1678 unsigned char *hash;
1679 char asc[2 * HASH_SIZE + 1];
1680 int ret;
1681 char afsi_buf[AFSI_SIZE];
1682 uint32_t flags = read_u32(buf + CAB_FLAGS_OFFSET);
1683 struct afs_info default_afsi = {.last_played = 0};
1684 struct para_buffer msg = {
1685 .max_size = shm_get_shmmax(),
1686 .max_size_handler = afs_max_size_handler,
1687 .private_data = &(struct afs_max_size_handler_data) {
1688 .fd = fd,
1689 .band = SBD_OUTPUT
1690 }
1691 };
1692 uint16_t afhi_offset, chunks_offset;
1693
1694 hash = (unsigned char *)buf + CAB_HASH_OFFSET;
1695 hash_to_asc(hash, asc);
1696 objs[AFTCOL_HASH].data = buf + CAB_HASH_OFFSET;
1697 objs[AFTCOL_HASH].size = HASH_SIZE;
1698
1699 path = buf + CAB_PATH_OFFSET;
1700 objs[AFTCOL_PATH].data = path;
1701 objs[AFTCOL_PATH].size = strlen(path) + 1;
1702
1703 PARA_INFO_LOG("request to add %s\n", path);
1704 hs = find_hash_sister(hash);
1705 ret = aft_get_row_of_path(path, &pb);
1706 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1707 goto out;
1708 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1709 if (flags & ADD_FLAG_VERBOSE)
1710 ret = para_printf(&msg, "ignoring duplicate\n");
1711 else
1712 ret = 1;
1713 goto out;
1714 }
1715 if (hs && hs != pb) {
1716 struct osl_object obj;
1717 if (pb) { /* hs trumps pb, remove pb */
1718 if (flags & ADD_FLAG_VERBOSE) {
1719 ret = para_printf(&msg, "removing path brother\n");
1720 if (ret < 0)
1721 goto out;
1722 }
1723 ret = osl(osl_del_row(audio_file_table, pb));
1724 if (ret < 0)
1725 goto out;
1726 pb = NULL;
1727 }
1728 /* file rename, update hs' path */
1729 if (flags & ADD_FLAG_VERBOSE) {
1730 ret = osl(osl_get_object(audio_file_table, hs,
1731 AFTCOL_PATH, &obj));
1732 if (ret < 0)
1733 goto out;
1734 ret = para_printf(&msg, "renamed from %s\n", (char *)obj.data);
1735 if (ret < 0)
1736 goto out;
1737 }
1738 ret = osl(osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1739 &objs[AFTCOL_PATH]));
1740 if (ret < 0)
1741 goto out;
1742 afs_event(AUDIO_FILE_RENAME, &msg, hs);
1743 if (!(flags & ADD_FLAG_FORCE))
1744 goto out;
1745 }
1746 /* no hs or force mode, child must have sent afhi */
1747 afhi_offset = read_u16(buf + CAB_AFHI_OFFSET_POS);
1748 chunks_offset = read_u16(buf + CAB_CHUNKS_OFFSET_POS);
1749
1750 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1751 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1752 ret = -E_NO_AFHI;
1753 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1754 goto out;
1755 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1756 objs[AFTCOL_CHUNKS].size = query->size - chunks_offset;
1757 if (pb && !hs) { /* update pb's hash */
1758 char old_asc[2 * HASH_SIZE + 1];
1759 unsigned char *old_hash;
1760 ret = get_hash_of_row(pb, &old_hash);
1761 if (ret < 0)
1762 goto out;
1763 hash_to_asc(old_hash, old_asc);
1764 if (flags & ADD_FLAG_VERBOSE) {
1765 ret = para_printf(&msg, "file change: %s -> %s\n",
1766 old_asc, asc);
1767 if (ret < 0)
1768 goto out;
1769 }
1770 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1771 &objs[AFTCOL_HASH]);
1772 if (ret < 0)
1773 goto out;
1774 }
1775 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1776 struct osl_row *row = pb? pb : hs;
1777 /* update afhi and chunk_table */
1778 if (flags & ADD_FLAG_VERBOSE) {
1779 ret = para_printf(&msg, "updating afhi and chunk table\n");
1780 if (ret < 0)
1781 goto out;
1782 }
1783 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1784 &objs[AFTCOL_AFHI]));
1785 if (ret < 0)
1786 goto out;
1787 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1788 &objs[AFTCOL_CHUNKS]));
1789 if (ret < 0)
1790 goto out;
1791 afs_event(AFHI_CHANGE, &msg, row);
1792 goto out;
1793 }
1794 /* new entry, use default afsi */
1795 if (flags & ADD_FLAG_VERBOSE) {
1796 ret = para_printf(&msg, "new file\n");
1797 if (ret < 0)
1798 goto out;
1799 }
1800 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1801 default_afsi.audio_format_id = read_u8(buf + CAB_AUDIO_FORMAT_OFFSET);
1802
1803 objs[AFTCOL_AFSI].data = &afsi_buf;
1804 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1805 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1806 ret = osl(osl_add_and_get_row(audio_file_table, objs, &aft_row));
1807 afs_event(AUDIO_FILE_ADD, &msg, aft_row);
1808 out:
1809 if (ret < 0)
1810 para_printf(&msg, "%s\n", para_strerror(-ret));
1811 if (msg.offset)
1812 pass_buffer_as_shm(fd, SBD_OUTPUT, msg.buf, msg.offset);
1813 free(msg.buf);
1814 }
1815
1816 /** Used by com_add(). */
1817 struct private_add_data {
1818 /** The pointer passed to the original command handler. */
1819 struct command_context *cc;
1820 /** The given add flags. */
1821 uint32_t flags;
1822 };
1823
1824 static void path_brother_callback(int fd, const struct osl_object *query)
1825 {
1826 char *path = query->data;
1827 struct osl_row *path_brother;
1828 int ret = aft_get_row_of_path(path, &path_brother);
1829 if (ret < 0)
1830 return;
1831 pass_buffer_as_shm(fd, SBD_OUTPUT, (char *)&path_brother,
1832 sizeof(path_brother));
1833 }
1834
1835 static void hash_sister_callback(int fd, const struct osl_object *query)
1836 {
1837 unsigned char *hash = query->data;
1838 struct osl_row *hash_sister;
1839
1840 hash_sister = find_hash_sister(hash);
1841 if (!hash_sister)
1842 return;
1843 pass_buffer_as_shm(fd, SBD_OUTPUT, (char *)&hash_sister,
1844 sizeof(hash_sister));
1845 }
1846
1847 static int get_row_pointer_from_result(struct osl_object *result,
1848 __a_unused uint8_t band, void *private)
1849 {
1850 struct osl_row **row = private;
1851 *row = *(struct osl_row **)(result->data);
1852 return 1;
1853 }
1854
1855 static int add_one_audio_file(const char *path, void *private_data)
1856 {
1857 int ret, send_ret = 1, fd;
1858 uint8_t format_num = -1;
1859 struct private_add_data *pad = private_data;
1860 struct afh_info afhi, *afhi_ptr = NULL;
1861 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1862 struct osl_object map, obj = {.data = NULL}, query;
1863 unsigned char hash[HASH_SIZE];
1864
1865 ret = guess_audio_format(path);
1866 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL))
1867 goto out_free;
1868 query.data = (char *)path;
1869 query.size = strlen(path) + 1;
1870 ret = send_callback_request(path_brother_callback, &query,
1871 get_row_pointer_from_result, &pb);
1872 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1873 goto out_free;
1874 ret = 1;
1875 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1876 if (pad->flags & ADD_FLAG_VERBOSE)
1877 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1878 "lazy-ignore: %s\n", path);
1879 goto out_free;
1880 }
1881 /* We still want to add this file. Compute its hash. */
1882 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &fd);
1883 if (ret < 0)
1884 goto out_free;
1885 hash_function(map.data, map.size, hash);
1886
1887 /* Check whether the database contains a file with the same hash. */
1888 query.data = hash;
1889 query.size = HASH_SIZE;
1890 ret = send_callback_request(hash_sister_callback, &query,
1891 get_row_pointer_from_result, &hs);
1892 if (ret < 0)
1893 goto out_unmap;
1894 /* Return success if we already know this file. */
1895 ret = 1;
1896 if (pb && hs && hs == pb && !(pad->flags & ADD_FLAG_FORCE)) {
1897 if (pad->flags & ADD_FLAG_VERBOSE)
1898 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1899 "%s exists, not forcing update\n", path);
1900 goto out_unmap;
1901 }
1902 /*
1903 * We won't recalculate the audio format info and the chunk table if
1904 * there is a hash sister and FORCE was not given.
1905 */
1906 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1907 ret = compute_afhi(path, map.data, map.size, fd, &afhi);
1908 if (ret < 0)
1909 goto out_unmap;
1910 format_num = ret;
1911 afhi_ptr = &afhi;
1912 }
1913 munmap(map.data, map.size);
1914 close(fd);
1915 if (pad->flags & ADD_FLAG_VERBOSE) {
1916 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1917 "adding %s\n", path);
1918 if (send_ret < 0)
1919 goto out_free;
1920 }
1921 save_add_callback_buffer(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1922 /* Ask afs to consider this entry for adding. */
1923 ret = send_callback_request(com_add_callback, &obj,
1924 afs_cb_result_handler, pad->cc);
1925 goto out_free;
1926
1927 out_unmap:
1928 close(fd);
1929 munmap(map.data, map.size);
1930 out_free:
1931 if (ret < 0 && send_ret >= 0)
1932 send_ret = send_sb_va(&pad->cc->scc, SBD_ERROR_LOG,
1933 "failed to add %s (%s)\n", path, para_strerror(-ret));
1934 free(obj.data);
1935 clear_afhi(afhi_ptr);
1936 /* Stop adding files only on send errors. */
1937 return send_ret;
1938 }
1939
1940 int com_add(struct command_context *cc)
1941 {
1942 int i, ret;
1943 struct private_add_data pad = {.cc = cc, .flags = 0};
1944 struct stat statbuf;
1945
1946 for (i = 1; i < cc->argc; i++) {
1947 const char *arg = cc->argv[i];
1948 if (arg[0] != '-')
1949 break;
1950 if (!strcmp(arg, "--")) {
1951 i++;
1952 break;
1953 }
1954 if (!strcmp(arg, "-a")) {
1955 pad.flags |= ADD_FLAG_ALL;
1956 continue;
1957 }
1958 if (!strcmp(arg, "-l")) {
1959 pad.flags |= ADD_FLAG_LAZY;
1960 continue;
1961 }
1962 if (!strcmp(arg, "-f")) {
1963 pad.flags |= ADD_FLAG_FORCE;
1964 continue;
1965 }
1966 if (!strcmp(arg, "-v")) {
1967 pad.flags |= ADD_FLAG_VERBOSE;
1968 continue;
1969 }
1970 }
1971 if (cc->argc <= i)
1972 return -E_AFT_SYNTAX;
1973 for (; i < cc->argc; i++) {
1974 char *path;
1975 ret = verify_path(cc->argv[i], &path);
1976 if (ret < 0) {
1977 ret = send_sb_va(&cc->scc, SBD_ERROR_LOG, "%s: %s\n",
1978 cc->argv[i], para_strerror(-ret));
1979 if (ret < 0)
1980 return ret;
1981 continue;
1982 }
1983 ret = stat(path, &statbuf);
1984 if (ret < 0) {
1985 ret = send_sb_va(&cc->scc, SBD_ERROR_LOG,
1986 "failed to stat %s (%s)\n", path,
1987 strerror(errno));
1988 free(path);
1989 if (ret < 0)
1990 return ret;
1991 continue;
1992 }
1993 if (S_ISDIR(statbuf.st_mode))
1994 ret = for_each_file_in_dir(path, add_one_audio_file,
1995 &pad);
1996 else
1997 ret = add_one_audio_file(path, &pad);
1998 if (ret < 0) {
1999 send_sb_va(&cc->scc, SBD_OUTPUT, "%s: %s\n", path,
2000 para_strerror(-ret));
2001 free(path);
2002 return ret;
2003 }
2004 free(path);
2005 }
2006 return 1;
2007 }
2008
2009 /**
2010 * Flags used by the touch command.
2011 *
2012 * \sa com_touch().
2013 */
2014 enum touch_flags {
2015 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
2016 TOUCH_FLAG_FNM_PATHNAME = 1,
2017 /** Activates verbose mode. */
2018 TOUCH_FLAG_VERBOSE = 2
2019 };
2020
2021 /** Options used by com_touch(). */
2022 struct com_touch_options {
2023 /** New num_played value. */
2024 int32_t num_played;
2025 /** New last played count. */
2026 int64_t last_played;
2027 /** New lyrics id. */
2028 int32_t lyrics_id;
2029 /** New image id. */
2030 int32_t image_id;
2031 /** New amplification value. */
2032 int32_t amp;
2033 /** Command line flags (see \ref touch_flags). */
2034 unsigned flags;
2035 };
2036
2037 /** Data passed to the action handler of com_touch(). */
2038 struct touch_action_data {
2039 /** Command line options (see \ref com_touch_options). */
2040 struct com_touch_options *cto;
2041 /** Message buffer. */
2042 struct para_buffer pb;
2043 };
2044
2045 static int touch_audio_file(__a_unused struct osl_table *table,
2046 struct osl_row *row, const char *name, void *data)
2047 {
2048 struct touch_action_data *tad = data;
2049 struct osl_object obj;
2050 struct afs_info old_afsi, new_afsi;
2051 int ret, no_options = tad->cto->num_played < 0 && tad->cto->last_played < 0 &&
2052 tad->cto->lyrics_id < 0 && tad->cto->image_id < 0 && tad->cto->amp < 0;
2053 struct afsi_change_event_data aced;
2054
2055 ret = get_afsi_object_of_row(row, &obj);
2056 if (ret < 0)
2057 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2058 ret = load_afsi(&old_afsi, &obj);
2059 if (ret < 0)
2060 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2061 new_afsi = old_afsi;
2062 if (no_options) {
2063 new_afsi.num_played++;
2064 new_afsi.last_played = time(NULL);
2065 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2066 ret = para_printf(&tad->pb, "%s: num_played = %u, "
2067 "last_played = now()\n", name,
2068 new_afsi.num_played);
2069 if (ret < 0)
2070 return ret;
2071 }
2072 } else {
2073 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2074 ret = para_printf(&tad->pb, "touching %s\n", name);
2075 if (ret < 0)
2076 return ret;
2077 }
2078 if (tad->cto->lyrics_id >= 0)
2079 new_afsi.lyrics_id = tad->cto->lyrics_id;
2080 if (tad->cto->image_id >= 0)
2081 new_afsi.image_id = tad->cto->image_id;
2082 if (tad->cto->num_played >= 0)
2083 new_afsi.num_played = tad->cto->num_played;
2084 if (tad->cto->last_played >= 0)
2085 new_afsi.last_played = tad->cto->last_played;
2086 if (tad->cto->amp >= 0)
2087 new_afsi.amp = tad->cto->amp;
2088 }
2089 save_afsi(&new_afsi, &obj); /* in-place update */
2090 aced.aft_row = row;
2091 aced.old_afsi = &old_afsi;
2092 afs_event(AFSI_CHANGE, &tad->pb, &aced);
2093 return 1;
2094 }
2095
2096 static void com_touch_callback(int fd, const struct osl_object *query)
2097 {
2098 struct touch_action_data tad = {.cto = query->data,
2099 .pb = {
2100 .max_size = shm_get_shmmax(),
2101 .private_data = &fd,
2102 .max_size_handler = afs_max_size_handler
2103 }
2104 };
2105 int ret, ret2 = 0;
2106 struct pattern_match_data pmd = {
2107 .table = audio_file_table,
2108 .loop_col_num = AFTCOL_HASH,
2109 .match_col_num = AFTCOL_PATH,
2110 .patterns = {.data = (char *)query->data + sizeof(*tad.cto),
2111 .size = query->size - sizeof(*tad.cto)},
2112 .data = &tad,
2113 .action = touch_audio_file
2114 };
2115 if (tad.cto->flags & TOUCH_FLAG_FNM_PATHNAME)
2116 pmd.fnmatch_flags |= FNM_PATHNAME;
2117 ret = for_each_matching_row(&pmd);
2118 if (ret < 0)
2119 ret2 = para_printf(&tad.pb, "%s\n", para_strerror(-ret));
2120 else if (pmd.num_matches == 0)
2121 ret2 = para_printf(&tad.pb, "no matches\n");
2122 if (ret2 >= 0 && tad.pb.offset)
2123 pass_buffer_as_shm(fd, SBD_OUTPUT, tad.pb.buf, tad.pb.offset);
2124 free(tad.pb.buf);
2125 }
2126
2127 int com_touch(struct command_context *cc)
2128 {
2129 struct com_touch_options cto = {
2130 .num_played = -1,
2131 .last_played = -1,
2132 .lyrics_id = -1,
2133 .image_id = -1,
2134 .amp = -1,
2135 };
2136 struct osl_object query = {.data = &cto, .size = sizeof(cto)};
2137 int i, ret;
2138
2139
2140 for (i = 1; i < cc->argc; i++) {
2141 const char *arg = cc->argv[i];
2142 if (arg[0] != '-')
2143 break;
2144 if (!strcmp(arg, "--")) {
2145 i++;
2146 break;
2147 }
2148 if (!strncmp(arg, "-n=", 3)) {
2149 ret = para_atoi32(arg + 3, &cto.num_played);
2150 if (ret < 0)
2151 return ret;
2152 continue;
2153 }
2154 if (!strncmp(arg, "-l=", 3)) {
2155 ret = para_atoi64(arg + 3, &cto.last_played);
2156 if (ret < 0)
2157 return ret;
2158 continue;
2159 }
2160 if (!strncmp(arg, "-y=", 3)) {
2161 ret = para_atoi32(arg + 3, &cto.lyrics_id);
2162 if (ret < 0)
2163 return ret;
2164 continue;
2165 }
2166 if (!strncmp(arg, "-i=", 3)) {
2167 ret = para_atoi32(arg + 3, &cto.image_id);
2168 if (ret < 0)
2169 return ret;
2170 continue;
2171 }
2172 if (!strncmp(arg, "-a=", 3)) {
2173 int32_t val;
2174 ret = para_atoi32(arg + 3, &val);
2175 if (ret < 0)
2176 return ret;
2177 if (val < 0 || val > 255)
2178 return -ERRNO_TO_PARA_ERROR(EINVAL);
2179 cto.amp = val;
2180 continue;
2181 }
2182 if (!strcmp(arg, "-p")) {
2183 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
2184 continue;
2185 }
2186 if (!strcmp(arg, "-v")) {
2187 cto.flags |= TOUCH_FLAG_VERBOSE;
2188 continue;
2189 }
2190 break; /* non-option starting with dash */
2191 }
2192 if (i >= cc->argc)
2193 return -E_AFT_SYNTAX;
2194 ret = send_option_arg_callback_request(&query, cc->argc - i,
2195 cc->argv + i, com_touch_callback, afs_cb_result_handler, cc);
2196 if (ret < 0)
2197 send_strerror(cc, -ret);
2198 return ret;
2199 }
2200
2201 /** Flags for com_rm(). */
2202 enum rm_flags {
2203 /** -v */
2204 RM_FLAG_VERBOSE = 1,
2205 /** -f */
2206 RM_FLAG_FORCE = 2,
2207 /** -p */
2208 RM_FLAG_FNM_PATHNAME = 4
2209 };
2210
2211 /** Data passed to the action handler of com_rm(). */
2212 struct com_rm_action_data {
2213 /** Command line flags ((see \ref rm_flags). */
2214 uint32_t flags;
2215 /** Message buffer. */
2216 struct para_buffer pb;
2217 };
2218
2219 static int remove_audio_file(__a_unused struct osl_table *table,
2220 struct osl_row *row, const char *name, void *data)
2221 {
2222 struct com_rm_action_data *crd = data;
2223 int ret;
2224
2225 if (crd->flags & RM_FLAG_VERBOSE) {
2226 ret = para_printf(&crd->pb, "removing %s\n", name);
2227 if (ret < 0)
2228 return ret;
2229 }
2230 afs_event(AUDIO_FILE_REMOVE, &crd->pb, row);
2231 ret = osl(osl_del_row(audio_file_table, row));
2232 if (ret < 0)
2233 para_printf(&crd->pb, "%s: %s\n", name, para_strerror(-ret));
2234 return ret;
2235 }
2236
2237 static void com_rm_callback(int fd, const struct osl_object *query)
2238 {
2239 struct com_rm_action_data crd = {.flags = *(uint32_t *)query->data,
2240 .pb = {
2241 .max_size = shm_get_shmmax(),
2242 .private_data = &fd,
2243 .max_size_handler = afs_max_size_handler
2244 }
2245 };
2246 int ret;
2247 struct pattern_match_data pmd = {
2248 .table = audio_file_table,
2249 .loop_col_num = AFTCOL_HASH,
2250 .match_col_num = AFTCOL_PATH,
2251 .patterns = {.data = (char *)query->data + sizeof(uint32_t),
2252 .size = query->size - sizeof(uint32_t)},
2253 .data = &crd,
2254 .action = remove_audio_file
2255 };
2256 if (crd.flags & RM_FLAG_FNM_PATHNAME)
2257 pmd.fnmatch_flags |= FNM_PATHNAME;
2258 ret = for_each_matching_row(&pmd);
2259 if (ret < 0) {
2260 para_printf(&crd.pb, "%s\n", para_strerror(-ret));
2261 return;
2262 }
2263 if ((pmd.num_matches == 0) && !(crd.flags & RM_FLAG_FORCE))
2264 ret = para_printf(&crd.pb, "no matches -- nothing removed\n");
2265 else if (crd.flags & RM_FLAG_VERBOSE) {
2266 ret = para_printf(&crd.pb, "removed %u files\n",
2267 pmd.num_matches);
2268 }
2269 if (ret >= 0 && crd.pb.offset)
2270 pass_buffer_as_shm(fd, SBD_OUTPUT, crd.pb.buf, crd.pb.offset);
2271 free(crd.pb.buf);
2272 }
2273
2274 /* TODO options: -r (recursive) */
2275 int com_rm(struct command_context *cc)
2276 {
2277 uint32_t flags = 0;
2278 struct osl_object query = {.data = &flags, .size = sizeof(flags)};
2279 int i, ret;
2280
2281 for (i = 1; i < cc->argc; i++) {
2282 const char *arg = cc->argv[i];
2283 if (arg[0] != '-')
2284 break;
2285 if (!strcmp(arg, "--")) {
2286 i++;
2287 break;
2288 }
2289 if (!strcmp(arg, "-f")) {
2290 flags |= RM_FLAG_FORCE;
2291 continue;
2292 }
2293 if (!strcmp(arg, "-p")) {
2294 flags |= RM_FLAG_FNM_PATHNAME;
2295 continue;
2296 }
2297 if (!strcmp(arg, "-v")) {
2298 flags |= RM_FLAG_VERBOSE;
2299 continue;
2300 }
2301 break;
2302 }
2303 if (i >= cc->argc)
2304 return -E_AFT_SYNTAX;
2305 ret = send_option_arg_callback_request(&query, cc->argc - i,
2306 cc->argv + i, com_rm_callback, afs_cb_result_handler, cc);
2307 if (ret < 0)
2308 send_strerror(cc, -ret);
2309 return ret;
2310 }
2311
2312 /**
2313 * Flags used by the cpsi command.
2314 *
2315 * \sa com_cpsi().
2316 */
2317 enum cpsi_flags {
2318 /** Whether the lyrics id should be copied. */
2319 CPSI_FLAG_COPY_LYRICS_ID = 1,
2320 /** Whether the image id should be copied. */
2321 CPSI_FLAG_COPY_IMAGE_ID = 2,
2322 /** Whether the lastplayed time should be copied. */
2323 CPSI_FLAG_COPY_LASTPLAYED = 4,
2324 /** Whether the numplayed count should be copied. */
2325 CPSI_FLAG_COPY_NUMPLAYED = 8,
2326 /** Whether the attributes should be copied. */
2327 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2328 /** Activates verbose mode. */
2329 CPSI_FLAG_VERBOSE = 32,
2330 };
2331
2332 /** Data passed to the action handler of com_cpsi(). */
2333 struct cpsi_action_data {
2334 /** command line flags (see \ref cpsi_flags). */
2335 unsigned flags;
2336 /** Message buffer. */
2337 struct para_buffer pb;
2338 /** Values are copied from here. */
2339 struct afs_info source_afsi;
2340 };
2341
2342 static int copy_selector_info(__a_unused struct osl_table *table,
2343 struct osl_row *row, const char *name, void *data)
2344 {
2345 struct cpsi_action_data *cad = data;
2346 struct osl_object target_afsi_obj;
2347 int ret;
2348 struct afs_info old_afsi, target_afsi;
2349 struct afsi_change_event_data aced;
2350
2351 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2352 if (ret < 0)
2353 return ret;
2354 load_afsi(&target_afsi, &target_afsi_obj);
2355 old_afsi = target_afsi;
2356 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2357 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2358 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2359 target_afsi.image_id = cad->source_afsi.image_id;
2360 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2361 target_afsi.last_played = cad->source_afsi.last_played;
2362 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2363 target_afsi.num_played = cad->source_afsi.num_played;
2364 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2365 target_afsi.attributes = cad->source_afsi.attributes;
2366 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2367 if (cad->flags & CPSI_FLAG_VERBOSE) {
2368 ret = para_printf(&cad->pb, "copied afsi to %s\n", name);
2369 if (ret < 0)
2370 return ret;
2371 }
2372 aced.aft_row = row;
2373 aced.old_afsi = &old_afsi;
2374 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2375 return 1;
2376 }
2377
2378 static void com_cpsi_callback(int fd, const struct osl_object *query)
2379 {
2380 struct cpsi_action_data cad = {
2381 .flags = *(unsigned *)query->data,
2382 .pb = {
2383 .max_size = shm_get_shmmax(),
2384 .private_data = &fd,
2385 .max_size_handler = afs_max_size_handler
2386 }
2387 };
2388 int ret;
2389 char *source_path = (char *)query->data + sizeof(cad.flags);
2390 struct pattern_match_data pmd = {
2391 .table = audio_file_table,
2392 .loop_col_num = AFTCOL_HASH,
2393 .match_col_num = AFTCOL_PATH,
2394 .patterns = {.data = source_path + strlen(source_path) + 1,
2395 .size = query->size - sizeof(cad.flags)
2396 - strlen(source_path) - 1},
2397 .data = &cad,
2398 .action = copy_selector_info
2399 };
2400
2401 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2402 if (ret < 0)
2403 goto out;
2404 ret = for_each_matching_row(&pmd);
2405 out:
2406 if (ret < 0)
2407 para_printf(&cad.pb, "%s\n", para_strerror(-ret));
2408 else if (pmd.num_matches > 0) {
2409 if (cad.flags & CPSI_FLAG_VERBOSE)
2410 para_printf(&cad.pb, "copied requested afsi from %s "
2411 "to %u files\n", source_path, pmd.num_matches);
2412 } else
2413 para_printf(&cad.pb, "no matches - nothing copied\n");
2414 if (cad.pb.offset)
2415 pass_buffer_as_shm(fd, SBD_OUTPUT, cad.pb.buf, cad.pb.offset);
2416 free(cad.pb.buf);
2417 }
2418
2419 int com_cpsi(struct command_context *cc)
2420 {
2421 unsigned flags = 0;
2422 int i, ret;
2423 struct osl_object options = {.data = &flags, .size = sizeof(flags)};
2424
2425 for (i = 1; i < cc->argc; i++) {
2426 const char *arg = cc->argv[i];
2427 if (arg[0] != '-')
2428 break;
2429 if (!strcmp(arg, "--")) {
2430 i++;
2431 break;
2432 }
2433 if (!strcmp(arg, "-y")) {
2434 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2435 continue;
2436 }
2437 if (!strcmp(arg, "-i")) {
2438 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2439 continue;
2440 }
2441 if (!strcmp(arg, "-l")) {
2442 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2443 continue;
2444 }
2445 if (!strcmp(arg, "-n")) {
2446 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2447 continue;
2448 }
2449 if (!strcmp(arg, "-a")) {
2450 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2451 continue;
2452 }
2453 if (!strcmp(arg, "-v")) {
2454 flags |= CPSI_FLAG_VERBOSE;
2455 continue;
2456 }
2457 break;
2458 }
2459 if (i + 1 >= cc->argc) /* need at least source file and pattern */
2460 return -E_AFT_SYNTAX;
2461 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2462 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2463 ret = send_option_arg_callback_request(&options, cc->argc - i,
2464 cc->argv + i, com_cpsi_callback, afs_cb_result_handler, cc);
2465 if (ret < 0)
2466 send_strerror(cc, -ret);
2467 return ret;
2468 }
2469
2470 struct change_atts_data {
2471 uint64_t add_mask, del_mask;
2472 struct para_buffer pb;
2473 };
2474
2475 static int change_atts(__a_unused struct osl_table *table,
2476 struct osl_row *row, __a_unused const char *name, void *data)
2477 {
2478 int ret;
2479 struct osl_object obj;
2480 struct afs_info old_afsi, new_afsi;
2481 struct afsi_change_event_data aced = {
2482 .aft_row = row,
2483 .old_afsi = &old_afsi
2484 };
2485 struct change_atts_data *cad = data;
2486
2487 ret = get_afsi_object_of_row(row, &obj);
2488 if (ret < 0)
2489 return ret;
2490 ret = load_afsi(&old_afsi, &obj);
2491 if (ret < 0)
2492 return ret;
2493 new_afsi = old_afsi;
2494 new_afsi.attributes |= cad->add_mask;
2495 new_afsi.attributes &= ~cad->del_mask;
2496 save_afsi(&new_afsi, &obj); /* in-place update */
2497 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2498 return 1;
2499 }
2500
2501 static void com_setatt_callback(int fd, const struct osl_object *query)
2502 {
2503 char *p;
2504 int ret;
2505 size_t len;
2506 struct change_atts_data cad = {
2507 .pb = {
2508 .max_size = shm_get_shmmax(),
2509 .max_size_handler = afs_max_size_handler,
2510 .private_data = &(struct afs_max_size_handler_data) {
2511 .fd = fd,
2512 .band = SBD_OUTPUT
2513 }
2514 }
2515 };
2516 struct pattern_match_data pmd = {
2517 .table = audio_file_table,
2518 .loop_col_num = AFTCOL_HASH,
2519 .match_col_num = AFTCOL_PATH,
2520 .pm_flags = PM_SKIP_EMPTY_NAME,
2521 .data = &cad,
2522 .action = change_atts
2523 };
2524
2525 for (p = query->data; p < (char *)query->data + query->size; p += len + 1) {
2526 char c;
2527 unsigned char bitnum;
2528
2529 len = strlen(p);
2530 ret = -E_ATTR_SYNTAX;
2531 if (len == 0)
2532 goto out;
2533 c = p[len - 1];
2534 if (c != '+' && c != '-')
2535 break;
2536 p[len - 1] = '\0';
2537 ret = get_attribute_bitnum_by_name(p, &bitnum);
2538 if (ret < 0)
2539 goto out;
2540 if (c == '+')
2541 cad.add_mask |= (1UL << bitnum);
2542 else
2543 cad.del_mask |= (1UL << bitnum);
2544 }
2545 ret = -E_ATTR_SYNTAX;
2546 if (!cad.add_mask && !cad.del_mask)
2547 goto out;
2548 pmd.patterns.data = p;
2549 assert(p < (char *)query->data + query->size);
2550 pmd.patterns.size = (char *)query->data + query->size - p;
2551 ret = for_each_matching_row(&pmd);
2552 if (ret < 0)
2553 goto out;
2554 if (pmd.num_matches == 0)
2555 para_printf(&cad.pb, "no matches\n");
2556 out:
2557 if (ret < 0)
2558 para_printf(&cad.pb, "%s\n", para_strerror(-ret));
2559 if (cad.pb.offset)
2560 pass_buffer_as_shm(fd, SBD_OUTPUT, cad.pb.buf, cad.pb.offset);
2561 free(cad.pb.buf);
2562 }
2563
2564 int com_setatt(struct command_context *cc)
2565 {
2566 if (cc->argc < 3)
2567 return -E_ATTR_SYNTAX;
2568 return send_standard_callback_request(cc->argc - 1, cc->argv + 1,
2569 com_setatt_callback, afs_cb_result_handler, cc);
2570 }
2571
2572 static void afs_stat_callback(int fd, const struct osl_object *query)
2573 {
2574 int *parser_friendly = query->data;
2575 char *buf = *parser_friendly?
2576 parser_friendly_status_items : status_items;
2577
2578 if (!buf)
2579 return;
2580 pass_buffer_as_shm(fd, SBD_OUTPUT, buf, strlen(buf));
2581 }
2582
2583 /**
2584 * Get the current afs status items from the afs process and send it.
2585 *
2586 * \param cc The command context, used e.g. for data encryption.
2587 * \param parser_friendly Whether parser-friendly output format should be used.
2588 *
2589 * As the contents of the afs status items change in time and the command
2590 * handler only has a COW version created at fork time, it can not send
2591 * up-to-date afs status items directly. Therefore the usual callback mechanism
2592 * is used to pass the status items from the afs process to the command handler
2593 * via a shared memory area and a pipe.
2594 *
2595 * \return The return value of the underlying call to \ref send_callback_request().
2596 */
2597 int send_afs_status(struct command_context *cc, int parser_friendly)
2598 {
2599 struct osl_object query = {.data = &parser_friendly,
2600 .size = sizeof(parser_friendly)};
2601
2602 return send_callback_request(afs_stat_callback, &query,
2603 afs_cb_result_handler, cc);
2604 }
2605
2606 /* TODO: optionally fix problems by removing offending rows */
2607 static int check_audio_file(struct osl_row *row, void *data)
2608 {
2609 char *path;
2610 struct para_buffer *pb = data;
2611 struct stat statbuf;
2612 int ret = get_audio_file_path_of_row(row, &path);
2613 struct afs_info afsi;
2614 char *blob_name;
2615
2616 if (ret < 0)
2617 return para_printf(pb, "%s\n", para_strerror(-ret));
2618 if (stat(path, &statbuf) < 0) {
2619 ret = para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2620 if (ret < 0)
2621 return ret;
2622 } else {
2623 if (!S_ISREG(statbuf.st_mode)) {
2624 ret = para_printf(pb, "%s: not a regular file\n", path);
2625 if (ret < 0)
2626 return ret;
2627 }
2628 }
2629 ret = get_afsi_of_row(row, &afsi);
2630 if (ret < 0)
2631 return para_printf(pb, "%s: %s\n", path, para_strerror(-ret));
2632 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2633 if (ret < 0) {
2634 ret = para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2635 para_strerror(-ret));
2636 if (ret < 0)
2637 return ret;
2638 }
2639 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2640 if (ret < 0)
2641 ret = para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2642 para_strerror(-ret));
2643 return ret;
2644 }
2645
2646 /**
2647 * Check the audio file table for inconsistencies.
2648 *
2649 * \param fd The afs socket.
2650 * \param query Unused.
2651 *
2652 * This function always succeeds.
2653 *
2654 * \sa com_check().
2655 */
2656 void aft_check_callback(int fd, __a_unused const struct osl_object *query)
2657 {
2658 struct para_buffer pb = {
2659 .max_size = shm_get_shmmax(),
2660 .private_data = &(struct afs_max_size_handler_data) {
2661 .fd = fd,
2662 .band = SBD_OUTPUT
2663 },
2664 .max_size_handler = afs_max_size_handler
2665 };
2666 int ret = para_printf(&pb, "checking audio file table...\n");
2667
2668 if (ret < 0)
2669 return;
2670 audio_file_loop(&pb, check_audio_file);
2671 if (pb.offset)
2672 pass_buffer_as_shm(fd, SBD_OUTPUT, pb.buf, pb.offset);
2673 free(pb.buf);
2674 }
2675
2676 /**
2677 * Close the audio file table.
2678 *
2679 * \param flags Usual flags that are passed to osl_close_table().
2680 *
2681 * \sa osl_close_table().
2682 */
2683 static void aft_close(void)
2684 {
2685 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2686 audio_file_table = NULL;
2687 }
2688
2689 /**
2690 * Open the audio file table.
2691 *
2692 * \param dir The database directory.
2693 *
2694 * \return Standard.
2695 *
2696 * \sa osl_open_table().
2697 */
2698 static int aft_open(const char *dir)
2699 {
2700 int ret;
2701
2702 audio_file_table_desc.dir = dir;
2703 ret = osl(osl_open_table(&audio_file_table_desc, &audio_file_table));
2704 if (ret >= 0) {
2705 unsigned num;
2706 osl_get_num_rows(audio_file_table, &num);
2707 PARA_INFO_LOG("audio file table contains %d files\n", num);
2708 return ret;
2709 }
2710 PARA_INFO_LOG("failed to open audio file table\n");
2711 audio_file_table = NULL;
2712 if (ret >= 0 || ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_NOENT))
2713 return 1;
2714 return ret;
2715 }
2716
2717 static int aft_create(const char *dir)
2718 {
2719 audio_file_table_desc.dir = dir;
2720 return osl(osl_create_table(&audio_file_table_desc));
2721 }
2722
2723 static int clear_attribute(struct osl_row *row, void *data)
2724 {
2725 struct rmatt_event_data *red = data;
2726 struct afs_info afsi;
2727 struct osl_object obj;
2728 int ret = get_afsi_object_of_row(row, &obj);
2729 uint64_t mask = ~(1ULL << red->bitnum);
2730
2731 if (ret < 0)
2732 return ret;
2733 ret = load_afsi(&afsi, &obj);
2734 if (ret < 0)
2735 return ret;
2736 afsi.attributes &= mask;
2737 save_afsi(&afsi, &obj);
2738 return 1;
2739 }
2740
2741 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2742 void *data)
2743 {
2744 int ret;
2745
2746 switch (event) {
2747 case ATTRIBUTE_REMOVE: {
2748 const struct rmatt_event_data *red = data;
2749 ret = para_printf(pb, "clearing attribute %s (bit %u) from all "
2750 "entries in the audio file table\n", red->name,
2751 red->bitnum);
2752 if (ret < 0)
2753 return ret;
2754 return audio_file_loop(data, clear_attribute);
2755 }
2756 default:
2757 return 1;
2758 }
2759 }
2760
2761 /**
2762 * Initialize the audio file table.
2763 *
2764 * \param t Pointer to the structure to be initialized.
2765 */
2766 void aft_init(struct afs_table *t)
2767 {
2768 t->open = aft_open;
2769 t->close = aft_close;
2770 t->create = aft_create;
2771 t->event_handler = aft_event_handler;
2772 }