com_ls: Print an error message if no file matched.
[paraslash.git] / aft.c
1 /*
2 * Copyright (C) 2007-2011 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 <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
25 static struct osl_table *audio_file_table;
26 static char *status_items;
27 static char *parser_friendly_status_items;
28
29 /** The different sorting methods of the ls command. */
30 enum ls_sorting_method {
31 /** -sp (default) */
32 LS_SORT_BY_PATH,
33 /** -ss */
34 LS_SORT_BY_SCORE,
35 /** -sl */
36 LS_SORT_BY_LAST_PLAYED,
37 /** -sn */
38 LS_SORT_BY_NUM_PLAYED,
39 /** -sf */
40 LS_SORT_BY_FREQUENCY,
41 /** -sc */
42 LS_SORT_BY_CHANNELS,
43 /** -si */
44 LS_SORT_BY_IMAGE_ID,
45 /** -sy */
46 LS_SORT_BY_LYRICS_ID,
47 /** -sb */
48 LS_SORT_BY_BITRATE,
49 /** -sd */
50 LS_SORT_BY_DURATION,
51 /** -sa */
52 LS_SORT_BY_AUDIO_FORMAT,
53 /** -sh */
54 LS_SORT_BY_HASH,
55 };
56
57 /** The different listing modes of the ls command. */
58 enum ls_listing_mode {
59 /** Default listing mode. */
60 LS_MODE_SHORT,
61 /** -l or -ll */
62 LS_MODE_LONG,
63 /** -lv */
64 LS_MODE_VERBOSE,
65 /** -lm */
66 LS_MODE_MBOX,
67 /** -lc */
68 LS_MODE_CHUNKS,
69 /** -lp */
70 LS_MODE_PARSER,
71 };
72
73 /** The flags accepted by the ls command. */
74 enum ls_flags {
75 /** -p */
76 LS_FLAG_FULL_PATH = 1,
77 /** -a */
78 LS_FLAG_ADMISSIBLE_ONLY = 2,
79 /** -r */
80 LS_FLAG_REVERSE = 4,
81 /** -d */
82 LS_FLAG_UNIXDATE = 8,
83 };
84
85 /**
86 * The size of the individual output fields of the ls command.
87 *
88 * These depend on the actual content being listed. If, for instance only files
89 * with duration less than an hour are being listed, then the duration with is
90 * made smaller because then the duration is listed as mm:ss rather than
91 * hh:mm:ss.
92 */
93 struct ls_widths {
94 /** size of the score field. */
95 unsigned short score_width;
96 /** size of the image id field. */
97 unsigned short image_id_width;
98 /** size of the lyrics id field. */
99 unsigned short lyrics_id_width;
100 /** size of the bitrate field. */
101 unsigned short bitrate_width;
102 /** size of the frequency field. */
103 unsigned short frequency_width;
104 /** size of the duration field. */
105 unsigned short duration_width;
106 /** size of the num played field. */
107 unsigned short num_played_width;
108 /** size of the amp field. */
109 unsigned short amp_width;
110 };
111
112 /** Data passed from the ls command handler to its callback function. */
113 struct ls_options {
114 /** The given command line flags. */
115 unsigned flags;
116 /** The sorting method given at the command line. */
117 enum ls_sorting_method sorting;
118 /** The given listing mode (short, long, verbose, mbox). */
119 enum ls_listing_mode mode;
120 /** The arguments passed to the ls command. */
121 char **patterns;
122 /** Number of non-option arguments. */
123 int num_patterns;
124 /** Used for long listing mode to align the output fields. */
125 struct ls_widths widths;
126 /** Size of the \a data array. */
127 uint32_t array_size;
128 /** Number of used entries in the data array. */
129 uint32_t num_matching_paths;
130 /** Array of matching entries. */
131 struct ls_data *data;
132 /** Used to sort the array. */
133 struct ls_data **data_ptr;
134 };
135
136 /**
137 * Describes the layout of the mmapped-afs info struct.
138 *
139 * \sa struct afs_info.
140 */
141 enum afsi_offsets {
142 /** Where .last_played is stored. */
143 AFSI_LAST_PLAYED_OFFSET = 0,
144 /** Storage position of the attributes bitmap. */
145 AFSI_ATTRIBUTES_OFFSET = 8,
146 /** Storage position of the .num_played field. */
147 AFSI_NUM_PLAYED_OFFSET = 16,
148 /** Storage position of the .image_id field. */
149 AFSI_IMAGE_ID_OFFSET = 20,
150 /** Storage position of the .lyrics_id field. */
151 AFSI_LYRICS_ID_OFFSET = 24,
152 /** Storage position of the .audio_format_id field. */
153 AFSI_AUDIO_FORMAT_ID_OFFSET = 28,
154 /** Storage position of the amplification field. */
155 AFSI_AMP_OFFSET = 29,
156 /** 2 bytes reserved space for future usage. */
157 AFSI_AUDIO_FORMAT_UNUSED_OFFSET = 30,
158 /** On-disk storage space needed. */
159 AFSI_SIZE = 32
160 };
161
162 /**
163 * Convert a struct afs_info to an osl object.
164 *
165 * \param afsi Pointer to the audio file info to be converted.
166 * \param obj Result pointer.
167 *
168 * \sa load_afsi().
169 */
170 void save_afsi(struct afs_info *afsi, struct osl_object *obj)
171 {
172 char *buf = obj->data;
173
174 write_u64(buf + AFSI_LAST_PLAYED_OFFSET, afsi->last_played);
175 write_u64(buf + AFSI_ATTRIBUTES_OFFSET, afsi->attributes);
176 write_u32(buf + AFSI_NUM_PLAYED_OFFSET, afsi->num_played);
177 write_u32(buf + AFSI_IMAGE_ID_OFFSET, afsi->image_id);
178 write_u32(buf + AFSI_LYRICS_ID_OFFSET, afsi->lyrics_id);
179 write_u8(buf + AFSI_AUDIO_FORMAT_ID_OFFSET,
180 afsi->audio_format_id);
181 write_u8(buf + AFSI_AMP_OFFSET, afsi->amp);
182 memset(buf + AFSI_AUDIO_FORMAT_UNUSED_OFFSET, 0, 2);
183 }
184
185 /**
186 * Get the audio file selector info struct stored in an osl object.
187 *
188 * \param afsi Points to the audio_file info structure to be filled in.
189 * \param obj The osl object holding the data.
190 *
191 * \return Positive on success, negative on errors. Possible errors: \p E_BAD_AFS.
192 *
193 * \sa save_afsi().
194 */
195 int load_afsi(struct afs_info *afsi, struct osl_object *obj)
196 {
197 char *buf = obj->data;
198 if (obj->size < AFSI_SIZE)
199 return -E_BAD_AFSI;
200 afsi->last_played = read_u64(buf + AFSI_LAST_PLAYED_OFFSET);
201 afsi->attributes = read_u64(buf + AFSI_ATTRIBUTES_OFFSET);
202 afsi->num_played = read_u32(buf + AFSI_NUM_PLAYED_OFFSET);
203 afsi->image_id = read_u32(buf + AFSI_IMAGE_ID_OFFSET);
204 afsi->lyrics_id = read_u32(buf + AFSI_LYRICS_ID_OFFSET);
205 afsi->audio_format_id = read_u8(buf +
206 AFSI_AUDIO_FORMAT_ID_OFFSET);
207 afsi->amp = read_u8(buf + AFSI_AMP_OFFSET);
208 return 1;
209 }
210
211 /** The columns of the audio file table. */
212 enum audio_file_table_columns {
213 /** The hash on the content of the audio file. */
214 AFTCOL_HASH,
215 /** The full path in the filesystem. */
216 AFTCOL_PATH,
217 /** The audio file selector info. */
218 AFTCOL_AFSI,
219 /** The audio format handler info. */
220 AFTCOL_AFHI,
221 /** The chunk table info and the chunk table of the audio file. */
222 AFTCOL_CHUNKS,
223 /** The number of columns of this table. */
224 NUM_AFT_COLUMNS
225 };
226
227 /**
228 * Compare two osl objects pointing to hash values.
229 *
230 * \param obj1 Pointer to the first hash object.
231 * \param obj2 Pointer to the second hash object.
232 *
233 * \return The values required for an osl compare function.
234 *
235 * \sa osl_compare_func, uint32_compare().
236 */
237 static int aft_hash_compare(const struct osl_object *obj1, const struct osl_object *obj2)
238 {
239 return hash_compare((unsigned char *)obj1->data, (unsigned char *)obj2->data);
240 }
241
242 static struct osl_column_description aft_cols[] = {
243 [AFTCOL_HASH] = {
244 .storage_type = OSL_MAPPED_STORAGE,
245 .storage_flags = OSL_RBTREE | OSL_FIXED_SIZE | OSL_UNIQUE,
246 .name = "hash",
247 .compare_function = aft_hash_compare,
248 .data_size = HASH_SIZE
249 },
250 [AFTCOL_PATH] = {
251 .storage_type = OSL_MAPPED_STORAGE,
252 .storage_flags = OSL_RBTREE | OSL_UNIQUE,
253 .name = "path",
254 .compare_function = string_compare,
255 },
256 [AFTCOL_AFSI] = {
257 .storage_type = OSL_MAPPED_STORAGE,
258 .storage_flags = OSL_FIXED_SIZE,
259 .name = "afs_info",
260 .data_size = AFSI_SIZE
261 },
262 [AFTCOL_AFHI] = {
263 .storage_type = OSL_MAPPED_STORAGE,
264 .name = "afh_info",
265 },
266 [AFTCOL_CHUNKS] = {
267 .storage_type = OSL_DISK_STORAGE,
268 .name = "chunks",
269 }
270 };
271
272 static struct osl_table_description audio_file_table_desc = {
273 .name = "audio_files",
274 .num_columns = NUM_AFT_COLUMNS,
275 .flags = OSL_LARGE_TABLE,
276 .column_descriptions = aft_cols
277 };
278
279 /* We don't want * dot or dot-dot anywhere. */
280 static int verify_dotfile(const char *rest)
281 {
282 /*
283 * The first character was '.', but that has already been discarded, we
284 * now test the rest.
285 */
286 switch (*rest) {
287 case '\0': case '/': /* /foo/. and /foo/./bar are not ok */
288 return -1;
289 case '.': /* path start with /foo/.. */
290 if (rest[1] == '\0' || rest[1] == '/')
291 return -1; /* /foo/.. or /foo/../bar are not ok */
292 /* /foo/..bar is ok */
293 }
294 return 1;
295 }
296
297 /*
298 * We fundamentally don't like some paths: We don't want double slashes or
299 * slashes at the end that can make pathnames ambiguous.
300 */
301 static int verify_path(const char *orig_path, char **resolved_path)
302 {
303 char c;
304 size_t len;
305 char *path;
306
307 if (*orig_path != '/') /* we only accept absolute paths */
308 return -E_BAD_PATH;
309 len = strlen(orig_path);
310 *resolved_path = para_strdup(orig_path);
311 path = *resolved_path;
312 while (len > 1 && path[--len] == '/')
313 path[len] = '\0'; /* remove slash at the end */
314 c = *path++;
315 while (c) {
316 if (c == '/') {
317 c = *path++;
318 switch (c) {
319 case '/': /* double slash */
320 goto bad_path;
321 case '.':
322 if (verify_dotfile(path) < 0)
323 goto bad_path;
324 default:
325 continue;
326 }
327 }
328 c = *path++;
329 }
330 return 1;
331 bad_path:
332 free(*resolved_path);
333 return -E_BAD_PATH;
334 }
335
336 /** The on-disk layout of a afhi struct. */
337 enum afhi_offsets {
338 /** Where the number of seconds is stored. */
339 AFHI_SECONDS_TOTAL_OFFSET = 0,
340 /** Position of the bitrate. */
341 AFHI_BITRATE_OFFSET = 4,
342 /** Position of the frequency. */
343 AFHI_FREQUENCY_OFFSET = 8,
344 /** Was: Location of the audio file header. */
345 AFHI_UNUSED1_OFFSET = 12,
346 /* Length of the audio file header. Zero means: No header. */
347 AFHI_HEADER_LEN_OFFSET = 16,
348 /** The total number of chunks (4 bytes). */
349 CHUNKS_TOTAL_OFFSET = 20,
350 /** The length of the audio file header (4 bytes). */
351 HEADER_LEN_OFFSET = 24,
352 /** Was: The start of the audio file header (4 bytes). */
353 AFHI_UNUSED2_OFFSET = 28,
354 /** The seconds part of the chunk time (4 bytes). */
355 CHUNK_TV_TV_SEC_OFFSET = 32,
356 /** The microseconds part of the chunk time (4 bytes). */
357 CHUNK_TV_TV_USEC_OFFSET = 36,
358 /** Number of channels is stored here. (1 byte) */
359 AFHI_CHANNELS_OFFSET = 40,
360 /** The tag info position. */
361 AFHI_INFO_STRING_OFFSET = 41,
362 /** Minimal on-disk size of a valid afhi struct. */
363 MIN_AFHI_SIZE = 47, /* at least 6 null bytes for techinfo/tags */
364 };
365
366 static unsigned sizeof_afhi_buf(const struct afh_info *afhi)
367 {
368 if (!afhi)
369 return 0;
370 return MIN_AFHI_SIZE
371 + strlen(afhi->techinfo)
372 + strlen(afhi->tags.artist)
373 + strlen(afhi->tags.title)
374 + strlen(afhi->tags.year)
375 + strlen(afhi->tags.album)
376 + strlen(afhi->tags.comment);
377 }
378
379 static void save_afhi(struct afh_info *afhi, char *buf)
380 {
381 char *p;
382
383 if (!afhi)
384 return;
385 write_u32(buf + AFHI_SECONDS_TOTAL_OFFSET, afhi->seconds_total);
386 write_u32(buf + AFHI_BITRATE_OFFSET, afhi->bitrate);
387 write_u32(buf + AFHI_FREQUENCY_OFFSET, afhi->frequency);
388 write_u32(buf + AFHI_UNUSED1_OFFSET, 0);
389 write_u32(buf + AFHI_HEADER_LEN_OFFSET, afhi->header_len);
390 write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
391 write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
392 write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
393 write_u32(buf + AFHI_UNUSED2_OFFSET, 0);
394 write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
395 write_u32(buf + CHUNK_TV_TV_USEC_OFFSET, afhi->chunk_tv.tv_usec);
396 p = buf + AFHI_INFO_STRING_OFFSET;
397 /* The sprintf's below are OK as our caller made sure that buf is large enough */
398 p += sprintf(p, "%s", afhi->techinfo) + 1;
399 p += sprintf(p, "%s", afhi->tags.artist) + 1;
400 p += sprintf(p, "%s", afhi->tags.title) + 1;
401 p += sprintf(p, "%s", afhi->tags.year) + 1;
402 p += sprintf(p, "%s", afhi->tags.album) + 1;
403 sprintf(p, "%s", afhi->tags.comment);
404 }
405
406 static void load_afhi(const char *buf, struct afh_info *afhi)
407 {
408 afhi->seconds_total = read_u32(buf + AFHI_SECONDS_TOTAL_OFFSET);
409 afhi->bitrate = read_u32(buf + AFHI_BITRATE_OFFSET);
410 afhi->frequency = read_u32(buf + AFHI_FREQUENCY_OFFSET);
411 afhi->header_len = read_u32(buf + AFHI_HEADER_LEN_OFFSET);
412 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
413 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
414 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
415 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
416 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC_OFFSET);
417 afhi->techinfo = (char *)buf + AFHI_INFO_STRING_OFFSET;
418 afhi->tags.artist = afhi->techinfo + strlen(afhi->techinfo) + 1;
419 afhi->tags.title = afhi->tags.artist + strlen(afhi->tags.artist) + 1;
420 afhi->tags.year = afhi->tags.title + strlen(afhi->tags.title) + 1;
421 afhi->tags.album = afhi->tags.year + strlen(afhi->tags.year) + 1;
422 afhi->tags.comment = afhi->tags.album + strlen(afhi->tags.album) + 1;
423 }
424
425 static unsigned sizeof_chunk_table(struct afh_info *afhi)
426 {
427 if (!afhi)
428 return 0;
429 return 4 * (afhi->chunks_total + 1);
430 }
431
432 static uint32_t save_chunk_table(struct afh_info *afhi, char *buf)
433 {
434 int i;
435 uint32_t max = 0, old = 0;
436
437 for (i = 0; i <= afhi->chunks_total; i++) {
438 uint32_t val = afhi->chunk_table[i];
439 write_u32(buf + 4 * i, val);
440 /*
441 * If the first chunk is the header, do not consider it for the
442 * calculation of the largest chunk size.
443 */
444 if (i == 0 || (i == 1 && afhi->header_len > 0)) {
445 old = val;
446 continue;
447 }
448 max = PARA_MAX(max, val - old);
449 old = val;
450 }
451 return max;
452 }
453
454 static void load_chunk_table(struct afh_info *afhi, char *buf)
455 {
456 int i;
457
458 afhi->chunk_table = para_malloc(sizeof_chunk_table(afhi));
459 for (i = 0; i <= afhi->chunks_total; i++)
460 afhi->chunk_table[i] = read_u32(buf + 4 * i);
461 }
462
463 /**
464 * Get the row of the audio file table corresponding to the given path.
465 *
466 * \param path The full path of the audio file.
467 * \param row Result pointer.
468 *
469 * \return Standard.
470 */
471 int aft_get_row_of_path(const char *path, struct osl_row **row)
472 {
473 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
474
475 return osl(osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row));
476 }
477
478 /**
479 * Get the row of the audio file table corresponding to the given hash value.
480 *
481 * \param hash The hash value of the desired audio file.
482 * \param row Result pointer.
483 *
484 * \return Standard.
485 */
486 static int aft_get_row_of_hash(unsigned char *hash, struct osl_row **row)
487 {
488 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
489 return osl(osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row));
490 }
491
492 /**
493 * Get the osl object holding the audio file selector info of a row.
494 *
495 * \param row Pointer to a row in the audio file table.
496 * \param obj Result pointer.
497 *
498 * \return Standard.
499 */
500 int get_afsi_object_of_row(const struct osl_row *row, struct osl_object *obj)
501 {
502 return osl(osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj));
503 }
504
505 /**
506 * Get the osl object holding the audio file selector info, given a path.
507 *
508 *
509 * \param path The full path of the audio file.
510 * \param obj Result pointer.
511 *
512 * \return Positive on success, negative on errors.
513 */
514 static int get_afsi_object_of_path(const char *path, struct osl_object *obj)
515 {
516 struct osl_row *row;
517 int ret = aft_get_row_of_path(path, &row);
518 if (ret < 0)
519 return ret;
520 return get_afsi_object_of_row(row, obj);
521 }
522
523 /**
524 * Get the audio file selector info, given a row of the audio file table.
525 *
526 * \param row Pointer to a row in the audio file table.
527 * \param afsi Result pointer.
528 *
529 * \return Positive on success, negative on errors.
530 */
531 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
532 {
533 struct osl_object obj;
534 int ret = get_afsi_object_of_row(row, &obj);
535 if (ret < 0)
536 return ret;
537 return load_afsi(afsi, &obj);
538 }
539
540 /**
541 * Get the audio file selector info, given the path of an audio table.
542 *
543 * \param path The full path of the audio file.
544 * \param afsi Result pointer.
545 *
546 * \return Positive on success, negative on errors.
547 */
548 int get_afsi_of_path(const char *path, struct afs_info *afsi)
549 {
550 struct osl_object obj;
551 int ret = get_afsi_object_of_path(path, &obj);
552 if (ret < 0)
553 return ret;
554 return load_afsi(afsi, &obj);
555 }
556
557 /**
558 * Get the path of an audio file, given a row of the audio file table.
559 *
560 * \param row Pointer to a row in the audio file table.
561 * \param path Result pointer.
562 *
563 * The result is a pointer to mmapped data. The caller must not attempt
564 * to free it.
565 *
566 * \return Standard.
567 */
568 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
569 {
570 struct osl_object path_obj;
571 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_PATH,
572 &path_obj));
573 if (ret < 0)
574 return ret;
575 *path = path_obj.data;
576 return 1;
577 }
578
579 /**
580 * Get the object containing the hash value of an audio file, given a row.
581 *
582 * \param row Pointer to a row of the audio file table.
583 * \param obj Result pointer.
584 *
585 * \return The return value of the underlying call to osl_get_object().
586 *
587 * \sa get_hash_of_row().
588 */
589 static int get_hash_object_of_aft_row(const struct osl_row *row,
590 struct osl_object *obj)
591 {
592 return osl(osl_get_object(audio_file_table, row, AFTCOL_HASH, obj));
593 }
594
595 /**
596 * Get the hash value of an audio file, given a row of the audio file table.
597 *
598 * \param row Pointer to a row of the audio file table.
599 * \param hash Result pointer.
600 *
601 * \a hash points to mapped data and must not be freed by the caller.
602 *
603 * \return The return value of the underlying call to
604 * get_hash_object_of_aft_row().
605 */
606 static int get_hash_of_row(const struct osl_row *row, unsigned char **hash)
607 {
608 struct osl_object obj;
609 int ret = get_hash_object_of_aft_row(row, &obj);
610
611 if (ret < 0)
612 return ret;
613 *hash = obj.data;
614 return 1;
615 }
616
617 /**
618 * Get the audio format handler info, given a row of the audio file table.
619 *
620 * \param row Pointer to a row of the audio file table.
621 * \param afhi Result pointer.
622 *
623 * \return The return value of the underlying call to osl_get_object().
624 *
625 * \sa get_chunk_table_of_row().
626 */
627 int get_afhi_of_row(const struct osl_row *row, struct afh_info *afhi)
628 {
629 struct osl_object obj;
630 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_AFHI,
631 &obj));
632 if (ret < 0)
633 return ret;
634 load_afhi(obj.data, afhi);
635 return 1;
636 }
637
638 /* returns shmid on success */
639 static int save_afd(struct audio_file_data *afd)
640 {
641 size_t size = sizeof(*afd) + sizeof_chunk_table(&afd->afhi);
642 int shmid, ret = shm_new(size);
643 void *shm_afd;
644 char *buf;
645
646 if (ret < 0)
647 return ret;
648 shmid = ret;
649 ret = shm_attach(shmid, ATTACH_RW, &shm_afd);
650 if (ret < 0)
651 goto err;
652 buf = shm_afd;
653 buf += sizeof(*afd);
654 afd->max_chunk_size = save_chunk_table(&afd->afhi, buf);
655 *(struct audio_file_data *)shm_afd = *afd;
656 shm_detach(shm_afd);
657 return shmid;
658 err:
659 shm_destroy(shmid);
660 return ret;
661 }
662
663 /**
664 * Extract a afd stored in a shared memory area.
665 *
666 * Attach the shared memory area given by \a shmid, load the audio file data
667 * stored therein and detach the area afterwards. Called by vss, after
668 * receiving a positive response to the request for the next audio file.
669 +
670 * \param shmid The identifier of the shared memory area containing the afd.
671 * \param afd Result pointer.
672 *
673 * \return Standard.
674 */
675 int load_afd(int shmid, struct audio_file_data *afd)
676 {
677 void *shm_afd;
678 char *buf;
679 int ret;
680
681 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
682 if (ret < 0)
683 return ret;
684 *afd = *(struct audio_file_data *)shm_afd;
685 buf = shm_afd;
686 buf += sizeof(*afd);
687 load_chunk_table(&afd->afhi, buf);
688 shm_detach(shm_afd);
689 return 1;
690 }
691
692 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
693 time_t current_time, enum ls_listing_mode lm)
694 {
695 struct tm t;
696
697 if (!localtime_r((time_t *)seconds, &t))
698 return -E_LOCALTIME;
699 if (lm == LS_MODE_MBOX) {
700 if (!strftime(buf, size, "%c", &t))
701 return -E_STRFTIME;
702 return 1;
703 }
704 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
705 if (!strftime(buf, size, "%b %e %k:%M", &t))
706 return -E_STRFTIME;
707 return 1;
708 }
709 if (!strftime(buf, size, "%b %e %Y", &t))
710 return -E_STRFTIME;
711 return 1;
712 }
713
714 /** Compute the number of (decimal) digits of a number. */
715 #define GET_NUM_DIGITS(x, num) { \
716 typeof((x)) _tmp = PARA_ABS(x); \
717 *num = 1; \
718 if ((_tmp)) \
719 while ((_tmp) > 9) { \
720 (_tmp) /= 10; \
721 (*num)++; \
722 } \
723 }
724
725 __a_const static short unsigned get_duration_width(int seconds)
726 {
727 short unsigned width;
728 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
729
730 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
731 return 4 + (mins > 9);
732 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
733 GET_NUM_DIGITS(hours, &width);
734 return width + 6;
735 }
736
737 static void get_duration_buf(int seconds, char *buf, struct ls_options *opts)
738 {
739 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
740 short unsigned max_width;
741
742 if (!hours) { /* m:ss or mm:ss */
743 max_width = opts->mode == LS_MODE_LONG?
744 opts->widths.duration_width : 4;
745 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
746 } else { /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
747 max_width = opts->mode == LS_MODE_LONG?
748 opts->widths.duration_width : 7;
749 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
750 seconds % 60);
751 }
752 }
753
754
755 static int write_attribute_items(struct para_buffer *b,
756 const char *att_bitmap, struct afs_info *afsi)
757 {
758 char *att_text;
759 int ret;
760
761 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_BITMAP, "%s\n", att_bitmap);
762 if (ret < 0)
763 return ret;
764 ret = get_attribute_text(&afsi->attributes, " ", &att_text);
765 if (ret < 0)
766 return ret;
767 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_TXT, "%s\n", att_text);
768 free(att_text);
769 return ret;
770 }
771
772 static int write_lyrics_items(struct para_buffer *b, struct afs_info *afsi)
773 {
774 char *lyrics_name;
775 int ret;
776
777 ret = WRITE_STATUS_ITEM(b, SI_LYRICS_ID, "%u\n", afsi->lyrics_id);
778 if (ret < 0)
779 return ret;
780 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
781 return WRITE_STATUS_ITEM(b, SI_LYRICS_NAME, "%s\n", lyrics_name?
782 lyrics_name : "(none)");
783 }
784
785 static int write_image_items(struct para_buffer *b, struct afs_info *afsi)
786 {
787 char *image_name;
788 int ret;
789
790 ret = WRITE_STATUS_ITEM(b, SI_IMAGE_ID, "%u\n", afsi->image_id);
791 if (ret < 0)
792 return ret;
793 img_get_name_by_id(afsi->image_id, &image_name);
794 return WRITE_STATUS_ITEM(b, SI_IMAGE_NAME, "%s\n", image_name?
795 image_name : "(none)");
796 }
797
798 static int write_filename_items(struct para_buffer *b, const char *path,
799 unsigned flags)
800 {
801 char *val;
802 int ret;
803
804 if (!(flags & LS_FLAG_FULL_PATH))
805 return WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", path);
806 ret = WRITE_STATUS_ITEM(b, SI_PATH, "%s\n", path);
807 if (ret < 0)
808 return ret;
809 val = para_basename(path);
810 ret = WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", val? val : "");
811 if (ret < 0)
812 return ret;
813 val = para_dirname(path);
814 ret = WRITE_STATUS_ITEM(b, SI_DIRECTORY, "%s\n", val? val : "");
815 free(val);
816 return ret;
817 }
818
819 static int print_chunk_table(struct ls_data *d, struct para_buffer *b)
820 {
821 struct osl_object chunk_table_obj;
822 struct osl_row *aft_row;
823 int ret, i;
824 char *buf;
825
826 ret = aft_get_row_of_hash(d->hash, &aft_row);
827 if (ret < 0)
828 return ret;
829 ret = osl_open_disk_object(audio_file_table, aft_row,
830 AFTCOL_CHUNKS, &chunk_table_obj);
831 if (ret < 0)
832 return ret;
833 ret = para_printf(b, "%s\n"
834 "chunk_time: %lu:%lu\nchunk_offsets: ",
835 d->path,
836 (long unsigned) d->afhi.chunk_tv.tv_sec,
837 (long unsigned) d->afhi.chunk_tv.tv_usec
838 );
839 if (ret < 0)
840 goto out;
841 buf = chunk_table_obj.data;
842 for (i = 0; i <= d->afhi.chunks_total; i++) {
843 ret = para_printf(b, "%u ", (unsigned) read_u32(buf + 4 * i));
844 if (ret < 0)
845 goto out;
846 }
847 ret = para_printf(b, "\n");
848 out:
849 osl_close_disk_object(&chunk_table_obj);
850 return ret;
851 }
852
853 static int write_score(struct para_buffer *b, struct ls_data *d,
854 struct ls_options *opts)
855 {
856 if (!(opts->flags & LS_FLAG_ADMISSIBLE_ONLY)) /* no score*/
857 return 0;
858 return WRITE_STATUS_ITEM(b, SI_SCORE, "%li\n", d->score);
859 }
860
861 static int print_list_item(struct ls_data *d, struct ls_options *opts,
862 struct para_buffer *b, time_t current_time)
863 {
864 int ret;
865 char att_buf[65];
866 char last_played_time[30];
867 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
868 struct afs_info *afsi = &d->afsi;
869 struct afh_info *afhi = &d->afhi;
870 char asc_hash[2 * HASH_SIZE + 1];
871
872 if (opts->mode == LS_MODE_SHORT) {
873 ret = para_printf(b, "%s\n", d->path);
874 goto out;
875 }
876 if (opts->mode == LS_MODE_CHUNKS) {
877 ret = print_chunk_table(d, b);
878 goto out;
879 }
880 get_attribute_bitmap(&afsi->attributes, att_buf);
881 if (opts->flags & LS_FLAG_UNIXDATE)
882 sprintf(last_played_time, "%llu",
883 (long long unsigned)afsi->last_played);
884 else {
885 ret = get_local_time(&afsi->last_played, last_played_time,
886 sizeof(last_played_time), current_time, opts->mode);
887 if (ret < 0)
888 goto out;
889 }
890 get_duration_buf(afhi->seconds_total, duration_buf, opts);
891 if (opts->mode == LS_MODE_LONG) {
892 struct ls_widths *w = &opts->widths;
893 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY) {
894 ret = para_printf(b, "%*li ",
895 opts->widths.score_width, d->score);
896 if (ret < 0)
897 goto out;
898 }
899 ret = para_printf(b,
900 "%s " /* attributes */
901 "%*u " /* amp */
902 "%*d " /* image_id */
903 "%*d " /* lyrics_id */
904 "%*d " /* bitrate */
905 "%s " /* audio format */
906 "%*d " /* frequency */
907 "%d " /* channels */
908 "%s " /* duration */
909 "%*d " /* num_played */
910 "%s " /* last_played */
911 "%s\n", /* path */
912 att_buf,
913 w->amp_width, afsi->amp,
914 w->image_id_width, afsi->image_id,
915 w->lyrics_id_width, afsi->lyrics_id,
916 w->bitrate_width, afhi->bitrate,
917 audio_format_name(afsi->audio_format_id),
918 w->frequency_width, afhi->frequency,
919 afhi->channels,
920 duration_buf,
921 w->num_played_width, afsi->num_played,
922 last_played_time,
923 d->path
924 );
925 goto out;
926 }
927 if (opts->mode == LS_MODE_MBOX) {
928 const char *bn = para_basename(d->path);
929 ret = para_printf(b,
930 "From foo@localhost %s\n"
931 "Received: from\nTo: bar\nFrom: a\n"
932 "Subject: %s\n\n",
933 last_played_time,
934 bn? bn : "?");
935 if (ret < 0)
936 goto out;
937 }
938 ret = write_filename_items(b, d->path, opts->flags);
939 if (ret < 0)
940 goto out;
941 ret = write_score(b, d, opts);
942 if (ret < 0)
943 goto out;
944 ret = write_attribute_items(b, att_buf, afsi);
945 if (ret < 0)
946 goto out;
947 ret = write_image_items(b, afsi);
948 if (ret < 0)
949 goto out;
950 ret = write_lyrics_items(b, afsi);
951 if (ret < 0)
952 goto out;
953 hash_to_asc(d->hash, asc_hash);
954 ret = WRITE_STATUS_ITEM(b, SI_HASH, "%s\n", asc_hash);
955 if (ret < 0)
956 goto out;
957 ret = WRITE_STATUS_ITEM(b, SI_BITRATE, "%dkbit/s\n", afhi->bitrate);
958 if (ret < 0)
959 goto out;
960 ret = WRITE_STATUS_ITEM(b, SI_FORMAT, "%s\n",
961 audio_format_name(afsi->audio_format_id));
962 if (ret < 0)
963 goto out;
964 ret = WRITE_STATUS_ITEM(b, SI_FREQUENCY, "%dHz\n", afhi->frequency);
965 if (ret < 0)
966 goto out;
967 ret = WRITE_STATUS_ITEM(b, SI_CHANNELS, "%d\n", afhi->channels);
968 if (ret < 0)
969 goto out;
970 ret = WRITE_STATUS_ITEM(b, SI_DURATION, "%s\n", duration_buf);
971 if (ret < 0)
972 goto out;
973 ret = WRITE_STATUS_ITEM(b, SI_SECONDS_TOTAL, "%lu\n",
974 afhi->seconds_total);
975 if (ret < 0)
976 goto out;
977 ret = WRITE_STATUS_ITEM(b, SI_LAST_PLAYED, "%s\n", last_played_time);
978 if (ret < 0)
979 goto out;
980 ret = WRITE_STATUS_ITEM(b, SI_NUM_PLAYED, "%d\n", afsi->num_played);
981 if (ret < 0)
982 goto out;
983 ret = WRITE_STATUS_ITEM(b, SI_AMPLIFICATION, "%u\n", afsi->amp);
984 if (ret < 0)
985 goto out;
986 ret = WRITE_STATUS_ITEM(b, SI_CHUNK_TIME, "%lu\n",
987 tv2ms(&afhi->chunk_tv));
988 if (ret < 0)
989 goto out;
990 ret = WRITE_STATUS_ITEM(b, SI_NUM_CHUNKS, "%lu\n",
991 afhi->chunks_total);
992 if (ret < 0)
993 goto out;
994 ret = WRITE_STATUS_ITEM(b, SI_TECHINFO, "%s\n", afhi->techinfo);
995 if (ret < 0)
996 goto out;
997 ret = WRITE_STATUS_ITEM(b, SI_ARTIST, "%s\n", afhi->tags.artist);
998 if (ret < 0)
999 goto out;
1000 ret = WRITE_STATUS_ITEM(b, SI_TITLE, "%s\n", afhi->tags.title);
1001 if (ret < 0)
1002 goto out;
1003 ret = WRITE_STATUS_ITEM(b, SI_YEAR, "%s\n", afhi->tags.year);
1004 if (ret < 0)
1005 goto out;
1006 ret = WRITE_STATUS_ITEM(b, SI_ALBUM, "%s\n", afhi->tags.album);
1007 if (ret < 0)
1008 goto out;
1009 ret = WRITE_STATUS_ITEM(b, SI_COMMENT, "%s\n", afhi->tags.comment);
1010 if (ret < 0)
1011 goto out;
1012 if (opts->mode == LS_MODE_MBOX) {
1013 struct osl_object lyrics_def;
1014 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
1015 if (lyrics_def.data) {
1016 ret = para_printf(b, "Lyrics:\n~~~~~~~\n%s",
1017 (char *)lyrics_def.data);
1018 osl_close_disk_object(&lyrics_def);
1019 }
1020 }
1021 out:
1022 return ret;
1023 }
1024
1025 static int make_status_items(struct audio_file_data *afd,
1026 struct afs_info *afsi, char *path, long score,
1027 unsigned char *hash)
1028 {
1029 struct ls_data d = {
1030 .afhi = afd->afhi,
1031 .afsi = *afsi,
1032 .path = path,
1033 .score = score,
1034 .hash = hash
1035 };
1036 struct ls_options opts = {
1037 .flags = LS_FLAG_FULL_PATH | LS_FLAG_ADMISSIBLE_ONLY,
1038 .mode = LS_MODE_VERBOSE,
1039 };
1040 struct para_buffer pb = {.max_size = shm_get_shmmax() - 1};
1041 time_t current_time;
1042 int ret;
1043
1044 time(&current_time);
1045 ret = print_list_item(&d, &opts, &pb, current_time);
1046 if (ret < 0)
1047 return ret;
1048 free(status_items);
1049 status_items = pb.buf;
1050 memset(&pb, 0, sizeof(pb));
1051 pb.max_size = shm_get_shmmax() - 1;
1052 pb.flags = PBF_SIZE_PREFIX;
1053 ret = print_list_item(&d, &opts, &pb, current_time);
1054 if (ret < 0) {
1055 free(status_items);
1056 status_items = NULL;
1057 return ret;
1058 }
1059 free(parser_friendly_status_items);
1060 parser_friendly_status_items = pb.buf;
1061 return 1;
1062 }
1063
1064 /**
1065 * Mmap the given audio file and update statistics.
1066 *
1067 * \param aft_row Determines the audio file to be opened and updated.
1068 * \param score The score of the audio file.
1069 * \param afd Result pointer.
1070 *
1071 * On success, the numplayed field of the audio file selector info is increased
1072 * and the lastplayed time is set to the current time. Finally, the score of
1073 * the audio file is updated.
1074 *
1075 * \return Positive shmid on success, negative on errors.
1076 */
1077 int open_and_update_audio_file(struct osl_row *aft_row, long score,
1078 struct audio_file_data *afd)
1079 {
1080 unsigned char *aft_hash, file_hash[HASH_SIZE];
1081 struct osl_object afsi_obj;
1082 struct afs_info old_afsi, new_afsi;
1083 int ret = get_hash_of_row(aft_row, &aft_hash);
1084 struct afsi_change_event_data aced;
1085 struct osl_object map, chunk_table_obj;
1086 char *path;
1087
1088 if (ret < 0)
1089 return ret;
1090 ret = get_audio_file_path_of_row(aft_row, &path);
1091 if (ret < 0)
1092 return ret;
1093 PARA_NOTICE_LOG("%s\n", path);
1094 ret = get_afsi_object_of_row(aft_row, &afsi_obj);
1095 if (ret < 0)
1096 return ret;
1097 ret = load_afsi(&old_afsi, &afsi_obj);
1098 if (ret < 0)
1099 return ret;
1100 ret = get_afhi_of_row(aft_row, &afd->afhi);
1101 if (ret < 0)
1102 return ret;
1103 afd->afhi.chunk_table = NULL;
1104 ret = osl_open_disk_object(audio_file_table, aft_row,
1105 AFTCOL_CHUNKS, &chunk_table_obj);
1106 if (ret < 0)
1107 goto err;
1108 ret = mmap_full_file(path, O_RDONLY, &map.data,
1109 &map.size, &afd->fd);
1110 if (ret < 0)
1111 goto err;
1112 hash_function(map.data, map.size, file_hash);
1113 ret = hash_compare(file_hash, aft_hash);
1114 para_munmap(map.data, map.size);
1115 if (ret) {
1116 ret = -E_HASH_MISMATCH;
1117 goto err;
1118 }
1119 new_afsi = old_afsi;
1120 new_afsi.num_played++;
1121 new_afsi.last_played = time(NULL);
1122 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
1123
1124 afd->audio_format_id = old_afsi.audio_format_id;
1125 load_chunk_table(&afd->afhi, chunk_table_obj.data);
1126 ret = make_status_items(afd, &old_afsi, path, score, file_hash);
1127 if (ret < 0)
1128 goto err;
1129 aced.aft_row = aft_row;
1130 aced.old_afsi = &old_afsi;
1131 afs_event(AFSI_CHANGE, NULL, &aced);
1132 ret = save_afd(afd);
1133 err:
1134 free(afd->afhi.chunk_table);
1135 osl_close_disk_object(&chunk_table_obj);
1136 if (ret < 0)
1137 PARA_ERROR_LOG("%s: %s\n", path, para_strerror(-ret));
1138 return ret;
1139 }
1140
1141 static int ls_audio_format_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->afsi.audio_format_id, d2->afsi.audio_format_id);
1145 }
1146
1147 static int ls_duration_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->afhi.seconds_total, d2->afhi.seconds_total);
1151 }
1152
1153 static int ls_bitrate_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->afhi.bitrate, d2->afhi.bitrate);
1157 }
1158
1159 static int ls_lyrics_id_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->afsi.lyrics_id, d2->afsi.lyrics_id);
1163 }
1164
1165 static int ls_image_id_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->afsi.image_id, d2->afsi.image_id);
1169 }
1170
1171 static int ls_channels_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->afhi.channels, d2->afhi.channels);
1175 }
1176
1177 static int ls_frequency_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->afhi.frequency, d2->afhi.frequency);
1181 }
1182
1183 static int ls_num_played_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->afsi.num_played, d2->afsi.num_played);
1187 }
1188
1189 static int ls_last_played_compare(const void *a, const void *b)
1190 {
1191 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1192 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1193 }
1194
1195 static int ls_score_compare(const void *a, const void *b)
1196 {
1197 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1198 return NUM_COMPARE(d1->score, d2->score);
1199 }
1200
1201 static int ls_path_compare(const void *a, const void *b)
1202 {
1203 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1204 return strcmp(d1->path, d2->path);
1205 }
1206
1207 static int sort_matching_paths(struct ls_options *options)
1208 {
1209 size_t nmemb = options->num_matching_paths;
1210 size_t size = sizeof(*options->data_ptr);
1211 int (*compar)(const void *, const void *);
1212 int i;
1213
1214 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1215 for (i = 0; i < nmemb; i++)
1216 options->data_ptr[i] = options->data + i;
1217
1218 /* In these cases the array is already sorted */
1219 if (options->sorting == LS_SORT_BY_PATH
1220 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1221 && (options->flags & LS_FLAG_FULL_PATH))
1222 return 1;
1223 if (options->sorting == LS_SORT_BY_SCORE &&
1224 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1225 return 1;
1226
1227 switch (options->sorting) {
1228 case LS_SORT_BY_PATH:
1229 compar = ls_path_compare; break;
1230 case LS_SORT_BY_SCORE:
1231 compar = ls_score_compare; break;
1232 case LS_SORT_BY_LAST_PLAYED:
1233 compar = ls_last_played_compare; break;
1234 case LS_SORT_BY_NUM_PLAYED:
1235 compar = ls_num_played_compare; break;
1236 case LS_SORT_BY_FREQUENCY:
1237 compar = ls_frequency_compare; break;
1238 case LS_SORT_BY_CHANNELS:
1239 compar = ls_channels_compare; break;
1240 case LS_SORT_BY_IMAGE_ID:
1241 compar = ls_image_id_compare; break;
1242 case LS_SORT_BY_LYRICS_ID:
1243 compar = ls_lyrics_id_compare; break;
1244 case LS_SORT_BY_BITRATE:
1245 compar = ls_bitrate_compare; break;
1246 case LS_SORT_BY_DURATION:
1247 compar = ls_duration_compare; break;
1248 case LS_SORT_BY_AUDIO_FORMAT:
1249 compar = ls_audio_format_compare; break;
1250 default:
1251 return -E_BAD_SORT;
1252 }
1253 qsort(options->data_ptr, nmemb, size, compar);
1254 return 1;
1255 }
1256
1257 /* row is either an aft_row or a row of the score table */
1258 /* TODO: Only compute widths if we need them */
1259 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1260 {
1261 int ret, i;
1262 struct ls_options *options = ls_opts;
1263 struct ls_data *d;
1264 struct ls_widths *w;
1265 unsigned short num_digits;
1266 unsigned tmp;
1267 struct osl_row *aft_row;
1268 long score;
1269 char *path;
1270
1271 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1272 ret = get_score_and_aft_row(row, &score, &aft_row);
1273 if (ret < 0)
1274 return ret;
1275 } else
1276 aft_row = row;
1277 ret = get_audio_file_path_of_row(aft_row, &path);
1278 if (ret < 0)
1279 return ret;
1280 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1281 char *p = strrchr(path, '/');
1282 if (p)
1283 path = p + 1;
1284 }
1285 if (options->num_patterns) {
1286 for (i = 0; i < options->num_patterns; i++) {
1287 ret = fnmatch(options->patterns[i], path, 0);
1288 if (!ret)
1289 break;
1290 if (ret == FNM_NOMATCH)
1291 continue;
1292 return -E_FNMATCH;
1293 }
1294 if (i >= options->num_patterns) /* no match */
1295 return 1;
1296 }
1297 tmp = options->num_matching_paths++;
1298 if (options->num_matching_paths > options->array_size) {
1299 options->array_size++;
1300 options->array_size *= 2;
1301 options->data = para_realloc(options->data, options->array_size
1302 * sizeof(*options->data));
1303 }
1304 d = options->data + tmp;
1305 ret = get_afsi_of_row(aft_row, &d->afsi);
1306 if (ret < 0)
1307 return ret;
1308 ret = get_afhi_of_row(aft_row, &d->afhi);
1309 if (ret < 0)
1310 return ret;
1311 d->path = path;
1312 ret = get_hash_of_row(aft_row, &d->hash);
1313 if (ret < 0)
1314 goto err;
1315 w = &options->widths;
1316 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1317 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1318 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1319 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1320 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1321 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1322 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1323 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1324 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1325 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1326 /* get the number of chars to print this amount of time */
1327 num_digits = get_duration_width(d->afhi.seconds_total);
1328 w->duration_width = PARA_MAX(w->duration_width, num_digits);
1329 GET_NUM_DIGITS(d->afsi.amp, &num_digits);
1330 w->amp_width = PARA_MAX(w->amp_width, num_digits);
1331 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1332 GET_NUM_DIGITS(score, &num_digits);
1333 num_digits++; /* add one for the sign (space or "-") */
1334 w->score_width = PARA_MAX(w->score_width, num_digits);
1335 d->score = score;
1336 }
1337 return 1;
1338 err:
1339 return ret;
1340 }
1341
1342 static void com_ls_callback(int fd, const struct osl_object *query)
1343 {
1344 struct ls_options *opts = query->data;
1345 char *p, *pattern_start = (char *)query->data + sizeof(*opts);
1346 struct para_buffer b = {.max_size = shm_get_shmmax(),
1347 .flags = (opts->mode == LS_MODE_PARSER)? PBF_SIZE_PREFIX : 0,
1348 .max_size_handler = pass_buffer_as_shm, .private_data = &fd};
1349 int i = 0, ret;
1350 time_t current_time;
1351
1352 if (opts->num_patterns) {
1353 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1354 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1355 opts->patterns[i] = p;
1356 p += strlen(p) + 1;
1357 }
1358 } else
1359 opts->patterns = NULL;
1360 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1361 ret = admissible_file_loop(opts, prepare_ls_row);
1362 else
1363 ret = osl(osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1364 prepare_ls_row));
1365 if (ret < 0)
1366 goto out;
1367 if (opts->num_matching_paths == 0) {
1368 if (opts->num_patterns > 0)
1369 para_printf(&b, "no matches\n");
1370 goto out;
1371 }
1372 ret = sort_matching_paths(opts);
1373 if (ret < 0)
1374 goto out;
1375 time(&current_time);
1376 if (opts->flags & LS_FLAG_REVERSE)
1377 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1378 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1379 if (ret < 0)
1380 goto out;
1381 }
1382 else
1383 for (i = 0; i < opts->num_matching_paths; i++) {
1384 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1385 if (ret < 0)
1386 goto out;
1387 }
1388 out:
1389 if (b.offset)
1390 pass_buffer_as_shm(b.buf, b.offset, &fd);
1391 free(b.buf);
1392 free(opts->data);
1393 free(opts->data_ptr);
1394 free(opts->patterns);
1395 }
1396
1397 /*
1398 * TODO: flags -h (sort by hash)
1399 */
1400 int com_ls(struct stream_cipher_context *scc, int argc, char * const * const argv)
1401 {
1402 int i, ret;
1403 unsigned flags = 0;
1404 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1405 enum ls_listing_mode mode = LS_MODE_SHORT;
1406 struct ls_options opts = {.patterns = NULL};
1407 struct osl_object query = {.data = &opts, .size = sizeof(opts)};
1408
1409 for (i = 1; i < argc; i++) {
1410 const char *arg = argv[i];
1411 if (arg[0] != '-')
1412 break;
1413 if (!strcmp(arg, "--")) {
1414 i++;
1415 break;
1416 }
1417 if (!strncmp(arg, "-l", 2)) {
1418 if (!*(arg + 2)) {
1419 mode = LS_MODE_LONG;
1420 continue;
1421 }
1422 if (*(arg + 3))
1423 return -E_AFT_SYNTAX;
1424 switch(*(arg + 2)) {
1425 case 's':
1426 mode = LS_MODE_SHORT;
1427 continue;
1428 case 'l':
1429 mode = LS_MODE_LONG;
1430 continue;
1431 case 'v':
1432 mode = LS_MODE_VERBOSE;
1433 continue;
1434 case 'm':
1435 mode = LS_MODE_MBOX;
1436 continue;
1437 case 'c':
1438 mode = LS_MODE_CHUNKS;
1439 continue;
1440 case 'p':
1441 mode = LS_MODE_PARSER;
1442 continue;
1443 default:
1444 return -E_AFT_SYNTAX;
1445 }
1446 }
1447 if (!strcmp(arg, "-p")) {
1448 flags |= LS_FLAG_FULL_PATH;
1449 continue;
1450 }
1451 if (!strcmp(arg, "-a")) {
1452 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1453 continue;
1454 }
1455 if (!strcmp(arg, "-r")) {
1456 flags |= LS_FLAG_REVERSE;
1457 continue;
1458 }
1459 if (!strcmp(arg, "-d")) {
1460 flags |= LS_FLAG_UNIXDATE;
1461 continue;
1462 }
1463 if (!strncmp(arg, "-s", 2)) {
1464 if (!*(arg + 2) || *(arg + 3))
1465 return -E_AFT_SYNTAX;
1466 switch(*(arg + 2)) {
1467 case 'p':
1468 sort = LS_SORT_BY_PATH;
1469 continue;
1470 case 's': /* -ss implies -a */
1471 sort = LS_SORT_BY_SCORE;
1472 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1473 continue;
1474 case 'l':
1475 sort = LS_SORT_BY_LAST_PLAYED;
1476 continue;
1477 case 'n':
1478 sort = LS_SORT_BY_NUM_PLAYED;
1479 continue;
1480 case 'f':
1481 sort = LS_SORT_BY_FREQUENCY;
1482 continue;
1483 case 'c':
1484 sort = LS_SORT_BY_CHANNELS;
1485 continue;
1486 case 'i':
1487 sort = LS_SORT_BY_IMAGE_ID;
1488 continue;
1489 case 'y':
1490 sort = LS_SORT_BY_LYRICS_ID;
1491 continue;
1492 case 'b':
1493 sort = LS_SORT_BY_BITRATE;
1494 continue;
1495 case 'd':
1496 sort = LS_SORT_BY_DURATION;
1497 continue;
1498 case 'a':
1499 sort = LS_SORT_BY_AUDIO_FORMAT;
1500 continue;
1501 default:
1502 return -E_AFT_SYNTAX;
1503 }
1504 }
1505 return -E_AFT_SYNTAX;
1506 }
1507 opts.flags = flags;
1508 opts.sorting = sort;
1509 opts.mode = mode;
1510 opts.num_patterns = argc - i;
1511 ret = send_option_arg_callback_request(&query, opts.num_patterns,
1512 argv + i, com_ls_callback, sc_send_result, scc);
1513 return ret;
1514 }
1515
1516 /**
1517 * Call the given function for each file in the audio file table.
1518 *
1519 * \param private_data An arbitrary data pointer, passed to \a func.
1520 * \param func The custom function to be called.
1521 *
1522 * \return Standard.
1523 */
1524 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1525 {
1526 return osl(osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1527 func));
1528 }
1529
1530 static struct osl_row *find_hash_sister(unsigned char *hash)
1531 {
1532 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
1533 struct osl_row *row;
1534
1535 osl_get_row(audio_file_table, AFTCOL_HASH, &obj, &row);
1536 return row;
1537 }
1538
1539 /** The format of the data stored by save_audio_file_data(). */
1540 enum com_add_buffer_offsets {
1541 /** afhi (if present) starts here. */
1542 CAB_AFHI_OFFSET_POS = 0,
1543 /** Start of the chunk table (if present). */
1544 CAB_CHUNKS_OFFSET_POS = 2,
1545 /** Audio format id. */
1546 CAB_AUDIO_FORMAT_OFFSET = 4,
1547 /** Flags given to the add command. */
1548 CAB_FLAGS_OFFSET = 5,
1549 /** The hash of the audio file being added. */
1550 CAB_HASH_OFFSET = 9,
1551 /** Start of the path of the audio file. */
1552 CAB_PATH_OFFSET = (CAB_HASH_OFFSET + HASH_SIZE),
1553 };
1554
1555 /*
1556 * Store the given data to a single buffer. Doesn't need the audio file selector
1557 * info struct as the server knows it as well.
1558 *
1559 * It's OK to call this with afhi == NULL. In this case, the audio format
1560 * handler info won't be stored in the buffer.
1561 */
1562 static void save_add_callback_buffer(unsigned char *hash, const char *path,
1563 struct afh_info *afhi, uint32_t flags,
1564 uint8_t audio_format_num, struct osl_object *obj)
1565 {
1566 size_t path_len = strlen(path) + 1;
1567 size_t afhi_size = sizeof_afhi_buf(afhi);
1568 size_t size = CAB_PATH_OFFSET + path_len + afhi_size
1569 + sizeof_chunk_table(afhi);
1570 char *buf = para_malloc(size);
1571 uint16_t pos;
1572
1573 write_u8(buf + CAB_AUDIO_FORMAT_OFFSET, audio_format_num);
1574 write_u32(buf + CAB_FLAGS_OFFSET, flags);
1575
1576 memcpy(buf + CAB_HASH_OFFSET, hash, HASH_SIZE);
1577 strcpy(buf + CAB_PATH_OFFSET, path);
1578
1579 pos = CAB_PATH_OFFSET + path_len;
1580 PARA_DEBUG_LOG("size: %zu, afhi starts at %d\n", size, pos);
1581 PARA_DEBUG_LOG("last afhi byte: %p, pos %zu\n", buf + pos + afhi_size - 1,
1582 pos + afhi_size - 1);
1583 write_u16(buf + CAB_AFHI_OFFSET_POS, pos);
1584 save_afhi(afhi, buf + pos);
1585
1586 pos += afhi_size;
1587 PARA_DEBUG_LOG("size: %zu, chunks start at %d\n", size, pos);
1588 write_u16(buf + CAB_CHUNKS_OFFSET_POS, pos);
1589 if (afhi)
1590 save_chunk_table(afhi, buf + pos);
1591 PARA_DEBUG_LOG("last byte in buf: %p\n", buf + size - 1);
1592 obj->data = buf;
1593 obj->size = size;
1594 }
1595
1596 /*
1597
1598 Overview of the add command.
1599
1600 Input: What was passed to the callback by the command handler.
1601 ~~~~~~
1602 HS: Hash sister. Whether an audio file with identical hash
1603 already exists in the osl database.
1604
1605 PB: Path brother. Whether a file with the given path exists
1606 in the table.
1607
1608 F: Force flag given. Whether add was called with -f.
1609
1610 output: Action performed by the callback.
1611 ~~~~~~~
1612 AFHI: Whether afhi and chunk table are computed and sent.
1613 ACTION: Table modifications to be done by the callback.
1614
1615 +----+----+---+------+---------------------------------------------------+
1616 | HS | PB | F | AFHI | ACTION
1617 +----+----+---+------+---------------------------------------------------+
1618 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1619 | | update path, keep afsi
1620 +----+----+---+------+---------------------------------------------------+
1621 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1622 | | otherwise: remove PB, HS: update path, keep afhi,
1623 | | afsi.
1624 +----+----+---+------+---------------------------------------------------+
1625 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1626 | | HS, keep afsi
1627 +----+----+---+------+---------------------------------------------------+
1628 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1629 +----+----+---+------+---------------------------------------------------+
1630 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1631 | | (force has no effect)
1632 +----+----+---+------+---------------------------------------------------+
1633 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1634 +----+----+---+------+---------------------------------------------------+
1635 | N | N | Y | Y | (new file) create new entry (force has no effect)
1636 +----+----+---+------+---------------------------------------------------+
1637 | N | N | N | Y | (new file) create new entry
1638 +----+----+---+------+---------------------------------------------------+
1639
1640 Notes:
1641
1642 afhi <=> force or no HS
1643 F => AFHI
1644
1645 */
1646
1647 /** Flags passed to the add command. */
1648 enum com_add_flags {
1649 /** Skip paths that exist already. */
1650 ADD_FLAG_LAZY = 1,
1651 /** Force adding. */
1652 ADD_FLAG_FORCE = 2,
1653 /** Print what is being done. */
1654 ADD_FLAG_VERBOSE = 4,
1655 /** Try to add files with unknown suffixes. */
1656 ADD_FLAG_ALL = 8,
1657 };
1658
1659 static void com_add_callback(int fd, const struct osl_object *query)
1660 {
1661 char *buf = query->data, *path;
1662 struct osl_row *pb, *aft_row;
1663 struct osl_row *hs;
1664 struct osl_object objs[NUM_AFT_COLUMNS];
1665 unsigned char *hash;
1666 char asc[2 * HASH_SIZE + 1];
1667 int ret;
1668 char afsi_buf[AFSI_SIZE];
1669 uint32_t flags = read_u32(buf + CAB_FLAGS_OFFSET);
1670 struct afs_info default_afsi = {.last_played = 0};
1671 struct para_buffer msg = {.max_size = shm_get_shmmax(),
1672 .max_size_handler = pass_buffer_as_shm, .private_data = &fd};
1673 uint16_t afhi_offset, chunks_offset;
1674
1675 hash = (unsigned char *)buf + CAB_HASH_OFFSET;
1676 hash_to_asc(hash, asc);;
1677 objs[AFTCOL_HASH].data = buf + CAB_HASH_OFFSET;
1678 objs[AFTCOL_HASH].size = HASH_SIZE;
1679
1680 path = buf + CAB_PATH_OFFSET;
1681 objs[AFTCOL_PATH].data = path;
1682 objs[AFTCOL_PATH].size = strlen(path) + 1;
1683
1684 PARA_INFO_LOG("request to add %s\n", path);
1685 hs = find_hash_sister(hash);
1686 ret = aft_get_row_of_path(path, &pb);
1687 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1688 goto out;
1689 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1690 if (flags & ADD_FLAG_VERBOSE)
1691 ret = para_printf(&msg, "ignoring duplicate\n");
1692 else
1693 ret = 1;
1694 goto out;
1695 }
1696 if (hs && hs != pb) {
1697 struct osl_object obj;
1698 if (pb) { /* hs trumps pb, remove pb */
1699 if (flags & ADD_FLAG_VERBOSE) {
1700 ret = para_printf(&msg, "removing path brother\n");
1701 if (ret < 0)
1702 goto out;
1703 }
1704 ret = osl(osl_del_row(audio_file_table, pb));
1705 if (ret < 0)
1706 goto out;
1707 pb = NULL;
1708 }
1709 /* file rename, update hs' path */
1710 if (flags & ADD_FLAG_VERBOSE) {
1711 ret = osl(osl_get_object(audio_file_table, hs,
1712 AFTCOL_PATH, &obj));
1713 if (ret < 0)
1714 goto out;
1715 ret = para_printf(&msg, "renamed from %s\n", (char *)obj.data);
1716 if (ret < 0)
1717 goto out;
1718 }
1719 ret = osl(osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1720 &objs[AFTCOL_PATH]));
1721 if (ret < 0)
1722 goto out;
1723 afs_event(AUDIO_FILE_RENAME, &msg, hs);
1724 if (!(flags & ADD_FLAG_FORCE))
1725 goto out;
1726 }
1727 /* no hs or force mode, child must have sent afhi */
1728 afhi_offset = read_u16(buf + CAB_AFHI_OFFSET_POS);
1729 chunks_offset = read_u16(buf + CAB_CHUNKS_OFFSET_POS);
1730
1731 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1732 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1733 ret = -E_NO_AFHI;
1734 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1735 goto out;
1736 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1737 objs[AFTCOL_CHUNKS].size = query->size - chunks_offset;
1738 if (pb && !hs) { /* update pb's hash */
1739 char old_asc[2 * HASH_SIZE + 1];
1740 unsigned char *old_hash;
1741 ret = get_hash_of_row(pb, &old_hash);
1742 if (ret < 0)
1743 goto out;
1744 hash_to_asc(old_hash, old_asc);
1745 if (flags & ADD_FLAG_VERBOSE) {
1746 ret = para_printf(&msg, "file change: %s -> %s\n",
1747 old_asc, asc);
1748 if (ret < 0)
1749 goto out;
1750 }
1751 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1752 &objs[AFTCOL_HASH]);
1753 if (ret < 0)
1754 goto out;
1755 }
1756 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1757 struct osl_row *row = pb? pb : hs;
1758 /* update afhi and chunk_table */
1759 if (flags & ADD_FLAG_VERBOSE) {
1760 ret = para_printf(&msg, "updating afhi and chunk table\n");
1761 if (ret < 0)
1762 goto out;
1763 }
1764 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1765 &objs[AFTCOL_AFHI]));
1766 if (ret < 0)
1767 goto out;
1768 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1769 &objs[AFTCOL_CHUNKS]));
1770 if (ret < 0)
1771 goto out;
1772 afs_event(AFHI_CHANGE, &msg, row);
1773 goto out;
1774 }
1775 /* new entry, use default afsi */
1776 if (flags & ADD_FLAG_VERBOSE) {
1777 ret = para_printf(&msg, "new file\n");
1778 if (ret < 0)
1779 goto out;
1780 }
1781 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1782 default_afsi.audio_format_id = read_u8(buf + CAB_AUDIO_FORMAT_OFFSET);
1783
1784 objs[AFTCOL_AFSI].data = &afsi_buf;
1785 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1786 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1787 ret = osl(osl_add_and_get_row(audio_file_table, objs, &aft_row));
1788 afs_event(AUDIO_FILE_ADD, &msg, aft_row);
1789 out:
1790 if (ret < 0)
1791 para_printf(&msg, "%s\n", para_strerror(-ret));
1792 if (msg.offset)
1793 pass_buffer_as_shm(msg.buf, msg.offset, &fd);
1794 free(msg.buf);
1795 }
1796
1797 /** Used by com_add(). */
1798 struct private_add_data {
1799 /** The socket file descriptor, including stream cipher keys. */
1800 struct stream_cipher_context *scc;
1801 /** The given add flags. */
1802 uint32_t flags;
1803 };
1804
1805 static void path_brother_callback(int fd, const struct osl_object *query)
1806 {
1807 char *path = query->data;
1808 struct osl_row *path_brother;
1809 int ret = aft_get_row_of_path(path, &path_brother);
1810 if (ret < 0)
1811 return;
1812 pass_buffer_as_shm((char *)&path_brother, sizeof(path_brother), &fd);
1813 }
1814
1815 static void hash_sister_callback(int fd, const struct osl_object *query)
1816 {
1817 unsigned char *hash = query->data;
1818 struct osl_row *hash_sister;
1819
1820 hash_sister = find_hash_sister(hash);
1821 if (!hash_sister)
1822 return;
1823 pass_buffer_as_shm((char *)&hash_sister, sizeof(hash_sister), &fd);
1824 }
1825
1826 static int get_row_pointer_from_result(struct osl_object *result, void *private)
1827 {
1828 struct osl_row **row = private;
1829 *row = *(struct osl_row **)(result->data);
1830 return 1;
1831 }
1832
1833 static int add_one_audio_file(const char *path, void *private_data)
1834 {
1835 int ret, send_ret = 1, fd;
1836 uint8_t format_num = -1;
1837 struct private_add_data *pad = private_data;
1838 struct afh_info afhi, *afhi_ptr = NULL;
1839 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1840 struct osl_object map, obj = {.data = NULL}, query;
1841 unsigned char hash[HASH_SIZE];
1842
1843 ret = guess_audio_format(path);
1844 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL))
1845 goto out_free;
1846 query.data = (char *)path;
1847 query.size = strlen(path) + 1;
1848 ret = send_callback_request(path_brother_callback, &query,
1849 get_row_pointer_from_result, &pb);
1850 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1851 goto out_free;
1852 ret = 1;
1853 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1854 if (pad->flags & ADD_FLAG_VERBOSE)
1855 send_ret = sc_send_va_buffer(pad->scc,
1856 "lazy-ignore: %s\n", path);
1857 goto out_free;
1858 }
1859 /* We still want to add this file. Compute its hash. */
1860 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &fd);
1861 if (ret < 0)
1862 goto out_free;
1863 hash_function(map.data, map.size, hash);
1864
1865 /* Check whether the database contains a file with the same hash. */
1866 query.data = hash;
1867 query.size = HASH_SIZE;
1868 ret = send_callback_request(hash_sister_callback, &query,
1869 get_row_pointer_from_result, &hs);
1870 if (ret < 0)
1871 goto out_unmap;
1872 /* Return success if we already know this file. */
1873 ret = 1;
1874 if (pb && hs && hs == pb && !(pad->flags & ADD_FLAG_FORCE)) {
1875 if (pad->flags & ADD_FLAG_VERBOSE)
1876 send_ret = sc_send_va_buffer(pad->scc,
1877 "%s exists, not forcing update\n", path);
1878 goto out_unmap;
1879 }
1880 /*
1881 * We won't recalculate the audio format info and the chunk table if
1882 * there is a hash sister and FORCE was not given.
1883 */
1884 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1885 ret = compute_afhi(path, map.data, map.size, fd, &afhi);
1886 if (ret < 0)
1887 goto out_unmap;
1888 format_num = ret;
1889 afhi_ptr = &afhi;
1890 }
1891 munmap(map.data, map.size);
1892 close(fd);
1893 if (pad->flags & ADD_FLAG_VERBOSE) {
1894 send_ret = sc_send_va_buffer(pad->scc, "adding %s\n", path);
1895 if (send_ret < 0)
1896 goto out_free;
1897 }
1898 save_add_callback_buffer(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1899 /* Ask afs to consider this entry for adding. */
1900 ret = send_callback_request(com_add_callback, &obj, sc_send_result, pad->scc);
1901 goto out_free;
1902
1903 out_unmap:
1904 close(fd);
1905 munmap(map.data, map.size);
1906 out_free:
1907 if (ret < 0 && send_ret >= 0)
1908 send_ret = sc_send_va_buffer(pad->scc,
1909 "failed to add %s (%s)\n", path, para_strerror(-ret));
1910 free(obj.data);
1911 if (afhi_ptr) {
1912 free(afhi_ptr->chunk_table);
1913 free(afhi_ptr->techinfo);
1914 free(afhi_ptr->tags.artist);
1915 free(afhi_ptr->tags.title);
1916 free(afhi_ptr->tags.year);
1917 free(afhi_ptr->tags.album);
1918 free(afhi_ptr->tags.comment);
1919 }
1920 /* Stop adding files only on send errors. */
1921 return send_ret;
1922 }
1923
1924 int com_add(struct stream_cipher_context *scc, int argc, char * const * const argv)
1925 {
1926 int i, ret;
1927 struct private_add_data pad = {.scc = scc, .flags = 0};
1928 struct stat statbuf;
1929
1930 for (i = 1; i < argc; i++) {
1931 const char *arg = argv[i];
1932 if (arg[0] != '-')
1933 break;
1934 if (!strcmp(arg, "--")) {
1935 i++;
1936 break;
1937 }
1938 if (!strcmp(arg, "-a")) {
1939 pad.flags |= ADD_FLAG_ALL;
1940 continue;
1941 }
1942 if (!strcmp(arg, "-l")) {
1943 pad.flags |= ADD_FLAG_LAZY;
1944 continue;
1945 }
1946 if (!strcmp(arg, "-f")) {
1947 pad.flags |= ADD_FLAG_FORCE;
1948 continue;
1949 }
1950 if (!strcmp(arg, "-v")) {
1951 pad.flags |= ADD_FLAG_VERBOSE;
1952 continue;
1953 }
1954 }
1955 if (argc <= i)
1956 return -E_AFT_SYNTAX;
1957 for (; i < argc; i++) {
1958 char *path;
1959 ret = verify_path(argv[i], &path);
1960 if (ret < 0) {
1961 ret = sc_send_va_buffer(scc, "%s: %s\n", argv[i],
1962 para_strerror(-ret));
1963 if (ret < 0)
1964 return ret;
1965 continue;
1966 }
1967 ret = stat(path, &statbuf);
1968 if (ret < 0) {
1969 ret = sc_send_va_buffer(scc, "failed to stat %s (%s)\n", path,
1970 strerror(errno));
1971 free(path);
1972 if (ret < 0)
1973 return ret;
1974 continue;
1975 }
1976 if (S_ISDIR(statbuf.st_mode))
1977 ret = for_each_file_in_dir(path, add_one_audio_file,
1978 &pad);
1979 else
1980 ret = add_one_audio_file(path, &pad);
1981 if (ret < 0) {
1982 sc_send_va_buffer(scc, "%s: %s\n", path, para_strerror(-ret));
1983 free(path);
1984 return ret;
1985 }
1986 free(path);
1987 }
1988 return 1;
1989
1990 }
1991
1992 /**
1993 * Flags used by the touch command.
1994 *
1995 * \sa com_touch().
1996 */
1997 enum touch_flags {
1998 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1999 TOUCH_FLAG_FNM_PATHNAME = 1,
2000 /** Activates verbose mode. */
2001 TOUCH_FLAG_VERBOSE = 2
2002 };
2003
2004 /** Options used by com_touch(). */
2005 struct com_touch_options {
2006 /** New num_played value. */
2007 int32_t num_played;
2008 /** New last played count. */
2009 int64_t last_played;
2010 /** New lyrics id. */
2011 int32_t lyrics_id;
2012 /** New image id. */
2013 int32_t image_id;
2014 /** New amplification value. */
2015 int32_t amp;
2016 /** Command line flags (see \ref touch_flags). */
2017 unsigned flags;
2018 };
2019
2020 /** Data passed to the action handler of com_touch(). */
2021 struct touch_action_data {
2022 /** Command line options (see \ref com_touch_options). */
2023 struct com_touch_options *cto;
2024 /** Message buffer. */
2025 struct para_buffer pb;
2026 };
2027
2028 static int touch_audio_file(__a_unused struct osl_table *table,
2029 struct osl_row *row, const char *name, void *data)
2030 {
2031 struct touch_action_data *tad = data;
2032 struct osl_object obj;
2033 struct afs_info old_afsi, new_afsi;
2034 int ret, no_options = tad->cto->num_played < 0 && tad->cto->last_played < 0 &&
2035 tad->cto->lyrics_id < 0 && tad->cto->image_id < 0 && tad->cto->amp < 0;
2036 struct afsi_change_event_data aced;
2037
2038 ret = get_afsi_object_of_row(row, &obj);
2039 if (ret < 0)
2040 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2041 ret = load_afsi(&old_afsi, &obj);
2042 if (ret < 0)
2043 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2044 new_afsi = old_afsi;
2045 if (no_options) {
2046 new_afsi.num_played++;
2047 new_afsi.last_played = time(NULL);
2048 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2049 ret = para_printf(&tad->pb, "%s: num_played = %u, "
2050 "last_played = now()\n", name,
2051 new_afsi.num_played);
2052 if (ret < 0)
2053 return ret;
2054 }
2055 } else {
2056 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2057 ret = para_printf(&tad->pb, "touching %s\n", name);
2058 if (ret < 0)
2059 return ret;
2060 }
2061 if (tad->cto->lyrics_id >= 0)
2062 new_afsi.lyrics_id = tad->cto->lyrics_id;
2063 if (tad->cto->image_id >= 0)
2064 new_afsi.image_id = tad->cto->image_id;
2065 if (tad->cto->num_played >= 0)
2066 new_afsi.num_played = tad->cto->num_played;
2067 if (tad->cto->last_played >= 0)
2068 new_afsi.last_played = tad->cto->last_played;
2069 if (tad->cto->amp >= 0)
2070 new_afsi.amp = tad->cto->amp;
2071 }
2072 save_afsi(&new_afsi, &obj); /* in-place update */
2073 aced.aft_row = row;
2074 aced.old_afsi = &old_afsi;
2075 afs_event(AFSI_CHANGE, &tad->pb, &aced);
2076 return 1;
2077 }
2078
2079 static void com_touch_callback(int fd, const struct osl_object *query)
2080 {
2081 struct touch_action_data tad = {.cto = query->data,
2082 .pb = {
2083 .max_size = shm_get_shmmax(),
2084 .private_data = &fd,
2085 .max_size_handler = pass_buffer_as_shm
2086 }
2087 };
2088 int ret, ret2 = 0;
2089 struct pattern_match_data pmd = {
2090 .table = audio_file_table,
2091 .loop_col_num = AFTCOL_HASH,
2092 .match_col_num = AFTCOL_PATH,
2093 .patterns = {.data = (char *)query->data + sizeof(*tad.cto),
2094 .size = query->size - sizeof(*tad.cto)},
2095 .data = &tad,
2096 .action = touch_audio_file
2097 };
2098 if (tad.cto->flags & TOUCH_FLAG_FNM_PATHNAME)
2099 pmd.fnmatch_flags |= FNM_PATHNAME;
2100 ret = for_each_matching_row(&pmd);
2101 if (ret < 0)
2102 ret2 = para_printf(&tad.pb, "%s\n", para_strerror(-ret));
2103 else if (pmd.num_matches == 0)
2104 ret2 = para_printf(&tad.pb, "no matches\n");
2105 if (ret2 >= 0 && tad.pb.offset)
2106 pass_buffer_as_shm(tad.pb.buf, tad.pb.offset, &fd);
2107 free(tad.pb.buf);
2108 }
2109
2110 int com_touch(struct stream_cipher_context *scc, int argc, char * const * const argv)
2111 {
2112 struct com_touch_options cto = {
2113 .num_played = -1,
2114 .last_played = -1,
2115 .lyrics_id = -1,
2116 .image_id = -1,
2117 .amp = -1,
2118 };
2119 struct osl_object query = {.data = &cto, .size = sizeof(cto)};
2120 int i, ret;
2121
2122
2123 for (i = 1; i < argc; i++) {
2124 const char *arg = argv[i];
2125 if (arg[0] != '-')
2126 break;
2127 if (!strcmp(arg, "--")) {
2128 i++;
2129 break;
2130 }
2131 if (!strncmp(arg, "-n=", 3)) {
2132 ret = para_atoi32(arg + 3, &cto.num_played);
2133 if (ret < 0)
2134 return ret;
2135 continue;
2136 }
2137 if (!strncmp(arg, "-l=", 3)) {
2138 ret = para_atoi64(arg + 3, &cto.last_played);
2139 if (ret < 0)
2140 return ret;
2141 continue;
2142 }
2143 if (!strncmp(arg, "-y=", 3)) {
2144 ret = para_atoi32(arg + 3, &cto.lyrics_id);
2145 if (ret < 0)
2146 return ret;
2147 continue;
2148 }
2149 if (!strncmp(arg, "-i=", 3)) {
2150 ret = para_atoi32(arg + 3, &cto.image_id);
2151 if (ret < 0)
2152 return ret;
2153 continue;
2154 }
2155 if (!strncmp(arg, "-a=", 3)) {
2156 int32_t val;
2157 ret = para_atoi32(arg + 3, &val);
2158 if (ret < 0)
2159 return ret;
2160 if (val < 0 || val > 255)
2161 return -ERRNO_TO_PARA_ERROR(EINVAL);
2162 cto.amp = val;
2163 continue;
2164 }
2165 if (!strcmp(arg, "-p")) {
2166 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
2167 continue;
2168 }
2169 if (!strcmp(arg, "-v")) {
2170 cto.flags |= TOUCH_FLAG_VERBOSE;
2171 continue;
2172 }
2173 break; /* non-option starting with dash */
2174 }
2175 if (i >= argc)
2176 return -E_AFT_SYNTAX;
2177 ret = send_option_arg_callback_request(&query, argc - i,
2178 argv + i, com_touch_callback, sc_send_result, scc);
2179 if (ret < 0)
2180 sc_send_va_buffer(scc, "%s\n", para_strerror(-ret));
2181 return ret;
2182 }
2183
2184 /** Flags for com_rm(). */
2185 enum rm_flags {
2186 /** -v */
2187 RM_FLAG_VERBOSE = 1,
2188 /** -f */
2189 RM_FLAG_FORCE = 2,
2190 /** -p */
2191 RM_FLAG_FNM_PATHNAME = 4
2192 };
2193
2194 /** Data passed to the action handler of com_rm(). */
2195 struct com_rm_action_data {
2196 /** Command line flags ((see \ref rm_flags). */
2197 uint32_t flags;
2198 /** Message buffer. */
2199 struct para_buffer pb;
2200 };
2201
2202 static int remove_audio_file(__a_unused struct osl_table *table,
2203 struct osl_row *row, const char *name, void *data)
2204 {
2205 struct com_rm_action_data *crd = data;
2206 int ret;
2207
2208 if (crd->flags & RM_FLAG_VERBOSE) {
2209 ret = para_printf(&crd->pb, "removing %s\n", name);
2210 if (ret < 0)
2211 return ret;
2212 }
2213 afs_event(AUDIO_FILE_REMOVE, &crd->pb, row);
2214 ret = osl(osl_del_row(audio_file_table, row));
2215 if (ret < 0)
2216 para_printf(&crd->pb, "%s: %s\n", name, para_strerror(-ret));
2217 return ret;
2218 }
2219
2220 static void com_rm_callback(int fd, const struct osl_object *query)
2221 {
2222 struct com_rm_action_data crd = {.flags = *(uint32_t *)query->data,
2223 .pb = {
2224 .max_size = shm_get_shmmax(),
2225 .private_data = &fd,
2226 .max_size_handler = pass_buffer_as_shm
2227 }
2228 };
2229 int ret;
2230 struct pattern_match_data pmd = {
2231 .table = audio_file_table,
2232 .loop_col_num = AFTCOL_HASH,
2233 .match_col_num = AFTCOL_PATH,
2234 .patterns = {.data = (char *)query->data + sizeof(uint32_t),
2235 .size = query->size - sizeof(uint32_t)},
2236 .data = &crd,
2237 .action = remove_audio_file
2238 };
2239 if (crd.flags & RM_FLAG_FNM_PATHNAME)
2240 pmd.fnmatch_flags |= FNM_PATHNAME;
2241 ret = for_each_matching_row(&pmd);
2242 if (ret < 0) {
2243 para_printf(&crd.pb, "%s\n", para_strerror(-ret));
2244 return;
2245 }
2246 if ((pmd.num_matches == 0) && !(crd.flags & RM_FLAG_FORCE))
2247 ret = para_printf(&crd.pb, "no matches -- nothing removed\n");
2248 else if (crd.flags & RM_FLAG_VERBOSE) {
2249 ret = para_printf(&crd.pb, "removed %u files\n",
2250 pmd.num_matches);
2251 }
2252 if (ret >= 0 && crd.pb.offset)
2253 pass_buffer_as_shm(crd.pb.buf, crd.pb.offset, &fd);
2254 free(crd.pb.buf);
2255 }
2256
2257 /* TODO options: -r (recursive) */
2258 int com_rm(struct stream_cipher_context *scc, int argc, char * const * const argv)
2259 {
2260 uint32_t flags = 0;
2261 struct osl_object query = {.data = &flags, .size = sizeof(flags)};
2262 int i, ret;
2263
2264 for (i = 1; i < argc; i++) {
2265 const char *arg = argv[i];
2266 if (arg[0] != '-')
2267 break;
2268 if (!strcmp(arg, "--")) {
2269 i++;
2270 break;
2271 }
2272 if (!strcmp(arg, "-f")) {
2273 flags |= RM_FLAG_FORCE;
2274 continue;
2275 }
2276 if (!strcmp(arg, "-p")) {
2277 flags |= RM_FLAG_FNM_PATHNAME;
2278 continue;
2279 }
2280 if (!strcmp(arg, "-v")) {
2281 flags |= RM_FLAG_VERBOSE;
2282 continue;
2283 }
2284 break;
2285 }
2286 if (i >= argc)
2287 return -E_AFT_SYNTAX;
2288 ret = send_option_arg_callback_request(&query, argc - i, argv + i,
2289 com_rm_callback, sc_send_result, scc);
2290 if (ret < 0)
2291 sc_send_va_buffer(scc, "%s\n", para_strerror(-ret));
2292 return ret;
2293 }
2294
2295 /**
2296 * Flags used by the cpsi command.
2297 *
2298 * \sa com_cpsi().
2299 */
2300 enum cpsi_flags {
2301 /** Whether the lyrics id should be copied. */
2302 CPSI_FLAG_COPY_LYRICS_ID = 1,
2303 /** Whether the image id should be copied. */
2304 CPSI_FLAG_COPY_IMAGE_ID = 2,
2305 /** Whether the lastplayed time should be copied. */
2306 CPSI_FLAG_COPY_LASTPLAYED = 4,
2307 /** Whether the numplayed count should be copied. */
2308 CPSI_FLAG_COPY_NUMPLAYED = 8,
2309 /** Whether the attributes should be copied. */
2310 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2311 /** Activates verbose mode. */
2312 CPSI_FLAG_VERBOSE = 32,
2313 };
2314
2315 /** Data passed to the action handler of com_cpsi(). */
2316 struct cpsi_action_data {
2317 /** command line flags (see \ref cpsi_flags). */
2318 unsigned flags;
2319 /** Message buffer. */
2320 struct para_buffer pb;
2321 /** Values are copied from here. */
2322 struct afs_info source_afsi;
2323 };
2324
2325 static int copy_selector_info(__a_unused struct osl_table *table,
2326 struct osl_row *row, const char *name, void *data)
2327 {
2328 struct cpsi_action_data *cad = data;
2329 struct osl_object target_afsi_obj;
2330 int ret;
2331 struct afs_info old_afsi, target_afsi;
2332 struct afsi_change_event_data aced;
2333
2334 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2335 if (ret < 0)
2336 return ret;
2337 load_afsi(&target_afsi, &target_afsi_obj);
2338 old_afsi = target_afsi;
2339 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2340 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2341 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2342 target_afsi.image_id = cad->source_afsi.image_id;
2343 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2344 target_afsi.last_played = cad->source_afsi.last_played;
2345 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2346 target_afsi.num_played = cad->source_afsi.num_played;
2347 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2348 target_afsi.attributes = cad->source_afsi.attributes;
2349 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2350 if (cad->flags & CPSI_FLAG_VERBOSE) {
2351 ret = para_printf(&cad->pb, "copied afsi to %s\n", name);
2352 if (ret < 0)
2353 return ret;
2354 }
2355 aced.aft_row = row;
2356 aced.old_afsi = &old_afsi;
2357 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2358 return 1;
2359 }
2360
2361 static void com_cpsi_callback(int fd, const struct osl_object *query)
2362 {
2363 struct cpsi_action_data cad = {
2364 .flags = *(unsigned *)query->data,
2365 .pb = {
2366 .max_size = shm_get_shmmax(),
2367 .private_data = &fd,
2368 .max_size_handler = pass_buffer_as_shm
2369 }
2370 };
2371 int ret;
2372 char *source_path = (char *)query->data + sizeof(cad.flags);
2373 struct pattern_match_data pmd = {
2374 .table = audio_file_table,
2375 .loop_col_num = AFTCOL_HASH,
2376 .match_col_num = AFTCOL_PATH,
2377 .patterns = {.data = source_path + strlen(source_path) + 1,
2378 .size = query->size - sizeof(cad.flags)
2379 - strlen(source_path) - 1},
2380 .data = &cad,
2381 .action = copy_selector_info
2382 };
2383
2384 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2385 if (ret < 0)
2386 goto out;
2387 ret = for_each_matching_row(&pmd);
2388 out:
2389 if (ret < 0)
2390 para_printf(&cad.pb, "%s\n", para_strerror(-ret));
2391 else if (cad.flags & CPSI_FLAG_VERBOSE) {
2392 if (pmd.num_matches > 0)
2393 para_printf(&cad.pb, "copied requested afsi from %s "
2394 "to %u files\n", source_path, pmd.num_matches);
2395 else
2396 para_printf(&cad.pb, "nothing copied\n");
2397 }
2398 if (cad.pb.offset)
2399 pass_buffer_as_shm(cad.pb.buf, cad.pb.offset, &fd);
2400 free(cad.pb.buf);
2401 }
2402
2403 int com_cpsi(struct stream_cipher_context *scc, int argc, char * const * const argv)
2404 {
2405 unsigned flags = 0;
2406 int i, ret;
2407 struct osl_object options = {.data = &flags, .size = sizeof(flags)};
2408
2409 for (i = 1; i < argc; i++) {
2410 const char *arg = argv[i];
2411 if (arg[0] != '-')
2412 break;
2413 if (!strcmp(arg, "--")) {
2414 i++;
2415 break;
2416 }
2417 if (!strcmp(arg, "-y")) {
2418 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2419 continue;
2420 }
2421 if (!strcmp(arg, "-i")) {
2422 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2423 continue;
2424 }
2425 if (!strcmp(arg, "-l")) {
2426 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2427 continue;
2428 }
2429 if (!strcmp(arg, "-n")) {
2430 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2431 continue;
2432 }
2433 if (!strcmp(arg, "-a")) {
2434 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2435 continue;
2436 }
2437 if (!strcmp(arg, "-v")) {
2438 flags |= CPSI_FLAG_VERBOSE;
2439 continue;
2440 }
2441 break;
2442 }
2443 if (i + 1 >= argc) /* need at least source file and pattern */
2444 return -E_AFT_SYNTAX;
2445 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2446 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2447 ret = send_option_arg_callback_request(&options, argc - i, argv + i,
2448 com_cpsi_callback, sc_send_result, scc);
2449 if (ret < 0)
2450 sc_send_va_buffer(scc, "%s\n", para_strerror(-ret));
2451 return ret;
2452 }
2453
2454 static void afs_stat_callback(int fd, const struct osl_object *query)
2455 {
2456 int *parser_friendly = query->data;
2457 char *buf = *parser_friendly?
2458 parser_friendly_status_items : status_items;
2459
2460 if (!buf)
2461 return;
2462 pass_buffer_as_shm(buf, strlen(buf), &fd);
2463 }
2464
2465 /**
2466 * Get the current afs status items from the afs process and send it.
2467 *
2468 * \param scc The stream cipher context for data encryption.
2469 * \param parser_friendly Whether parser-friendly output format should be used.
2470 *
2471 * As the contents of the afs status items change in time and the command
2472 * handler only has a COW version created at fork time, it can not send
2473 * up-to-date afs status items directly. Therefore the usual callback mechanism
2474 * is used to pass the status items from the afs process to the command handler
2475 * via a shared memory area and a pipe.
2476 *
2477 * \return The return value of the underyling call to \ref send_callback_request().
2478 */
2479 int send_afs_status(struct stream_cipher_context *scc, int parser_friendly)
2480 {
2481 struct osl_object query = {.data = &parser_friendly,
2482 .size = sizeof(parser_friendly)};
2483
2484 return send_callback_request(afs_stat_callback, &query, sc_send_result, scc);
2485 }
2486
2487 /* TODO: optionally fix problems by removing offending rows */
2488 static int check_audio_file(struct osl_row *row, void *data)
2489 {
2490 char *path;
2491 struct para_buffer *pb = data;
2492 struct stat statbuf;
2493 int ret = get_audio_file_path_of_row(row, &path);
2494 struct afs_info afsi;
2495 char *blob_name;
2496
2497 if (ret < 0)
2498 return para_printf(pb, "%s\n", para_strerror(-ret));
2499 if (stat(path, &statbuf) < 0) {
2500 ret = para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2501 if (ret < 0)
2502 return ret;
2503 } else {
2504 if (!S_ISREG(statbuf.st_mode)) {
2505 ret = para_printf(pb, "%s: not a regular file\n", path);
2506 if (ret < 0)
2507 return ret;
2508 }
2509 }
2510 ret = get_afsi_of_row(row, &afsi);
2511 if (ret < 0)
2512 return para_printf(pb, "%s: %s\n", path, para_strerror(-ret));
2513 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2514 if (ret < 0) {
2515 ret = para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2516 para_strerror(-ret));
2517 if (ret < 0)
2518 return ret;
2519 }
2520 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2521 if (ret < 0)
2522 ret = para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2523 para_strerror(-ret));
2524 return ret;
2525 }
2526
2527 /**
2528 * Check the audio file table for inconsistencies.
2529 *
2530 * \param fd The afs socket.
2531 * \param query Unused.
2532 *
2533 * This function always succeeds.
2534 *
2535 * \sa com_check().
2536 */
2537 void aft_check_callback(int fd, __a_unused const struct osl_object *query)
2538 {
2539 struct para_buffer pb = {
2540 .max_size = shm_get_shmmax(),
2541 .private_data = &fd,
2542 .max_size_handler = pass_buffer_as_shm
2543 };
2544 int ret = para_printf(&pb, "checking audio file table...\n");
2545
2546 if (ret < 0)
2547 return;
2548 audio_file_loop(&pb, check_audio_file);
2549 if (pb.offset)
2550 pass_buffer_as_shm(pb.buf, pb.offset, &fd);
2551 free(pb.buf);
2552 }
2553
2554 /**
2555 * Close the audio file table.
2556 *
2557 * \param flags Usual flags that are passed to osl_close_table().
2558 *
2559 * \sa osl_close_table().
2560 */
2561 static void aft_close(void)
2562 {
2563 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2564 audio_file_table = NULL;
2565 }
2566
2567 /**
2568 * Open the audio file table.
2569 *
2570 * \param dir The database directory.
2571 *
2572 * \return Standard.
2573 *
2574 * \sa osl_open_table().
2575 */
2576 static int aft_open(const char *dir)
2577 {
2578 int ret;
2579
2580 audio_file_table_desc.dir = dir;
2581 ret = osl(osl_open_table(&audio_file_table_desc, &audio_file_table));
2582 if (ret >= 0) {
2583 unsigned num;
2584 osl_get_num_rows(audio_file_table, &num);
2585 PARA_INFO_LOG("audio file table contains %d files\n", num);
2586 return ret;
2587 }
2588 PARA_INFO_LOG("failed to open audio file table\n");
2589 audio_file_table = NULL;
2590 if (ret >= 0 || ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_NOENT))
2591 return 1;
2592 return ret;
2593 }
2594
2595 static int aft_create(const char *dir)
2596 {
2597 audio_file_table_desc.dir = dir;
2598 return osl(osl_create_table(&audio_file_table_desc));
2599 }
2600
2601 static int clear_attribute(struct osl_row *row, void *data)
2602 {
2603 struct rmatt_event_data *red = data;
2604 struct afs_info afsi;
2605 struct osl_object obj;
2606 int ret = get_afsi_object_of_row(row, &obj);
2607 uint64_t mask = ~(1ULL << red->bitnum);
2608
2609 if (ret < 0)
2610 return ret;
2611 ret = load_afsi(&afsi, &obj);
2612 if (ret < 0)
2613 return ret;
2614 afsi.attributes &= mask;
2615 save_afsi(&afsi, &obj);
2616 return 1;
2617 }
2618
2619 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2620 void *data)
2621 {
2622 int ret;
2623
2624 switch(event) {
2625 case ATTRIBUTE_REMOVE: {
2626 const struct rmatt_event_data *red = data;
2627 ret = para_printf(pb, "clearing attribute %s (bit %u) from all "
2628 "entries in the audio file table\n", red->name,
2629 red->bitnum);
2630 if (ret < 0)
2631 return ret;
2632 return audio_file_loop(data, clear_attribute);
2633 }
2634 default:
2635 return 1;
2636 }
2637 }
2638
2639 /**
2640 * Initialize the audio file table.
2641 *
2642 * \param t Pointer to the structure to be initialized.
2643 */
2644 void aft_init(struct afs_table *t)
2645 {
2646 t->open = aft_open;
2647 t->close = aft_close;
2648 t->create = aft_create;
2649 t->event_handler = aft_event_handler;
2650 }