build: Convert alsa detection to new macros.
[paraslash.git] / aft.c
1 /*
2 * Copyright (C) 2007 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 /* Data about one audio file. Needed for ls and stat output. */
76 struct ls_data {
77 /* Usual audio format handler information. */
78 struct afh_info afhi;
79 /* Audio file selector information. */
80 struct afs_info afsi;
81 /* The full path of the audio file. */
82 char *path;
83 /* The score value (if -a was given). */
84 long score;
85 /* The hash value of the audio file data. */
86 unsigned char *hash;
87 };
88
89 /** The flags accepted by the ls command. */
90 enum ls_flags {
91 /** -p */
92 LS_FLAG_FULL_PATH = 1,
93 /** -a */
94 LS_FLAG_ADMISSIBLE_ONLY = 2,
95 /** -r */
96 LS_FLAG_REVERSE = 4,
97 /** -d */
98 LS_FLAG_UNIXDATE = 8,
99 };
100
101 /**
102 * The size of the individual output fields of the ls command.
103 *
104 * These depend on the content being listed. For example, if each listed file
105 * is shorter than an hour, the duration format is set to mm:ss. Otherwise it
106 * is set to hh:mm:ss.
107 */
108 struct ls_widths {
109 /** size of the score field. */
110 unsigned short score_width;
111 /** size of the image id field. */
112 unsigned short image_id_width;
113 /** size of the lyrics id field. */
114 unsigned short lyrics_id_width;
115 /** size of the bitrate field. */
116 unsigned short bitrate_width;
117 /** size of the frequency field. */
118 unsigned short frequency_width;
119 /** size of the duration field. */
120 unsigned short duration_width;
121 /** size of the num played field. */
122 unsigned short num_played_width;
123 /** size of the amp field. */
124 unsigned short amp_width;
125 /** size of the audio format field. */
126 unsigned short audio_format_width;
127 };
128
129 /** Data passed from the ls command handler to its callback function. */
130 struct ls_options {
131 /** The given command line flags. */
132 unsigned flags;
133 /** The sorting method given at the command line. */
134 enum ls_sorting_method sorting;
135 /** The given listing mode (short, long, verbose, mbox). */
136 enum ls_listing_mode mode;
137 /** The arguments passed to the ls command. */
138 char **patterns;
139 /** Number of non-option arguments. */
140 int num_patterns;
141 /** Used for long listing mode to align the output fields. */
142 struct ls_widths widths;
143 /** Size of the \a data array. */
144 uint32_t array_size;
145 /** Number of used entries in the data array. */
146 uint32_t num_matching_paths;
147 /** Array of matching entries. */
148 struct ls_data *data;
149 /** Used to sort the array. */
150 struct ls_data **data_ptr;
151 };
152
153 /**
154 * Describes the layout of the mmapped-afs info struct.
155 *
156 * \sa struct afs_info.
157 */
158 enum afsi_offsets {
159 /** Where .last_played is stored. */
160 AFSI_LAST_PLAYED_OFFSET = 0,
161 /** Storage position of the attributes bitmap. */
162 AFSI_ATTRIBUTES_OFFSET = 8,
163 /** Storage position of the .num_played field. */
164 AFSI_NUM_PLAYED_OFFSET = 16,
165 /** Storage position of the .image_id field. */
166 AFSI_IMAGE_ID_OFFSET = 20,
167 /** Storage position of the .lyrics_id field. */
168 AFSI_LYRICS_ID_OFFSET = 24,
169 /** Storage position of the .audio_format_id field. */
170 AFSI_AUDIO_FORMAT_ID_OFFSET = 28,
171 /** Storage position of the amplification field. */
172 AFSI_AMP_OFFSET = 29,
173 /** 2 bytes reserved space for future usage. */
174 AFSI_AUDIO_FORMAT_UNUSED_OFFSET = 30,
175 /** On-disk storage space needed. */
176 AFSI_SIZE = 32
177 };
178
179 /*
180 * Convert a struct afs_info to an osl object.
181 *
182 * \param afsi Pointer to the audio file info to be converted.
183 * \param obj Result pointer.
184 *
185 * \sa load_afsi().
186 */
187 static void save_afsi(struct afs_info *afsi, struct osl_object *obj)
188 {
189 char *buf = obj->data;
190
191 write_u64(buf + AFSI_LAST_PLAYED_OFFSET, afsi->last_played);
192 write_u64(buf + AFSI_ATTRIBUTES_OFFSET, afsi->attributes);
193 write_u32(buf + AFSI_NUM_PLAYED_OFFSET, afsi->num_played);
194 write_u32(buf + AFSI_IMAGE_ID_OFFSET, afsi->image_id);
195 write_u32(buf + AFSI_LYRICS_ID_OFFSET, afsi->lyrics_id);
196 write_u8(buf + AFSI_AUDIO_FORMAT_ID_OFFSET,
197 afsi->audio_format_id);
198 write_u8(buf + AFSI_AMP_OFFSET, afsi->amp);
199 memset(buf + AFSI_AUDIO_FORMAT_UNUSED_OFFSET, 0, 2);
200 }
201
202 /*
203 * Get the audio file selector info struct stored in an osl object.
204 *
205 * \param afsi Points to the audio_file info structure to be filled in.
206 * \param obj The osl object holding the data.
207 *
208 * \return Standard.
209 *
210 * \sa save_afsi().
211 */
212 static int load_afsi(struct afs_info *afsi, struct osl_object *obj)
213 {
214 char *buf = obj->data;
215 if (obj->size < AFSI_SIZE)
216 return -E_BAD_AFSI;
217 afsi->last_played = read_u64(buf + AFSI_LAST_PLAYED_OFFSET);
218 afsi->attributes = read_u64(buf + AFSI_ATTRIBUTES_OFFSET);
219 afsi->num_played = read_u32(buf + AFSI_NUM_PLAYED_OFFSET);
220 afsi->image_id = read_u32(buf + AFSI_IMAGE_ID_OFFSET);
221 afsi->lyrics_id = read_u32(buf + AFSI_LYRICS_ID_OFFSET);
222 afsi->audio_format_id = read_u8(buf +
223 AFSI_AUDIO_FORMAT_ID_OFFSET);
224 afsi->amp = read_u8(buf + AFSI_AMP_OFFSET);
225 return 1;
226 }
227
228 /** The columns of the audio file table. */
229 enum audio_file_table_columns {
230 /** The hash on the content of the audio file. */
231 AFTCOL_HASH,
232 /** The full path in the filesystem. */
233 AFTCOL_PATH,
234 /** The audio file selector info. */
235 AFTCOL_AFSI,
236 /** The audio format handler info. */
237 AFTCOL_AFHI,
238 /** The chunk table info and the chunk table of the audio file. */
239 AFTCOL_CHUNKS,
240 /** The number of columns of this table. */
241 NUM_AFT_COLUMNS
242 };
243
244 /**
245 * Compare two osl objects pointing to hash values.
246 *
247 * \param obj1 Pointer to the first hash object.
248 * \param obj2 Pointer to the second hash object.
249 *
250 * \return The values required for an osl compare function.
251 *
252 * \sa osl_compare_func, uint32_compare().
253 */
254 static int aft_hash_compare(const struct osl_object *obj1, const struct osl_object *obj2)
255 {
256 return hash_compare((unsigned char *)obj1->data, (unsigned char *)obj2->data);
257 }
258
259 static struct osl_column_description aft_cols[] = {
260 [AFTCOL_HASH] = {
261 .storage_type = OSL_MAPPED_STORAGE,
262 .storage_flags = OSL_RBTREE | OSL_FIXED_SIZE | OSL_UNIQUE,
263 .name = "hash",
264 .compare_function = aft_hash_compare,
265 .data_size = HASH_SIZE
266 },
267 [AFTCOL_PATH] = {
268 .storage_type = OSL_MAPPED_STORAGE,
269 .storage_flags = OSL_RBTREE | OSL_UNIQUE,
270 .name = "path",
271 .compare_function = string_compare,
272 },
273 [AFTCOL_AFSI] = {
274 .storage_type = OSL_MAPPED_STORAGE,
275 .storage_flags = OSL_FIXED_SIZE,
276 .name = "afs_info",
277 .data_size = AFSI_SIZE
278 },
279 [AFTCOL_AFHI] = {
280 .storage_type = OSL_MAPPED_STORAGE,
281 .name = "afh_info",
282 },
283 [AFTCOL_CHUNKS] = {
284 .storage_type = OSL_DISK_STORAGE,
285 .name = "chunks",
286 }
287 };
288
289 static struct osl_table_description audio_file_table_desc = {
290 .name = "audio_files",
291 .num_columns = NUM_AFT_COLUMNS,
292 .flags = OSL_LARGE_TABLE,
293 .column_descriptions = aft_cols
294 };
295
296 /* We don't want dot or dot-dot anywhere. */
297 static int verify_dotfile(const char *rest)
298 {
299 /*
300 * The first character was '.', but that has already been discarded, we
301 * now test the rest.
302 */
303 switch (*rest) {
304 case '\0': case '/': /* /foo/. and /foo/./bar are not ok */
305 return -1;
306 case '.': /* path start with /foo/.. */
307 if (rest[1] == '\0' || rest[1] == '/')
308 return -1; /* /foo/.. or /foo/../bar are not ok */
309 /* /foo/..bar is ok */
310 }
311 return 1;
312 }
313
314 /*
315 * We fundamentally don't like some paths: We don't want double slashes or
316 * slashes at the end that can make pathnames ambiguous.
317 */
318 static int verify_path(const char *orig_path, char **resolved_path)
319 {
320 char c;
321 size_t len;
322 char *path;
323
324 if (*orig_path != '/') /* we only accept absolute paths */
325 return -E_BAD_PATH;
326 len = strlen(orig_path);
327 *resolved_path = para_strdup(orig_path);
328 path = *resolved_path;
329 while (len > 1 && path[--len] == '/')
330 path[len] = '\0'; /* remove slash at the end */
331 c = *path++;
332 while (c) {
333 if (c == '/') {
334 c = *path++;
335 switch (c) {
336 case '/': /* double slash */
337 goto bad_path;
338 case '.':
339 if (verify_dotfile(path) < 0)
340 goto bad_path;
341 default:
342 continue;
343 }
344 }
345 c = *path++;
346 }
347 return 1;
348 bad_path:
349 free(*resolved_path);
350 return -E_BAD_PATH;
351 }
352
353 /** The on-disk layout of a afhi struct. */
354 enum afhi_offsets {
355 /** Where the number of seconds is stored. */
356 AFHI_SECONDS_TOTAL_OFFSET = 0,
357 /** Position of the bitrate. */
358 AFHI_BITRATE_OFFSET = 4,
359 /** Position of the frequency. */
360 AFHI_FREQUENCY_OFFSET = 8,
361 /** Was: Location of the audio file header. */
362 AFHI_UNUSED1_OFFSET = 12,
363 /* Length of the audio file header. Zero means: No header. */
364 AFHI_HEADER_LEN_OFFSET = 16,
365 /** The total number of chunks (4 bytes). */
366 CHUNKS_TOTAL_OFFSET = 20,
367 /** The length of the audio file header (4 bytes). */
368 HEADER_LEN_OFFSET = 24,
369 /** Was: The start of the audio file header (4 bytes). */
370 AFHI_UNUSED2_OFFSET = 28,
371 /** The seconds part of the chunk time (4 bytes). */
372 CHUNK_TV_TV_SEC_OFFSET = 32,
373 /** The microseconds part of the chunk time (4 bytes). */
374 CHUNK_TV_TV_USEC_OFFSET = 36,
375 /** Number of channels is stored here. (1 byte) */
376 AFHI_CHANNELS_OFFSET = 40,
377 /** The tag info position. */
378 AFHI_INFO_STRING_OFFSET = 41,
379 /** Minimal on-disk size of a valid afhi struct. */
380 MIN_AFHI_SIZE = 47, /* at least 6 null bytes for techinfo/tags */
381 };
382
383 static unsigned sizeof_afhi_buf(const struct afh_info *afhi)
384 {
385 if (!afhi)
386 return 0;
387 return MIN_AFHI_SIZE
388 + strlen(afhi->techinfo)
389 + strlen(afhi->tags.artist)
390 + strlen(afhi->tags.title)
391 + strlen(afhi->tags.year)
392 + strlen(afhi->tags.album)
393 + strlen(afhi->tags.comment);
394 }
395
396 static void save_afhi(struct afh_info *afhi, char *buf)
397 {
398 char *p;
399
400 if (!afhi)
401 return;
402 write_u32(buf + AFHI_SECONDS_TOTAL_OFFSET, afhi->seconds_total);
403 write_u32(buf + AFHI_BITRATE_OFFSET, afhi->bitrate);
404 write_u32(buf + AFHI_FREQUENCY_OFFSET, afhi->frequency);
405 write_u32(buf + AFHI_UNUSED1_OFFSET, 0);
406 write_u32(buf + AFHI_HEADER_LEN_OFFSET, afhi->header_len);
407 write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
408 write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
409 write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
410 write_u32(buf + AFHI_UNUSED2_OFFSET, 0);
411 write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
412 write_u32(buf + CHUNK_TV_TV_USEC_OFFSET, afhi->chunk_tv.tv_usec);
413 p = buf + AFHI_INFO_STRING_OFFSET;
414 /* The sprintf's below are OK as our caller made sure that buf is large enough */
415 p += sprintf(p, "%s", afhi->techinfo) + 1;
416 p += sprintf(p, "%s", afhi->tags.artist) + 1;
417 p += sprintf(p, "%s", afhi->tags.title) + 1;
418 p += sprintf(p, "%s", afhi->tags.year) + 1;
419 p += sprintf(p, "%s", afhi->tags.album) + 1;
420 sprintf(p, "%s", afhi->tags.comment);
421 }
422
423 static void load_afhi(const char *buf, struct afh_info *afhi)
424 {
425 afhi->seconds_total = read_u32(buf + AFHI_SECONDS_TOTAL_OFFSET);
426 afhi->bitrate = read_u32(buf + AFHI_BITRATE_OFFSET);
427 afhi->frequency = read_u32(buf + AFHI_FREQUENCY_OFFSET);
428 afhi->header_len = read_u32(buf + AFHI_HEADER_LEN_OFFSET);
429 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
430 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
431 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
432 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
433 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC_OFFSET);
434 afhi->techinfo = (char *)buf + AFHI_INFO_STRING_OFFSET;
435 afhi->tags.artist = afhi->techinfo + strlen(afhi->techinfo) + 1;
436 afhi->tags.title = afhi->tags.artist + strlen(afhi->tags.artist) + 1;
437 afhi->tags.year = afhi->tags.title + strlen(afhi->tags.title) + 1;
438 afhi->tags.album = afhi->tags.year + strlen(afhi->tags.year) + 1;
439 afhi->tags.comment = afhi->tags.album + strlen(afhi->tags.album) + 1;
440 }
441
442 static unsigned sizeof_chunk_table(struct afh_info *afhi)
443 {
444 if (!afhi)
445 return 0;
446 return 4 * (afhi->chunks_total + 1);
447 }
448
449 static uint32_t save_chunk_table(struct afh_info *afhi, char *buf)
450 {
451 int i;
452 uint32_t max = 0, old = 0;
453
454 for (i = 0; i <= afhi->chunks_total; i++) {
455 uint32_t val = afhi->chunk_table[i];
456 write_u32(buf + 4 * i, val);
457 /*
458 * If the first chunk is the header, do not consider it for the
459 * calculation of the largest chunk size.
460 */
461 if (i == 0 || (i == 1 && afhi->header_len > 0)) {
462 old = val;
463 continue;
464 }
465 max = PARA_MAX(max, val - old);
466 old = val;
467 }
468 return max;
469 }
470
471 static void load_chunk_table(struct afh_info *afhi, char *buf)
472 {
473 int i;
474
475 afhi->chunk_table = para_malloc(sizeof_chunk_table(afhi));
476 for (i = 0; i <= afhi->chunks_total; i++)
477 afhi->chunk_table[i] = read_u32(buf + 4 * i);
478 }
479
480 /**
481 * Get the row of the audio file table corresponding to the given path.
482 *
483 * \param path The full path of the audio file.
484 * \param row Result pointer.
485 *
486 * \return Standard.
487 */
488 int aft_get_row_of_path(const char *path, struct osl_row **row)
489 {
490 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
491
492 return osl(osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row));
493 }
494
495 /**
496 * Get the row of the audio file table corresponding to the given hash value.
497 *
498 * \param hash The hash value of the desired audio file.
499 * \param row Result pointer.
500 *
501 * \return Standard.
502 */
503 static int aft_get_row_of_hash(unsigned char *hash, struct osl_row **row)
504 {
505 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
506 return osl(osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row));
507 }
508
509 /*
510 * Get the audio file selector info object of a row.
511 *
512 * \param row Pointer to a row in the audio file table.
513 * \param obj Result pointer.
514 *
515 * \return Standard.
516 */
517 static int get_afsi_object_of_row(const struct osl_row *row,
518 struct osl_object *obj)
519 {
520 return osl(osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj));
521 }
522
523 /**
524 * Get the osl object holding the audio file selector info, given a path.
525 *
526 *
527 * \param path The full path of the audio file.
528 * \param obj Result pointer.
529 *
530 * \return Positive on success, negative on errors.
531 */
532 static int get_afsi_object_of_path(const char *path, struct osl_object *obj)
533 {
534 struct osl_row *row;
535 int ret = aft_get_row_of_path(path, &row);
536 if (ret < 0)
537 return ret;
538 return get_afsi_object_of_row(row, obj);
539 }
540
541 /**
542 * Get the audio file selector info, given a row of the audio file table.
543 *
544 * \param row Pointer to a row in the audio file table.
545 * \param afsi Result pointer.
546 *
547 * \return Positive on success, negative on errors.
548 */
549 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
550 {
551 struct osl_object obj;
552 int ret = get_afsi_object_of_row(row, &obj);
553 if (ret < 0)
554 return ret;
555 return load_afsi(afsi, &obj);
556 }
557
558 /*
559 * Get the audio file selector info, given the path of an audio table.
560 *
561 * \param path The full path of the audio file.
562 * \param afsi Result pointer.
563 *
564 * \return Standard.
565 */
566 static int get_afsi_of_path(const char *path, struct afs_info *afsi)
567 {
568 struct osl_object obj;
569 int ret = get_afsi_object_of_path(path, &obj);
570 if (ret < 0)
571 return ret;
572 return load_afsi(afsi, &obj);
573 }
574
575 /**
576 * Get the path of an audio file, given a row of the audio file table.
577 *
578 * \param row Pointer to a row in the audio file table.
579 * \param path Result pointer.
580 *
581 * The result is a pointer to mmapped data. The caller must not attempt
582 * to free it.
583 *
584 * \return Standard.
585 */
586 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
587 {
588 struct osl_object path_obj;
589 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_PATH,
590 &path_obj));
591 if (ret < 0)
592 return ret;
593 *path = path_obj.data;
594 return 1;
595 }
596
597 /**
598 * Get the object containing the hash value of an audio file, given a row.
599 *
600 * \param row Pointer to a row of the audio file table.
601 * \param obj Result pointer.
602 *
603 * \return The return value of the underlying call to osl_get_object().
604 *
605 * \sa get_hash_of_row().
606 */
607 static int get_hash_object_of_aft_row(const struct osl_row *row,
608 struct osl_object *obj)
609 {
610 return osl(osl_get_object(audio_file_table, row, AFTCOL_HASH, obj));
611 }
612
613 /**
614 * Get the hash value of an audio file, given a row of the audio file table.
615 *
616 * \param row Pointer to a row of the audio file table.
617 * \param hash Result pointer.
618 *
619 * \a hash points to mapped data and must not be freed by the caller.
620 *
621 * \return The return value of the underlying call to
622 * get_hash_object_of_aft_row().
623 */
624 static int get_hash_of_row(const struct osl_row *row, unsigned char **hash)
625 {
626 struct osl_object obj;
627 int ret = get_hash_object_of_aft_row(row, &obj);
628
629 if (ret < 0)
630 return ret;
631 *hash = obj.data;
632 return 1;
633 }
634
635 /**
636 * Get the audio format handler info, given a row of the audio file table.
637 *
638 * \param row Pointer to a row of the audio file table.
639 * \param afhi Result pointer.
640 *
641 * \return The return value of the underlying call to osl_get_object().
642 *
643 * \sa get_chunk_table_of_row().
644 */
645 int get_afhi_of_row(const struct osl_row *row, struct afh_info *afhi)
646 {
647 struct osl_object obj;
648 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_AFHI,
649 &obj));
650 if (ret < 0)
651 return ret;
652 load_afhi(obj.data, afhi);
653 return 1;
654 }
655
656 /* returns shmid on success */
657 static int save_afd(struct audio_file_data *afd)
658 {
659 size_t size = sizeof(*afd) + sizeof_chunk_table(&afd->afhi);
660 int shmid, ret = shm_new(size);
661 void *shm_afd;
662 char *buf;
663
664 if (ret < 0)
665 return ret;
666 shmid = ret;
667 ret = shm_attach(shmid, ATTACH_RW, &shm_afd);
668 if (ret < 0)
669 goto err;
670 buf = shm_afd;
671 buf += sizeof(*afd);
672 afd->max_chunk_size = save_chunk_table(&afd->afhi, buf);
673 *(struct audio_file_data *)shm_afd = *afd;
674 shm_detach(shm_afd);
675 return shmid;
676 err:
677 shm_destroy(shmid);
678 return ret;
679 }
680
681 /**
682 * Extract a afd stored in a shared memory area.
683 *
684 * Attach the shared memory area given by \a shmid, load the audio file data
685 * stored therein and detach the area afterwards. Called by vss, after
686 * receiving a positive response to the request for the next audio file.
687 +
688 * \param shmid The identifier of the shared memory area containing the afd.
689 * \param afd Result pointer.
690 *
691 * \return Standard.
692 */
693 int load_afd(int shmid, struct audio_file_data *afd)
694 {
695 void *shm_afd;
696 char *buf;
697 int ret;
698
699 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
700 if (ret < 0)
701 return ret;
702 *afd = *(struct audio_file_data *)shm_afd;
703 buf = shm_afd;
704 buf += sizeof(*afd);
705 load_chunk_table(&afd->afhi, buf);
706 shm_detach(shm_afd);
707 return 1;
708 }
709
710 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
711 time_t current_time, enum ls_listing_mode lm)
712 {
713 struct tm t;
714
715 if (!localtime_r((time_t *)seconds, &t))
716 return -E_LOCALTIME;
717 if (lm == LS_MODE_MBOX) {
718 if (!strftime(buf, size, "%c", &t))
719 return -E_STRFTIME;
720 return 1;
721 }
722 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
723 if (!strftime(buf, size, "%b %e %k:%M", &t))
724 return -E_STRFTIME;
725 return 1;
726 }
727 if (!strftime(buf, size, "%b %e %Y", &t))
728 return -E_STRFTIME;
729 return 1;
730 }
731
732 /** Compute the number of (decimal) digits of a number. */
733 #define GET_NUM_DIGITS(x, num) { \
734 typeof((x)) _tmp = PARA_ABS(x); \
735 *num = 1; \
736 if ((_tmp)) \
737 while ((_tmp) > 9) { \
738 (_tmp) /= 10; \
739 (*num)++; \
740 } \
741 }
742
743 __a_const static short unsigned get_duration_width(int seconds)
744 {
745 short unsigned width;
746 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
747
748 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
749 return 4 + (mins > 9);
750 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
751 GET_NUM_DIGITS(hours, &width);
752 return width + 6;
753 }
754
755 static void get_duration_buf(int seconds, char *buf, struct ls_options *opts)
756 {
757 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
758 short unsigned max_width;
759
760 if (!hours) { /* m:ss or mm:ss */
761 max_width = opts->mode == LS_MODE_LONG?
762 opts->widths.duration_width : 4;
763 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
764 } else { /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
765 max_width = opts->mode == LS_MODE_LONG?
766 opts->widths.duration_width : 7;
767 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
768 seconds % 60);
769 }
770 }
771
772 static int write_attribute_items(struct para_buffer *b,
773 const char *att_bitmap, struct afs_info *afsi)
774 {
775 char *att_text;
776 int ret;
777
778 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_BITMAP, "%s\n", att_bitmap);
779 if (ret < 0)
780 return ret;
781 ret = get_attribute_text(&afsi->attributes, " ", &att_text);
782 if (ret < 0)
783 return ret;
784 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_TXT, "%s\n", att_text);
785 free(att_text);
786 return ret;
787 }
788
789 static int write_lyrics_items(struct para_buffer *b, struct afs_info *afsi)
790 {
791 char *lyrics_name;
792 int ret;
793
794 ret = WRITE_STATUS_ITEM(b, SI_LYRICS_ID, "%u\n", afsi->lyrics_id);
795 if (ret < 0)
796 return ret;
797 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
798 return WRITE_STATUS_ITEM(b, SI_LYRICS_NAME, "%s\n", lyrics_name?
799 lyrics_name : "(none)");
800 }
801
802 static int write_image_items(struct para_buffer *b, struct afs_info *afsi)
803 {
804 char *image_name;
805 int ret;
806
807 ret = WRITE_STATUS_ITEM(b, SI_IMAGE_ID, "%u\n", afsi->image_id);
808 if (ret < 0)
809 return ret;
810 img_get_name_by_id(afsi->image_id, &image_name);
811 return WRITE_STATUS_ITEM(b, SI_IMAGE_NAME, "%s\n", image_name?
812 image_name : "(none)");
813 }
814
815 static int write_filename_items(struct para_buffer *b, const char *path,
816 unsigned flags)
817 {
818 char *val;
819 int ret;
820
821 if (!(flags & LS_FLAG_FULL_PATH))
822 return WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", path);
823 ret = WRITE_STATUS_ITEM(b, SI_PATH, "%s\n", path);
824 if (ret < 0)
825 return ret;
826 val = para_basename(path);
827 ret = WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", val? val : "");
828 if (ret < 0)
829 return ret;
830 val = para_dirname(path);
831 ret = WRITE_STATUS_ITEM(b, SI_DIRECTORY, "%s\n", val? val : "");
832 free(val);
833 return ret;
834 }
835
836 static int print_chunk_table(struct ls_data *d, struct para_buffer *b)
837 {
838 struct osl_object chunk_table_obj;
839 struct osl_row *aft_row;
840 int ret, i;
841 char *buf;
842
843 ret = aft_get_row_of_hash(d->hash, &aft_row);
844 if (ret < 0)
845 return ret;
846 ret = osl(osl_open_disk_object(audio_file_table, aft_row,
847 AFTCOL_CHUNKS, &chunk_table_obj));
848 if (ret < 0)
849 return ret;
850 ret = para_printf(b, "%s\n"
851 "chunk_time: %lu:%lu\nchunk_offsets: ",
852 d->path,
853 (long unsigned) d->afhi.chunk_tv.tv_sec,
854 (long unsigned) d->afhi.chunk_tv.tv_usec
855 );
856 if (ret < 0)
857 goto out;
858 buf = chunk_table_obj.data;
859 for (i = 0; i <= d->afhi.chunks_total; i++) {
860 ret = para_printf(b, "%u ", (unsigned) read_u32(buf + 4 * i));
861 if (ret < 0)
862 goto out;
863 }
864 ret = para_printf(b, "\n");
865 out:
866 osl_close_disk_object(&chunk_table_obj);
867 return ret;
868 }
869
870 static int write_score(struct para_buffer *b, struct ls_data *d,
871 struct ls_options *opts)
872 {
873 if (!(opts->flags & LS_FLAG_ADMISSIBLE_ONLY)) /* no score*/
874 return 0;
875 return WRITE_STATUS_ITEM(b, SI_SCORE, "%li\n", d->score);
876 }
877
878 static int print_list_item(struct ls_data *d, struct ls_options *opts,
879 struct para_buffer *b, time_t current_time)
880 {
881 int ret;
882 char att_buf[65];
883 char last_played_time[30];
884 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
885 struct afs_info *afsi = &d->afsi;
886 struct afh_info *afhi = &d->afhi;
887 char asc_hash[2 * HASH_SIZE + 1];
888
889 if (opts->mode == LS_MODE_SHORT) {
890 ret = para_printf(b, "%s\n", d->path);
891 goto out;
892 }
893 if (opts->mode == LS_MODE_CHUNKS) {
894 ret = print_chunk_table(d, b);
895 goto out;
896 }
897 get_attribute_bitmap(&afsi->attributes, att_buf);
898 if (opts->flags & LS_FLAG_UNIXDATE)
899 sprintf(last_played_time, "%llu",
900 (long long unsigned)afsi->last_played);
901 else {
902 ret = get_local_time(&afsi->last_played, last_played_time,
903 sizeof(last_played_time), current_time, opts->mode);
904 if (ret < 0)
905 goto out;
906 }
907 get_duration_buf(afhi->seconds_total, duration_buf, opts);
908 if (opts->mode == LS_MODE_LONG) {
909 struct ls_widths *w = &opts->widths;
910 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY) {
911 ret = para_printf(b, "%*li ",
912 opts->widths.score_width, d->score);
913 if (ret < 0)
914 goto out;
915 }
916 ret = para_printf(b,
917 "%s " /* attributes */
918 "%*u " /* amp */
919 "%*d " /* image_id */
920 "%*d " /* lyrics_id */
921 "%*d " /* bitrate */
922 "%*s " /* audio format */
923 "%*d " /* frequency */
924 "%d " /* channels */
925 "%s " /* duration */
926 "%*d " /* num_played */
927 "%s " /* last_played */
928 "%s\n", /* path */
929 att_buf,
930 w->amp_width, afsi->amp,
931 w->image_id_width, afsi->image_id,
932 w->lyrics_id_width, afsi->lyrics_id,
933 w->bitrate_width, afhi->bitrate,
934 w->audio_format_width,
935 audio_format_name(afsi->audio_format_id),
936 w->frequency_width, afhi->frequency,
937 afhi->channels,
938 duration_buf,
939 w->num_played_width, afsi->num_played,
940 last_played_time,
941 d->path
942 );
943 goto out;
944 }
945 if (opts->mode == LS_MODE_MBOX) {
946 const char *bn = para_basename(d->path);
947 ret = para_printf(b,
948 "From foo@localhost %s\n"
949 "Received: from\nTo: bar\nFrom: a\n"
950 "Subject: %s\n\n",
951 last_played_time,
952 bn? bn : "?");
953 if (ret < 0)
954 goto out;
955 }
956 ret = write_filename_items(b, d->path, opts->flags);
957 if (ret < 0)
958 goto out;
959 ret = write_score(b, d, opts);
960 if (ret < 0)
961 goto out;
962 ret = write_attribute_items(b, att_buf, afsi);
963 if (ret < 0)
964 goto out;
965 ret = write_image_items(b, afsi);
966 if (ret < 0)
967 goto out;
968 ret = write_lyrics_items(b, afsi);
969 if (ret < 0)
970 goto out;
971 hash_to_asc(d->hash, asc_hash);
972 ret = WRITE_STATUS_ITEM(b, SI_HASH, "%s\n", asc_hash);
973 if (ret < 0)
974 goto out;
975 ret = WRITE_STATUS_ITEM(b, SI_BITRATE, "%dkbit/s\n", afhi->bitrate);
976 if (ret < 0)
977 goto out;
978 ret = WRITE_STATUS_ITEM(b, SI_FORMAT, "%s\n",
979 audio_format_name(afsi->audio_format_id));
980 if (ret < 0)
981 goto out;
982 ret = WRITE_STATUS_ITEM(b, SI_FREQUENCY, "%dHz\n", afhi->frequency);
983 if (ret < 0)
984 goto out;
985 ret = WRITE_STATUS_ITEM(b, SI_CHANNELS, "%d\n", afhi->channels);
986 if (ret < 0)
987 goto out;
988 ret = WRITE_STATUS_ITEM(b, SI_DURATION, "%s\n", duration_buf);
989 if (ret < 0)
990 goto out;
991 ret = WRITE_STATUS_ITEM(b, SI_SECONDS_TOTAL, "%lu\n",
992 afhi->seconds_total);
993 if (ret < 0)
994 goto out;
995 ret = WRITE_STATUS_ITEM(b, SI_LAST_PLAYED, "%s\n", last_played_time);
996 if (ret < 0)
997 goto out;
998 ret = WRITE_STATUS_ITEM(b, SI_NUM_PLAYED, "%d\n", afsi->num_played);
999 if (ret < 0)
1000 goto out;
1001 ret = WRITE_STATUS_ITEM(b, SI_AMPLIFICATION, "%u\n", afsi->amp);
1002 if (ret < 0)
1003 goto out;
1004 ret = WRITE_STATUS_ITEM(b, SI_CHUNK_TIME, "%lu\n",
1005 tv2ms(&afhi->chunk_tv));
1006 if (ret < 0)
1007 goto out;
1008 ret = WRITE_STATUS_ITEM(b, SI_NUM_CHUNKS, "%lu\n",
1009 afhi->chunks_total);
1010 if (ret < 0)
1011 goto out;
1012 ret = WRITE_STATUS_ITEM(b, SI_TECHINFO, "%s\n", afhi->techinfo);
1013 if (ret < 0)
1014 goto out;
1015 ret = WRITE_STATUS_ITEM(b, SI_ARTIST, "%s\n", afhi->tags.artist);
1016 if (ret < 0)
1017 goto out;
1018 ret = WRITE_STATUS_ITEM(b, SI_TITLE, "%s\n", afhi->tags.title);
1019 if (ret < 0)
1020 goto out;
1021 ret = WRITE_STATUS_ITEM(b, SI_YEAR, "%s\n", afhi->tags.year);
1022 if (ret < 0)
1023 goto out;
1024 ret = WRITE_STATUS_ITEM(b, SI_ALBUM, "%s\n", afhi->tags.album);
1025 if (ret < 0)
1026 goto out;
1027 ret = WRITE_STATUS_ITEM(b, SI_COMMENT, "%s\n", afhi->tags.comment);
1028 if (ret < 0)
1029 goto out;
1030 if (opts->mode == LS_MODE_MBOX) {
1031 struct osl_object lyrics_def;
1032 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
1033 if (lyrics_def.data) {
1034 ret = para_printf(b, "Lyrics:\n~~~~~~~\n%s",
1035 (char *)lyrics_def.data);
1036 osl_close_disk_object(&lyrics_def);
1037 }
1038 }
1039 out:
1040 return ret;
1041 }
1042
1043 static int make_status_items(struct audio_file_data *afd,
1044 struct afs_info *afsi, char *path, long score,
1045 unsigned char *hash)
1046 {
1047 struct ls_data d = {
1048 .afhi = afd->afhi,
1049 .afsi = *afsi,
1050 .path = path,
1051 .score = score,
1052 .hash = hash
1053 };
1054 struct ls_options opts = {
1055 .flags = LS_FLAG_FULL_PATH | LS_FLAG_ADMISSIBLE_ONLY,
1056 .mode = LS_MODE_VERBOSE,
1057 };
1058 struct para_buffer pb = {.max_size = shm_get_shmmax() - 1};
1059 time_t current_time;
1060 int ret;
1061
1062 time(&current_time);
1063 ret = print_list_item(&d, &opts, &pb, current_time);
1064 if (ret < 0)
1065 return ret;
1066 free(status_items);
1067 status_items = pb.buf;
1068 memset(&pb, 0, sizeof(pb));
1069 pb.max_size = shm_get_shmmax() - 1;
1070 pb.flags = PBF_SIZE_PREFIX;
1071 ret = print_list_item(&d, &opts, &pb, current_time);
1072 if (ret < 0) {
1073 free(status_items);
1074 status_items = NULL;
1075 return ret;
1076 }
1077 free(parser_friendly_status_items);
1078 parser_friendly_status_items = pb.buf;
1079 return 1;
1080 }
1081
1082 /**
1083 * Mmap the given audio file and update statistics.
1084 *
1085 * \param aft_row Determines the audio file to be opened and updated.
1086 * \param score The score of the audio file.
1087 * \param afd Result pointer.
1088 *
1089 * On success, the numplayed field of the audio file selector info is increased
1090 * and the lastplayed time is set to the current time. Finally, the score of
1091 * the audio file is updated.
1092 *
1093 * \return Positive shmid on success, negative on errors.
1094 */
1095 int open_and_update_audio_file(struct osl_row *aft_row, long score,
1096 struct audio_file_data *afd)
1097 {
1098 unsigned char *aft_hash, file_hash[HASH_SIZE];
1099 struct osl_object afsi_obj;
1100 struct afs_info old_afsi, new_afsi;
1101 int ret = get_hash_of_row(aft_row, &aft_hash);
1102 struct afsi_change_event_data aced;
1103 struct osl_object map, chunk_table_obj;
1104 char *path;
1105
1106 if (ret < 0)
1107 return ret;
1108 ret = get_audio_file_path_of_row(aft_row, &path);
1109 if (ret < 0)
1110 return ret;
1111 PARA_NOTICE_LOG("%s\n", path);
1112 ret = get_afsi_object_of_row(aft_row, &afsi_obj);
1113 if (ret < 0)
1114 return ret;
1115 ret = load_afsi(&old_afsi, &afsi_obj);
1116 if (ret < 0)
1117 return ret;
1118 ret = get_afhi_of_row(aft_row, &afd->afhi);
1119 if (ret < 0)
1120 return ret;
1121 afd->afhi.chunk_table = NULL;
1122 ret = osl(osl_open_disk_object(audio_file_table, aft_row,
1123 AFTCOL_CHUNKS, &chunk_table_obj));
1124 if (ret < 0)
1125 return ret;
1126 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &afd->fd);
1127 if (ret < 0)
1128 goto err;
1129 hash_function(map.data, map.size, file_hash);
1130 ret = hash_compare(file_hash, aft_hash);
1131 para_munmap(map.data, map.size);
1132 if (ret) {
1133 ret = -E_HASH_MISMATCH;
1134 goto err;
1135 }
1136 new_afsi = old_afsi;
1137 new_afsi.num_played++;
1138 new_afsi.last_played = time(NULL);
1139 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
1140
1141 afd->audio_format_id = old_afsi.audio_format_id;
1142 load_chunk_table(&afd->afhi, chunk_table_obj.data);
1143 ret = make_status_items(afd, &old_afsi, path, score, file_hash);
1144 if (ret < 0)
1145 goto err;
1146 aced.aft_row = aft_row;
1147 aced.old_afsi = &old_afsi;
1148 afs_event(AFSI_CHANGE, NULL, &aced);
1149 ret = save_afd(afd);
1150 err:
1151 free(afd->afhi.chunk_table);
1152 osl_close_disk_object(&chunk_table_obj);
1153 if (ret < 0)
1154 PARA_ERROR_LOG("%s: %s\n", path, para_strerror(-ret));
1155 return ret;
1156 }
1157
1158 static int ls_audio_format_compare(const void *a, const void *b)
1159 {
1160 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1161 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
1162 }
1163
1164 static int ls_duration_compare(const void *a, const void *b)
1165 {
1166 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1167 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
1168 }
1169
1170 static int ls_bitrate_compare(const void *a, const void *b)
1171 {
1172 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1173 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
1174 }
1175
1176 static int ls_lyrics_id_compare(const void *a, const void *b)
1177 {
1178 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1179 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
1180 }
1181
1182 static int ls_image_id_compare(const void *a, const void *b)
1183 {
1184 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1185 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
1186 }
1187
1188 static int ls_channels_compare(const void *a, const void *b)
1189 {
1190 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1191 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
1192 }
1193
1194 static int ls_frequency_compare(const void *a, const void *b)
1195 {
1196 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1197 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
1198 }
1199
1200 static int ls_num_played_compare(const void *a, const void *b)
1201 {
1202 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1203 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1204 }
1205
1206 static int ls_last_played_compare(const void *a, const void *b)
1207 {
1208 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1209 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1210 }
1211
1212 static int ls_score_compare(const void *a, const void *b)
1213 {
1214 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1215 return NUM_COMPARE(d1->score, d2->score);
1216 }
1217
1218 static int ls_path_compare(const void *a, const void *b)
1219 {
1220 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1221 return strcmp(d1->path, d2->path);
1222 }
1223
1224 static int sort_matching_paths(struct ls_options *options)
1225 {
1226 size_t nmemb = options->num_matching_paths;
1227 size_t size = sizeof(*options->data_ptr);
1228 int (*compar)(const void *, const void *);
1229 int i;
1230
1231 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1232 for (i = 0; i < nmemb; i++)
1233 options->data_ptr[i] = options->data + i;
1234
1235 /* In these cases the array is already sorted */
1236 if (options->sorting == LS_SORT_BY_PATH
1237 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1238 && (options->flags & LS_FLAG_FULL_PATH))
1239 return 1;
1240 if (options->sorting == LS_SORT_BY_SCORE &&
1241 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1242 return 1;
1243
1244 switch (options->sorting) {
1245 case LS_SORT_BY_PATH:
1246 compar = ls_path_compare; break;
1247 case LS_SORT_BY_SCORE:
1248 compar = ls_score_compare; break;
1249 case LS_SORT_BY_LAST_PLAYED:
1250 compar = ls_last_played_compare; break;
1251 case LS_SORT_BY_NUM_PLAYED:
1252 compar = ls_num_played_compare; break;
1253 case LS_SORT_BY_FREQUENCY:
1254 compar = ls_frequency_compare; break;
1255 case LS_SORT_BY_CHANNELS:
1256 compar = ls_channels_compare; break;
1257 case LS_SORT_BY_IMAGE_ID:
1258 compar = ls_image_id_compare; break;
1259 case LS_SORT_BY_LYRICS_ID:
1260 compar = ls_lyrics_id_compare; break;
1261 case LS_SORT_BY_BITRATE:
1262 compar = ls_bitrate_compare; break;
1263 case LS_SORT_BY_DURATION:
1264 compar = ls_duration_compare; break;
1265 case LS_SORT_BY_AUDIO_FORMAT:
1266 compar = ls_audio_format_compare; break;
1267 default:
1268 return -E_BAD_SORT;
1269 }
1270 qsort(options->data_ptr, nmemb, size, compar);
1271 return 1;
1272 }
1273
1274 /* row is either an aft_row or a row of the score table */
1275 /* TODO: Only compute widths if we need them */
1276 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1277 {
1278 int ret, i;
1279 struct ls_options *options = ls_opts;
1280 struct ls_data *d;
1281 struct ls_widths *w;
1282 unsigned short num_digits;
1283 unsigned tmp;
1284 struct osl_row *aft_row;
1285 long score;
1286 char *path;
1287
1288 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1289 ret = get_score_and_aft_row(row, &score, &aft_row);
1290 if (ret < 0)
1291 return ret;
1292 } else {
1293 aft_row = row;
1294 score = 0;
1295 }
1296 ret = get_audio_file_path_of_row(aft_row, &path);
1297 if (ret < 0)
1298 return ret;
1299 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1300 char *p = strrchr(path, '/');
1301 if (p)
1302 path = p + 1;
1303 }
1304 if (options->num_patterns) {
1305 for (i = 0; i < options->num_patterns; i++) {
1306 ret = fnmatch(options->patterns[i], path, 0);
1307 if (!ret)
1308 break;
1309 if (ret == FNM_NOMATCH)
1310 continue;
1311 return -E_FNMATCH;
1312 }
1313 if (i >= options->num_patterns) /* no match */
1314 return 1;
1315 }
1316 tmp = options->num_matching_paths++;
1317 if (options->num_matching_paths > options->array_size) {
1318 options->array_size++;
1319 options->array_size *= 2;
1320 options->data = para_realloc(options->data, options->array_size
1321 * sizeof(*options->data));
1322 }
1323 d = options->data + tmp;
1324 ret = get_afsi_of_row(aft_row, &d->afsi);
1325 if (ret < 0)
1326 return ret;
1327 ret = get_afhi_of_row(aft_row, &d->afhi);
1328 if (ret < 0)
1329 return ret;
1330 d->path = path;
1331 ret = get_hash_of_row(aft_row, &d->hash);
1332 if (ret < 0)
1333 goto err;
1334 w = &options->widths;
1335 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1336 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1337 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1338 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1339 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1340 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1341 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1342 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1343 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1344 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1345 /* get the number of chars to print this amount of time */
1346 num_digits = get_duration_width(d->afhi.seconds_total);
1347 w->duration_width = PARA_MAX(w->duration_width, num_digits);
1348 GET_NUM_DIGITS(d->afsi.amp, &num_digits);
1349 w->amp_width = PARA_MAX(w->amp_width, num_digits);
1350 num_digits = strlen(audio_format_name(d->afsi.audio_format_id));
1351 w->audio_format_width = PARA_MAX(w->audio_format_width, num_digits);
1352 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1353 GET_NUM_DIGITS(score, &num_digits);
1354 num_digits++; /* add one for the sign (space or "-") */
1355 w->score_width = PARA_MAX(w->score_width, num_digits);
1356 d->score = score;
1357 }
1358 return 1;
1359 err:
1360 return ret;
1361 }
1362
1363 static void com_ls_callback(int fd, const struct osl_object *query)
1364 {
1365 struct ls_options *opts = query->data;
1366 char *p, *pattern_start = (char *)query->data + sizeof(*opts);
1367 struct para_buffer b = {
1368 .max_size = shm_get_shmmax(),
1369 .flags = (opts->mode == LS_MODE_PARSER)? PBF_SIZE_PREFIX : 0,
1370 .max_size_handler = afs_max_size_handler,
1371 .private_data = &(struct afs_max_size_handler_data) {
1372 .fd = fd,
1373 .band = SBD_OUTPUT
1374 }
1375 };
1376 int i = 0, ret;
1377 time_t current_time;
1378
1379 if (opts->num_patterns) {
1380 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1381 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1382 opts->patterns[i] = p;
1383 p += strlen(p) + 1;
1384 }
1385 } else
1386 opts->patterns = NULL;
1387 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1388 ret = admissible_file_loop(opts, prepare_ls_row);
1389 else
1390 ret = osl(osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1391 prepare_ls_row));
1392 if (ret < 0)
1393 goto out;
1394 if (opts->num_matching_paths == 0) {
1395 if (opts->num_patterns > 0)
1396 para_printf(&b, "no matches\n");
1397 goto out;
1398 }
1399 ret = sort_matching_paths(opts);
1400 if (ret < 0)
1401 goto out;
1402 time(&current_time);
1403 if (opts->flags & LS_FLAG_REVERSE)
1404 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1405 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1406 if (ret < 0)
1407 goto out;
1408 }
1409 else
1410 for (i = 0; i < opts->num_matching_paths; i++) {
1411 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1412 if (ret < 0)
1413 goto out;
1414 }
1415 out:
1416 if (b.offset)
1417 pass_buffer_as_shm(fd, SBD_OUTPUT, b.buf, b.offset);
1418 free(b.buf);
1419 free(opts->data);
1420 free(opts->data_ptr);
1421 free(opts->patterns);
1422 }
1423
1424 /*
1425 * TODO: flags -h (sort by hash)
1426 */
1427 int com_ls(struct command_context *cc)
1428 {
1429 int i, ret;
1430 unsigned flags = 0;
1431 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1432 enum ls_listing_mode mode = LS_MODE_SHORT;
1433 struct ls_options opts = {.patterns = NULL};
1434 struct osl_object query = {.data = &opts, .size = sizeof(opts)};
1435
1436 for (i = 1; i < cc->argc; i++) {
1437 const char *arg = cc->argv[i];
1438 if (arg[0] != '-')
1439 break;
1440 if (!strcmp(arg, "--")) {
1441 i++;
1442 break;
1443 }
1444 if (!strncmp(arg, "-l", 2)) {
1445 if (!*(arg + 2)) {
1446 mode = LS_MODE_LONG;
1447 continue;
1448 }
1449 if (*(arg + 3))
1450 return -E_AFT_SYNTAX;
1451 switch(*(arg + 2)) {
1452 case 's':
1453 mode = LS_MODE_SHORT;
1454 continue;
1455 case 'l':
1456 mode = LS_MODE_LONG;
1457 continue;
1458 case 'v':
1459 mode = LS_MODE_VERBOSE;
1460 continue;
1461 case 'm':
1462 mode = LS_MODE_MBOX;
1463 continue;
1464 case 'c':
1465 mode = LS_MODE_CHUNKS;
1466 continue;
1467 case 'p':
1468 mode = LS_MODE_PARSER;
1469 continue;
1470 default:
1471 return -E_AFT_SYNTAX;
1472 }
1473 }
1474 if (!strcmp(arg, "-p")) {
1475 flags |= LS_FLAG_FULL_PATH;
1476 continue;
1477 }
1478 if (!strcmp(arg, "-a")) {
1479 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1480 continue;
1481 }
1482 if (!strcmp(arg, "-r")) {
1483 flags |= LS_FLAG_REVERSE;
1484 continue;
1485 }
1486 if (!strcmp(arg, "-d")) {
1487 flags |= LS_FLAG_UNIXDATE;
1488 continue;
1489 }
1490 if (!strncmp(arg, "-s", 2)) {
1491 if (!*(arg + 2) || *(arg + 3))
1492 return -E_AFT_SYNTAX;
1493 switch(*(arg + 2)) {
1494 case 'p':
1495 sort = LS_SORT_BY_PATH;
1496 continue;
1497 case 's': /* -ss implies -a */
1498 sort = LS_SORT_BY_SCORE;
1499 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1500 continue;
1501 case 'l':
1502 sort = LS_SORT_BY_LAST_PLAYED;
1503 continue;
1504 case 'n':
1505 sort = LS_SORT_BY_NUM_PLAYED;
1506 continue;
1507 case 'f':
1508 sort = LS_SORT_BY_FREQUENCY;
1509 continue;
1510 case 'c':
1511 sort = LS_SORT_BY_CHANNELS;
1512 continue;
1513 case 'i':
1514 sort = LS_SORT_BY_IMAGE_ID;
1515 continue;
1516 case 'y':
1517 sort = LS_SORT_BY_LYRICS_ID;
1518 continue;
1519 case 'b':
1520 sort = LS_SORT_BY_BITRATE;
1521 continue;
1522 case 'd':
1523 sort = LS_SORT_BY_DURATION;
1524 continue;
1525 case 'a':
1526 sort = LS_SORT_BY_AUDIO_FORMAT;
1527 continue;
1528 default:
1529 return -E_AFT_SYNTAX;
1530 }
1531 }
1532 return -E_AFT_SYNTAX;
1533 }
1534 opts.flags = flags;
1535 opts.sorting = sort;
1536 opts.mode = mode;
1537 opts.num_patterns = cc->argc - i;
1538 ret = send_option_arg_callback_request(&query, opts.num_patterns,
1539 cc->argv + i, com_ls_callback, afs_cb_result_handler, cc);
1540 return ret;
1541 }
1542
1543 /**
1544 * Call the given function for each file in the audio file table.
1545 *
1546 * \param private_data An arbitrary data pointer, passed to \a func.
1547 * \param func The custom function to be called.
1548 *
1549 * \return Standard.
1550 */
1551 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1552 {
1553 return osl(osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1554 func));
1555 }
1556
1557 static struct osl_row *find_hash_sister(unsigned char *hash)
1558 {
1559 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
1560 struct osl_row *row;
1561
1562 osl_get_row(audio_file_table, AFTCOL_HASH, &obj, &row);
1563 return row;
1564 }
1565
1566 /** The format of the data stored by save_audio_file_data(). */
1567 enum com_add_buffer_offsets {
1568 /** afhi (if present) starts here. */
1569 CAB_AFHI_OFFSET_POS = 0,
1570 /** Start of the chunk table (if present). */
1571 CAB_CHUNKS_OFFSET_POS = 2,
1572 /** Audio format id. */
1573 CAB_AUDIO_FORMAT_OFFSET = 4,
1574 /** Flags given to the add command. */
1575 CAB_FLAGS_OFFSET = 5,
1576 /** The hash of the audio file being added. */
1577 CAB_HASH_OFFSET = 9,
1578 /** Start of the path of the audio file. */
1579 CAB_PATH_OFFSET = (CAB_HASH_OFFSET + HASH_SIZE),
1580 };
1581
1582 /*
1583 * Store the given data to a single buffer. Doesn't need the audio file selector
1584 * info struct as the server knows it as well.
1585 *
1586 * It's OK to call this with afhi == NULL. In this case, the audio format
1587 * handler info won't be stored in the buffer.
1588 */
1589 static void save_add_callback_buffer(unsigned char *hash, const char *path,
1590 struct afh_info *afhi, uint32_t flags,
1591 uint8_t audio_format_num, struct osl_object *obj)
1592 {
1593 size_t path_len = strlen(path) + 1;
1594 size_t afhi_size = sizeof_afhi_buf(afhi);
1595 size_t size = CAB_PATH_OFFSET + path_len + afhi_size
1596 + sizeof_chunk_table(afhi);
1597 char *buf = para_malloc(size);
1598 uint16_t pos;
1599
1600 write_u8(buf + CAB_AUDIO_FORMAT_OFFSET, audio_format_num);
1601 write_u32(buf + CAB_FLAGS_OFFSET, flags);
1602
1603 memcpy(buf + CAB_HASH_OFFSET, hash, HASH_SIZE);
1604 strcpy(buf + CAB_PATH_OFFSET, path);
1605
1606 pos = CAB_PATH_OFFSET + path_len;
1607 PARA_DEBUG_LOG("size: %zu, afhi starts at %d\n", size, pos);
1608 PARA_DEBUG_LOG("last afhi byte: %p, pos %zu\n", buf + pos + afhi_size - 1,
1609 pos + afhi_size - 1);
1610 write_u16(buf + CAB_AFHI_OFFSET_POS, pos);
1611 save_afhi(afhi, buf + pos);
1612
1613 pos += afhi_size;
1614 PARA_DEBUG_LOG("size: %zu, chunks start at %d\n", size, pos);
1615 write_u16(buf + CAB_CHUNKS_OFFSET_POS, pos);
1616 if (afhi)
1617 save_chunk_table(afhi, buf + pos);
1618 PARA_DEBUG_LOG("last byte in buf: %p\n", buf + size - 1);
1619 obj->data = buf;
1620 obj->size = size;
1621 }
1622
1623 /*
1624
1625 Overview of the add command.
1626
1627 Input: What was passed to the callback by the command handler.
1628 ~~~~~~
1629 HS: Hash sister. Whether an audio file with identical hash
1630 already exists in the osl database.
1631
1632 PB: Path brother. Whether a file with the given path exists
1633 in the table.
1634
1635 F: Force flag given. Whether add was called with -f.
1636
1637 output: Action performed by the callback.
1638 ~~~~~~~
1639 AFHI: Whether afhi and chunk table are computed and sent.
1640 ACTION: Table modifications to be done by the callback.
1641
1642 +----+----+---+------+---------------------------------------------------+
1643 | HS | PB | F | AFHI | ACTION
1644 +----+----+---+------+---------------------------------------------------+
1645 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1646 | | update path, keep afsi
1647 +----+----+---+------+---------------------------------------------------+
1648 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1649 | | otherwise: remove PB, HS: update path, keep afhi,
1650 | | afsi.
1651 +----+----+---+------+---------------------------------------------------+
1652 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1653 | | HS, keep afsi
1654 +----+----+---+------+---------------------------------------------------+
1655 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1656 +----+----+---+------+---------------------------------------------------+
1657 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1658 | | (force has no effect)
1659 +----+----+---+------+---------------------------------------------------+
1660 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1661 +----+----+---+------+---------------------------------------------------+
1662 | N | N | Y | Y | (new file) create new entry (force has no effect)
1663 +----+----+---+------+---------------------------------------------------+
1664 | N | N | N | Y | (new file) create new entry
1665 +----+----+---+------+---------------------------------------------------+
1666
1667 Notes:
1668
1669 afhi <=> force or no HS
1670 F => AFHI
1671
1672 */
1673
1674 /** Flags passed to the add command. */
1675 enum com_add_flags {
1676 /** Skip paths that exist already. */
1677 ADD_FLAG_LAZY = 1,
1678 /** Force adding. */
1679 ADD_FLAG_FORCE = 2,
1680 /** Print what is being done. */
1681 ADD_FLAG_VERBOSE = 4,
1682 /** Try to add files with unknown suffixes. */
1683 ADD_FLAG_ALL = 8,
1684 };
1685
1686 static void com_add_callback(int fd, const struct osl_object *query)
1687 {
1688 char *buf = query->data, *path;
1689 struct osl_row *pb, *aft_row;
1690 struct osl_row *hs;
1691 struct osl_object objs[NUM_AFT_COLUMNS];
1692 unsigned char *hash;
1693 char asc[2 * HASH_SIZE + 1];
1694 int ret;
1695 char afsi_buf[AFSI_SIZE];
1696 uint32_t flags = read_u32(buf + CAB_FLAGS_OFFSET);
1697 struct afs_info default_afsi = {.last_played = 0};
1698 struct para_buffer msg = {
1699 .max_size = shm_get_shmmax(),
1700 .max_size_handler = afs_max_size_handler,
1701 .private_data = &(struct afs_max_size_handler_data) {
1702 .fd = fd,
1703 .band = SBD_OUTPUT
1704 }
1705 };
1706 uint16_t afhi_offset, chunks_offset;
1707
1708 hash = (unsigned char *)buf + CAB_HASH_OFFSET;
1709 hash_to_asc(hash, asc);
1710 objs[AFTCOL_HASH].data = buf + CAB_HASH_OFFSET;
1711 objs[AFTCOL_HASH].size = HASH_SIZE;
1712
1713 path = buf + CAB_PATH_OFFSET;
1714 objs[AFTCOL_PATH].data = path;
1715 objs[AFTCOL_PATH].size = strlen(path) + 1;
1716
1717 PARA_INFO_LOG("request to add %s\n", path);
1718 hs = find_hash_sister(hash);
1719 ret = aft_get_row_of_path(path, &pb);
1720 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1721 goto out;
1722 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1723 if (flags & ADD_FLAG_VERBOSE)
1724 ret = para_printf(&msg, "ignoring duplicate\n");
1725 else
1726 ret = 1;
1727 goto out;
1728 }
1729 if (hs && hs != pb) {
1730 struct osl_object obj;
1731 if (pb) { /* hs trumps pb, remove pb */
1732 if (flags & ADD_FLAG_VERBOSE) {
1733 ret = para_printf(&msg, "removing %s\n", path);
1734 if (ret < 0)
1735 goto out;
1736 }
1737 afs_event(AUDIO_FILE_REMOVE, &msg, pb);
1738 ret = osl(osl_del_row(audio_file_table, pb));
1739 if (ret < 0)
1740 goto out;
1741 pb = NULL;
1742 }
1743 /* file rename, update hs' path */
1744 if (flags & ADD_FLAG_VERBOSE) {
1745 ret = osl(osl_get_object(audio_file_table, hs,
1746 AFTCOL_PATH, &obj));
1747 if (ret < 0)
1748 goto out;
1749 ret = para_printf(&msg, "renamed from %s\n", (char *)obj.data);
1750 if (ret < 0)
1751 goto out;
1752 }
1753 ret = osl(osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1754 &objs[AFTCOL_PATH]));
1755 if (ret < 0)
1756 goto out;
1757 afs_event(AUDIO_FILE_RENAME, &msg, hs);
1758 if (!(flags & ADD_FLAG_FORCE))
1759 goto out;
1760 }
1761 /* no hs or force mode, child must have sent afhi */
1762 afhi_offset = read_u16(buf + CAB_AFHI_OFFSET_POS);
1763 chunks_offset = read_u16(buf + CAB_CHUNKS_OFFSET_POS);
1764
1765 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1766 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1767 ret = -E_NO_AFHI;
1768 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1769 goto out;
1770 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1771 objs[AFTCOL_CHUNKS].size = query->size - chunks_offset;
1772 if (pb && !hs) { /* update pb's hash */
1773 char old_asc[2 * HASH_SIZE + 1];
1774 unsigned char *old_hash;
1775 ret = get_hash_of_row(pb, &old_hash);
1776 if (ret < 0)
1777 goto out;
1778 hash_to_asc(old_hash, old_asc);
1779 if (flags & ADD_FLAG_VERBOSE) {
1780 ret = para_printf(&msg, "file change: %s -> %s\n",
1781 old_asc, asc);
1782 if (ret < 0)
1783 goto out;
1784 }
1785 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1786 &objs[AFTCOL_HASH]);
1787 if (ret < 0)
1788 goto out;
1789 }
1790 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1791 struct osl_row *row = pb? pb : hs;
1792 /* update afhi and chunk_table */
1793 if (flags & ADD_FLAG_VERBOSE) {
1794 ret = para_printf(&msg, "updating afhi and chunk table\n");
1795 if (ret < 0)
1796 goto out;
1797 }
1798 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1799 &objs[AFTCOL_AFHI]));
1800 if (ret < 0)
1801 goto out;
1802 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1803 &objs[AFTCOL_CHUNKS]));
1804 if (ret < 0)
1805 goto out;
1806 afs_event(AFHI_CHANGE, &msg, row);
1807 goto out;
1808 }
1809 /* new entry, use default afsi */
1810 if (flags & ADD_FLAG_VERBOSE) {
1811 ret = para_printf(&msg, "new file\n");
1812 if (ret < 0)
1813 goto out;
1814 }
1815 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1816 default_afsi.audio_format_id = read_u8(buf + CAB_AUDIO_FORMAT_OFFSET);
1817
1818 objs[AFTCOL_AFSI].data = &afsi_buf;
1819 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1820 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1821 ret = osl(osl_add_and_get_row(audio_file_table, objs, &aft_row));
1822 afs_event(AUDIO_FILE_ADD, &msg, aft_row);
1823 out:
1824 if (ret < 0)
1825 para_printf(&msg, "%s\n", para_strerror(-ret));
1826 if (msg.offset)
1827 pass_buffer_as_shm(fd, SBD_OUTPUT, msg.buf, msg.offset);
1828 free(msg.buf);
1829 }
1830
1831 /** Used by com_add(). */
1832 struct private_add_data {
1833 /** The pointer passed to the original command handler. */
1834 struct command_context *cc;
1835 /** The given add flags. */
1836 uint32_t flags;
1837 };
1838
1839 static void path_brother_callback(int fd, const struct osl_object *query)
1840 {
1841 char *path = query->data;
1842 struct osl_row *path_brother;
1843 int ret = aft_get_row_of_path(path, &path_brother);
1844 if (ret < 0)
1845 return;
1846 pass_buffer_as_shm(fd, SBD_OUTPUT, (char *)&path_brother,
1847 sizeof(path_brother));
1848 }
1849
1850 static void hash_sister_callback(int fd, const struct osl_object *query)
1851 {
1852 unsigned char *hash = query->data;
1853 struct osl_row *hash_sister;
1854
1855 hash_sister = find_hash_sister(hash);
1856 if (!hash_sister)
1857 return;
1858 pass_buffer_as_shm(fd, SBD_OUTPUT, (char *)&hash_sister,
1859 sizeof(hash_sister));
1860 }
1861
1862 static int get_row_pointer_from_result(struct osl_object *result,
1863 __a_unused uint8_t band, void *private)
1864 {
1865 struct osl_row **row = private;
1866 *row = *(struct osl_row **)(result->data);
1867 return 1;
1868 }
1869
1870 static int add_one_audio_file(const char *path, void *private_data)
1871 {
1872 int ret, send_ret = 1, fd;
1873 uint8_t format_num = -1;
1874 struct private_add_data *pad = private_data;
1875 struct afh_info afhi, *afhi_ptr = NULL;
1876 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1877 struct osl_object map, obj = {.data = NULL}, query;
1878 unsigned char hash[HASH_SIZE];
1879
1880 ret = guess_audio_format(path);
1881 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL))
1882 goto out_free;
1883 query.data = (char *)path;
1884 query.size = strlen(path) + 1;
1885 ret = send_callback_request(path_brother_callback, &query,
1886 get_row_pointer_from_result, &pb);
1887 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1888 goto out_free;
1889 ret = 1;
1890 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1891 if (pad->flags & ADD_FLAG_VERBOSE)
1892 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1893 "lazy-ignore: %s\n", path);
1894 goto out_free;
1895 }
1896 /* We still want to add this file. Compute its hash. */
1897 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &fd);
1898 if (ret < 0)
1899 goto out_free;
1900 hash_function(map.data, map.size, hash);
1901
1902 /* Check whether the database contains a file with the same hash. */
1903 query.data = hash;
1904 query.size = HASH_SIZE;
1905 ret = send_callback_request(hash_sister_callback, &query,
1906 get_row_pointer_from_result, &hs);
1907 if (ret < 0)
1908 goto out_unmap;
1909 /* Return success if we already know this file. */
1910 ret = 1;
1911 if (pb && hs && hs == pb && !(pad->flags & ADD_FLAG_FORCE)) {
1912 if (pad->flags & ADD_FLAG_VERBOSE)
1913 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1914 "%s exists, not forcing update\n", path);
1915 goto out_unmap;
1916 }
1917 /*
1918 * We won't recalculate the audio format info and the chunk table if
1919 * there is a hash sister and FORCE was not given.
1920 */
1921 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1922 ret = compute_afhi(path, map.data, map.size, fd, &afhi);
1923 if (ret < 0)
1924 goto out_unmap;
1925 format_num = ret;
1926 afhi_ptr = &afhi;
1927 }
1928 munmap(map.data, map.size);
1929 close(fd);
1930 if (pad->flags & ADD_FLAG_VERBOSE) {
1931 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1932 "adding %s\n", path);
1933 if (send_ret < 0)
1934 goto out_free;
1935 }
1936 save_add_callback_buffer(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1937 /* Ask afs to consider this entry for adding. */
1938 ret = send_callback_request(com_add_callback, &obj,
1939 afs_cb_result_handler, pad->cc);
1940 goto out_free;
1941
1942 out_unmap:
1943 close(fd);
1944 munmap(map.data, map.size);
1945 out_free:
1946 if (ret < 0 && send_ret >= 0)
1947 send_ret = send_sb_va(&pad->cc->scc, SBD_ERROR_LOG,
1948 "failed to add %s (%s)\n", path, para_strerror(-ret));
1949 free(obj.data);
1950 clear_afhi(afhi_ptr);
1951 /* Stop adding files only on send errors. */
1952 return send_ret;
1953 }
1954
1955 int com_add(struct command_context *cc)
1956 {
1957 int i, ret;
1958 struct private_add_data pad = {.cc = cc, .flags = 0};
1959 struct stat statbuf;
1960
1961 for (i = 1; i < cc->argc; i++) {
1962 const char *arg = cc->argv[i];
1963 if (arg[0] != '-')
1964 break;
1965 if (!strcmp(arg, "--")) {
1966 i++;
1967 break;
1968 }
1969 if (!strcmp(arg, "-a")) {
1970 pad.flags |= ADD_FLAG_ALL;
1971 continue;
1972 }
1973 if (!strcmp(arg, "-l")) {
1974 pad.flags |= ADD_FLAG_LAZY;
1975 continue;
1976 }
1977 if (!strcmp(arg, "-f")) {
1978 pad.flags |= ADD_FLAG_FORCE;
1979 continue;
1980 }
1981 if (!strcmp(arg, "-v")) {
1982 pad.flags |= ADD_FLAG_VERBOSE;
1983 continue;
1984 }
1985 }
1986 if (cc->argc <= i)
1987 return -E_AFT_SYNTAX;
1988 for (; i < cc->argc; i++) {
1989 char *path;
1990 ret = verify_path(cc->argv[i], &path);
1991 if (ret < 0) {
1992 ret = send_sb_va(&cc->scc, SBD_ERROR_LOG, "%s: %s\n",
1993 cc->argv[i], para_strerror(-ret));
1994 if (ret < 0)
1995 return ret;
1996 continue;
1997 }
1998 ret = stat(path, &statbuf);
1999 if (ret < 0) {
2000 ret = send_sb_va(&cc->scc, SBD_ERROR_LOG,
2001 "failed to stat %s (%s)\n", path,
2002 strerror(errno));
2003 free(path);
2004 if (ret < 0)
2005 return ret;
2006 continue;
2007 }
2008 if (S_ISDIR(statbuf.st_mode))
2009 ret = for_each_file_in_dir(path, add_one_audio_file,
2010 &pad);
2011 else
2012 ret = add_one_audio_file(path, &pad);
2013 if (ret < 0) {
2014 send_sb_va(&cc->scc, SBD_OUTPUT, "%s: %s\n", path,
2015 para_strerror(-ret));
2016 free(path);
2017 return ret;
2018 }
2019 free(path);
2020 }
2021 return 1;
2022 }
2023
2024 /**
2025 * Flags used by the touch command.
2026 *
2027 * \sa com_touch().
2028 */
2029 enum touch_flags {
2030 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
2031 TOUCH_FLAG_FNM_PATHNAME = 1,
2032 /** Activates verbose mode. */
2033 TOUCH_FLAG_VERBOSE = 2
2034 };
2035
2036 /** Options used by com_touch(). */
2037 struct com_touch_options {
2038 /** New num_played value. */
2039 int32_t num_played;
2040 /** New last played count. */
2041 int64_t last_played;
2042 /** New lyrics id. */
2043 int32_t lyrics_id;
2044 /** New image id. */
2045 int32_t image_id;
2046 /** New amplification value. */
2047 int32_t amp;
2048 /** Command line flags (see \ref touch_flags). */
2049 unsigned flags;
2050 };
2051
2052 /** Data passed to the action handler of com_touch(). */
2053 struct touch_action_data {
2054 /** Command line options (see \ref com_touch_options). */
2055 struct com_touch_options *cto;
2056 /** Message buffer. */
2057 struct para_buffer pb;
2058 };
2059
2060 static int touch_audio_file(__a_unused struct osl_table *table,
2061 struct osl_row *row, const char *name, void *data)
2062 {
2063 struct touch_action_data *tad = data;
2064 struct osl_object obj;
2065 struct afs_info old_afsi, new_afsi;
2066 int ret, no_options = tad->cto->num_played < 0 && tad->cto->last_played < 0 &&
2067 tad->cto->lyrics_id < 0 && tad->cto->image_id < 0 && tad->cto->amp < 0;
2068 struct afsi_change_event_data aced;
2069
2070 ret = get_afsi_object_of_row(row, &obj);
2071 if (ret < 0)
2072 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2073 ret = load_afsi(&old_afsi, &obj);
2074 if (ret < 0)
2075 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2076 new_afsi = old_afsi;
2077 if (no_options) {
2078 new_afsi.num_played++;
2079 new_afsi.last_played = time(NULL);
2080 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2081 ret = para_printf(&tad->pb, "%s: num_played = %u, "
2082 "last_played = now()\n", name,
2083 new_afsi.num_played);
2084 if (ret < 0)
2085 return ret;
2086 }
2087 } else {
2088 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2089 ret = para_printf(&tad->pb, "touching %s\n", name);
2090 if (ret < 0)
2091 return ret;
2092 }
2093 if (tad->cto->lyrics_id >= 0)
2094 new_afsi.lyrics_id = tad->cto->lyrics_id;
2095 if (tad->cto->image_id >= 0)
2096 new_afsi.image_id = tad->cto->image_id;
2097 if (tad->cto->num_played >= 0)
2098 new_afsi.num_played = tad->cto->num_played;
2099 if (tad->cto->last_played >= 0)
2100 new_afsi.last_played = tad->cto->last_played;
2101 if (tad->cto->amp >= 0)
2102 new_afsi.amp = tad->cto->amp;
2103 }
2104 save_afsi(&new_afsi, &obj); /* in-place update */
2105 aced.aft_row = row;
2106 aced.old_afsi = &old_afsi;
2107 afs_event(AFSI_CHANGE, &tad->pb, &aced);
2108 return 1;
2109 }
2110
2111 static void com_touch_callback(int fd, const struct osl_object *query)
2112 {
2113 struct touch_action_data tad = {.cto = query->data,
2114 .pb = {
2115 .max_size = shm_get_shmmax(),
2116 .private_data = &fd,
2117 .max_size_handler = afs_max_size_handler
2118 }
2119 };
2120 int ret, ret2 = 0;
2121 struct pattern_match_data pmd = {
2122 .table = audio_file_table,
2123 .loop_col_num = AFTCOL_HASH,
2124 .match_col_num = AFTCOL_PATH,
2125 .patterns = {.data = (char *)query->data + sizeof(*tad.cto),
2126 .size = query->size - sizeof(*tad.cto)},
2127 .data = &tad,
2128 .action = touch_audio_file
2129 };
2130 if (tad.cto->flags & TOUCH_FLAG_FNM_PATHNAME)
2131 pmd.fnmatch_flags |= FNM_PATHNAME;
2132 ret = for_each_matching_row(&pmd);
2133 if (ret < 0)
2134 ret2 = para_printf(&tad.pb, "%s\n", para_strerror(-ret));
2135 else if (pmd.num_matches == 0)
2136 ret2 = para_printf(&tad.pb, "no matches\n");
2137 if (ret2 >= 0 && tad.pb.offset)
2138 pass_buffer_as_shm(fd, SBD_OUTPUT, tad.pb.buf, tad.pb.offset);
2139 free(tad.pb.buf);
2140 }
2141
2142 int com_touch(struct command_context *cc)
2143 {
2144 struct com_touch_options cto = {
2145 .num_played = -1,
2146 .last_played = -1,
2147 .lyrics_id = -1,
2148 .image_id = -1,
2149 .amp = -1,
2150 };
2151 struct osl_object query = {.data = &cto, .size = sizeof(cto)};
2152 int i, ret;
2153
2154
2155 for (i = 1; i < cc->argc; i++) {
2156 const char *arg = cc->argv[i];
2157 if (arg[0] != '-')
2158 break;
2159 if (!strcmp(arg, "--")) {
2160 i++;
2161 break;
2162 }
2163 if (!strncmp(arg, "-n=", 3)) {
2164 ret = para_atoi32(arg + 3, &cto.num_played);
2165 if (ret < 0)
2166 return ret;
2167 continue;
2168 }
2169 if (!strncmp(arg, "-l=", 3)) {
2170 ret = para_atoi64(arg + 3, &cto.last_played);
2171 if (ret < 0)
2172 return ret;
2173 continue;
2174 }
2175 if (!strncmp(arg, "-y=", 3)) {
2176 ret = para_atoi32(arg + 3, &cto.lyrics_id);
2177 if (ret < 0)
2178 return ret;
2179 continue;
2180 }
2181 if (!strncmp(arg, "-i=", 3)) {
2182 ret = para_atoi32(arg + 3, &cto.image_id);
2183 if (ret < 0)
2184 return ret;
2185 continue;
2186 }
2187 if (!strncmp(arg, "-a=", 3)) {
2188 int32_t val;
2189 ret = para_atoi32(arg + 3, &val);
2190 if (ret < 0)
2191 return ret;
2192 if (val < 0 || val > 255)
2193 return -ERRNO_TO_PARA_ERROR(EINVAL);
2194 cto.amp = val;
2195 continue;
2196 }
2197 if (!strcmp(arg, "-p")) {
2198 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
2199 continue;
2200 }
2201 if (!strcmp(arg, "-v")) {
2202 cto.flags |= TOUCH_FLAG_VERBOSE;
2203 continue;
2204 }
2205 break; /* non-option starting with dash */
2206 }
2207 if (i >= cc->argc)
2208 return -E_AFT_SYNTAX;
2209 ret = send_option_arg_callback_request(&query, cc->argc - i,
2210 cc->argv + i, com_touch_callback, afs_cb_result_handler, cc);
2211 if (ret < 0)
2212 send_strerror(cc, -ret);
2213 return ret;
2214 }
2215
2216 /** Flags for com_rm(). */
2217 enum rm_flags {
2218 /** -v */
2219 RM_FLAG_VERBOSE = 1,
2220 /** -f */
2221 RM_FLAG_FORCE = 2,
2222 /** -p */
2223 RM_FLAG_FNM_PATHNAME = 4
2224 };
2225
2226 /** Data passed to the action handler of com_rm(). */
2227 struct com_rm_action_data {
2228 /** Command line flags ((see \ref rm_flags). */
2229 uint32_t flags;
2230 /** Message buffer. */
2231 struct para_buffer pb;
2232 };
2233
2234 static int remove_audio_file(__a_unused struct osl_table *table,
2235 struct osl_row *row, const char *name, void *data)
2236 {
2237 struct com_rm_action_data *crd = data;
2238 int ret;
2239
2240 if (crd->flags & RM_FLAG_VERBOSE) {
2241 ret = para_printf(&crd->pb, "removing %s\n", name);
2242 if (ret < 0)
2243 return ret;
2244 }
2245 afs_event(AUDIO_FILE_REMOVE, &crd->pb, row);
2246 ret = osl(osl_del_row(audio_file_table, row));
2247 if (ret < 0)
2248 para_printf(&crd->pb, "%s: %s\n", name, para_strerror(-ret));
2249 return ret;
2250 }
2251
2252 static void com_rm_callback(int fd, const struct osl_object *query)
2253 {
2254 struct com_rm_action_data crd = {.flags = *(uint32_t *)query->data,
2255 .pb = {
2256 .max_size = shm_get_shmmax(),
2257 .private_data = &fd,
2258 .max_size_handler = afs_max_size_handler
2259 }
2260 };
2261 int ret;
2262 struct pattern_match_data pmd = {
2263 .table = audio_file_table,
2264 .loop_col_num = AFTCOL_HASH,
2265 .match_col_num = AFTCOL_PATH,
2266 .patterns = {.data = (char *)query->data + sizeof(uint32_t),
2267 .size = query->size - sizeof(uint32_t)},
2268 .data = &crd,
2269 .action = remove_audio_file
2270 };
2271 if (crd.flags & RM_FLAG_FNM_PATHNAME)
2272 pmd.fnmatch_flags |= FNM_PATHNAME;
2273 ret = for_each_matching_row(&pmd);
2274 if (ret < 0) {
2275 para_printf(&crd.pb, "%s\n", para_strerror(-ret));
2276 return;
2277 }
2278 if ((pmd.num_matches == 0) && !(crd.flags & RM_FLAG_FORCE))
2279 ret = para_printf(&crd.pb, "no matches -- nothing removed\n");
2280 else if (crd.flags & RM_FLAG_VERBOSE) {
2281 ret = para_printf(&crd.pb, "removed %u files\n",
2282 pmd.num_matches);
2283 }
2284 if (ret >= 0 && crd.pb.offset)
2285 pass_buffer_as_shm(fd, SBD_OUTPUT, crd.pb.buf, crd.pb.offset);
2286 free(crd.pb.buf);
2287 }
2288
2289 /* TODO options: -r (recursive) */
2290 int com_rm(struct command_context *cc)
2291 {
2292 uint32_t flags = 0;
2293 struct osl_object query = {.data = &flags, .size = sizeof(flags)};
2294 int i, ret;
2295
2296 for (i = 1; i < cc->argc; i++) {
2297 const char *arg = cc->argv[i];
2298 if (arg[0] != '-')
2299 break;
2300 if (!strcmp(arg, "--")) {
2301 i++;
2302 break;
2303 }
2304 if (!strcmp(arg, "-f")) {
2305 flags |= RM_FLAG_FORCE;
2306 continue;
2307 }
2308 if (!strcmp(arg, "-p")) {
2309 flags |= RM_FLAG_FNM_PATHNAME;
2310 continue;
2311 }
2312 if (!strcmp(arg, "-v")) {
2313 flags |= RM_FLAG_VERBOSE;
2314 continue;
2315 }
2316 break;
2317 }
2318 if (i >= cc->argc)
2319 return -E_AFT_SYNTAX;
2320 ret = send_option_arg_callback_request(&query, cc->argc - i,
2321 cc->argv + i, com_rm_callback, afs_cb_result_handler, cc);
2322 if (ret < 0)
2323 send_strerror(cc, -ret);
2324 return ret;
2325 }
2326
2327 /**
2328 * Flags used by the cpsi command.
2329 *
2330 * \sa com_cpsi().
2331 */
2332 enum cpsi_flags {
2333 /** Whether the lyrics id should be copied. */
2334 CPSI_FLAG_COPY_LYRICS_ID = 1,
2335 /** Whether the image id should be copied. */
2336 CPSI_FLAG_COPY_IMAGE_ID = 2,
2337 /** Whether the lastplayed time should be copied. */
2338 CPSI_FLAG_COPY_LASTPLAYED = 4,
2339 /** Whether the numplayed count should be copied. */
2340 CPSI_FLAG_COPY_NUMPLAYED = 8,
2341 /** Whether the attributes should be copied. */
2342 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2343 /** Activates verbose mode. */
2344 CPSI_FLAG_VERBOSE = 32,
2345 };
2346
2347 /** Data passed to the action handler of com_cpsi(). */
2348 struct cpsi_action_data {
2349 /** command line flags (see \ref cpsi_flags). */
2350 unsigned flags;
2351 /** Message buffer. */
2352 struct para_buffer pb;
2353 /** Values are copied from here. */
2354 struct afs_info source_afsi;
2355 };
2356
2357 static int copy_selector_info(__a_unused struct osl_table *table,
2358 struct osl_row *row, const char *name, void *data)
2359 {
2360 struct cpsi_action_data *cad = data;
2361 struct osl_object target_afsi_obj;
2362 int ret;
2363 struct afs_info old_afsi, target_afsi;
2364 struct afsi_change_event_data aced;
2365
2366 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2367 if (ret < 0)
2368 return ret;
2369 load_afsi(&target_afsi, &target_afsi_obj);
2370 old_afsi = target_afsi;
2371 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2372 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2373 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2374 target_afsi.image_id = cad->source_afsi.image_id;
2375 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2376 target_afsi.last_played = cad->source_afsi.last_played;
2377 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2378 target_afsi.num_played = cad->source_afsi.num_played;
2379 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2380 target_afsi.attributes = cad->source_afsi.attributes;
2381 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2382 if (cad->flags & CPSI_FLAG_VERBOSE) {
2383 ret = para_printf(&cad->pb, "copied afsi to %s\n", name);
2384 if (ret < 0)
2385 return ret;
2386 }
2387 aced.aft_row = row;
2388 aced.old_afsi = &old_afsi;
2389 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2390 return 1;
2391 }
2392
2393 static void com_cpsi_callback(int fd, const struct osl_object *query)
2394 {
2395 struct cpsi_action_data cad = {
2396 .flags = *(unsigned *)query->data,
2397 .pb = {
2398 .max_size = shm_get_shmmax(),
2399 .private_data = &fd,
2400 .max_size_handler = afs_max_size_handler
2401 }
2402 };
2403 int ret;
2404 char *source_path = (char *)query->data + sizeof(cad.flags);
2405 struct pattern_match_data pmd = {
2406 .table = audio_file_table,
2407 .loop_col_num = AFTCOL_HASH,
2408 .match_col_num = AFTCOL_PATH,
2409 .patterns = {.data = source_path + strlen(source_path) + 1,
2410 .size = query->size - sizeof(cad.flags)
2411 - strlen(source_path) - 1},
2412 .data = &cad,
2413 .action = copy_selector_info
2414 };
2415
2416 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2417 if (ret < 0)
2418 goto out;
2419 ret = for_each_matching_row(&pmd);
2420 out:
2421 if (ret < 0)
2422 para_printf(&cad.pb, "%s\n", para_strerror(-ret));
2423 else if (pmd.num_matches > 0) {
2424 if (cad.flags & CPSI_FLAG_VERBOSE)
2425 para_printf(&cad.pb, "copied requested afsi from %s "
2426 "to %u files\n", source_path, pmd.num_matches);
2427 } else
2428 para_printf(&cad.pb, "no matches - nothing copied\n");
2429 if (cad.pb.offset)
2430 pass_buffer_as_shm(fd, SBD_OUTPUT, cad.pb.buf, cad.pb.offset);
2431 free(cad.pb.buf);
2432 }
2433
2434 int com_cpsi(struct command_context *cc)
2435 {
2436 unsigned flags = 0;
2437 int i, ret;
2438 struct osl_object options = {.data = &flags, .size = sizeof(flags)};
2439
2440 for (i = 1; i < cc->argc; i++) {
2441 const char *arg = cc->argv[i];
2442 if (arg[0] != '-')
2443 break;
2444 if (!strcmp(arg, "--")) {
2445 i++;
2446 break;
2447 }
2448 if (!strcmp(arg, "-y")) {
2449 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2450 continue;
2451 }
2452 if (!strcmp(arg, "-i")) {
2453 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2454 continue;
2455 }
2456 if (!strcmp(arg, "-l")) {
2457 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2458 continue;
2459 }
2460 if (!strcmp(arg, "-n")) {
2461 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2462 continue;
2463 }
2464 if (!strcmp(arg, "-a")) {
2465 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2466 continue;
2467 }
2468 if (!strcmp(arg, "-v")) {
2469 flags |= CPSI_FLAG_VERBOSE;
2470 continue;
2471 }
2472 break;
2473 }
2474 if (i + 1 >= cc->argc) /* need at least source file and pattern */
2475 return -E_AFT_SYNTAX;
2476 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2477 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2478 ret = send_option_arg_callback_request(&options, cc->argc - i,
2479 cc->argv + i, com_cpsi_callback, afs_cb_result_handler, cc);
2480 if (ret < 0)
2481 send_strerror(cc, -ret);
2482 return ret;
2483 }
2484
2485 struct change_atts_data {
2486 uint64_t add_mask, del_mask;
2487 struct para_buffer pb;
2488 };
2489
2490 static int change_atts(__a_unused struct osl_table *table,
2491 struct osl_row *row, __a_unused const char *name, void *data)
2492 {
2493 int ret;
2494 struct osl_object obj;
2495 struct afs_info old_afsi, new_afsi;
2496 struct afsi_change_event_data aced = {
2497 .aft_row = row,
2498 .old_afsi = &old_afsi
2499 };
2500 struct change_atts_data *cad = data;
2501
2502 ret = get_afsi_object_of_row(row, &obj);
2503 if (ret < 0)
2504 return ret;
2505 ret = load_afsi(&old_afsi, &obj);
2506 if (ret < 0)
2507 return ret;
2508 new_afsi = old_afsi;
2509 new_afsi.attributes |= cad->add_mask;
2510 new_afsi.attributes &= ~cad->del_mask;
2511 save_afsi(&new_afsi, &obj); /* in-place update */
2512 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2513 return 1;
2514 }
2515
2516 static void com_setatt_callback(int fd, const struct osl_object *query)
2517 {
2518 char *p;
2519 int ret;
2520 size_t len;
2521 struct change_atts_data cad = {
2522 .pb = {
2523 .max_size = shm_get_shmmax(),
2524 .max_size_handler = afs_max_size_handler,
2525 .private_data = &(struct afs_max_size_handler_data) {
2526 .fd = fd,
2527 .band = SBD_OUTPUT
2528 }
2529 }
2530 };
2531 struct pattern_match_data pmd = {
2532 .table = audio_file_table,
2533 .loop_col_num = AFTCOL_HASH,
2534 .match_col_num = AFTCOL_PATH,
2535 .pm_flags = PM_SKIP_EMPTY_NAME,
2536 .data = &cad,
2537 .action = change_atts
2538 };
2539
2540 for (p = query->data; p < (char *)query->data + query->size; p += len + 1) {
2541 char c;
2542 unsigned char bitnum;
2543
2544 len = strlen(p);
2545 ret = -E_ATTR_SYNTAX;
2546 if (len == 0)
2547 goto out;
2548 c = p[len - 1];
2549 if (c != '+' && c != '-')
2550 break;
2551 p[len - 1] = '\0';
2552 ret = get_attribute_bitnum_by_name(p, &bitnum);
2553 if (ret < 0)
2554 goto out;
2555 if (c == '+')
2556 cad.add_mask |= (1UL << bitnum);
2557 else
2558 cad.del_mask |= (1UL << bitnum);
2559 }
2560 ret = -E_ATTR_SYNTAX;
2561 if (!cad.add_mask && !cad.del_mask)
2562 goto out;
2563 pmd.patterns.data = p;
2564 assert(p < (char *)query->data + query->size);
2565 pmd.patterns.size = (char *)query->data + query->size - p;
2566 ret = for_each_matching_row(&pmd);
2567 if (ret < 0)
2568 goto out;
2569 if (pmd.num_matches == 0)
2570 para_printf(&cad.pb, "no matches\n");
2571 out:
2572 if (ret < 0)
2573 para_printf(&cad.pb, "%s\n", para_strerror(-ret));
2574 if (cad.pb.offset)
2575 pass_buffer_as_shm(fd, SBD_OUTPUT, cad.pb.buf, cad.pb.offset);
2576 free(cad.pb.buf);
2577 }
2578
2579 int com_setatt(struct command_context *cc)
2580 {
2581 if (cc->argc < 3)
2582 return -E_ATTR_SYNTAX;
2583 return send_standard_callback_request(cc->argc - 1, cc->argv + 1,
2584 com_setatt_callback, afs_cb_result_handler, cc);
2585 }
2586
2587 static void afs_stat_callback(int fd, const struct osl_object *query)
2588 {
2589 int *parser_friendly = query->data;
2590 char *buf = *parser_friendly?
2591 parser_friendly_status_items : status_items;
2592
2593 if (!buf)
2594 return;
2595 pass_buffer_as_shm(fd, SBD_OUTPUT, buf, strlen(buf));
2596 }
2597
2598 /**
2599 * Get the current afs status items from the afs process and send it.
2600 *
2601 * \param cc The command context, used e.g. for data encryption.
2602 * \param parser_friendly Whether parser-friendly output format should be used.
2603 *
2604 * As the contents of the afs status items change in time and the command
2605 * handler only has a COW version created at fork time, it can not send
2606 * up-to-date afs status items directly. Therefore the usual callback mechanism
2607 * is used to pass the status items from the afs process to the command handler
2608 * via a shared memory area and a pipe.
2609 *
2610 * \return The return value of the underlying call to \ref send_callback_request().
2611 */
2612 int send_afs_status(struct command_context *cc, int parser_friendly)
2613 {
2614 struct osl_object query = {.data = &parser_friendly,
2615 .size = sizeof(parser_friendly)};
2616
2617 return send_callback_request(afs_stat_callback, &query,
2618 afs_cb_result_handler, cc);
2619 }
2620
2621 /* TODO: optionally fix problems by removing offending rows */
2622 static int check_audio_file(struct osl_row *row, void *data)
2623 {
2624 char *path;
2625 struct para_buffer *pb = data;
2626 struct stat statbuf;
2627 int ret = get_audio_file_path_of_row(row, &path);
2628 struct afs_info afsi;
2629 char *blob_name;
2630
2631 if (ret < 0)
2632 return para_printf(pb, "%s\n", para_strerror(-ret));
2633 if (stat(path, &statbuf) < 0) {
2634 ret = para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2635 if (ret < 0)
2636 return ret;
2637 } else {
2638 if (!S_ISREG(statbuf.st_mode)) {
2639 ret = para_printf(pb, "%s: not a regular file\n", path);
2640 if (ret < 0)
2641 return ret;
2642 }
2643 }
2644 ret = get_afsi_of_row(row, &afsi);
2645 if (ret < 0)
2646 return para_printf(pb, "%s: %s\n", path, para_strerror(-ret));
2647 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2648 if (ret < 0) {
2649 ret = para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2650 para_strerror(-ret));
2651 if (ret < 0)
2652 return ret;
2653 }
2654 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2655 if (ret < 0)
2656 ret = para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2657 para_strerror(-ret));
2658 return ret;
2659 }
2660
2661 /**
2662 * Check the audio file table for inconsistencies.
2663 *
2664 * \param fd The afs socket.
2665 * \param query Unused.
2666 *
2667 * This function always succeeds.
2668 *
2669 * \sa com_check().
2670 */
2671 void aft_check_callback(int fd, __a_unused const struct osl_object *query)
2672 {
2673 struct para_buffer pb = {
2674 .max_size = shm_get_shmmax(),
2675 .private_data = &(struct afs_max_size_handler_data) {
2676 .fd = fd,
2677 .band = SBD_OUTPUT
2678 },
2679 .max_size_handler = afs_max_size_handler
2680 };
2681 int ret = para_printf(&pb, "checking audio file table...\n");
2682
2683 if (ret < 0)
2684 return;
2685 audio_file_loop(&pb, check_audio_file);
2686 if (pb.offset)
2687 pass_buffer_as_shm(fd, SBD_OUTPUT, pb.buf, pb.offset);
2688 free(pb.buf);
2689 }
2690
2691 /**
2692 * Close the audio file table.
2693 *
2694 * \param flags Usual flags that are passed to osl_close_table().
2695 *
2696 * \sa osl_close_table().
2697 */
2698 static void aft_close(void)
2699 {
2700 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2701 audio_file_table = NULL;
2702 }
2703
2704 /**
2705 * Open the audio file table.
2706 *
2707 * \param dir The database directory.
2708 *
2709 * \return Standard.
2710 *
2711 * \sa osl_open_table().
2712 */
2713 static int aft_open(const char *dir)
2714 {
2715 int ret;
2716
2717 audio_file_table_desc.dir = dir;
2718 ret = osl(osl_open_table(&audio_file_table_desc, &audio_file_table));
2719 if (ret >= 0) {
2720 unsigned num;
2721 osl_get_num_rows(audio_file_table, &num);
2722 PARA_INFO_LOG("audio file table contains %d files\n", num);
2723 return ret;
2724 }
2725 PARA_INFO_LOG("failed to open audio file table\n");
2726 audio_file_table = NULL;
2727 if (ret >= 0 || ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_NOENT))
2728 return 1;
2729 return ret;
2730 }
2731
2732 static int aft_create(const char *dir)
2733 {
2734 audio_file_table_desc.dir = dir;
2735 return osl(osl_create_table(&audio_file_table_desc));
2736 }
2737
2738 static int clear_attribute(struct osl_row *row, void *data)
2739 {
2740 struct rmatt_event_data *red = data;
2741 struct afs_info afsi;
2742 struct osl_object obj;
2743 int ret = get_afsi_object_of_row(row, &obj);
2744 uint64_t mask = ~(1ULL << red->bitnum);
2745
2746 if (ret < 0)
2747 return ret;
2748 ret = load_afsi(&afsi, &obj);
2749 if (ret < 0)
2750 return ret;
2751 afsi.attributes &= mask;
2752 save_afsi(&afsi, &obj);
2753 return 1;
2754 }
2755
2756 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2757 void *data)
2758 {
2759 int ret;
2760
2761 switch (event) {
2762 case ATTRIBUTE_REMOVE: {
2763 const struct rmatt_event_data *red = data;
2764 ret = para_printf(pb, "clearing attribute %s (bit %u) from all "
2765 "entries in the audio file table\n", red->name,
2766 red->bitnum);
2767 if (ret < 0)
2768 return ret;
2769 return audio_file_loop(data, clear_attribute);
2770 }
2771 default:
2772 return 1;
2773 }
2774 }
2775
2776 /**
2777 * Initialize the audio file table.
2778 *
2779 * \param t Pointer to the structure to be initialized.
2780 */
2781 void aft_init(struct afs_table *t)
2782 {
2783 t->open = aft_open;
2784 t->close = aft_close;
2785 t->create = aft_create;
2786 t->event_handler = aft_event_handler;
2787 }