Compute the maximal chunk size only once.
[paraslash.git] / aft.c
1 /*
2 * Copyright (C) 2007-2010 Andre Noll <maan@systemlinux.org>
3 *
4 * Licensed under the GPL v2. For licencing details see COPYING.
5 */
6
7 /** \file aft.c Audio file table functions. */
8
9 #include <regex.h>
10 #include <dirent.h> /* readdir() */
11 #include <openssl/rc4.h>
12 #include <sys/mman.h>
13 #include <fnmatch.h>
14 #include <sys/shm.h>
15 #include <osl.h>
16
17 #include "para.h"
18 #include "error.h"
19 #include "crypt.h"
20 #include "string.h"
21 #include "afh.h"
22 #include "afs.h"
23 #include "net.h"
24 #include "fd.h"
25 #include "ipc.h"
26 #include "portable_io.h"
27
28 static struct osl_table *audio_file_table;
29 static char *status_items;
30 static char *parser_friendly_status_items;
31
32 /** The different sorting methods of the ls command. */
33 enum ls_sorting_method {
34 /** -sp (default) */
35 LS_SORT_BY_PATH,
36 /** -ss */
37 LS_SORT_BY_SCORE,
38 /** -sl */
39 LS_SORT_BY_LAST_PLAYED,
40 /** -sn */
41 LS_SORT_BY_NUM_PLAYED,
42 /** -sf */
43 LS_SORT_BY_FREQUENCY,
44 /** -sc */
45 LS_SORT_BY_CHANNELS,
46 /** -si */
47 LS_SORT_BY_IMAGE_ID,
48 /** -sy */
49 LS_SORT_BY_LYRICS_ID,
50 /** -sb */
51 LS_SORT_BY_BITRATE,
52 /** -sd */
53 LS_SORT_BY_DURATION,
54 /** -sa */
55 LS_SORT_BY_AUDIO_FORMAT,
56 /** -sh */
57 LS_SORT_BY_HASH,
58 };
59
60 /** The different listing modes of the ls command. */
61 enum ls_listing_mode {
62 /** Default listing mode. */
63 LS_MODE_SHORT,
64 /** -l or -ll */
65 LS_MODE_LONG,
66 /** -lv */
67 LS_MODE_VERBOSE,
68 /** -lm */
69 LS_MODE_MBOX,
70 /** -lc */
71 LS_MODE_CHUNKS,
72 /** -lp */
73 LS_MODE_PARSER,
74 };
75
76 /** The flags accepted by the ls command. */
77 enum ls_flags {
78 /** -p */
79 LS_FLAG_FULL_PATH = 1,
80 /** -a */
81 LS_FLAG_ADMISSIBLE_ONLY = 2,
82 /** -r */
83 LS_FLAG_REVERSE = 4,
84 /** -d */
85 LS_FLAG_UNIXDATE = 8,
86 };
87
88 /**
89 * The size of the individual output fields of the ls command.
90 *
91 * These depend on the actual content being listed. If, for instance only files
92 * with duration less than an hour are being listed, then the duration with is
93 * made smaller because then the duration is listed as mm:ss rather than
94 * hh:mm:ss.
95 */
96 struct ls_widths {
97 /** size of the score field. */
98 unsigned short score_width;
99 /** size of the image id field. */
100 unsigned short image_id_width;
101 /** size of the lyrics id field. */
102 unsigned short lyrics_id_width;
103 /** size of the bitrate field. */
104 unsigned short bitrate_width;
105 /** size of the frequency field. */
106 unsigned short frequency_width;
107 /** size of the duration field. */
108 unsigned short duration_width;
109 /** size of the num played field. */
110 unsigned short num_played_width;
111 /** size of the amp field. */
112 unsigned short amp_width;
113 };
114
115 /** Data passed from the ls command handler to its callback function. */
116 struct ls_options {
117 /** The given command line flags. */
118 unsigned flags;
119 /** The sorting method given at the command line. */
120 enum ls_sorting_method sorting;
121 /** The given listing mode (short, long, verbose, mbox). */
122 enum ls_listing_mode mode;
123 /** The arguments passed to the ls command. */
124 char **patterns;
125 /** Number of non-option arguments. */
126 int num_patterns;
127 /** Used for long listing mode to align the output fields. */
128 struct ls_widths widths;
129 /** Size of the \a data array. */
130 uint32_t array_size;
131 /** Number of used entries in the data array. */
132 uint32_t num_matching_paths;
133 /** Array of matching entries. */
134 struct ls_data *data;
135 /** Used to sort the array. */
136 struct ls_data **data_ptr;
137 };
138
139 /**
140 * Describes the layout of the mmapped-afs info struct.
141 *
142 * \sa struct afs_info.
143 */
144 enum afsi_offsets {
145 /** Where .last_played is stored. */
146 AFSI_LAST_PLAYED_OFFSET = 0,
147 /** Storage position of the attributes bitmap. */
148 AFSI_ATTRIBUTES_OFFSET = 8,
149 /** Storage position of the .num_played field. */
150 AFSI_NUM_PLAYED_OFFSET = 16,
151 /** Storage position of the .image_id field. */
152 AFSI_IMAGE_ID_OFFSET = 20,
153 /** Storage position of the .lyrics_id field. */
154 AFSI_LYRICS_ID_OFFSET = 24,
155 /** Storage position of the .audio_format_id field. */
156 AFSI_AUDIO_FORMAT_ID_OFFSET = 28,
157 /** Storage position of the amplification field. */
158 AFSI_AMP_OFFSET = 29,
159 /** 2 bytes reserved space for future usage. */
160 AFSI_AUDIO_FORMAT_UNUSED_OFFSET = 30,
161 /** On-disk storage space needed. */
162 AFSI_SIZE = 32
163 };
164
165 /**
166 * Convert a struct afs_info to an osl object.
167 *
168 * \param afsi Pointer to the audio file info to be converted.
169 * \param obj Result pointer.
170 *
171 * \sa load_afsi().
172 */
173 void save_afsi(struct afs_info *afsi, struct osl_object *obj)
174 {
175 char *buf = obj->data;
176
177 write_u64(buf + AFSI_LAST_PLAYED_OFFSET, afsi->last_played);
178 write_u64(buf + AFSI_ATTRIBUTES_OFFSET, afsi->attributes);
179 write_u32(buf + AFSI_NUM_PLAYED_OFFSET, afsi->num_played);
180 write_u32(buf + AFSI_IMAGE_ID_OFFSET, afsi->image_id);
181 write_u32(buf + AFSI_LYRICS_ID_OFFSET, afsi->lyrics_id);
182 write_u8(buf + AFSI_AUDIO_FORMAT_ID_OFFSET,
183 afsi->audio_format_id);
184 write_u8(buf + AFSI_AMP_OFFSET, afsi->amp);
185 memset(buf + AFSI_AUDIO_FORMAT_UNUSED_OFFSET, 0, 2);
186 }
187
188 /**
189 * Get the audio file selector info struct stored in an osl object.
190 *
191 * \param afsi Points to the audio_file info structure to be filled in.
192 * \param obj The osl object holding the data.
193 *
194 * \return Positive on success, negative on errors. Possible errors: \p E_BAD_AFS.
195 *
196 * \sa save_afsi().
197 */
198 int load_afsi(struct afs_info *afsi, struct osl_object *obj)
199 {
200 char *buf = obj->data;
201 if (obj->size < AFSI_SIZE)
202 return -E_BAD_AFSI;
203 afsi->last_played = read_u64(buf + AFSI_LAST_PLAYED_OFFSET);
204 afsi->attributes = read_u64(buf + AFSI_ATTRIBUTES_OFFSET);
205 afsi->num_played = read_u32(buf + AFSI_NUM_PLAYED_OFFSET);
206 afsi->image_id = read_u32(buf + AFSI_IMAGE_ID_OFFSET);
207 afsi->lyrics_id = read_u32(buf + AFSI_LYRICS_ID_OFFSET);
208 afsi->audio_format_id = read_u8(buf +
209 AFSI_AUDIO_FORMAT_ID_OFFSET);
210 afsi->amp = read_u8(buf + AFSI_AMP_OFFSET);
211 return 1;
212 }
213
214 /** The columns of the audio file table. */
215 enum audio_file_table_columns {
216 /** The hash on the content of the audio file. */
217 AFTCOL_HASH,
218 /** The full path in the filesystem. */
219 AFTCOL_PATH,
220 /** The audio file selector info. */
221 AFTCOL_AFSI,
222 /** The audio format handler info. */
223 AFTCOL_AFHI,
224 /** The chunk table info and the chunk table of the audio file. */
225 AFTCOL_CHUNKS,
226 /** The number of columns of this table. */
227 NUM_AFT_COLUMNS
228 };
229
230 /**
231 * Compare two osl objects pointing to hash values.
232 *
233 * \param obj1 Pointer to the first hash object.
234 * \param obj2 Pointer to the second hash object.
235 *
236 * \return The values required for an osl compare function.
237 *
238 * \sa osl_compare_func, uint32_compare().
239 */
240 static int aft_hash_compare(const struct osl_object *obj1, const struct osl_object *obj2)
241 {
242 return hash_compare((HASH_TYPE *)obj1->data, (HASH_TYPE *)obj2->data);
243 }
244
245 static struct osl_column_description aft_cols[] = {
246 [AFTCOL_HASH] = {
247 .storage_type = OSL_MAPPED_STORAGE,
248 .storage_flags = OSL_RBTREE | OSL_FIXED_SIZE | OSL_UNIQUE,
249 .name = "hash",
250 .compare_function = aft_hash_compare,
251 .data_size = HASH_SIZE
252 },
253 [AFTCOL_PATH] = {
254 .storage_type = OSL_MAPPED_STORAGE,
255 .storage_flags = OSL_RBTREE | OSL_UNIQUE,
256 .name = "path",
257 .compare_function = string_compare,
258 },
259 [AFTCOL_AFSI] = {
260 .storage_type = OSL_MAPPED_STORAGE,
261 .storage_flags = OSL_FIXED_SIZE,
262 .name = "afs_info",
263 .data_size = AFSI_SIZE
264 },
265 [AFTCOL_AFHI] = {
266 .storage_type = OSL_MAPPED_STORAGE,
267 .name = "afh_info",
268 },
269 [AFTCOL_CHUNKS] = {
270 .storage_type = OSL_DISK_STORAGE,
271 .name = "chunks",
272 }
273 };
274
275 static struct osl_table_description audio_file_table_desc = {
276 .name = "audio_files",
277 .num_columns = NUM_AFT_COLUMNS,
278 .flags = OSL_LARGE_TABLE,
279 .column_descriptions = aft_cols
280 };
281
282 /* We don't want * dot or dot-dot anywhere. */
283 static int verify_dotfile(const char *rest)
284 {
285 /*
286 * The first character was '.', but that has already been discarded, we
287 * now test the rest.
288 */
289 switch (*rest) {
290 case '\0': case '/': /* /foo/. and /foo/./bar are not ok */
291 return -1;
292 case '.': /* path start with /foo/.. */
293 if (rest[1] == '\0' || rest[1] == '/')
294 return -1; /* /foo/.. or /foo/../bar are not ok */
295 /* /foo/..bar is ok */
296 }
297 return 1;
298 }
299
300 /*
301 * We fundamentally don't like some paths: We don't want double slashes or
302 * slashes at the end that can make pathnames ambiguous.
303 */
304 static int verify_path(const char *orig_path, char **resolved_path)
305 {
306 char c;
307 size_t len;
308 char *path;
309
310 if (*orig_path != '/') /* we only accept absolute paths */
311 return -E_BAD_PATH;
312 len = strlen(orig_path);
313 *resolved_path = para_strdup(orig_path);
314 path = *resolved_path;
315 while (len > 1 && path[--len] == '/')
316 path[len] = '\0'; /* remove slash at the end */
317 c = *path++;
318 while (c) {
319 if (c == '/') {
320 c = *path++;
321 switch (c) {
322 case '/': /* double slash */
323 goto bad_path;
324 case '.':
325 if (verify_dotfile(path) < 0)
326 goto bad_path;
327 default:
328 continue;
329 }
330 }
331 c = *path++;
332 }
333 return 1;
334 bad_path:
335 free(*resolved_path);
336 return -E_BAD_PATH;
337 }
338
339 /** The on-disk layout of a afhi struct. */
340 enum afhi_offsets {
341 /** Where the number of seconds is stored. */
342 AFHI_SECONDS_TOTAL_OFFSET = 0,
343 /** Position of the bitrate. */
344 AFHI_BITRATE_OFFSET = 4,
345 /** Position of the frequency. */
346 AFHI_FREQUENCY_OFFSET = 8,
347 /** Location of the audio file header. */
348 AFHI_HEADER_OFFSET_OFFSET = 12,
349 /* Length of the audio file header. Zero means: No header. */
350 AFHI_HEADER_LEN_OFFSET = 16,
351 /** The total number of chunks (4 bytes). */
352 CHUNKS_TOTAL_OFFSET = 20,
353 /** The length of the audio file header (4 bytes). */
354 HEADER_LEN_OFFSET = 24,
355 /** The start of the audio file header (4 bytes). */
356 HEADER_OFFSET_OFFSET = 28,
357 /** The seconds part of the chunk time (4 bytes). */
358 CHUNK_TV_TV_SEC_OFFSET = 32,
359 /** The microseconds part of the chunk time (4 bytes). */
360 CHUNK_TV_TV_USEC_OFFSET = 36,
361 /** Number of channels is stored here. (1 byte) */
362 AFHI_CHANNELS_OFFSET = 40,
363 /** The tag info position. */
364 AFHI_INFO_STRING_OFFSET = 41,
365 /** Minimal on-disk size of a valid afhi struct. */
366 MIN_AFHI_SIZE = 47, /* at least 6 null bytes for techinfo/tags */
367 };
368
369 static unsigned sizeof_afhi_buf(const struct afh_info *afhi)
370 {
371 if (!afhi)
372 return 0;
373 return MIN_AFHI_SIZE
374 + strlen(afhi->techinfo)
375 + strlen(afhi->tags.artist)
376 + strlen(afhi->tags.title)
377 + strlen(afhi->tags.year)
378 + strlen(afhi->tags.album)
379 + strlen(afhi->tags.comment);
380 }
381
382 static void save_afhi(struct afh_info *afhi, char *buf)
383 {
384 char *p;
385
386 if (!afhi)
387 return;
388 write_u32(buf + AFHI_SECONDS_TOTAL_OFFSET, afhi->seconds_total);
389 write_u32(buf + AFHI_BITRATE_OFFSET, afhi->bitrate);
390 write_u32(buf + AFHI_FREQUENCY_OFFSET, afhi->frequency);
391 write_u32(buf + AFHI_HEADER_OFFSET_OFFSET, afhi->header_offset);
392 write_u32(buf + AFHI_HEADER_LEN_OFFSET, afhi->header_len);
393 write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
394 write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
395 write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
396 write_u32(buf + HEADER_OFFSET_OFFSET, afhi->header_offset);
397 write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
398 write_u32(buf + CHUNK_TV_TV_USEC_OFFSET, afhi->chunk_tv.tv_usec);
399 p = buf + AFHI_INFO_STRING_OFFSET;
400 /* The sprintf's below are OK as our caller made sure that buf is large enough */
401 p += sprintf(p, "%s", afhi->techinfo) + 1;
402 p += sprintf(p, "%s", afhi->tags.artist) + 1;
403 p += sprintf(p, "%s", afhi->tags.title) + 1;
404 p += sprintf(p, "%s", afhi->tags.year) + 1;
405 p += sprintf(p, "%s", afhi->tags.album) + 1;
406 sprintf(p, "%s", afhi->tags.comment);
407 }
408
409 static void load_afhi(const char *buf, struct afh_info *afhi)
410 {
411 afhi->seconds_total = read_u32(buf + AFHI_SECONDS_TOTAL_OFFSET);
412 afhi->bitrate = read_u32(buf + AFHI_BITRATE_OFFSET);
413 afhi->frequency = read_u32(buf + AFHI_FREQUENCY_OFFSET);
414 afhi->header_offset = read_u32(buf + AFHI_HEADER_OFFSET_OFFSET);
415 afhi->header_len = read_u32(buf + AFHI_HEADER_LEN_OFFSET);
416 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
417 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
418 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
419 afhi->header_offset = read_u32(buf + HEADER_OFFSET_OFFSET);
420 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
421 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC_OFFSET);
422 afhi->techinfo = (char *)buf + AFHI_INFO_STRING_OFFSET;
423 afhi->tags.artist = afhi->techinfo + strlen(afhi->techinfo) + 1;
424 afhi->tags.title = afhi->tags.artist + strlen(afhi->tags.artist) + 1;
425 afhi->tags.year = afhi->tags.title + strlen(afhi->tags.title) + 1;
426 afhi->tags.album = afhi->tags.year + strlen(afhi->tags.year) + 1;
427 afhi->tags.comment = afhi->tags.album + strlen(afhi->tags.album) + 1;
428 }
429
430 static unsigned sizeof_chunk_table(struct afh_info *afhi)
431 {
432 if (!afhi)
433 return 0;
434 return 4 * (afhi->chunks_total + 1);
435 }
436
437 static uint32_t save_chunk_table(struct afh_info *afhi, char *buf)
438 {
439 int i;
440 uint32_t max = 0, old = 0;
441
442 for (i = 0; i <= afhi->chunks_total; i++) {
443 uint32_t val = afhi->chunk_table[i];
444 write_u32(buf + 4 * i, val);
445 /*
446 * If the first chunk is the header, do not consider it for the
447 * calculation of the largest chunk size.
448 */
449 if (i == 0 || (i == 1 && afhi->header_len > 0)) {
450 old = val;
451 continue;
452 }
453 max = PARA_MAX(max, val - old);
454 old = val;
455 }
456 return max;
457 }
458
459 static void load_chunk_table(struct afh_info *afhi, char *buf)
460 {
461 int i;
462
463 afhi->chunk_table = para_malloc(sizeof_chunk_table(afhi));
464 for (i = 0; i <= afhi->chunks_total; i++)
465 afhi->chunk_table[i] = read_u32(buf + 4 * i);
466 }
467
468 /**
469 * Get the row of the audio file table corresponding to the given path.
470 *
471 * \param path The full path of the audio file.
472 * \param row Result pointer.
473 *
474 * \return Standard.
475 */
476 int aft_get_row_of_path(const char *path, struct osl_row **row)
477 {
478 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
479
480 return osl(osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row));
481 }
482
483 /**
484 * Get the row of the audio file table corresponding to the given hash value.
485 *
486 * \param hash The hash value of the desired audio file.
487 * \param row Result pointer.
488 *
489 * \return Standard.
490 */
491 static int aft_get_row_of_hash(HASH_TYPE *hash, struct osl_row **row)
492 {
493 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
494 return osl(osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row));
495 }
496
497 /**
498 * Get the osl object holding the audio file selector info of a row.
499 *
500 * \param row Pointer to a row in the audio file table.
501 * \param obj Result pointer.
502 *
503 * \return Standard.
504 */
505 int get_afsi_object_of_row(const struct osl_row *row, struct osl_object *obj)
506 {
507 return osl(osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj));
508 }
509
510 /**
511 * Get the osl object holding the audio file selector info, given a path.
512 *
513 *
514 * \param path The full path of the audio file.
515 * \param obj Result pointer.
516 *
517 * \return Positive on success, negative on errors.
518 */
519 static int get_afsi_object_of_path(const char *path, struct osl_object *obj)
520 {
521 struct osl_row *row;
522 int ret = aft_get_row_of_path(path, &row);
523 if (ret < 0)
524 return ret;
525 return get_afsi_object_of_row(row, obj);
526 }
527
528 /**
529 * Get the audio file selector info, given a row of the audio file table.
530 *
531 * \param row Pointer to a row in the audio file table.
532 * \param afsi Result pointer.
533 *
534 * \return Positive on success, negative on errors.
535 */
536 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
537 {
538 struct osl_object obj;
539 int ret = get_afsi_object_of_row(row, &obj);
540 if (ret < 0)
541 return ret;
542 return load_afsi(afsi, &obj);
543 }
544
545 /**
546 * Get the audio file selector info, given the path of an audio table.
547 *
548 * \param path The full path of the audio file.
549 * \param afsi Result pointer.
550 *
551 * \return Positive on success, negative on errors.
552 */
553 int get_afsi_of_path(const char *path, struct afs_info *afsi)
554 {
555 struct osl_object obj;
556 int ret = get_afsi_object_of_path(path, &obj);
557 if (ret < 0)
558 return ret;
559 return load_afsi(afsi, &obj);
560 }
561
562 /**
563 * Get the path of an audio file, given a row of the audio file table.
564 *
565 * \param row Pointer to a row in the audio file table.
566 * \param path Result pointer.
567 *
568 * The result is a pointer to mmapped data. The caller must not attempt
569 * to free it.
570 *
571 * \return Standard.
572 */
573 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
574 {
575 struct osl_object path_obj;
576 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_PATH,
577 &path_obj));
578 if (ret < 0)
579 return ret;
580 *path = path_obj.data;
581 return 1;
582 }
583
584 /**
585 * Get the object containing the hash value of an audio file, given a row.
586 *
587 * \param row Pointer to a row of the audio file table.
588 * \param obj Result pointer.
589 *
590 * \return The return value of the underlying call to osl_get_object().
591 *
592 * \sa get_hash_of_row().
593 */
594 static int get_hash_object_of_aft_row(const struct osl_row *row,
595 struct osl_object *obj)
596 {
597 return osl(osl_get_object(audio_file_table, row, AFTCOL_HASH, obj));
598 }
599
600 /**
601 * Get the hash value of an audio file, given a row of the audio file table.
602 *
603 * \param row Pointer to a row of the audio file table.
604 * \param hash Result pointer.
605 *
606 * \a hash points to mapped data and must not be freed by the caller.
607 *
608 * \return The return value of the underlying call to
609 * get_hash_object_of_aft_row().
610 */
611 static int get_hash_of_row(const struct osl_row *row, HASH_TYPE **hash)
612 {
613 struct osl_object obj;
614 int ret = get_hash_object_of_aft_row(row, &obj);
615
616 if (ret < 0)
617 return ret;
618 *hash = obj.data;
619 return 1;
620 }
621
622 /**
623 * Get the audio format handler info, given a row of the audio file table.
624 *
625 * \param row Pointer to a row of the audio file table.
626 * \param afhi Result pointer.
627 *
628 * \return The return value of the underlying call to osl_get_object().
629 *
630 * \sa get_chunk_table_of_row().
631 */
632 int get_afhi_of_row(const struct osl_row *row, struct afh_info *afhi)
633 {
634 struct osl_object obj;
635 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_AFHI,
636 &obj));
637 if (ret < 0)
638 return ret;
639 load_afhi(obj.data, afhi);
640 return 1;
641 }
642
643 /* returns shmid on success */
644 static int save_afd(struct audio_file_data *afd)
645 {
646 size_t size = sizeof(*afd) + sizeof_chunk_table(&afd->afhi);
647 int shmid, ret = shm_new(size);
648 void *shm_afd;
649 char *buf;
650
651 if (ret < 0)
652 return ret;
653 shmid = ret;
654 ret = shm_attach(shmid, ATTACH_RW, &shm_afd);
655 if (ret < 0)
656 goto err;
657 buf = shm_afd;
658 buf += sizeof(*afd);
659 afd->max_chunk_size = save_chunk_table(&afd->afhi, buf);
660 *(struct audio_file_data *)shm_afd = *afd;
661 shm_detach(shm_afd);
662 return shmid;
663 err:
664 shm_destroy(shmid);
665 return ret;
666 }
667
668 /**
669 * Extract a afd stored in a shared memory area.
670 *
671 * Attach the shared memory area given by \a shmid, load the audio file data
672 * stored therein and detach the area afterwards. Called by vss, after
673 * receiving a positive response to the request for the next audio file.
674 +
675 * \param shmid The identifier of the shared memory area containing the afd.
676 * \param afd Result pointer.
677 *
678 * \return Standard.
679 */
680 int load_afd(int shmid, struct audio_file_data *afd)
681 {
682 void *shm_afd;
683 char *buf;
684 int ret;
685
686 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
687 if (ret < 0)
688 return ret;
689 *afd = *(struct audio_file_data *)shm_afd;
690 buf = shm_afd;
691 buf += sizeof(*afd);
692 load_chunk_table(&afd->afhi, buf);
693 shm_detach(shm_afd);
694 return 1;
695 }
696
697 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
698 time_t current_time, enum ls_listing_mode lm)
699 {
700 struct tm t;
701
702 if (!localtime_r((time_t *)seconds, &t))
703 return -E_LOCALTIME;
704 if (lm == LS_MODE_MBOX) {
705 if (!strftime(buf, size, "%c", &t))
706 return -E_STRFTIME;
707 return 1;
708 }
709 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
710 if (!strftime(buf, size, "%b %e %k:%M", &t))
711 return -E_STRFTIME;
712 return 1;
713 }
714 if (!strftime(buf, size, "%b %e %Y", &t))
715 return -E_STRFTIME;
716 return 1;
717 }
718
719 /** Compute the number of (decimal) digits of a number. */
720 #define GET_NUM_DIGITS(x, num) { \
721 typeof((x)) _tmp = PARA_ABS(x); \
722 *num = 1; \
723 if ((_tmp)) \
724 while ((_tmp) > 9) { \
725 (_tmp) /= 10; \
726 (*num)++; \
727 } \
728 }
729
730 static short unsigned get_duration_width(int seconds)
731 {
732 short unsigned width;
733 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
734
735 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
736 return 4 + (mins > 9);
737 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
738 GET_NUM_DIGITS(hours, &width);
739 return width + 6;
740 }
741
742 static void get_duration_buf(int seconds, char *buf, struct ls_options *opts)
743 {
744 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
745 short unsigned max_width;
746
747 if (!hours) { /* m:ss or mm:ss */
748 max_width = opts->mode == LS_MODE_LONG?
749 opts->widths.duration_width : 4;
750 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
751 } else { /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
752 max_width = opts->mode == LS_MODE_LONG?
753 opts->widths.duration_width : 7;
754 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
755 seconds % 60);
756 }
757 }
758
759
760 static int write_attribute_items(struct para_buffer *b,
761 const char *att_bitmap, struct afs_info *afsi)
762 {
763 char *att_text;
764 int ret;
765
766 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_BITMAP, "%s\n", att_bitmap);
767 if (ret < 0)
768 return ret;
769 ret = get_attribute_text(&afsi->attributes, " ", &att_text);
770 if (ret < 0)
771 return ret;
772 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_TXT, "%s\n", att_text);
773 free(att_text);
774 return ret;
775 }
776
777 static int write_lyrics_items(struct para_buffer *b, struct afs_info *afsi)
778 {
779 char *lyrics_name;
780 int ret;
781
782 ret = WRITE_STATUS_ITEM(b, SI_LYRICS_ID, "%u\n", afsi->lyrics_id);
783 if (ret < 0)
784 return ret;
785 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
786 return WRITE_STATUS_ITEM(b, SI_LYRICS_NAME, "%s\n", lyrics_name?
787 lyrics_name : "(none)");
788 }
789
790 static int write_image_items(struct para_buffer *b, struct afs_info *afsi)
791 {
792 char *image_name;
793 int ret;
794
795 ret = WRITE_STATUS_ITEM(b, SI_IMAGE_ID, "%u\n", afsi->image_id);
796 if (ret < 0)
797 return ret;
798 img_get_name_by_id(afsi->image_id, &image_name);
799 return WRITE_STATUS_ITEM(b, SI_IMAGE_NAME, "%s\n", image_name?
800 image_name : "(none)");
801 }
802
803 static int write_filename_items(struct para_buffer *b, const char *path,
804 unsigned flags)
805 {
806 char *val;
807 int ret;
808
809 if (!(flags & LS_FLAG_FULL_PATH))
810 return WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", path);
811 ret = WRITE_STATUS_ITEM(b, SI_PATH, "%s\n", path);
812 if (ret < 0)
813 return ret;
814 val = para_basename(path);
815 ret = WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", val? val : "");
816 if (ret < 0)
817 return ret;
818 val = para_dirname(path);
819 ret = WRITE_STATUS_ITEM(b, SI_DIRECTORY, "%s\n", val? val : "");
820 free(val);
821 return ret;
822 }
823
824 static int print_chunk_table(struct ls_data *d, struct para_buffer *b)
825 {
826 struct osl_object chunk_table_obj;
827 struct osl_row *aft_row;
828 int ret, i;
829 char *buf;
830
831 ret = aft_get_row_of_hash(d->hash, &aft_row);
832 if (ret < 0)
833 return ret;
834 ret = osl_open_disk_object(audio_file_table, aft_row,
835 AFTCOL_CHUNKS, &chunk_table_obj);
836 if (ret < 0)
837 return ret;
838 ret = para_printf(b, "%s\n"
839 "chunk_time: %lu:%lu\nchunk_offsets: ",
840 d->path,
841 (long unsigned) d->afhi.chunk_tv.tv_sec,
842 (long unsigned) d->afhi.chunk_tv.tv_usec
843 );
844 if (ret < 0)
845 goto out;
846 buf = chunk_table_obj.data;
847 for (i = 0; i <= d->afhi.chunks_total; i++) {
848 ret = para_printf(b, "%u ", (unsigned) read_u32(buf + 4 * i));
849 if (ret < 0)
850 goto out;
851 }
852 ret = para_printf(b, "\n");
853 out:
854 osl_close_disk_object(&chunk_table_obj);
855 return ret;
856 }
857
858 static int write_score(struct para_buffer *b, struct ls_data *d,
859 struct ls_options *opts)
860 {
861 if (!(opts->flags & LS_FLAG_ADMISSIBLE_ONLY)) /* no score*/
862 return 0;
863 return WRITE_STATUS_ITEM(b, SI_SCORE, "%li\n", d->score);
864 }
865
866 static int print_list_item(struct ls_data *d, struct ls_options *opts,
867 struct para_buffer *b, time_t current_time)
868 {
869 int ret;
870 char att_buf[65];
871 char last_played_time[30];
872 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
873 struct afs_info *afsi = &d->afsi;
874 struct afh_info *afhi = &d->afhi;
875 char asc_hash[2 * HASH_SIZE + 1];
876
877 if (opts->mode == LS_MODE_SHORT) {
878 ret = para_printf(b, "%s\n", d->path);
879 goto out;
880 }
881 if (opts->mode == LS_MODE_CHUNKS) {
882 ret = print_chunk_table(d, b);
883 goto out;
884 }
885 get_attribute_bitmap(&afsi->attributes, att_buf);
886 if (opts->flags & LS_FLAG_UNIXDATE)
887 sprintf(last_played_time, "%llu",
888 (long long unsigned)afsi->last_played);
889 else {
890 ret = get_local_time(&afsi->last_played, last_played_time,
891 sizeof(last_played_time), current_time, opts->mode);
892 if (ret < 0)
893 goto out;
894 }
895 get_duration_buf(afhi->seconds_total, duration_buf, opts);
896 if (opts->mode == LS_MODE_LONG) {
897 struct ls_widths *w = &opts->widths;
898 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY) {
899 ret = para_printf(b, "%*li ",
900 opts->widths.score_width, d->score);
901 if (ret < 0)
902 goto out;
903 }
904 ret = para_printf(b,
905 "%s " /* attributes */
906 "%*u " /* amp */
907 "%*d " /* image_id */
908 "%*d " /* lyrics_id */
909 "%*d " /* bitrate */
910 "%s " /* audio format */
911 "%*d " /* frequency */
912 "%d " /* channels */
913 "%s " /* duration */
914 "%*d " /* num_played */
915 "%s " /* last_played */
916 "%s\n", /* path */
917 att_buf,
918 w->amp_width, afsi->amp,
919 w->image_id_width, afsi->image_id,
920 w->lyrics_id_width, afsi->lyrics_id,
921 w->bitrate_width, afhi->bitrate,
922 audio_format_name(afsi->audio_format_id),
923 w->frequency_width, afhi->frequency,
924 afhi->channels,
925 duration_buf,
926 w->num_played_width, afsi->num_played,
927 last_played_time,
928 d->path
929 );
930 goto out;
931 }
932 if (opts->mode == LS_MODE_MBOX) {
933 const char *bn = para_basename(d->path);
934 ret = para_printf(b,
935 "From foo@localhost %s\n"
936 "Received: from\nTo: bar\nFrom: a\n"
937 "Subject: %s\n\n",
938 last_played_time,
939 bn? bn : "?");
940 if (ret < 0)
941 goto out;
942 }
943 ret = write_filename_items(b, d->path, opts->flags);
944 if (ret < 0)
945 goto out;
946 ret = write_score(b, d, opts);
947 if (ret < 0)
948 goto out;
949 ret = write_attribute_items(b, att_buf, afsi);
950 if (ret < 0)
951 goto out;
952 ret = write_image_items(b, afsi);
953 if (ret < 0)
954 goto out;
955 ret = write_lyrics_items(b, afsi);
956 if (ret < 0)
957 goto out;
958 hash_to_asc(d->hash, asc_hash);
959 ret = WRITE_STATUS_ITEM(b, SI_HASH, "%s\n", asc_hash);
960 if (ret < 0)
961 goto out;
962 ret = WRITE_STATUS_ITEM(b, SI_BITRATE, "%dkbit/s\n", afhi->bitrate);
963 if (ret < 0)
964 goto out;
965 ret = WRITE_STATUS_ITEM(b, SI_FORMAT, "%s\n",
966 audio_format_name(afsi->audio_format_id));
967 if (ret < 0)
968 goto out;
969 ret = WRITE_STATUS_ITEM(b, SI_FREQUENCY, "%dHz\n", afhi->frequency);
970 if (ret < 0)
971 goto out;
972 ret = WRITE_STATUS_ITEM(b, SI_CHANNELS, "%d\n", afhi->channels);
973 if (ret < 0)
974 goto out;
975 ret = WRITE_STATUS_ITEM(b, SI_DURATION, "%s\n", duration_buf);
976 if (ret < 0)
977 goto out;
978 ret = WRITE_STATUS_ITEM(b, SI_SECONDS_TOTAL, "%lu\n",
979 afhi->seconds_total);
980 if (ret < 0)
981 goto out;
982 ret = WRITE_STATUS_ITEM(b, SI_LAST_PLAYED, "%s\n", last_played_time);
983 if (ret < 0)
984 goto out;
985 ret = WRITE_STATUS_ITEM(b, SI_NUM_PLAYED, "%d\n", afsi->num_played);
986 if (ret < 0)
987 goto out;
988 ret = WRITE_STATUS_ITEM(b, SI_AMPLIFICATION, "%u\n", afsi->amp);
989 if (ret < 0)
990 goto out;
991 ret = WRITE_STATUS_ITEM(b, SI_CHUNK_TIME, "%lu\n",
992 tv2ms(&afhi->chunk_tv));
993 if (ret < 0)
994 goto out;
995 ret = WRITE_STATUS_ITEM(b, SI_NUM_CHUNKS, "%lu\n",
996 afhi->chunks_total);
997 if (ret < 0)
998 goto out;
999 ret = WRITE_STATUS_ITEM(b, SI_TECHINFO, "%s\n", afhi->techinfo);
1000 if (ret < 0)
1001 goto out;
1002 ret = WRITE_STATUS_ITEM(b, SI_ARTIST, "%s\n", afhi->tags.artist);
1003 if (ret < 0)
1004 goto out;
1005 ret = WRITE_STATUS_ITEM(b, SI_TITLE, "%s\n", afhi->tags.title);
1006 if (ret < 0)
1007 goto out;
1008 ret = WRITE_STATUS_ITEM(b, SI_YEAR, "%s\n", afhi->tags.year);
1009 if (ret < 0)
1010 goto out;
1011 ret = WRITE_STATUS_ITEM(b, SI_ALBUM, "%s\n", afhi->tags.album);
1012 if (ret < 0)
1013 goto out;
1014 ret = WRITE_STATUS_ITEM(b, SI_COMMENT, "%s\n", afhi->tags.comment);
1015 if (ret < 0)
1016 goto out;
1017 if (opts->mode == LS_MODE_MBOX) {
1018 struct osl_object lyrics_def;
1019 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
1020 if (lyrics_def.data) {
1021 ret = para_printf(b, "Lyrics:\n~~~~~~~\n%s",
1022 (char *)lyrics_def.data);
1023 osl_close_disk_object(&lyrics_def);
1024 }
1025 }
1026 out:
1027 return ret;
1028 }
1029
1030 static int make_status_items(struct audio_file_data *afd,
1031 struct afs_info *afsi, char *path, long score,
1032 HASH_TYPE *hash)
1033 {
1034 struct ls_data d = {
1035 .afhi = afd->afhi,
1036 .afsi = *afsi,
1037 .path = path,
1038 .score = score,
1039 .hash = hash
1040 };
1041 struct ls_options opts = {
1042 .flags = LS_FLAG_FULL_PATH | LS_FLAG_ADMISSIBLE_ONLY,
1043 .mode = LS_MODE_VERBOSE,
1044 };
1045 struct para_buffer pb = {.max_size = SHMMAX - 1};
1046 time_t current_time;
1047 int ret;
1048
1049 time(&current_time);
1050 ret = print_list_item(&d, &opts, &pb, current_time);
1051 if (ret < 0)
1052 return ret;
1053 free(status_items);
1054 status_items = pb.buf;
1055 memset(&pb, 0, sizeof(pb));
1056 pb.max_size = SHMMAX - 1;
1057 pb.flags = PBF_SIZE_PREFIX;
1058 ret = print_list_item(&d, &opts, &pb, current_time);
1059 if (ret < 0) {
1060 free(status_items);
1061 status_items = NULL;
1062 return ret;
1063 }
1064 free(parser_friendly_status_items);
1065 parser_friendly_status_items = pb.buf;
1066 return 1;
1067 }
1068
1069 /**
1070 * Mmap the given audio file and update statistics.
1071 *
1072 * \param aft_row Determines the audio file to be opened and updated.
1073 * \param score The score of the audio file.
1074 * \param afd Result pointer.
1075 *
1076 * On success, the numplayed field of the audio file selector info is increased
1077 * and the lastplayed time is set to the current time. Finally, the score of
1078 * the audio file is updated.
1079 *
1080 * \return Positive shmid on success, negative on errors.
1081 */
1082 int open_and_update_audio_file(struct osl_row *aft_row, long score,
1083 struct audio_file_data *afd)
1084 {
1085 HASH_TYPE *aft_hash, file_hash[HASH_SIZE];
1086 struct osl_object afsi_obj;
1087 struct afs_info old_afsi, new_afsi;
1088 int ret = get_hash_of_row(aft_row, &aft_hash);
1089 struct afsi_change_event_data aced;
1090 struct osl_object map, chunk_table_obj;
1091 char *path;
1092
1093 if (ret < 0)
1094 return ret;
1095 ret = get_audio_file_path_of_row(aft_row, &path);
1096 if (ret < 0)
1097 return ret;
1098 PARA_NOTICE_LOG("%s\n", path);
1099 ret = get_afsi_object_of_row(aft_row, &afsi_obj);
1100 if (ret < 0)
1101 return ret;
1102 ret = load_afsi(&old_afsi, &afsi_obj);
1103 if (ret < 0)
1104 return ret;
1105 ret = get_afhi_of_row(aft_row, &afd->afhi);
1106 if (ret < 0)
1107 return ret;
1108 afd->afhi.chunk_table = NULL;
1109 ret = osl_open_disk_object(audio_file_table, aft_row,
1110 AFTCOL_CHUNKS, &chunk_table_obj);
1111 if (ret < 0)
1112 goto err;
1113 ret = mmap_full_file(path, O_RDONLY, &map.data,
1114 &map.size, &afd->fd);
1115 if (ret < 0)
1116 goto err;
1117 hash_function(map.data, map.size, file_hash);
1118 ret = hash_compare(file_hash, aft_hash);
1119 para_munmap(map.data, map.size);
1120 if (ret) {
1121 ret = -E_HASH_MISMATCH;
1122 goto err;
1123 }
1124 new_afsi = old_afsi;
1125 new_afsi.num_played++;
1126 new_afsi.last_played = time(NULL);
1127 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
1128
1129 load_chunk_table(&afd->afhi, chunk_table_obj.data);
1130 ret = make_status_items(afd, &old_afsi, path, score, file_hash);
1131 if (ret < 0)
1132 goto err;
1133 aced.aft_row = aft_row;
1134 aced.old_afsi = &old_afsi;
1135 afs_event(AFSI_CHANGE, NULL, &aced);
1136 ret = save_afd(afd);
1137 err:
1138 free(afd->afhi.chunk_table);
1139 osl_close_disk_object(&chunk_table_obj);
1140 return ret;
1141 }
1142
1143 static int ls_audio_format_compare(const void *a, const void *b)
1144 {
1145 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1146 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
1147 }
1148
1149 static int ls_duration_compare(const void *a, const void *b)
1150 {
1151 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1152 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
1153 }
1154
1155 static int ls_bitrate_compare(const void *a, const void *b)
1156 {
1157 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1158 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
1159 }
1160
1161 static int ls_lyrics_id_compare(const void *a, const void *b)
1162 {
1163 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1164 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
1165 }
1166
1167 static int ls_image_id_compare(const void *a, const void *b)
1168 {
1169 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1170 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
1171 }
1172
1173 static int ls_channels_compare(const void *a, const void *b)
1174 {
1175 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1176 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
1177 }
1178
1179 static int ls_frequency_compare(const void *a, const void *b)
1180 {
1181 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1182 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
1183 }
1184
1185 static int ls_num_played_compare(const void *a, const void *b)
1186 {
1187 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1188 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1189 }
1190
1191 static int ls_last_played_compare(const void *a, const void *b)
1192 {
1193 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1194 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1195 }
1196
1197 static int ls_score_compare(const void *a, const void *b)
1198 {
1199 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1200 return NUM_COMPARE(d1->score, d2->score);
1201 }
1202
1203 static int ls_path_compare(const void *a, const void *b)
1204 {
1205 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1206 return strcmp(d1->path, d2->path);
1207 }
1208
1209 static int sort_matching_paths(struct ls_options *options)
1210 {
1211 size_t nmemb = options->num_matching_paths;
1212 size_t size = sizeof(*options->data_ptr);
1213 int (*compar)(const void *, const void *);
1214 int i;
1215
1216 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1217 for (i = 0; i < nmemb; i++)
1218 options->data_ptr[i] = options->data + i;
1219
1220 /* In these cases the array is already sorted */
1221 if (options->sorting == LS_SORT_BY_PATH
1222 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1223 && (options->flags & LS_FLAG_FULL_PATH))
1224 return 1;
1225 if (options->sorting == LS_SORT_BY_SCORE &&
1226 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1227 return 1;
1228
1229 switch (options->sorting) {
1230 case LS_SORT_BY_PATH:
1231 compar = ls_path_compare; break;
1232 case LS_SORT_BY_SCORE:
1233 compar = ls_score_compare; break;
1234 case LS_SORT_BY_LAST_PLAYED:
1235 compar = ls_last_played_compare; break;
1236 case LS_SORT_BY_NUM_PLAYED:
1237 compar = ls_num_played_compare; break;
1238 case LS_SORT_BY_FREQUENCY:
1239 compar = ls_frequency_compare; break;
1240 case LS_SORT_BY_CHANNELS:
1241 compar = ls_channels_compare; break;
1242 case LS_SORT_BY_IMAGE_ID:
1243 compar = ls_image_id_compare; break;
1244 case LS_SORT_BY_LYRICS_ID:
1245 compar = ls_lyrics_id_compare; break;
1246 case LS_SORT_BY_BITRATE:
1247 compar = ls_bitrate_compare; break;
1248 case LS_SORT_BY_DURATION:
1249 compar = ls_duration_compare; break;
1250 case LS_SORT_BY_AUDIO_FORMAT:
1251 compar = ls_audio_format_compare; break;
1252 default:
1253 return -E_BAD_SORT;
1254 }
1255 qsort(options->data_ptr, nmemb, size, compar);
1256 return 1;
1257 }
1258
1259 /* row is either an aft_row or a row of the score table */
1260 /* TODO: Only compute widths if we need them */
1261 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1262 {
1263 int ret, i;
1264 struct ls_options *options = ls_opts;
1265 struct ls_data *d;
1266 struct ls_widths *w;
1267 unsigned short num_digits;
1268 unsigned tmp;
1269 struct osl_row *aft_row;
1270 long score;
1271 char *path;
1272
1273 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1274 ret = get_score_and_aft_row(row, &score, &aft_row);
1275 if (ret < 0)
1276 return ret;
1277 } else
1278 aft_row = row;
1279 ret = get_audio_file_path_of_row(aft_row, &path);
1280 if (ret < 0)
1281 return ret;
1282 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1283 char *p = strrchr(path, '/');
1284 if (p)
1285 path = p + 1;
1286 }
1287 if (options->num_patterns) {
1288 for (i = 0; i < options->num_patterns; i++) {
1289 ret = fnmatch(options->patterns[i], path, 0);
1290 if (!ret)
1291 break;
1292 if (ret == FNM_NOMATCH)
1293 continue;
1294 return -E_FNMATCH;
1295 }
1296 if (i >= options->num_patterns) /* no match */
1297 return 1;
1298 }
1299 tmp = options->num_matching_paths++;
1300 if (options->num_matching_paths > options->array_size) {
1301 options->array_size++;
1302 options->array_size *= 2;
1303 options->data = para_realloc(options->data, options->array_size
1304 * sizeof(*options->data));
1305 }
1306 d = options->data + tmp;
1307 ret = get_afsi_of_row(aft_row, &d->afsi);
1308 if (ret < 0)
1309 return ret;
1310 ret = get_afhi_of_row(aft_row, &d->afhi);
1311 if (ret < 0)
1312 return ret;
1313 d->path = path;
1314 ret = get_hash_of_row(aft_row, &d->hash);
1315 if (ret < 0)
1316 goto err;
1317 w = &options->widths;
1318 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1319 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1320 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1321 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1322 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1323 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1324 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1325 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1326 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1327 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1328 /* get the number of chars to print this amount of time */
1329 num_digits = get_duration_width(d->afhi.seconds_total);
1330 w->duration_width = PARA_MAX(w->duration_width, num_digits);
1331 GET_NUM_DIGITS(d->afsi.amp, &num_digits);
1332 w->amp_width = PARA_MAX(w->amp_width, num_digits);
1333 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1334 GET_NUM_DIGITS(score, &num_digits);
1335 num_digits++; /* add one for the sign (space or "-") */
1336 w->score_width = PARA_MAX(w->score_width, num_digits);
1337 d->score = score;
1338 }
1339 return 1;
1340 err:
1341 return ret;
1342 }
1343
1344 static void com_ls_callback(int fd, const struct osl_object *query)
1345 {
1346 struct ls_options *opts = query->data;
1347 char *p, *pattern_start = (char *)query->data + sizeof(*opts);
1348 struct para_buffer b = {.max_size = SHMMAX,
1349 .flags = (opts->mode == LS_MODE_PARSER)? PBF_SIZE_PREFIX : 0,
1350 .max_size_handler = pass_buffer_as_shm, .private_data = &fd};
1351 int i = 0, ret;
1352 time_t current_time;
1353
1354 if (opts->num_patterns) {
1355 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1356 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1357 opts->patterns[i] = p;
1358 p += strlen(p) + 1;
1359 }
1360 } else
1361 opts->patterns = NULL;
1362 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1363 ret = admissible_file_loop(opts, prepare_ls_row);
1364 else
1365 ret = osl(osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1366 prepare_ls_row));
1367 if (ret < 0)
1368 goto out;
1369 if (!opts->num_matching_paths)
1370 goto out;
1371 ret = sort_matching_paths(opts);
1372 if (ret < 0)
1373 goto out;
1374 time(&current_time);
1375 if (opts->flags & LS_FLAG_REVERSE)
1376 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1377 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1378 if (ret < 0)
1379 goto out;
1380 }
1381 else
1382 for (i = 0; i < opts->num_matching_paths; i++) {
1383 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1384 if (ret < 0)
1385 goto out;
1386 }
1387 out:
1388 if (b.offset)
1389 pass_buffer_as_shm(b.buf, b.offset, &fd);
1390 free(b.buf);
1391 free(opts->data);
1392 free(opts->data_ptr);
1393 free(opts->patterns);
1394 }
1395
1396 /*
1397 * TODO: flags -h (sort by hash)
1398 */
1399 int com_ls(struct rc4_context *rc4c, int argc, char * const * const argv)
1400 {
1401 int i, ret;
1402 unsigned flags = 0;
1403 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1404 enum ls_listing_mode mode = LS_MODE_SHORT;
1405 struct ls_options opts = {.patterns = NULL};
1406 struct osl_object query = {.data = &opts, .size = sizeof(opts)};
1407
1408 for (i = 1; i < argc; i++) {
1409 const char *arg = argv[i];
1410 if (arg[0] != '-')
1411 break;
1412 if (!strcmp(arg, "--")) {
1413 i++;
1414 break;
1415 }
1416 if (!strncmp(arg, "-l", 2)) {
1417 if (!*(arg + 2)) {
1418 mode = LS_MODE_LONG;
1419 continue;
1420 }
1421 if (*(arg + 3))
1422 return -E_AFT_SYNTAX;
1423 switch(*(arg + 2)) {
1424 case 's':
1425 mode = LS_MODE_SHORT;
1426 continue;
1427 case 'l':
1428 mode = LS_MODE_LONG;
1429 continue;
1430 case 'v':
1431 mode = LS_MODE_VERBOSE;
1432 continue;
1433 case 'm':
1434 mode = LS_MODE_MBOX;
1435 continue;
1436 case 'c':
1437 mode = LS_MODE_CHUNKS;
1438 continue;
1439 case 'p':
1440 mode = LS_MODE_PARSER;
1441 continue;
1442 default:
1443 return -E_AFT_SYNTAX;
1444 }
1445 }
1446 if (!strcmp(arg, "-p")) {
1447 flags |= LS_FLAG_FULL_PATH;
1448 continue;
1449 }
1450 if (!strcmp(arg, "-a")) {
1451 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1452 continue;
1453 }
1454 if (!strcmp(arg, "-r")) {
1455 flags |= LS_FLAG_REVERSE;
1456 continue;
1457 }
1458 if (!strcmp(arg, "-d")) {
1459 flags |= LS_FLAG_UNIXDATE;
1460 continue;
1461 }
1462 if (!strncmp(arg, "-s", 2)) {
1463 if (!*(arg + 2) || *(arg + 3))
1464 return -E_AFT_SYNTAX;
1465 switch(*(arg + 2)) {
1466 case 'p':
1467 sort = LS_SORT_BY_PATH;
1468 continue;
1469 case 's': /* -ss implies -a */
1470 sort = LS_SORT_BY_SCORE;
1471 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1472 continue;
1473 case 'l':
1474 sort = LS_SORT_BY_LAST_PLAYED;
1475 continue;
1476 case 'n':
1477 sort = LS_SORT_BY_NUM_PLAYED;
1478 continue;
1479 case 'f':
1480 sort = LS_SORT_BY_FREQUENCY;
1481 continue;
1482 case 'c':
1483 sort = LS_SORT_BY_CHANNELS;
1484 continue;
1485 case 'i':
1486 sort = LS_SORT_BY_IMAGE_ID;
1487 continue;
1488 case 'y':
1489 sort = LS_SORT_BY_LYRICS_ID;
1490 continue;
1491 case 'b':
1492 sort = LS_SORT_BY_BITRATE;
1493 continue;
1494 case 'd':
1495 sort = LS_SORT_BY_DURATION;
1496 continue;
1497 case 'a':
1498 sort = LS_SORT_BY_AUDIO_FORMAT;
1499 continue;
1500 default:
1501 return -E_AFT_SYNTAX;
1502 }
1503 }
1504 return -E_AFT_SYNTAX;
1505 }
1506 opts.flags = flags;
1507 opts.sorting = sort;
1508 opts.mode = mode;
1509 opts.num_patterns = argc - i;
1510 ret = send_option_arg_callback_request(&query, opts.num_patterns,
1511 argv + i, com_ls_callback, rc4_send_result, rc4c);
1512 return ret;
1513 }
1514
1515 /**
1516 * Call the given function for each file in the audio file table.
1517 *
1518 * \param private_data An arbitrary data pointer, passed to \a func.
1519 * \param func The custom function to be called.
1520 *
1521 * \return Standard.
1522 */
1523 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1524 {
1525 return osl(osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1526 func));
1527 }
1528
1529 static struct osl_row *find_hash_sister(HASH_TYPE *hash)
1530 {
1531 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
1532 struct osl_row *row;
1533
1534 osl_get_row(audio_file_table, AFTCOL_HASH, &obj, &row);
1535 return row;
1536 }
1537
1538 /** The format of the data stored by save_audio_file_data(). */
1539 enum com_add_buffer_offsets {
1540 /** afhi (if present) starts here. */
1541 CAB_AFHI_OFFSET_POS = 0,
1542 /** Start of the chunk table (if present). */
1543 CAB_CHUNKS_OFFSET_POS = 2,
1544 /** Audio format id. */
1545 CAB_AUDIO_FORMAT_OFFSET = 4,
1546 /** Flags given to the add command. */
1547 CAB_FLAGS_OFFSET = 5,
1548 /** The hash of the audio file being added. */
1549 CAB_HASH_OFFSET = 9,
1550 /** Start of the path of the audio file. */
1551 CAB_PATH_OFFSET = (CAB_HASH_OFFSET + HASH_SIZE),
1552 };
1553
1554 /*
1555 * Store the given data to a single buffer. Doesn't need the audio file selector
1556 * info struct as the server knows it as well.
1557 *
1558 * It's OK to call this with afhi == NULL. In this case, the audio format
1559 * handler info won't be stored in the buffer.
1560 */
1561 static void save_add_callback_buffer(HASH_TYPE *hash, const char *path,
1562 struct afh_info *afhi, uint32_t flags,
1563 uint8_t audio_format_num, struct osl_object *obj)
1564 {
1565 size_t path_len = strlen(path) + 1;
1566 size_t afhi_size = sizeof_afhi_buf(afhi);
1567 size_t size = CAB_PATH_OFFSET + path_len + afhi_size
1568 + sizeof_chunk_table(afhi);
1569 char *buf = para_malloc(size);
1570 uint16_t pos;
1571
1572 write_u8(buf + CAB_AUDIO_FORMAT_OFFSET, audio_format_num);
1573 write_u32(buf + CAB_FLAGS_OFFSET, flags);
1574
1575 memcpy(buf + CAB_HASH_OFFSET, hash, HASH_SIZE);
1576 strcpy(buf + CAB_PATH_OFFSET, path);
1577
1578 pos = CAB_PATH_OFFSET + path_len;
1579 PARA_DEBUG_LOG("size: %zu, afhi starts at %d\n", size, pos);
1580 PARA_DEBUG_LOG("last afhi byte: %p, pos %zu\n", buf + pos + afhi_size - 1,
1581 pos + afhi_size - 1);
1582 write_u16(buf + CAB_AFHI_OFFSET_POS, pos);
1583 save_afhi(afhi, buf + pos);
1584
1585 pos += afhi_size;
1586 PARA_DEBUG_LOG("size: %zu, chunks start at %d\n", size, pos);
1587 write_u16(buf + CAB_CHUNKS_OFFSET_POS, pos);
1588 if (afhi)
1589 save_chunk_table(afhi, buf + pos);
1590 PARA_DEBUG_LOG("last byte in buf: %p\n", buf + size - 1);
1591 obj->data = buf;
1592 obj->size = size;
1593 }
1594
1595 /*
1596
1597 Overview of the add command.
1598
1599 Input: What was passed to the callback by the command handler.
1600 ~~~~~~
1601 HS: Hash sister. Whether an audio file with identical hash
1602 already exists in the osl database.
1603
1604 PB: Path brother. Whether a file with the given path exists
1605 in the table.
1606
1607 F: Force flag given. Whether add was called with -f.
1608
1609 output: Action performed by the callback.
1610 ~~~~~~~
1611 AFHI: Whether afhi and chunk table are computed and sent.
1612 ACTION: Table modifications to be done by the callback.
1613
1614 +----+----+---+------+---------------------------------------------------+
1615 | HS | PB | F | AFHI | ACTION
1616 +----+----+---+------+---------------------------------------------------+
1617 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1618 | | update path, keep afsi
1619 +----+----+---+------+---------------------------------------------------+
1620 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1621 | | otherwise: remove PB, HS: update path, keep afhi,
1622 | | afsi.
1623 +----+----+---+------+---------------------------------------------------+
1624 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1625 | | HS, keep afsi
1626 +----+----+---+------+---------------------------------------------------+
1627 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1628 +----+----+---+------+---------------------------------------------------+
1629 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1630 | | (force has no effect)
1631 +----+----+---+------+---------------------------------------------------+
1632 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1633 +----+----+---+------+---------------------------------------------------+
1634 | N | N | Y | Y | (new file) create new entry (force has no effect)
1635 +----+----+---+------+---------------------------------------------------+
1636 | N | N | N | Y | (new file) create new entry
1637 +----+----+---+------+---------------------------------------------------+
1638
1639 Notes:
1640
1641 afhi <=> force or no HS
1642 F => AFHI
1643
1644 */
1645
1646 /** Flags passed to the add command. */
1647 enum com_add_flags {
1648 /** Skip paths that exist already. */
1649 ADD_FLAG_LAZY = 1,
1650 /** Force adding. */
1651 ADD_FLAG_FORCE = 2,
1652 /** Print what is being done. */
1653 ADD_FLAG_VERBOSE = 4,
1654 /** Try to add files with unknown suffixes. */
1655 ADD_FLAG_ALL = 8,
1656 };
1657
1658 static void com_add_callback(int fd, const struct osl_object *query)
1659 {
1660 char *buf = query->data, *path;
1661 struct osl_row *pb, *aft_row;
1662 struct osl_row *hs;
1663 struct osl_object objs[NUM_AFT_COLUMNS];
1664 HASH_TYPE *hash;
1665 char asc[2 * HASH_SIZE + 1];
1666 int ret;
1667 char afsi_buf[AFSI_SIZE];
1668 uint32_t flags = read_u32(buf + CAB_FLAGS_OFFSET);
1669 struct afs_info default_afsi = {.last_played = 0};
1670 struct para_buffer msg = {.max_size = SHMMAX,
1671 .max_size_handler = pass_buffer_as_shm, .private_data = &fd};
1672 uint16_t afhi_offset, chunks_offset;
1673
1674 hash = (HASH_TYPE *)buf + CAB_HASH_OFFSET;
1675 hash_to_asc(hash, asc);;
1676 objs[AFTCOL_HASH].data = buf + CAB_HASH_OFFSET;
1677 objs[AFTCOL_HASH].size = HASH_SIZE;
1678
1679 path = buf + CAB_PATH_OFFSET;
1680 objs[AFTCOL_PATH].data = path;
1681 objs[AFTCOL_PATH].size = strlen(path) + 1;
1682
1683 PARA_INFO_LOG("request to add %s\n", path);
1684 hs = find_hash_sister(hash);
1685 ret = aft_get_row_of_path(path, &pb);
1686 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1687 goto out;
1688 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1689 if (flags & ADD_FLAG_VERBOSE)
1690 ret = para_printf(&msg, "ignoring duplicate\n");
1691 else
1692 ret = 1;
1693 goto out;
1694 }
1695 if (hs && hs != pb) {
1696 struct osl_object obj;
1697 if (pb) { /* hs trumps pb, remove pb */
1698 if (flags & ADD_FLAG_VERBOSE) {
1699 ret = para_printf(&msg, "removing path brother\n");
1700 if (ret < 0)
1701 goto out;
1702 }
1703 ret = osl(osl_del_row(audio_file_table, pb));
1704 if (ret < 0)
1705 goto out;
1706 pb = NULL;
1707 }
1708 /* file rename, update hs' path */
1709 if (flags & ADD_FLAG_VERBOSE) {
1710 ret = osl(osl_get_object(audio_file_table, hs,
1711 AFTCOL_PATH, &obj));
1712 if (ret < 0)
1713 goto out;
1714 ret = para_printf(&msg, "renamed from %s\n", (char *)obj.data);
1715 if (ret < 0)
1716 goto out;
1717 }
1718 ret = osl(osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1719 &objs[AFTCOL_PATH]));
1720 if (ret < 0)
1721 goto out;
1722 afs_event(AUDIO_FILE_RENAME, &msg, hs);
1723 if (!(flags & ADD_FLAG_FORCE))
1724 goto out;
1725 }
1726 /* no hs or force mode, child must have sent afhi */
1727 afhi_offset = read_u16(buf + CAB_AFHI_OFFSET_POS);
1728 chunks_offset = read_u16(buf + CAB_CHUNKS_OFFSET_POS);
1729
1730 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1731 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1732 ret = -E_NO_AFHI;
1733 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1734 goto out;
1735 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1736 objs[AFTCOL_CHUNKS].size = query->size - chunks_offset;
1737 if (pb && !hs) { /* update pb's hash */
1738 char old_asc[2 * HASH_SIZE + 1];
1739 HASH_TYPE *old_hash;
1740 ret = get_hash_of_row(pb, &old_hash);
1741 if (ret < 0)
1742 goto out;
1743 hash_to_asc(old_hash, old_asc);
1744 if (flags & ADD_FLAG_VERBOSE) {
1745 ret = para_printf(&msg, "file change: %s -> %s\n",
1746 old_asc, asc);
1747 if (ret < 0)
1748 goto out;
1749 }
1750 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1751 &objs[AFTCOL_HASH]);
1752 if (ret < 0)
1753 goto out;
1754 }
1755 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1756 struct osl_row *row = pb? pb : hs;
1757 /* update afhi and chunk_table */
1758 if (flags & ADD_FLAG_VERBOSE) {
1759 ret = para_printf(&msg, "updating afhi and chunk table\n");
1760 if (ret < 0)
1761 goto out;
1762 }
1763 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1764 &objs[AFTCOL_AFHI]));
1765 if (ret < 0)
1766 goto out;
1767 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1768 &objs[AFTCOL_CHUNKS]));
1769 if (ret < 0)
1770 goto out;
1771 afs_event(AFHI_CHANGE, &msg, row);
1772 goto out;
1773 }
1774 /* new entry, use default afsi */
1775 if (flags & ADD_FLAG_VERBOSE) {
1776 ret = para_printf(&msg, "new file\n");
1777 if (ret < 0)
1778 goto out;
1779 }
1780 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1781 default_afsi.audio_format_id = read_u8(buf + CAB_AUDIO_FORMAT_OFFSET);
1782
1783 objs[AFTCOL_AFSI].data = &afsi_buf;
1784 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1785 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1786 ret = osl(osl_add_and_get_row(audio_file_table, objs, &aft_row));
1787 afs_event(AUDIO_FILE_ADD, &msg, aft_row);
1788 out:
1789 if (ret < 0)
1790 para_printf(&msg, "%s\n", para_strerror(-ret));
1791 if (msg.offset)
1792 pass_buffer_as_shm(msg.buf, msg.offset, &fd);
1793 free(msg.buf);
1794 }
1795
1796 /** Used by com_add(). */
1797 struct private_add_data {
1798 /** The socket file descriptor, including rc4 keys. */
1799 struct rc4_context *rc4c;
1800 /** The given add flags. */
1801 uint32_t flags;
1802 };
1803
1804 static void path_brother_callback(int fd, const struct osl_object *query)
1805 {
1806 char *path = query->data;
1807 struct osl_row *path_brother;
1808 int ret = aft_get_row_of_path(path, &path_brother);
1809 if (ret < 0)
1810 return;
1811 pass_buffer_as_shm((char *)&path_brother, sizeof(path_brother), &fd);
1812 }
1813
1814 static void hash_sister_callback(int fd, const struct osl_object *query)
1815 {
1816 HASH_TYPE *hash = query->data;
1817 struct osl_row *hash_sister;
1818
1819 hash_sister = find_hash_sister(hash);
1820 if (!hash_sister)
1821 return;
1822 pass_buffer_as_shm((char *)&hash_sister, sizeof(hash_sister), &fd);
1823 }
1824
1825 static int get_row_pointer_from_result(struct osl_object *result, void *private)
1826 {
1827 struct osl_row **row = private;
1828 *row = result->data;
1829 return 1;
1830 }
1831
1832 static int add_one_audio_file(const char *path, void *private_data)
1833 {
1834 int ret, send_ret = 1, fd;
1835 uint8_t format_num = -1;
1836 struct private_add_data *pad = private_data;
1837 struct afh_info afhi, *afhi_ptr = NULL;
1838 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1839 struct osl_object map, obj = {.data = NULL}, query;
1840 HASH_TYPE hash[HASH_SIZE];
1841
1842 ret = guess_audio_format(path);
1843 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL))
1844 goto out_free;
1845 query.data = (char *)path;
1846 query.size = strlen(path) + 1;
1847 ret = send_callback_request(path_brother_callback, &query,
1848 get_row_pointer_from_result, &pb);
1849 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1850 goto out_free;
1851 ret = 1;
1852 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1853 if (pad->flags & ADD_FLAG_VERBOSE)
1854 send_ret = rc4_send_va_buffer(pad->rc4c,
1855 "lazy-ignore: %s\n", path);
1856 goto out_free;
1857 }
1858 /* We still want to add this file. Compute its hash. */
1859 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &fd);
1860 if (ret < 0)
1861 goto out_free;
1862 hash_function(map.data, map.size, hash);
1863
1864 /* Check whether the database contains a file with the same hash. */
1865 query.data = hash;
1866 query.size = HASH_SIZE;
1867 ret = send_callback_request(hash_sister_callback, &query,
1868 get_row_pointer_from_result, &hs);
1869 if (ret < 0)
1870 goto out_unmap;
1871 /* Return success if we already know this file. */
1872 ret = 1;
1873 if (pb && hs && hs == pb && !(pad->flags & ADD_FLAG_FORCE)) {
1874 if (pad->flags & ADD_FLAG_VERBOSE)
1875 send_ret = rc4_send_va_buffer(pad->rc4c,
1876 "%s exists, not forcing update\n", path);
1877 goto out_unmap;
1878 }
1879 /*
1880 * We won't recalculate the audio format info and the chunk table if
1881 * there is a hash sister and FORCE was not given.
1882 */
1883 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1884 ret = compute_afhi(path, map.data, map.size, fd, &afhi);
1885 if (ret < 0)
1886 goto out_unmap;
1887 format_num = ret;
1888 afhi_ptr = &afhi;
1889 }
1890 munmap(map.data, map.size);
1891 close(fd);
1892 if (pad->flags & ADD_FLAG_VERBOSE) {
1893 send_ret = rc4_send_va_buffer(pad->rc4c, "adding %s\n", path);
1894 if (send_ret < 0)
1895 goto out_free;
1896 }
1897 save_add_callback_buffer(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1898 /* Ask afs to consider this entry for adding. */
1899 ret = send_callback_request(com_add_callback, &obj, rc4_send_result, pad->rc4c);
1900 goto out_free;
1901
1902 out_unmap:
1903 close(fd);
1904 munmap(map.data, map.size);
1905 out_free:
1906 if (ret < 0 && send_ret >= 0)
1907 send_ret = rc4_send_va_buffer(pad->rc4c,
1908 "failed to add %s (%s)\n", path, para_strerror(-ret));
1909 free(obj.data);
1910 if (afhi_ptr) {
1911 free(afhi_ptr->chunk_table);
1912 free(afhi_ptr->techinfo);
1913 free(afhi_ptr->tags.artist);
1914 free(afhi_ptr->tags.title);
1915 free(afhi_ptr->tags.year);
1916 free(afhi_ptr->tags.album);
1917 free(afhi_ptr->tags.comment);
1918 }
1919 /* Stop adding files only on send errors. */
1920 return send_ret;
1921 }
1922
1923 int com_add(struct rc4_context *rc4c, int argc, char * const * const argv)
1924 {
1925 int i, ret;
1926 struct private_add_data pad = {.rc4c = rc4c, .flags = 0};
1927 struct stat statbuf;
1928
1929 for (i = 1; i < argc; i++) {
1930 const char *arg = argv[i];
1931 if (arg[0] != '-')
1932 break;
1933 if (!strcmp(arg, "--")) {
1934 i++;
1935 break;
1936 }
1937 if (!strcmp(arg, "-a")) {
1938 pad.flags |= ADD_FLAG_ALL;
1939 continue;
1940 }
1941 if (!strcmp(arg, "-l")) {
1942 pad.flags |= ADD_FLAG_LAZY;
1943 continue;
1944 }
1945 if (!strcmp(arg, "-f")) {
1946 pad.flags |= ADD_FLAG_FORCE;
1947 continue;
1948 }
1949 if (!strcmp(arg, "-v")) {
1950 pad.flags |= ADD_FLAG_VERBOSE;
1951 continue;
1952 }
1953 }
1954 if (argc <= i)
1955 return -E_AFT_SYNTAX;
1956 for (; i < argc; i++) {
1957 char *path;
1958 ret = verify_path(argv[i], &path);
1959 if (ret < 0) {
1960 ret = rc4_send_va_buffer(rc4c, "%s: %s\n", argv[i],
1961 para_strerror(-ret));
1962 if (ret < 0)
1963 return ret;
1964 continue;
1965 }
1966 ret = stat(path, &statbuf);
1967 if (ret < 0) {
1968 ret = rc4_send_va_buffer(rc4c, "failed to stat %s (%s)\n", path,
1969 strerror(errno));
1970 free(path);
1971 if (ret < 0)
1972 return ret;
1973 continue;
1974 }
1975 if (S_ISDIR(statbuf.st_mode))
1976 ret = for_each_file_in_dir(path, add_one_audio_file,
1977 &pad);
1978 else
1979 ret = add_one_audio_file(path, &pad);
1980 if (ret < 0) {
1981 rc4_send_va_buffer(rc4c, "%s: %s\n", path, para_strerror(-ret));
1982 free(path);
1983 return ret;
1984 }
1985 free(path);
1986 }
1987 return 1;
1988
1989 }
1990
1991 /**
1992 * Flags used by the touch command.
1993 *
1994 * \sa com_touch().
1995 */
1996 enum touch_flags {
1997 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1998 TOUCH_FLAG_FNM_PATHNAME = 1,
1999 /** Activates verbose mode. */
2000 TOUCH_FLAG_VERBOSE = 2
2001 };
2002
2003 /** Options used by com_touch(). */
2004 struct com_touch_options {
2005 /** New num_played value. */
2006 int32_t num_played;
2007 /** New last played count. */
2008 int64_t last_played;
2009 /** New lyrics id. */
2010 int32_t lyrics_id;
2011 /** New image id. */
2012 int32_t image_id;
2013 /** New amplification value. */
2014 int32_t amp;
2015 /** Command line flags (see \ref touch_flags). */
2016 unsigned flags;
2017 };
2018
2019 /** Data passed to the action handler of com_touch(). */
2020 struct touch_action_data {
2021 /** Command line options (see \ref com_touch_options). */
2022 struct com_touch_options *cto;
2023 /** Message buffer. */
2024 struct para_buffer pb;
2025 /** How many audio files matched the given pattern. */
2026 unsigned num_matches;
2027 };
2028
2029 static int touch_audio_file(__a_unused struct osl_table *table,
2030 struct osl_row *row, const char *name, void *data)
2031 {
2032 struct touch_action_data *tad = data;
2033 struct osl_object obj;
2034 struct afs_info old_afsi, new_afsi;
2035 int ret, no_options = tad->cto->num_played < 0 && tad->cto->last_played < 0 &&
2036 tad->cto->lyrics_id < 0 && tad->cto->image_id < 0 && tad->cto->amp < 0;
2037 struct afsi_change_event_data aced;
2038
2039 ret = get_afsi_object_of_row(row, &obj);
2040 if (ret < 0)
2041 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2042 ret = load_afsi(&old_afsi, &obj);
2043 if (ret < 0)
2044 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2045 new_afsi = old_afsi;
2046 if (no_options) {
2047 new_afsi.num_played++;
2048 new_afsi.last_played = time(NULL);
2049 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2050 ret = para_printf(&tad->pb, "%s: num_played = %u, "
2051 "last_played = now()\n", name,
2052 new_afsi.num_played);
2053 if (ret < 0)
2054 return ret;
2055 }
2056 } else {
2057 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2058 ret = para_printf(&tad->pb, "touching %s\n", name);
2059 if (ret < 0)
2060 return ret;
2061 }
2062 if (tad->cto->lyrics_id >= 0)
2063 new_afsi.lyrics_id = tad->cto->lyrics_id;
2064 if (tad->cto->image_id >= 0)
2065 new_afsi.image_id = tad->cto->image_id;
2066 if (tad->cto->num_played >= 0)
2067 new_afsi.num_played = tad->cto->num_played;
2068 if (tad->cto->last_played >= 0)
2069 new_afsi.last_played = tad->cto->last_played;
2070 if (tad->cto->amp >= 0)
2071 new_afsi.amp = tad->cto->amp;
2072 }
2073 tad->num_matches++;
2074 save_afsi(&new_afsi, &obj); /* in-place update */
2075 aced.aft_row = row;
2076 aced.old_afsi = &old_afsi;
2077 afs_event(AFSI_CHANGE, &tad->pb, &aced);
2078 return 1;
2079 }
2080
2081 static void com_touch_callback(int fd, const struct osl_object *query)
2082 {
2083 struct touch_action_data tad = {.cto = query->data,
2084 .pb = {
2085 .max_size = SHMMAX,
2086 .private_data = &fd,
2087 .max_size_handler = pass_buffer_as_shm
2088 }
2089 };
2090 int ret, ret2 = 0;
2091 struct pattern_match_data pmd = {
2092 .table = audio_file_table,
2093 .loop_col_num = AFTCOL_HASH,
2094 .match_col_num = AFTCOL_PATH,
2095 .patterns = {.data = (char *)query->data + sizeof(*tad.cto),
2096 .size = query->size - sizeof(*tad.cto)},
2097 .data = &tad,
2098 .action = touch_audio_file
2099 };
2100 if (tad.cto->flags & TOUCH_FLAG_FNM_PATHNAME)
2101 pmd.fnmatch_flags |= FNM_PATHNAME;
2102 ret = for_each_matching_row(&pmd);
2103 if (ret < 0)
2104 ret2 = para_printf(&tad.pb, "%s\n", para_strerror(-ret));
2105 else
2106 if (!tad.num_matches)
2107 ret2 = para_printf(&tad.pb, "no matches\n");
2108 if (ret2 >= 0 && tad.pb.offset)
2109 pass_buffer_as_shm(tad.pb.buf, tad.pb.offset, &fd);
2110 free(tad.pb.buf);
2111 }
2112
2113 int com_touch(struct rc4_context *rc4c, int argc, char * const * const argv)
2114 {
2115 struct com_touch_options cto = {
2116 .num_played = -1,
2117 .last_played = -1,
2118 .lyrics_id = -1,
2119 .image_id = -1,
2120 .amp = -1,
2121 };
2122 struct osl_object query = {.data = &cto, .size = sizeof(cto)};
2123 int i, ret;
2124
2125
2126 for (i = 1; i < argc; i++) {
2127 const char *arg = argv[i];
2128 if (arg[0] != '-')
2129 break;
2130 if (!strcmp(arg, "--")) {
2131 i++;
2132 break;
2133 }
2134 if (!strncmp(arg, "-n=", 3)) {
2135 ret = para_atoi32(arg + 3, &cto.num_played);
2136 if (ret < 0)
2137 return ret;
2138 continue;
2139 }
2140 if (!strncmp(arg, "-l=", 3)) {
2141 ret = para_atoi64(arg + 3, &cto.last_played);
2142 if (ret < 0)
2143 return ret;
2144 continue;
2145 }
2146 if (!strncmp(arg, "-y=", 3)) {
2147 ret = para_atoi32(arg + 3, &cto.lyrics_id);
2148 if (ret < 0)
2149 return ret;
2150 continue;
2151 }
2152 if (!strncmp(arg, "-i=", 3)) {
2153 ret = para_atoi32(arg + 3, &cto.image_id);
2154 if (ret < 0)
2155 return ret;
2156 continue;
2157 }
2158 if (!strncmp(arg, "-a=", 3)) {
2159 int32_t val;
2160 ret = para_atoi32(arg + 3, &val);
2161 if (ret < 0)
2162 return ret;
2163 if (val < 0 || val > 255)
2164 return -ERRNO_TO_PARA_ERROR(EINVAL);
2165 cto.amp = val;
2166 continue;
2167 }
2168 if (!strcmp(arg, "-p")) {
2169 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
2170 continue;
2171 }
2172 if (!strcmp(arg, "-v")) {
2173 cto.flags |= TOUCH_FLAG_VERBOSE;
2174 continue;
2175 }
2176 break; /* non-option starting with dash */
2177 }
2178 if (i >= argc)
2179 return -E_AFT_SYNTAX;
2180 ret = send_option_arg_callback_request(&query, argc - i,
2181 argv + i, com_touch_callback, rc4_send_result, rc4c);
2182 if (ret < 0)
2183 rc4_send_va_buffer(rc4c, "%s\n", para_strerror(-ret));
2184 return ret;
2185 }
2186
2187 /** Flags for com_rm(). */
2188 enum rm_flags {
2189 /** -v */
2190 RM_FLAG_VERBOSE = 1,
2191 /** -f */
2192 RM_FLAG_FORCE = 2,
2193 /** -p */
2194 RM_FLAG_FNM_PATHNAME = 4
2195 };
2196
2197 /** Data passed to the action handler of com_rm(). */
2198 struct com_rm_action_data {
2199 /** Command line flags ((see \ref rm_flags). */
2200 uint32_t flags;
2201 /** Message buffer. */
2202 struct para_buffer pb;
2203 /** Number of audio files removed. */
2204 unsigned num_removed;
2205 };
2206
2207 static int remove_audio_file(__a_unused struct osl_table *table,
2208 struct osl_row *row, const char *name, void *data)
2209 {
2210 struct com_rm_action_data *crd = data;
2211 int ret;
2212
2213 if (crd->flags & RM_FLAG_VERBOSE) {
2214 ret = para_printf(&crd->pb, "removing %s\n", name);
2215 if (ret < 0)
2216 return ret;
2217 }
2218 afs_event(AUDIO_FILE_REMOVE, &crd->pb, row);
2219 ret = osl(osl_del_row(audio_file_table, row));
2220 if (ret < 0)
2221 para_printf(&crd->pb, "%s: %s\n", name, para_strerror(-ret));
2222 else
2223 crd->num_removed++;
2224 return ret;
2225 }
2226
2227 static void com_rm_callback(int fd, const struct osl_object *query)
2228 {
2229 struct com_rm_action_data crd = {.flags = *(uint32_t *)query->data,
2230 .pb = {
2231 .max_size = SHMMAX,
2232 .private_data = &fd,
2233 .max_size_handler = pass_buffer_as_shm
2234 }
2235 };
2236 int ret;
2237 struct pattern_match_data pmd = {
2238 .table = audio_file_table,
2239 .loop_col_num = AFTCOL_HASH,
2240 .match_col_num = AFTCOL_PATH,
2241 .patterns = {.data = (char *)query->data + sizeof(uint32_t),
2242 .size = query->size - sizeof(uint32_t)},
2243 .data = &crd,
2244 .action = remove_audio_file
2245 };
2246 if (crd.flags & RM_FLAG_FNM_PATHNAME)
2247 pmd.fnmatch_flags |= FNM_PATHNAME;
2248 ret = for_each_matching_row(&pmd);
2249 if (ret < 0) {
2250 para_printf(&crd.pb, "%s\n", para_strerror(-ret));
2251 return;
2252 }
2253 if (!crd.num_removed && !(crd.flags & RM_FLAG_FORCE))
2254 ret = para_printf(&crd.pb, "no matches -- nothing removed\n");
2255 else {
2256 if (crd.flags & RM_FLAG_VERBOSE)
2257 ret = para_printf(&crd.pb, "removed %u files\n", crd.num_removed);
2258 }
2259 if (ret >= 0 && crd.pb.offset)
2260 pass_buffer_as_shm(crd.pb.buf, crd.pb.offset, &fd);
2261 free(crd.pb.buf);
2262 }
2263
2264 /* TODO options: -r (recursive) */
2265 int com_rm(struct rc4_context *rc4c, int argc, char * const * const argv)
2266 {
2267 uint32_t flags = 0;
2268 struct osl_object query = {.data = &flags, .size = sizeof(flags)};
2269 int i, ret;
2270
2271 for (i = 1; i < argc; i++) {
2272 const char *arg = argv[i];
2273 if (arg[0] != '-')
2274 break;
2275 if (!strcmp(arg, "--")) {
2276 i++;
2277 break;
2278 }
2279 if (!strcmp(arg, "-f")) {
2280 flags |= RM_FLAG_FORCE;
2281 continue;
2282 }
2283 if (!strcmp(arg, "-p")) {
2284 flags |= RM_FLAG_FNM_PATHNAME;
2285 continue;
2286 }
2287 if (!strcmp(arg, "-v")) {
2288 flags |= RM_FLAG_VERBOSE;
2289 continue;
2290 }
2291 break;
2292 }
2293 if (i >= argc)
2294 return -E_AFT_SYNTAX;
2295 ret = send_option_arg_callback_request(&query, argc - i, argv + i,
2296 com_rm_callback, rc4_send_result, rc4c);
2297 if (ret < 0)
2298 rc4_send_va_buffer(rc4c, "%s\n", para_strerror(-ret));
2299 return ret;
2300 }
2301
2302 /**
2303 * Flags used by the cpsi command.
2304 *
2305 * \sa com_cpsi().
2306 */
2307 enum cpsi_flags {
2308 /** Whether the lyrics id should be copied. */
2309 CPSI_FLAG_COPY_LYRICS_ID = 1,
2310 /** Whether the image id should be copied. */
2311 CPSI_FLAG_COPY_IMAGE_ID = 2,
2312 /** Whether the lastplayed time should be copied. */
2313 CPSI_FLAG_COPY_LASTPLAYED = 4,
2314 /** Whether the numplayed count should be copied. */
2315 CPSI_FLAG_COPY_NUMPLAYED = 8,
2316 /** Whether the attributes should be copied. */
2317 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2318 /** Activates verbose mode. */
2319 CPSI_FLAG_VERBOSE = 32,
2320 };
2321
2322 /** Data passed to the action handler of com_cpsi(). */
2323 struct cpsi_action_data {
2324 /** command line flags (see \ref cpsi_flags). */
2325 unsigned flags;
2326 /** Number of audio files changed. */
2327 unsigned num_copied;
2328 /** Message buffer. */
2329 struct para_buffer pb;
2330 /** Values are copied from here. */
2331 struct afs_info source_afsi;
2332 };
2333
2334 static int copy_selector_info(__a_unused struct osl_table *table,
2335 struct osl_row *row, const char *name, void *data)
2336 {
2337 struct cpsi_action_data *cad = data;
2338 struct osl_object target_afsi_obj;
2339 int ret;
2340 struct afs_info old_afsi, target_afsi;
2341 struct afsi_change_event_data aced;
2342
2343 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2344 if (ret < 0)
2345 return ret;
2346 load_afsi(&target_afsi, &target_afsi_obj);
2347 old_afsi = target_afsi;
2348 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2349 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2350 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2351 target_afsi.image_id = cad->source_afsi.image_id;
2352 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2353 target_afsi.last_played = cad->source_afsi.last_played;
2354 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2355 target_afsi.num_played = cad->source_afsi.num_played;
2356 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2357 target_afsi.attributes = cad->source_afsi.attributes;
2358 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2359 cad->num_copied++;
2360 if (cad->flags & CPSI_FLAG_VERBOSE) {
2361 ret = para_printf(&cad->pb, "copied afsi to %s\n", name);
2362 if (ret < 0)
2363 return ret;
2364 }
2365 aced.aft_row = row;
2366 aced.old_afsi = &old_afsi;
2367 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2368 return 1;
2369 }
2370
2371 static void com_cpsi_callback(int fd, const struct osl_object *query)
2372 {
2373 struct cpsi_action_data cad = {
2374 .flags = *(unsigned *)query->data,
2375 .pb = {
2376 .max_size = SHMMAX,
2377 .private_data = &fd,
2378 .max_size_handler = pass_buffer_as_shm
2379 }
2380 };
2381 int ret;
2382 char *source_path = (char *)query->data + sizeof(cad.flags);
2383 struct pattern_match_data pmd = {
2384 .table = audio_file_table,
2385 .loop_col_num = AFTCOL_HASH,
2386 .match_col_num = AFTCOL_PATH,
2387 .patterns = {.data = source_path + strlen(source_path) + 1,
2388 .size = query->size - sizeof(cad.flags)
2389 - strlen(source_path) - 1},
2390 .data = &cad,
2391 .action = copy_selector_info
2392 };
2393
2394 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2395 if (ret < 0)
2396 goto out;
2397 ret = for_each_matching_row(&pmd);
2398 out:
2399 if (ret < 0)
2400 para_printf(&cad.pb, "%s\n", para_strerror(-ret));
2401 else if (cad.flags & CPSI_FLAG_VERBOSE) {
2402 if (cad.num_copied)
2403 para_printf(&cad.pb, "copied requested afsi from %s "
2404 "to %u files\n", source_path, cad.num_copied);
2405 else
2406 para_printf(&cad.pb, "nothing copied\n");
2407 }
2408 if (cad.pb.offset)
2409 pass_buffer_as_shm(cad.pb.buf, cad.pb.offset, &fd);
2410 free(cad.pb.buf);
2411 }
2412
2413 int com_cpsi(struct rc4_context *rc4c, int argc, char * const * const argv)
2414 {
2415 unsigned flags = 0;
2416 int i, ret;
2417 struct osl_object options = {.data = &flags, .size = sizeof(flags)};
2418
2419 for (i = 1; i < argc; i++) {
2420 const char *arg = argv[i];
2421 if (arg[0] != '-')
2422 break;
2423 if (!strcmp(arg, "--")) {
2424 i++;
2425 break;
2426 }
2427 if (!strcmp(arg, "-y")) {
2428 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2429 continue;
2430 }
2431 if (!strcmp(arg, "-i")) {
2432 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2433 continue;
2434 }
2435 if (!strcmp(arg, "-l")) {
2436 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2437 continue;
2438 }
2439 if (!strcmp(arg, "-n")) {
2440 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2441 continue;
2442 }
2443 if (!strcmp(arg, "-a")) {
2444 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2445 continue;
2446 }
2447 if (!strcmp(arg, "-v")) {
2448 flags |= CPSI_FLAG_VERBOSE;
2449 continue;
2450 }
2451 break;
2452 }
2453 if (i + 1 >= argc) /* need at least source file and pattern */
2454 return -E_AFT_SYNTAX;
2455 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2456 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2457 ret = send_option_arg_callback_request(&options, argc - i, argv + i,
2458 com_cpsi_callback, rc4_send_result, rc4c);
2459 if (ret < 0)
2460 rc4_send_va_buffer(rc4c, "%s\n", para_strerror(-ret));
2461 return ret;
2462 }
2463
2464 static void afs_stat_callback(int fd, const struct osl_object *query)
2465 {
2466 int *parser_friendly = query->data;
2467 char *buf = *parser_friendly?
2468 parser_friendly_status_items : status_items;
2469
2470 if (!buf)
2471 return;
2472 pass_buffer_as_shm(buf, strlen(buf), &fd);
2473 }
2474
2475 /**
2476 * Get the current afs status items from the afs process and send it using RC4.
2477 *
2478 * \param rc4c The rc4 context for data encryption.
2479 * \param parser_friendly Whether parser-friendly output format should be used.
2480 *
2481 * As the contents of the afs status items change in time and the command
2482 * handler only has a COW version created at fork time, it can not send
2483 * up-to-date afs status items directly. Therefore the usual callback mechanism
2484 * is used to pass the status items from the afs process to the command handler
2485 * via a shared memory area and a pipe.
2486 */
2487 int send_afs_status(struct rc4_context *rc4c, int parser_friendly)
2488 {
2489 struct osl_object query = {.data = &parser_friendly,
2490 .size = sizeof(parser_friendly)};
2491
2492 return send_callback_request(afs_stat_callback, &query, rc4_send_result, rc4c);
2493 }
2494
2495 /* TODO: optionally fix problems by removing offending rows */
2496 static int check_audio_file(struct osl_row *row, void *data)
2497 {
2498 char *path;
2499 struct para_buffer *pb = data;
2500 struct stat statbuf;
2501 int ret = get_audio_file_path_of_row(row, &path);
2502 struct afs_info afsi;
2503 char *blob_name;
2504
2505 if (ret < 0)
2506 return para_printf(pb, "%s\n", para_strerror(-ret));
2507 if (stat(path, &statbuf) < 0) {
2508 ret = para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2509 if (ret < 0)
2510 return ret;
2511 } else {
2512 if (!S_ISREG(statbuf.st_mode)) {
2513 ret = para_printf(pb, "%s: not a regular file\n", path);
2514 if (ret < 0)
2515 return ret;
2516 }
2517 }
2518 ret = get_afsi_of_row(row, &afsi);
2519 if (ret < 0)
2520 return para_printf(pb, "%s: %s\n", path, para_strerror(-ret));
2521 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2522 if (ret < 0) {
2523 ret = para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2524 para_strerror(-ret));
2525 if (ret < 0)
2526 return ret;
2527 }
2528 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2529 if (ret < 0)
2530 ret = para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2531 para_strerror(-ret));
2532 return ret;
2533 }
2534
2535 /**
2536 * Check the audio file table for inconsistencies.
2537 *
2538 * \param fd The afs socket.
2539 * \param query Unused.
2540 *
2541 * This function always succeeds.
2542 *
2543 * \sa com_check().
2544 */
2545 void aft_check_callback(int fd, __a_unused const struct osl_object *query)
2546 {
2547 struct para_buffer pb = {
2548 .max_size = SHMMAX,
2549 .private_data = &fd,
2550 .max_size_handler = pass_buffer_as_shm
2551 };
2552 int ret = para_printf(&pb, "checking audio file table...\n");
2553
2554 if (ret < 0)
2555 return;
2556 audio_file_loop(&pb, check_audio_file);
2557 if (pb.offset)
2558 pass_buffer_as_shm(pb.buf, pb.offset, &fd);
2559 free(pb.buf);
2560 }
2561
2562 /**
2563 * Close the audio file table.
2564 *
2565 * \param flags Usual flags that are passed to osl_close_table().
2566 *
2567 * \sa osl_close_table().
2568 */
2569 static void aft_close(void)
2570 {
2571 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2572 audio_file_table = NULL;
2573 free(status_items);
2574 status_items = NULL;
2575 free(parser_friendly_status_items);
2576 parser_friendly_status_items = NULL;
2577 }
2578
2579 /**
2580 * Open the audio file table.
2581 *
2582 * \param dir The database directory.
2583 *
2584 * \return Standard.
2585 *
2586 * \sa osl_open_table().
2587 */
2588 static int aft_open(const char *dir)
2589 {
2590 int ret;
2591
2592 audio_file_table_desc.dir = dir;
2593 ret = osl(osl_open_table(&audio_file_table_desc, &audio_file_table));
2594 if (ret >= 0) {
2595 unsigned num;
2596 osl_get_num_rows(audio_file_table, &num);
2597 PARA_INFO_LOG("audio file table contains %d files\n", num);
2598 return ret;
2599 }
2600 PARA_INFO_LOG("failed to open audio file table\n");
2601 audio_file_table = NULL;
2602 if (ret >= 0 || ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_NOENT))
2603 return 1;
2604 return ret;
2605 }
2606
2607 static int aft_create(const char *dir)
2608 {
2609 audio_file_table_desc.dir = dir;
2610 return osl(osl_create_table(&audio_file_table_desc));
2611 }
2612
2613 static int clear_attribute(struct osl_row *row, void *data)
2614 {
2615 struct rmatt_event_data *red = data;
2616 struct afs_info afsi;
2617 struct osl_object obj;
2618 int ret = get_afsi_object_of_row(row, &obj);
2619 uint64_t mask = ~(1ULL << red->bitnum);
2620
2621 if (ret < 0)
2622 return ret;
2623 ret = load_afsi(&afsi, &obj);
2624 if (ret < 0)
2625 return ret;
2626 afsi.attributes &= mask;
2627 save_afsi(&afsi, &obj);
2628 return 1;
2629 }
2630
2631 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2632 void *data)
2633 {
2634 int ret;
2635
2636 switch(event) {
2637 case ATTRIBUTE_REMOVE: {
2638 const struct rmatt_event_data *red = data;
2639 ret = para_printf(pb, "clearing attribute %s (bit %u) from all "
2640 "entries in the audio file table\n", red->name,
2641 red->bitnum);
2642 if (ret < 0)
2643 return ret;
2644 return audio_file_loop(data, clear_attribute);
2645 }
2646 default:
2647 return 1;
2648 }
2649 }
2650
2651 /**
2652 * Initialize the audio file table.
2653 *
2654 * \param t Pointer to the structure to be initialized.
2655 */
2656 void aft_init(struct afs_table *t)
2657 {
2658 t->open = aft_open;
2659 t->close = aft_close;
2660 t->create = aft_create;
2661 t->event_handler = aft_event_handler;
2662 }