net.c: Remove unnecessary crypto includes.
[paraslash.git] / aft.c
1 /*
2 * Copyright (C) 2007-2011 Andre Noll <maan@systemlinux.org>
3 *
4 * Licensed under the GPL v2. For licencing details see COPYING.
5 */
6
7 /** \file aft.c Audio file table functions. */
8
9 #include <regex.h>
10 #include <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 /** Was: Location of the audio file header. */
348 AFHI_UNUSED1_OFFSET = 12,
349 /* Length of the audio file header. Zero means: No header. */
350 AFHI_HEADER_LEN_OFFSET = 16,
351 /** The total number of chunks (4 bytes). */
352 CHUNKS_TOTAL_OFFSET = 20,
353 /** The length of the audio file header (4 bytes). */
354 HEADER_LEN_OFFSET = 24,
355 /** Was: The start of the audio file header (4 bytes). */
356 AFHI_UNUSED2_OFFSET = 28,
357 /** The seconds part of the chunk time (4 bytes). */
358 CHUNK_TV_TV_SEC_OFFSET = 32,
359 /** The microseconds part of the chunk time (4 bytes). */
360 CHUNK_TV_TV_USEC_OFFSET = 36,
361 /** Number of channels is stored here. (1 byte) */
362 AFHI_CHANNELS_OFFSET = 40,
363 /** The tag info position. */
364 AFHI_INFO_STRING_OFFSET = 41,
365 /** Minimal on-disk size of a valid afhi struct. */
366 MIN_AFHI_SIZE = 47, /* at least 6 null bytes for techinfo/tags */
367 };
368
369 static unsigned sizeof_afhi_buf(const struct afh_info *afhi)
370 {
371 if (!afhi)
372 return 0;
373 return MIN_AFHI_SIZE
374 + strlen(afhi->techinfo)
375 + strlen(afhi->tags.artist)
376 + strlen(afhi->tags.title)
377 + strlen(afhi->tags.year)
378 + strlen(afhi->tags.album)
379 + strlen(afhi->tags.comment);
380 }
381
382 static void save_afhi(struct afh_info *afhi, char *buf)
383 {
384 char *p;
385
386 if (!afhi)
387 return;
388 write_u32(buf + AFHI_SECONDS_TOTAL_OFFSET, afhi->seconds_total);
389 write_u32(buf + AFHI_BITRATE_OFFSET, afhi->bitrate);
390 write_u32(buf + AFHI_FREQUENCY_OFFSET, afhi->frequency);
391 write_u32(buf + AFHI_UNUSED1_OFFSET, 0);
392 write_u32(buf + AFHI_HEADER_LEN_OFFSET, afhi->header_len);
393 write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
394 write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
395 write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
396 write_u32(buf + AFHI_UNUSED2_OFFSET, 0);
397 write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
398 write_u32(buf + CHUNK_TV_TV_USEC_OFFSET, afhi->chunk_tv.tv_usec);
399 p = buf + AFHI_INFO_STRING_OFFSET;
400 /* The sprintf's below are OK as our caller made sure that buf is large enough */
401 p += sprintf(p, "%s", afhi->techinfo) + 1;
402 p += sprintf(p, "%s", afhi->tags.artist) + 1;
403 p += sprintf(p, "%s", afhi->tags.title) + 1;
404 p += sprintf(p, "%s", afhi->tags.year) + 1;
405 p += sprintf(p, "%s", afhi->tags.album) + 1;
406 sprintf(p, "%s", afhi->tags.comment);
407 }
408
409 static void load_afhi(const char *buf, struct afh_info *afhi)
410 {
411 afhi->seconds_total = read_u32(buf + AFHI_SECONDS_TOTAL_OFFSET);
412 afhi->bitrate = read_u32(buf + AFHI_BITRATE_OFFSET);
413 afhi->frequency = read_u32(buf + AFHI_FREQUENCY_OFFSET);
414 afhi->header_len = read_u32(buf + AFHI_HEADER_LEN_OFFSET);
415 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
416 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
417 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
418 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
419 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC_OFFSET);
420 afhi->techinfo = (char *)buf + AFHI_INFO_STRING_OFFSET;
421 afhi->tags.artist = afhi->techinfo + strlen(afhi->techinfo) + 1;
422 afhi->tags.title = afhi->tags.artist + strlen(afhi->tags.artist) + 1;
423 afhi->tags.year = afhi->tags.title + strlen(afhi->tags.title) + 1;
424 afhi->tags.album = afhi->tags.year + strlen(afhi->tags.year) + 1;
425 afhi->tags.comment = afhi->tags.album + strlen(afhi->tags.album) + 1;
426 }
427
428 static unsigned sizeof_chunk_table(struct afh_info *afhi)
429 {
430 if (!afhi)
431 return 0;
432 return 4 * (afhi->chunks_total + 1);
433 }
434
435 static uint32_t save_chunk_table(struct afh_info *afhi, char *buf)
436 {
437 int i;
438 uint32_t max = 0, old = 0;
439
440 for (i = 0; i <= afhi->chunks_total; i++) {
441 uint32_t val = afhi->chunk_table[i];
442 write_u32(buf + 4 * i, val);
443 /*
444 * If the first chunk is the header, do not consider it for the
445 * calculation of the largest chunk size.
446 */
447 if (i == 0 || (i == 1 && afhi->header_len > 0)) {
448 old = val;
449 continue;
450 }
451 max = PARA_MAX(max, val - old);
452 old = val;
453 }
454 return max;
455 }
456
457 static void load_chunk_table(struct afh_info *afhi, char *buf)
458 {
459 int i;
460
461 afhi->chunk_table = para_malloc(sizeof_chunk_table(afhi));
462 for (i = 0; i <= afhi->chunks_total; i++)
463 afhi->chunk_table[i] = read_u32(buf + 4 * i);
464 }
465
466 /**
467 * Get the row of the audio file table corresponding to the given path.
468 *
469 * \param path The full path of the audio file.
470 * \param row Result pointer.
471 *
472 * \return Standard.
473 */
474 int aft_get_row_of_path(const char *path, struct osl_row **row)
475 {
476 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
477
478 return osl(osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row));
479 }
480
481 /**
482 * Get the row of the audio file table corresponding to the given hash value.
483 *
484 * \param hash The hash value of the desired audio file.
485 * \param row Result pointer.
486 *
487 * \return Standard.
488 */
489 static int aft_get_row_of_hash(HASH_TYPE *hash, struct osl_row **row)
490 {
491 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
492 return osl(osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row));
493 }
494
495 /**
496 * Get the osl object holding the audio file selector info of a row.
497 *
498 * \param row Pointer to a row in the audio file table.
499 * \param obj Result pointer.
500 *
501 * \return Standard.
502 */
503 int get_afsi_object_of_row(const struct osl_row *row, struct osl_object *obj)
504 {
505 return osl(osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj));
506 }
507
508 /**
509 * Get the osl object holding the audio file selector info, given a path.
510 *
511 *
512 * \param path The full path of the audio file.
513 * \param obj Result pointer.
514 *
515 * \return Positive on success, negative on errors.
516 */
517 static int get_afsi_object_of_path(const char *path, struct osl_object *obj)
518 {
519 struct osl_row *row;
520 int ret = aft_get_row_of_path(path, &row);
521 if (ret < 0)
522 return ret;
523 return get_afsi_object_of_row(row, obj);
524 }
525
526 /**
527 * Get the audio file selector info, given a row of the audio file table.
528 *
529 * \param row Pointer to a row in the audio file table.
530 * \param afsi Result pointer.
531 *
532 * \return Positive on success, negative on errors.
533 */
534 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
535 {
536 struct osl_object obj;
537 int ret = get_afsi_object_of_row(row, &obj);
538 if (ret < 0)
539 return ret;
540 return load_afsi(afsi, &obj);
541 }
542
543 /**
544 * Get the audio file selector info, given the path of an audio table.
545 *
546 * \param path The full path of the audio file.
547 * \param afsi Result pointer.
548 *
549 * \return Positive on success, negative on errors.
550 */
551 int get_afsi_of_path(const char *path, struct afs_info *afsi)
552 {
553 struct osl_object obj;
554 int ret = get_afsi_object_of_path(path, &obj);
555 if (ret < 0)
556 return ret;
557 return load_afsi(afsi, &obj);
558 }
559
560 /**
561 * Get the path of an audio file, given a row of the audio file table.
562 *
563 * \param row Pointer to a row in the audio file table.
564 * \param path Result pointer.
565 *
566 * The result is a pointer to mmapped data. The caller must not attempt
567 * to free it.
568 *
569 * \return Standard.
570 */
571 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
572 {
573 struct osl_object path_obj;
574 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_PATH,
575 &path_obj));
576 if (ret < 0)
577 return ret;
578 *path = path_obj.data;
579 return 1;
580 }
581
582 /**
583 * Get the object containing the hash value of an audio file, given a row.
584 *
585 * \param row Pointer to a row of the audio file table.
586 * \param obj Result pointer.
587 *
588 * \return The return value of the underlying call to osl_get_object().
589 *
590 * \sa get_hash_of_row().
591 */
592 static int get_hash_object_of_aft_row(const struct osl_row *row,
593 struct osl_object *obj)
594 {
595 return osl(osl_get_object(audio_file_table, row, AFTCOL_HASH, obj));
596 }
597
598 /**
599 * Get the hash value of an audio file, given a row of the audio file table.
600 *
601 * \param row Pointer to a row of the audio file table.
602 * \param hash Result pointer.
603 *
604 * \a hash points to mapped data and must not be freed by the caller.
605 *
606 * \return The return value of the underlying call to
607 * get_hash_object_of_aft_row().
608 */
609 static int get_hash_of_row(const struct osl_row *row, HASH_TYPE **hash)
610 {
611 struct osl_object obj;
612 int ret = get_hash_object_of_aft_row(row, &obj);
613
614 if (ret < 0)
615 return ret;
616 *hash = obj.data;
617 return 1;
618 }
619
620 /**
621 * Get the audio format handler info, given a row of the audio file table.
622 *
623 * \param row Pointer to a row of the audio file table.
624 * \param afhi Result pointer.
625 *
626 * \return The return value of the underlying call to osl_get_object().
627 *
628 * \sa get_chunk_table_of_row().
629 */
630 int get_afhi_of_row(const struct osl_row *row, struct afh_info *afhi)
631 {
632 struct osl_object obj;
633 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_AFHI,
634 &obj));
635 if (ret < 0)
636 return ret;
637 load_afhi(obj.data, afhi);
638 return 1;
639 }
640
641 /* returns shmid on success */
642 static int save_afd(struct audio_file_data *afd)
643 {
644 size_t size = sizeof(*afd) + sizeof_chunk_table(&afd->afhi);
645 int shmid, ret = shm_new(size);
646 void *shm_afd;
647 char *buf;
648
649 if (ret < 0)
650 return ret;
651 shmid = ret;
652 ret = shm_attach(shmid, ATTACH_RW, &shm_afd);
653 if (ret < 0)
654 goto err;
655 buf = shm_afd;
656 buf += sizeof(*afd);
657 afd->max_chunk_size = save_chunk_table(&afd->afhi, buf);
658 *(struct audio_file_data *)shm_afd = *afd;
659 shm_detach(shm_afd);
660 return shmid;
661 err:
662 shm_destroy(shmid);
663 return ret;
664 }
665
666 /**
667 * Extract a afd stored in a shared memory area.
668 *
669 * Attach the shared memory area given by \a shmid, load the audio file data
670 * stored therein and detach the area afterwards. Called by vss, after
671 * receiving a positive response to the request for the next audio file.
672 +
673 * \param shmid The identifier of the shared memory area containing the afd.
674 * \param afd Result pointer.
675 *
676 * \return Standard.
677 */
678 int load_afd(int shmid, struct audio_file_data *afd)
679 {
680 void *shm_afd;
681 char *buf;
682 int ret;
683
684 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
685 if (ret < 0)
686 return ret;
687 *afd = *(struct audio_file_data *)shm_afd;
688 buf = shm_afd;
689 buf += sizeof(*afd);
690 load_chunk_table(&afd->afhi, buf);
691 shm_detach(shm_afd);
692 return 1;
693 }
694
695 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
696 time_t current_time, enum ls_listing_mode lm)
697 {
698 struct tm t;
699
700 if (!localtime_r((time_t *)seconds, &t))
701 return -E_LOCALTIME;
702 if (lm == LS_MODE_MBOX) {
703 if (!strftime(buf, size, "%c", &t))
704 return -E_STRFTIME;
705 return 1;
706 }
707 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
708 if (!strftime(buf, size, "%b %e %k:%M", &t))
709 return -E_STRFTIME;
710 return 1;
711 }
712 if (!strftime(buf, size, "%b %e %Y", &t))
713 return -E_STRFTIME;
714 return 1;
715 }
716
717 /** Compute the number of (decimal) digits of a number. */
718 #define GET_NUM_DIGITS(x, num) { \
719 typeof((x)) _tmp = PARA_ABS(x); \
720 *num = 1; \
721 if ((_tmp)) \
722 while ((_tmp) > 9) { \
723 (_tmp) /= 10; \
724 (*num)++; \
725 } \
726 }
727
728 static short unsigned get_duration_width(int seconds)
729 {
730 short unsigned width;
731 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
732
733 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
734 return 4 + (mins > 9);
735 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
736 GET_NUM_DIGITS(hours, &width);
737 return width + 6;
738 }
739
740 static void get_duration_buf(int seconds, char *buf, struct ls_options *opts)
741 {
742 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
743 short unsigned max_width;
744
745 if (!hours) { /* m:ss or mm:ss */
746 max_width = opts->mode == LS_MODE_LONG?
747 opts->widths.duration_width : 4;
748 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
749 } else { /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
750 max_width = opts->mode == LS_MODE_LONG?
751 opts->widths.duration_width : 7;
752 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
753 seconds % 60);
754 }
755 }
756
757
758 static int write_attribute_items(struct para_buffer *b,
759 const char *att_bitmap, struct afs_info *afsi)
760 {
761 char *att_text;
762 int ret;
763
764 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_BITMAP, "%s\n", att_bitmap);
765 if (ret < 0)
766 return ret;
767 ret = get_attribute_text(&afsi->attributes, " ", &att_text);
768 if (ret < 0)
769 return ret;
770 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_TXT, "%s\n", att_text);
771 free(att_text);
772 return ret;
773 }
774
775 static int write_lyrics_items(struct para_buffer *b, struct afs_info *afsi)
776 {
777 char *lyrics_name;
778 int ret;
779
780 ret = WRITE_STATUS_ITEM(b, SI_LYRICS_ID, "%u\n", afsi->lyrics_id);
781 if (ret < 0)
782 return ret;
783 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
784 return WRITE_STATUS_ITEM(b, SI_LYRICS_NAME, "%s\n", lyrics_name?
785 lyrics_name : "(none)");
786 }
787
788 static int write_image_items(struct para_buffer *b, struct afs_info *afsi)
789 {
790 char *image_name;
791 int ret;
792
793 ret = WRITE_STATUS_ITEM(b, SI_IMAGE_ID, "%u\n", afsi->image_id);
794 if (ret < 0)
795 return ret;
796 img_get_name_by_id(afsi->image_id, &image_name);
797 return WRITE_STATUS_ITEM(b, SI_IMAGE_NAME, "%s\n", image_name?
798 image_name : "(none)");
799 }
800
801 static int write_filename_items(struct para_buffer *b, const char *path,
802 unsigned flags)
803 {
804 char *val;
805 int ret;
806
807 if (!(flags & LS_FLAG_FULL_PATH))
808 return WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", path);
809 ret = WRITE_STATUS_ITEM(b, SI_PATH, "%s\n", path);
810 if (ret < 0)
811 return ret;
812 val = para_basename(path);
813 ret = WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", val? val : "");
814 if (ret < 0)
815 return ret;
816 val = para_dirname(path);
817 ret = WRITE_STATUS_ITEM(b, SI_DIRECTORY, "%s\n", val? val : "");
818 free(val);
819 return ret;
820 }
821
822 static int print_chunk_table(struct ls_data *d, struct para_buffer *b)
823 {
824 struct osl_object chunk_table_obj;
825 struct osl_row *aft_row;
826 int ret, i;
827 char *buf;
828
829 ret = aft_get_row_of_hash(d->hash, &aft_row);
830 if (ret < 0)
831 return ret;
832 ret = osl_open_disk_object(audio_file_table, aft_row,
833 AFTCOL_CHUNKS, &chunk_table_obj);
834 if (ret < 0)
835 return ret;
836 ret = para_printf(b, "%s\n"
837 "chunk_time: %lu:%lu\nchunk_offsets: ",
838 d->path,
839 (long unsigned) d->afhi.chunk_tv.tv_sec,
840 (long unsigned) d->afhi.chunk_tv.tv_usec
841 );
842 if (ret < 0)
843 goto out;
844 buf = chunk_table_obj.data;
845 for (i = 0; i <= d->afhi.chunks_total; i++) {
846 ret = para_printf(b, "%u ", (unsigned) read_u32(buf + 4 * i));
847 if (ret < 0)
848 goto out;
849 }
850 ret = para_printf(b, "\n");
851 out:
852 osl_close_disk_object(&chunk_table_obj);
853 return ret;
854 }
855
856 static int write_score(struct para_buffer *b, struct ls_data *d,
857 struct ls_options *opts)
858 {
859 if (!(opts->flags & LS_FLAG_ADMISSIBLE_ONLY)) /* no score*/
860 return 0;
861 return WRITE_STATUS_ITEM(b, SI_SCORE, "%li\n", d->score);
862 }
863
864 static int print_list_item(struct ls_data *d, struct ls_options *opts,
865 struct para_buffer *b, time_t current_time)
866 {
867 int ret;
868 char att_buf[65];
869 char last_played_time[30];
870 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
871 struct afs_info *afsi = &d->afsi;
872 struct afh_info *afhi = &d->afhi;
873 char asc_hash[2 * HASH_SIZE + 1];
874
875 if (opts->mode == LS_MODE_SHORT) {
876 ret = para_printf(b, "%s\n", d->path);
877 goto out;
878 }
879 if (opts->mode == LS_MODE_CHUNKS) {
880 ret = print_chunk_table(d, b);
881 goto out;
882 }
883 get_attribute_bitmap(&afsi->attributes, att_buf);
884 if (opts->flags & LS_FLAG_UNIXDATE)
885 sprintf(last_played_time, "%llu",
886 (long long unsigned)afsi->last_played);
887 else {
888 ret = get_local_time(&afsi->last_played, last_played_time,
889 sizeof(last_played_time), current_time, opts->mode);
890 if (ret < 0)
891 goto out;
892 }
893 get_duration_buf(afhi->seconds_total, duration_buf, opts);
894 if (opts->mode == LS_MODE_LONG) {
895 struct ls_widths *w = &opts->widths;
896 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY) {
897 ret = para_printf(b, "%*li ",
898 opts->widths.score_width, d->score);
899 if (ret < 0)
900 goto out;
901 }
902 ret = para_printf(b,
903 "%s " /* attributes */
904 "%*u " /* amp */
905 "%*d " /* image_id */
906 "%*d " /* lyrics_id */
907 "%*d " /* bitrate */
908 "%s " /* audio format */
909 "%*d " /* frequency */
910 "%d " /* channels */
911 "%s " /* duration */
912 "%*d " /* num_played */
913 "%s " /* last_played */
914 "%s\n", /* path */
915 att_buf,
916 w->amp_width, afsi->amp,
917 w->image_id_width, afsi->image_id,
918 w->lyrics_id_width, afsi->lyrics_id,
919 w->bitrate_width, afhi->bitrate,
920 audio_format_name(afsi->audio_format_id),
921 w->frequency_width, afhi->frequency,
922 afhi->channels,
923 duration_buf,
924 w->num_played_width, afsi->num_played,
925 last_played_time,
926 d->path
927 );
928 goto out;
929 }
930 if (opts->mode == LS_MODE_MBOX) {
931 const char *bn = para_basename(d->path);
932 ret = para_printf(b,
933 "From foo@localhost %s\n"
934 "Received: from\nTo: bar\nFrom: a\n"
935 "Subject: %s\n\n",
936 last_played_time,
937 bn? bn : "?");
938 if (ret < 0)
939 goto out;
940 }
941 ret = write_filename_items(b, d->path, opts->flags);
942 if (ret < 0)
943 goto out;
944 ret = write_score(b, d, opts);
945 if (ret < 0)
946 goto out;
947 ret = write_attribute_items(b, att_buf, afsi);
948 if (ret < 0)
949 goto out;
950 ret = write_image_items(b, afsi);
951 if (ret < 0)
952 goto out;
953 ret = write_lyrics_items(b, afsi);
954 if (ret < 0)
955 goto out;
956 hash_to_asc(d->hash, asc_hash);
957 ret = WRITE_STATUS_ITEM(b, SI_HASH, "%s\n", asc_hash);
958 if (ret < 0)
959 goto out;
960 ret = WRITE_STATUS_ITEM(b, SI_BITRATE, "%dkbit/s\n", afhi->bitrate);
961 if (ret < 0)
962 goto out;
963 ret = WRITE_STATUS_ITEM(b, SI_FORMAT, "%s\n",
964 audio_format_name(afsi->audio_format_id));
965 if (ret < 0)
966 goto out;
967 ret = WRITE_STATUS_ITEM(b, SI_FREQUENCY, "%dHz\n", afhi->frequency);
968 if (ret < 0)
969 goto out;
970 ret = WRITE_STATUS_ITEM(b, SI_CHANNELS, "%d\n", afhi->channels);
971 if (ret < 0)
972 goto out;
973 ret = WRITE_STATUS_ITEM(b, SI_DURATION, "%s\n", duration_buf);
974 if (ret < 0)
975 goto out;
976 ret = WRITE_STATUS_ITEM(b, SI_SECONDS_TOTAL, "%lu\n",
977 afhi->seconds_total);
978 if (ret < 0)
979 goto out;
980 ret = WRITE_STATUS_ITEM(b, SI_LAST_PLAYED, "%s\n", last_played_time);
981 if (ret < 0)
982 goto out;
983 ret = WRITE_STATUS_ITEM(b, SI_NUM_PLAYED, "%d\n", afsi->num_played);
984 if (ret < 0)
985 goto out;
986 ret = WRITE_STATUS_ITEM(b, SI_AMPLIFICATION, "%u\n", afsi->amp);
987 if (ret < 0)
988 goto out;
989 ret = WRITE_STATUS_ITEM(b, SI_CHUNK_TIME, "%lu\n",
990 tv2ms(&afhi->chunk_tv));
991 if (ret < 0)
992 goto out;
993 ret = WRITE_STATUS_ITEM(b, SI_NUM_CHUNKS, "%lu\n",
994 afhi->chunks_total);
995 if (ret < 0)
996 goto out;
997 ret = WRITE_STATUS_ITEM(b, SI_TECHINFO, "%s\n", afhi->techinfo);
998 if (ret < 0)
999 goto out;
1000 ret = WRITE_STATUS_ITEM(b, SI_ARTIST, "%s\n", afhi->tags.artist);
1001 if (ret < 0)
1002 goto out;
1003 ret = WRITE_STATUS_ITEM(b, SI_TITLE, "%s\n", afhi->tags.title);
1004 if (ret < 0)
1005 goto out;
1006 ret = WRITE_STATUS_ITEM(b, SI_YEAR, "%s\n", afhi->tags.year);
1007 if (ret < 0)
1008 goto out;
1009 ret = WRITE_STATUS_ITEM(b, SI_ALBUM, "%s\n", afhi->tags.album);
1010 if (ret < 0)
1011 goto out;
1012 ret = WRITE_STATUS_ITEM(b, SI_COMMENT, "%s\n", afhi->tags.comment);
1013 if (ret < 0)
1014 goto out;
1015 if (opts->mode == LS_MODE_MBOX) {
1016 struct osl_object lyrics_def;
1017 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
1018 if (lyrics_def.data) {
1019 ret = para_printf(b, "Lyrics:\n~~~~~~~\n%s",
1020 (char *)lyrics_def.data);
1021 osl_close_disk_object(&lyrics_def);
1022 }
1023 }
1024 out:
1025 return ret;
1026 }
1027
1028 static int make_status_items(struct audio_file_data *afd,
1029 struct afs_info *afsi, char *path, long score,
1030 HASH_TYPE *hash)
1031 {
1032 struct ls_data d = {
1033 .afhi = afd->afhi,
1034 .afsi = *afsi,
1035 .path = path,
1036 .score = score,
1037 .hash = hash
1038 };
1039 struct ls_options opts = {
1040 .flags = LS_FLAG_FULL_PATH | LS_FLAG_ADMISSIBLE_ONLY,
1041 .mode = LS_MODE_VERBOSE,
1042 };
1043 struct para_buffer pb = {.max_size = SHMMAX - 1};
1044 time_t current_time;
1045 int ret;
1046
1047 time(&current_time);
1048 ret = print_list_item(&d, &opts, &pb, current_time);
1049 if (ret < 0)
1050 return ret;
1051 free(status_items);
1052 status_items = pb.buf;
1053 memset(&pb, 0, sizeof(pb));
1054 pb.max_size = SHMMAX - 1;
1055 pb.flags = PBF_SIZE_PREFIX;
1056 ret = print_list_item(&d, &opts, &pb, current_time);
1057 if (ret < 0) {
1058 free(status_items);
1059 status_items = NULL;
1060 return ret;
1061 }
1062 free(parser_friendly_status_items);
1063 parser_friendly_status_items = pb.buf;
1064 return 1;
1065 }
1066
1067 /**
1068 * Mmap the given audio file and update statistics.
1069 *
1070 * \param aft_row Determines the audio file to be opened and updated.
1071 * \param score The score of the audio file.
1072 * \param afd Result pointer.
1073 *
1074 * On success, the numplayed field of the audio file selector info is increased
1075 * and the lastplayed time is set to the current time. Finally, the score of
1076 * the audio file is updated.
1077 *
1078 * \return Positive shmid on success, negative on errors.
1079 */
1080 int open_and_update_audio_file(struct osl_row *aft_row, long score,
1081 struct audio_file_data *afd)
1082 {
1083 HASH_TYPE *aft_hash, file_hash[HASH_SIZE];
1084 struct osl_object afsi_obj;
1085 struct afs_info old_afsi, new_afsi;
1086 int ret = get_hash_of_row(aft_row, &aft_hash);
1087 struct afsi_change_event_data aced;
1088 struct osl_object map, chunk_table_obj;
1089 char *path;
1090
1091 if (ret < 0)
1092 return ret;
1093 ret = get_audio_file_path_of_row(aft_row, &path);
1094 if (ret < 0)
1095 return ret;
1096 PARA_NOTICE_LOG("%s\n", path);
1097 ret = get_afsi_object_of_row(aft_row, &afsi_obj);
1098 if (ret < 0)
1099 return ret;
1100 ret = load_afsi(&old_afsi, &afsi_obj);
1101 if (ret < 0)
1102 return ret;
1103 ret = get_afhi_of_row(aft_row, &afd->afhi);
1104 if (ret < 0)
1105 return ret;
1106 afd->afhi.chunk_table = NULL;
1107 ret = osl_open_disk_object(audio_file_table, aft_row,
1108 AFTCOL_CHUNKS, &chunk_table_obj);
1109 if (ret < 0)
1110 goto err;
1111 ret = mmap_full_file(path, O_RDONLY, &map.data,
1112 &map.size, &afd->fd);
1113 if (ret < 0)
1114 goto err;
1115 hash_function(map.data, map.size, file_hash);
1116 ret = hash_compare(file_hash, aft_hash);
1117 para_munmap(map.data, map.size);
1118 if (ret) {
1119 ret = -E_HASH_MISMATCH;
1120 goto err;
1121 }
1122 new_afsi = old_afsi;
1123 new_afsi.num_played++;
1124 new_afsi.last_played = time(NULL);
1125 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
1126
1127 afd->audio_format_id = old_afsi.audio_format_id;
1128 load_chunk_table(&afd->afhi, chunk_table_obj.data);
1129 ret = make_status_items(afd, &old_afsi, path, score, file_hash);
1130 if (ret < 0)
1131 goto err;
1132 aced.aft_row = aft_row;
1133 aced.old_afsi = &old_afsi;
1134 afs_event(AFSI_CHANGE, NULL, &aced);
1135 ret = save_afd(afd);
1136 err:
1137 free(afd->afhi.chunk_table);
1138 osl_close_disk_object(&chunk_table_obj);
1139 if (ret < 0)
1140 PARA_ERROR_LOG("%s: %s\n", path, para_strerror(-ret));
1141 return ret;
1142 }
1143
1144 static int ls_audio_format_compare(const void *a, const void *b)
1145 {
1146 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1147 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
1148 }
1149
1150 static int ls_duration_compare(const void *a, const void *b)
1151 {
1152 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1153 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
1154 }
1155
1156 static int ls_bitrate_compare(const void *a, const void *b)
1157 {
1158 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1159 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
1160 }
1161
1162 static int ls_lyrics_id_compare(const void *a, const void *b)
1163 {
1164 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1165 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
1166 }
1167
1168 static int ls_image_id_compare(const void *a, const void *b)
1169 {
1170 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1171 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
1172 }
1173
1174 static int ls_channels_compare(const void *a, const void *b)
1175 {
1176 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1177 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
1178 }
1179
1180 static int ls_frequency_compare(const void *a, const void *b)
1181 {
1182 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1183 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
1184 }
1185
1186 static int ls_num_played_compare(const void *a, const void *b)
1187 {
1188 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1189 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1190 }
1191
1192 static int ls_last_played_compare(const void *a, const void *b)
1193 {
1194 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1195 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1196 }
1197
1198 static int ls_score_compare(const void *a, const void *b)
1199 {
1200 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1201 return NUM_COMPARE(d1->score, d2->score);
1202 }
1203
1204 static int ls_path_compare(const void *a, const void *b)
1205 {
1206 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1207 return strcmp(d1->path, d2->path);
1208 }
1209
1210 static int sort_matching_paths(struct ls_options *options)
1211 {
1212 size_t nmemb = options->num_matching_paths;
1213 size_t size = sizeof(*options->data_ptr);
1214 int (*compar)(const void *, const void *);
1215 int i;
1216
1217 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1218 for (i = 0; i < nmemb; i++)
1219 options->data_ptr[i] = options->data + i;
1220
1221 /* In these cases the array is already sorted */
1222 if (options->sorting == LS_SORT_BY_PATH
1223 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1224 && (options->flags & LS_FLAG_FULL_PATH))
1225 return 1;
1226 if (options->sorting == LS_SORT_BY_SCORE &&
1227 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1228 return 1;
1229
1230 switch (options->sorting) {
1231 case LS_SORT_BY_PATH:
1232 compar = ls_path_compare; break;
1233 case LS_SORT_BY_SCORE:
1234 compar = ls_score_compare; break;
1235 case LS_SORT_BY_LAST_PLAYED:
1236 compar = ls_last_played_compare; break;
1237 case LS_SORT_BY_NUM_PLAYED:
1238 compar = ls_num_played_compare; break;
1239 case LS_SORT_BY_FREQUENCY:
1240 compar = ls_frequency_compare; break;
1241 case LS_SORT_BY_CHANNELS:
1242 compar = ls_channels_compare; break;
1243 case LS_SORT_BY_IMAGE_ID:
1244 compar = ls_image_id_compare; break;
1245 case LS_SORT_BY_LYRICS_ID:
1246 compar = ls_lyrics_id_compare; break;
1247 case LS_SORT_BY_BITRATE:
1248 compar = ls_bitrate_compare; break;
1249 case LS_SORT_BY_DURATION:
1250 compar = ls_duration_compare; break;
1251 case LS_SORT_BY_AUDIO_FORMAT:
1252 compar = ls_audio_format_compare; break;
1253 default:
1254 return -E_BAD_SORT;
1255 }
1256 qsort(options->data_ptr, nmemb, size, compar);
1257 return 1;
1258 }
1259
1260 /* row is either an aft_row or a row of the score table */
1261 /* TODO: Only compute widths if we need them */
1262 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1263 {
1264 int ret, i;
1265 struct ls_options *options = ls_opts;
1266 struct ls_data *d;
1267 struct ls_widths *w;
1268 unsigned short num_digits;
1269 unsigned tmp;
1270 struct osl_row *aft_row;
1271 long score;
1272 char *path;
1273
1274 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1275 ret = get_score_and_aft_row(row, &score, &aft_row);
1276 if (ret < 0)
1277 return ret;
1278 } else
1279 aft_row = row;
1280 ret = get_audio_file_path_of_row(aft_row, &path);
1281 if (ret < 0)
1282 return ret;
1283 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1284 char *p = strrchr(path, '/');
1285 if (p)
1286 path = p + 1;
1287 }
1288 if (options->num_patterns) {
1289 for (i = 0; i < options->num_patterns; i++) {
1290 ret = fnmatch(options->patterns[i], path, 0);
1291 if (!ret)
1292 break;
1293 if (ret == FNM_NOMATCH)
1294 continue;
1295 return -E_FNMATCH;
1296 }
1297 if (i >= options->num_patterns) /* no match */
1298 return 1;
1299 }
1300 tmp = options->num_matching_paths++;
1301 if (options->num_matching_paths > options->array_size) {
1302 options->array_size++;
1303 options->array_size *= 2;
1304 options->data = para_realloc(options->data, options->array_size
1305 * sizeof(*options->data));
1306 }
1307 d = options->data + tmp;
1308 ret = get_afsi_of_row(aft_row, &d->afsi);
1309 if (ret < 0)
1310 return ret;
1311 ret = get_afhi_of_row(aft_row, &d->afhi);
1312 if (ret < 0)
1313 return ret;
1314 d->path = path;
1315 ret = get_hash_of_row(aft_row, &d->hash);
1316 if (ret < 0)
1317 goto err;
1318 w = &options->widths;
1319 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1320 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1321 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1322 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1323 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1324 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1325 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1326 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1327 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1328 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1329 /* get the number of chars to print this amount of time */
1330 num_digits = get_duration_width(d->afhi.seconds_total);
1331 w->duration_width = PARA_MAX(w->duration_width, num_digits);
1332 GET_NUM_DIGITS(d->afsi.amp, &num_digits);
1333 w->amp_width = PARA_MAX(w->amp_width, num_digits);
1334 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1335 GET_NUM_DIGITS(score, &num_digits);
1336 num_digits++; /* add one for the sign (space or "-") */
1337 w->score_width = PARA_MAX(w->score_width, num_digits);
1338 d->score = score;
1339 }
1340 return 1;
1341 err:
1342 return ret;
1343 }
1344
1345 static void com_ls_callback(int fd, const struct osl_object *query)
1346 {
1347 struct ls_options *opts = query->data;
1348 char *p, *pattern_start = (char *)query->data + sizeof(*opts);
1349 struct para_buffer b = {.max_size = SHMMAX,
1350 .flags = (opts->mode == LS_MODE_PARSER)? PBF_SIZE_PREFIX : 0,
1351 .max_size_handler = pass_buffer_as_shm, .private_data = &fd};
1352 int i = 0, ret;
1353 time_t current_time;
1354
1355 if (opts->num_patterns) {
1356 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1357 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1358 opts->patterns[i] = p;
1359 p += strlen(p) + 1;
1360 }
1361 } else
1362 opts->patterns = NULL;
1363 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1364 ret = admissible_file_loop(opts, prepare_ls_row);
1365 else
1366 ret = osl(osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1367 prepare_ls_row));
1368 if (ret < 0)
1369 goto out;
1370 if (!opts->num_matching_paths)
1371 goto out;
1372 ret = sort_matching_paths(opts);
1373 if (ret < 0)
1374 goto out;
1375 time(&current_time);
1376 if (opts->flags & LS_FLAG_REVERSE)
1377 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1378 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1379 if (ret < 0)
1380 goto out;
1381 }
1382 else
1383 for (i = 0; i < opts->num_matching_paths; i++) {
1384 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1385 if (ret < 0)
1386 goto out;
1387 }
1388 out:
1389 if (b.offset)
1390 pass_buffer_as_shm(b.buf, b.offset, &fd);
1391 free(b.buf);
1392 free(opts->data);
1393 free(opts->data_ptr);
1394 free(opts->patterns);
1395 }
1396
1397 /*
1398 * TODO: flags -h (sort by hash)
1399 */
1400 int com_ls(struct rc4_context *rc4c, int argc, char * const * const argv)
1401 {
1402 int i, ret;
1403 unsigned flags = 0;
1404 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1405 enum ls_listing_mode mode = LS_MODE_SHORT;
1406 struct ls_options opts = {.patterns = NULL};
1407 struct osl_object query = {.data = &opts, .size = sizeof(opts)};
1408
1409 for (i = 1; i < argc; i++) {
1410 const char *arg = argv[i];
1411 if (arg[0] != '-')
1412 break;
1413 if (!strcmp(arg, "--")) {
1414 i++;
1415 break;
1416 }
1417 if (!strncmp(arg, "-l", 2)) {
1418 if (!*(arg + 2)) {
1419 mode = LS_MODE_LONG;
1420 continue;
1421 }
1422 if (*(arg + 3))
1423 return -E_AFT_SYNTAX;
1424 switch(*(arg + 2)) {
1425 case 's':
1426 mode = LS_MODE_SHORT;
1427 continue;
1428 case 'l':
1429 mode = LS_MODE_LONG;
1430 continue;
1431 case 'v':
1432 mode = LS_MODE_VERBOSE;
1433 continue;
1434 case 'm':
1435 mode = LS_MODE_MBOX;
1436 continue;
1437 case 'c':
1438 mode = LS_MODE_CHUNKS;
1439 continue;
1440 case 'p':
1441 mode = LS_MODE_PARSER;
1442 continue;
1443 default:
1444 return -E_AFT_SYNTAX;
1445 }
1446 }
1447 if (!strcmp(arg, "-p")) {
1448 flags |= LS_FLAG_FULL_PATH;
1449 continue;
1450 }
1451 if (!strcmp(arg, "-a")) {
1452 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1453 continue;
1454 }
1455 if (!strcmp(arg, "-r")) {
1456 flags |= LS_FLAG_REVERSE;
1457 continue;
1458 }
1459 if (!strcmp(arg, "-d")) {
1460 flags |= LS_FLAG_UNIXDATE;
1461 continue;
1462 }
1463 if (!strncmp(arg, "-s", 2)) {
1464 if (!*(arg + 2) || *(arg + 3))
1465 return -E_AFT_SYNTAX;
1466 switch(*(arg + 2)) {
1467 case 'p':
1468 sort = LS_SORT_BY_PATH;
1469 continue;
1470 case 's': /* -ss implies -a */
1471 sort = LS_SORT_BY_SCORE;
1472 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1473 continue;
1474 case 'l':
1475 sort = LS_SORT_BY_LAST_PLAYED;
1476 continue;
1477 case 'n':
1478 sort = LS_SORT_BY_NUM_PLAYED;
1479 continue;
1480 case 'f':
1481 sort = LS_SORT_BY_FREQUENCY;
1482 continue;
1483 case 'c':
1484 sort = LS_SORT_BY_CHANNELS;
1485 continue;
1486 case 'i':
1487 sort = LS_SORT_BY_IMAGE_ID;
1488 continue;
1489 case 'y':
1490 sort = LS_SORT_BY_LYRICS_ID;
1491 continue;
1492 case 'b':
1493 sort = LS_SORT_BY_BITRATE;
1494 continue;
1495 case 'd':
1496 sort = LS_SORT_BY_DURATION;
1497 continue;
1498 case 'a':
1499 sort = LS_SORT_BY_AUDIO_FORMAT;
1500 continue;
1501 default:
1502 return -E_AFT_SYNTAX;
1503 }
1504 }
1505 return -E_AFT_SYNTAX;
1506 }
1507 opts.flags = flags;
1508 opts.sorting = sort;
1509 opts.mode = mode;
1510 opts.num_patterns = argc - i;
1511 ret = send_option_arg_callback_request(&query, opts.num_patterns,
1512 argv + i, com_ls_callback, rc4_send_result, rc4c);
1513 return ret;
1514 }
1515
1516 /**
1517 * Call the given function for each file in the audio file table.
1518 *
1519 * \param private_data An arbitrary data pointer, passed to \a func.
1520 * \param func The custom function to be called.
1521 *
1522 * \return Standard.
1523 */
1524 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1525 {
1526 return osl(osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1527 func));
1528 }
1529
1530 static struct osl_row *find_hash_sister(HASH_TYPE *hash)
1531 {
1532 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
1533 struct osl_row *row;
1534
1535 osl_get_row(audio_file_table, AFTCOL_HASH, &obj, &row);
1536 return row;
1537 }
1538
1539 /** The format of the data stored by save_audio_file_data(). */
1540 enum com_add_buffer_offsets {
1541 /** afhi (if present) starts here. */
1542 CAB_AFHI_OFFSET_POS = 0,
1543 /** Start of the chunk table (if present). */
1544 CAB_CHUNKS_OFFSET_POS = 2,
1545 /** Audio format id. */
1546 CAB_AUDIO_FORMAT_OFFSET = 4,
1547 /** Flags given to the add command. */
1548 CAB_FLAGS_OFFSET = 5,
1549 /** The hash of the audio file being added. */
1550 CAB_HASH_OFFSET = 9,
1551 /** Start of the path of the audio file. */
1552 CAB_PATH_OFFSET = (CAB_HASH_OFFSET + HASH_SIZE),
1553 };
1554
1555 /*
1556 * Store the given data to a single buffer. Doesn't need the audio file selector
1557 * info struct as the server knows it as well.
1558 *
1559 * It's OK to call this with afhi == NULL. In this case, the audio format
1560 * handler info won't be stored in the buffer.
1561 */
1562 static void save_add_callback_buffer(HASH_TYPE *hash, const char *path,
1563 struct afh_info *afhi, uint32_t flags,
1564 uint8_t audio_format_num, struct osl_object *obj)
1565 {
1566 size_t path_len = strlen(path) + 1;
1567 size_t afhi_size = sizeof_afhi_buf(afhi);
1568 size_t size = CAB_PATH_OFFSET + path_len + afhi_size
1569 + sizeof_chunk_table(afhi);
1570 char *buf = para_malloc(size);
1571 uint16_t pos;
1572
1573 write_u8(buf + CAB_AUDIO_FORMAT_OFFSET, audio_format_num);
1574 write_u32(buf + CAB_FLAGS_OFFSET, flags);
1575
1576 memcpy(buf + CAB_HASH_OFFSET, hash, HASH_SIZE);
1577 strcpy(buf + CAB_PATH_OFFSET, path);
1578
1579 pos = CAB_PATH_OFFSET + path_len;
1580 PARA_DEBUG_LOG("size: %zu, afhi starts at %d\n", size, pos);
1581 PARA_DEBUG_LOG("last afhi byte: %p, pos %zu\n", buf + pos + afhi_size - 1,
1582 pos + afhi_size - 1);
1583 write_u16(buf + CAB_AFHI_OFFSET_POS, pos);
1584 save_afhi(afhi, buf + pos);
1585
1586 pos += afhi_size;
1587 PARA_DEBUG_LOG("size: %zu, chunks start at %d\n", size, pos);
1588 write_u16(buf + CAB_CHUNKS_OFFSET_POS, pos);
1589 if (afhi)
1590 save_chunk_table(afhi, buf + pos);
1591 PARA_DEBUG_LOG("last byte in buf: %p\n", buf + size - 1);
1592 obj->data = buf;
1593 obj->size = size;
1594 }
1595
1596 /*
1597
1598 Overview of the add command.
1599
1600 Input: What was passed to the callback by the command handler.
1601 ~~~~~~
1602 HS: Hash sister. Whether an audio file with identical hash
1603 already exists in the osl database.
1604
1605 PB: Path brother. Whether a file with the given path exists
1606 in the table.
1607
1608 F: Force flag given. Whether add was called with -f.
1609
1610 output: Action performed by the callback.
1611 ~~~~~~~
1612 AFHI: Whether afhi and chunk table are computed and sent.
1613 ACTION: Table modifications to be done by the callback.
1614
1615 +----+----+---+------+---------------------------------------------------+
1616 | HS | PB | F | AFHI | ACTION
1617 +----+----+---+------+---------------------------------------------------+
1618 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1619 | | update path, keep afsi
1620 +----+----+---+------+---------------------------------------------------+
1621 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1622 | | otherwise: remove PB, HS: update path, keep afhi,
1623 | | afsi.
1624 +----+----+---+------+---------------------------------------------------+
1625 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1626 | | HS, keep afsi
1627 +----+----+---+------+---------------------------------------------------+
1628 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1629 +----+----+---+------+---------------------------------------------------+
1630 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1631 | | (force has no effect)
1632 +----+----+---+------+---------------------------------------------------+
1633 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1634 +----+----+---+------+---------------------------------------------------+
1635 | N | N | Y | Y | (new file) create new entry (force has no effect)
1636 +----+----+---+------+---------------------------------------------------+
1637 | N | N | N | Y | (new file) create new entry
1638 +----+----+---+------+---------------------------------------------------+
1639
1640 Notes:
1641
1642 afhi <=> force or no HS
1643 F => AFHI
1644
1645 */
1646
1647 /** Flags passed to the add command. */
1648 enum com_add_flags {
1649 /** Skip paths that exist already. */
1650 ADD_FLAG_LAZY = 1,
1651 /** Force adding. */
1652 ADD_FLAG_FORCE = 2,
1653 /** Print what is being done. */
1654 ADD_FLAG_VERBOSE = 4,
1655 /** Try to add files with unknown suffixes. */
1656 ADD_FLAG_ALL = 8,
1657 };
1658
1659 static void com_add_callback(int fd, const struct osl_object *query)
1660 {
1661 char *buf = query->data, *path;
1662 struct osl_row *pb, *aft_row;
1663 struct osl_row *hs;
1664 struct osl_object objs[NUM_AFT_COLUMNS];
1665 HASH_TYPE *hash;
1666 char asc[2 * HASH_SIZE + 1];
1667 int ret;
1668 char afsi_buf[AFSI_SIZE];
1669 uint32_t flags = read_u32(buf + CAB_FLAGS_OFFSET);
1670 struct afs_info default_afsi = {.last_played = 0};
1671 struct para_buffer msg = {.max_size = SHMMAX,
1672 .max_size_handler = pass_buffer_as_shm, .private_data = &fd};
1673 uint16_t afhi_offset, chunks_offset;
1674
1675 hash = (HASH_TYPE *)buf + CAB_HASH_OFFSET;
1676 hash_to_asc(hash, asc);;
1677 objs[AFTCOL_HASH].data = buf + CAB_HASH_OFFSET;
1678 objs[AFTCOL_HASH].size = HASH_SIZE;
1679
1680 path = buf + CAB_PATH_OFFSET;
1681 objs[AFTCOL_PATH].data = path;
1682 objs[AFTCOL_PATH].size = strlen(path) + 1;
1683
1684 PARA_INFO_LOG("request to add %s\n", path);
1685 hs = find_hash_sister(hash);
1686 ret = aft_get_row_of_path(path, &pb);
1687 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1688 goto out;
1689 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1690 if (flags & ADD_FLAG_VERBOSE)
1691 ret = para_printf(&msg, "ignoring duplicate\n");
1692 else
1693 ret = 1;
1694 goto out;
1695 }
1696 if (hs && hs != pb) {
1697 struct osl_object obj;
1698 if (pb) { /* hs trumps pb, remove pb */
1699 if (flags & ADD_FLAG_VERBOSE) {
1700 ret = para_printf(&msg, "removing path brother\n");
1701 if (ret < 0)
1702 goto out;
1703 }
1704 ret = osl(osl_del_row(audio_file_table, pb));
1705 if (ret < 0)
1706 goto out;
1707 pb = NULL;
1708 }
1709 /* file rename, update hs' path */
1710 if (flags & ADD_FLAG_VERBOSE) {
1711 ret = osl(osl_get_object(audio_file_table, hs,
1712 AFTCOL_PATH, &obj));
1713 if (ret < 0)
1714 goto out;
1715 ret = para_printf(&msg, "renamed from %s\n", (char *)obj.data);
1716 if (ret < 0)
1717 goto out;
1718 }
1719 ret = osl(osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1720 &objs[AFTCOL_PATH]));
1721 if (ret < 0)
1722 goto out;
1723 afs_event(AUDIO_FILE_RENAME, &msg, hs);
1724 if (!(flags & ADD_FLAG_FORCE))
1725 goto out;
1726 }
1727 /* no hs or force mode, child must have sent afhi */
1728 afhi_offset = read_u16(buf + CAB_AFHI_OFFSET_POS);
1729 chunks_offset = read_u16(buf + CAB_CHUNKS_OFFSET_POS);
1730
1731 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1732 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1733 ret = -E_NO_AFHI;
1734 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1735 goto out;
1736 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1737 objs[AFTCOL_CHUNKS].size = query->size - chunks_offset;
1738 if (pb && !hs) { /* update pb's hash */
1739 char old_asc[2 * HASH_SIZE + 1];
1740 HASH_TYPE *old_hash;
1741 ret = get_hash_of_row(pb, &old_hash);
1742 if (ret < 0)
1743 goto out;
1744 hash_to_asc(old_hash, old_asc);
1745 if (flags & ADD_FLAG_VERBOSE) {
1746 ret = para_printf(&msg, "file change: %s -> %s\n",
1747 old_asc, asc);
1748 if (ret < 0)
1749 goto out;
1750 }
1751 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1752 &objs[AFTCOL_HASH]);
1753 if (ret < 0)
1754 goto out;
1755 }
1756 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1757 struct osl_row *row = pb? pb : hs;
1758 /* update afhi and chunk_table */
1759 if (flags & ADD_FLAG_VERBOSE) {
1760 ret = para_printf(&msg, "updating afhi and chunk table\n");
1761 if (ret < 0)
1762 goto out;
1763 }
1764 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1765 &objs[AFTCOL_AFHI]));
1766 if (ret < 0)
1767 goto out;
1768 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1769 &objs[AFTCOL_CHUNKS]));
1770 if (ret < 0)
1771 goto out;
1772 afs_event(AFHI_CHANGE, &msg, row);
1773 goto out;
1774 }
1775 /* new entry, use default afsi */
1776 if (flags & ADD_FLAG_VERBOSE) {
1777 ret = para_printf(&msg, "new file\n");
1778 if (ret < 0)
1779 goto out;
1780 }
1781 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1782 default_afsi.audio_format_id = read_u8(buf + CAB_AUDIO_FORMAT_OFFSET);
1783
1784 objs[AFTCOL_AFSI].data = &afsi_buf;
1785 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1786 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1787 ret = osl(osl_add_and_get_row(audio_file_table, objs, &aft_row));
1788 afs_event(AUDIO_FILE_ADD, &msg, aft_row);
1789 out:
1790 if (ret < 0)
1791 para_printf(&msg, "%s\n", para_strerror(-ret));
1792 if (msg.offset)
1793 pass_buffer_as_shm(msg.buf, msg.offset, &fd);
1794 free(msg.buf);
1795 }
1796
1797 /** Used by com_add(). */
1798 struct private_add_data {
1799 /** The socket file descriptor, including rc4 keys. */
1800 struct rc4_context *rc4c;
1801 /** The given add flags. */
1802 uint32_t flags;
1803 };
1804
1805 static void path_brother_callback(int fd, const struct osl_object *query)
1806 {
1807 char *path = query->data;
1808 struct osl_row *path_brother;
1809 int ret = aft_get_row_of_path(path, &path_brother);
1810 if (ret < 0)
1811 return;
1812 pass_buffer_as_shm((char *)&path_brother, sizeof(path_brother), &fd);
1813 }
1814
1815 static void hash_sister_callback(int fd, const struct osl_object *query)
1816 {
1817 HASH_TYPE *hash = query->data;
1818 struct osl_row *hash_sister;
1819
1820 hash_sister = find_hash_sister(hash);
1821 if (!hash_sister)
1822 return;
1823 pass_buffer_as_shm((char *)&hash_sister, sizeof(hash_sister), &fd);
1824 }
1825
1826 static int get_row_pointer_from_result(struct osl_object *result, void *private)
1827 {
1828 struct osl_row **row = private;
1829 *row = result->data;
1830 return 1;
1831 }
1832
1833 static int add_one_audio_file(const char *path, void *private_data)
1834 {
1835 int ret, send_ret = 1, fd;
1836 uint8_t format_num = -1;
1837 struct private_add_data *pad = private_data;
1838 struct afh_info afhi, *afhi_ptr = NULL;
1839 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1840 struct osl_object map, obj = {.data = NULL}, query;
1841 HASH_TYPE hash[HASH_SIZE];
1842
1843 ret = guess_audio_format(path);
1844 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL))
1845 goto out_free;
1846 query.data = (char *)path;
1847 query.size = strlen(path) + 1;
1848 ret = send_callback_request(path_brother_callback, &query,
1849 get_row_pointer_from_result, &pb);
1850 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1851 goto out_free;
1852 ret = 1;
1853 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1854 if (pad->flags & ADD_FLAG_VERBOSE)
1855 send_ret = rc4_send_va_buffer(pad->rc4c,
1856 "lazy-ignore: %s\n", path);
1857 goto out_free;
1858 }
1859 /* We still want to add this file. Compute its hash. */
1860 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &fd);
1861 if (ret < 0)
1862 goto out_free;
1863 hash_function(map.data, map.size, hash);
1864
1865 /* Check whether the database contains a file with the same hash. */
1866 query.data = hash;
1867 query.size = HASH_SIZE;
1868 ret = send_callback_request(hash_sister_callback, &query,
1869 get_row_pointer_from_result, &hs);
1870 if (ret < 0)
1871 goto out_unmap;
1872 /* Return success if we already know this file. */
1873 ret = 1;
1874 if (pb && hs && hs == pb && !(pad->flags & ADD_FLAG_FORCE)) {
1875 if (pad->flags & ADD_FLAG_VERBOSE)
1876 send_ret = rc4_send_va_buffer(pad->rc4c,
1877 "%s exists, not forcing update\n", path);
1878 goto out_unmap;
1879 }
1880 /*
1881 * We won't recalculate the audio format info and the chunk table if
1882 * there is a hash sister and FORCE was not given.
1883 */
1884 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1885 ret = compute_afhi(path, map.data, map.size, fd, &afhi);
1886 if (ret < 0)
1887 goto out_unmap;
1888 format_num = ret;
1889 afhi_ptr = &afhi;
1890 }
1891 munmap(map.data, map.size);
1892 close(fd);
1893 if (pad->flags & ADD_FLAG_VERBOSE) {
1894 send_ret = rc4_send_va_buffer(pad->rc4c, "adding %s\n", path);
1895 if (send_ret < 0)
1896 goto out_free;
1897 }
1898 save_add_callback_buffer(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1899 /* Ask afs to consider this entry for adding. */
1900 ret = send_callback_request(com_add_callback, &obj, rc4_send_result, pad->rc4c);
1901 goto out_free;
1902
1903 out_unmap:
1904 close(fd);
1905 munmap(map.data, map.size);
1906 out_free:
1907 if (ret < 0 && send_ret >= 0)
1908 send_ret = rc4_send_va_buffer(pad->rc4c,
1909 "failed to add %s (%s)\n", path, para_strerror(-ret));
1910 free(obj.data);
1911 if (afhi_ptr) {
1912 free(afhi_ptr->chunk_table);
1913 free(afhi_ptr->techinfo);
1914 free(afhi_ptr->tags.artist);
1915 free(afhi_ptr->tags.title);
1916 free(afhi_ptr->tags.year);
1917 free(afhi_ptr->tags.album);
1918 free(afhi_ptr->tags.comment);
1919 }
1920 /* Stop adding files only on send errors. */
1921 return send_ret;
1922 }
1923
1924 int com_add(struct rc4_context *rc4c, int argc, char * const * const argv)
1925 {
1926 int i, ret;
1927 struct private_add_data pad = {.rc4c = rc4c, .flags = 0};
1928 struct stat statbuf;
1929
1930 for (i = 1; i < argc; i++) {
1931 const char *arg = argv[i];
1932 if (arg[0] != '-')
1933 break;
1934 if (!strcmp(arg, "--")) {
1935 i++;
1936 break;
1937 }
1938 if (!strcmp(arg, "-a")) {
1939 pad.flags |= ADD_FLAG_ALL;
1940 continue;
1941 }
1942 if (!strcmp(arg, "-l")) {
1943 pad.flags |= ADD_FLAG_LAZY;
1944 continue;
1945 }
1946 if (!strcmp(arg, "-f")) {
1947 pad.flags |= ADD_FLAG_FORCE;
1948 continue;
1949 }
1950 if (!strcmp(arg, "-v")) {
1951 pad.flags |= ADD_FLAG_VERBOSE;
1952 continue;
1953 }
1954 }
1955 if (argc <= i)
1956 return -E_AFT_SYNTAX;
1957 for (; i < argc; i++) {
1958 char *path;
1959 ret = verify_path(argv[i], &path);
1960 if (ret < 0) {
1961 ret = rc4_send_va_buffer(rc4c, "%s: %s\n", argv[i],
1962 para_strerror(-ret));
1963 if (ret < 0)
1964 return ret;
1965 continue;
1966 }
1967 ret = stat(path, &statbuf);
1968 if (ret < 0) {
1969 ret = rc4_send_va_buffer(rc4c, "failed to stat %s (%s)\n", path,
1970 strerror(errno));
1971 free(path);
1972 if (ret < 0)
1973 return ret;
1974 continue;
1975 }
1976 if (S_ISDIR(statbuf.st_mode))
1977 ret = for_each_file_in_dir(path, add_one_audio_file,
1978 &pad);
1979 else
1980 ret = add_one_audio_file(path, &pad);
1981 if (ret < 0) {
1982 rc4_send_va_buffer(rc4c, "%s: %s\n", path, para_strerror(-ret));
1983 free(path);
1984 return ret;
1985 }
1986 free(path);
1987 }
1988 return 1;
1989
1990 }
1991
1992 /**
1993 * Flags used by the touch command.
1994 *
1995 * \sa com_touch().
1996 */
1997 enum touch_flags {
1998 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1999 TOUCH_FLAG_FNM_PATHNAME = 1,
2000 /** Activates verbose mode. */
2001 TOUCH_FLAG_VERBOSE = 2
2002 };
2003
2004 /** Options used by com_touch(). */
2005 struct com_touch_options {
2006 /** New num_played value. */
2007 int32_t num_played;
2008 /** New last played count. */
2009 int64_t last_played;
2010 /** New lyrics id. */
2011 int32_t lyrics_id;
2012 /** New image id. */
2013 int32_t image_id;
2014 /** New amplification value. */
2015 int32_t amp;
2016 /** Command line flags (see \ref touch_flags). */
2017 unsigned flags;
2018 };
2019
2020 /** Data passed to the action handler of com_touch(). */
2021 struct touch_action_data {
2022 /** Command line options (see \ref com_touch_options). */
2023 struct com_touch_options *cto;
2024 /** Message buffer. */
2025 struct para_buffer pb;
2026 /** How many audio files matched the given pattern. */
2027 unsigned num_matches;
2028 };
2029
2030 static int touch_audio_file(__a_unused struct osl_table *table,
2031 struct osl_row *row, const char *name, void *data)
2032 {
2033 struct touch_action_data *tad = data;
2034 struct osl_object obj;
2035 struct afs_info old_afsi, new_afsi;
2036 int ret, no_options = tad->cto->num_played < 0 && tad->cto->last_played < 0 &&
2037 tad->cto->lyrics_id < 0 && tad->cto->image_id < 0 && tad->cto->amp < 0;
2038 struct afsi_change_event_data aced;
2039
2040 ret = get_afsi_object_of_row(row, &obj);
2041 if (ret < 0)
2042 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2043 ret = load_afsi(&old_afsi, &obj);
2044 if (ret < 0)
2045 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2046 new_afsi = old_afsi;
2047 if (no_options) {
2048 new_afsi.num_played++;
2049 new_afsi.last_played = time(NULL);
2050 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2051 ret = para_printf(&tad->pb, "%s: num_played = %u, "
2052 "last_played = now()\n", name,
2053 new_afsi.num_played);
2054 if (ret < 0)
2055 return ret;
2056 }
2057 } else {
2058 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2059 ret = para_printf(&tad->pb, "touching %s\n", name);
2060 if (ret < 0)
2061 return ret;
2062 }
2063 if (tad->cto->lyrics_id >= 0)
2064 new_afsi.lyrics_id = tad->cto->lyrics_id;
2065 if (tad->cto->image_id >= 0)
2066 new_afsi.image_id = tad->cto->image_id;
2067 if (tad->cto->num_played >= 0)
2068 new_afsi.num_played = tad->cto->num_played;
2069 if (tad->cto->last_played >= 0)
2070 new_afsi.last_played = tad->cto->last_played;
2071 if (tad->cto->amp >= 0)
2072 new_afsi.amp = tad->cto->amp;
2073 }
2074 tad->num_matches++;
2075 save_afsi(&new_afsi, &obj); /* in-place update */
2076 aced.aft_row = row;
2077 aced.old_afsi = &old_afsi;
2078 afs_event(AFSI_CHANGE, &tad->pb, &aced);
2079 return 1;
2080 }
2081
2082 static void com_touch_callback(int fd, const struct osl_object *query)
2083 {
2084 struct touch_action_data tad = {.cto = query->data,
2085 .pb = {
2086 .max_size = SHMMAX,
2087 .private_data = &fd,
2088 .max_size_handler = pass_buffer_as_shm
2089 }
2090 };
2091 int ret, ret2 = 0;
2092 struct pattern_match_data pmd = {
2093 .table = audio_file_table,
2094 .loop_col_num = AFTCOL_HASH,
2095 .match_col_num = AFTCOL_PATH,
2096 .patterns = {.data = (char *)query->data + sizeof(*tad.cto),
2097 .size = query->size - sizeof(*tad.cto)},
2098 .data = &tad,
2099 .action = touch_audio_file
2100 };
2101 if (tad.cto->flags & TOUCH_FLAG_FNM_PATHNAME)
2102 pmd.fnmatch_flags |= FNM_PATHNAME;
2103 ret = for_each_matching_row(&pmd);
2104 if (ret < 0)
2105 ret2 = para_printf(&tad.pb, "%s\n", para_strerror(-ret));
2106 else
2107 if (!tad.num_matches)
2108 ret2 = para_printf(&tad.pb, "no matches\n");
2109 if (ret2 >= 0 && tad.pb.offset)
2110 pass_buffer_as_shm(tad.pb.buf, tad.pb.offset, &fd);
2111 free(tad.pb.buf);
2112 }
2113
2114 int com_touch(struct rc4_context *rc4c, int argc, char * const * const argv)
2115 {
2116 struct com_touch_options cto = {
2117 .num_played = -1,
2118 .last_played = -1,
2119 .lyrics_id = -1,
2120 .image_id = -1,
2121 .amp = -1,
2122 };
2123 struct osl_object query = {.data = &cto, .size = sizeof(cto)};
2124 int i, ret;
2125
2126
2127 for (i = 1; i < argc; i++) {
2128 const char *arg = argv[i];
2129 if (arg[0] != '-')
2130 break;
2131 if (!strcmp(arg, "--")) {
2132 i++;
2133 break;
2134 }
2135 if (!strncmp(arg, "-n=", 3)) {
2136 ret = para_atoi32(arg + 3, &cto.num_played);
2137 if (ret < 0)
2138 return ret;
2139 continue;
2140 }
2141 if (!strncmp(arg, "-l=", 3)) {
2142 ret = para_atoi64(arg + 3, &cto.last_played);
2143 if (ret < 0)
2144 return ret;
2145 continue;
2146 }
2147 if (!strncmp(arg, "-y=", 3)) {
2148 ret = para_atoi32(arg + 3, &cto.lyrics_id);
2149 if (ret < 0)
2150 return ret;
2151 continue;
2152 }
2153 if (!strncmp(arg, "-i=", 3)) {
2154 ret = para_atoi32(arg + 3, &cto.image_id);
2155 if (ret < 0)
2156 return ret;
2157 continue;
2158 }
2159 if (!strncmp(arg, "-a=", 3)) {
2160 int32_t val;
2161 ret = para_atoi32(arg + 3, &val);
2162 if (ret < 0)
2163 return ret;
2164 if (val < 0 || val > 255)
2165 return -ERRNO_TO_PARA_ERROR(EINVAL);
2166 cto.amp = val;
2167 continue;
2168 }
2169 if (!strcmp(arg, "-p")) {
2170 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
2171 continue;
2172 }
2173 if (!strcmp(arg, "-v")) {
2174 cto.flags |= TOUCH_FLAG_VERBOSE;
2175 continue;
2176 }
2177 break; /* non-option starting with dash */
2178 }
2179 if (i >= argc)
2180 return -E_AFT_SYNTAX;
2181 ret = send_option_arg_callback_request(&query, argc - i,
2182 argv + i, com_touch_callback, rc4_send_result, rc4c);
2183 if (ret < 0)
2184 rc4_send_va_buffer(rc4c, "%s\n", para_strerror(-ret));
2185 return ret;
2186 }
2187
2188 /** Flags for com_rm(). */
2189 enum rm_flags {
2190 /** -v */
2191 RM_FLAG_VERBOSE = 1,
2192 /** -f */
2193 RM_FLAG_FORCE = 2,
2194 /** -p */
2195 RM_FLAG_FNM_PATHNAME = 4
2196 };
2197
2198 /** Data passed to the action handler of com_rm(). */
2199 struct com_rm_action_data {
2200 /** Command line flags ((see \ref rm_flags). */
2201 uint32_t flags;
2202 /** Message buffer. */
2203 struct para_buffer pb;
2204 /** Number of audio files removed. */
2205 unsigned num_removed;
2206 };
2207
2208 static int remove_audio_file(__a_unused struct osl_table *table,
2209 struct osl_row *row, const char *name, void *data)
2210 {
2211 struct com_rm_action_data *crd = data;
2212 int ret;
2213
2214 if (crd->flags & RM_FLAG_VERBOSE) {
2215 ret = para_printf(&crd->pb, "removing %s\n", name);
2216 if (ret < 0)
2217 return ret;
2218 }
2219 afs_event(AUDIO_FILE_REMOVE, &crd->pb, row);
2220 ret = osl(osl_del_row(audio_file_table, row));
2221 if (ret < 0)
2222 para_printf(&crd->pb, "%s: %s\n", name, para_strerror(-ret));
2223 else
2224 crd->num_removed++;
2225 return ret;
2226 }
2227
2228 static void com_rm_callback(int fd, const struct osl_object *query)
2229 {
2230 struct com_rm_action_data crd = {.flags = *(uint32_t *)query->data,
2231 .pb = {
2232 .max_size = SHMMAX,
2233 .private_data = &fd,
2234 .max_size_handler = pass_buffer_as_shm
2235 }
2236 };
2237 int ret;
2238 struct pattern_match_data pmd = {
2239 .table = audio_file_table,
2240 .loop_col_num = AFTCOL_HASH,
2241 .match_col_num = AFTCOL_PATH,
2242 .patterns = {.data = (char *)query->data + sizeof(uint32_t),
2243 .size = query->size - sizeof(uint32_t)},
2244 .data = &crd,
2245 .action = remove_audio_file
2246 };
2247 if (crd.flags & RM_FLAG_FNM_PATHNAME)
2248 pmd.fnmatch_flags |= FNM_PATHNAME;
2249 ret = for_each_matching_row(&pmd);
2250 if (ret < 0) {
2251 para_printf(&crd.pb, "%s\n", para_strerror(-ret));
2252 return;
2253 }
2254 if (!crd.num_removed && !(crd.flags & RM_FLAG_FORCE))
2255 ret = para_printf(&crd.pb, "no matches -- nothing removed\n");
2256 else {
2257 if (crd.flags & RM_FLAG_VERBOSE)
2258 ret = para_printf(&crd.pb, "removed %u files\n", crd.num_removed);
2259 }
2260 if (ret >= 0 && crd.pb.offset)
2261 pass_buffer_as_shm(crd.pb.buf, crd.pb.offset, &fd);
2262 free(crd.pb.buf);
2263 }
2264
2265 /* TODO options: -r (recursive) */
2266 int com_rm(struct rc4_context *rc4c, int argc, char * const * const argv)
2267 {
2268 uint32_t flags = 0;
2269 struct osl_object query = {.data = &flags, .size = sizeof(flags)};
2270 int i, ret;
2271
2272 for (i = 1; i < argc; i++) {
2273 const char *arg = argv[i];
2274 if (arg[0] != '-')
2275 break;
2276 if (!strcmp(arg, "--")) {
2277 i++;
2278 break;
2279 }
2280 if (!strcmp(arg, "-f")) {
2281 flags |= RM_FLAG_FORCE;
2282 continue;
2283 }
2284 if (!strcmp(arg, "-p")) {
2285 flags |= RM_FLAG_FNM_PATHNAME;
2286 continue;
2287 }
2288 if (!strcmp(arg, "-v")) {
2289 flags |= RM_FLAG_VERBOSE;
2290 continue;
2291 }
2292 break;
2293 }
2294 if (i >= argc)
2295 return -E_AFT_SYNTAX;
2296 ret = send_option_arg_callback_request(&query, argc - i, argv + i,
2297 com_rm_callback, rc4_send_result, rc4c);
2298 if (ret < 0)
2299 rc4_send_va_buffer(rc4c, "%s\n", para_strerror(-ret));
2300 return ret;
2301 }
2302
2303 /**
2304 * Flags used by the cpsi command.
2305 *
2306 * \sa com_cpsi().
2307 */
2308 enum cpsi_flags {
2309 /** Whether the lyrics id should be copied. */
2310 CPSI_FLAG_COPY_LYRICS_ID = 1,
2311 /** Whether the image id should be copied. */
2312 CPSI_FLAG_COPY_IMAGE_ID = 2,
2313 /** Whether the lastplayed time should be copied. */
2314 CPSI_FLAG_COPY_LASTPLAYED = 4,
2315 /** Whether the numplayed count should be copied. */
2316 CPSI_FLAG_COPY_NUMPLAYED = 8,
2317 /** Whether the attributes should be copied. */
2318 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2319 /** Activates verbose mode. */
2320 CPSI_FLAG_VERBOSE = 32,
2321 };
2322
2323 /** Data passed to the action handler of com_cpsi(). */
2324 struct cpsi_action_data {
2325 /** command line flags (see \ref cpsi_flags). */
2326 unsigned flags;
2327 /** Number of audio files changed. */
2328 unsigned num_copied;
2329 /** Message buffer. */
2330 struct para_buffer pb;
2331 /** Values are copied from here. */
2332 struct afs_info source_afsi;
2333 };
2334
2335 static int copy_selector_info(__a_unused struct osl_table *table,
2336 struct osl_row *row, const char *name, void *data)
2337 {
2338 struct cpsi_action_data *cad = data;
2339 struct osl_object target_afsi_obj;
2340 int ret;
2341 struct afs_info old_afsi, target_afsi;
2342 struct afsi_change_event_data aced;
2343
2344 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2345 if (ret < 0)
2346 return ret;
2347 load_afsi(&target_afsi, &target_afsi_obj);
2348 old_afsi = target_afsi;
2349 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2350 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2351 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2352 target_afsi.image_id = cad->source_afsi.image_id;
2353 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2354 target_afsi.last_played = cad->source_afsi.last_played;
2355 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2356 target_afsi.num_played = cad->source_afsi.num_played;
2357 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2358 target_afsi.attributes = cad->source_afsi.attributes;
2359 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2360 cad->num_copied++;
2361 if (cad->flags & CPSI_FLAG_VERBOSE) {
2362 ret = para_printf(&cad->pb, "copied afsi to %s\n", name);
2363 if (ret < 0)
2364 return ret;
2365 }
2366 aced.aft_row = row;
2367 aced.old_afsi = &old_afsi;
2368 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2369 return 1;
2370 }
2371
2372 static void com_cpsi_callback(int fd, const struct osl_object *query)
2373 {
2374 struct cpsi_action_data cad = {
2375 .flags = *(unsigned *)query->data,
2376 .pb = {
2377 .max_size = SHMMAX,
2378 .private_data = &fd,
2379 .max_size_handler = pass_buffer_as_shm
2380 }
2381 };
2382 int ret;
2383 char *source_path = (char *)query->data + sizeof(cad.flags);
2384 struct pattern_match_data pmd = {
2385 .table = audio_file_table,
2386 .loop_col_num = AFTCOL_HASH,
2387 .match_col_num = AFTCOL_PATH,
2388 .patterns = {.data = source_path + strlen(source_path) + 1,
2389 .size = query->size - sizeof(cad.flags)
2390 - strlen(source_path) - 1},
2391 .data = &cad,
2392 .action = copy_selector_info
2393 };
2394
2395 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2396 if (ret < 0)
2397 goto out;
2398 ret = for_each_matching_row(&pmd);
2399 out:
2400 if (ret < 0)
2401 para_printf(&cad.pb, "%s\n", para_strerror(-ret));
2402 else if (cad.flags & CPSI_FLAG_VERBOSE) {
2403 if (cad.num_copied)
2404 para_printf(&cad.pb, "copied requested afsi from %s "
2405 "to %u files\n", source_path, cad.num_copied);
2406 else
2407 para_printf(&cad.pb, "nothing copied\n");
2408 }
2409 if (cad.pb.offset)
2410 pass_buffer_as_shm(cad.pb.buf, cad.pb.offset, &fd);
2411 free(cad.pb.buf);
2412 }
2413
2414 int com_cpsi(struct rc4_context *rc4c, int argc, char * const * const argv)
2415 {
2416 unsigned flags = 0;
2417 int i, ret;
2418 struct osl_object options = {.data = &flags, .size = sizeof(flags)};
2419
2420 for (i = 1; i < argc; i++) {
2421 const char *arg = argv[i];
2422 if (arg[0] != '-')
2423 break;
2424 if (!strcmp(arg, "--")) {
2425 i++;
2426 break;
2427 }
2428 if (!strcmp(arg, "-y")) {
2429 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2430 continue;
2431 }
2432 if (!strcmp(arg, "-i")) {
2433 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2434 continue;
2435 }
2436 if (!strcmp(arg, "-l")) {
2437 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2438 continue;
2439 }
2440 if (!strcmp(arg, "-n")) {
2441 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2442 continue;
2443 }
2444 if (!strcmp(arg, "-a")) {
2445 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2446 continue;
2447 }
2448 if (!strcmp(arg, "-v")) {
2449 flags |= CPSI_FLAG_VERBOSE;
2450 continue;
2451 }
2452 break;
2453 }
2454 if (i + 1 >= argc) /* need at least source file and pattern */
2455 return -E_AFT_SYNTAX;
2456 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2457 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2458 ret = send_option_arg_callback_request(&options, argc - i, argv + i,
2459 com_cpsi_callback, rc4_send_result, rc4c);
2460 if (ret < 0)
2461 rc4_send_va_buffer(rc4c, "%s\n", para_strerror(-ret));
2462 return ret;
2463 }
2464
2465 static void afs_stat_callback(int fd, const struct osl_object *query)
2466 {
2467 int *parser_friendly = query->data;
2468 char *buf = *parser_friendly?
2469 parser_friendly_status_items : status_items;
2470
2471 if (!buf)
2472 return;
2473 pass_buffer_as_shm(buf, strlen(buf), &fd);
2474 }
2475
2476 /**
2477 * Get the current afs status items from the afs process and send it using RC4.
2478 *
2479 * \param rc4c The rc4 context for data encryption.
2480 * \param parser_friendly Whether parser-friendly output format should be used.
2481 *
2482 * As the contents of the afs status items change in time and the command
2483 * handler only has a COW version created at fork time, it can not send
2484 * up-to-date afs status items directly. Therefore the usual callback mechanism
2485 * is used to pass the status items from the afs process to the command handler
2486 * via a shared memory area and a pipe.
2487 */
2488 int send_afs_status(struct rc4_context *rc4c, int parser_friendly)
2489 {
2490 struct osl_object query = {.data = &parser_friendly,
2491 .size = sizeof(parser_friendly)};
2492
2493 return send_callback_request(afs_stat_callback, &query, rc4_send_result, rc4c);
2494 }
2495
2496 /* TODO: optionally fix problems by removing offending rows */
2497 static int check_audio_file(struct osl_row *row, void *data)
2498 {
2499 char *path;
2500 struct para_buffer *pb = data;
2501 struct stat statbuf;
2502 int ret = get_audio_file_path_of_row(row, &path);
2503 struct afs_info afsi;
2504 char *blob_name;
2505
2506 if (ret < 0)
2507 return para_printf(pb, "%s\n", para_strerror(-ret));
2508 if (stat(path, &statbuf) < 0) {
2509 ret = para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2510 if (ret < 0)
2511 return ret;
2512 } else {
2513 if (!S_ISREG(statbuf.st_mode)) {
2514 ret = para_printf(pb, "%s: not a regular file\n", path);
2515 if (ret < 0)
2516 return ret;
2517 }
2518 }
2519 ret = get_afsi_of_row(row, &afsi);
2520 if (ret < 0)
2521 return para_printf(pb, "%s: %s\n", path, para_strerror(-ret));
2522 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2523 if (ret < 0) {
2524 ret = para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2525 para_strerror(-ret));
2526 if (ret < 0)
2527 return ret;
2528 }
2529 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2530 if (ret < 0)
2531 ret = para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2532 para_strerror(-ret));
2533 return ret;
2534 }
2535
2536 /**
2537 * Check the audio file table for inconsistencies.
2538 *
2539 * \param fd The afs socket.
2540 * \param query Unused.
2541 *
2542 * This function always succeeds.
2543 *
2544 * \sa com_check().
2545 */
2546 void aft_check_callback(int fd, __a_unused const struct osl_object *query)
2547 {
2548 struct para_buffer pb = {
2549 .max_size = SHMMAX,
2550 .private_data = &fd,
2551 .max_size_handler = pass_buffer_as_shm
2552 };
2553 int ret = para_printf(&pb, "checking audio file table...\n");
2554
2555 if (ret < 0)
2556 return;
2557 audio_file_loop(&pb, check_audio_file);
2558 if (pb.offset)
2559 pass_buffer_as_shm(pb.buf, pb.offset, &fd);
2560 free(pb.buf);
2561 }
2562
2563 /**
2564 * Close the audio file table.
2565 *
2566 * \param flags Usual flags that are passed to osl_close_table().
2567 *
2568 * \sa osl_close_table().
2569 */
2570 static void aft_close(void)
2571 {
2572 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2573 audio_file_table = NULL;
2574 free(status_items);
2575 status_items = NULL;
2576 free(parser_friendly_status_items);
2577 parser_friendly_status_items = NULL;
2578 }
2579
2580 /**
2581 * Open the audio file table.
2582 *
2583 * \param dir The database directory.
2584 *
2585 * \return Standard.
2586 *
2587 * \sa osl_open_table().
2588 */
2589 static int aft_open(const char *dir)
2590 {
2591 int ret;
2592
2593 audio_file_table_desc.dir = dir;
2594 ret = osl(osl_open_table(&audio_file_table_desc, &audio_file_table));
2595 if (ret >= 0) {
2596 unsigned num;
2597 osl_get_num_rows(audio_file_table, &num);
2598 PARA_INFO_LOG("audio file table contains %d files\n", num);
2599 return ret;
2600 }
2601 PARA_INFO_LOG("failed to open audio file table\n");
2602 audio_file_table = NULL;
2603 if (ret >= 0 || ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_NOENT))
2604 return 1;
2605 return ret;
2606 }
2607
2608 static int aft_create(const char *dir)
2609 {
2610 audio_file_table_desc.dir = dir;
2611 return osl(osl_create_table(&audio_file_table_desc));
2612 }
2613
2614 static int clear_attribute(struct osl_row *row, void *data)
2615 {
2616 struct rmatt_event_data *red = data;
2617 struct afs_info afsi;
2618 struct osl_object obj;
2619 int ret = get_afsi_object_of_row(row, &obj);
2620 uint64_t mask = ~(1ULL << red->bitnum);
2621
2622 if (ret < 0)
2623 return ret;
2624 ret = load_afsi(&afsi, &obj);
2625 if (ret < 0)
2626 return ret;
2627 afsi.attributes &= mask;
2628 save_afsi(&afsi, &obj);
2629 return 1;
2630 }
2631
2632 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2633 void *data)
2634 {
2635 int ret;
2636
2637 switch(event) {
2638 case ATTRIBUTE_REMOVE: {
2639 const struct rmatt_event_data *red = data;
2640 ret = para_printf(pb, "clearing attribute %s (bit %u) from all "
2641 "entries in the audio file table\n", red->name,
2642 red->bitnum);
2643 if (ret < 0)
2644 return ret;
2645 return audio_file_loop(data, clear_attribute);
2646 }
2647 default:
2648 return 1;
2649 }
2650 }
2651
2652 /**
2653 * Initialize the audio file table.
2654 *
2655 * \param t Pointer to the structure to be initialized.
2656 */
2657 void aft_init(struct afs_table *t)
2658 {
2659 t->open = aft_open;
2660 t->close = aft_close;
2661 t->create = aft_create;
2662 t->event_handler = aft_event_handler;
2663 }