Make rc4 encryption/decryption more explicit.
[paraslash.git] / aft.c
1 /*
2 * Copyright (C) 2007-2009 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 <dirent.h> /* readdir() */
10 #include <openssl/rc4.h>
11
12 #include "para.h"
13 #include "error.h"
14 #include "crypt.h"
15 #include "string.h"
16 #include <sys/mman.h>
17 #include <fnmatch.h>
18 #include <sys/shm.h>
19
20 #include "afh.h"
21 #include "afs.h"
22 #include "net.h"
23 #include "vss.h"
24 #include "fd.h"
25 #include "ipc.h"
26 #include "portable_io.h"
27
28 static struct osl_table *audio_file_table;
29
30 /** The different sorting methods of the ls command. */
31 enum ls_sorting_method {
32 /** -sp (default) */
33 LS_SORT_BY_PATH,
34 /** -ss */
35 LS_SORT_BY_SCORE,
36 /** -sl */
37 LS_SORT_BY_LAST_PLAYED,
38 /** -sn */
39 LS_SORT_BY_NUM_PLAYED,
40 /** -sf */
41 LS_SORT_BY_FREQUENCY,
42 /** -sc */
43 LS_SORT_BY_CHANNELS,
44 /** -si */
45 LS_SORT_BY_IMAGE_ID,
46 /** -sy */
47 LS_SORT_BY_LYRICS_ID,
48 /** -sb */
49 LS_SORT_BY_BITRATE,
50 /** -sd */
51 LS_SORT_BY_DURATION,
52 /** -sa */
53 LS_SORT_BY_AUDIO_FORMAT,
54 /** -sh */
55 LS_SORT_BY_HASH,
56 };
57
58 /** The different listing modes of the ls command. */
59 enum ls_listing_mode {
60 /** Default listing mode. */
61 LS_MODE_SHORT,
62 /** -l or -ll */
63 LS_MODE_LONG,
64 /** -lv */
65 LS_MODE_VERBOSE,
66 /** -lm */
67 LS_MODE_MBOX,
68 /** -lc */
69 LS_MODE_CHUNKS
70 };
71
72 /** The flags accepted by the ls command. */
73 enum ls_flags {
74 /** -p */
75 LS_FLAG_FULL_PATH = 1,
76 /** -a */
77 LS_FLAG_ADMISSIBLE_ONLY = 2,
78 /** -r */
79 LS_FLAG_REVERSE = 4,
80 /** -d */
81 LS_FLAG_UNIXDATE = 8,
82 };
83
84 /**
85 * The size of the individual output fields of the ls command.
86 *
87 * These depend on the actual content being listed. If, for instance only files
88 * with duration less than an hour are being listed, then the duration with is
89 * made smaller because then the duration is listed as mm:ss rather than
90 * hh:mm:ss.
91 */
92 struct ls_widths {
93 /** size of the score field. */
94 unsigned short score_width;
95 /** size of the image id field. */
96 unsigned short image_id_width;
97 /** size of the lyrics id field. */
98 unsigned short lyrics_id_width;
99 /** size of the bitrate field. */
100 unsigned short bitrate_width;
101 /** size of the frequency field. */
102 unsigned short frequency_width;
103 /** size of the duration field. */
104 unsigned short duration_width;
105 /** size of the num played field. */
106 unsigned short num_played_width;
107 /** size of the amp field. */
108 unsigned short amp_width;
109 };
110
111 /** Data passed from the ls command handler to its callback function. */
112 struct ls_options {
113 /** The given command line flags. */
114 unsigned flags;
115 /** The sorting method given at the command line. */
116 enum ls_sorting_method sorting;
117 /** The given listing mode (short, long, verbose, mbox). */
118 enum ls_listing_mode mode;
119 /** The arguments passed to the ls command. */
120 char **patterns;
121 /** Number of non-option arguments. */
122 int num_patterns;
123 /** Used for long listing mode to align the output fields. */
124 struct ls_widths widths;
125 /** Size of the \a data array. */
126 uint32_t array_size;
127 /** Number of used entries in the data array. */
128 uint32_t num_matching_paths;
129 /** Array of matching entries. */
130 struct ls_data *data;
131 /** Used to sort the array. */
132 struct ls_data **data_ptr;
133 };
134
135 /**
136 * Describes the layout of the mmapped-afs info struct.
137 *
138 * \sa struct afs_info.
139 */
140 enum afsi_offsets {
141 /** Where .last_played is stored. */
142 AFSI_LAST_PLAYED_OFFSET = 0,
143 /** Storage position of the attributes bitmap. */
144 AFSI_ATTRIBUTES_OFFSET = 8,
145 /** Storage position of the .num_played field. */
146 AFSI_NUM_PLAYED_OFFSET = 16,
147 /** Storage position of the .image_id field. */
148 AFSI_IMAGE_ID_OFFSET = 20,
149 /** Storage position of the .lyrics_id field. */
150 AFSI_LYRICS_ID_OFFSET = 24,
151 /** Storage position of the .audio_format_id field. */
152 AFSI_AUDIO_FORMAT_ID_OFFSET = 28,
153 /** Storage position of the amplification field. */
154 AFSI_AMP_OFFSET = 29,
155 /** 2 bytes reserved space for future usage. */
156 AFSI_AUDIO_FORMAT_UNUSED_OFFSET = 30,
157 /** On-disk storage space needed. */
158 AFSI_SIZE = 32
159 };
160
161 /**
162 * Convert a struct afs_info to an osl object.
163 *
164 * \param afsi Pointer to the audio file info to be converted.
165 * \param obj Result pointer.
166 *
167 * \sa load_afsi().
168 */
169 void save_afsi(struct afs_info *afsi, struct osl_object *obj)
170 {
171 char *buf = obj->data;
172
173 write_u64(buf + AFSI_LAST_PLAYED_OFFSET, afsi->last_played);
174 write_u64(buf + AFSI_ATTRIBUTES_OFFSET, afsi->attributes);
175 write_u32(buf + AFSI_NUM_PLAYED_OFFSET, afsi->num_played);
176 write_u32(buf + AFSI_IMAGE_ID_OFFSET, afsi->image_id);
177 write_u32(buf + AFSI_LYRICS_ID_OFFSET, afsi->lyrics_id);
178 write_u8(buf + AFSI_AUDIO_FORMAT_ID_OFFSET,
179 afsi->audio_format_id);
180 write_u8(buf + AFSI_AMP_OFFSET, afsi->amp);
181 memset(buf + AFSI_AUDIO_FORMAT_UNUSED_OFFSET, 0, 2);
182 }
183
184 /**
185 * Get the audio file selector info struct stored in an osl object.
186 *
187 * \param afsi Points to the audio_file info structure to be filled in.
188 * \param obj The osl object holding the data.
189 *
190 * \return Positive on success, negative on errors. Possible errors: \p E_BAD_AFS.
191 *
192 * \sa save_afsi().
193 */
194 int load_afsi(struct afs_info *afsi, struct osl_object *obj)
195 {
196 char *buf = obj->data;
197 if (obj->size < AFSI_SIZE)
198 return -E_BAD_AFSI;
199 afsi->last_played = read_u64(buf + AFSI_LAST_PLAYED_OFFSET);
200 afsi->attributes = read_u64(buf + AFSI_ATTRIBUTES_OFFSET);
201 afsi->num_played = read_u32(buf + AFSI_NUM_PLAYED_OFFSET);
202 afsi->image_id = read_u32(buf + AFSI_IMAGE_ID_OFFSET);
203 afsi->lyrics_id = read_u32(buf + AFSI_LYRICS_ID_OFFSET);
204 afsi->audio_format_id = read_u8(buf +
205 AFSI_AUDIO_FORMAT_ID_OFFSET);
206 afsi->amp = read_u8(buf + AFSI_AMP_OFFSET);
207 return 1;
208 }
209
210 /** The columns of the audio file table. */
211 enum audio_file_table_columns {
212 /** The hash on the content of the audio file. */
213 AFTCOL_HASH,
214 /** The full path in the filesystem. */
215 AFTCOL_PATH,
216 /** The audio file selector info. */
217 AFTCOL_AFSI,
218 /** The audio format handler info. */
219 AFTCOL_AFHI,
220 /** The chunk table info and the chunk table of the audio file. */
221 AFTCOL_CHUNKS,
222 /** The number of columns of this table. */
223 NUM_AFT_COLUMNS
224 };
225
226 static struct osl_column_description aft_cols[] = {
227 [AFTCOL_HASH] = {
228 .storage_type = OSL_MAPPED_STORAGE,
229 .storage_flags = OSL_RBTREE | OSL_FIXED_SIZE | OSL_UNIQUE,
230 .name = "hash",
231 .compare_function = osl_hash_compare,
232 .data_size = HASH_SIZE
233 },
234 [AFTCOL_PATH] = {
235 .storage_type = OSL_MAPPED_STORAGE,
236 .storage_flags = OSL_RBTREE | OSL_UNIQUE,
237 .name = "path",
238 .compare_function = string_compare,
239 },
240 [AFTCOL_AFSI] = {
241 .storage_type = OSL_MAPPED_STORAGE,
242 .storage_flags = OSL_FIXED_SIZE,
243 .name = "afs_info",
244 .data_size = AFSI_SIZE
245 },
246 [AFTCOL_AFHI] = {
247 .storage_type = OSL_MAPPED_STORAGE,
248 .name = "afh_info",
249 },
250 [AFTCOL_CHUNKS] = {
251 .storage_type = OSL_DISK_STORAGE,
252 .name = "chunks",
253 }
254 };
255
256 static struct osl_table_description audio_file_table_desc = {
257 .name = "audio_files",
258 .num_columns = NUM_AFT_COLUMNS,
259 .flags = OSL_LARGE_TABLE,
260 .column_descriptions = aft_cols
261 };
262
263 /* We don't want * dot or dot-dot anywhere. */
264 static int verify_dotfile(const char *rest)
265 {
266 /*
267 * The first character was '.', but that has already been discarded, we
268 * now test the rest.
269 */
270 switch (*rest) {
271 case '\0': case '/': /* /foo/. and /foo/./bar are not ok */
272 return -1;
273 case '.': /* path start with /foo/.. */
274 if (rest[1] == '\0' || rest[1] == '/')
275 return -1; /* /foo/.. or /foo/../bar are not ok */
276 /* /foo/..bar is ok */
277 }
278 return 1;
279 }
280
281 /*
282 * We fundamentally don't like some paths: We don't want double slashes or
283 * slashes at the end that can make pathnames ambiguous.
284 */
285 static int verify_path(const char *orig_path, char **resolved_path)
286 {
287 char c;
288 size_t len;
289 char *path;
290
291 if (*orig_path != '/') /* we only accept absolute paths */
292 return -E_BAD_PATH;
293 len = strlen(orig_path);
294 *resolved_path = para_strdup(orig_path);
295 path = *resolved_path;
296 while (len > 1 && path[--len] == '/')
297 path[len] = '\0'; /* remove slash at the end */
298 c = *path++;
299 while (c) {
300 if (c == '/') {
301 c = *path++;
302 switch (c) {
303 case '/': /* double slash */
304 goto bad_path;
305 case '.':
306 if (verify_dotfile(path) < 0)
307 goto bad_path;
308 default:
309 continue;
310 }
311 }
312 c = *path++;
313 }
314 return 1;
315 bad_path:
316 free(*resolved_path);
317 return -E_BAD_PATH;
318 }
319
320 /** The on-disk layout of a afhi struct. */
321 enum afhi_offsets {
322 /** Where the number of seconds is stored. */
323 AFHI_SECONDS_TOTAL_OFFSET = 0,
324 /** Position of the bitrate. */
325 AFHI_BITRATE_OFFSET = 4,
326 /** Position of the frequency. */
327 AFHI_FREQUENCY_OFFSET = 8,
328 /** Location of the audio file header. */
329 AFHI_HEADER_OFFSET_OFFSET = 12,
330 /* Length of the audio file header. Zero means: No header. */
331 AFHI_HEADER_LEN_OFFSET = 16,
332 /** The total number of chunks (4 bytes). */
333 CHUNKS_TOTAL_OFFSET = 20,
334 /** The length of the audio file header (4 bytes). */
335 HEADER_LEN_OFFSET = 24,
336 /** The start of the audio file header (4 bytes). */
337 HEADER_OFFSET_OFFSET = 28,
338 /** The seconds part of the chunk time (4 bytes). */
339 CHUNK_TV_TV_SEC_OFFSET = 32,
340 /** The microseconds part of the chunk time (4 bytes). */
341 CHUNK_TV_TV_USEC_OFFSET = 36,
342 /** Number of channels is stored here. (1 byte) */
343 AFHI_CHANNELS_OFFSET = 40,
344 /** EOF timeout in ms. (2 byte) */
345 AFHI_EOF_OFFSET = 41,
346 /** The tag info position. */
347 AFHI_INFO_STRING_OFFSET = 43,
348 /** Minimal on-disk size of a valid afhi struct. */
349 MIN_AFHI_SIZE = 44
350 };
351
352 static unsigned sizeof_afhi_buf(const struct afh_info *afhi)
353 {
354 if (!afhi)
355 return 0;
356 return strlen(afhi->info_string) + MIN_AFHI_SIZE;
357 }
358
359 static void save_afhi(struct afh_info *afhi, char *buf)
360 {
361 if (!afhi)
362 return;
363 write_u32(buf + AFHI_SECONDS_TOTAL_OFFSET, afhi->seconds_total);
364 write_u32(buf + AFHI_BITRATE_OFFSET, afhi->bitrate);
365 write_u32(buf + AFHI_FREQUENCY_OFFSET, afhi->frequency);
366 write_u32(buf + AFHI_HEADER_OFFSET_OFFSET, afhi->header_offset);
367 write_u32(buf + AFHI_HEADER_LEN_OFFSET, afhi->header_len);
368 write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
369 write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
370 write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
371 write_u32(buf + HEADER_OFFSET_OFFSET, afhi->header_offset);
372 write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
373 write_u32(buf + CHUNK_TV_TV_USEC_OFFSET, afhi->chunk_tv.tv_usec);
374 write_u16(buf + AFHI_EOF_OFFSET, tv2ms(&afhi->eof_tv));
375 strcpy(buf + AFHI_INFO_STRING_OFFSET, afhi->info_string); /* OK */
376 }
377
378 static void load_afhi(const char *buf, struct afh_info *afhi)
379 {
380 afhi->seconds_total = read_u32(buf + AFHI_SECONDS_TOTAL_OFFSET);
381 afhi->bitrate = read_u32(buf + AFHI_BITRATE_OFFSET);
382 afhi->frequency = read_u32(buf + AFHI_FREQUENCY_OFFSET);
383 afhi->header_offset = read_u32(buf + AFHI_HEADER_OFFSET_OFFSET);
384 afhi->header_len = read_u32(buf + AFHI_HEADER_LEN_OFFSET);
385 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
386 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
387 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
388 afhi->header_offset = read_u32(buf + HEADER_OFFSET_OFFSET);
389 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
390 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC_OFFSET);
391 ms2tv(read_u16(buf + AFHI_EOF_OFFSET), &afhi->eof_tv);
392 afhi->info_string = para_strdup(buf + AFHI_INFO_STRING_OFFSET);
393 }
394
395 static unsigned sizeof_chunk_table(struct afh_info *afhi)
396 {
397 if (!afhi)
398 return 0;
399 return 4 * (afhi->chunks_total + 1);
400 }
401
402 static void save_chunk_table(struct afh_info *afhi, char *buf)
403 {
404 int i;
405
406 for (i = 0; i <= afhi->chunks_total; i++)
407 write_u32(buf + 4 * i, afhi->chunk_table[i]);
408 }
409
410 static void load_chunk_table(struct afh_info *afhi, char *buf)
411 {
412 int i;
413
414 afhi->chunk_table = para_malloc(sizeof_chunk_table(afhi));
415 for (i = 0; i <= afhi->chunks_total; i++)
416 afhi->chunk_table[i] = read_u32(buf + 4 * i);
417 }
418
419 /**
420 * Get the row of the audio file table corresponding to the given path.
421 *
422 * \param path The full path of the audio file.
423 * \param row Result pointer.
424 *
425 * \return The return value of the underlying call to osl_get_row().
426 */
427 int aft_get_row_of_path(const char *path, struct osl_row **row)
428 {
429 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
430
431 return osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row);
432 }
433
434 /**
435 * Get the row of the audio file table corresponding to the given hash value.
436 *
437 * \param hash The hash value of the desired audio file.
438 * \param row resul pointer.
439 *
440 * \return The return value of the underlying call to osl_get_row().
441 */
442 int aft_get_row_of_hash(HASH_TYPE *hash, struct osl_row **row)
443 {
444 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
445 return osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row);
446 }
447
448 /**
449 * Get the osl object holding the audio file selector info of a row.
450 *
451 * \param row Pointer to a row in the audio file table.
452 * \param obj Result pointer.
453 *
454 * \return The return value of the underlying call to osl_get_object().
455 */
456 int get_afsi_object_of_row(const struct osl_row *row, struct osl_object *obj)
457 {
458 return osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj);
459 }
460
461 /**
462 * Get the osl object holding the audio file selector info, given a path.
463 *
464 *
465 * \param path The full path of the audio file.
466 * \param obj Result pointer.
467 *
468 * \return Positive on success, negative on errors.
469 */
470 int get_afsi_object_of_path(const char *path, struct osl_object *obj)
471 {
472 struct osl_row *row;
473 int ret = aft_get_row_of_path(path, &row);
474 if (ret < 0)
475 return ret;
476 return get_afsi_object_of_row(row, obj);
477 }
478
479 /**
480 * Get the audio file selector info, given a row of the audio file table.
481 *
482 * \param row Pointer to a row in the audio file table.
483 * \param afsi Result pointer.
484 *
485 * \return Positive on success, negative on errors.
486 */
487 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
488 {
489 struct osl_object obj;
490 int ret = get_afsi_object_of_row(row, &obj);
491 if (ret < 0)
492 return ret;
493 return load_afsi(afsi, &obj);
494 }
495
496 /**
497 * Get the audio file selector info, given the path of an audio table.
498 *
499 * \param path The full path of the audio file.
500 * \param afsi Result pointer.
501 *
502 * \return Positive on success, negative on errors.
503 */
504 int get_afsi_of_path(const char *path, struct afs_info *afsi)
505 {
506 struct osl_object obj;
507 int ret = get_afsi_object_of_path(path, &obj);
508 if (ret < 0)
509 return ret;
510 return load_afsi(afsi, &obj);
511 }
512
513 /**
514 * Get the path of an audio file, given a row of the audio file table.
515 *
516 * \param row Pointer to a row in the audio file table.
517 * \param path Result pointer.
518 *
519 * The result is a pointer to mmapped data. The caller must not attempt
520 * to free it.
521 *
522 * \return Standard.
523 */
524 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
525 {
526 struct osl_object path_obj;
527 int ret = osl_get_object(audio_file_table, row, AFTCOL_PATH,
528 &path_obj);
529 if (ret < 0)
530 return ret;
531 *path = path_obj.data;
532 return 1;
533 }
534
535 /**
536 * Get the object containing the hash value of an audio file, given a row.
537 *
538 * \param row Pointer to a row of the audio file table.
539 * \param obj Result pointer.
540 *
541 * \return The return value of the underlying call to osl_get_object().
542 *
543 * \sa get_hash_of_row().
544 */
545 static int get_hash_object_of_aft_row(const struct osl_row *row, struct osl_object *obj)
546 {
547 return osl_get_object(audio_file_table, row, AFTCOL_HASH, obj);
548 }
549
550 /**
551 * Get the hash value of an audio file, given a row of the audio file table.
552 *
553 * \param row Pointer to a row of the audio file table.
554 * \param hash Result pointer.
555 *
556 * \a hash points to mapped data and must not be freed by the caller.
557 *
558 * \return The return value of the underlying call to
559 * get_hash_object_of_aft_row().
560 */
561 static int get_hash_of_row(const struct osl_row *row, HASH_TYPE **hash)
562 {
563 struct osl_object obj;
564 int ret = get_hash_object_of_aft_row(row, &obj);
565
566 if (ret < 0)
567 return ret;
568 *hash = obj.data;
569 return 1;
570 }
571
572 /**
573 * Get the audio format handler info, given a row of the audio file table.
574 *
575 * \param row Pointer to a row of the audio file table.
576 * \param afhi Result pointer.
577 *
578 * \return The return value of the underlying call to osl_get_object().
579 *
580 * \sa get_chunk_table_of_row().
581 */
582 int get_afhi_of_row(const struct osl_row *row, struct afh_info *afhi)
583 {
584 struct osl_object obj;
585 int ret = osl_get_object(audio_file_table, row, AFTCOL_AFHI,
586 &obj);
587 if (ret < 0)
588 return ret;
589 load_afhi(obj.data, afhi);
590 return 1;
591 }
592
593 /* returns shmid on success */
594 static int save_afd(struct audio_file_data *afd)
595 {
596 size_t size = sizeof(*afd) + sizeof_chunk_table(&afd->afhi);
597 int shmid, ret = shm_new(size);
598 void *shm_afd;
599 char *buf;
600
601 if (ret < 0)
602 return ret;
603 shmid = ret;
604 ret = shm_attach(shmid, ATTACH_RW, &shm_afd);
605 if (ret < 0)
606 goto err;
607 *(struct audio_file_data *)shm_afd = *afd;
608 buf = shm_afd;
609 buf += sizeof(*afd);
610 save_chunk_table(&afd->afhi, buf);
611 shm_detach(shm_afd);
612 return shmid;
613 err:
614 shm_destroy(shmid);
615 return ret;
616 }
617
618 int load_afd(int shmid, struct audio_file_data *afd)
619 {
620 void *shm_afd;
621 char *buf;
622 int ret;
623
624 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
625 if (ret < 0)
626 return ret;
627 *afd = *(struct audio_file_data *)shm_afd;
628 buf = shm_afd;
629 buf += sizeof(*afd);
630 load_chunk_table(&afd->afhi, buf);
631 shm_detach(shm_afd);
632 return 1;
633 }
634
635 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
636 time_t current_time, enum ls_listing_mode lm)
637 {
638 struct tm t;
639
640 if (!localtime_r((time_t *)seconds, &t))
641 return -E_LOCALTIME;
642 if (lm == LS_MODE_MBOX) {
643 if (!strftime(buf, size, "%c", &t))
644 return -E_STRFTIME;
645 return 1;
646 }
647 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
648 if (!strftime(buf, size, "%b %e %k:%M", &t))
649 return -E_STRFTIME;
650 return 1;
651 }
652 if (!strftime(buf, size, "%b %e %Y", &t))
653 return -E_STRFTIME;
654 return 1;
655 }
656
657 /** Compute the number of (decimal) digits of a number. */
658 #define GET_NUM_DIGITS(x, num) { \
659 typeof((x)) _tmp = PARA_ABS(x); \
660 *num = 1; \
661 if ((_tmp)) \
662 while ((_tmp) > 9) { \
663 (_tmp) /= 10; \
664 (*num)++; \
665 } \
666 }
667
668 static short unsigned get_duration_width(int seconds)
669 {
670 short unsigned width;
671 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
672
673 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
674 return 4 + (mins > 9);
675 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
676 GET_NUM_DIGITS(hours, &width);
677 return width + 6;
678 }
679
680 static void get_duration_buf(int seconds, char *buf, struct ls_options *opts)
681 {
682 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
683 short unsigned max_width;
684
685 if (!hours) { /* m:ss or mm:ss */
686 max_width = opts->mode == LS_MODE_LONG?
687 opts->widths.duration_width : 4;
688 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
689 } else { /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
690 max_width = opts->mode == LS_MODE_LONG?
691 opts->widths.duration_width : 7;
692 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
693 seconds % 60);
694 }
695 }
696
697 static char *make_attribute_lines(const char *att_bitmap, struct afs_info *afsi)
698 {
699 char *att_text, *att_lines;
700
701 get_attribute_text(&afsi->attributes, " ", &att_text);
702 if (!att_text)
703 return para_strdup(att_bitmap);
704 att_lines = make_message("%s: %s\n%s: %s",
705 status_item_list[SI_ATTRIBUTES_BITMAP], att_bitmap,
706 status_item_list[SI_ATTRIBUTES_TXT], att_text);
707 free(att_text);
708 return att_lines;
709 }
710
711 static char *make_lyrics_lines(struct afs_info *afsi)
712 {
713 char *lyrics_name;
714
715 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
716 return make_message("%s: %u\n%s: %s\n",
717 status_item_list[SI_LYRICS_ID], afsi->lyrics_id,
718 status_item_list[SI_LYRICS_NAME], lyrics_name?
719 lyrics_name : "(none)");
720 }
721
722 static char *make_image_lines(struct afs_info *afsi)
723 {
724 char *image_name;
725 img_get_name_by_id(afsi->image_id, &image_name);
726 return make_message("%s: %u\n%s: %s\n",
727 status_item_list[SI_IMAGE_ID], afsi->image_id,
728 status_item_list[SI_IMAGE_NAME], image_name?
729 image_name : "(none)");
730 }
731
732 static char *make_filename_lines(const char *path, unsigned flags)
733 {
734 char *dirname, *ret;
735 const char *basename;
736
737 if (!(flags & LS_FLAG_FULL_PATH))
738 return make_message("%s: %s\n",
739 status_item_list[SI_BASENAME], path);
740 basename = para_basename(path),
741 dirname = para_dirname(path);
742 ret = make_message("%s: %s\n%s: %s\n%s: %s\n",
743 status_item_list[SI_PATH], path,
744 status_item_list[SI_DIRECTORY], dirname? dirname : "?",
745 status_item_list[SI_BASENAME], basename? basename : "?");
746 free(dirname);
747 return ret;
748 }
749
750 static int print_chunk_table(struct ls_data *d, struct para_buffer *b)
751 {
752 struct osl_object chunk_table_obj;
753 struct osl_row *aft_row;
754 int ret, i;
755 char *buf;
756
757 ret = aft_get_row_of_hash(d->hash, &aft_row);
758 if (ret < 0)
759 return ret;
760 ret = osl_open_disk_object(audio_file_table, aft_row,
761 AFTCOL_CHUNKS, &chunk_table_obj);
762 if (ret < 0)
763 return ret;
764 ret = para_printf(b, "%s\n"
765 "chunk_time: %lu:%lu\nchunk_offsets: ",
766 d->path,
767 (long unsigned) d->afhi.chunk_tv.tv_sec,
768 (long unsigned) d->afhi.chunk_tv.tv_usec
769 );
770 if (ret < 0)
771 goto out;
772 buf = chunk_table_obj.data;
773 for (i = 0; i <= d->afhi.chunks_total; i++) {
774 ret = para_printf(b, "%u ", (unsigned) read_u32(buf + 4 * i));
775 if (ret < 0)
776 goto out;
777 }
778 ret = para_printf(b, "\n");
779 out:
780 osl_close_disk_object(&chunk_table_obj);
781 return ret;
782 }
783
784 static int print_list_item(struct ls_data *d, struct ls_options *opts,
785 struct para_buffer *b, time_t current_time)
786 {
787 int ret;
788 char att_buf[65];
789 char last_played_time[30];
790 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
791 char score_buf[30] = "";
792 struct afs_info *afsi = &d->afsi;
793 struct afh_info *afhi = &d->afhi;
794 struct ls_widths *w = &opts->widths;
795 int have_score = opts->flags & LS_FLAG_ADMISSIBLE_ONLY;
796 char asc_hash[2 * HASH_SIZE + 1];
797 char *att_lines, *lyrics_lines, *image_lines, *filename_lines;
798
799 if (opts->mode == LS_MODE_SHORT) {
800 ret = para_printf(b, "%s\n", d->path);
801 goto out;
802 }
803 if (opts->mode == LS_MODE_CHUNKS) {
804 ret = print_chunk_table(d, b);
805 goto out;
806 }
807 get_attribute_bitmap(&afsi->attributes, att_buf);
808 if (opts->flags & LS_FLAG_UNIXDATE)
809 sprintf(last_played_time, "%llu",
810 (long long unsigned)afsi->last_played);
811 else {
812 ret = get_local_time(&afsi->last_played, last_played_time,
813 sizeof(last_played_time), current_time, opts->mode);
814 if (ret < 0)
815 goto out;
816 }
817 get_duration_buf(afhi->seconds_total, duration_buf, opts);
818 if (have_score) {
819 if (opts->mode == LS_MODE_LONG)
820 sprintf(score_buf, "%*li ", w->score_width, d->score);
821 else
822 sprintf(score_buf, "%li ", d->score);
823 }
824
825 if (opts->mode == LS_MODE_LONG) {
826 ret = para_printf(b,
827 "%s" /* score */
828 "%s " /* attributes */
829 "%*u " /* amp */
830 "%*d " /* image_id */
831 "%*d " /* lyrics_id */
832 "%*d " /* bitrate */
833 "%s " /* audio format */
834 "%*d " /* frequency */
835 "%d " /* channels */
836 "%s " /* duration */
837 "%*d " /* num_played */
838 "%s " /* last_played */
839 "%s\n", /* path */
840 score_buf,
841 att_buf,
842 w->amp_width, afsi->amp,
843 w->image_id_width, afsi->image_id,
844 w->lyrics_id_width, afsi->lyrics_id,
845 w->bitrate_width, afhi->bitrate,
846 audio_format_name(afsi->audio_format_id),
847 w->frequency_width, afhi->frequency,
848 afhi->channels,
849 duration_buf,
850 w->num_played_width, afsi->num_played,
851 last_played_time,
852 d->path
853 );
854 goto out;
855 }
856 hash_to_asc(d->hash, asc_hash);
857 att_lines = make_attribute_lines(att_buf, afsi);
858 lyrics_lines = make_lyrics_lines(afsi);
859 image_lines = make_image_lines(afsi);
860 filename_lines = make_filename_lines(d->path, opts->flags);
861 if (opts->mode == LS_MODE_MBOX) {
862 const char *bn = para_basename(d->path);
863 ret = para_printf(b,
864 "From foo@localhost %s\n"
865 "Received: from\nTo: bar\nFrom: a\n"
866 "Subject: %s\n\n",
867 last_played_time,
868 bn? bn : "?");
869 if (ret < 0)
870 goto out;
871 }
872 ret = para_printf(b,
873 "%s" /* filename stuff */
874 "%s%s%s%s" /* score */
875 "%s\n" /* attributes */
876 "%s: %s\n" /* hash */
877 "%s" /* image id, image name */
878 "%s" /* lyrics */
879 "%s: %dkbit/s\n" /* bitrate */
880 "%s: %s\n" /* format */
881 "%s: %dHz\n" /* frequency */
882 "%s: %d\n" /* channels */
883 "%s: %s\n" /* duration */
884 "%s: %lu\n" /* seconds total */
885 "%s: %s\n" /* last played time */
886 "%s: %d\n" /* num_played */
887 "%s: %u\n" /* ampplification */
888 "%s" /* tag info */
889 "%s: %lu\n" /* chunk time */
890 "%s: %lu\n", /* num chunks */
891 filename_lines,
892 have_score? status_item_list[SI_SCORE] : "",
893 have_score? ": " : "",
894 score_buf,
895 have_score? "\n" : "",
896 att_lines,
897 status_item_list[SI_HASH], asc_hash,
898 image_lines,
899 lyrics_lines,
900 status_item_list[SI_BITRATE], afhi->bitrate,
901 status_item_list[SI_FORMAT], audio_format_name(afsi->audio_format_id),
902 status_item_list[SI_FREQUENCY], afhi->frequency,
903 status_item_list[SI_CHANNELS], afhi->channels,
904 status_item_list[SI_DURATION], duration_buf,
905 status_item_list[SI_SECONDS_TOTAL], afhi->seconds_total,
906 status_item_list[SI_LAST_PLAYED], last_played_time,
907 status_item_list[SI_NUM_PLAYED], afsi->num_played,
908 status_item_list[SI_AMPLIFICATION], afsi->amp,
909 afhi->info_string,
910 status_item_list[SI_CHUNK_TIME], tv2ms(&afhi->chunk_tv),
911 status_item_list[SI_NUM_CHUNKS], afhi->chunks_total
912 );
913 if (ret < 0)
914 goto out;
915 if (opts->mode == LS_MODE_MBOX) {
916 struct osl_object lyrics_def;
917 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
918 if (lyrics_def.data) {
919 ret = para_printf(b, "Lyrics:\n~~~~~~~\n%s",
920 (char *)lyrics_def.data);
921 osl_close_disk_object(&lyrics_def);
922 }
923 }
924 free(att_lines);
925 free(lyrics_lines);
926 free(image_lines);
927 free(filename_lines);
928 out:
929 free(afhi->info_string);
930 return ret;
931 }
932
933 /**
934 * Write a list of audio-file related status items with empty values.
935 *
936 * \param buf Result pointer.
937 *
938 * This is used by vss when currently no audio file is open.
939 */
940 void make_empty_status_items(char *buf)
941 {
942 sprintf(buf,
943 "%s: \n" /* path */
944 "%s: \n" /* dirname */
945 "%s: \n" /* basename */
946 "%s: \n" /* score */
947 "%s: \n" /* attributes bitmap */
948 "%s: \n" /* attributes txt */
949 "%s: \n" /* hash */
950 "%s: \n" /* image id */
951 "%s: \n" /* image name */
952 "%s: \n" /* lyrics id */
953 "%s: \n" /* lyrics name */
954 "%s: \n" /* bitrate */
955 "%s: \n" /* format */
956 "%s: \n" /* frequency */
957 "%s: \n" /* channels */
958 "%s: \n" /* duration */
959 "%s: \n" /* seconds total */
960 "%s: \n" /* num played */
961 "%s: \n" /* last played */
962 "%s: \n" /* audio file info */
963 "%s: \n" /* taginfo1 */
964 "%s: \n" /* taginfo2 */
965 "%s: \n" /* amplification */
966 ,
967 status_item_list[SI_PATH],
968 status_item_list[SI_DIRECTORY],
969 status_item_list[SI_BASENAME],
970 status_item_list[SI_SCORE],
971 status_item_list[SI_ATTRIBUTES_BITMAP],
972 status_item_list[SI_ATTRIBUTES_TXT],
973 status_item_list[SI_HASH],
974 status_item_list[SI_IMAGE_ID],
975 status_item_list[SI_IMAGE_NAME],
976 status_item_list[SI_LYRICS_ID],
977 status_item_list[SI_LYRICS_NAME],
978 status_item_list[SI_BITRATE],
979 status_item_list[SI_FORMAT],
980 status_item_list[SI_FREQUENCY],
981 status_item_list[SI_CHANNELS],
982 status_item_list[SI_DURATION],
983 status_item_list[SI_SECONDS_TOTAL],
984 status_item_list[SI_NUM_PLAYED],
985 status_item_list[SI_LAST_PLAYED],
986 status_item_list[SI_AUDIO_FILE_INFO],
987 status_item_list[SI_TAGINFO1],
988 status_item_list[SI_TAGINFO2],
989 status_item_list[SI_AMPLIFICATION]
990 );
991 }
992
993 static void fixup_taginfo(char *begin, char *end)
994 {
995 char *p = begin;
996
997 for (;;) {
998 p = strchr(p, '\n');
999 if (!p)
1000 break;
1001 if (p >= end - 1)
1002 break;
1003 *p = ' ';
1004 p++;
1005 }
1006 }
1007
1008 /* crap, remove this ASAP. */
1009 static int fixup_info_string(char *info_string)
1010 {
1011 char *t1, *t2, *end;
1012
1013 if (strncmp(info_string, "audio_file_info:", 16))
1014 return -ERRNO_TO_PARA_ERROR(EINVAL);
1015 t1 = strstr(info_string, "\ntaginfo1:");
1016 if (!t1)
1017 return -ERRNO_TO_PARA_ERROR(EINVAL);
1018 t2 = strstr(info_string, "\ntaginfo2: ");
1019 if (!t2)
1020 return -ERRNO_TO_PARA_ERROR(EINVAL);
1021
1022 end = t2 + strlen(t2) + 1;
1023 fixup_taginfo(info_string + 16, t1);
1024 fixup_taginfo(t1 + 10, t2);
1025 fixup_taginfo(t2 + 10, end);
1026
1027 if (t1 - info_string < 80 && t2 - t1 < 80 && end - t2 < 80)
1028 return 0;
1029 if (t1 - info_string >= 80) {
1030 memmove(info_string + 80, t1, end - t1);
1031 t1 = info_string + 80;
1032 t2 -= t1 - info_string - 80;
1033 end -= t1 - info_string - 80;
1034 }
1035 if (t2 - t1 >= 80) {
1036 memmove(t1 + 80, t2, end - t2);
1037 end -= t2 - t1 - 80;
1038 t2 = t1 + 80;
1039 }
1040 if (end - t2 >= 80) {
1041 t2[78] = '\n';
1042 t2[79] = '\0';
1043 }
1044 return 1;
1045 }
1046
1047 static int make_status_items(struct audio_file_data *afd,
1048 struct afs_info *afsi, char *path, long score,
1049 HASH_TYPE *hash)
1050 {
1051 struct ls_data d = {
1052 .afhi = afd->afhi,
1053 .afsi = *afsi,
1054 .path = path,
1055 .score = score,
1056 .hash = hash
1057 };
1058 struct ls_options opts = {
1059 .flags = LS_FLAG_FULL_PATH | LS_FLAG_ADMISSIBLE_ONLY,
1060 .mode = LS_MODE_VERBOSE,
1061 };
1062 struct para_buffer pb = {.max_size = VERBOSE_LS_OUTPUT_SIZE - 1};
1063 time_t current_time;
1064 int ret;
1065
1066 ret = fixup_info_string(afd->afhi.info_string);
1067 if (ret < 0) {
1068 PARA_WARNING_LOG("ignoring invalid tag info\n");
1069 afd->afhi.info_string[0] = '\0';
1070 } else if (ret)
1071 PARA_NOTICE_LOG("truncated overlong tag info\n");
1072 time(&current_time);
1073 ret = print_list_item(&d, &opts, &pb, current_time); /* frees info string */
1074 afd->afhi.info_string = NULL;
1075 if (ret < 0)
1076 goto out;
1077 strncpy(afd->verbose_ls_output, pb.buf, VERBOSE_LS_OUTPUT_SIZE);
1078 afd->verbose_ls_output[VERBOSE_LS_OUTPUT_SIZE - 1] = '\0';
1079 out:
1080 free(pb.buf);
1081 return ret;
1082 }
1083
1084 /**
1085 * Mmap the given audio file and update statistics.
1086 *
1087 * \param aft_row Determines the audio file to be opened and updated.
1088 * \param score The score of the audio file.
1089 * \param afd Result pointer.
1090 *
1091 * On success, the numplayed field of the audio file selector info is increased
1092 * and the lastplayed time is set to the current time. Finally, the score of
1093 * the audio file is updated.
1094 *
1095 * \return Positive shmid on success, negative on errors.
1096 */
1097 int open_and_update_audio_file(struct osl_row *aft_row, long score,
1098 struct audio_file_data *afd)
1099 {
1100 HASH_TYPE *aft_hash, file_hash[HASH_SIZE];
1101 struct osl_object afsi_obj;
1102 struct afs_info old_afsi, new_afsi;
1103 int ret = get_hash_of_row(aft_row, &aft_hash);
1104 struct afsi_change_event_data aced;
1105 struct osl_object map, chunk_table_obj;
1106 char *path;
1107
1108 if (ret < 0)
1109 return ret;
1110 ret = get_audio_file_path_of_row(aft_row, &path);
1111 if (ret < 0)
1112 return ret;
1113 ret = get_afsi_object_of_row(aft_row, &afsi_obj);
1114 if (ret < 0)
1115 return ret;
1116 ret = load_afsi(&old_afsi, &afsi_obj);
1117 if (ret < 0)
1118 return ret;
1119 ret = get_afhi_of_row(aft_row, &afd->afhi);
1120 if (ret < 0)
1121 return ret;
1122 afd->afhi.chunk_table = NULL;
1123 ret = osl_open_disk_object(audio_file_table, aft_row,
1124 AFTCOL_CHUNKS, &chunk_table_obj);
1125 if (ret < 0)
1126 goto err;
1127 ret = mmap_full_file(path, O_RDONLY, &map.data,
1128 &map.size, &afd->fd);
1129 if (ret < 0)
1130 goto err;
1131 hash_function(map.data, map.size, file_hash);
1132 ret = hash_compare(file_hash, aft_hash);
1133 para_munmap(map.data, map.size);
1134 if (ret) {
1135 ret = -E_HASH_MISMATCH;
1136 goto err;
1137 }
1138 new_afsi = old_afsi;
1139 new_afsi.num_played++;
1140 new_afsi.last_played = time(NULL);
1141 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
1142
1143 load_chunk_table(&afd->afhi, chunk_table_obj.data);
1144 ret = make_status_items(afd, &old_afsi, path, score, file_hash);
1145 if (ret < 0)
1146 goto err;
1147 aced.aft_row = aft_row;
1148 aced.old_afsi = &old_afsi;
1149 afs_event(AFSI_CHANGE, NULL, &aced);
1150 ret = save_afd(afd);
1151 err:
1152 free(afd->afhi.chunk_table);
1153 free(afd->afhi.info_string);
1154 osl_close_disk_object(&chunk_table_obj);
1155 return ret;
1156 }
1157
1158 static int ls_audio_format_compare(const void *a, const void *b)
1159 {
1160 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1161 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
1162 }
1163
1164 static int ls_duration_compare(const void *a, const void *b)
1165 {
1166 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1167 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
1168 }
1169
1170 static int ls_bitrate_compare(const void *a, const void *b)
1171 {
1172 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1173 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
1174 }
1175
1176 static int ls_lyrics_id_compare(const void *a, const void *b)
1177 {
1178 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1179 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
1180 }
1181
1182 static int ls_image_id_compare(const void *a, const void *b)
1183 {
1184 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1185 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
1186 }
1187
1188 static int ls_channels_compare(const void *a, const void *b)
1189 {
1190 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1191 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
1192 }
1193
1194 static int ls_frequency_compare(const void *a, const void *b)
1195 {
1196 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1197 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
1198 }
1199
1200 static int ls_num_played_compare(const void *a, const void *b)
1201 {
1202 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1203 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1204 }
1205
1206 static int ls_last_played_compare(const void *a, const void *b)
1207 {
1208 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1209 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1210 }
1211
1212 static int ls_score_compare(const void *a, const void *b)
1213 {
1214 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1215 return NUM_COMPARE(d1->score, d2->score);
1216 }
1217
1218 static int ls_path_compare(const void *a, const void *b)
1219 {
1220 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1221 return strcmp(d1->path, d2->path);
1222 }
1223
1224 static int sort_matching_paths(struct ls_options *options)
1225 {
1226 size_t nmemb = options->num_matching_paths;
1227 size_t size = sizeof(*options->data_ptr);
1228 int (*compar)(const void *, const void *);
1229 int i;
1230
1231 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1232 for (i = 0; i < nmemb; i++)
1233 options->data_ptr[i] = options->data + i;
1234
1235 /* In these cases the array is already sorted */
1236 if (options->sorting == LS_SORT_BY_PATH
1237 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1238 && (options->flags & LS_FLAG_FULL_PATH))
1239 return 1;
1240 if (options->sorting == LS_SORT_BY_SCORE &&
1241 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1242 return 1;
1243
1244 switch (options->sorting) {
1245 case LS_SORT_BY_PATH:
1246 compar = ls_path_compare; break;
1247 case LS_SORT_BY_SCORE:
1248 compar = ls_score_compare; break;
1249 case LS_SORT_BY_LAST_PLAYED:
1250 compar = ls_last_played_compare; break;
1251 case LS_SORT_BY_NUM_PLAYED:
1252 compar = ls_num_played_compare; break;
1253 case LS_SORT_BY_FREQUENCY:
1254 compar = ls_frequency_compare; break;
1255 case LS_SORT_BY_CHANNELS:
1256 compar = ls_channels_compare; break;
1257 case LS_SORT_BY_IMAGE_ID:
1258 compar = ls_image_id_compare; break;
1259 case LS_SORT_BY_LYRICS_ID:
1260 compar = ls_lyrics_id_compare; break;
1261 case LS_SORT_BY_BITRATE:
1262 compar = ls_bitrate_compare; break;
1263 case LS_SORT_BY_DURATION:
1264 compar = ls_duration_compare; break;
1265 case LS_SORT_BY_AUDIO_FORMAT:
1266 compar = ls_audio_format_compare; break;
1267 default:
1268 return -E_BAD_SORT;
1269 }
1270 qsort(options->data_ptr, nmemb, size, compar);
1271 return 1;
1272 }
1273
1274 /* row is either an aft_row or a row of the score table */
1275 /* TODO: Only compute widths if we need them */
1276 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1277 {
1278 int ret, i;
1279 struct ls_options *options = ls_opts;
1280 struct ls_data *d;
1281 struct ls_widths *w;
1282 unsigned short num_digits;
1283 unsigned tmp;
1284 struct osl_row *aft_row;
1285 long score;
1286 char *path;
1287
1288 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1289 ret = get_score_and_aft_row(row, &score, &aft_row);
1290 if (ret < 0)
1291 return ret;
1292 } else
1293 aft_row = row;
1294 ret = get_audio_file_path_of_row(aft_row, &path);
1295 if (ret < 0)
1296 return ret;
1297 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1298 char *p = strrchr(path, '/');
1299 if (p)
1300 path = p + 1;
1301 }
1302 if (options->num_patterns) {
1303 for (i = 0; i < options->num_patterns; i++) {
1304 ret = fnmatch(options->patterns[i], path, 0);
1305 if (!ret)
1306 break;
1307 if (ret == FNM_NOMATCH)
1308 continue;
1309 return -E_FNMATCH;
1310 }
1311 if (i >= options->num_patterns) /* no match */
1312 return 1;
1313 }
1314 tmp = options->num_matching_paths++;
1315 if (options->num_matching_paths > options->array_size) {
1316 options->array_size++;
1317 options->array_size *= 2;
1318 options->data = para_realloc(options->data, options->array_size
1319 * sizeof(*options->data));
1320 }
1321 d = options->data + tmp;
1322 ret = get_afsi_of_row(aft_row, &d->afsi);
1323 if (ret < 0)
1324 return ret;
1325 ret = get_afhi_of_row(aft_row, &d->afhi);
1326 if (ret < 0)
1327 return ret;
1328 d->path = path;
1329 ret = get_hash_of_row(aft_row, &d->hash);
1330 if (ret < 0)
1331 goto err;
1332 w = &options->widths;
1333 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1334 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1335 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1336 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1337 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1338 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1339 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1340 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1341 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1342 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1343 /* get the number of chars to print this amount of time */
1344 num_digits = get_duration_width(d->afhi.seconds_total);
1345 w->duration_width = PARA_MAX(w->duration_width, num_digits);
1346 GET_NUM_DIGITS(d->afsi.amp, &num_digits);
1347 w->amp_width = PARA_MAX(w->amp_width, num_digits);
1348 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1349 GET_NUM_DIGITS(score, &num_digits);
1350 num_digits++; /* add one for the sign (space or "-") */
1351 w->score_width = PARA_MAX(w->score_width, num_digits);
1352 d->score = score;
1353 }
1354 return 1;
1355 err:
1356 free(d->afhi.info_string);
1357 return ret;
1358 }
1359
1360 static void com_ls_callback(int fd, const struct osl_object *query)
1361 {
1362 struct ls_options *opts = query->data;
1363 char *p, *pattern_start = (char *)query->data + sizeof(*opts);
1364 struct para_buffer b = {.max_size = SHMMAX,
1365 .max_size_handler = pass_buffer_as_shm, .private_data = &fd};
1366 int i = 0, ret;
1367 time_t current_time;
1368
1369
1370 if (opts->num_patterns) {
1371 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1372 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1373 opts->patterns[i] = p;
1374 p += strlen(p) + 1;
1375 }
1376 } else
1377 opts->patterns = NULL;
1378 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1379 ret = admissible_file_loop(opts, prepare_ls_row);
1380 else
1381 ret = osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1382 prepare_ls_row);
1383 if (ret < 0)
1384 goto out;
1385 if (!opts->num_matching_paths)
1386 goto out;
1387 ret = sort_matching_paths(opts);
1388 if (ret < 0)
1389 goto out;
1390 time(&current_time);
1391 if (opts->flags & LS_FLAG_REVERSE)
1392 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1393 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1394 if (ret < 0)
1395 goto out;
1396 }
1397 else
1398 for (i = 0; i < opts->num_matching_paths; i++) {
1399 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1400 if (ret < 0)
1401 goto out;
1402 }
1403 out:
1404 if (b.offset)
1405 pass_buffer_as_shm(b.buf, b.offset, &fd);
1406 free(b.buf);
1407 free(opts->data);
1408 free(opts->data_ptr);
1409 free(opts->patterns);
1410 }
1411
1412 /*
1413 * TODO: flags -h (sort by hash)
1414 */
1415 int com_ls(struct rc4_context *rc4c, int argc, char * const * const argv)
1416 {
1417 int i, ret;
1418 unsigned flags = 0;
1419 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1420 enum ls_listing_mode mode = LS_MODE_SHORT;
1421 struct ls_options opts = {.patterns = NULL};
1422 struct osl_object query = {.data = &opts, .size = sizeof(opts)};
1423
1424 for (i = 1; i < argc; i++) {
1425 const char *arg = argv[i];
1426 if (arg[0] != '-')
1427 break;
1428 if (!strcmp(arg, "--")) {
1429 i++;
1430 break;
1431 }
1432 if (!strncmp(arg, "-l", 2)) {
1433 if (!*(arg + 2)) {
1434 mode = LS_MODE_LONG;
1435 continue;
1436 }
1437 if (*(arg + 3))
1438 return -E_AFT_SYNTAX;
1439 switch(*(arg + 2)) {
1440 case 's':
1441 mode = LS_MODE_SHORT;
1442 continue;
1443 case 'l':
1444 mode = LS_MODE_LONG;
1445 continue;
1446 case 'v':
1447 mode = LS_MODE_VERBOSE;
1448 continue;
1449 case 'm':
1450 mode = LS_MODE_MBOX;
1451 continue;
1452 case 'c':
1453 mode = LS_MODE_CHUNKS;
1454 continue;
1455 default:
1456 return -E_AFT_SYNTAX;
1457 }
1458 }
1459 if (!strcmp(arg, "-p")) {
1460 flags |= LS_FLAG_FULL_PATH;
1461 continue;
1462 }
1463 if (!strcmp(arg, "-a")) {
1464 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1465 continue;
1466 }
1467 if (!strcmp(arg, "-r")) {
1468 flags |= LS_FLAG_REVERSE;
1469 continue;
1470 }
1471 if (!strcmp(arg, "-d")) {
1472 flags |= LS_FLAG_UNIXDATE;
1473 continue;
1474 }
1475 if (!strncmp(arg, "-s", 2)) {
1476 if (!*(arg + 2) || *(arg + 3))
1477 return -E_AFT_SYNTAX;
1478 switch(*(arg + 2)) {
1479 case 'p':
1480 sort = LS_SORT_BY_PATH;
1481 continue;
1482 case 's': /* -ss implies -a */
1483 sort = LS_SORT_BY_SCORE;
1484 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1485 continue;
1486 case 'l':
1487 sort = LS_SORT_BY_LAST_PLAYED;
1488 continue;
1489 case 'n':
1490 sort = LS_SORT_BY_NUM_PLAYED;
1491 continue;
1492 case 'f':
1493 sort = LS_SORT_BY_FREQUENCY;
1494 continue;
1495 case 'c':
1496 sort = LS_SORT_BY_CHANNELS;
1497 continue;
1498 case 'i':
1499 sort = LS_SORT_BY_IMAGE_ID;
1500 continue;
1501 case 'y':
1502 sort = LS_SORT_BY_LYRICS_ID;
1503 continue;
1504 case 'b':
1505 sort = LS_SORT_BY_BITRATE;
1506 continue;
1507 case 'd':
1508 sort = LS_SORT_BY_DURATION;
1509 continue;
1510 case 'a':
1511 sort = LS_SORT_BY_AUDIO_FORMAT;
1512 continue;
1513 default:
1514 return -E_AFT_SYNTAX;
1515 }
1516 }
1517 return -E_AFT_SYNTAX;
1518 }
1519 opts.flags = flags;
1520 opts.sorting = sort;
1521 opts.mode = mode;
1522 opts.num_patterns = argc - i;
1523 ret = send_option_arg_callback_request(&query, opts.num_patterns,
1524 argv + i, com_ls_callback, rc4_send_result, rc4c);
1525 return ret;
1526 }
1527
1528 /**
1529 * Call the given function for each file in the audio file table.
1530 *
1531 * \param private_data An arbitrary data pointer, passed to \a func.
1532 * \param func The custom function to be called.
1533 *
1534 * \return The return value of the underlying call to osl_rbtree_loop().
1535 */
1536 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1537 {
1538 return osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1539 func);
1540 }
1541
1542 static struct osl_row *find_hash_sister(HASH_TYPE *hash)
1543 {
1544 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
1545 struct osl_row *row;
1546
1547 osl_get_row(audio_file_table, AFTCOL_HASH, &obj, &row);
1548 return row;
1549 }
1550
1551 /** The format of the data stored by save_audio_file_data(). */
1552 enum com_add_buffer_offsets {
1553 /** afhi (if present) starts here. */
1554 CAB_AFHI_OFFSET_POS = 0,
1555 /** Start of the chunk table (if present). */
1556 CAB_CHUNKS_OFFSET_POS = 2,
1557 /** Audio format id. */
1558 CAB_AUDIO_FORMAT_OFFSET = 4,
1559 /** Flags given to the add command. */
1560 CAB_FLAGS_OFFSET = 5,
1561 /** The hash of the audio file being added. */
1562 CAB_HASH_OFFSET = 9,
1563 /** Start of the path of the audio file. */
1564 CAB_PATH_OFFSET = (CAB_HASH_OFFSET + HASH_SIZE),
1565 };
1566
1567 /*
1568 * Store the given data to a single buffer. Doesn't need the audio file selector
1569 * info struct as the server knows it as well.
1570 *
1571 * It's OK to call this with afhi == NULL. In this case, the audio format
1572 * handler info won't be stored in the buffer.
1573 */
1574 static void save_add_callback_buffer(HASH_TYPE *hash, const char *path,
1575 struct afh_info *afhi, uint32_t flags,
1576 uint8_t audio_format_num, struct osl_object *obj)
1577 {
1578 size_t path_len = strlen(path) + 1;
1579 size_t afhi_size = sizeof_afhi_buf(afhi);
1580 size_t size = CAB_PATH_OFFSET + path_len + afhi_size
1581 + sizeof_chunk_table(afhi);
1582 char *buf = para_malloc(size);
1583 uint16_t pos;
1584
1585 write_u8(buf + CAB_AUDIO_FORMAT_OFFSET, audio_format_num);
1586 write_u32(buf + CAB_FLAGS_OFFSET, flags);
1587
1588 memcpy(buf + CAB_HASH_OFFSET, hash, HASH_SIZE);
1589 strcpy(buf + CAB_PATH_OFFSET, path);
1590
1591 pos = CAB_PATH_OFFSET + path_len;
1592 PARA_DEBUG_LOG("size: %zu, afhi starts at %d\n", size, pos);
1593 PARA_DEBUG_LOG("last afhi byte: %p, pos %zu\n", buf + pos + afhi_size - 1,
1594 pos + afhi_size - 1);
1595 write_u16(buf + CAB_AFHI_OFFSET_POS, pos);
1596 save_afhi(afhi, buf + pos);
1597
1598 pos += afhi_size;
1599 PARA_DEBUG_LOG("size: %zu, chunks start at %d\n", size, pos);
1600 write_u16(buf + CAB_CHUNKS_OFFSET_POS, pos);
1601 if (afhi)
1602 save_chunk_table(afhi, buf + pos);
1603 PARA_DEBUG_LOG("last byte in buf: %p\n", buf + size - 1);
1604 obj->data = buf;
1605 obj->size = size;
1606 }
1607
1608 /*
1609
1610 Overview of the add command.
1611
1612 Input: What was passed to the callback by the command handler.
1613 ~~~~~~
1614 HS: Hash sister. Whether an audio file with identical hash
1615 already exists in the osl database.
1616
1617 PB: Path brother. Whether a file with the given path exists
1618 in the table.
1619
1620 F: Force flag given. Whether add was called with -f.
1621
1622 output: Action performed by the callback.
1623 ~~~~~~~
1624 AFHI: Whether afhi and chunk table are computed and sent.
1625 ACTION: Table modifications to be done by the callback.
1626
1627 +----+----+---+------+---------------------------------------------------+
1628 | HS | PB | F | AFHI | ACTION
1629 +----+----+---+------+---------------------------------------------------+
1630 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1631 | | update path, keep afsi
1632 +----+----+---+------+---------------------------------------------------+
1633 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1634 | | otherwise: remove PB, HS: update path, keep afhi,
1635 | | afsi.
1636 +----+----+---+------+---------------------------------------------------+
1637 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1638 | | HS, keep afsi
1639 +----+----+---+------+---------------------------------------------------+
1640 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1641 +----+----+---+------+---------------------------------------------------+
1642 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1643 | | (force has no effect)
1644 +----+----+---+------+---------------------------------------------------+
1645 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1646 +----+----+---+------+---------------------------------------------------+
1647 | N | N | Y | Y | (new file) create new entry (force has no effect)
1648 +----+----+---+------+---------------------------------------------------+
1649 | N | N | N | Y | (new file) create new entry
1650 +----+----+---+------+---------------------------------------------------+
1651
1652 Notes:
1653
1654 afhi <=> force or no HS
1655 F => AFHI
1656
1657 */
1658
1659 /** Flags passed to the add command. */
1660 enum com_add_flags {
1661 /** Skip paths that exist already. */
1662 ADD_FLAG_LAZY = 1,
1663 /** Force adding. */
1664 ADD_FLAG_FORCE = 2,
1665 /** Print what is being done. */
1666 ADD_FLAG_VERBOSE = 4,
1667 /** Try to add files with unknown suffixes. */
1668 ADD_FLAG_ALL = 8,
1669 };
1670
1671 static void com_add_callback(int fd, const struct osl_object *query)
1672 {
1673 char *buf = query->data, *path;
1674 struct osl_row *pb, *aft_row;
1675 struct osl_row *hs;
1676 struct osl_object objs[NUM_AFT_COLUMNS];
1677 HASH_TYPE *hash;
1678 char asc[2 * HASH_SIZE + 1];
1679 int ret;
1680 char afsi_buf[AFSI_SIZE];
1681 uint32_t flags = read_u32(buf + CAB_FLAGS_OFFSET);
1682 struct afs_info default_afsi = {.last_played = 0};
1683 struct para_buffer msg = {.max_size = SHMMAX,
1684 .max_size_handler = pass_buffer_as_shm, .private_data = &fd};
1685 uint16_t afhi_offset, chunks_offset;
1686
1687 hash = (HASH_TYPE *)buf + CAB_HASH_OFFSET;
1688 hash_to_asc(hash, asc);;
1689 objs[AFTCOL_HASH].data = buf + CAB_HASH_OFFSET;
1690 objs[AFTCOL_HASH].size = HASH_SIZE;
1691
1692 path = buf + CAB_PATH_OFFSET;
1693 objs[AFTCOL_PATH].data = path;
1694 objs[AFTCOL_PATH].size = strlen(path) + 1;
1695
1696 PARA_INFO_LOG("request to add %s\n", path);
1697 hs = find_hash_sister(hash);
1698 ret = aft_get_row_of_path(path, &pb);
1699 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1700 goto out;
1701 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1702 if (flags & ADD_FLAG_VERBOSE)
1703 ret = para_printf(&msg, "ignoring duplicate\n");
1704 else
1705 ret = 1;
1706 goto out;
1707 }
1708 if (hs && hs != pb) {
1709 struct osl_object obj;
1710 if (pb) { /* hs trumps pb, remove pb */
1711 if (flags & ADD_FLAG_VERBOSE) {
1712 ret = para_printf(&msg, "removing path brother\n");
1713 if (ret < 0)
1714 goto out;
1715 }
1716 ret = osl_del_row(audio_file_table, pb);
1717 if (ret < 0)
1718 goto out;
1719 pb = NULL;
1720 }
1721 /* file rename, update hs' path */
1722 if (flags & ADD_FLAG_VERBOSE) {
1723 ret = osl_get_object(audio_file_table, hs,
1724 AFTCOL_PATH, &obj);
1725 if (ret < 0)
1726 goto out;
1727 ret = para_printf(&msg, "renamed from %s\n", (char *)obj.data);
1728 if (ret < 0)
1729 goto out;
1730 }
1731 ret = osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1732 &objs[AFTCOL_PATH]);
1733 if (ret < 0)
1734 goto out;
1735 afs_event(AUDIO_FILE_RENAME, &msg, hs);
1736 if (!(flags & ADD_FLAG_FORCE))
1737 goto out;
1738 }
1739 /* no hs or force mode, child must have sent afhi */
1740 afhi_offset = read_u16(buf + CAB_AFHI_OFFSET_POS);
1741 chunks_offset = read_u16(buf + CAB_CHUNKS_OFFSET_POS);
1742
1743 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1744 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1745 ret = -E_NO_AFHI;
1746 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1747 goto out;
1748 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1749 objs[AFTCOL_CHUNKS].size = query->size - chunks_offset;
1750 if (pb && !hs) { /* update pb's hash */
1751 char old_asc[2 * HASH_SIZE + 1];
1752 HASH_TYPE *old_hash;
1753 ret = get_hash_of_row(pb, &old_hash);
1754 if (ret < 0)
1755 goto out;
1756 hash_to_asc(old_hash, old_asc);
1757 if (flags & ADD_FLAG_VERBOSE) {
1758 ret = para_printf(&msg, "file change: %s -> %s\n",
1759 old_asc, asc);
1760 if (ret < 0)
1761 goto out;
1762 }
1763 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1764 &objs[AFTCOL_HASH]);
1765 if (ret < 0)
1766 goto out;
1767 }
1768 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1769 struct osl_row *row = pb? pb : hs;
1770 /* update afhi and chunk_table */
1771 if (flags & ADD_FLAG_VERBOSE) {
1772 ret = para_printf(&msg, "updating afhi and chunk table\n");
1773 if (ret < 0)
1774 goto out;
1775 }
1776 ret = osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1777 &objs[AFTCOL_AFHI]);
1778 if (ret < 0)
1779 goto out;
1780 ret = osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1781 &objs[AFTCOL_CHUNKS]);
1782 if (ret < 0)
1783 goto out;
1784 afs_event(AFHI_CHANGE, &msg, row);
1785 goto out;
1786 }
1787 /* new entry, use default afsi */
1788 if (flags & ADD_FLAG_VERBOSE) {
1789 ret = para_printf(&msg, "new file\n");
1790 if (ret < 0)
1791 goto out;
1792 }
1793 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1794 default_afsi.audio_format_id = read_u8(buf + CAB_AUDIO_FORMAT_OFFSET);
1795
1796 objs[AFTCOL_AFSI].data = &afsi_buf;
1797 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1798 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1799 ret = osl_add_and_get_row(audio_file_table, objs, &aft_row);
1800 afs_event(AUDIO_FILE_ADD, &msg, aft_row);
1801 out:
1802 if (ret < 0)
1803 para_printf(&msg, "%s\n", para_strerror(-ret));
1804 if (msg.offset)
1805 pass_buffer_as_shm(msg.buf, msg.offset, &fd);
1806 free(msg.buf);
1807 }
1808
1809 /** Used by com_add(). */
1810 struct private_add_data {
1811 /** The socket file descriptor, including rc4 keys. */
1812 struct rc4_context *rc4c;
1813 /** The given add flags. */
1814 uint32_t flags;
1815 };
1816
1817 static void path_brother_callback(int fd, const struct osl_object *query)
1818 {
1819 char *path = query->data;
1820 struct osl_row *path_brother;
1821 int ret = aft_get_row_of_path(path, &path_brother);
1822 if (ret < 0)
1823 return;
1824 pass_buffer_as_shm((char *)&path_brother, sizeof(path_brother), &fd);
1825 }
1826
1827 static void hash_sister_callback(int fd, const struct osl_object *query)
1828 {
1829 HASH_TYPE *hash = query->data;
1830 struct osl_row *hash_sister;
1831
1832 hash_sister = find_hash_sister(hash);
1833 if (!hash_sister)
1834 return;
1835 pass_buffer_as_shm((char *)&hash_sister, sizeof(hash_sister), &fd);
1836 }
1837
1838 static int get_row_pointer_from_result(struct osl_object *result, void *private)
1839 {
1840 struct osl_row **row = private;
1841 *row = result->data;
1842 return 1;
1843 }
1844
1845 static int add_one_audio_file(const char *path, void *private_data)
1846 {
1847 int ret, send_ret = 1, fd;
1848 uint8_t format_num = -1;
1849 struct private_add_data *pad = private_data;
1850 struct afh_info afhi, *afhi_ptr = NULL;
1851 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1852 struct osl_object map, obj = {.data = NULL}, query;
1853 HASH_TYPE hash[HASH_SIZE];
1854
1855 ret = guess_audio_format(path);
1856 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL))
1857 goto out_free;
1858 query.data = (char *)path;
1859 query.size = strlen(path) + 1;
1860 ret = send_callback_request(path_brother_callback, &query,
1861 get_row_pointer_from_result, &pb);
1862 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1863 goto out_free;
1864 ret = 1;
1865 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1866 if (pad->flags & ADD_FLAG_VERBOSE)
1867 send_ret = rc4_send_va_buffer(pad->rc4c,
1868 "lazy-ignore: %s\n", path);
1869 goto out_free;
1870 }
1871 /* We still want to add this file. Compute its hash. */
1872 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &fd);
1873 if (ret < 0)
1874 goto out_free;
1875 hash_function(map.data, map.size, hash);
1876
1877 /* Check whether the database contains a file with the same hash. */
1878 query.data = hash;
1879 query.size = HASH_SIZE;
1880 ret = send_callback_request(hash_sister_callback, &query,
1881 get_row_pointer_from_result, &hs);
1882 if (ret < 0)
1883 goto out_unmap;
1884 /* Return success if we already know this file. */
1885 ret = 1;
1886 if (pb && hs && hs == pb && !(pad->flags & ADD_FLAG_FORCE)) {
1887 if (pad->flags & ADD_FLAG_VERBOSE)
1888 send_ret = rc4_send_va_buffer(pad->rc4c,
1889 "%s exists, not forcing update\n", path);
1890 goto out_unmap;
1891 }
1892 /*
1893 * We won't recalculate the audio format info and the chunk table if
1894 * there is a hash sister and FORCE was not given.
1895 */
1896 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1897 ret = compute_afhi(path, map.data, map.size, fd, &afhi);
1898 if (ret < 0)
1899 goto out_unmap;
1900 format_num = ret;
1901 afhi_ptr = &afhi;
1902 }
1903 munmap(map.data, map.size);
1904 close(fd);
1905 if (pad->flags & ADD_FLAG_VERBOSE) {
1906 send_ret = rc4_send_va_buffer(pad->rc4c, "adding %s\n", path);
1907 if (send_ret < 0)
1908 goto out_free;
1909 }
1910 save_add_callback_buffer(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1911 /* Ask afs to consider this entry for adding. */
1912 ret = send_callback_request(com_add_callback, &obj, rc4_send_result, pad->rc4c);
1913 goto out_free;
1914
1915 out_unmap:
1916 close(fd);
1917 munmap(map.data, map.size);
1918 out_free:
1919 if (ret < 0 && send_ret >= 0)
1920 send_ret = rc4_send_va_buffer(pad->rc4c,
1921 "failed to add %s (%s)\n", path, para_strerror(-ret));
1922 free(obj.data);
1923 if (afhi_ptr) {
1924 free(afhi_ptr->chunk_table);
1925 free(afhi_ptr->info_string);
1926 }
1927 /* Stop adding files only on send errors. */
1928 return send_ret;
1929 }
1930
1931 int com_add(struct rc4_context *rc4c, int argc, char * const * const argv)
1932 {
1933 int i, ret;
1934 struct private_add_data pad = {.rc4c = rc4c, .flags = 0};
1935 struct stat statbuf;
1936
1937 for (i = 1; i < argc; i++) {
1938 const char *arg = argv[i];
1939 if (arg[0] != '-')
1940 break;
1941 if (!strcmp(arg, "--")) {
1942 i++;
1943 break;
1944 }
1945 if (!strcmp(arg, "-a")) {
1946 pad.flags |= ADD_FLAG_ALL;
1947 continue;
1948 }
1949 if (!strcmp(arg, "-l")) {
1950 pad.flags |= ADD_FLAG_LAZY;
1951 continue;
1952 }
1953 if (!strcmp(arg, "-f")) {
1954 pad.flags |= ADD_FLAG_FORCE;
1955 continue;
1956 }
1957 if (!strcmp(arg, "-v")) {
1958 pad.flags |= ADD_FLAG_VERBOSE;
1959 continue;
1960 }
1961 }
1962 if (argc <= i)
1963 return -E_AFT_SYNTAX;
1964 for (; i < argc; i++) {
1965 char *path;
1966 ret = verify_path(argv[i], &path);
1967 if (ret < 0) {
1968 ret = rc4_send_va_buffer(rc4c, "%s: %s\n", argv[i],
1969 para_strerror(-ret));
1970 if (ret < 0)
1971 return ret;
1972 continue;
1973 }
1974 ret = stat(path, &statbuf);
1975 if (ret < 0) {
1976 ret = rc4_send_va_buffer(rc4c, "failed to stat %s (%s)\n", path,
1977 strerror(errno));
1978 free(path);
1979 if (ret < 0)
1980 return ret;
1981 continue;
1982 }
1983 if (S_ISDIR(statbuf.st_mode))
1984 ret = for_each_file_in_dir(path, add_one_audio_file,
1985 &pad);
1986 else
1987 ret = add_one_audio_file(path, &pad);
1988 if (ret < 0) {
1989 rc4_send_va_buffer(rc4c, "%s: %s\n", path, para_strerror(-ret));
1990 free(path);
1991 return ret;
1992 }
1993 free(path);
1994 }
1995 return 1;
1996
1997 }
1998
1999 /**
2000 * Flags used by the touch command.
2001 *
2002 * \sa com_touch().
2003 */
2004 enum touch_flags {
2005 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
2006 TOUCH_FLAG_FNM_PATHNAME = 1,
2007 /** Activates verbose mode. */
2008 TOUCH_FLAG_VERBOSE = 2
2009 };
2010
2011 /** Options used by com_touch(). */
2012 struct com_touch_options {
2013 /** New num_played value. */
2014 int32_t num_played;
2015 /** New last played count. */
2016 int64_t last_played;
2017 /** New lyrics id. */
2018 int32_t lyrics_id;
2019 /** New image id. */
2020 int32_t image_id;
2021 /** New amplification value. */
2022 int32_t amp;
2023 /** Command line flags (see \ref touch_flags). */
2024 unsigned flags;
2025 };
2026
2027 /** Data passed to the action handler of com_touch(). */
2028 struct touch_action_data {
2029 /** Command line options (see \ref com_touch_options). */
2030 struct com_touch_options *cto;
2031 /** Message buffer. */
2032 struct para_buffer pb;
2033 /** How many audio files matched the given pattern. */
2034 unsigned num_matches;
2035 };
2036
2037 static int touch_audio_file(__a_unused struct osl_table *table,
2038 struct osl_row *row, const char *name, void *data)
2039 {
2040 struct touch_action_data *tad = data;
2041 struct osl_object obj;
2042 struct afs_info old_afsi, new_afsi;
2043 int ret, no_options = tad->cto->num_played < 0 && tad->cto->last_played < 0 &&
2044 tad->cto->lyrics_id < 0 && tad->cto->image_id < 0 && tad->cto->amp < 0;
2045 struct afsi_change_event_data aced;
2046
2047 ret = get_afsi_object_of_row(row, &obj);
2048 if (ret < 0)
2049 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2050 ret = load_afsi(&old_afsi, &obj);
2051 if (ret < 0)
2052 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2053 new_afsi = old_afsi;
2054 if (no_options) {
2055 new_afsi.num_played++;
2056 new_afsi.last_played = time(NULL);
2057 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2058 ret = para_printf(&tad->pb, "%s: num_played = %u, "
2059 "last_played = now()\n", name,
2060 new_afsi.num_played);
2061 if (ret < 0)
2062 return ret;
2063 }
2064 } else {
2065 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2066 ret = para_printf(&tad->pb, "touching %s\n", name);
2067 if (ret < 0)
2068 return ret;
2069 }
2070 if (tad->cto->lyrics_id >= 0)
2071 new_afsi.lyrics_id = tad->cto->lyrics_id;
2072 if (tad->cto->image_id >= 0)
2073 new_afsi.image_id = tad->cto->image_id;
2074 if (tad->cto->num_played >= 0)
2075 new_afsi.num_played = tad->cto->num_played;
2076 if (tad->cto->last_played >= 0)
2077 new_afsi.last_played = tad->cto->last_played;
2078 if (tad->cto->amp >= 0)
2079 new_afsi.amp = tad->cto->amp;
2080 }
2081 tad->num_matches++;
2082 save_afsi(&new_afsi, &obj); /* in-place update */
2083 aced.aft_row = row;
2084 aced.old_afsi = &old_afsi;
2085 afs_event(AFSI_CHANGE, &tad->pb, &aced);
2086 return 1;
2087 }
2088
2089 static void com_touch_callback(int fd, const struct osl_object *query)
2090 {
2091 struct touch_action_data tad = {.cto = query->data,
2092 .pb = {
2093 .max_size = SHMMAX,
2094 .private_data = &fd,
2095 .max_size_handler = pass_buffer_as_shm
2096 }
2097 };
2098 int ret, ret2 = 0;
2099 struct pattern_match_data pmd = {
2100 .table = audio_file_table,
2101 .loop_col_num = AFTCOL_HASH,
2102 .match_col_num = AFTCOL_PATH,
2103 .patterns = {.data = (char *)query->data + sizeof(*tad.cto),
2104 .size = query->size - sizeof(*tad.cto)},
2105 .data = &tad,
2106 .action = touch_audio_file
2107 };
2108 if (tad.cto->flags & TOUCH_FLAG_FNM_PATHNAME)
2109 pmd.fnmatch_flags |= FNM_PATHNAME;
2110 ret = for_each_matching_row(&pmd);
2111 if (ret < 0)
2112 ret2 = para_printf(&tad.pb, "%s\n", para_strerror(-ret));
2113 else
2114 if (!tad.num_matches)
2115 ret2 = para_printf(&tad.pb, "no matches\n");
2116 if (ret2 >= 0 && tad.pb.offset)
2117 pass_buffer_as_shm(tad.pb.buf, tad.pb.offset, &fd);
2118 free(tad.pb.buf);
2119 }
2120
2121 int com_touch(struct rc4_context *rc4c, int argc, char * const * const argv)
2122 {
2123 struct com_touch_options cto = {
2124 .num_played = -1,
2125 .last_played = -1,
2126 .lyrics_id = -1,
2127 .image_id = -1,
2128 .amp = -1,
2129 };
2130 struct osl_object query = {.data = &cto, .size = sizeof(cto)};
2131 int i, ret;
2132
2133
2134 for (i = 1; i < argc; i++) {
2135 const char *arg = argv[i];
2136 if (arg[0] != '-')
2137 break;
2138 if (!strcmp(arg, "--")) {
2139 i++;
2140 break;
2141 }
2142 if (!strncmp(arg, "-n", 2)) {
2143 ret = para_atoi32(arg + 2, &cto.num_played);
2144 if (ret < 0)
2145 return ret;
2146 continue;
2147 }
2148 if (!strncmp(arg, "-l", 2)) {
2149 ret = para_atoi64(arg + 2, &cto.last_played);
2150 if (ret < 0)
2151 return ret;
2152 continue;
2153 }
2154 if (!strncmp(arg, "-y", 2)) {
2155 ret = para_atoi32(arg + 2, &cto.lyrics_id);
2156 if (ret < 0)
2157 return ret;
2158 continue;
2159 }
2160 if (!strncmp(arg, "-i", 2)) {
2161 ret = para_atoi32(arg + 2, &cto.image_id);
2162 if (ret < 0)
2163 return ret;
2164 continue;
2165 }
2166 if (!strncmp(arg, "-a", 2)) {
2167 int32_t val;
2168 ret = para_atoi32(arg + 2, &val);
2169 if (ret < 0)
2170 return ret;
2171 if (val < 0 || val > 255)
2172 return -ERRNO_TO_PARA_ERROR(EINVAL);
2173 cto.amp = val;
2174 continue;
2175 }
2176 if (!strcmp(arg, "-p")) {
2177 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
2178 continue;
2179 }
2180 if (!strcmp(arg, "-v")) {
2181 cto.flags |= TOUCH_FLAG_VERBOSE;
2182 continue;
2183 }
2184 break; /* non-option starting with dash */
2185 }
2186 if (i >= argc)
2187 return -E_AFT_SYNTAX;
2188 ret = send_option_arg_callback_request(&query, argc - i,
2189 argv + i, com_touch_callback, rc4_send_result, rc4c);
2190 if (ret < 0)
2191 rc4_send_va_buffer(rc4c, "%s\n", para_strerror(-ret));
2192 return ret;
2193 }
2194
2195 /** Flags for com_rm(). */
2196 enum rm_flags {
2197 /** -v */
2198 RM_FLAG_VERBOSE = 1,
2199 /** -f */
2200 RM_FLAG_FORCE = 2,
2201 /** -p */
2202 RM_FLAG_FNM_PATHNAME = 4
2203 };
2204
2205 /** Data passed to the action handler of com_rm(). */
2206 struct com_rm_action_data {
2207 /** Command line flags ((see \ref rm_flags). */
2208 uint32_t flags;
2209 /** Message buffer. */
2210 struct para_buffer pb;
2211 /** Number of audio files removed. */
2212 unsigned num_removed;
2213 };
2214
2215 static int remove_audio_file(__a_unused struct osl_table *table,
2216 struct osl_row *row, const char *name, void *data)
2217 {
2218 struct com_rm_action_data *crd = data;
2219 int ret;
2220
2221 if (crd->flags & RM_FLAG_VERBOSE) {
2222 ret = para_printf(&crd->pb, "removing %s\n", name);
2223 if (ret < 0)
2224 return ret;
2225 }
2226 afs_event(AUDIO_FILE_REMOVE, &crd->pb, row);
2227 ret = osl_del_row(audio_file_table, row);
2228 if (ret < 0)
2229 para_printf(&crd->pb, "%s: %s\n", name, para_strerror(-ret));
2230 else
2231 crd->num_removed++;
2232 return ret;
2233 }
2234
2235 static void com_rm_callback(int fd, const struct osl_object *query)
2236 {
2237 struct com_rm_action_data crd = {.flags = *(uint32_t *)query->data,
2238 .pb = {
2239 .max_size = SHMMAX,
2240 .private_data = &fd,
2241 .max_size_handler = pass_buffer_as_shm
2242 }
2243 };
2244 int ret;
2245 struct pattern_match_data pmd = {
2246 .table = audio_file_table,
2247 .loop_col_num = AFTCOL_HASH,
2248 .match_col_num = AFTCOL_PATH,
2249 .patterns = {.data = (char *)query->data + sizeof(uint32_t),
2250 .size = query->size - sizeof(uint32_t)},
2251 .data = &crd,
2252 .action = remove_audio_file
2253 };
2254 if (crd.flags & RM_FLAG_FNM_PATHNAME)
2255 pmd.fnmatch_flags |= FNM_PATHNAME;
2256 ret = for_each_matching_row(&pmd);
2257 if (ret < 0) {
2258 para_printf(&crd.pb, "%s\n", para_strerror(-ret));
2259 return;
2260 }
2261 if (!crd.num_removed && !(crd.flags & RM_FLAG_FORCE))
2262 ret = para_printf(&crd.pb, "no matches -- nothing removed\n");
2263 else {
2264 if (crd.flags & RM_FLAG_VERBOSE)
2265 ret = para_printf(&crd.pb, "removed %u files\n", crd.num_removed);
2266 }
2267 if (ret >= 0 && crd.pb.offset)
2268 pass_buffer_as_shm(crd.pb.buf, crd.pb.offset, &fd);
2269 free(crd.pb.buf);
2270 }
2271
2272 /* TODO options: -r (recursive) */
2273 int com_rm(struct rc4_context *rc4c, int argc, char * const * const argv)
2274 {
2275 uint32_t flags = 0;
2276 struct osl_object query = {.data = &flags, .size = sizeof(flags)};
2277 int i, ret;
2278
2279 for (i = 1; i < argc; i++) {
2280 const char *arg = argv[i];
2281 if (arg[0] != '-')
2282 break;
2283 if (!strcmp(arg, "--")) {
2284 i++;
2285 break;
2286 }
2287 if (!strcmp(arg, "-f")) {
2288 flags |= RM_FLAG_FORCE;
2289 continue;
2290 }
2291 if (!strcmp(arg, "-p")) {
2292 flags |= RM_FLAG_FNM_PATHNAME;
2293 continue;
2294 }
2295 if (!strcmp(arg, "-v")) {
2296 flags |= RM_FLAG_VERBOSE;
2297 continue;
2298 }
2299 break;
2300 }
2301 if (i >= argc)
2302 return -E_AFT_SYNTAX;
2303 ret = send_option_arg_callback_request(&query, argc - i, argv + i,
2304 com_rm_callback, rc4_send_result, rc4c);
2305 if (ret < 0)
2306 rc4_send_va_buffer(rc4c, "%s\n", para_strerror(-ret));
2307 return ret;
2308 }
2309
2310 /**
2311 * Flags used by the cpsi command.
2312 *
2313 * \sa com_cpsi().
2314 */
2315 enum cpsi_flags {
2316 /** Whether the lyrics id should be copied. */
2317 CPSI_FLAG_COPY_LYRICS_ID = 1,
2318 /** Whether the image id should be copied. */
2319 CPSI_FLAG_COPY_IMAGE_ID = 2,
2320 /** Whether the lastplayed time should be copied. */
2321 CPSI_FLAG_COPY_LASTPLAYED = 4,
2322 /** Whether the numplayed count should be copied. */
2323 CPSI_FLAG_COPY_NUMPLAYED = 8,
2324 /** Whether the attributes should be copied. */
2325 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2326 /** Activates verbose mode. */
2327 CPSI_FLAG_VERBOSE = 32,
2328 };
2329
2330 /** Data passed to the action handler of com_cpsi(). */
2331 struct cpsi_action_data {
2332 /** command line flags (see \ref cpsi_flags). */
2333 unsigned flags;
2334 /** Number of audio files changed. */
2335 unsigned num_copied;
2336 /** Message buffer. */
2337 struct para_buffer pb;
2338 /** Values are copied from here. */
2339 struct afs_info source_afsi;
2340 };
2341
2342 static int copy_selector_info(__a_unused struct osl_table *table,
2343 struct osl_row *row, const char *name, void *data)
2344 {
2345 struct cpsi_action_data *cad = data;
2346 struct osl_object target_afsi_obj;
2347 int ret;
2348 struct afs_info old_afsi, target_afsi;
2349 struct afsi_change_event_data aced;
2350
2351 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2352 if (ret < 0)
2353 return ret;
2354 load_afsi(&target_afsi, &target_afsi_obj);
2355 old_afsi = target_afsi;
2356 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2357 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2358 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2359 target_afsi.image_id = cad->source_afsi.image_id;
2360 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2361 target_afsi.last_played = cad->source_afsi.last_played;
2362 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2363 target_afsi.num_played = cad->source_afsi.num_played;
2364 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2365 target_afsi.attributes = cad->source_afsi.attributes;
2366 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2367 cad->num_copied++;
2368 if (cad->flags & CPSI_FLAG_VERBOSE) {
2369 ret = para_printf(&cad->pb, "copied afsi to %s\n", name);
2370 if (ret < 0)
2371 return ret;
2372 }
2373 aced.aft_row = row;
2374 aced.old_afsi = &old_afsi;
2375 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2376 return 1;
2377 }
2378
2379 static void com_cpsi_callback(int fd, const struct osl_object *query)
2380 {
2381 struct cpsi_action_data cad = {
2382 .flags = *(unsigned *)query->data,
2383 .pb = {
2384 .max_size = SHMMAX,
2385 .private_data = &fd,
2386 .max_size_handler = pass_buffer_as_shm
2387 }
2388 };
2389 int ret;
2390 char *source_path = (char *)query->data + sizeof(cad.flags);
2391 struct pattern_match_data pmd = {
2392 .table = audio_file_table,
2393 .loop_col_num = AFTCOL_HASH,
2394 .match_col_num = AFTCOL_PATH,
2395 .patterns = {.data = source_path + strlen(source_path) + 1,
2396 .size = query->size - sizeof(cad.flags)
2397 - strlen(source_path) - 1},
2398 .data = &cad,
2399 .action = copy_selector_info
2400 };
2401
2402 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2403 if (ret < 0)
2404 goto out;
2405 ret = for_each_matching_row(&pmd);
2406 out:
2407 if (ret < 0)
2408 para_printf(&cad.pb, "%s\n", para_strerror(-ret));
2409 else if (cad.flags & CPSI_FLAG_VERBOSE) {
2410 if (cad.num_copied)
2411 para_printf(&cad.pb, "copied requested afsi from %s "
2412 "to %u files\n", source_path, cad.num_copied);
2413 else
2414 para_printf(&cad.pb, "nothing copied\n");
2415 }
2416 if (cad.pb.offset)
2417 pass_buffer_as_shm(cad.pb.buf, cad.pb.offset, &fd);
2418 free(cad.pb.buf);
2419 }
2420
2421 int com_cpsi(struct rc4_context *rc4c, int argc, char * const * const argv)
2422 {
2423 unsigned flags = 0;
2424 int i, ret;
2425 struct osl_object options = {.data = &flags, .size = sizeof(flags)};
2426
2427 for (i = 1; i < argc; i++) {
2428 const char *arg = argv[i];
2429 if (arg[0] != '-')
2430 break;
2431 if (!strcmp(arg, "--")) {
2432 i++;
2433 break;
2434 }
2435 if (!strcmp(arg, "-y")) {
2436 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2437 continue;
2438 }
2439 if (!strcmp(arg, "-i")) {
2440 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2441 continue;
2442 }
2443 if (!strcmp(arg, "-l")) {
2444 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2445 continue;
2446 }
2447 if (!strcmp(arg, "-n")) {
2448 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2449 continue;
2450 }
2451 if (!strcmp(arg, "-a")) {
2452 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2453 continue;
2454 }
2455 if (!strcmp(arg, "-v")) {
2456 flags |= CPSI_FLAG_VERBOSE;
2457 continue;
2458 }
2459 break;
2460 }
2461 if (i + 1 >= argc) /* need at least souce file and pattern */
2462 return -E_AFT_SYNTAX;
2463 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2464 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2465 ret = send_option_arg_callback_request(&options, argc - i, argv + i,
2466 com_cpsi_callback, rc4_send_result, rc4c);
2467 if (ret < 0)
2468 rc4_send_va_buffer(rc4c, "%s\n", para_strerror(-ret));
2469 return ret;
2470 }
2471
2472 /* TODO: optionally fix problems by removing offending rows */
2473 static int check_audio_file(struct osl_row *row, void *data)
2474 {
2475 char *path;
2476 struct para_buffer *pb = data;
2477 struct stat statbuf;
2478 int ret = get_audio_file_path_of_row(row, &path);
2479 struct afs_info afsi;
2480 char *blob_name;
2481
2482 if (ret < 0)
2483 return para_printf(pb, "%s\n", para_strerror(-ret));
2484 if (stat(path, &statbuf) < 0) {
2485 ret = para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2486 if (ret < 0)
2487 return ret;
2488 } else {
2489 if (!S_ISREG(statbuf.st_mode)) {
2490 ret = para_printf(pb, "%s: not a regular file\n", path);
2491 if (ret < 0)
2492 return ret;
2493 }
2494 }
2495 ret = get_afsi_of_row(row, &afsi);
2496 if (ret < 0)
2497 return para_printf(pb, "%s: %s\n", path, para_strerror(-ret));
2498 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2499 if (ret < 0) {
2500 ret = para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2501 para_strerror(-ret));
2502 if (ret < 0)
2503 return ret;
2504 }
2505 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2506 if (ret < 0)
2507 ret = para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2508 para_strerror(-ret));
2509 return ret;
2510 }
2511
2512 /**
2513 * Check the audio file table for inconsistencies.
2514 *
2515 * \param fd The afs socket.
2516 * \param query Unused.
2517 *
2518 * This function always succeeds.
2519 *
2520 * \sa com_check().
2521 */
2522 void aft_check_callback(int fd, __a_unused const struct osl_object *query)
2523 {
2524 struct para_buffer pb = {
2525 .max_size = SHMMAX,
2526 .private_data = &fd,
2527 .max_size_handler = pass_buffer_as_shm
2528 };
2529 int ret = para_printf(&pb, "checking audio file table...\n");
2530
2531 if (ret < 0)
2532 return;
2533 audio_file_loop(&pb, check_audio_file);
2534 if (pb.offset)
2535 pass_buffer_as_shm(pb.buf, pb.offset, &fd);
2536 free(pb.buf);
2537 }
2538
2539 /**
2540 * Close the audio file table.
2541 *
2542 * \param flags Usual flags that are passed to osl_close_table().
2543 *
2544 * \sa osl_close_table().
2545 */
2546 static void aft_close(void)
2547 {
2548 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2549 audio_file_table = NULL;
2550 }
2551
2552 /**
2553 * Open the audio file table.
2554 *
2555 * \param dir The database directory.
2556 *
2557 * \return Standard.
2558 *
2559 * \sa osl_open_table().
2560 */
2561 static int aft_open(const char *dir)
2562 {
2563 int ret;
2564
2565 audio_file_table_desc.dir = dir;
2566 ret = osl_open_table(&audio_file_table_desc, &audio_file_table);
2567 if (ret >= 0) {
2568 unsigned num;
2569 osl_get_num_rows(audio_file_table, &num);
2570 PARA_INFO_LOG("audio file table contains %d files\n", num);
2571 return ret;
2572 }
2573 PARA_INFO_LOG("failed to open audio file table\n");
2574 audio_file_table = NULL;
2575 if (ret >= 0 || is_errno(-ret, ENOENT))
2576 return 1;
2577 return ret;
2578 }
2579
2580 static int aft_create(const char *dir)
2581 {
2582 audio_file_table_desc.dir = dir;
2583 return osl_create_table(&audio_file_table_desc);
2584 }
2585
2586 static int clear_attribute(struct osl_row *row, void *data)
2587 {
2588 struct rmatt_event_data *red = data;
2589 struct afs_info afsi;
2590 struct osl_object obj;
2591 int ret = get_afsi_object_of_row(row, &obj);
2592 uint64_t mask = ~(1ULL << red->bitnum);
2593
2594 if (ret < 0)
2595 return ret;
2596 ret = load_afsi(&afsi, &obj);
2597 if (ret < 0)
2598 return ret;
2599 afsi.attributes &= mask;
2600 save_afsi(&afsi, &obj);
2601 return 1;
2602 }
2603
2604 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2605 void *data)
2606 {
2607 int ret;
2608
2609 switch(event) {
2610 case ATTRIBUTE_REMOVE: {
2611 const struct rmatt_event_data *red = data;
2612 ret = para_printf(pb, "clearing attribute %s (bit %u) from all "
2613 "entries in the audio file table\n", red->name,
2614 red->bitnum);
2615 if (ret < 0)
2616 return ret;
2617 return audio_file_loop(data, clear_attribute);
2618 }
2619 default:
2620 return 1;
2621 }
2622 }
2623
2624 void aft_init(struct afs_table *t)
2625 {
2626 t->name = audio_file_table_desc.name;
2627 t->open = aft_open;
2628 t->close = aft_close;
2629 t->create = aft_create;
2630 t->event_handler = aft_event_handler;
2631 }