2 * Copyright (C) 2007 Andre Noll <maan@systemlinux.org>
4 * Licensed under the GPL v2. For licencing details see COPYING.
7 /** \file afs.c Paraslash's audio file selector. */
10 #include "server.cmdline.h"
15 #include <dirent.h> /* readdir() */
27 /** The osl tables used by afs. \sa blob.c. */
29 /** Contains audio file information. See aft.c. */
31 /** The table for the paraslash attributes. See attribute.c. */
34 * Paraslash's scoring system is based on Gaussian normal
35 * distributions, and the relevant data is stored in the rbtrees of an
36 * osl table containing only volatile columns. See score.c for
41 * A standard blob table containing the mood definitions. For details
45 /** A blob table containing lyrics on a per-song basis. */
47 /** Another blob table for images (for example album cover art). */
49 /** Yet another blob table for storing standard playlists. */
51 /** How many tables are in use? */
55 static struct table_info afs_tables
[NUM_AFS_TABLES
];
58 /** The file descriptor for the local socket. */
61 * Value sent by the command handlers to identify themselves as
62 * children of the running para_server.
65 /** The associated task structure. */
70 * A random number used to "authenticate" the connection.
72 * para_server picks this number by random before forking the afs process. The
73 * command handlers write this number together with the id of the shared memory
74 * area containing the query. This way, a malicious local user has to know this
75 * number to be able to cause the afs process to crash by sending fake queries.
77 extern uint32_t afs_socket_cookie
;
80 * Struct to let command handlers execute a callback in afs context.
82 * Commands that need to change the state of afs can't change the relevant data
83 * structures directly because commands are executed in a child process, i.e.
84 * they get their own virtual address space.
86 * This structure is used by \p send_callback_request() (executed from handler
87 * context) in order to let the afs process call the specified function. An
88 * instance of that structure is written to a shared memory area together with
89 * the arguments to the callback function. The identifier of the shared memory
90 * area is written to the command socket.
92 * The afs process accepts connections on the command socket and reads the
93 * shared memory id, attaches the corresponing area, calls the given handler to
94 * perform the desired action and to optionally compute a result.
96 * The result and a \p callback_result structure is then written to another
97 * shared memory area. The identifier for that area is written to the handler's
98 * command socket, so that the handler process can read the id, attach the
99 * shared memory area and use the result.
101 * \sa struct callback_result.
103 struct callback_query
{
104 /** The function to be called. */
105 callback_function
*handler
;
106 /** The number of bytes of the query */
111 * Structure embedded in the result of a callback.
113 * If the callback produced a result, an instance of that structure is embeeded
114 * into the shared memory area holding the result, mainly to let the command
115 * handler know the size of the result.
117 * \sa struct callback_query.
119 struct callback_result
{
120 /** The number of bytes of the result. */
125 * Ask the parent process to call a given function.
127 * \param f The function to be called.
128 * \param query Pointer to arbitrary data for the callback.
129 * \param result Callback result will be stored here.
131 * This function creates a shared memory area, copies the buffer pointed to by
132 * \a buf to that area and notifies the afs process that \a f should be
135 * \return Negative, on errors, the return value of the callback function
138 * \sa send_option_arg_callback_request(), send_standard_callback_request().
140 int send_callback_request(callback_function
*f
, struct osl_object
*query
,
141 struct osl_object
*result
)
143 struct callback_query
*cq
;
144 struct callback_result
*cr
;
145 int ret
, fd
= -1, query_shmid
, result_shmid
;
146 void *query_shm
, *result_shm
;
147 char buf
[sizeof(afs_socket_cookie
) + sizeof(int)];
148 struct sockaddr_un unix_addr
;
149 size_t query_shm_size
= sizeof(*cq
);
152 query_shm_size
+= query
->size
;
153 ret
= shm_new(query_shm_size
);
157 ret
= shm_attach(query_shmid
, ATTACH_RW
, &query_shm
);
162 cq
->query_size
= query_shm_size
- sizeof(*cq
);
165 memcpy(query_shm
+ sizeof(*cq
), query
->data
, query
->size
);
166 ret
= shm_detach(query_shm
);
170 *(uint32_t *) buf
= afs_socket_cookie
;
171 *(int *) (buf
+ sizeof(afs_socket_cookie
)) = query_shmid
;
173 ret
= get_stream_socket(PF_UNIX
);
177 ret
= init_unix_addr(&unix_addr
, conf
.afs_socket_arg
);
180 ret
= PARA_CONNECT(fd
, &unix_addr
);
183 ret
= send_bin_buffer(fd
, buf
, sizeof(buf
));
186 ret
= recv_bin_buffer(fd
, buf
, sizeof(buf
));
189 if (ret
!= sizeof(int)) {
197 ret
= shm_attach(result_shmid
, ATTACH_RO
, &result_shm
);
201 result
->size
= cr
->result_size
;
202 result
->data
= para_malloc(result
->size
);
203 memcpy(result
->data
, result_shm
+ sizeof(*cr
), result
->size
);
204 ret
= shm_detach(result_shm
);
206 PARA_ERROR_LOG("can not detach result\n");
208 PARA_ERROR_LOG("attach result failed: %d\n", ret
);
209 if (shm_destroy(result_shmid
) < 0)
210 PARA_ERROR_LOG("destroy result failed\n");
213 if (shm_destroy(query_shmid
) < 0)
214 PARA_ERROR_LOG("%s\n", "shm destroy error");
217 // PARA_DEBUG_LOG("callback_ret: %d\n", ret);
222 * Send a callback request passing an options structure and an argument vector.
224 * \param options pointer to an arbitrary data structure.
225 * \param argc Argument count.
226 * \param argv Standard argument vector.
227 * \param f The callback function.
228 * \param result The result of the query is stored here.
230 * Some commands have a couple of options that are parsed in child context for
231 * syntactic correctness and are stored in a special options structure for that
232 * command. This function allows to pass such a structure together with a list
233 * of further arguments (often a list of audio files) to the parent process.
235 * \sa send_standard_callback_request(), send_callback_request().
237 int send_option_arg_callback_request(struct osl_object
*options
,
238 int argc
, char * const * const argv
, callback_function
*f
,
239 struct osl_object
*result
)
243 struct osl_object query
= {.size
= options
? options
->size
: 0};
245 for (i
= 0; i
< argc
; i
++)
246 query
.size
+= strlen(argv
[i
]) + 1;
247 query
.data
= para_malloc(query
.size
);
250 memcpy(query
.data
, options
->data
, options
->size
);
253 for (i
= 0; i
< argc
; i
++) {
254 strcpy(p
, argv
[i
]); /* OK */
255 p
+= strlen(argv
[i
]) + 1;
257 ret
= send_callback_request(f
, &query
, result
);
263 * Send a callback request with an argument vector only.
265 * \param argc The same meaning as in send_option_arg_callback_request().
266 * \param argv The same meaning as in send_option_arg_callback_request().
267 * \param f The same meaning as in send_option_arg_callback_request().
268 * \param result The same meaning as in send_option_arg_callback_request().
270 * This is similar to send_option_arg_callback_request(), but no options buffer
271 * is passed to the parent process.
273 * \return The return value of the underlying call to
274 * send_option_arg_callback_request().
276 int send_standard_callback_request(int argc
, char * const * const argv
,
277 callback_function
*f
, struct osl_object
*result
)
279 return send_option_arg_callback_request(NULL
, argc
, argv
, f
, result
);
282 static int action_if_pattern_matches(struct osl_row
*row
, void *data
)
284 struct pattern_match_data
*pmd
= data
;
285 struct osl_object name_obj
;
286 const char *p
, *name
;
287 int ret
= osl_get_object(pmd
->table
, row
, pmd
->match_col_num
, &name_obj
);
288 const char *pattern_txt
= (const char *)pmd
->patterns
.data
;
292 name
= (char *)name_obj
.data
;
293 if ((!name
|| !*name
) && (pmd
->pm_flags
& PM_SKIP_EMPTY_NAME
))
295 if (!pmd
->patterns
.size
&& (pmd
->pm_flags
& PM_NO_PATTERN_MATCHES_EVERYTHING
))
296 return pmd
->action(pmd
->table
, row
, name
, pmd
->data
);
297 for (p
= pattern_txt
; p
< pattern_txt
+ pmd
->patterns
.size
;
298 p
+= strlen(p
) + 1) {
299 ret
= fnmatch(p
, name
, pmd
->fnmatch_flags
);
300 if (ret
== FNM_NOMATCH
)
304 return pmd
->action(pmd
->table
, row
, name
, pmd
->data
);
309 int for_each_matching_row(struct pattern_match_data
*pmd
)
311 if (pmd
->pm_flags
& PM_REVERSE_LOOP
)
312 return osl_rbtree_loop_reverse(pmd
->table
, pmd
->loop_col_num
, pmd
,
313 action_if_pattern_matches
);
314 return osl_rbtree_loop(pmd
->table
, pmd
->loop_col_num
, pmd
,
315 action_if_pattern_matches
);
319 * Compare two osl objects of string type.
321 * \param obj1 Pointer to the first object.
322 * \param obj2 Pointer to the second object.
324 * In any case, only \p MIN(obj1->size, obj2->size) characters of each string
325 * are taken into account.
327 * \return It returns an integer less than, equal to, or greater than zero if
328 * \a obj1 is found, respectively, to be less than, to match, or be greater than
331 * \sa strcmp(3), strncmp(3), osl_compare_func.
333 int string_compare(const struct osl_object
*obj1
, const struct osl_object
*obj2
)
335 const char *str1
= (const char *)obj1
->data
;
336 const char *str2
= (const char *)obj2
->data
;
337 return strncmp(str1
, str2
, PARA_MIN(obj1
->size
, obj2
->size
));
341 * A wrapper for strtol(3).
343 * \param str The string to be converted to a long integer.
344 * \param result The converted value is stored here.
346 * \return Positive on success, -E_ATOL on errors.
348 * \sa strtol(3), atoi(3).
350 int para_atol(const char *str
, long *result
)
356 errno
= 0; /* To distinguish success/failure after call */
357 val
= strtol(str
, &endptr
, base
);
359 if (errno
== ERANGE
&& (val
== LONG_MAX
|| val
== LONG_MIN
))
360 goto out
; /* overflow */
361 if (errno
!= 0 && val
== 0)
362 goto out
; /* other error */
364 goto out
; /* No digits were found */
366 goto out
; /* Further characters after number */
375 * write input from fd to dynamically allocated buffer,
376 * but maximal max_size byte.
378 static int fd2buf(int fd
, unsigned max_size
, struct osl_object
*obj
)
380 const size_t chunk_size
= 1024;
381 size_t size
= 2048, received
= 0;
383 char *buf
= para_malloc(size
);
386 ret
= recv_bin_buffer(fd
, buf
+ received
, chunk_size
);
390 if (received
+ chunk_size
>= size
) {
392 ret
= -E_INPUT_TOO_LARGE
;
395 buf
= para_realloc(buf
, size
);
399 obj
->size
= received
;
406 * Read data from a file descriptor, and send it to the afs process.
408 * \param fd File descriptor to read data from.
409 * \param arg_obj Pointer to the arguments to \a f.
410 * \param f The callback function.
411 * \param max_len Don't read more than that many bytes from stdin.
412 * \param result The result of the query is stored here.
414 * This function is used by commands that wish to let para_server store
415 * arbitrary data specified by the user (for instance the add_blob family of
416 * commands). First, at most \a max_len bytes are read from \a fd, the result
417 * is concatenated with the buffer given by \a arg_obj, and the combined buffer
418 * is made available to the parent process via shared memory.
420 * \return Negative on errors, the return value of the underlying call to
421 * send_callback_request() otherwise.
423 int stdin_command(int fd
, struct osl_object
*arg_obj
, callback_function
*f
,
424 unsigned max_len
, struct osl_object
*result
)
426 struct osl_object query
, stdin_obj
;
429 ret
= send_buffer(fd
, AWAITING_DATA_MSG
);
432 ret
= fd2buf(fd
, max_len
, &stdin_obj
);
435 query
.size
= arg_obj
->size
+ stdin_obj
.size
;
436 query
.data
= para_malloc(query
.size
);
437 memcpy(query
.data
, arg_obj
->data
, arg_obj
->size
);
438 memcpy((char *)query
.data
+ arg_obj
->size
, stdin_obj
.data
, stdin_obj
.size
);
439 free(stdin_obj
.data
);
440 ret
= send_callback_request(f
, &query
, result
);
446 * Open the audio file with highest score.
448 * \param afd Audio file data is returned here.
450 * This stores all information for streaming the "best" audio file
451 * in the \a afd structure.
453 * \return Positive on success, negative on errors.
455 * \sa close_audio_file(), open_and_update_audio_file().
457 int open_next_audio_file(struct audio_file_data
*afd
)
459 struct osl_row
*aft_row
;
462 ret
= score_get_best(&aft_row
, &afd
->score
);
465 ret
= open_and_update_audio_file(aft_row
, afd
);
472 * Free all resources which were allocated by open_next_audio_file().
474 * \param afd The structure previously filled in by open_next_audio_file().
476 * \return The return value of the underlying call to para_munmap().
478 * \sa open_next_audio_file().
480 int close_audio_file(struct audio_file_data
*afd
)
482 free(afd
->afhi
.chunk_table
);
483 return para_munmap(afd
->map
.data
, afd
->map
.size
);
487 static void play_loop(enum play_mode current_play_mode
)
490 struct audio_file_data afd
;
492 afd
.current_play_mode
= current_play_mode
;
493 for (i
= 0; i
< 0; i
++) {
494 ret
= open_next_audio_file(&afd
);
496 PARA_ERROR_LOG("failed to open next audio file: %d\n", ret
);
499 PARA_NOTICE_LOG("next audio file: %s, score: %li\n", afd
.path
, afd
.score
);
501 close_audio_file(&afd
);
507 static enum play_mode
init_admissible_files(void)
510 char *given_mood
, *given_playlist
;
512 given_mood
= "mood_that_was_given_at_the_command_line";
513 given_playlist
= "given_playlist";
516 ret
= change_current_mood(given_mood
);
519 PARA_WARNING_LOG("ignoring playlist %s\n",
521 return PLAY_MODE_MOOD
;
524 if (given_playlist
) {
525 ret
= playlist_open(given_playlist
);
527 return PLAY_MODE_PLAYLIST
;
529 ret
= change_current_mood(NULL
); /* open first available mood */
531 return PLAY_MODE_MOOD
;
532 change_current_mood(""); /* open dummy mood, always successful */
533 return PLAY_MODE_MOOD
;
536 static int setup_command_socket_or_die(void)
539 char *socket_name
= conf
.afs_socket_arg
;
540 struct sockaddr_un unix_addr
;
543 ret
= create_local_socket(socket_name
, &unix_addr
,
544 S_IRUSR
| S_IWUSR
| S_IRGRP
| S_IWGRP
| S_IWOTH
);
546 PARA_EMERG_LOG("%s: %s\n", PARA_STRERROR(-ret
), socket_name
);
549 if (listen(ret
, 5) < 0) {
550 PARA_EMERG_LOG("%s", "can not listen on socket\n");
553 PARA_INFO_LOG("listening on command socket %s (fd %d)\n", socket_name
,
558 static int server_socket
;
559 static struct command_task command_task_struct
;
560 static struct signal_task signal_task_struct
;
562 static void unregister_tasks(void)
564 unregister_task(&command_task_struct
.task
);
565 unregister_task(&signal_task_struct
.task
);
568 static void close_afs_tables(enum osl_close_flags flags
)
570 PARA_NOTICE_LOG("closing afs_tables\n");
571 score_shutdown(flags
);
572 attribute_shutdown(flags
);
573 close_current_mood();
575 moods_shutdown(flags
);
576 playlists_shutdown(flags
);
577 lyrics_shutdown(flags
);
578 images_shutdown(flags
);
582 static void signal_pre_select(struct sched
*s
, struct task
*t
)
584 struct signal_task
*st
= t
->private_data
;
586 para_fd_set(st
->fd
, &s
->rfds
, &s
->max_fileno
);
589 static void signal_post_select(struct sched
*s
, struct task
*t
)
591 struct signal_task
*st
= t
->private_data
;
593 if (!FD_ISSET(st
->fd
, &s
->rfds
))
595 st
->signum
= para_next_signal();
597 if (st
->signum
== SIGUSR1
)
598 return; /* ignore SIGUSR1 */
599 PARA_NOTICE_LOG("caught signal %d\n", st
->signum
);
600 t
->ret
= -E_SIGNAL_CAUGHT
;
604 static void register_signal_task(void)
606 struct signal_task
*st
= &signal_task_struct
;
607 st
->fd
= para_signal_init();
608 PARA_INFO_LOG("signal pipe: fd %d\n", st
->fd
);
609 para_install_sighandler(SIGINT
);
610 para_install_sighandler(SIGTERM
);
611 para_install_sighandler(SIGPIPE
);
613 st
->task
.pre_select
= signal_pre_select
;
614 st
->task
.post_select
= signal_post_select
;
615 st
->task
.private_data
= st
;
616 sprintf(st
->task
.status
, "signal task");
617 register_task(&st
->task
);
620 static void command_pre_select(struct sched
*s
, struct task
*t
)
622 struct command_task
*ct
= t
->private_data
;
624 para_fd_set(ct
->fd
, &s
->rfds
, &s
->max_fileno
);
628 * On errors, negative value is written to fd.
629 * On success: If query produced a result, the result_shmid is written to fd.
630 * Otherwise, zero is written.
632 static int call_callback(int fd
, int query_shmid
)
634 void *query_shm
, *result_shm
;
635 struct callback_query
*cq
;
636 struct callback_result
*cr
;
637 struct osl_object query
, result
= {.data
= NULL
};
638 int result_shmid
= -1, ret
, ret2
;
640 ret
= shm_attach(query_shmid
, ATTACH_RW
, &query_shm
);
644 query
.data
= (char *)query_shm
+ sizeof(*cq
);
645 query
.size
= cq
->query_size
;
646 ret
= cq
->handler(&query
, &result
);
647 ret2
= shm_detach(query_shm
);
648 if (ret2
< 0 && ret
>= 0)
653 if (!result
.data
|| !result
.size
)
655 ret
= shm_new(result
.size
+ sizeof(struct callback_result
));
659 ret
= shm_attach(result_shmid
, ATTACH_RW
, &result_shm
);
663 cr
->result_size
= result
.size
;
664 memcpy(result_shm
+ sizeof(*cr
), result
.data
, result
.size
);
665 ret
= shm_detach(result_shm
);
671 ret2
= send_bin_buffer(fd
, (char *)&ret
, sizeof(int));
672 if (ret
< 0 || ret2
< 0) {
673 if (result_shmid
>= 0)
674 if (shm_destroy(result_shmid
) < 0)
675 PARA_ERROR_LOG("destroy result failed\n");
682 static void command_post_select(struct sched
*s
, struct task
*t
)
684 struct command_task
*ct
= t
->private_data
;
685 struct sockaddr_un unix_addr
;
686 char buf
[sizeof(uint32_t) + sizeof(int)];
691 if (!FD_ISSET(ct
->fd
, &s
->rfds
))
693 t
->ret
= para_accept(ct
->fd
, &unix_addr
, sizeof(unix_addr
));
697 * The following errors may be caused by a malicious local user. So do
698 * not return an error in this case as this would terminate para_afs
702 /* FIXME: This is easily dosable (peer doesn't send data) */
703 t
->ret
= recv_bin_buffer(fd
, buf
, sizeof(buf
));
705 PARA_NOTICE_LOG("%s (%d)\n", PARA_STRERROR(-t
->ret
), t
->ret
);
708 if (t
->ret
!= sizeof(buf
)) {
709 PARA_NOTICE_LOG("short read (%d bytes, expected %lu)\n",
710 t
->ret
, (long unsigned) sizeof(buf
));
713 cookie
= *(uint32_t *)buf
;
714 if (cookie
!= ct
->cookie
) {
715 PARA_NOTICE_LOG("received invalid cookie(got %u, expected %u)\n",
716 (unsigned)cookie
, (unsigned)ct
->cookie
);
719 query_shmid
= *(int *)(buf
+ sizeof(cookie
));
720 if (query_shmid
< 0) {
721 PARA_WARNING_LOG("received invalid query shmid %d)\n",
725 /* Ignore return value: Errors might be ok here. */
726 call_callback(fd
, query_shmid
);
732 static void register_command_task(uint32_t cookie
)
734 struct command_task
*ct
= &command_task_struct
;
735 ct
->fd
= setup_command_socket_or_die();
738 ct
->task
.pre_select
= command_pre_select
;
739 ct
->task
.post_select
= command_post_select
;
740 ct
->task
.private_data
= ct
;
741 sprintf(ct
->task
.status
, "command task");
742 register_task(&ct
->task
);
745 void register_tasks(uint32_t cookie
)
747 register_signal_task();
748 register_command_task(cookie
);
751 static char *database_dir
;
753 static int make_database_dir(void)
758 if (conf
.afs_database_dir_given
)
759 database_dir
= para_strdup(conf
.afs_database_dir_arg
);
761 char *home
= para_homedir();
762 database_dir
= make_message(
763 "%s/.paraslash/afs_database", home
);
767 PARA_INFO_LOG("afs_database dir %s\n", database_dir
);
768 ret
= para_mkdir(database_dir
, 0777);
769 if (ret
>= 0 || ret
== -E_EXIST
)
776 static int open_afs_tables(void)
778 int ret
= make_database_dir();
782 ret
= attribute_init(&afs_tables
[TBLNUM_ATTRIBUTES
], database_dir
);
785 ret
= moods_init(&afs_tables
[TBLNUM_MOODS
], database_dir
);
787 goto moods_init_error
;
788 ret
= playlists_init(&afs_tables
[TBLNUM_PLAYLIST
], database_dir
);
790 goto playlists_init_error
;
791 ret
= lyrics_init(&afs_tables
[TBLNUM_LYRICS
], database_dir
);
793 goto lyrics_init_error
;
794 ret
= images_init(&afs_tables
[TBLNUM_IMAGES
], database_dir
);
796 goto images_init_error
;
797 ret
= score_init(&afs_tables
[TBLNUM_SCORES
], database_dir
);
799 goto score_init_error
;
800 ret
= aft_init(&afs_tables
[TBLNUM_AUDIO_FILES
], database_dir
);
806 score_shutdown(OSL_MARK_CLEAN
);
808 images_shutdown(OSL_MARK_CLEAN
);
810 lyrics_shutdown(OSL_MARK_CLEAN
);
812 playlists_shutdown(OSL_MARK_CLEAN
);
813 playlists_init_error
:
814 moods_shutdown(OSL_MARK_CLEAN
);
816 attribute_shutdown(OSL_MARK_CLEAN
);
820 __noreturn
int afs_init(uint32_t cookie
, int socket_fd
)
822 enum play_mode current_play_mode
;
824 int ret
= open_afs_tables();
827 PARA_EMERG_LOG("%s\n", PARA_STRERROR(-ret
));
830 server_socket
= socket_fd
;
831 ret
= mark_fd_nonblock(server_socket
);
834 PARA_INFO_LOG("server_socket: %d, afs_socket_cookie: %u\n",
835 server_socket
, (unsigned) cookie
);
836 current_play_mode
= init_admissible_files();
837 register_tasks(cookie
);
838 s
.default_timeout
.tv_sec
= 0;
839 s
.default_timeout
.tv_usec
= 99 * 1000;
842 PARA_EMERG_LOG("%s\n", PARA_STRERROR(-ret
));
843 close_afs_tables(OSL_MARK_CLEAN
);
847 static int create_tables_callback(const struct osl_object
*query
,
848 __a_unused
struct osl_object
*result
)
850 uint32_t table_mask
= *(uint32_t *)query
->data
;
853 close_afs_tables(OSL_MARK_CLEAN
);
854 for (i
= 0; i
< NUM_AFS_TABLES
; i
++) {
855 struct table_info
*ti
= afs_tables
+ i
;
857 if (ti
->flags
& TBLFLAG_SKIP_CREATE
)
859 if (!(table_mask
& (1 << i
)))
861 ret
= osl_create_table(ti
->desc
);
865 ret
= open_afs_tables();
866 return ret
< 0? ret
: 0;
869 int com_init(int fd
, int argc
, char * const * const argv
)
872 uint32_t table_mask
= (1 << (NUM_AFS_TABLES
+ 1)) - 1;
873 struct osl_object query
= {.data
= &table_mask
,
874 .size
= sizeof(table_mask
)};
878 for (i
= 1; i
< argc
; i
++) {
879 for (j
= 0; j
< NUM_AFS_TABLES
; j
++) {
880 struct table_info
*ti
= afs_tables
+ j
;
882 if (ti
->flags
& TBLFLAG_SKIP_CREATE
)
884 if (strcmp(argv
[i
], ti
->desc
->name
))
886 table_mask
|= (1 << j
);
889 if (j
== NUM_AFS_TABLES
)
890 return -E_BAD_TABLE_NAME
;
893 ret
= send_callback_request(create_tables_callback
, &query
, NULL
);
896 return send_va_buffer(fd
, "successfully created afs table(s)\n");
899 enum com_check_flags
{
905 int com_check(int fd
, int argc
, char * const * const argv
)
909 struct osl_object result
;
911 for (i
= 1; i
< argc
; i
++) {
912 const char *arg
= argv
[i
];
915 if (!strcmp(arg
, "--")) {
919 if (!strcmp(arg
, "-a")) {
923 if (!strcmp(arg
, "-p")) {
924 flags
|= CHECK_PLAYLISTS
;
927 if (!strcmp(arg
, "-m")) {
928 flags
|= CHECK_MOODS
;
931 return -E_AFS_SYNTAX
;
934 return -E_AFS_SYNTAX
;
937 if (flags
& CHECK_AFT
) {
938 ret
= send_callback_request(aft_check_callback
, NULL
, &result
);
942 ret
= send_buffer(fd
, (char *) result
.data
);
948 if (flags
& CHECK_PLAYLISTS
) {
949 ret
= send_callback_request(playlist_check_callback
, NULL
, &result
);
953 ret
= send_buffer(fd
, (char *) result
.data
);
959 if (flags
& CHECK_MOODS
) {
960 ret
= send_callback_request(mood_check_callback
, NULL
, &result
);
964 ret
= send_buffer(fd
, (char *) result
.data
);