2 * This file is part of DisOrder.
3 * Copyright (C) 2006-2008 Richard Kettlewell
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20 /** @file lib/eclient.c
21 * @brief Client code for event-driven programs
26 #include <sys/types.h>
27 #include <sys/socket.h>
28 #include <netinet/in.h>
39 #include "configuration.h"
46 #include "inputline.h"
53 #include "client-common.h"
55 /* TODO: more commands */
57 /** @brief How often to send data to the server when receiving logs */
58 #define LOG_PROD_INTERVAL 10
60 /* Types *********************************************************************/
62 /** @brief Client state */
64 state_disconnected
, /**< @brief not connected */
65 state_connecting
, /**< @brief waiting for connect() */
66 state_connected
, /**< @brief connected but not authenticated */
67 state_idle
, /**< @brief not doing anything */
68 state_cmdresponse
, /**< @brief waiting for command resonse */
69 state_body
, /**< @brief accumulating body */
70 state_log
, /**< @brief monitoring log */
73 /** @brief Names for @ref client_state */
74 static const char *const states
[] = {
84 struct operation
; /* forward decl */
86 /** @brief Type of an operation callback */
87 typedef void operation_callback(disorder_eclient
*c
, struct operation
*op
);
89 /** @brief A pending operation.
91 * This can be either a command or part of the authentication protocol. In the
92 * former case new commands are appended to the list, in the latter case they
93 * are inserted at the front. */
95 struct operation
*next
; /**< @brief next operation */
96 char *cmd
; /**< @brief command to send or 0 */
97 operation_callback
*opcallback
; /**< @brief internal completion callback */
98 void (*completed
)(); /**< @brief user completion callback or 0 */
99 void *v
; /**< @brief data for COMPLETED */
100 disorder_eclient
*client
; /**< @brief owning client */
102 /** @brief true if sent to server
104 * This is cleared by disorder_eclient_close(), forcing all queued
105 * commands to be transparently resent.
110 /** @brief Client structure */
111 struct disorder_eclient
{
113 int fd
; /**< @brief connection to server */
114 enum client_state state
; /**< @brief current state */
115 int authenticated
; /**< @brief true when authenicated */
116 struct dynstr output
; /**< @brief output buffer */
117 struct dynstr input
; /**< @brief input buffer */
118 int eof
; /**< @brief input buffer is at EOF */
119 const disorder_eclient_callbacks
*callbacks
; /**< @brief error callbacks */
120 void *u
; /**< @brief user data */
121 struct operation
*ops
; /**< @brief queue of operations */
122 struct operation
**opstail
; /**< @brief queue tail */
123 /* accumulated response */
124 int rc
; /**< @brief response code */
125 char *line
; /**< @brief complete line */
126 struct vector vec
; /**< @brief body */
128 const disorder_eclient_log_callbacks
*log_callbacks
;
129 /**< @brief log callbacks
131 * Once disorder_eclient_log() has been issued this is always set. When we
132 * re-connect it is checked to re-issue the log command.
134 void *log_v
; /**< @brief user data */
135 unsigned long statebits
; /**< @brief latest state */
138 /**< @brief last time we sent a prod
140 * When we are receiving log data we send a "prod" byte to the server from
141 * time to time so that we detect broken connections reasonably quickly. The
142 * server just ignores these bytes.
145 /** @brief Protocol version */
149 /* Forward declarations ******************************************************/
151 static int start_connect(disorder_eclient
*c
);
152 static void process_line(disorder_eclient
*c
, char *line
);
153 static void maybe_connected(disorder_eclient
*c
);
154 static void authbanner_opcallback(disorder_eclient
*c
,
155 struct operation
*op
);
156 static void authuser_opcallback(disorder_eclient
*c
,
157 struct operation
*op
);
158 static void complete(disorder_eclient
*c
);
159 static void send_output(disorder_eclient
*c
);
160 static void put(disorder_eclient
*c
, const char *s
, size_t n
);
161 static void read_input(disorder_eclient
*c
);
162 static void stash_command(disorder_eclient
*c
,
164 operation_callback
*opcallback
,
169 static void log_opcallback(disorder_eclient
*c
, struct operation
*op
);
170 static void logline(disorder_eclient
*c
, const char *line
);
171 static void logentry_completed(disorder_eclient
*c
, int nvec
, char **vec
);
172 static void logentry_failed(disorder_eclient
*c
, int nvec
, char **vec
);
173 static void logentry_moved(disorder_eclient
*c
, int nvec
, char **vec
);
174 static void logentry_playing(disorder_eclient
*c
, int nvec
, char **vec
);
175 static void logentry_queue(disorder_eclient
*c
, int nvec
, char **vec
);
176 static void logentry_recent_added(disorder_eclient
*c
, int nvec
, char **vec
);
177 static void logentry_recent_removed(disorder_eclient
*c
, int nvec
, char **vec
);
178 static void logentry_removed(disorder_eclient
*c
, int nvec
, char **vec
);
179 static void logentry_scratched(disorder_eclient
*c
, int nvec
, char **vec
);
180 static void logentry_state(disorder_eclient
*c
, int nvec
, char **vec
);
181 static void logentry_volume(disorder_eclient
*c
, int nvec
, char **vec
);
182 static void logentry_rescanned(disorder_eclient
*c
, int nvec
, char **vec
);
183 static void logentry_user_add(disorder_eclient
*c
, int nvec
, char **vec
);
184 static void logentry_user_confirm(disorder_eclient
*c
, int nvec
, char **vec
);
185 static void logentry_user_delete(disorder_eclient
*c
, int nvec
, char **vec
);
186 static void logentry_user_edit(disorder_eclient
*c
, int nvec
, char **vec
);
187 static void logentry_rights_changed(disorder_eclient
*c
, int nvec
, char **vec
);
189 /* Tables ********************************************************************/
191 /** @brief One possible log entry */
192 struct logentry_handler
{
193 const char *name
; /**< @brief Entry name */
194 int min
; /**< @brief Minimum arguments */
195 int max
; /**< @brief Maximum arguments */
196 void (*handler
)(disorder_eclient
*c
,
198 char **vec
); /**< @brief Handler function */
201 /** @brief Table for parsing log entries */
202 static const struct logentry_handler logentry_handlers
[] = {
203 #define LE(X, MIN, MAX) { #X, MIN, MAX, logentry_##X }
208 LE(queue
, 2, INT_MAX
),
209 LE(recent_added
, 2, INT_MAX
),
210 LE(recent_removed
, 1, 1),
213 LE(rights_changed
, 1, 1),
217 LE(user_confirm
, 1, 1),
218 LE(user_delete
, 1, 1),
223 /* Setup and teardown ********************************************************/
225 /** @brief Create a new client
227 * Does NOT connect the client - connections are made (and re-made) on demand.
229 disorder_eclient
*disorder_eclient_new(const disorder_eclient_callbacks
*cb
,
231 disorder_eclient
*c
= xmalloc(sizeof *c
);
232 D(("disorder_eclient_new"));
236 c
->opstail
= &c
->ops
;
237 vector_init(&c
->vec
);
238 dynstr_init(&c
->input
);
239 dynstr_init(&c
->output
);
243 /** @brief Disconnect a client
244 * @param c Client to disconnect
246 * NB that this routine just disconnnects the TCP connection. It does not
247 * destroy the client! If you continue to use it then it will attempt to
250 void disorder_eclient_close(disorder_eclient
*c
) {
251 struct operation
*op
;
253 D(("disorder_eclient_close"));
255 D(("disorder_eclient_close closing fd %d", c
->fd
));
256 c
->callbacks
->poll(c
->u
, c
, c
->fd
, 0);
259 c
->state
= state_disconnected
;
265 c
->authenticated
= 0;
266 /* We'll need to resend all operations */
267 for(op
= c
->ops
; op
; op
= op
->next
)
269 /* Drop our use a hint that we're disconnected */
270 if(c
->log_callbacks
&& c
->log_callbacks
->state
)
271 c
->log_callbacks
->state(c
->log_v
, c
->statebits
);
274 /** @brief Return current state */
275 unsigned long disorder_eclient_state(const disorder_eclient
*c
) {
276 return c
->statebits
| (c
->state
> state_connected ? DISORDER_CONNECTED
: 0);
279 /* Error reporting ***********************************************************/
281 /** @brief called when a connection error occurs
283 * After this called we will be disconnected (by disorder_eclient_close()),
284 * so there will be a reconnection before any commands can be sent.
286 static int comms_error(disorder_eclient
*c
, const char *fmt
, ...) {
292 byte_xvasprintf(&s
, fmt
, ap
);
294 disorder_eclient_close(c
);
295 c
->callbacks
->comms_error(c
->u
, s
);
299 /** @brief called when the server reports an error */
300 static int protocol_error(disorder_eclient
*c
, struct operation
*op
,
301 int code
, const char *fmt
, ...) {
305 D(("protocol_error"));
307 byte_xvasprintf(&s
, fmt
, ap
);
309 c
->callbacks
->protocol_error(c
->u
, op
->v
, code
, s
);
313 /* State machine *************************************************************/
315 /** @brief Called when there's something to do
317 * @param mode bitmap of @ref DISORDER_POLL_READ and/or @ref DISORDER_POLL_WRITE.
319 * This should be called from by your code when the file descriptor is readable
320 * or writable (as requested by the @c poll callback, see @ref
321 * disorder_eclient_callbacks) and in any case from time to time (with @p mode
322 * = 0) to allow for retries to work.
324 void disorder_eclient_polled(disorder_eclient
*c
, unsigned mode
) {
325 struct operation
*op
;
328 D(("disorder_eclient_polled fd=%d state=%s mode=[%s %s]",
329 c
->fd
, states
[c
->state
],
330 mode
& DISORDER_POLL_READ ?
"READ" : "",
331 mode
& DISORDER_POLL_WRITE ?
"WRITE" : ""));
332 /* The pattern here is to check each possible state in turn and try to
333 * advance (though on error we might go back). If we advance we leave open
334 * the possibility of falling through to the next state, but we set the mode
335 * bits to 0, to avoid false positives (which matter more in some cases than
338 if(c
->state
== state_disconnected
) {
339 D(("state_disconnected"));
340 /* If there is no password yet then we cannot connect */
341 if(!config
->password
) {
342 comms_error(c
, "no password is configured");
346 /* might now be state_disconnected (on error), state_connecting (slow
347 * connect) or state_connected (fast connect). If state_disconnected then
348 * we just rely on a periodic callback from the event loop sometime. */
352 if(c
->state
== state_connecting
&& mode
) {
353 D(("state_connecting"));
355 /* Might be state_disconnected (on error) or state_connected (on success).
356 * In the former case we rely on the event loop for a periodic callback to
361 if(c
->state
== state_connected
) {
362 D(("state_connected"));
363 /* We just connected. Initiate the authentication protocol. */
364 stash_command(c
, 1/*queuejump*/, authbanner_opcallback
,
365 0/*completed*/, 0/*v*/, 0/*cmd*/);
366 /* We never stay is state_connected very long. We could in principle jump
367 * straight to state_cmdresponse since there's actually no command to
368 * send, but that would arguably be cheating. */
369 c
->state
= state_idle
;
372 if(c
->state
== state_idle
) {
374 /* We are connected, and have finished any command we set off, look for
378 if(c
->authenticated
) {
379 /* Transmit all unsent operations */
380 for(op
= c
->ops
; op
; op
= op
->next
) {
382 put(c
, op
->cmd
, strlen(op
->cmd
));
387 /* Just send the head operation */
388 if(c
->ops
->cmd
&& !c
->ops
->sent
) {
389 put(c
, c
->ops
->cmd
, strlen(c
->ops
->cmd
));
393 /* Awaiting response for the operation at the head of the list */
394 c
->state
= state_cmdresponse
;
397 c
->callbacks
->report(c
->u
, 0);
400 /* Queue up a byte to send */
401 if(c
->state
== state_log
402 && c
->output
.nvec
== 0
403 && time(&now
) - c
->last_prod
> LOG_PROD_INTERVAL
) {
408 if(c
->state
== state_cmdresponse
409 || c
->state
== state_body
410 || c
->state
== state_log
) {
411 D(("state_%s", states
[c
->state
]));
412 /* We are awaiting a response */
413 if(mode
& DISORDER_POLL_WRITE
) send_output(c
);
414 if(mode
& DISORDER_POLL_READ
) read_input(c
);
415 /* There are a couple of reasons we might want to re-enter the state
416 * machine from the top. state_idle is obvious: there may be further
417 * commands to process. Re-entering on state_disconnected means that we
418 * immediately retry connection if a comms error occurs during a command.
419 * This is different to the case where a connection fails, where we await a
420 * spontaneous call to initiate the retry. */
422 case state_disconnected
: /* lost connection */
423 case state_idle
: /* completed a command */
425 disorder_eclient_polled(c
, 0);
432 /* Figure out what to set the mode to */
434 case state_disconnected
:
435 D(("state_disconnected (2)"));
436 /* Probably an error occurred. Await a retry. */
439 case state_connecting
:
440 D(("state_connecting (2)"));
441 /* Waiting for connect to complete */
442 mode
= DISORDER_POLL_READ
|DISORDER_POLL_WRITE
;
444 case state_connected
:
445 D(("state_connected (2)"));
446 assert(!"should never be in state_connected here");
449 D(("state_idle (2)"));
450 /* Connected but nothing to do. */
453 case state_cmdresponse
:
456 D(("state_%s (2)", states
[c
->state
]));
457 /* Gathering a response. Wait for input. */
458 mode
= DISORDER_POLL_READ
;
459 /* Flush any pending output. */
460 if(c
->output
.nvec
) mode
|= DISORDER_POLL_WRITE
;
463 D(("fd=%d new mode [%s %s]",
465 mode
& DISORDER_POLL_READ ?
"READ" : "",
466 mode
& DISORDER_POLL_WRITE ?
"WRITE" : ""));
467 if(c
->fd
!= -1) c
->callbacks
->poll(c
->u
, c
, c
->fd
, mode
);
470 /** @brief Called to start connecting */
471 static int start_connect(disorder_eclient
*c
) {
475 D(("start_connect"));
476 if((len
= find_server(&sa
, &c
->ident
)) == (socklen_t
)-1)
477 return comms_error(c
, "cannot look up server"); /* TODO better error */
482 if((c
->fd
= socket(sa
->sa_family
, SOCK_STREAM
, 0)) < 0)
483 return comms_error(c
, "socket: %s", strerror(errno
));
487 if(connect(c
->fd
, sa
, len
) < 0) {
491 c
->state
= state_connecting
;
492 /* We are called from _polled so the state machine will get to do its
496 /* Signal the error to the caller. */
497 return comms_error(c
, "connecting to %s: %s", c
->ident
, strerror(errno
));
500 c
->state
= state_connected
;
504 /** @brief Called when poll triggers while waiting for a connection */
505 static void maybe_connected(disorder_eclient
*c
) {
506 /* We either connected, or got an error. */
508 socklen_t len
= sizeof err
;
510 D(("maybe_connected"));
511 /* Work around over-enthusiastic error slippage */
512 if(getsockopt(c
->fd
, SOL_SOCKET
, SO_ERROR
, &err
, &len
) < 0)
515 /* The connection failed */
516 comms_error(c
, "connecting to %s: %s", c
->ident
, strerror(err
));
517 /* sets state_disconnected */
521 /* The connection succeeded */
522 c
->state
= state_connected
;
523 byte_xasprintf(&r
, "connected to %s", c
->ident
);
524 c
->callbacks
->report(c
->u
, r
);
525 /* If this is a log client we expect to get a bunch of updates from the
526 * server straight away */
530 /* Authentication ************************************************************/
532 /** @brief Called with the greeting from the server */
533 static void authbanner_opcallback(disorder_eclient
*c
,
534 struct operation
*op
) {
536 const unsigned char *nonce
;
540 const char *protocol
, *algorithm
, *challenge
;
542 D(("authbanner_opcallback"));
544 || !(rvec
= split(c
->line
+ 4, &nrvec
, SPLIT_QUOTES
, 0, 0))
546 /* Banner told us to go away, or was malformed. We cannot proceed. */
547 protocol_error(c
, op
, c
->rc
, "%s: %s", c
->ident
, c
->line
);
548 disorder_eclient_close(c
);
568 protocol_error(c
, op
, c
->rc
, "%s: %s", c
->ident
, c
->line
);
569 disorder_eclient_close(c
);
572 c
->protocol
= atoi(protocol
);
573 if(c
->protocol
< 1 || c
->protocol
> 2) {
574 protocol_error(c
, op
, c
->rc
, "%s: %s", c
->ident
, c
->line
);
575 disorder_eclient_close(c
);
578 nonce
= unhex(challenge
, &nonce_len
);
579 res
= authhash(nonce
, nonce_len
, config
->password
, algorithm
);
581 protocol_error(c
, op
, c
->rc
, "%s: unknown authentication algorithm '%s'",
582 c
->ident
, algorithm
);
583 disorder_eclient_close(c
);
586 stash_command(c
, 1/*queuejump*/, authuser_opcallback
, 0/*completed*/, 0/*v*/,
587 "user", quoteutf8(config
->username
), quoteutf8(res
),
591 /** @brief Called with the response to the @c user command */
592 static void authuser_opcallback(disorder_eclient
*c
,
593 struct operation
*op
) {
596 D(("authuser_opcallback"));
597 if(c
->rc
/ 100 != 2) {
598 /* Wrong password or something. We cannot proceed. */
599 protocol_error(c
, op
, c
->rc
, "%s: %s", c
->ident
, c
->line
);
600 disorder_eclient_close(c
);
603 /* OK, we're authenticated now. */
604 c
->authenticated
= 1;
605 byte_xasprintf(&r
, "authenticated with %s", c
->ident
);
606 c
->callbacks
->report(c
->u
, r
);
607 if(c
->log_callbacks
&& !(c
->ops
&& c
->ops
->opcallback
== log_opcallback
))
608 /* We are a log client, switch to logging mode */
609 stash_command(c
, 0/*queuejump*/, log_opcallback
, 0/*completed*/, c
->log_v
,
613 /* Output ********************************************************************/
615 /* Chop N bytes off the front of a dynstr */
616 static void consume(struct dynstr
*d
, int n
) {
617 D(("consume %d", n
));
618 assert(d
->nvec
>= n
);
619 memmove(d
->vec
, d
->vec
+ n
, d
->nvec
- n
);
623 /* Write some bytes */
624 static void put(disorder_eclient
*c
, const char *s
, size_t n
) {
625 D(("put %d %.*s", c
->fd
, (int)n
, s
));
626 dynstr_append_bytes(&c
->output
, s
, n
);
629 /* Called when we can write to our FD, or at any other time */
630 static void send_output(disorder_eclient
*c
) {
633 D(("send_output %d bytes pending", c
->output
.nvec
));
634 if(c
->state
> state_connecting
&& c
->output
.nvec
) {
635 n
= write(c
->fd
, c
->output
.vec
, c
->output
.nvec
);
642 comms_error(c
, "writing to %s: %s", c
->ident
, strerror(errno
));
646 consume(&c
->output
, n
);
650 /* Input *********************************************************************/
652 /* Called when c->fd might be readable, or at any other time */
653 static void read_input(disorder_eclient
*c
) {
658 D(("read_input in state %s", states
[c
->state
]));
659 if(c
->state
<= state_connected
) return; /* ignore bogus calls */
660 /* read some more input */
661 n
= read(c
->fd
, buffer
, sizeof buffer
);
668 comms_error(c
, "reading from %s: %s", c
->ident
, strerror(errno
));
671 return; /* no new input to process */
673 D(("read %d bytes: [%.*s]", n
, n
, buffer
));
674 dynstr_append_bytes(&c
->input
, buffer
, n
);
677 /* might have more than one line to process */
678 while(c
->state
> state_connecting
679 && (nl
= memchr(c
->input
.vec
, '\n', c
->input
.nvec
))) {
680 process_line(c
, xstrndup(c
->input
.vec
, nl
- c
->input
.vec
));
681 /* we might have disconnected along the way, which zogs the input buffer */
682 if(c
->state
> state_connecting
)
683 consume(&c
->input
, (nl
- c
->input
.vec
) + 1);
686 comms_error(c
, "reading from %s: server disconnected", c
->ident
);
687 c
->authenticated
= 0;
691 /* called with a line that has just been read */
692 static void process_line(disorder_eclient
*c
, char *line
) {
693 D(("process_line %d [%s]", c
->fd
, line
));
695 case state_cmdresponse
:
696 /* This is the first line of a response */
697 if(!(line
[0] >= '0' && line
[0] <= '9'
698 && line
[1] >= '0' && line
[1] <= '9'
699 && line
[2] >= '0' && line
[2] <= '9'
701 fatal(0, "invalid response from server: %s", line
);
702 c
->rc
= (line
[0] * 10 + line
[1]) * 10 + line
[2] - 111 * '0';
706 /* We need to collect the body. */
707 c
->state
= state_body
;
708 vector_init(&c
->vec
);
711 assert(c
->log_callbacks
!= 0);
712 if(c
->log_callbacks
->connected
)
713 c
->log_callbacks
->connected(c
->log_v
);
714 c
->state
= state_log
;
717 /* We've got the whole response. Go into the idle state so the state
718 * machine knows we're done and then call the operation callback. */
724 if(strcmp(line
, ".")) {
725 /* A line from the body */
726 vector_append(&c
->vec
, line
+ (line
[0] == '.'));
728 /* End of the body. */
729 vector_terminate(&c
->vec
);
734 if(strcmp(line
, ".")) {
735 logline(c
, line
+ (line
[0] == '.'));
740 assert(!"wrong state for location");
745 /* Called when an operation completes */
746 static void complete(disorder_eclient
*c
) {
747 struct operation
*op
;
750 /* Pop the operation off the queue */
753 if(c
->opstail
== &op
->next
)
754 c
->opstail
= &c
->ops
;
755 /* If we've pipelined a command ahead then we go straight to cmdresponser.
756 * Otherwise we go to idle, which will arrange further sends. */
757 c
->state
= c
->ops
&& c
->ops
->sent ? state_cmdresponse
: state_idle
;
758 op
->opcallback(c
, op
);
759 /* Note that we always call the opcallback even on error, though command
760 * opcallbacks generally always do the same error handling, i.e. just call
761 * protocol_error(). It's the auth* opcallbacks that have different
765 /* Operation setup ***********************************************************/
767 static void stash_command_vector(disorder_eclient
*c
,
769 operation_callback
*opcallback
,
774 struct operation
*op
= xmalloc(sizeof *op
);
780 for(n
= 0; n
< ncmd
; ++n
) {
782 dynstr_append(&d
, ' ');
783 dynstr_append_string(&d
, quoteutf8(cmd
[n
]));
785 dynstr_append(&d
, '\n');
786 dynstr_terminate(&d
);
789 op
->cmd
= 0; /* usually, awaiting challenge */
790 op
->opcallback
= opcallback
;
791 op
->completed
= completed
;
795 assert(op
->sent
== 0);
797 /* Authentication operations jump the queue of useful commands */
800 if(c
->opstail
== &c
->ops
)
801 c
->opstail
= &op
->next
;
802 for(op
= c
->ops
; op
; op
= op
->next
)
806 c
->opstail
= &op
->next
;
810 static void vstash_command(disorder_eclient
*c
,
812 operation_callback
*opcallback
,
815 const char *cmd
, va_list ap
) {
819 D(("vstash_command %s", cmd ? cmd
: "NULL"));
822 vector_append(&vec
, (char *)cmd
);
823 while((arg
= va_arg(ap
, char *)))
824 vector_append(&vec
, arg
);
825 stash_command_vector(c
, queuejump
, opcallback
, completed
, v
,
828 stash_command_vector(c
, queuejump
, opcallback
, completed
, v
, 0, 0);
831 static void stash_command(disorder_eclient
*c
,
833 operation_callback
*opcallback
,
841 vstash_command(c
, queuejump
, opcallback
, completed
, v
, cmd
, ap
);
845 /* Command support ***********************************************************/
847 static const char *errorstring(disorder_eclient
*c
) {
850 byte_xasprintf(&s
, "%s: %s: %d", c
->ident
, c
->line
, c
->rc
);
854 /* for commands with a quoted string response */
855 static void string_response_opcallback(disorder_eclient
*c
,
856 struct operation
*op
) {
857 disorder_eclient_string_response
*completed
858 = (disorder_eclient_string_response
*)op
->completed
;
860 D(("string_response_callback"));
861 if(c
->rc
/ 100 == 2 || c
->rc
== 555) {
864 completed(op
->v
, NULL
, NULL
);
865 else if(c
->protocol
>= 2) {
866 char **rr
= split(c
->line
+ 4, 0, SPLIT_QUOTES
, 0, 0);
869 completed(op
->v
, NULL
, *rr
);
871 /* TODO error message a is bit lame but generally indicates a server
872 * bug rather than anything the user can address */
873 completed(op
->v
, "error parsing response", NULL
);
875 completed(op
->v
, NULL
, c
->line
+ 4);
878 completed(op
->v
, errorstring(c
), NULL
);
881 /* for commands with a simple integer response */
882 static void integer_response_opcallback(disorder_eclient
*c
,
883 struct operation
*op
) {
884 disorder_eclient_integer_response
*completed
885 = (disorder_eclient_integer_response
*)op
->completed
;
887 D(("string_response_callback"));
888 if(c
->rc
/ 100 == 2) {
892 e
= xstrtol(&n
, c
->line
+ 4, 0, 10);
894 completed(op
->v
, strerror(e
), 0);
896 completed(op
->v
, 0, n
);
898 completed(op
->v
, errorstring(c
), 0);
901 /* for commands with no response */
902 static void no_response_opcallback(disorder_eclient
*c
,
903 struct operation
*op
) {
904 disorder_eclient_no_response
*completed
905 = (disorder_eclient_no_response
*)op
->completed
;
907 D(("no_response_callback"));
909 completed(op
->v
, NULL
);
911 completed(op
->v
, errorstring(c
));
914 /* error callback for queue_unmarshall */
915 static void eclient_queue_error(const char *msg
,
917 struct operation
*op
= u
;
919 /* TODO don't use protocol_error here */
920 protocol_error(op
->client
, op
, -1, "error parsing queue entry: %s", msg
);
923 /* for commands that expect a queue dump */
924 static void queue_response_opcallback(disorder_eclient
*c
,
925 struct operation
*op
) {
926 disorder_eclient_queue_response
*const completed
927 = (disorder_eclient_queue_response
*)op
->completed
;
929 int parse_failed
= 0;
930 struct queue_entry
*q
, *qh
= 0, **qtail
= &qh
, *qlast
= 0;
932 D(("queue_response_callback"));
933 if(c
->rc
/ 100 == 2) {
934 /* parse the queue */
935 for(n
= 0; n
< c
->vec
.nvec
; ++n
) {
936 q
= xmalloc(sizeof *q
);
937 D(("queue_unmarshall %s", c
->vec
.vec
[n
]));
938 if(!queue_unmarshall(q
, c
->vec
.vec
[n
], NULL
, op
)) {
946 /* Currently we pass the partial queue to the callback along with the
947 * error. This might not be very useful in practice... */
949 completed(op
->v
, "cannot parse result", qh
);
951 completed(op
->v
, 0, qh
);
953 completed(op
->v
, errorstring(c
), 0);
957 static void playing_response_opcallback(disorder_eclient
*c
,
958 struct operation
*op
) {
959 disorder_eclient_queue_response
*const completed
960 = (disorder_eclient_queue_response
*)op
->completed
;
961 struct queue_entry
*q
;
963 D(("playing_response_callback"));
964 if(c
->rc
/ 100 == 2) {
967 if(queue_unmarshall(q
= xmalloc(sizeof *q
), c
->line
+ 4,
969 completed(op
->v
, "cannot parse result", 0);
971 completed(op
->v
, 0, q
);
974 completed(op
->v
, 0, 0);
977 completed(op
->v
, errorstring(c
), 0);
981 completed(op
->v
, errorstring(c
), 0);
984 /* for commands that expect a list of some sort */
985 static void list_response_opcallback(disorder_eclient
*c
,
986 struct operation
*op
) {
987 disorder_eclient_list_response
*const completed
=
988 (disorder_eclient_list_response
*)op
->completed
;
990 D(("list_response_callback"));
992 completed(op
->v
, NULL
, c
->vec
.nvec
, c
->vec
.vec
);
994 completed(op
->v
, errorstring(c
), 0, 0);
998 static void volume_response_opcallback(disorder_eclient
*c
,
999 struct operation
*op
) {
1000 disorder_eclient_volume_response
*completed
1001 = (disorder_eclient_volume_response
*)op
->completed
;
1004 D(("volume_response_callback"));
1005 if(c
->rc
/ 100 == 2) {
1007 if(sscanf(c
->line
+ 4, "%d %d", &l
, &r
) != 2 || l
< 0 || r
< 0)
1008 completed(op
->v
, "cannot parse volume response", 0, 0);
1010 completed(op
->v
, 0, l
, r
);
1013 completed(op
->v
, errorstring(c
), 0, 0);
1016 static int simple(disorder_eclient
*c
,
1017 operation_callback
*opcallback
,
1018 void (*completed
)(),
1020 const char *cmd
, ...) {
1024 vstash_command(c
, 0/*queuejump*/, opcallback
, completed
, v
, cmd
, ap
);
1026 /* Give the state machine a kick, since we might be in state_idle */
1027 disorder_eclient_polled(c
, 0);
1031 /* Commands ******************************************************************/
1033 int disorder_eclient_version(disorder_eclient
*c
,
1034 disorder_eclient_string_response
*completed
,
1036 return simple(c
, string_response_opcallback
, (void (*)())completed
, v
,
1037 "version", (char *)0);
1040 int disorder_eclient_namepart(disorder_eclient
*c
,
1041 disorder_eclient_string_response
*completed
,
1043 const char *context
,
1046 return simple(c
, string_response_opcallback
, (void (*)())completed
, v
,
1047 "part", track
, context
, part
, (char *)0);
1050 int disorder_eclient_play(disorder_eclient
*c
,
1052 disorder_eclient_no_response
*completed
,
1054 return simple(c
, no_response_opcallback
, (void (*)())completed
, v
,
1055 "play", track
, (char *)0);
1058 int disorder_eclient_pause(disorder_eclient
*c
,
1059 disorder_eclient_no_response
*completed
,
1061 return simple(c
, no_response_opcallback
, (void (*)())completed
, v
,
1062 "pause", (char *)0);
1065 int disorder_eclient_resume(disorder_eclient
*c
,
1066 disorder_eclient_no_response
*completed
,
1068 return simple(c
, no_response_opcallback
, (void (*)())completed
, v
,
1069 "resume", (char *)0);
1072 int disorder_eclient_scratch(disorder_eclient
*c
,
1074 disorder_eclient_no_response
*completed
,
1076 return simple(c
, no_response_opcallback
, (void (*)())completed
, v
,
1077 "scratch", id
, (char *)0);
1080 int disorder_eclient_scratch_playing(disorder_eclient
*c
,
1081 disorder_eclient_no_response
*completed
,
1083 return disorder_eclient_scratch(c
, 0, completed
, v
);
1086 int disorder_eclient_remove(disorder_eclient
*c
,
1088 disorder_eclient_no_response
*completed
,
1090 return simple(c
, no_response_opcallback
, (void (*)())completed
, v
,
1091 "remove", id
, (char *)0);
1094 int disorder_eclient_moveafter(disorder_eclient
*c
,
1098 disorder_eclient_no_response
*completed
,
1104 vector_append(&vec
, (char *)"moveafter");
1105 vector_append(&vec
, (char *)target
);
1106 for(n
= 0; n
< nids
; ++n
)
1107 vector_append(&vec
, (char *)ids
[n
]);
1108 stash_command_vector(c
, 0/*queuejump*/, no_response_opcallback
, completed
, v
,
1110 disorder_eclient_polled(c
, 0);
1114 int disorder_eclient_recent(disorder_eclient
*c
,
1115 disorder_eclient_queue_response
*completed
,
1117 return simple(c
, queue_response_opcallback
, (void (*)())completed
, v
,
1118 "recent", (char *)0);
1121 int disorder_eclient_queue(disorder_eclient
*c
,
1122 disorder_eclient_queue_response
*completed
,
1124 return simple(c
, queue_response_opcallback
, (void (*)())completed
, v
,
1125 "queue", (char *)0);
1128 int disorder_eclient_files(disorder_eclient
*c
,
1129 disorder_eclient_list_response
*completed
,
1133 return simple(c
, list_response_opcallback
, (void (*)())completed
, v
,
1134 "files", dir
, re
, (char *)0);
1137 int disorder_eclient_dirs(disorder_eclient
*c
,
1138 disorder_eclient_list_response
*completed
,
1142 return simple(c
, list_response_opcallback
, (void (*)())completed
, v
,
1143 "dirs", dir
, re
, (char *)0);
1146 int disorder_eclient_playing(disorder_eclient
*c
,
1147 disorder_eclient_queue_response
*completed
,
1149 return simple(c
, playing_response_opcallback
, (void (*)())completed
, v
,
1150 "playing", (char *)0);
1153 int disorder_eclient_length(disorder_eclient
*c
,
1154 disorder_eclient_integer_response
*completed
,
1157 return simple(c
, integer_response_opcallback
, (void (*)())completed
, v
,
1158 "length", track
, (char *)0);
1161 int disorder_eclient_volume(disorder_eclient
*c
,
1162 disorder_eclient_volume_response
*completed
,
1165 char sl
[64], sr
[64];
1167 if(l
< 0 && r
< 0) {
1168 return simple(c
, volume_response_opcallback
, (void (*)())completed
, v
,
1169 "volume", (char *)0);
1170 } else if(l
>= 0 && r
>= 0) {
1173 byte_snprintf(sl
, sizeof sl
, "%d", l
);
1174 byte_snprintf(sr
, sizeof sr
, "%d", r
);
1175 return simple(c
, volume_response_opcallback
, (void (*)())completed
, v
,
1176 "volume", sl
, sr
, (char *)0);
1178 assert(!"invalid arguments to disorder_eclient_volume");
1179 return -1; /* gcc is being dim */
1183 int disorder_eclient_enable(disorder_eclient
*c
,
1184 disorder_eclient_no_response
*completed
,
1186 return simple(c
, no_response_opcallback
, (void (*)())completed
, v
,
1187 "enable", (char *)0);
1190 int disorder_eclient_disable(disorder_eclient
*c
,
1191 disorder_eclient_no_response
*completed
,
1193 return simple(c
, no_response_opcallback
, (void (*)())completed
, v
,
1194 "disable", (char *)0);
1197 int disorder_eclient_random_enable(disorder_eclient
*c
,
1198 disorder_eclient_no_response
*completed
,
1200 return simple(c
, no_response_opcallback
, (void (*)())completed
, v
,
1201 "random-enable", (char *)0);
1204 int disorder_eclient_random_disable(disorder_eclient
*c
,
1205 disorder_eclient_no_response
*completed
,
1207 return simple(c
, no_response_opcallback
, (void (*)())completed
, v
,
1208 "random-disable", (char *)0);
1211 int disorder_eclient_get(disorder_eclient
*c
,
1212 disorder_eclient_string_response
*completed
,
1213 const char *track
, const char *pref
,
1215 return simple(c
, string_response_opcallback
, (void (*)())completed
, v
,
1216 "get", track
, pref
, (char *)0);
1219 int disorder_eclient_set(disorder_eclient
*c
,
1220 disorder_eclient_no_response
*completed
,
1221 const char *track
, const char *pref
,
1224 return simple(c
, no_response_opcallback
, (void (*)())completed
, v
,
1225 "set", track
, pref
, value
, (char *)0);
1228 int disorder_eclient_unset(disorder_eclient
*c
,
1229 disorder_eclient_no_response
*completed
,
1230 const char *track
, const char *pref
,
1232 return simple(c
, no_response_opcallback
, (void (*)())completed
, v
,
1233 "unset", track
, pref
, (char *)0);
1236 int disorder_eclient_resolve(disorder_eclient
*c
,
1237 disorder_eclient_string_response
*completed
,
1240 return simple(c
, string_response_opcallback
, (void (*)())completed
, v
,
1241 "resolve", track
, (char *)0);
1244 int disorder_eclient_search(disorder_eclient
*c
,
1245 disorder_eclient_list_response
*completed
,
1248 if(!split(terms
, 0, SPLIT_QUOTES
, 0, 0)) return -1;
1249 return simple(c
, list_response_opcallback
, (void (*)())completed
, v
,
1250 "search", terms
, (char *)0);
1253 int disorder_eclient_nop(disorder_eclient
*c
,
1254 disorder_eclient_no_response
*completed
,
1256 return simple(c
, no_response_opcallback
, (void (*)())completed
, v
,
1260 /** @brief Get the last @p max added tracks
1262 * @param completed Called with list
1263 * @param max Number of tracks to get, 0 for all
1264 * @param v Passed to @p completed
1266 * The first track in the list is the most recently added.
1268 int disorder_eclient_new_tracks(disorder_eclient
*c
,
1269 disorder_eclient_list_response
*completed
,
1274 sprintf(limit
, "%d", max
);
1275 return simple(c
, list_response_opcallback
, (void (*)())completed
, v
,
1276 "new", limit
, (char *)0);
1279 static void rtp_response_opcallback(disorder_eclient
*c
,
1280 struct operation
*op
) {
1281 disorder_eclient_list_response
*const completed
=
1282 (disorder_eclient_list_response
*)op
->completed
;
1283 D(("rtp_response_opcallback"));
1284 if(c
->rc
/ 100 == 2) {
1286 char **vec
= split(c
->line
+ 4, &nvec
, SPLIT_QUOTES
, 0, 0);
1289 completed(op
->v
, NULL
, nvec
, vec
);
1291 completed(op
->v
, "error parsing response", 0, 0);
1293 completed(op
->v
, errorstring(c
), 0, 0);
1296 /** @brief Determine the RTP target address
1298 * @param completed Called with address details
1299 * @param v Passed to @p completed
1301 * The address details will be two elements, the first being the hostname and
1302 * the second the service (port).
1304 int disorder_eclient_rtp_address(disorder_eclient
*c
,
1305 disorder_eclient_list_response
*completed
,
1307 return simple(c
, rtp_response_opcallback
, (void (*)())completed
, v
,
1308 "rtp-address", (char *)0);
1311 /** @brief Get the list of users
1313 * @param completed Called with list of users
1314 * @param v Passed to @p completed
1316 * The user list is not sorted in any particular order.
1318 int disorder_eclient_users(disorder_eclient
*c
,
1319 disorder_eclient_list_response
*completed
,
1321 return simple(c
, list_response_opcallback
, (void (*)())completed
, v
,
1322 "users", (char *)0);
1325 /** @brief Delete a user
1327 * @param completed Called on completion
1328 * @param user User to delete
1329 * @param v Passed to @p completed
1331 int disorder_eclient_deluser(disorder_eclient
*c
,
1332 disorder_eclient_no_response
*completed
,
1335 return simple(c
, no_response_opcallback
, (void (*)())completed
, v
,
1336 "deluser", user
, (char *)0);
1339 /** @brief Get a user property
1341 * @param completed Called on completion
1342 * @param user User to look up
1343 * @param property Property to look up
1344 * @param v Passed to @p completed
1346 int disorder_eclient_userinfo(disorder_eclient
*c
,
1347 disorder_eclient_string_response
*completed
,
1349 const char *property
,
1351 return simple(c
, string_response_opcallback
, (void (*)())completed
, v
,
1352 "userinfo", user
, property
, (char *)0);
1355 /** @brief Modify a user property
1357 * @param completed Called on completion
1358 * @param user User to modify
1359 * @param property Property to modify
1360 * @param value New property value
1361 * @param v Passed to @p completed
1363 int disorder_eclient_edituser(disorder_eclient
*c
,
1364 disorder_eclient_no_response
*completed
,
1366 const char *property
,
1369 return simple(c
, no_response_opcallback
, (void (*)())completed
, v
,
1370 "edituser", user
, property
, value
, (char *)0);
1373 /** @brief Create a new user
1375 * @param completed Called on completion
1376 * @param user User to create
1377 * @param password Initial password
1378 * @param rights Initial rights or NULL
1379 * @param v Passed to @p completed
1381 int disorder_eclient_adduser(disorder_eclient
*c
,
1382 disorder_eclient_no_response
*completed
,
1384 const char *password
,
1387 return simple(c
, no_response_opcallback
, (void (*)())completed
, v
,
1388 "adduser", user
, password
, rights
, (char *)0);
1391 /* Log clients ***************************************************************/
1393 /** @brief Monitor the server log
1395 * @param callbacks Functions to call when anything happens
1396 * @param v Passed to @p callbacks functions
1398 * Once a client is being used for logging it cannot be used for anything else.
1399 * There is magic in authuser_opcallback() to re-submit the @c log command
1400 * after reconnection.
1402 * NB that the @c state callback may be called from within this function,
1403 * i.e. not solely later on from the event loop callback.
1405 int disorder_eclient_log(disorder_eclient
*c
,
1406 const disorder_eclient_log_callbacks
*callbacks
,
1408 if(c
->log_callbacks
) return -1;
1409 c
->log_callbacks
= callbacks
;
1411 /* Repoort initial state */
1412 if(c
->log_callbacks
->state
)
1413 c
->log_callbacks
->state(c
->log_v
, c
->statebits
);
1414 stash_command(c
, 0/*queuejump*/, log_opcallback
, 0/*completed*/, v
,
1416 disorder_eclient_polled(c
, 0);
1420 /* If we get here we've stopped being a log client */
1421 static void log_opcallback(disorder_eclient
*c
,
1422 struct operation
attribute((unused
)) *op
) {
1423 D(("log_opcallback"));
1424 c
->log_callbacks
= 0;
1428 /* error callback for log line parsing */
1429 static void logline_error(const char *msg
, void *u
) {
1430 disorder_eclient
*c
= u
;
1431 /* TODO don't use protocol_error here */
1432 protocol_error(c
, c
->ops
, -1, "error parsing log line: %s", msg
);
1435 /* process a single log line */
1436 static void logline(disorder_eclient
*c
, const char *line
) {
1441 D(("logline [%s]", line
));
1442 vec
= split(line
, &nvec
, SPLIT_QUOTES
, logline_error
, c
);
1443 if(nvec
< 2) return; /* probably an error, already
1445 if(sscanf(vec
[0], "%"SCNxMAX
, &when
) != 1) {
1446 /* probably the wrong side of a format change */
1447 /* TODO don't use protocol_error here */
1448 protocol_error(c
, c
->ops
, -1, "invalid log timestamp '%s'", vec
[0]);
1451 /* TODO: do something with the time */
1452 //fprintf(stderr, "log key: %s\n", vec[1]);
1453 n
= TABLE_FIND(logentry_handlers
, name
, vec
[1]);
1455 //fprintf(stderr, "...not found\n");
1456 return; /* probably a future command */
1460 if(nvec
< logentry_handlers
[n
].min
|| nvec
> logentry_handlers
[n
].max
) {
1461 //fprintf(stderr, "...wrong # args\n");
1464 logentry_handlers
[n
].handler(c
, nvec
, vec
);
1467 static void logentry_completed(disorder_eclient
*c
,
1468 int attribute((unused
)) nvec
, char **vec
) {
1469 c
->statebits
&= ~DISORDER_PLAYING
;
1470 if(c
->log_callbacks
->completed
)
1471 c
->log_callbacks
->completed(c
->log_v
, vec
[0]);
1472 if(c
->log_callbacks
->state
)
1473 c
->log_callbacks
->state(c
->log_v
, c
->statebits
| DISORDER_CONNECTED
);
1476 static void logentry_failed(disorder_eclient
*c
,
1477 int attribute((unused
)) nvec
, char **vec
) {
1478 c
->statebits
&= ~DISORDER_PLAYING
;
1479 if(c
->log_callbacks
->failed
)
1480 c
->log_callbacks
->failed(c
->log_v
, vec
[0], vec
[1]);
1481 if(c
->log_callbacks
->state
)
1482 c
->log_callbacks
->state(c
->log_v
, c
->statebits
| DISORDER_CONNECTED
);
1485 static void logentry_moved(disorder_eclient
*c
,
1486 int attribute((unused
)) nvec
, char **vec
) {
1487 if(c
->log_callbacks
->moved
)
1488 c
->log_callbacks
->moved(c
->log_v
, vec
[0]);
1491 static void logentry_playing(disorder_eclient
*c
,
1492 int attribute((unused
)) nvec
, char **vec
) {
1493 c
->statebits
|= DISORDER_PLAYING
;
1494 if(c
->log_callbacks
->playing
)
1495 c
->log_callbacks
->playing(c
->log_v
, vec
[0], vec
[1]);
1496 if(c
->log_callbacks
->state
)
1497 c
->log_callbacks
->state(c
->log_v
, c
->statebits
| DISORDER_CONNECTED
);
1500 static void logentry_queue(disorder_eclient
*c
,
1501 int attribute((unused
)) nvec
, char **vec
) {
1502 struct queue_entry
*q
;
1504 if(!c
->log_callbacks
->queue
) return;
1505 q
= xmalloc(sizeof *q
);
1506 if(queue_unmarshall_vec(q
, nvec
, vec
, eclient_queue_error
, c
))
1508 c
->log_callbacks
->queue(c
->log_v
, q
);
1511 static void logentry_recent_added(disorder_eclient
*c
,
1512 int attribute((unused
)) nvec
, char **vec
) {
1513 struct queue_entry
*q
;
1515 if(!c
->log_callbacks
->recent_added
) return;
1516 q
= xmalloc(sizeof *q
);
1517 if(queue_unmarshall_vec(q
, nvec
, vec
, eclient_queue_error
, c
))
1519 c
->log_callbacks
->recent_added(c
->log_v
, q
);
1522 static void logentry_recent_removed(disorder_eclient
*c
,
1523 int attribute((unused
)) nvec
, char **vec
) {
1524 if(c
->log_callbacks
->recent_removed
)
1525 c
->log_callbacks
->recent_removed(c
->log_v
, vec
[0]);
1528 static void logentry_removed(disorder_eclient
*c
,
1529 int attribute((unused
)) nvec
, char **vec
) {
1530 if(c
->log_callbacks
->removed
)
1531 c
->log_callbacks
->removed(c
->log_v
, vec
[0], vec
[1]);
1534 static void logentry_rescanned(disorder_eclient
*c
,
1535 int attribute((unused
)) nvec
,
1536 char attribute((unused
)) **vec
) {
1537 if(c
->log_callbacks
->rescanned
)
1538 c
->log_callbacks
->rescanned(c
->log_v
);
1541 static void logentry_scratched(disorder_eclient
*c
,
1542 int attribute((unused
)) nvec
, char **vec
) {
1543 c
->statebits
&= ~DISORDER_PLAYING
;
1544 if(c
->log_callbacks
->scratched
)
1545 c
->log_callbacks
->scratched(c
->log_v
, vec
[0], vec
[1]);
1546 if(c
->log_callbacks
->state
)
1547 c
->log_callbacks
->state(c
->log_v
, c
->statebits
| DISORDER_CONNECTED
);
1550 static void logentry_user_add(disorder_eclient
*c
,
1551 int attribute((unused
)) nvec
, char **vec
) {
1552 if(c
->log_callbacks
->user_add
)
1553 c
->log_callbacks
->user_add(c
->log_v
, vec
[0]);
1556 static void logentry_user_confirm(disorder_eclient
*c
,
1557 int attribute((unused
)) nvec
, char **vec
) {
1558 if(c
->log_callbacks
->user_confirm
)
1559 c
->log_callbacks
->user_confirm(c
->log_v
, vec
[0]);
1562 static void logentry_user_delete(disorder_eclient
*c
,
1563 int attribute((unused
)) nvec
, char **vec
) {
1564 if(c
->log_callbacks
->user_delete
)
1565 c
->log_callbacks
->user_delete(c
->log_v
, vec
[0]);
1568 static void logentry_user_edit(disorder_eclient
*c
,
1569 int attribute((unused
)) nvec
, char **vec
) {
1570 if(c
->log_callbacks
->user_edit
)
1571 c
->log_callbacks
->user_edit(c
->log_v
, vec
[0], vec
[1]);
1574 static void logentry_rights_changed(disorder_eclient
*c
,
1575 int attribute((unused
)) nvec
, char **vec
) {
1576 if(c
->log_callbacks
->rights_changed
) {
1578 if(!parse_rights(vec
[0], &r
, 0/*report*/))
1579 c
->log_callbacks
->rights_changed(c
->log_v
, r
);
1583 static const struct {
1586 const char *disable
;
1587 } statestrings
[] = {
1588 { DISORDER_PLAYING_ENABLED
, "enable_play", "disable_play" },
1589 { DISORDER_RANDOM_ENABLED
, "enable_random", "disable_random" },
1590 { DISORDER_TRACK_PAUSED
, "pause", "resume" },
1591 { DISORDER_PLAYING
, "playing", "completed" },
1592 { DISORDER_PLAYING
, 0, "scratched" },
1593 { DISORDER_PLAYING
, 0, "failed" },
1595 #define NSTATES (int)(sizeof statestrings / sizeof *statestrings)
1597 static void logentry_state(disorder_eclient
*c
,
1598 int attribute((unused
)) nvec
, char **vec
) {
1601 for(n
= 0; n
< NSTATES
; ++n
)
1602 if(statestrings
[n
].enable
&& !strcmp(vec
[0], statestrings
[n
].enable
)) {
1603 c
->statebits
|= statestrings
[n
].bit
;
1605 } else if(statestrings
[n
].disable
&& !strcmp(vec
[0], statestrings
[n
].disable
)) {
1606 c
->statebits
&= ~statestrings
[n
].bit
;
1609 if(c
->log_callbacks
->state
)
1610 c
->log_callbacks
->state(c
->log_v
, c
->statebits
| DISORDER_CONNECTED
);
1613 static void logentry_volume(disorder_eclient
*c
,
1614 int attribute((unused
)) nvec
, char **vec
) {
1617 if(!c
->log_callbacks
->volume
) return;
1618 if(xstrtol(&l
, vec
[0], 0, 10)
1619 || xstrtol(&r
, vec
[1], 0, 10)
1620 || l
< 0 || l
> INT_MAX
1621 || r
< 0 || r
> INT_MAX
)
1623 c
->log_callbacks
->volume(c
->log_v
, (int)l
, (int)r
);
1626 /** @brief Convert @p statebits to a string */
1627 char *disorder_eclient_interpret_state(unsigned long statebits
) {
1631 static const struct {
1635 { DISORDER_PLAYING_ENABLED
, "playing_enabled" },
1636 { DISORDER_RANDOM_ENABLED
, "random_enabled" },
1637 { DISORDER_TRACK_PAUSED
, "track_paused" },
1638 { DISORDER_PLAYING
, "playing" },
1639 { DISORDER_CONNECTED
, "connected" },
1641 #define NBITS (sizeof bits / sizeof *bits)
1645 dynstr_append(d
, '0');
1646 for(n
= 0; n
< NBITS
; ++n
)
1647 if(statebits
& bits
[n
].bit
) {
1649 dynstr_append(d
, '|');
1650 dynstr_append_string(d
, bits
[n
].name
);
1651 statebits
^= bits
[n
].bit
;
1657 dynstr_append(d
, '|');
1658 sprintf(s
, "%#lx", statebits
);
1659 dynstr_append_string(d
, s
);
1661 dynstr_terminate(d
);
1670 indent-tabs-mode:nil