2 * This file is part of DisOrder.
3 * Copyright (C) 2004, 2005, 2006, 2007 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/configuration.c
21 * @brief Configuration file support
31 #include <sys/types.h>
41 #include "configuration.h"
47 #include "inputline.h"
56 /** @brief Path to config file
58 * set_configfile() sets the deafult if it is null.
62 /** @brief Config file parser state */
64 /** @brief Filename */
66 /** @brief Line number */
68 /** @brief Configuration object under construction */
69 struct config
*config
;
72 /** @brief Current configuration */
73 struct config
*config
;
75 /** @brief One configuration item */
77 /** @brief Name as it appears in the config file */
79 /** @brief Offset in @ref config structure */
81 /** @brief Pointer to item type */
82 const struct conftype
*type
;
83 /** @brief Pointer to item-specific validation routine */
84 int (*validate
)(const struct config_state
*cs
,
85 int nvec
, char **vec
);
88 /** @brief Type of a configuration item */
90 /** @brief Pointer to function to set item */
91 int (*set
)(const struct config_state
*cs
,
92 const struct conf
*whoami
,
93 int nvec
, char **vec
);
94 /** @brief Pointer to function to free item */
95 void (*free
)(struct config
*c
, const struct conf
*whoami
);
98 /** @brief Compute the address of an item */
99 #define ADDRESS(C, TYPE) ((TYPE *)((char *)(C) + whoami->offset))
100 /** @brief Return the value of an item */
101 #define VALUE(C, TYPE) (*ADDRESS(C, TYPE))
103 static int set_signal(const struct config_state
*cs
,
104 const struct conf
*whoami
,
105 int nvec
, char **vec
) {
109 error(0, "%s:%d: '%s' requires one argument",
110 cs
->path
, cs
->line
, whoami
->name
);
113 if((n
= find_signal(vec
[0])) == -1) {
114 error(0, "%s:%d: unknown signal '%s'",
115 cs
->path
, cs
->line
, vec
[0]);
118 VALUE(cs
->config
, int) = n
;
122 static int set_collections(const struct config_state
*cs
,
123 const struct conf
*whoami
,
124 int nvec
, char **vec
) {
125 struct collectionlist
*cl
;
128 error(0, "%s:%d: '%s' requires three arguments",
129 cs
->path
, cs
->line
, whoami
->name
);
132 if(vec
[2][0] != '/') {
133 error(0, "%s:%d: collection root must start with '/'",
137 if(vec
[2][1] && vec
[2][strlen(vec
[2])-1] == '/') {
138 error(0, "%s:%d: collection root must not end with '/'",
142 cl
= ADDRESS(cs
->config
, struct collectionlist
);
144 cl
->s
= xrealloc(cl
->s
, cl
->n
* sizeof (struct collection
));
145 cl
->s
[cl
->n
- 1].module
= xstrdup(vec
[0]);
146 cl
->s
[cl
->n
- 1].encoding
= xstrdup(vec
[1]);
147 cl
->s
[cl
->n
- 1].root
= xstrdup(vec
[2]);
151 static int set_boolean(const struct config_state
*cs
,
152 const struct conf
*whoami
,
153 int nvec
, char **vec
) {
157 error(0, "%s:%d: '%s' takes only one argument",
158 cs
->path
, cs
->line
, whoami
->name
);
161 if(!strcmp(vec
[0], "yes")) state
= 1;
162 else if(!strcmp(vec
[0], "no")) state
= 0;
164 error(0, "%s:%d: argument to '%s' must be 'yes' or 'no'",
165 cs
->path
, cs
->line
, whoami
->name
);
168 VALUE(cs
->config
, int) = state
;
172 static int set_string(const struct config_state
*cs
,
173 const struct conf
*whoami
,
174 int nvec
, char **vec
) {
176 error(0, "%s:%d: '%s' takes only one argument",
177 cs
->path
, cs
->line
, whoami
->name
);
180 VALUE(cs
->config
, char *) = xstrdup(vec
[0]);
184 static int set_stringlist(const struct config_state
*cs
,
185 const struct conf
*whoami
,
186 int nvec
, char **vec
) {
188 struct stringlist
*sl
;
190 sl
= ADDRESS(cs
->config
, struct stringlist
);
192 for(n
= 0; n
< nvec
; ++n
) {
194 sl
->s
= xrealloc(sl
->s
, (sl
->n
* sizeof (char *)));
195 sl
->s
[sl
->n
- 1] = xstrdup(vec
[n
]);
200 static int set_integer(const struct config_state
*cs
,
201 const struct conf
*whoami
,
202 int nvec
, char **vec
) {
206 error(0, "%s:%d: '%s' takes only one argument",
207 cs
->path
, cs
->line
, whoami
->name
);
210 if(xstrtol(ADDRESS(cs
->config
, long), vec
[0], &e
, 0)) {
211 error(errno
, "%s:%d: converting integer", cs
->path
, cs
->line
);
215 error(0, "%s:%d: invalid integer syntax", cs
->path
, cs
->line
);
221 static int set_stringlist_accum(const struct config_state
*cs
,
222 const struct conf
*whoami
,
223 int nvec
, char **vec
) {
225 struct stringlist
*s
;
226 struct stringlistlist
*sll
;
228 sll
= ADDRESS(cs
->config
, struct stringlistlist
);
230 sll
->s
= xrealloc(sll
->s
, (sll
->n
* sizeof (struct stringlist
)));
231 s
= &sll
->s
[sll
->n
- 1];
233 s
->s
= xmalloc((nvec
+ 1) * sizeof (char *));
234 for(n
= 0; n
< nvec
; ++n
)
235 s
->s
[n
] = xstrdup(vec
[n
]);
239 static int set_string_accum(const struct config_state
*cs
,
240 const struct conf
*whoami
,
241 int nvec
, char **vec
) {
243 struct stringlist
*sl
;
245 sl
= ADDRESS(cs
->config
, struct stringlist
);
246 for(n
= 0; n
< nvec
; ++n
) {
248 sl
->s
= xrealloc(sl
->s
, (sl
->n
* sizeof (char *)));
249 sl
->s
[sl
->n
- 1] = xstrdup(vec
[n
]);
254 static int set_restrict(const struct config_state
*cs
,
255 const struct conf
*whoami
,
256 int nvec
, char **vec
) {
260 static const struct restriction
{
264 { "remove", RESTRICT_REMOVE
},
265 { "scratch", RESTRICT_SCRATCH
},
266 { "move", RESTRICT_MOVE
},
269 for(n
= 0; n
< nvec
; ++n
) {
270 if((i
= TABLE_FIND(restrictions
, struct restriction
, name
, vec
[n
])) < 0) {
271 error(0, "%s:%d: invalid restriction '%s'",
272 cs
->path
, cs
->line
, vec
[n
]);
275 r
|= restrictions
[i
].bit
;
277 VALUE(cs
->config
, unsigned) = r
;
281 static int parse_sample_format(const struct config_state
*cs
,
282 struct stream_header
*format
,
283 int nvec
, char **vec
) {
288 error(0, "%s:%d: wrong number of arguments", cs
->path
, cs
->line
);
291 if(xstrtol(&t
, p
, &p
, 0)) {
292 error(errno
, "%s:%d: converting bits-per-sample", cs
->path
, cs
->line
);
295 if(t
!= 8 && t
!= 16) {
296 error(0, "%s:%d: bad bite-per-sample (%ld)", cs
->path
, cs
->line
, t
);
299 if(format
) format
->bits
= t
;
301 case 'l': case 'L': t
= ENDIAN_LITTLE
; p
++; break;
302 case 'b': case 'B': t
= ENDIAN_BIG
; p
++; break;
303 default: t
= ENDIAN_NATIVE
; break;
305 if(format
) format
->endian
= t
;
307 error(errno
, "%s:%d: expected `/' after bits-per-sample",
312 if(xstrtol(&t
, p
, &p
, 0)) {
313 error(errno
, "%s:%d: converting sample-rate", cs
->path
, cs
->line
);
316 if(t
< 1 || t
> INT_MAX
) {
317 error(0, "%s:%d: silly sample-rate (%ld)", cs
->path
, cs
->line
, t
);
320 if(format
) format
->rate
= t
;
322 error(0, "%s:%d: expected `/' after sample-rate",
327 if(xstrtol(&t
, p
, &p
, 0)) {
328 error(errno
, "%s:%d: converting channels", cs
->path
, cs
->line
);
332 error(0, "%s:%d: silly number (%ld) of channels", cs
->path
, cs
->line
, t
);
335 if(format
) format
->channels
= t
;
337 error(0, "%s:%d: junk after channels", cs
->path
, cs
->line
);
343 static int set_sample_format(const struct config_state
*cs
,
344 const struct conf
*whoami
,
345 int nvec
, char **vec
) {
346 return parse_sample_format(cs
, ADDRESS(cs
->config
, struct stream_header
),
350 static int set_namepart(const struct config_state
*cs
,
351 const struct conf
*whoami
,
352 int nvec
, char **vec
) {
353 struct namepartlist
*npl
= ADDRESS(cs
->config
, struct namepartlist
);
360 error(0, "%s:%d: namepart needs at least 3 arguments", cs
->path
, cs
->line
);
364 error(0, "%s:%d: namepart needs at most 5 arguments", cs
->path
, cs
->line
);
367 reflags
= nvec
>= 5 ?
regsub_flags(vec
[4]) : 0;
368 if(!(re
= pcre_compile(vec
[1],
370 |regsub_compile_options(reflags
),
371 &errstr
, &erroffset
, 0))) {
372 error(0, "%s:%d: error compiling regexp /%s/: %s (offset %d)",
373 cs
->path
, cs
->line
, vec
[1], errstr
, erroffset
);
376 npl
->s
= xrealloc(npl
->s
, (npl
->n
+ 1) * sizeof (struct namepart
));
377 npl
->s
[npl
->n
].part
= xstrdup(vec
[0]);
378 npl
->s
[npl
->n
].re
= re
;
379 npl
->s
[npl
->n
].replace
= xstrdup(vec
[2]);
380 npl
->s
[npl
->n
].context
= xstrdup(vec
[3]);
381 npl
->s
[npl
->n
].reflags
= reflags
;
383 /* XXX a bit of a bodge; relies on there being very few parts. */
384 for(n
= 0; (n
< cs
->config
->nparts
385 && strcmp(cs
->config
->parts
[n
], vec
[0])); ++n
)
387 if(n
>= cs
->config
->nparts
) {
388 cs
->config
->parts
= xrealloc(cs
->config
->parts
,
389 (cs
->config
->nparts
+ 1) * sizeof (char *));
390 cs
->config
->parts
[cs
->config
->nparts
++] = xstrdup(vec
[0]);
395 static int set_transform(const struct config_state
*cs
,
396 const struct conf
*whoami
,
397 int nvec
, char **vec
) {
398 struct transformlist
*tl
= ADDRESS(cs
->config
, struct transformlist
);
405 error(0, "%s:%d: transform needs at least 3 arguments", cs
->path
, cs
->line
);
409 error(0, "%s:%d: transform needs at most 5 arguments", cs
->path
, cs
->line
);
412 reflags
= (nvec
>= 5 ?
regsub_flags(vec
[4]) : 0);
413 if(!(re
= pcre_compile(vec
[1],
415 |regsub_compile_options(reflags
),
416 &errstr
, &erroffset
, 0))) {
417 error(0, "%s:%d: error compiling regexp /%s/: %s (offset %d)",
418 cs
->path
, cs
->line
, vec
[1], errstr
, erroffset
);
421 tl
->t
= xrealloc(tl
->t
, (tl
->n
+ 1) * sizeof (struct namepart
));
422 tl
->t
[tl
->n
].type
= xstrdup(vec
[0]);
423 tl
->t
[tl
->n
].context
= xstrdup(vec
[3] ? vec
[3] : "*");
424 tl
->t
[tl
->n
].re
= re
;
425 tl
->t
[tl
->n
].replace
= xstrdup(vec
[2]);
426 tl
->t
[tl
->n
].flags
= reflags
;
431 static int set_backend(const struct config_state
*cs
,
432 const struct conf
*whoami
,
433 int nvec
, char **vec
) {
434 int *const valuep
= ADDRESS(cs
->config
, int);
437 error(0, "%s:%d: '%s' requires one argument",
438 cs
->path
, cs
->line
, whoami
->name
);
441 if(!strcmp(vec
[0], "alsa")) {
443 *valuep
= BACKEND_ALSA
;
445 error(0, "%s:%d: ALSA is not available on this platform",
449 } else if(!strcmp(vec
[0], "command"))
450 *valuep
= BACKEND_COMMAND
;
451 else if(!strcmp(vec
[0], "network"))
452 *valuep
= BACKEND_NETWORK
;
454 error(0, "%s:%d: invalid '%s' value '%s'",
455 cs
->path
, cs
->line
, whoami
->name
, vec
[0]);
463 static void free_none(struct config
attribute((unused
)) *c
,
464 const struct conf
attribute((unused
)) *whoami
) {
467 static void free_string(struct config
*c
,
468 const struct conf
*whoami
) {
469 xfree(VALUE(c
, char *));
472 static void free_stringlist(struct config
*c
,
473 const struct conf
*whoami
) {
475 struct stringlist
*sl
= ADDRESS(c
, struct stringlist
);
477 for(n
= 0; n
< sl
->n
; ++n
)
482 static void free_stringlistlist(struct config
*c
,
483 const struct conf
*whoami
) {
485 struct stringlistlist
*sll
= ADDRESS(c
, struct stringlistlist
);
486 struct stringlist
*sl
;
488 for(n
= 0; n
< sll
->n
; ++n
) {
490 for(m
= 0; m
< sl
->n
; ++m
)
497 static void free_collectionlist(struct config
*c
,
498 const struct conf
*whoami
) {
499 struct collectionlist
*cll
= ADDRESS(c
, struct collectionlist
);
500 struct collection
*cl
;
503 for(n
= 0; n
< cll
->n
; ++n
) {
512 static void free_namepartlist(struct config
*c
,
513 const struct conf
*whoami
) {
514 struct namepartlist
*npl
= ADDRESS(c
, struct namepartlist
);
518 for(n
= 0; n
< npl
->n
; ++n
) {
521 pcre_free(np
->re
); /* ...whatever pcre_free is set to. */
528 static void free_transformlist(struct config
*c
,
529 const struct conf
*whoami
) {
530 struct transformlist
*tl
= ADDRESS(c
, struct transformlist
);
534 for(n
= 0; n
< tl
->n
; ++n
) {
537 pcre_free(t
->re
); /* ...whatever pcre_free is set to. */
544 /* configuration types */
546 static const struct conftype
547 type_signal
= { set_signal
, free_none
},
548 type_collections
= { set_collections
, free_collectionlist
},
549 type_boolean
= { set_boolean
, free_none
},
550 type_string
= { set_string
, free_string
},
551 type_stringlist
= { set_stringlist
, free_stringlist
},
552 type_integer
= { set_integer
, free_none
},
553 type_stringlist_accum
= { set_stringlist_accum
, free_stringlistlist
},
554 type_string_accum
= { set_string_accum
, free_stringlist
},
555 type_sample_format
= { set_sample_format
, free_none
},
556 type_restrict
= { set_restrict
, free_none
},
557 type_namepart
= { set_namepart
, free_namepartlist
},
558 type_transform
= { set_transform
, free_transformlist
},
559 type_backend
= { set_backend
, free_none
};
561 /* specific validation routine */
563 #define VALIDATE_FILE(test, what) do { \
567 for(n = 0; n < nvec; ++n) { \
568 if(stat(vec[n], &sb) < 0) { \
569 error(errno, "%s:%d: %s", cs->path, cs->line, vec[n]); \
572 if(!test(sb.st_mode)) { \
573 error(0, "%s:%d: %s is not a %s", \
574 cs->path, cs->line, vec[n], what); \
580 static int validate_isdir(const struct config_state
*cs
,
581 int nvec
, char **vec
) {
582 VALIDATE_FILE(S_ISDIR
, "directory");
586 static int validate_isreg(const struct config_state
*cs
,
587 int nvec
, char **vec
) {
588 VALIDATE_FILE(S_ISREG
, "regular file");
592 static int validate_ischr(const struct config_state
*cs
,
593 int nvec
, char **vec
) {
594 VALIDATE_FILE(S_ISCHR
, "character device");
598 static int validate_player(const struct config_state
*cs
,
600 char attribute((unused
)) **vec
) {
602 error(0, "%s:%d: should be at least 'player PATTERN MODULE'",
609 static int validate_allow(const struct config_state
*cs
,
611 char attribute((unused
)) **vec
) {
613 error(0, "%s:%d: must be 'allow NAME PASS'", cs
->path
, cs
->line
);
619 static int validate_non_negative(const struct config_state
*cs
,
620 int nvec
, char **vec
) {
624 error(0, "%s:%d: missing argument", cs
->path
, cs
->line
);
628 error(0, "%s:%d: too many arguments", cs
->path
, cs
->line
);
631 if(xstrtol(&n
, vec
[0], 0, 0)) {
632 error(0, "%s:%d: %s", cs
->path
, cs
->line
, strerror(errno
));
636 error(0, "%s:%d: must not be negative", cs
->path
, cs
->line
);
642 static int validate_positive(const struct config_state
*cs
,
643 int nvec
, char **vec
) {
647 error(0, "%s:%d: missing argument", cs
->path
, cs
->line
);
651 error(0, "%s:%d: too many arguments", cs
->path
, cs
->line
);
654 if(xstrtol(&n
, vec
[0], 0, 0)) {
655 error(0, "%s:%d: %s", cs
->path
, cs
->line
, strerror(errno
));
659 error(0, "%s:%d: must be positive", cs
->path
, cs
->line
);
665 static int validate_isauser(const struct config_state
*cs
,
666 int attribute((unused
)) nvec
,
670 if(!(pw
= getpwnam(vec
[0]))) {
671 error(0, "%s:%d: no such user as '%s'", cs
->path
, cs
->line
, vec
[0]);
677 static int validate_sample_format(const struct config_state
*cs
,
678 int attribute((unused
)) nvec
,
680 return parse_sample_format(cs
, 0, nvec
, vec
);
683 static int validate_channel(const struct config_state
*cs
,
684 int attribute((unused
)) nvec
,
686 if(mixer_channel(vec
[0]) == -1) {
687 error(0, "%s:%d: invalid channel '%s'", cs
->path
, cs
->line
, vec
[0]);
693 static int validate_any(const struct config_state
attribute((unused
)) *cs
,
694 int attribute((unused
)) nvec
,
695 char attribute((unused
)) **vec
) {
699 static int validate_url(const struct config_state
attribute((unused
)) *cs
,
700 int attribute((unused
)) nvec
,
704 /* absoluteURI = scheme ":" ( hier_part | opaque_part )
705 scheme = alpha *( alpha | digit | "+" | "-" | "." ) */
707 n
= strspn(s
, ("abcdefghijklmnopqrstuvwxyz"
708 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
711 error(0, "%s:%d: invalid url '%s'", cs
->path
, cs
->line
, vec
[0]);
714 if(!strncmp(s
, "http:", 5)
715 || !strncmp(s
, "https:", 6)) {
717 /* we only do a rather cursory check */
718 if(strncmp(s
, "//", 2)) {
719 error(0, "%s:%d: invalid url '%s'", cs
->path
, cs
->line
, vec
[0]);
726 static int validate_alias(const struct config_state
*cs
,
730 int in_brackets
= 0, c
;
733 error(0, "%s:%d: missing argument", cs
->path
, cs
->line
);
737 error(0, "%s:%d: too many arguments", cs
->path
, cs
->line
);
741 while((c
= (unsigned char)*s
++)) {
745 else if(!isalnum(c
)) {
746 error(0, "%s:%d: invalid part name in alias expansion in '%s'",
747 cs
->path
, cs
->line
, vec
[0]);
755 } else if(c
== '\\') {
756 if(!(c
= (unsigned char)*s
++)) {
757 error(0, "%s:%d: unterminated escape in alias expansion in '%s'",
758 cs
->path
, cs
->line
, vec
[0]);
760 } else if(c
!= '\\' && c
!= '{') {
761 error(0, "%s:%d: invalid escape in alias expansion in '%s'",
762 cs
->path
, cs
->line
, vec
[0]);
770 error(0, "%s:%d: unterminated part name in alias expansion in '%s'",
771 cs
->path
, cs
->line
, vec
[0]);
777 static int validate_addrport(const struct config_state
attribute((unused
)) *cs
,
779 char attribute((unused
)) **vec
) {
782 error(0, "%s:%d: missing address",
786 error(0, "%s:%d: missing port name/number",
792 error(0, "%s:%d: expected ADDRESS PORT",
798 static int validate_port(const struct config_state
attribute((unused
)) *cs
,
800 char attribute((unused
)) **vec
) {
803 error(0, "%s:%d: missing address",
810 error(0, "%s:%d: expected [ADDRESS] PORT",
816 static int validate_algo(const struct config_state
attribute((unused
)) *cs
,
820 error(0, "%s:%d: invalid algorithm specification", cs
->path
, cs
->line
);
823 if(!valid_authhash(vec
[0])) {
824 error(0, "%s:%d: unsuported algorithm '%s'", cs
->path
, cs
->line
, vec
[0]);
830 /** @brief Item name and and offset */
831 #define C(x) #x, offsetof(struct config, x)
832 /** @brief Item name and and offset */
833 #define C2(x,y) #x, offsetof(struct config, y)
835 /** @brief All configuration items */
836 static const struct conf conf
[] = {
837 { C(alias
), &type_string
, validate_alias
},
838 { C(allow
), &type_stringlist_accum
, validate_allow
},
839 { C(authorization_algorithm
), &type_string
, validate_algo
},
840 { C(broadcast
), &type_stringlist
, validate_addrport
},
841 { C(broadcast_from
), &type_stringlist
, validate_addrport
},
842 { C(channel
), &type_string
, validate_channel
},
843 { C(checkpoint_kbyte
), &type_integer
, validate_non_negative
},
844 { C(checkpoint_min
), &type_integer
, validate_non_negative
},
845 { C(collection
), &type_collections
, validate_any
},
846 { C(connect
), &type_stringlist
, validate_addrport
},
847 { C(device
), &type_string
, validate_any
},
848 { C(gap
), &type_integer
, validate_non_negative
},
849 { C(history
), &type_integer
, validate_positive
},
850 { C(home
), &type_string
, validate_isdir
},
851 { C(listen
), &type_stringlist
, validate_port
},
852 { C(lock
), &type_boolean
, validate_any
},
853 { C(mixer
), &type_string
, validate_ischr
},
854 { C(multicast_ttl
), &type_integer
, validate_non_negative
},
855 { C(namepart
), &type_namepart
, validate_any
},
856 { C2(nice
, nice_rescan
), &type_integer
, validate_non_negative
},
857 { C(nice_rescan
), &type_integer
, validate_non_negative
},
858 { C(nice_server
), &type_integer
, validate_any
},
859 { C(nice_speaker
), &type_integer
, validate_any
},
860 { C(noticed_history
), &type_integer
, validate_positive
},
861 { C(password
), &type_string
, validate_any
},
862 { C(player
), &type_stringlist_accum
, validate_player
},
863 { C(plugins
), &type_string_accum
, validate_isdir
},
864 { C(prefsync
), &type_integer
, validate_positive
},
865 { C(queue_pad
), &type_integer
, validate_positive
},
866 { C(refresh
), &type_integer
, validate_positive
},
867 { C2(restrict
, restrictions
), &type_restrict
, validate_any
},
868 { C(sample_format
), &type_sample_format
, validate_sample_format
},
869 { C(scratch
), &type_string_accum
, validate_isreg
},
870 { C(signal
), &type_signal
, validate_any
},
871 { C(sox_generation
), &type_integer
, validate_non_negative
},
872 { C(speaker_backend
), &type_backend
, validate_any
},
873 { C(speaker_command
), &type_string
, validate_any
},
874 { C(stopword
), &type_string_accum
, validate_any
},
875 { C(templates
), &type_string_accum
, validate_isdir
},
876 { C(transform
), &type_transform
, validate_any
},
877 { C(trust
), &type_string_accum
, validate_any
},
878 { C(url
), &type_string
, validate_url
},
879 { C(user
), &type_string
, validate_isauser
},
880 { C(username
), &type_string
, validate_any
},
883 /** @brief Find a configuration item's definition by key */
884 static const struct conf
*find(const char *key
) {
887 if((n
= TABLE_FIND(conf
, struct conf
, name
, key
)) < 0)
892 /** @brief Set a new configuration value */
893 static int config_set(const struct config_state
*cs
,
894 int nvec
, char **vec
) {
895 const struct conf
*which
;
897 D(("config_set %s", vec
[0]));
898 if(!(which
= find(vec
[0]))) {
899 error(0, "%s:%d: unknown configuration key '%s'",
900 cs
->path
, cs
->line
, vec
[0]);
903 return (which
->validate(cs
, nvec
- 1, vec
+ 1)
904 || which
->type
->set(cs
, which
, nvec
- 1, vec
+ 1));
907 /** @brief Error callback used by config_include() */
908 static void config_error(const char *msg
, void *u
) {
909 const struct config_state
*cs
= u
;
911 error(0, "%s:%d: %s", cs
->path
, cs
->line
, msg
);
914 /** @brief Include a file by name */
915 static int config_include(struct config
*c
, const char *path
) {
917 char *buffer
, *inputbuffer
, **vec
;
919 struct config_state cs
;
924 D(("%s: reading configuration", path
));
925 if(!(fp
= fopen(path
, "r"))) {
926 error(errno
, "error opening %s", path
);
929 while(!inputline(path
, fp
, &inputbuffer
, '\n')) {
931 if(!(buffer
= mb2utf8(inputbuffer
))) {
932 error(errno
, "%s:%d: cannot convert to UTF-8", cs
.path
, cs
.line
);
938 if(!(vec
= split(buffer
, &n
, SPLIT_COMMENTS
|SPLIT_QUOTES
,
939 config_error
, &cs
))) {
945 if(!strcmp(vec
[0], "include")) {
947 error(0, "%s:%d: must be 'include PATH'", cs
.path
, cs
.line
);
950 config_include(c
, vec
[1]);
952 ret
|= config_set(&cs
, n
, vec
);
954 for(n
= 0; vec
[n
]; ++n
) xfree(vec
[n
]);
959 error(errno
, "error reading %s", path
);
966 /** @brief Make a new default configuration */
967 static struct config
*config_default(void) {
968 struct config
*c
= xmalloc(sizeof *c
);
972 /* Strings had better be xstrdup'd as they will get freed at some point. */
975 c
->home
= xstrdup(pkgstatedir
);
976 if(!(pw
= getpwuid(getuid())))
977 fatal(0, "cannot determine our username");
978 logname
= pw
->pw_name
;
979 c
->username
= xstrdup(logname
);
983 c
->alias
= xstrdup("{/artist}{/album}{/title}{ext}");
985 c
->device
= xstrdup("default");
987 c
->speaker_command
= 0;
988 c
->sample_format
.bits
= 16;
989 c
->sample_format
.rate
= 44100;
990 c
->sample_format
.channels
= 2;
991 c
->sample_format
.endian
= ENDIAN_NATIVE
;
993 c
->speaker_backend
= -1;
994 c
->multicast_ttl
= 1;
995 c
->authorization_algorithm
= xstrdup("sha1");
996 c
->noticed_history
= 31;
1000 static char *get_file(struct config
*c
, const char *name
) {
1003 byte_xasprintf(&s
, "%s/%s", c
->home
, name
);
1007 /** @brief Set the default configuration file */
1008 static void set_configfile(void) {
1010 byte_xasprintf(&configfile
, "%s/config", pkgconfdir
);
1013 /** @brief Free a configuration object */
1014 static void config_free(struct config
*c
) {
1018 for(n
= 0; n
< (int)(sizeof conf
/ sizeof *conf
); ++n
)
1019 conf
[n
].type
->free(c
, &conf
[n
]);
1020 for(n
= 0; n
< c
->nparts
; ++n
)
1027 /** @brief Set post-parse defaults */
1028 static void config_postdefaults(struct config
*c
,
1030 struct config_state cs
;
1031 const struct conf
*whoami
;
1034 static const char *namepart
[][4] = {
1035 { "title", "/([0-9]+ *[-:] *)?([^/]+)\\.[a-zA-Z0-9]+$", "$2", "display" },
1036 { "title", "/([^/]+)\\.[a-zA-Z0-9]+$", "$1", "sort" },
1037 { "album", "/([^/]+)/[^/]+$", "$1", "*" },
1038 { "artist", "/([^/]+)/[^/]+/[^/]+$", "$1", "*" },
1039 { "ext", "(\\.[a-zA-Z0-9]+)$", "$1", "*" },
1041 #define NNAMEPART (int)(sizeof namepart / sizeof *namepart)
1043 static const char *transform
[][5] = {
1044 { "track", "^.*/([0-9]+ *[-:] *)?([^/]+)\\.[a-zA-Z0-9]+$", "$2", "display", "" },
1045 { "track", "^.*/([^/]+)\\.[a-zA-Z0-9]+$", "$1", "sort", "" },
1046 { "dir", "^.*/([^/]+)$", "$1", "*", "" },
1047 { "dir", "^(the) ([^/]*)", "$2, $1", "sort", "i", },
1048 { "dir", "[[:punct:]]", "", "sort", "g", }
1050 #define NTRANSFORM (int)(sizeof transform / sizeof *transform)
1052 cs
.path
= "<internal>";
1055 if(!c
->namepart
.n
) {
1056 whoami
= find("namepart");
1057 for(n
= 0; n
< NNAMEPART
; ++n
)
1058 set_namepart(&cs
, whoami
, 4, (char **)namepart
[n
]);
1060 if(!c
->transform
.n
) {
1061 whoami
= find("transform");
1062 for(n
= 0; n
< NTRANSFORM
; ++n
)
1063 set_transform(&cs
, whoami
, 5, (char **)transform
[n
]);
1065 if(c
->speaker_backend
== -1) {
1066 if(c
->speaker_command
)
1067 c
->speaker_backend
= BACKEND_COMMAND
;
1068 else if(c
->broadcast
.n
)
1069 c
->speaker_backend
= BACKEND_NETWORK
;
1072 c
->speaker_backend
= BACKEND_ALSA
;
1074 c
->speaker_backend
= BACKEND_COMMAND
;
1079 if(c
->speaker_backend
== BACKEND_COMMAND
&& !c
->speaker_command
)
1080 fatal(0, "speaker_backend is command but speaker_command is not set");
1081 if(c
->speaker_backend
== BACKEND_NETWORK
&& !c
->broadcast
.n
)
1082 fatal(0, "speaker_backend is network but broadcast is not set");
1084 if(c
->speaker_backend
) {
1085 /* Override sample format */
1086 c
->sample_format
.rate
= 44100;
1087 c
->sample_format
.channels
= 2;
1088 c
->sample_format
.bits
= 16;
1089 c
->sample_format
.endian
= ENDIAN_BIG
;
1093 /** @brief (Re-)read the config file
1094 * @param server If set, do extra checking
1096 int config_read(int server
) {
1102 c
= config_default();
1103 /* standalone Disobedience installs might not have a global config file */
1104 if(access(configfile
, F_OK
) == 0)
1105 if(config_include(c
, configfile
))
1107 /* if we can read the private config file, do */
1108 if((privconf
= config_private())
1109 && access(privconf
, R_OK
) == 0
1110 && config_include(c
, privconf
))
1113 /* if there's a per-user system config file for this user, read it */
1114 if(!(pw
= getpwuid(getuid())))
1115 fatal(0, "cannot determine our username");
1116 if((privconf
= config_usersysconf(pw
))
1117 && access(privconf
, F_OK
) == 0
1118 && config_include(c
, privconf
))
1121 /* if we have a password file, read it */
1122 if((privconf
= config_userconf(getenv("HOME"), pw
))
1123 && access(privconf
, F_OK
) == 0
1124 && config_include(c
, privconf
))
1127 /* install default namepart and transform settings */
1128 config_postdefaults(c
, server
);
1129 /* everything is good so we shall use the new config */
1130 config_free(config
);
1135 /** @brief Return the path to the private configuration file */
1136 char *config_private(void) {
1140 byte_xasprintf(&s
, "%s.private", configfile
);
1144 /** @brief Return the path to user's personal configuration file */
1145 char *config_userconf(const char *home
, const struct passwd
*pw
) {
1148 byte_xasprintf(&s
, "%s/.disorder/passwd", home ? home
: pw
->pw_dir
);
1152 /** @brief Return the path to user-specific system configuration */
1153 char *config_usersysconf(const struct passwd
*pw
) {
1157 if(!strchr(pw
->pw_name
, '/')) {
1158 byte_xasprintf(&s
, "%s.%s", configfile
, pw
->pw_name
);
1164 char *config_get_file(const char *name
) {
1165 return get_file(config
, name
);