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);
234 sll->s = xrealloc(sll->s, (sll->n * sizeof (struct stringlist)));
235 s = &sll->s[sll->n - 1];
237 s->s = xmalloc((nvec + 1) * sizeof (char *));
238 for(n = 0; n < nvec; ++n)
239 s->s[n] = xstrdup(vec[n]);
243 static int set_string_accum(const struct config_state *cs,
244 const struct conf *whoami,
245 int nvec, char **vec) {
247 struct stringlist *sl;
249 sl = ADDRESS(cs->config, struct stringlist);
254 for(n = 0; n < nvec; ++n) {
256 sl->s = xrealloc(sl->s, (sl->n * sizeof (char *)));
257 sl->s[sl->n - 1] = xstrdup(vec[n]);
262 static int set_restrict(const struct config_state *cs,
263 const struct conf *whoami,
264 int nvec, char **vec) {
268 static const struct restriction {
272 { "remove", RESTRICT_REMOVE },
273 { "scratch", RESTRICT_SCRATCH },
274 { "move", RESTRICT_MOVE },
277 for(n = 0; n < nvec; ++n) {
278 if((i = TABLE_FIND(restrictions, struct restriction, name, vec[n])) < 0) {
279 error(0, "%s:%d: invalid restriction '%s'",
280 cs->path, cs->line, vec[n]);
283 r |= restrictions[i].bit;
285 VALUE(cs->config, unsigned) = r;
289 static int parse_sample_format(const struct config_state *cs,
290 struct stream_header *format,
291 int nvec, char **vec) {
296 error(0, "%s:%d: wrong number of arguments", cs->path, cs->line);
299 if(xstrtol(&t, p, &p, 0)) {
300 error(errno, "%s:%d: converting bits-per-sample", cs->path, cs->line);
303 if(t != 8 && t != 16) {
304 error(0, "%s:%d: bad bite-per-sample (%ld)", cs->path, cs->line, t);
307 if(format) format->bits = t;
309 case 'l': case 'L': t = ENDIAN_LITTLE; p++; break;
310 case 'b': case 'B': t = ENDIAN_BIG; p++; break;
311 default: t = ENDIAN_NATIVE; break;
313 if(format) format->endian = t;
315 error(errno, "%s:%d: expected `/' after bits-per-sample",
320 if(xstrtol(&t, p, &p, 0)) {
321 error(errno, "%s:%d: converting sample-rate", cs->path, cs->line);
324 if(t < 1 || t > INT_MAX) {
325 error(0, "%s:%d: silly sample-rate (%ld)", cs->path, cs->line, t);
328 if(format) format->rate = t;
330 error(0, "%s:%d: expected `/' after sample-rate",
335 if(xstrtol(&t, p, &p, 0)) {
336 error(errno, "%s:%d: converting channels", cs->path, cs->line);
340 error(0, "%s:%d: silly number (%ld) of channels", cs->path, cs->line, t);
343 if(format) format->channels = t;
345 error(0, "%s:%d: junk after channels", cs->path, cs->line);
351 static int set_sample_format(const struct config_state *cs,
352 const struct conf *whoami,
353 int nvec, char **vec) {
354 return parse_sample_format(cs, ADDRESS(cs->config, struct stream_header),
358 static int set_namepart(const struct config_state *cs,
359 const struct conf *whoami,
360 int nvec, char **vec) {
361 struct namepartlist *npl = ADDRESS(cs->config, struct namepartlist);
368 error(0, "%s:%d: namepart needs at least 3 arguments", cs->path, cs->line);
372 error(0, "%s:%d: namepart needs at most 5 arguments", cs->path, cs->line);
375 reflags = nvec >= 5 ? regsub_flags(vec[4]) : 0;
376 if(!(re = pcre_compile(vec[1],
378 |regsub_compile_options(reflags),
379 &errstr, &erroffset, 0))) {
380 error(0, "%s:%d: error compiling regexp /%s/: %s (offset %d)",
381 cs->path, cs->line, vec[1], errstr, erroffset);
384 npl->s = xrealloc(npl->s, (npl->n + 1) * sizeof (struct namepart));
385 npl->s[npl->n].part = xstrdup(vec[0]);
386 npl->s[npl->n].re = re;
387 npl->s[npl->n].replace = xstrdup(vec[2]);
388 npl->s[npl->n].context = xstrdup(vec[3]);
389 npl->s[npl->n].reflags = reflags;
391 /* XXX a bit of a bodge; relies on there being very few parts. */
392 for(n = 0; (n < cs->config->nparts
393 && strcmp(cs->config->parts[n], vec[0])); ++n)
395 if(n >= cs->config->nparts) {
396 cs->config->parts = xrealloc(cs->config->parts,
397 (cs->config->nparts + 1) * sizeof (char *));
398 cs->config->parts[cs->config->nparts++] = xstrdup(vec[0]);
403 static int set_transform(const struct config_state *cs,
404 const struct conf *whoami,
405 int nvec, char **vec) {
406 struct transformlist *tl = ADDRESS(cs->config, struct transformlist);
413 error(0, "%s:%d: transform needs at least 3 arguments", cs->path, cs->line);
417 error(0, "%s:%d: transform needs at most 5 arguments", cs->path, cs->line);
420 reflags = (nvec >= 5 ? regsub_flags(vec[4]) : 0);
421 if(!(re = pcre_compile(vec[1],
423 |regsub_compile_options(reflags),
424 &errstr, &erroffset, 0))) {
425 error(0, "%s:%d: error compiling regexp /%s/: %s (offset %d)",
426 cs->path, cs->line, vec[1], errstr, erroffset);
429 tl->t = xrealloc(tl->t, (tl->n + 1) * sizeof (struct namepart));
430 tl->t[tl->n].type = xstrdup(vec[0]);
431 tl->t[tl->n].context = xstrdup(vec[3] ? vec[3] : "*");
432 tl->t[tl->n].re = re;
433 tl->t[tl->n].replace = xstrdup(vec[2]);
434 tl->t[tl->n].flags = reflags;
439 static int set_backend(const struct config_state *cs,
440 const struct conf *whoami,
441 int nvec, char **vec) {
442 int *const valuep = ADDRESS(cs->config, int);
445 error(0, "%s:%d: '%s' requires one argument",
446 cs->path, cs->line, whoami->name);
449 if(!strcmp(vec[0], "alsa")) {
450 #if HAVE_ALSA_ASOUNDLIB_H
451 *valuep = BACKEND_ALSA;
453 error(0, "%s:%d: ALSA is not available on this platform",
457 } else if(!strcmp(vec[0], "command"))
458 *valuep = BACKEND_COMMAND;
459 else if(!strcmp(vec[0], "network"))
460 *valuep = BACKEND_NETWORK;
461 else if(!strcmp(vec[0], "coreaudio")) {
462 #if HAVE_COREAUDIO_AUDIOHARDWARE_H
463 *valuep = BACKEND_COREAUDIO;
465 error(0, "%s:%d: Core Audio is not available on this platform",
469 } else if(!strcmp(vec[0], "oss")) {
470 #if HAVE_SYS_SOUNDCARD_H
471 *valuep = BACKEND_OSS;
473 error(0, "%s:%d: OSS is not available on this platform",
478 error(0, "%s:%d: invalid '%s' value '%s'",
479 cs->path, cs->line, whoami->name, vec[0]);
487 static void free_none(struct config attribute((unused)) *c,
488 const struct conf attribute((unused)) *whoami) {
491 static void free_string(struct config *c,
492 const struct conf *whoami) {
493 xfree(VALUE(c, char *));
496 static void free_stringlist(struct config *c,
497 const struct conf *whoami) {
499 struct stringlist *sl = ADDRESS(c, struct stringlist);
501 for(n = 0; n < sl->n; ++n)
506 static void free_stringlistlist(struct config *c,
507 const struct conf *whoami) {
509 struct stringlistlist *sll = ADDRESS(c, struct stringlistlist);
510 struct stringlist *sl;
512 for(n = 0; n < sll->n; ++n) {
514 for(m = 0; m < sl->n; ++m)
521 static void free_collectionlist(struct config *c,
522 const struct conf *whoami) {
523 struct collectionlist *cll = ADDRESS(c, struct collectionlist);
524 struct collection *cl;
527 for(n = 0; n < cll->n; ++n) {
536 static void free_namepartlist(struct config *c,
537 const struct conf *whoami) {
538 struct namepartlist *npl = ADDRESS(c, struct namepartlist);
542 for(n = 0; n < npl->n; ++n) {
545 pcre_free(np->re); /* ...whatever pcre_free is set to. */
552 static void free_transformlist(struct config *c,
553 const struct conf *whoami) {
554 struct transformlist *tl = ADDRESS(c, struct transformlist);
558 for(n = 0; n < tl->n; ++n) {
561 pcre_free(t->re); /* ...whatever pcre_free is set to. */
568 /* configuration types */
570 static const struct conftype
571 type_signal = { set_signal, free_none },
572 type_collections = { set_collections, free_collectionlist },
573 type_boolean = { set_boolean, free_none },
574 type_string = { set_string, free_string },
575 type_stringlist = { set_stringlist, free_stringlist },
576 type_integer = { set_integer, free_none },
577 type_stringlist_accum = { set_stringlist_accum, free_stringlistlist },
578 type_string_accum = { set_string_accum, free_stringlist },
579 type_sample_format = { set_sample_format, free_none },
580 type_restrict = { set_restrict, free_none },
581 type_namepart = { set_namepart, free_namepartlist },
582 type_transform = { set_transform, free_transformlist },
583 type_backend = { set_backend, free_none };
585 /* specific validation routine */
587 #define VALIDATE_FILE(test, what) do { \
591 for(n = 0; n < nvec; ++n) { \
592 if(stat(vec[n], &sb) < 0) { \
593 error(errno, "%s:%d: %s", cs->path, cs->line, vec[n]); \
596 if(!test(sb.st_mode)) { \
597 error(0, "%s:%d: %s is not a %s", \
598 cs->path, cs->line, vec[n], what); \
604 static int validate_isabspath(const struct config_state *cs,
605 int nvec, char **vec) {
608 for(n = 0; n < nvec; ++n)
609 if(vec[n][0] != '/') {
610 error(errno, "%s:%d: %s: not an absolute path",
611 cs->path, cs->line, vec[n]);
617 static int validate_isdir(const struct config_state *cs,
618 int nvec, char **vec) {
619 VALIDATE_FILE(S_ISDIR, "directory");
623 static int validate_isreg(const struct config_state *cs,
624 int nvec, char **vec) {
625 VALIDATE_FILE(S_ISREG, "regular file");
629 static int validate_ischr(const struct config_state *cs,
630 int nvec, char **vec) {
631 VALIDATE_FILE(S_ISCHR, "character device");
635 static int validate_player(const struct config_state *cs,
637 char attribute((unused)) **vec) {
639 error(0, "%s:%d: should be at least 'player PATTERN MODULE'",
646 static int validate_tracklength(const struct config_state *cs,
648 char attribute((unused)) **vec) {
650 error(0, "%s:%d: should be at least 'tracklength PATTERN MODULE'",
657 static int validate_allow(const struct config_state *cs,
659 char attribute((unused)) **vec) {
661 error(0, "%s:%d: must be 'allow NAME PASS'", cs->path, cs->line);
667 static int validate_non_negative(const struct config_state *cs,
668 int nvec, char **vec) {
672 error(0, "%s:%d: missing argument", cs->path, cs->line);
676 error(0, "%s:%d: too many arguments", cs->path, cs->line);
679 if(xstrtol(&n, vec[0], 0, 0)) {
680 error(0, "%s:%d: %s", cs->path, cs->line, strerror(errno));
684 error(0, "%s:%d: must not be negative", cs->path, cs->line);
690 static int validate_positive(const struct config_state *cs,
691 int nvec, char **vec) {
695 error(0, "%s:%d: missing argument", cs->path, cs->line);
699 error(0, "%s:%d: too many arguments", cs->path, cs->line);
702 if(xstrtol(&n, vec[0], 0, 0)) {
703 error(0, "%s:%d: %s", cs->path, cs->line, strerror(errno));
707 error(0, "%s:%d: must be positive", cs->path, cs->line);
713 static int validate_isauser(const struct config_state *cs,
714 int attribute((unused)) nvec,
718 if(!(pw = getpwnam(vec[0]))) {
719 error(0, "%s:%d: no such user as '%s'", cs->path, cs->line, vec[0]);
725 static int validate_sample_format(const struct config_state *cs,
726 int attribute((unused)) nvec,
728 return parse_sample_format(cs, 0, nvec, vec);
731 static int validate_channel(const struct config_state *cs,
732 int attribute((unused)) nvec,
734 if(mixer_channel(vec[0]) == -1) {
735 error(0, "%s:%d: invalid channel '%s'", cs->path, cs->line, vec[0]);
741 static int validate_any(const struct config_state attribute((unused)) *cs,
742 int attribute((unused)) nvec,
743 char attribute((unused)) **vec) {
747 static int validate_url(const struct config_state attribute((unused)) *cs,
748 int attribute((unused)) nvec,
752 /* absoluteURI = scheme ":" ( hier_part | opaque_part )
753 scheme = alpha *( alpha | digit | "+" | "-" | "." ) */
755 n = strspn(s, ("abcdefghijklmnopqrstuvwxyz"
756 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
759 error(0, "%s:%d: invalid url '%s'", cs->path, cs->line, vec[0]);
762 if(!strncmp(s, "http:", 5)
763 || !strncmp(s, "https:", 6)) {
765 /* we only do a rather cursory check */
766 if(strncmp(s, "//", 2)) {
767 error(0, "%s:%d: invalid url '%s'", cs->path, cs->line, vec[0]);
774 static int validate_alias(const struct config_state *cs,
778 int in_brackets = 0, c;
781 error(0, "%s:%d: missing argument", cs->path, cs->line);
785 error(0, "%s:%d: too many arguments", cs->path, cs->line);
789 while((c = (unsigned char)*s++)) {
793 else if(!isalnum(c)) {
794 error(0, "%s:%d: invalid part name in alias expansion in '%s'",
795 cs->path, cs->line, vec[0]);
803 } else if(c == '\\') {
804 if(!(c = (unsigned char)*s++)) {
805 error(0, "%s:%d: unterminated escape in alias expansion in '%s'",
806 cs->path, cs->line, vec[0]);
808 } else if(c != '\\' && c != '{') {
809 error(0, "%s:%d: invalid escape in alias expansion in '%s'",
810 cs->path, cs->line, vec[0]);
818 error(0, "%s:%d: unterminated part name in alias expansion in '%s'",
819 cs->path, cs->line, vec[0]);
825 static int validate_addrport(const struct config_state attribute((unused)) *cs,
827 char attribute((unused)) **vec) {
830 error(0, "%s:%d: missing address",
834 error(0, "%s:%d: missing port name/number",
840 error(0, "%s:%d: expected ADDRESS PORT",
846 static int validate_port(const struct config_state attribute((unused)) *cs,
848 char attribute((unused)) **vec) {
851 error(0, "%s:%d: missing address",
858 error(0, "%s:%d: expected [ADDRESS] PORT",
864 static int validate_algo(const struct config_state attribute((unused)) *cs,
868 error(0, "%s:%d: invalid algorithm specification", cs->path, cs->line);
871 if(!valid_authhash(vec[0])) {
872 error(0, "%s:%d: unsuported algorithm '%s'", cs->path, cs->line, vec[0]);
878 /** @brief Item name and and offset */
879 #define C(x) #x, offsetof(struct config, x)
880 /** @brief Item name and and offset */
881 #define C2(x,y) #x, offsetof(struct config, y)
883 /** @brief All configuration items */
884 static const struct conf conf[] = {
885 { C(alias), &type_string, validate_alias },
886 { C(allow), &type_stringlist_accum, validate_allow },
887 { C(authorization_algorithm), &type_string, validate_algo },
888 { C(broadcast), &type_stringlist, validate_addrport },
889 { C(broadcast_from), &type_stringlist, validate_addrport },
890 { C(channel), &type_string, validate_channel },
891 { C(checkpoint_kbyte), &type_integer, validate_non_negative },
892 { C(checkpoint_min), &type_integer, validate_non_negative },
893 { C(collection), &type_collections, validate_any },
894 { C(connect), &type_stringlist, validate_addrport },
895 { C(dbversion), &type_integer, validate_positive },
896 { C(device), &type_string, validate_any },
897 { C(gap), &type_integer, validate_non_negative },
898 { C(history), &type_integer, validate_positive },
899 { C(home), &type_string, validate_isabspath },
900 { C(listen), &type_stringlist, validate_port },
901 { C(lock), &type_boolean, validate_any },
902 { C(mixer), &type_string, validate_ischr },
903 { C(multicast_loop), &type_boolean, validate_any },
904 { C(multicast_ttl), &type_integer, validate_non_negative },
905 { C(namepart), &type_namepart, validate_any },
906 { C2(nice, nice_rescan), &type_integer, validate_non_negative },
907 { C(nice_rescan), &type_integer, validate_non_negative },
908 { C(nice_server), &type_integer, validate_any },
909 { C(nice_speaker), &type_integer, validate_any },
910 { C(noticed_history), &type_integer, validate_positive },
911 { C(password), &type_string, validate_any },
912 { C(player), &type_stringlist_accum, validate_player },
913 { C(plugins), &type_string_accum, validate_isdir },
914 { C(prefsync), &type_integer, validate_positive },
915 { C(queue_pad), &type_integer, validate_positive },
916 { C(refresh), &type_integer, validate_positive },
917 { C2(restrict, restrictions), &type_restrict, validate_any },
918 { C(sample_format), &type_sample_format, validate_sample_format },
919 { C(scratch), &type_string_accum, validate_isreg },
920 { C(short_display), &type_integer, validate_positive },
921 { C(signal), &type_signal, validate_any },
922 { C(sox_generation), &type_integer, validate_non_negative },
923 { C(speaker_backend), &type_backend, validate_any },
924 { C(speaker_command), &type_string, validate_any },
925 { C(stopword), &type_string_accum, validate_any },
926 { C(templates), &type_string_accum, validate_isdir },
927 { C(tracklength), &type_stringlist_accum, validate_tracklength },
928 { C(transform), &type_transform, validate_any },
929 { C(trust), &type_string_accum, validate_any },
930 { C(url), &type_string, validate_url },
931 { C(user), &type_string, validate_isauser },
932 { C(username), &type_string, validate_any },
935 /** @brief Find a configuration item's definition by key */
936 static const struct conf *find(const char *key) {
939 if((n = TABLE_FIND(conf, struct conf, name, key)) < 0)
944 /** @brief Set a new configuration value */
945 static int config_set(const struct config_state *cs,
946 int nvec, char **vec) {
947 const struct conf *which;
949 D(("config_set %s", vec[0]));
950 if(!(which = find(vec[0]))) {
951 error(0, "%s:%d: unknown configuration key '%s'",
952 cs->path, cs->line, vec[0]);
955 return (which->validate(cs, nvec - 1, vec + 1)
956 || which->type->set(cs, which, nvec - 1, vec + 1));
959 /** @brief Error callback used by config_include() */
960 static void config_error(const char *msg, void *u) {
961 const struct config_state *cs = u;
963 error(0, "%s:%d: %s", cs->path, cs->line, msg);
966 /** @brief Include a file by name */
967 static int config_include(struct config *c, const char *path) {
969 char *buffer, *inputbuffer, **vec;
971 struct config_state cs;
976 D(("%s: reading configuration", path));
977 if(!(fp = fopen(path, "r"))) {
978 error(errno, "error opening %s", path);
981 while(!inputline(path, fp, &inputbuffer, '\n')) {
983 if(!(buffer = mb2utf8(inputbuffer))) {
984 error(errno, "%s:%d: cannot convert to UTF-8", cs.path, cs.line);
990 if(!(vec = split(buffer, &n, SPLIT_COMMENTS|SPLIT_QUOTES,
991 config_error, &cs))) {
997 if(!strcmp(vec[0], "include")) {
999 error(0, "%s:%d: must be 'include PATH'", cs.path, cs.line);
1002 config_include(c, vec[1]);
1004 ret |= config_set(&cs, n, vec);
1006 for(n = 0; vec[n]; ++n) xfree(vec[n]);
1011 error(errno, "error reading %s", path);
1018 /** @brief Make a new default configuration */
1019 static struct config *config_default(void) {
1020 struct config *c = xmalloc(sizeof *c);
1021 const char *logname;
1024 /* Strings had better be xstrdup'd as they will get freed at some point. */
1027 c->home = xstrdup(pkgstatedir);
1028 if(!(pw = getpwuid(getuid())))
1029 fatal(0, "cannot determine our username");
1030 logname = pw->pw_name;
1031 c->username = xstrdup(logname);
1034 c->signal = SIGKILL;
1035 c->alias = xstrdup("{/artist}{/album}{/title}{ext}");
1037 c->device = xstrdup("default");
1038 c->nice_rescan = 10;
1039 c->speaker_command = 0;
1040 c->sample_format.bits = 16;
1041 c->sample_format.rate = 44100;
1042 c->sample_format.channels = 2;
1043 c->sample_format.endian = ENDIAN_NATIVE;
1045 c->speaker_backend = -1;
1046 c->multicast_ttl = 1;
1047 c->multicast_loop = 1;
1048 c->authorization_algorithm = xstrdup("sha1");
1049 c->noticed_history = 31;
1050 c->short_display = 32;
1051 c->mixer = xstrdup("/dev/mixer");
1052 c->channel = xstrdup("pcm");
1057 static char *get_file(struct config *c, const char *name) {
1060 byte_xasprintf(&s, "%s/%s", c->home, name);
1064 /** @brief Set the default configuration file */
1065 static void set_configfile(void) {
1067 byte_xasprintf(&configfile, "%s/config", pkgconfdir);
1070 /** @brief Free a configuration object */
1071 static void config_free(struct config *c) {
1075 for(n = 0; n < (int)(sizeof conf / sizeof *conf); ++n)
1076 conf[n].type->free(c, &conf[n]);
1077 for(n = 0; n < c->nparts; ++n)
1084 /** @brief Set post-parse defaults */
1085 static void config_postdefaults(struct config *c,
1087 struct config_state cs;
1088 const struct conf *whoami;
1091 static const char *namepart[][4] = {
1092 { "title", "/([0-9]+ *[-:] *)?([^/]+)\\.[a-zA-Z0-9]+$", "$2", "display" },
1093 { "title", "/([^/]+)\\.[a-zA-Z0-9]+$", "$1", "sort" },
1094 { "album", "/([^/]+)/[^/]+$", "$1", "*" },
1095 { "artist", "/([^/]+)/[^/]+/[^/]+$", "$1", "*" },
1096 { "ext", "(\\.[a-zA-Z0-9]+)$", "$1", "*" },
1098 #define NNAMEPART (int)(sizeof namepart / sizeof *namepart)
1100 static const char *transform[][5] = {
1101 { "track", "^.*/([0-9]+ *[-:] *)?([^/]+)\\.[a-zA-Z0-9]+$", "$2", "display", "" },
1102 { "track", "^.*/([^/]+)\\.[a-zA-Z0-9]+$", "$1", "sort", "" },
1103 { "dir", "^.*/([^/]+)$", "$1", "*", "" },
1104 { "dir", "^(the) ([^/]*)", "$2, $1", "sort", "i", },
1105 { "dir", "[[:punct:]]", "", "sort", "g", }
1107 #define NTRANSFORM (int)(sizeof transform / sizeof *transform)
1109 cs.path = "<internal>";
1112 if(!c->namepart.n) {
1113 whoami = find("namepart");
1114 for(n = 0; n < NNAMEPART; ++n)
1115 set_namepart(&cs, whoami, 4, (char **)namepart[n]);
1117 if(!c->transform.n) {
1118 whoami = find("transform");
1119 for(n = 0; n < NTRANSFORM; ++n)
1120 set_transform(&cs, whoami, 5, (char **)transform[n]);
1122 if(c->speaker_backend == -1) {
1123 if(c->speaker_command)
1124 c->speaker_backend = BACKEND_COMMAND;
1125 else if(c->broadcast.n)
1126 c->speaker_backend = BACKEND_NETWORK;
1128 #if HAVE_ALSA_ASOUNDLIB_H
1129 c->speaker_backend = BACKEND_ALSA;
1130 #elif HAVE_SYS_SOUNDCARD_H
1131 c->speaker_backend = BACKEND_OSS;
1132 #elif HAVE_COREAUDIO_AUDIOHARDWARE_H
1133 c->speaker_backend = BACKEND_COREAUDIO;
1135 c->speaker_backend = BACKEND_COMMAND;
1140 if(c->speaker_backend == BACKEND_COMMAND && !c->speaker_command)
1141 fatal(0, "speaker_backend is command but speaker_command is not set");
1142 if(c->speaker_backend == BACKEND_NETWORK && !c->broadcast.n)
1143 fatal(0, "speaker_backend is network but broadcast is not set");
1145 /* Override sample format */
1146 switch(c->speaker_backend) {
1147 case BACKEND_NETWORK:
1148 c->sample_format.rate = 44100;
1149 c->sample_format.channels = 2;
1150 c->sample_format.bits = 16;
1151 c->sample_format.endian = ENDIAN_BIG;
1153 case BACKEND_COREAUDIO:
1154 c->sample_format.rate = 44100;
1155 c->sample_format.channels = 2;
1156 c->sample_format.bits = 16;
1157 c->sample_format.endian = ENDIAN_NATIVE;
1162 /** @brief (Re-)read the config file
1163 * @param server If set, do extra checking
1165 int config_read(int server) {
1171 c = config_default();
1172 /* standalone Disobedience installs might not have a global config file */
1173 if(access(configfile, F_OK) == 0)
1174 if(config_include(c, configfile))
1176 /* if we can read the private config file, do */
1177 if((privconf = config_private())
1178 && access(privconf, R_OK) == 0
1179 && config_include(c, privconf))
1182 /* if there's a per-user system config file for this user, read it */
1183 if(!(pw = getpwuid(getuid())))
1184 fatal(0, "cannot determine our username");
1185 if((privconf = config_usersysconf(pw))
1186 && access(privconf, F_OK) == 0
1187 && config_include(c, privconf))
1190 /* if we have a password file, read it */
1191 if((privconf = config_userconf(getenv("HOME"), pw))
1192 && access(privconf, F_OK) == 0
1193 && config_include(c, privconf))
1196 /* install default namepart and transform settings */
1197 config_postdefaults(c, server);
1198 /* everything is good so we shall use the new config */
1199 config_free(config);
1204 /** @brief Return the path to the private configuration file */
1205 char *config_private(void) {
1209 byte_xasprintf(&s, "%s.private", configfile);
1213 /** @brief Return the path to user's personal configuration file */
1214 char *config_userconf(const char *home, const struct passwd *pw) {
1217 if(!home && !pw && !(pw = getpwuid(getuid())))
1218 fatal(0, "cannot determine our username");
1219 byte_xasprintf(&s, "%s/.disorder/passwd", home ? home : pw->pw_dir);
1223 /** @brief Return the path to user-specific system configuration */
1224 char *config_usersysconf(const struct passwd *pw) {
1228 if(!strchr(pw->pw_name, '/')) {
1229 byte_xasprintf(&s, "%s.%s", configfile, pw->pw_name);
1235 char *config_get_file(const char *name) {
1236 return get_file(config, name);