2 * This file is part of DisOrder.
3 * Copyright (C) 2004-2011, 2013 Richard Kettlewell
4 * Portions copyright (C) 2007 Mark Wooding
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 /** @file lib/configuration.c
20 * @brief Configuration file support
26 #include <sys/types.h>
37 # include <langinfo.h>
43 #include "configuration.h"
50 #include "inputline.h"
63 /** @brief Path to config file
65 * set_configfile() sets the default if it is null.
69 /** @brief Path to user's config file
71 * set_configfile() sets the default if it is null.
75 /** @brief Read user configuration
77 * If clear, the user-specific configuration is not read.
79 int config_per_user
= 1;
82 /** @brief Table of audio APIs
84 * Only set in server processes.
86 const struct uaudio
*const *config_uaudio_apis
;
89 /** @brief Config file parser state */
91 /** @brief Filename */
94 /** @brief Line number */
97 /** @brief Configuration object under construction */
98 struct config
*config
;
101 /** @brief Current configuration */
102 struct config
*config
;
104 /** @brief One configuration item */
106 /** @brief Name as it appears in the config file */
109 /** @brief Offset in @ref config structure */
112 /** @brief Pointer to item type */
113 const struct conftype
*type
;
115 /** @brief Pointer to item-specific validation routine
116 * @param cs Configuration state
117 * @param nvec Length of (proposed) new value
118 * @param vec Elements of new value
119 * @return 0 on success, non-0 on error
121 * The validate function should report any error it detects.
123 int (*validate
)(const struct config_state
*cs
,
124 int nvec
, char **vec
);
127 /** @brief Type of a configuration item */
129 /** @brief Pointer to function to set item
130 * @param cs Configuration state
131 * @param whoami Configuration item to set
132 * @param nvec Length of new value
133 * @param vec New value
134 * @return 0 on success, non-0 on error
136 int (*set
)(const struct config_state
*cs
,
137 const struct conf
*whoami
,
138 int nvec
, char **vec
);
140 /** @brief Pointer to function to free item
141 * @param c Configuration structure to free an item of
142 * @param whoami Configuration item to free
144 void (*free
)(struct config
*c
, const struct conf
*whoami
);
147 /** @brief Compute the address of an item */
148 #define ADDRESS(C, TYPE) ((TYPE *)((char *)(C) + whoami->offset))
149 /** @brief Return the value of an item */
150 #define VALUE(C, TYPE) (*ADDRESS(C, TYPE))
152 static int stringlist_compare(const struct stringlist
*a
,
153 const struct stringlist
*b
);
154 static int namepartlist_compare(const struct namepartlist
*a
,
155 const struct namepartlist
*b
);
157 static int set_signal(const struct config_state
*cs
,
158 const struct conf
*whoami
,
159 int nvec
, char **vec
) {
163 disorder_error(0, "%s:%d: '%s' requires one argument",
164 cs
->path
, cs
->line
, whoami
->name
);
167 if((n
= find_signal(vec
[0])) == -1) {
168 disorder_error(0, "%s:%d: unknown signal '%s'",
169 cs
->path
, cs
->line
, vec
[0]);
172 VALUE(cs
->config
, int) = n
;
176 static int set_collections(const struct config_state
*cs
,
177 const struct conf
*whoami
,
178 int nvec
, char **vec
) {
179 struct collectionlist
*cl
;
180 const char *root
, *encoding
, *module
;
199 disorder_error(0, "%s:%d: '%s' requires at least one argument",
200 cs
->path
, cs
->line
, whoami
->name
);
203 disorder_error(0, "%s:%d: '%s' requires at most three arguments",
204 cs
->path
, cs
->line
, whoami
->name
);
207 /* Sanity check root */
209 disorder_error(0, "%s:%d: collection root must start with '/'",
213 if(root
[1] && root
[strlen(root
)-1] == '/') {
214 disorder_error(0, "%s:%d: collection root must not end with '/'",
223 encoding
= nl_langinfo(CODESET
);
228 cl
= ADDRESS(cs
->config
, struct collectionlist
);
230 cl
->s
= xrealloc(cl
->s
, cl
->n
* sizeof (struct collection
));
231 cl
->s
[cl
->n
- 1].module
= xstrdup(module
);
232 cl
->s
[cl
->n
- 1].encoding
= xstrdup(encoding
);
233 cl
->s
[cl
->n
- 1].root
= xstrdup(root
);
237 static int set_boolean(const struct config_state
*cs
,
238 const struct conf
*whoami
,
239 int nvec
, char **vec
) {
243 disorder_error(0, "%s:%d: '%s' takes only one argument",
244 cs
->path
, cs
->line
, whoami
->name
);
247 if(!strcmp(vec
[0], "yes")) state
= 1;
248 else if(!strcmp(vec
[0], "no")) state
= 0;
250 disorder_error(0, "%s:%d: argument to '%s' must be 'yes' or 'no'",
251 cs
->path
, cs
->line
, whoami
->name
);
254 VALUE(cs
->config
, int) = state
;
258 static int set_string(const struct config_state
*cs
,
259 const struct conf
*whoami
,
260 int nvec
, char **vec
) {
262 disorder_error(0, "%s:%d: '%s' takes only one argument",
263 cs
->path
, cs
->line
, whoami
->name
);
266 xfree(VALUE(cs
->config
, char *));
267 VALUE(cs
->config
, char *) = xstrdup(vec
[0]);
271 static int set_integer(const struct config_state
*cs
,
272 const struct conf
*whoami
,
273 int nvec
, char **vec
) {
277 disorder_error(0, "%s:%d: '%s' takes only one argument",
278 cs
->path
, cs
->line
, whoami
->name
);
281 if(xstrtol(ADDRESS(cs
->config
, long), vec
[0], &e
, 0)) {
282 disorder_error(errno
, "%s:%d: converting integer", cs
->path
, cs
->line
);
286 disorder_error(0, "%s:%d: invalid integer syntax", cs
->path
, cs
->line
);
292 static int set_stringlist_accum(const struct config_state
*cs
,
293 const struct conf
*whoami
,
294 int nvec
, char **vec
) {
296 struct stringlist
*s
;
297 struct stringlistlist
*sll
;
299 sll
= ADDRESS(cs
->config
, struct stringlistlist
);
305 sll
->s
= xrealloc(sll
->s
, (sll
->n
* sizeof (struct stringlist
)));
306 s
= &sll
->s
[sll
->n
- 1];
308 s
->s
= xmalloc((nvec
+ 1) * sizeof (char *));
309 for(n
= 0; n
< nvec
; ++n
)
310 s
->s
[n
] = xstrdup(vec
[n
]);
314 static int set_string_accum(const struct config_state
*cs
,
315 const struct conf
*whoami
,
316 int nvec
, char **vec
) {
318 struct stringlist
*sl
;
320 sl
= ADDRESS(cs
->config
, struct stringlist
);
325 for(n
= 0; n
< nvec
; ++n
) {
327 sl
->s
= xrealloc(sl
->s
, (sl
->n
* sizeof (char *)));
328 sl
->s
[sl
->n
- 1] = xstrdup(vec
[n
]);
333 static int parse_sample_format(const struct config_state
*cs
,
334 struct stream_header
*format
,
335 int nvec
, char **vec
) {
340 disorder_error(0, "%s:%d: wrong number of arguments", cs
->path
, cs
->line
);
343 if(xstrtol(&t
, p
, &p
, 0)) {
344 disorder_error(errno
, "%s:%d: converting bits-per-sample",
348 if(t
!= 8 && t
!= 16) {
349 disorder_error(0, "%s:%d: bad bits-per-sample (%ld)",
350 cs
->path
, cs
->line
, t
);
353 if(format
) format
->bits
= (uint8_t)t
;
355 case 'l': case 'L': t
= ENDIAN_LITTLE
; p
++; break;
356 case 'b': case 'B': t
= ENDIAN_BIG
; p
++; break;
357 default: t
= ENDIAN_NATIVE
; break;
359 if(format
) format
->endian
= (uint8_t)t
;
361 disorder_error(errno
, "%s:%d: expected `/' after bits-per-sample",
366 if(xstrtol(&t
, p
, &p
, 0)) {
367 disorder_error(errno
, "%s:%d: converting sample-rate", cs
->path
, cs
->line
);
370 if(t
< 1 || t
> INT_MAX
) {
371 disorder_error(0, "%s:%d: silly sample-rate (%ld)", cs
->path
, cs
->line
, t
);
374 if(format
) format
->rate
= t
;
376 disorder_error(0, "%s:%d: expected `/' after sample-rate",
381 if(xstrtol(&t
, p
, &p
, 0)) {
382 disorder_error(errno
, "%s:%d: converting channels", cs
->path
, cs
->line
);
386 disorder_error(0, "%s:%d: silly number (%ld) of channels",
387 cs
->path
, cs
->line
, t
);
390 if(format
) format
->channels
= (uint8_t)t
;
392 disorder_error(0, "%s:%d: junk after channels", cs
->path
, cs
->line
);
398 static int set_sample_format(const struct config_state
*cs
,
399 const struct conf
*whoami
,
400 int nvec
, char **vec
) {
401 return parse_sample_format(cs
, ADDRESS(cs
->config
, struct stream_header
),
405 static int set_namepart(const struct config_state
*cs
,
406 const struct conf
*whoami
,
407 int nvec
, char **vec
) {
408 struct namepartlist
*npl
= ADDRESS(cs
->config
, struct namepartlist
);
411 char errstr
[RXCERR_LEN
];
416 disorder_error(0, "%s:%d: namepart needs at least 3 arguments",
421 disorder_error(0, "%s:%d: namepart needs at most 5 arguments",
425 reflags
= nvec
>= 5 ?
regsub_flags(vec
[4]) : 0;
426 if(!(re
= regexp_compile(vec
[1], regsub_compile_options(reflags
),
427 errstr
, sizeof(errstr
), &erroffset
)))
429 disorder_error(0, "%s:%d: compiling regexp /%s/: %s (offset %zu)",
430 cs
->path
, cs
->line
, vec
[1], errstr
, erroffset
);
433 npl
->s
= xrealloc(npl
->s
, (npl
->n
+ 1) * sizeof (struct namepart
));
434 npl
->s
[npl
->n
].part
= xstrdup(vec
[0]);
435 npl
->s
[npl
->n
].re
= re
;
436 npl
->s
[npl
->n
].res
= xstrdup(vec
[1]);
437 npl
->s
[npl
->n
].replace
= xstrdup(vec
[2]);
438 npl
->s
[npl
->n
].context
= xstrdup(vec
[3]);
439 npl
->s
[npl
->n
].reflags
= reflags
;
441 /* XXX a bit of a bodge; relies on there being very few parts. */
442 for(n
= 0; (n
< cs
->config
->nparts
443 && strcmp(cs
->config
->parts
[n
], vec
[0])); ++n
)
445 if(n
>= cs
->config
->nparts
) {
446 cs
->config
->parts
= xrealloc(cs
->config
->parts
,
447 (cs
->config
->nparts
+ 1) * sizeof (char *));
448 cs
->config
->parts
[cs
->config
->nparts
++] = xstrdup(vec
[0]);
453 static int set_transform(const struct config_state
*cs
,
454 const struct conf
*whoami
,
455 int nvec
, char **vec
) {
456 struct transformlist
*tl
= ADDRESS(cs
->config
, struct transformlist
);
458 char errstr
[RXCERR_LEN
];
463 disorder_error(0, "%s:%d: transform needs at least 3 arguments",
468 disorder_error(0, "%s:%d: transform needs at most 5 arguments",
472 reflags
= (nvec
>= 5 ?
regsub_flags(vec
[4]) : 0);
473 if(!(re
= regexp_compile(vec
[1], regsub_compile_options(reflags
),
474 errstr
, sizeof(errstr
), &erroffset
)))
476 disorder_error(0, "%s:%d: compiling regexp /%s/: %s (offset %zu)",
477 cs
->path
, cs
->line
, vec
[1], errstr
, erroffset
);
480 tl
->t
= xrealloc(tl
->t
, (tl
->n
+ 1) * sizeof (struct namepart
));
481 tl
->t
[tl
->n
].type
= xstrdup(vec
[0]);
482 tl
->t
[tl
->n
].context
= xstrdup(vec
[3] ? vec
[3] : "*");
483 tl
->t
[tl
->n
].re
= re
;
484 tl
->t
[tl
->n
].replace
= xstrdup(vec
[2]);
485 tl
->t
[tl
->n
].flags
= reflags
;
490 static int set_rights(const struct config_state
*cs
,
491 const struct conf
*whoami
,
492 int nvec
, char **vec
) {
494 disorder_error(0, "%s:%d: '%s' requires one argument",
495 cs
->path
, cs
->line
, whoami
->name
);
498 if(parse_rights(vec
[0], 0, 1)) {
499 disorder_error(0, "%s:%d: invalid rights string '%s'",
500 cs
->path
, cs
->line
, vec
[0]);
503 return set_string(cs
, whoami
, nvec
, vec
);
506 static int set_netaddress(const struct config_state
*cs
,
507 const struct conf
*whoami
,
508 int nvec
, char **vec
) {
509 struct netaddress
*na
= ADDRESS(cs
->config
, struct netaddress
);
511 if(netaddress_parse(na
, nvec
, vec
)) {
512 disorder_error(0, "%s:%d: invalid network address", cs
->path
, cs
->line
);
520 static void free_none(struct config
attribute((unused
)) *c
,
521 const struct conf
attribute((unused
)) *whoami
) {
524 static void free_string(struct config
*c
,
525 const struct conf
*whoami
) {
526 xfree(VALUE(c
, char *));
527 VALUE(c
, char *) = 0;
530 static void free_stringlist(struct config
*c
,
531 const struct conf
*whoami
) {
533 struct stringlist
*sl
= ADDRESS(c
, struct stringlist
);
535 for(n
= 0; n
< sl
->n
; ++n
)
540 static void free_stringlistlist(struct config
*c
,
541 const struct conf
*whoami
) {
543 struct stringlistlist
*sll
= ADDRESS(c
, struct stringlistlist
);
544 struct stringlist
*sl
;
546 for(n
= 0; n
< sll
->n
; ++n
) {
548 for(m
= 0; m
< sl
->n
; ++m
)
555 static void free_collectionlist(struct config
*c
,
556 const struct conf
*whoami
) {
557 struct collectionlist
*cll
= ADDRESS(c
, struct collectionlist
);
558 struct collection
*cl
;
561 for(n
= 0; n
< cll
->n
; ++n
) {
570 static void free_namepartlist(struct config
*c
,
571 const struct conf
*whoami
) {
572 struct namepartlist
*npl
= ADDRESS(c
, struct namepartlist
);
576 for(n
= 0; n
< npl
->n
; ++n
) {
587 static void free_transformlist(struct config
*c
,
588 const struct conf
*whoami
) {
589 struct transformlist
*tl
= ADDRESS(c
, struct transformlist
);
593 for(n
= 0; n
< tl
->n
; ++n
) {
603 static void free_netaddress(struct config
*c
,
604 const struct conf
*whoami
) {
605 struct netaddress
*na
= ADDRESS(c
, struct netaddress
);
610 /* configuration types */
612 static const struct conftype
613 type_signal
= { set_signal
, free_none
},
614 type_collections
= { set_collections
, free_collectionlist
},
615 type_boolean
= { set_boolean
, free_none
},
616 type_string
= { set_string
, free_string
},
617 type_integer
= { set_integer
, free_none
},
618 type_stringlist_accum
= { set_stringlist_accum
, free_stringlistlist
},
619 type_string_accum
= { set_string_accum
, free_stringlist
},
620 type_sample_format
= { set_sample_format
, free_none
},
621 type_namepart
= { set_namepart
, free_namepartlist
},
622 type_transform
= { set_transform
, free_transformlist
},
623 type_netaddress
= { set_netaddress
, free_netaddress
},
624 type_rights
= { set_rights
, free_string
};
626 /* specific validation routine */
628 /** @brief Perform a test on a filename
629 * @param test Test function to call on mode bits
630 * @param what Type of file sought
632 * If @p test returns 0 then the file is not a @p what and an error
633 * is reported and -1 is returned.
635 #define VALIDATE_FILE(test, what) do { \
639 for(n = 0; n < nvec; ++n) { \
640 if(stat(vec[n], &sb) < 0) { \
641 disorder_error(errno, "%s:%d: %s", \
642 cs->path, cs->line, vec[n]); \
645 if(!test(sb.st_mode)) { \
646 disorder_error(0, "%s:%d: %s is not a %s", \
647 cs->path, cs->line, vec[n], what); \
653 /** @brief Validate an absolute path
654 * @param cs Configuration state
655 * @param nvec Length of (proposed) new value
656 * @param vec Elements of new value
657 * @return 0 on success, non-0 on error
659 static int validate_isabspath(const struct config_state
*cs
,
660 int nvec
, char **vec
) {
663 for(n
= 0; n
< nvec
; ++n
)
664 if(vec
[n
][0] != '/') {
665 disorder_error(0, "%s:%d: %s: not an absolute path",
666 cs
->path
, cs
->line
, vec
[n
]);
672 /** @brief Validate an existing directory
673 * @param cs Configuration state
674 * @param nvec Length of (proposed) new value
675 * @param vec Elements of new value
676 * @return 0 on success, non-0 on error
678 static int validate_isdir(const struct config_state
*cs
,
679 int nvec
, char **vec
) {
680 VALIDATE_FILE(S_ISDIR
, "directory");
684 /** @brief Validate an existing regular file
685 * @param cs Configuration state
686 * @param nvec Length of (proposed) new value
687 * @param vec Elements of new value
688 * @return 0 on success, non-0 on error
690 static int validate_isreg(const struct config_state
*cs
,
691 int nvec
, char **vec
) {
692 VALIDATE_FILE(S_ISREG
, "regular file");
696 /** @brief Validate a player pattern
697 * @param cs Configuration state
698 * @param nvec Length of (proposed) new value
699 * @param vec Elements of new value
700 * @return 0 on success, non-0 on error
702 static int validate_player(const struct config_state
*cs
,
704 char attribute((unused
)) **vec
) {
705 if(nvec
&& nvec
< 2) {
706 disorder_error(0, "%s:%d: should be at least 'player PATTERN MODULE'",
713 /** @brief Validate a track length pattern
714 * @param cs Configuration state
715 * @param nvec Length of (proposed) new value
716 * @param vec Elements of new value
717 * @return 0 on success, non-0 on error
719 static int validate_tracklength(const struct config_state
*cs
,
721 char attribute((unused
)) **vec
) {
722 if(nvec
&& nvec
< 2) {
723 disorder_error(0, "%s:%d: should be at least 'tracklength PATTERN MODULE'",
730 /** @brief Common code for validating integer values
731 * @param cs Configuration state
732 * @param nvec Length of (proposed) new value
733 * @param vec Elements of new value
734 * @param n_out Where to put the value
736 static int common_validate_integer(const struct config_state
*cs
,
737 int nvec
, char **vec
, long *n_out
) {
741 disorder_error(0, "%s:%d: missing argument", cs
->path
, cs
->line
);
745 disorder_error(0, "%s:%d: too many arguments", cs
->path
, cs
->line
);
748 if(xstrtol(n_out
, vec
[0], 0, 0)) {
749 disorder_error(0, "%s:%d: %s", cs
->path
, cs
->line
,
750 format_error(ec_errno
, errno
, errbuf
, sizeof errbuf
));
756 /** @brief Validate a non-negative (@c long) integer
757 * @param cs Configuration state
758 * @param nvec Length of (proposed) new value
759 * @param vec Elements of new value
760 * @return 0 on success, non-0 on error
762 static int validate_non_negative(const struct config_state
*cs
,
763 int nvec
, char **vec
) {
765 if(common_validate_integer(cs
, nvec
, vec
, &n
)) return -1;
767 disorder_error(0, "%s:%d: must not be negative", cs
->path
, cs
->line
);
773 /** @brief Validate a positive (@c long) integer
774 * @param cs Configuration state
775 * @param nvec Length of (proposed) new value
776 * @param vec Elements of new value
777 * @return 0 on success, non-0 on error
779 static int validate_positive(const struct config_state
*cs
,
780 int nvec
, char **vec
) {
782 if(common_validate_integer(cs
, nvec
, vec
, &n
)) return -1;
784 disorder_error(0, "%s:%d: must be positive", cs
->path
, cs
->line
);
791 /** @brief Validate a system username
792 * @param cs Configuration state
793 * @param nvec Length of (proposed) new value
794 * @param vec Elements of new value
795 * @return 0 on success, non-0 on error
797 static int validate_isauser(const struct config_state
*cs
,
798 int attribute((unused
)) nvec
,
800 if(!getpwnam(vec
[0])) {
801 disorder_error(0, "%s:%d: no such user as '%s'", cs
->path
, cs
->line
, vec
[0]);
808 /** @brief Validate a sample format string
809 * @param cs Configuration state
810 * @param nvec Length of (proposed) new value
811 * @param vec Elements of new value
812 * @return 0 on success, non-0 on error
814 static int validate_sample_format(const struct config_state
*cs
,
815 int attribute((unused
)) nvec
,
817 return parse_sample_format(cs
, 0, nvec
, vec
);
820 /** @brief Validate anything
821 * @param cs Configuration state
822 * @param nvec Length of (proposed) new value
823 * @param vec Elements of new value
826 static int validate_any(const struct config_state
attribute((unused
)) *cs
,
827 int attribute((unused
)) nvec
,
828 char attribute((unused
)) **vec
) {
832 /** @brief Validate a URL
833 * @param cs Configuration state
834 * @param nvec Length of (proposed) new value
835 * @param vec Elements of new value
836 * @return 0 on success, non-0 on error
840 static int validate_url(const struct config_state
attribute((unused
)) *cs
,
841 int attribute((unused
)) nvec
,
845 /* absoluteURI = scheme ":" ( hier_part | opaque_part )
846 scheme = alpha *( alpha | digit | "+" | "-" | "." ) */
848 n
= strspn(s
, ("abcdefghijklmnopqrstuvwxyz"
849 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
852 disorder_error(0, "%s:%d: invalid url '%s'", cs
->path
, cs
->line
, vec
[0]);
855 if(!strncmp(s
, "http:", 5)
856 || !strncmp(s
, "https:", 6)) {
858 /* we only do a rather cursory check */
859 if(strncmp(s
, "//", 2)) {
860 disorder_error(0, "%s:%d: invalid url '%s'", cs
->path
, cs
->line
, vec
[0]);
867 /** @brief Validate an alias pattern
868 * @param cs Configuration state
869 * @param nvec Length of (proposed) new value
870 * @param vec Elements of new value
871 * @return 0 on success, non-0 on error
873 static int validate_alias(const struct config_state
*cs
,
877 int in_brackets
= 0, c
;
880 disorder_error(0, "%s:%d: missing argument", cs
->path
, cs
->line
);
884 disorder_error(0, "%s:%d: too many arguments", cs
->path
, cs
->line
);
888 while((c
= (unsigned char)*s
++)) {
892 else if(!isalnum(c
)) {
893 disorder_error(0, "%s:%d: invalid part name in alias expansion in '%s'",
894 cs
->path
, cs
->line
, vec
[0]);
902 } else if(c
== '\\') {
903 if(!(c
= (unsigned char)*s
++)) {
904 disorder_error(0, "%s:%d: unterminated escape in alias expansion in '%s'",
905 cs
->path
, cs
->line
, vec
[0]);
907 } else if(c
!= '\\' && c
!= '{') {
908 disorder_error(0, "%s:%d: invalid escape in alias expansion in '%s'",
909 cs
->path
, cs
->line
, vec
[0]);
918 "%s:%d: unterminated part name in alias expansion in '%s'",
919 cs
->path
, cs
->line
, vec
[0]);
925 /** @brief Validate a hash algorithm name
926 * @param cs Configuration state
927 * @param nvec Length of (proposed) new value
928 * @param vec Elements of new value
929 * @return 0 on success, non-0 on error
931 static int validate_algo(const struct config_state
attribute((unused
)) *cs
,
935 disorder_error(0, "%s:%d: invalid algorithm specification", cs
->path
, cs
->line
);
938 if(!valid_authhash(vec
[0])) {
939 disorder_error(0, "%s:%d: unsuported algorithm '%s'", cs
->path
, cs
->line
, vec
[0]);
946 /** @brief Validate a playback backend name
947 * @param cs Configuration state
948 * @param nvec Length of (proposed) new value
949 * @param vec Elements of new value
950 * @return 0 on success, non-0 on error
952 static int validate_backend(const struct config_state
attribute((unused
)) *cs
,
957 disorder_error(0, "%s:%d: invalid sound API specification", cs
->path
, cs
->line
);
960 if(!strcmp(vec
[0], "network")) {
961 disorder_error(0, "'api network' is deprecated; use 'api rtp'");
964 if(config_uaudio_apis
) {
965 for(n
= 0; config_uaudio_apis
[n
]; ++n
)
966 if(!strcmp(vec
[0], config_uaudio_apis
[n
]->name
))
968 disorder_error(0, "%s:%d: unrecognized sound API '%s'", cs
->path
, cs
->line
, vec
[0]);
971 /* In non-server processes we have no idea what's valid */
976 /** @brief Validate a pause mode string
977 * @param cs Configuration state
978 * @param nvec Length of (proposed) new value
979 * @param vec Elements of new value
980 * @return 0 on success, non-0 on error
982 static int validate_pausemode(const struct config_state
attribute((unused
)) *cs
,
985 if(nvec
== 1 && (!strcmp(vec
[0], "silence") || !strcmp(vec
[0], "suspend")))
987 disorder_error(0, "%s:%d: invalid pause mode", cs
->path
, cs
->line
);
991 /** @brief Validate an MTU-discovery setting
992 * @param cs Configuration state
993 * @param nvec Length of (proposed) new value
994 * @param vec Elements of new value
995 * @return 0 on success, non-0 on error
997 static int validate_mtu_discovery(const struct config_state
attribute((unused
)) *cs
,
1001 (!strcmp(vec
[0], "default") ||
1002 !strcmp(vec
[0], "yes") ||
1003 !strcmp(vec
[0], "no")))
1005 disorder_error(0, "%s:%d: invalid MTU-discovery setting", cs
->path
, cs
->line
);
1009 /** @brief Validate a destination network address
1010 * @param cs Configuration state
1011 * @param nvec Length of (proposed) new value
1012 * @param vec Elements of new value
1013 * @return 0 on success, non-0 on error
1015 * By a destination address, it is meant that it must not be a wildcard
1018 static int validate_destaddr(const struct config_state
attribute((unused
)) *cs
,
1021 struct netaddress na
[1];
1023 if(netaddress_parse(na
, nvec
, vec
)) {
1024 disorder_error(0, "%s:%d: invalid network address", cs
->path
, cs
->line
);
1028 disorder_error(0, "%s:%d: destination address required", cs
->path
, cs
->line
);
1035 /** @brief Validate an internet address
1036 * @param cs Configuration state
1037 * @param nvec Length of (proposed) new value
1038 * @param vec Elements of new value
1039 * @return 0 on success, non-0 on error
1041 * By a destination address, it is meant that it must be either IPv4 or IPv6.
1043 static int validate_inetaddr(const struct config_state
*cs
,
1044 int nvec
, char **vec
) {
1045 struct netaddress na
[1];
1047 if(netaddress_parse(na
, nvec
, vec
)) {
1048 disorder_error(0, "%s:%d: invalid network address", cs
->path
, cs
->line
);
1052 case AF_INET
: case AF_INET6
: case AF_UNSPEC
: break;
1054 disorder_error(0, "%s:%d: must be an intenet address",
1055 cs
->path
, cs
->line
);
1061 /** @brief Item name and and offset */
1062 #define C(x) #x, offsetof(struct config, x)
1063 /** @brief Item name and and offset */
1064 #define C2(x,y) #x, offsetof(struct config, y)
1066 /** @brief All configuration items */
1067 static const struct conf conf
[] = {
1068 { C(alias
), &type_string
, validate_alias
},
1070 { C(api
), &type_string
, validate_backend
},
1072 { C(authorization_algorithm
), &type_string
, validate_algo
},
1073 { C(broadcast
), &type_netaddress
, validate_destaddr
},
1074 { C(broadcast_from
), &type_netaddress
, validate_any
},
1075 { C(channel
), &type_string
, validate_any
},
1076 { C(checkpoint_kbyte
), &type_integer
, validate_non_negative
},
1077 { C(checkpoint_min
), &type_integer
, validate_non_negative
},
1078 { C(collection
), &type_collections
, validate_any
},
1079 { C(connect
), &type_netaddress
, validate_destaddr
},
1080 { C(cookie_key_lifetime
), &type_integer
, validate_positive
},
1081 { C(cookie_login_lifetime
), &type_integer
, validate_positive
},
1082 { C(dbversion
), &type_integer
, validate_positive
},
1083 { C(default_rights
), &type_rights
, validate_any
},
1084 { C(device
), &type_string
, validate_any
},
1085 { C(history
), &type_integer
, validate_positive
},
1087 { C(home
), &type_string
, validate_isabspath
},
1089 { C(listen
), &type_netaddress
, validate_any
},
1090 { C(mail_sender
), &type_string
, validate_any
},
1091 { C(mixer
), &type_string
, validate_any
},
1092 { C(mount_rescan
), &type_boolean
, validate_any
},
1093 { C(multicast_loop
), &type_boolean
, validate_any
},
1094 { C(multicast_ttl
), &type_integer
, validate_non_negative
},
1095 { C(namepart
), &type_namepart
, validate_any
},
1096 { C(new_bias
), &type_integer
, validate_positive
},
1097 { C(new_bias_age
), &type_integer
, validate_positive
},
1098 { C(new_max
), &type_integer
, validate_positive
},
1099 { C2(nice
, nice_rescan
), &type_integer
, validate_non_negative
},
1100 { C(nice_rescan
), &type_integer
, validate_non_negative
},
1101 { C(nice_server
), &type_integer
, validate_any
},
1102 { C(nice_speaker
), &type_integer
, validate_any
},
1103 { C(noticed_history
), &type_integer
, validate_positive
},
1104 { C(password
), &type_string
, validate_any
},
1105 { C(pause_mode
), &type_string
, validate_pausemode
},
1106 { C(player
), &type_stringlist_accum
, validate_player
},
1107 { C(playlist_lock_timeout
), &type_integer
, validate_positive
},
1108 { C(playlist_max
) , &type_integer
, validate_positive
},
1109 { C(plugins
), &type_string_accum
, validate_isdir
},
1110 { C(queue_pad
), &type_integer
, validate_positive
},
1111 { C(refresh
), &type_integer
, validate_positive
},
1112 { C(refresh_min
), &type_integer
, validate_non_negative
},
1113 { C(reminder_interval
), &type_integer
, validate_positive
},
1114 { C(remote_userman
), &type_boolean
, validate_any
},
1115 { C(replay_min
), &type_integer
, validate_non_negative
},
1116 { C(rtp_always_request
), &type_boolean
, validate_any
},
1117 { C(rtp_delay_threshold
), &type_integer
, validate_positive
},
1118 { C(rtp_instance_name
), &type_string
, validate_any
},
1119 { C(rtp_max_payload
), &type_integer
, validate_positive
},
1120 { C(rtp_maxbuffer
), &type_integer
, validate_non_negative
},
1121 { C(rtp_minbuffer
), &type_integer
, validate_non_negative
},
1122 { C(rtp_mode
), &type_string
, validate_any
},
1123 { C(rtp_mtu_discovery
), &type_string
, validate_mtu_discovery
},
1124 { C(rtp_rcvbuf
), &type_integer
, validate_non_negative
},
1125 { C(rtp_request_address
), &type_netaddress
, validate_inetaddr
},
1126 { C(rtp_verbose
), &type_boolean
, validate_any
},
1127 { C(sample_format
), &type_sample_format
, validate_sample_format
},
1128 { C(scratch
), &type_string_accum
, validate_isreg
},
1130 { C(sendmail
), &type_string
, validate_isabspath
},
1132 { C(short_display
), &type_integer
, validate_positive
},
1133 { C(signal
), &type_signal
, validate_any
},
1134 { C(smtp_server
), &type_string
, validate_any
},
1135 { C(sox_generation
), &type_integer
, validate_non_negative
},
1137 { C2(speaker_backend
, api
), &type_string
, validate_backend
},
1139 { C(speaker_command
), &type_string
, validate_any
},
1140 { C(stopword
), &type_string_accum
, validate_any
},
1141 { C(templates
), &type_string_accum
, validate_isdir
},
1142 { C(tracklength
), &type_stringlist_accum
, validate_tracklength
},
1143 { C(transform
), &type_transform
, validate_any
},
1144 { C(url
), &type_string
, validate_url
},
1146 { C(user
), &type_string
, validate_isauser
},
1148 { C(username
), &type_string
, validate_any
},
1151 /** @brief Find a configuration item's definition by key */
1152 static const struct conf
*find(const char *key
) {
1155 if((n
= TABLE_FIND(conf
, name
, key
)) < 0)
1160 /** @brief Set a new configuration value
1161 * @param cs Configuration state
1162 * @param nvec Length of @p vec
1163 * @param vec Name and new value
1164 * @return 0 on success, non-0 on error.
1166 * @c vec[0] is the name, the rest is the value.
1168 static int config_set(const struct config_state
*cs
,
1169 int nvec
, char **vec
) {
1170 const struct conf
*which
;
1172 D(("config_set %s", vec
[0]));
1173 if(!(which
= find(vec
[0]))) {
1174 disorder_error(0, "%s:%d: unknown configuration key '%s'",
1175 cs
->path
, cs
->line
, vec
[0]);
1178 return (which
->validate(cs
, nvec
- 1, vec
+ 1)
1179 || which
->type
->set(cs
, which
, nvec
- 1, vec
+ 1));
1182 /** @brief Set a configuration item from parameters
1183 * @param cs Configuration state
1184 * @param which Item to set
1185 * @param ... Value as strings, terminated by (char *)NULL
1186 * @return 0 on success, non-0 on error
1188 static int config_set_args(const struct config_state
*cs
,
1189 const char *which
, ...) {
1196 vector_append(v
, (char *)which
);
1197 va_start(ap
, which
);
1198 while((s
= va_arg(ap
, char *)))
1199 vector_append(v
, s
);
1201 vector_terminate(v
);
1202 rc
= config_set(cs
, v
->nvec
, v
->vec
);
1207 /** @brief Error callback used by config_include()
1208 * @param msg Error message
1209 * @param u User data (@ref config_state)
1211 static void config_error(const char *msg
, void *u
) {
1212 const struct config_state
*cs
= u
;
1214 disorder_error(0, "%s:%d: %s", cs
->path
, cs
->line
, msg
);
1217 /** @brief Include a file by name
1218 * @param c Configuration to update
1219 * @param path Path to read
1220 * @return 0 on success, non-0 on error
1222 static int config_include(struct config
*c
, const char *path
) {
1224 char *buffer
, *inputbuffer
, **vec
;
1226 struct config_state cs
;
1231 D(("%s: reading configuration", path
));
1232 if(!(fp
= fopen(path
, "r"))) {
1233 disorder_error(errno
, "error opening %s", path
);
1236 while(!inputline(path
, fp
, &inputbuffer
, '\n')) {
1238 if(!(buffer
= mb2utf8(inputbuffer
))) {
1239 disorder_error(errno
, "%s:%d: cannot convert to UTF-8", cs
.path
, cs
.line
);
1245 if(!(vec
= split(buffer
, &n
, SPLIT_COMMENTS
|SPLIT_QUOTES
,
1246 config_error
, &cs
))) {
1252 /* 'include' is special-cased */
1253 if(!strcmp(vec
[0], "include")) {
1255 disorder_error(0, "%s:%d: must be 'include PATH'", cs
.path
, cs
.line
);
1258 config_include(c
, vec
[1]);
1260 ret
|= config_set(&cs
, n
, vec
);
1262 for(n
= 0; vec
[n
]; ++n
) xfree(vec
[n
]);
1267 disorder_error(errno
, "error reading %s", path
);
1274 /** @brief Default stopword setting */
1275 static const char *const default_stopwords
[] = {
1334 #define NDEFAULT_STOPWORDS (sizeof default_stopwords / sizeof *default_stopwords)
1336 /** @brief Default player patterns */
1337 static const char *const default_players
[] = {
1343 #define NDEFAULT_PLAYERS (sizeof default_players / sizeof *default_players)
1345 /** @brief Make a new default configuration
1346 * @return New configuration
1348 static struct config
*config_default(void) {
1349 struct config
*c
= xmalloc(sizeof *c
);
1351 const char *logname
;
1354 struct config_state cs
;
1357 cs
.path
= "<internal>";
1360 /* Strings had better be xstrdup'd as they will get freed at some point. */
1363 c
->home
= xstrdup(pkgstatedir
);
1368 DWORD bufsize
= sizeof buffer
;
1369 if(!GetUserNameA(buffer
, &bufsize
))
1370 disorder_fatal(0, "cannot determine our username");
1371 c
->username
= xstrdup(buffer
);
1374 if(!(pw
= getpwuid(getuid())))
1375 disorder_fatal(0, "cannot determine our username");
1376 logname
= pw
->pw_name
;
1377 c
->username
= xstrdup(logname
);
1382 c
->signal
= SIGKILL
;
1384 c
->signal
= SIGTERM
;
1386 c
->alias
= xstrdup("{/artist}{/album}{/title}{ext}");
1387 c
->device
= xstrdup("default");
1388 c
->nice_rescan
= 10;
1389 c
->speaker_command
= 0;
1390 c
->sample_format
.bits
= 16;
1391 c
->sample_format
.rate
= 44100;
1392 c
->sample_format
.channels
= 2;
1393 c
->sample_format
.endian
= ENDIAN_NATIVE
;
1395 c
->replay_min
= 8 * 3600;
1397 c
->multicast_ttl
= 1;
1398 c
->multicast_loop
= 1;
1399 c
->authorization_algorithm
= xstrdup("sha1");
1400 c
->noticed_history
= 31;
1401 c
->short_display
= 32;
1405 c
->cookie_login_lifetime
= 86400;
1406 c
->cookie_key_lifetime
= 86400 * 7;
1408 if(sendmail_binary
[0] && strcmp(sendmail_binary
, "none"))
1409 c
->sendmail
= xstrdup(sendmail_binary
);
1411 c
->smtp_server
= xstrdup("127.0.0.1");
1413 c
->reminder_interval
= 600; /* 10m */
1414 c
->new_bias_age
= 7 * 86400; /* 1 week */
1415 c
->new_bias
= 4500000; /* 50 times the base weight */
1416 c
->sox_generation
= DEFAULT_SOX_GENERATION
;
1417 c
->playlist_max
= INT_MAX
; /* effectively no limit */
1418 c
->playlist_lock_timeout
= 10; /* 10s */
1419 c
->mount_rescan
= 1;
1420 /* Default stopwords */
1421 if(config_set(&cs
, (int)NDEFAULT_STOPWORDS
, (char **)default_stopwords
))
1423 /* Default player configuration */
1424 for(n
= 0; n
< NDEFAULT_PLAYERS
; ++n
) {
1425 if(config_set_args(&cs
, "player",
1426 default_players
[n
], "execraw", "disorder-decode", (char *)0))
1428 if(config_set_args(&cs
, "tracklength",
1429 default_players
[n
], "disorder-tracklength", (char *)0))
1432 c
->broadcast
.af
= -1;
1433 c
->broadcast_from
.af
= -1;
1436 c
->rtp_mode
= xstrdup("auto");
1437 c
->rtp_max_payload
= -1;
1438 c
->rtp_mtu_discovery
= xstrdup("default");
1443 /** @brief Construct a filename
1444 * @param c Configuration
1445 * @param name Base filename
1446 * @return Full filename
1448 * Usually use config_get_file() instead.
1450 char *config_get_file2(struct config
*c
, const char *name
) {
1453 byte_xasprintf(&s
, "%s/%s", c
->home
, name
);
1458 /** @brief Set the default configuration file */
1459 static void set_configfile(void) {
1464 configfile
= getenv("DISORDER_CONFIG");
1466 byte_xasprintf(&configfile
, "%s/config", pkgconfdir
);
1469 if(!userconfigfile
&& config_per_user
) {
1470 if((t
= getenv("DISORDER_USERCONFIG"))) userconfigfile
= xstrdup(t
);
1471 else if(!(userconfigfile
= profile_filename("passwd")))
1472 disorder_fatal(0, "failed to find user profile directory");
1476 /** @brief Free a configuration object
1477 * @param c Configuration to free
1479 * @p c is indeterminate after this function is called.
1481 void config_free(struct config
*c
) {
1485 for(n
= 0; n
< (int)(sizeof conf
/ sizeof *conf
); ++n
)
1486 conf
[n
].type
->free(c
, &conf
[n
]);
1487 for(n
= 0; n
< c
->nparts
; ++n
)
1494 /** @brief Set post-parse defaults
1495 * @param c Configuration to update
1496 * @param server True when running in the server
1498 * If @p server is set then certain parts of the configuration are more
1499 * strictly validated.
1501 static void config_postdefaults(struct config
*c
,
1503 struct config_state cs
;
1504 const struct conf
*whoami
;
1507 static const char *namepart
[][4] = {
1508 { "title", "/([0-9]+ *[-:]? *)?([^/]+)\\.[a-zA-Z0-9]+$", "$2", "display" },
1509 { "title", "/([^/]+)\\.[a-zA-Z0-9]+$", "$1", "sort" },
1510 { "album", "/([^/]+)/[^/]+$", "$1", "*" },
1511 { "artist", "/([^/]+)/[^/]+/[^/]+$", "$1", "*" },
1512 { "ext", "(\\.[a-zA-Z0-9]+)$", "$1", "*" },
1514 #define NNAMEPART (int)(sizeof namepart / sizeof *namepart)
1516 static const char *transform
[][5] = {
1517 { "track", "^.*/([0-9]+ *[-:]? *)?([^/]+)\\.[a-zA-Z0-9]+$", "$2", "display", "" },
1518 { "track", "^.*/([^/]+)\\.[a-zA-Z0-9]+$", "$1", "sort", "" },
1519 { "dir", "^.*/([^/]+)$", "$1", "*", "" },
1520 { "dir", "^(the) ([^/]*)", "$2, $1", "sort", "i", },
1521 { "dir", "[[:punct:]]", "", "sort", "g", }
1523 #define NTRANSFORM (int)(sizeof transform / sizeof *transform)
1525 cs
.path
= "<internal>";
1528 if(!c
->namepart
.n
) {
1529 whoami
= find("namepart");
1530 for(n
= 0; n
< NNAMEPART
; ++n
)
1531 set_namepart(&cs
, whoami
, 4, (char **)namepart
[n
]);
1533 if(!c
->transform
.n
) {
1534 whoami
= find("transform");
1535 for(n
= 0; n
< NTRANSFORM
; ++n
)
1536 set_transform(&cs
, whoami
, 5, (char **)transform
[n
]);
1539 if(c
->speaker_command
)
1540 c
->api
= xstrdup("command");
1541 else if(c
->broadcast
.af
!= -1)
1542 c
->api
= xstrdup("rtp");
1544 else if(config_uaudio_apis
)
1545 c
->api
= xstrdup(uaudio_default(config_uaudio_apis
,
1546 UAUDIO_API_SERVER
)->name
);
1549 c
->api
= xstrdup("<none>");
1551 if(!strcmp(c
->api
, "network"))
1552 c
->api
= xstrdup("rtp");
1554 if(!strcmp(c
->api
, "command") && !c
->speaker_command
)
1555 disorder_fatal(0, "'api command' but speaker_command is not set");
1556 if((!strcmp(c
->api
, "rtp")) &&
1557 c
->broadcast
.af
== -1 && strcmp(c
->rtp_mode
, "request"))
1558 disorder_fatal(0, "'api rtp' but broadcast is not set "
1559 "and mode is not not 'request'");
1561 /* Override sample format */
1562 if(!strcmp(c
->api
, "rtp")) {
1563 c
->sample_format
.rate
= 44100;
1564 c
->sample_format
.channels
= 2;
1565 c
->sample_format
.bits
= 16;
1566 c
->sample_format
.endian
= ENDIAN_NATIVE
;
1568 if(!strcmp(c
->api
, "coreaudio")) {
1569 c
->sample_format
.rate
= 44100;
1570 c
->sample_format
.channels
= 2;
1571 c
->sample_format
.bits
= 16;
1572 c
->sample_format
.endian
= ENDIAN_NATIVE
;
1574 if(!c
->default_rights
) {
1575 rights_type r
= RIGHTS__MASK
& ~(RIGHT_ADMIN
|RIGHT_REGISTER
1577 |RIGHT_SCRATCH__MASK
1578 |RIGHT_REMOVE__MASK
);
1579 r
|= RIGHT_SCRATCH_ANY
|RIGHT_MOVE_ANY
|RIGHT_REMOVE_ANY
;
1580 c
->default_rights
= rights_string(r
);
1584 /** @brief (Re-)read the config file
1585 * @param server If set, do extra checking
1586 * @param oldconfig Old configuration for compatibility check
1587 * @return 0 on success, non-0 on error
1589 * If @p oldconfig is set, then certain compatibility checks are done between
1590 * the old and new configurations.
1592 int config_read(int server
,
1593 const struct config
*oldconfig
) {
1596 struct passwd
*pw
= NULL
;
1599 c
= config_default();
1600 /* standalone client installs might not have a global config file */
1602 if(access(configfile
, F_OK
) == 0)
1603 if(config_include(c
, configfile
))
1605 /* if we can read the private config file, do */
1606 if((privconf
= config_private())
1607 && access(privconf
, R_OK
) == 0
1608 && config_include(c
, privconf
))
1611 /* if there's a per-user system config file for this user, read it */
1612 if(config_per_user
) {
1614 if(!(pw
= getpwuid(getuid())))
1615 disorder_fatal(0, "cannot determine our username");
1616 if((privconf
= config_usersysconf(pw
))
1617 && access(privconf
, F_OK
) == 0
1618 && config_include(c
, privconf
))
1622 /* if we have a password file, read it */
1623 if(access(userconfigfile
, F_OK
) == 0
1624 && config_include(c
, userconfigfile
))
1627 /* install default namepart and transform settings */
1628 config_postdefaults(c
, server
);
1632 if(strcmp(c
->home
, oldconfig
->home
)) {
1633 disorder_error(0, "'home' cannot be changed without a restart");
1637 if(strcmp(c
->alias
, oldconfig
->alias
)) {
1638 disorder_error(0, "'alias' cannot be changed without a restart");
1641 if(strcmp(c
->user
, oldconfig
->user
)) {
1642 disorder_error(0, "'user' cannot be changed without a restart");
1645 if(c
->nice_speaker
!= oldconfig
->nice_speaker
) {
1646 disorder_error(0, "'nice_speaker' cannot be changed without a restart");
1647 /* ...but we accept the new config anyway */
1649 if(c
->nice_server
!= oldconfig
->nice_server
) {
1650 disorder_error(0, "'nice_server' cannot be changed without a restart");
1651 /* ...but we accept the new config anyway */
1653 if(namepartlist_compare(&c
->namepart
, &oldconfig
->namepart
)) {
1654 disorder_error(0, "'namepart' settings cannot be changed without a restart");
1657 if(stringlist_compare(&c
->stopword
, &oldconfig
->stopword
)) {
1658 disorder_error(0, "'stopword' settings cannot be changed without a restart");
1662 disorder_error(0, "not installing incompatible new configuration");
1666 /* everything is good so we shall use the new config */
1667 config_free(config
);
1668 /* warn about obsolete directives */
1673 /** @brief Return the path to the private configuration file */
1674 char *config_private(void) {
1680 if((s
= getenv("DISORDER_PRIVCONFIG"))) return xstrdup(s
);
1682 byte_xasprintf(&s
, "%s.private", configfile
);
1688 /** @brief Return the path to user-specific system configuration */
1689 char *config_usersysconf(const struct passwd
*pw
) {
1693 if((s
= getenv("DISORDER_USERCONFIG_SYS")))
1695 else if(!strchr(pw
->pw_name
, '/')) {
1696 byte_xasprintf(&s
, "%s.%s", configfile
, pw
->pw_name
);
1702 /** @brief Get a filename within the home directory
1703 * @param name Relative name
1706 char *config_get_file(const char *name
) {
1707 return config_get_file2(config
, name
);
1711 /** @brief Order two stringlists
1712 * @param a First stringlist
1713 * @param b Second stringlist
1714 * @return <0, 0 or >0 if a<b, a=b or a>b
1716 static int stringlist_compare(const struct stringlist
*a
,
1717 const struct stringlist
*b
) {
1720 while(n
< a
->n
&& n
< b
->n
) {
1721 if((c
= strcmp(a
->s
[n
], b
->s
[n
])))
1727 else if(a
->n
> b
->n
)
1733 /** @brief Order two namepart definitions
1734 * @param a First namepart definition
1735 * @param b Second namepart definition
1736 * @return <0, 0 or >0 if a<b, a=b or a>b
1738 static int namepart_compare(const struct namepart
*a
,
1739 const struct namepart
*b
) {
1742 if((c
= strcmp(a
->part
, b
->part
)))
1744 if((c
= strcmp(a
->res
, b
->res
)))
1746 if((c
= strcmp(a
->replace
, b
->replace
)))
1748 if((c
= strcmp(a
->context
, b
->context
)))
1750 if(a
->reflags
> b
->reflags
)
1752 if(a
->reflags
< b
->reflags
)
1757 /** @brief Order two lists of namepart definitions
1758 * @param a First list of namepart definitions
1759 * @param b Second list of namepart definitions
1760 * @return <0, 0 or >0 if a<b, a=b or a>b
1762 static int namepartlist_compare(const struct namepartlist
*a
,
1763 const struct namepartlist
*b
) {
1766 while(n
< a
->n
&& n
< b
->n
) {
1767 if((c
= namepart_compare(&a
->s
[n
], &b
->s
[n
])))
1773 else if(a
->n
< b
->n
)
1779 /** @brief Verify configuration table.
1780 * @return The number of problems found
1782 int config_verify(void) {
1785 for(n
= 1; n
< sizeof conf
/ sizeof *conf
; ++n
)
1786 if(strcmp(conf
[n
-1].name
, conf
[n
].name
) >= 0) {
1787 fprintf(stderr
, "%s >= %s\n", conf
[n
-1].name
, conf
[n
].name
);