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 Read user configuration
71 * If clear, the user-specific configuration is not read.
73 int config_per_user
= 1;
76 /** @brief Table of audio APIs
78 * Only set in server processes.
80 const struct uaudio
*const *config_uaudio_apis
;
83 /** @brief Config file parser state */
85 /** @brief Filename */
88 /** @brief Line number */
91 /** @brief Configuration object under construction */
92 struct config
*config
;
95 /** @brief Current configuration */
96 struct config
*config
;
98 /** @brief One configuration item */
100 /** @brief Name as it appears in the config file */
103 /** @brief Offset in @ref config structure */
106 /** @brief Pointer to item type */
107 const struct conftype
*type
;
109 /** @brief Pointer to item-specific validation routine
110 * @param cs Configuration state
111 * @param nvec Length of (proposed) new value
112 * @param vec Elements of new value
113 * @return 0 on success, non-0 on error
115 * The validate function should report any error it detects.
117 int (*validate
)(const struct config_state
*cs
,
118 int nvec
, char **vec
);
121 /** @brief Type of a configuration item */
123 /** @brief Pointer to function to set item
124 * @param cs Configuration state
125 * @param whoami Configuration item to set
126 * @param nvec Length of new value
127 * @param vec New value
128 * @return 0 on success, non-0 on error
130 int (*set
)(const struct config_state
*cs
,
131 const struct conf
*whoami
,
132 int nvec
, char **vec
);
134 /** @brief Pointer to function to free item
135 * @param c Configuration structure to free an item of
136 * @param whoami Configuration item to free
138 void (*free
)(struct config
*c
, const struct conf
*whoami
);
141 /** @brief Compute the address of an item */
142 #define ADDRESS(C, TYPE) ((TYPE *)((char *)(C) + whoami->offset))
143 /** @brief Return the value of an item */
144 #define VALUE(C, TYPE) (*ADDRESS(C, TYPE))
146 static int stringlist_compare(const struct stringlist
*a
,
147 const struct stringlist
*b
);
148 static int namepartlist_compare(const struct namepartlist
*a
,
149 const struct namepartlist
*b
);
151 static int set_signal(const struct config_state
*cs
,
152 const struct conf
*whoami
,
153 int nvec
, char **vec
) {
157 disorder_error(0, "%s:%d: '%s' requires one argument",
158 cs
->path
, cs
->line
, whoami
->name
);
161 if((n
= find_signal(vec
[0])) == -1) {
162 disorder_error(0, "%s:%d: unknown signal '%s'",
163 cs
->path
, cs
->line
, vec
[0]);
166 VALUE(cs
->config
, int) = n
;
170 static int set_collections(const struct config_state
*cs
,
171 const struct conf
*whoami
,
172 int nvec
, char **vec
) {
173 struct collectionlist
*cl
;
174 const char *root
, *encoding
, *module
;
193 disorder_error(0, "%s:%d: '%s' requires at least one argument",
194 cs
->path
, cs
->line
, whoami
->name
);
197 disorder_error(0, "%s:%d: '%s' requires at most three arguments",
198 cs
->path
, cs
->line
, whoami
->name
);
201 /* Sanity check root */
203 disorder_error(0, "%s:%d: collection root must start with '/'",
207 if(root
[1] && root
[strlen(root
)-1] == '/') {
208 disorder_error(0, "%s:%d: collection root must not end with '/'",
217 encoding
= nl_langinfo(CODESET
);
222 cl
= ADDRESS(cs
->config
, struct collectionlist
);
224 cl
->s
= xrealloc(cl
->s
, cl
->n
* sizeof (struct collection
));
225 cl
->s
[cl
->n
- 1].module
= xstrdup(module
);
226 cl
->s
[cl
->n
- 1].encoding
= xstrdup(encoding
);
227 cl
->s
[cl
->n
- 1].root
= xstrdup(root
);
231 static int set_boolean(const struct config_state
*cs
,
232 const struct conf
*whoami
,
233 int nvec
, char **vec
) {
237 disorder_error(0, "%s:%d: '%s' takes only one argument",
238 cs
->path
, cs
->line
, whoami
->name
);
241 if(!strcmp(vec
[0], "yes")) state
= 1;
242 else if(!strcmp(vec
[0], "no")) state
= 0;
244 disorder_error(0, "%s:%d: argument to '%s' must be 'yes' or 'no'",
245 cs
->path
, cs
->line
, whoami
->name
);
248 VALUE(cs
->config
, int) = state
;
252 static int set_string(const struct config_state
*cs
,
253 const struct conf
*whoami
,
254 int nvec
, char **vec
) {
256 disorder_error(0, "%s:%d: '%s' takes only one argument",
257 cs
->path
, cs
->line
, whoami
->name
);
260 xfree(VALUE(cs
->config
, char *));
261 VALUE(cs
->config
, char *) = xstrdup(vec
[0]);
265 static int set_integer(const struct config_state
*cs
,
266 const struct conf
*whoami
,
267 int nvec
, char **vec
) {
271 disorder_error(0, "%s:%d: '%s' takes only one argument",
272 cs
->path
, cs
->line
, whoami
->name
);
275 if(xstrtol(ADDRESS(cs
->config
, long), vec
[0], &e
, 0)) {
276 disorder_error(errno
, "%s:%d: converting integer", cs
->path
, cs
->line
);
280 disorder_error(0, "%s:%d: invalid integer syntax", cs
->path
, cs
->line
);
286 static int set_stringlist_accum(const struct config_state
*cs
,
287 const struct conf
*whoami
,
288 int nvec
, char **vec
) {
290 struct stringlist
*s
;
291 struct stringlistlist
*sll
;
293 sll
= ADDRESS(cs
->config
, struct stringlistlist
);
299 sll
->s
= xrealloc(sll
->s
, (sll
->n
* sizeof (struct stringlist
)));
300 s
= &sll
->s
[sll
->n
- 1];
302 s
->s
= xmalloc((nvec
+ 1) * sizeof (char *));
303 for(n
= 0; n
< nvec
; ++n
)
304 s
->s
[n
] = xstrdup(vec
[n
]);
308 static int set_string_accum(const struct config_state
*cs
,
309 const struct conf
*whoami
,
310 int nvec
, char **vec
) {
312 struct stringlist
*sl
;
314 sl
= ADDRESS(cs
->config
, struct stringlist
);
319 for(n
= 0; n
< nvec
; ++n
) {
321 sl
->s
= xrealloc(sl
->s
, (sl
->n
* sizeof (char *)));
322 sl
->s
[sl
->n
- 1] = xstrdup(vec
[n
]);
327 static int parse_sample_format(const struct config_state
*cs
,
328 struct stream_header
*format
,
329 int nvec
, char **vec
) {
334 disorder_error(0, "%s:%d: wrong number of arguments", cs
->path
, cs
->line
);
337 if(xstrtol(&t
, p
, &p
, 0)) {
338 disorder_error(errno
, "%s:%d: converting bits-per-sample",
342 if(t
!= 8 && t
!= 16) {
343 disorder_error(0, "%s:%d: bad bits-per-sample (%ld)",
344 cs
->path
, cs
->line
, t
);
347 if(format
) format
->bits
= (uint8_t)t
;
349 case 'l': case 'L': t
= ENDIAN_LITTLE
; p
++; break;
350 case 'b': case 'B': t
= ENDIAN_BIG
; p
++; break;
351 default: t
= ENDIAN_NATIVE
; break;
353 if(format
) format
->endian
= (uint8_t)t
;
355 disorder_error(errno
, "%s:%d: expected `/' after bits-per-sample",
360 if(xstrtol(&t
, p
, &p
, 0)) {
361 disorder_error(errno
, "%s:%d: converting sample-rate", cs
->path
, cs
->line
);
364 if(t
< 1 || t
> INT_MAX
) {
365 disorder_error(0, "%s:%d: silly sample-rate (%ld)", cs
->path
, cs
->line
, t
);
368 if(format
) format
->rate
= t
;
370 disorder_error(0, "%s:%d: expected `/' after sample-rate",
375 if(xstrtol(&t
, p
, &p
, 0)) {
376 disorder_error(errno
, "%s:%d: converting channels", cs
->path
, cs
->line
);
380 disorder_error(0, "%s:%d: silly number (%ld) of channels",
381 cs
->path
, cs
->line
, t
);
384 if(format
) format
->channels
= (uint8_t)t
;
386 disorder_error(0, "%s:%d: junk after channels", cs
->path
, cs
->line
);
392 static int set_sample_format(const struct config_state
*cs
,
393 const struct conf
*whoami
,
394 int nvec
, char **vec
) {
395 return parse_sample_format(cs
, ADDRESS(cs
->config
, struct stream_header
),
399 static int set_namepart(const struct config_state
*cs
,
400 const struct conf
*whoami
,
401 int nvec
, char **vec
) {
402 struct namepartlist
*npl
= ADDRESS(cs
->config
, struct namepartlist
);
405 char errstr
[RXCERR_LEN
];
410 disorder_error(0, "%s:%d: namepart needs at least 3 arguments",
415 disorder_error(0, "%s:%d: namepart needs at most 5 arguments",
419 reflags
= nvec
>= 5 ?
regsub_flags(vec
[4]) : 0;
420 if(!(re
= regexp_compile(vec
[1], regsub_compile_options(reflags
),
421 errstr
, sizeof(errstr
), &erroffset
)))
423 disorder_error(0, "%s:%d: compiling regexp /%s/: %s (offset %zu)",
424 cs
->path
, cs
->line
, vec
[1], errstr
, erroffset
);
427 npl
->s
= xrealloc(npl
->s
, (npl
->n
+ 1) * sizeof (struct namepart
));
428 npl
->s
[npl
->n
].part
= xstrdup(vec
[0]);
429 npl
->s
[npl
->n
].re
= re
;
430 npl
->s
[npl
->n
].res
= xstrdup(vec
[1]);
431 npl
->s
[npl
->n
].replace
= xstrdup(vec
[2]);
432 npl
->s
[npl
->n
].context
= xstrdup(vec
[3]);
433 npl
->s
[npl
->n
].reflags
= reflags
;
435 /* XXX a bit of a bodge; relies on there being very few parts. */
436 for(n
= 0; (n
< cs
->config
->nparts
437 && strcmp(cs
->config
->parts
[n
], vec
[0])); ++n
)
439 if(n
>= cs
->config
->nparts
) {
440 cs
->config
->parts
= xrealloc(cs
->config
->parts
,
441 (cs
->config
->nparts
+ 1) * sizeof (char *));
442 cs
->config
->parts
[cs
->config
->nparts
++] = xstrdup(vec
[0]);
447 static int set_transform(const struct config_state
*cs
,
448 const struct conf
*whoami
,
449 int nvec
, char **vec
) {
450 struct transformlist
*tl
= ADDRESS(cs
->config
, struct transformlist
);
452 char errstr
[RXCERR_LEN
];
457 disorder_error(0, "%s:%d: transform needs at least 3 arguments",
462 disorder_error(0, "%s:%d: transform needs at most 5 arguments",
466 reflags
= (nvec
>= 5 ?
regsub_flags(vec
[4]) : 0);
467 if(!(re
= regexp_compile(vec
[1], regsub_compile_options(reflags
),
468 errstr
, sizeof(errstr
), &erroffset
)))
470 disorder_error(0, "%s:%d: compiling regexp /%s/: %s (offset %zu)",
471 cs
->path
, cs
->line
, vec
[1], errstr
, erroffset
);
474 tl
->t
= xrealloc(tl
->t
, (tl
->n
+ 1) * sizeof (struct namepart
));
475 tl
->t
[tl
->n
].type
= xstrdup(vec
[0]);
476 tl
->t
[tl
->n
].context
= xstrdup(vec
[3] ? vec
[3] : "*");
477 tl
->t
[tl
->n
].re
= re
;
478 tl
->t
[tl
->n
].replace
= xstrdup(vec
[2]);
479 tl
->t
[tl
->n
].flags
= reflags
;
484 static int set_rights(const struct config_state
*cs
,
485 const struct conf
*whoami
,
486 int nvec
, char **vec
) {
488 disorder_error(0, "%s:%d: '%s' requires one argument",
489 cs
->path
, cs
->line
, whoami
->name
);
492 if(parse_rights(vec
[0], 0, 1)) {
493 disorder_error(0, "%s:%d: invalid rights string '%s'",
494 cs
->path
, cs
->line
, vec
[0]);
497 return set_string(cs
, whoami
, nvec
, vec
);
500 static int set_netaddress(const struct config_state
*cs
,
501 const struct conf
*whoami
,
502 int nvec
, char **vec
) {
503 struct netaddress
*na
= ADDRESS(cs
->config
, struct netaddress
);
505 if(netaddress_parse(na
, nvec
, vec
)) {
506 disorder_error(0, "%s:%d: invalid network address", cs
->path
, cs
->line
);
514 static void free_none(struct config
attribute((unused
)) *c
,
515 const struct conf
attribute((unused
)) *whoami
) {
518 static void free_string(struct config
*c
,
519 const struct conf
*whoami
) {
520 xfree(VALUE(c
, char *));
521 VALUE(c
, char *) = 0;
524 static void free_stringlist(struct config
*c
,
525 const struct conf
*whoami
) {
527 struct stringlist
*sl
= ADDRESS(c
, struct stringlist
);
529 for(n
= 0; n
< sl
->n
; ++n
)
534 static void free_stringlistlist(struct config
*c
,
535 const struct conf
*whoami
) {
537 struct stringlistlist
*sll
= ADDRESS(c
, struct stringlistlist
);
538 struct stringlist
*sl
;
540 for(n
= 0; n
< sll
->n
; ++n
) {
542 for(m
= 0; m
< sl
->n
; ++m
)
549 static void free_collectionlist(struct config
*c
,
550 const struct conf
*whoami
) {
551 struct collectionlist
*cll
= ADDRESS(c
, struct collectionlist
);
552 struct collection
*cl
;
555 for(n
= 0; n
< cll
->n
; ++n
) {
564 static void free_namepartlist(struct config
*c
,
565 const struct conf
*whoami
) {
566 struct namepartlist
*npl
= ADDRESS(c
, struct namepartlist
);
570 for(n
= 0; n
< npl
->n
; ++n
) {
581 static void free_transformlist(struct config
*c
,
582 const struct conf
*whoami
) {
583 struct transformlist
*tl
= ADDRESS(c
, struct transformlist
);
587 for(n
= 0; n
< tl
->n
; ++n
) {
597 static void free_netaddress(struct config
*c
,
598 const struct conf
*whoami
) {
599 struct netaddress
*na
= ADDRESS(c
, struct netaddress
);
604 /* configuration types */
606 static const struct conftype
607 type_signal
= { set_signal
, free_none
},
608 type_collections
= { set_collections
, free_collectionlist
},
609 type_boolean
= { set_boolean
, free_none
},
610 type_string
= { set_string
, free_string
},
611 type_integer
= { set_integer
, free_none
},
612 type_stringlist_accum
= { set_stringlist_accum
, free_stringlistlist
},
613 type_string_accum
= { set_string_accum
, free_stringlist
},
614 type_sample_format
= { set_sample_format
, free_none
},
615 type_namepart
= { set_namepart
, free_namepartlist
},
616 type_transform
= { set_transform
, free_transformlist
},
617 type_netaddress
= { set_netaddress
, free_netaddress
},
618 type_rights
= { set_rights
, free_string
};
620 /* specific validation routine */
622 /** @brief Perform a test on a filename
623 * @param test Test function to call on mode bits
624 * @param what Type of file sought
626 * If @p test returns 0 then the file is not a @p what and an error
627 * is reported and -1 is returned.
629 #define VALIDATE_FILE(test, what) do { \
633 for(n = 0; n < nvec; ++n) { \
634 if(stat(vec[n], &sb) < 0) { \
635 disorder_error(errno, "%s:%d: %s", \
636 cs->path, cs->line, vec[n]); \
639 if(!test(sb.st_mode)) { \
640 disorder_error(0, "%s:%d: %s is not a %s", \
641 cs->path, cs->line, vec[n], what); \
647 /** @brief Validate an absolute path
648 * @param cs Configuration state
649 * @param nvec Length of (proposed) new value
650 * @param vec Elements of new value
651 * @return 0 on success, non-0 on error
653 static int validate_isabspath(const struct config_state
*cs
,
654 int nvec
, char **vec
) {
657 for(n
= 0; n
< nvec
; ++n
)
658 if(vec
[n
][0] != '/') {
659 disorder_error(0, "%s:%d: %s: not an absolute path",
660 cs
->path
, cs
->line
, vec
[n
]);
666 /** @brief Validate an existing directory
667 * @param cs Configuration state
668 * @param nvec Length of (proposed) new value
669 * @param vec Elements of new value
670 * @return 0 on success, non-0 on error
672 static int validate_isdir(const struct config_state
*cs
,
673 int nvec
, char **vec
) {
674 VALIDATE_FILE(S_ISDIR
, "directory");
678 /** @brief Validate an existing regular file
679 * @param cs Configuration state
680 * @param nvec Length of (proposed) new value
681 * @param vec Elements of new value
682 * @return 0 on success, non-0 on error
684 static int validate_isreg(const struct config_state
*cs
,
685 int nvec
, char **vec
) {
686 VALIDATE_FILE(S_ISREG
, "regular file");
690 /** @brief Validate a player pattern
691 * @param cs Configuration state
692 * @param nvec Length of (proposed) new value
693 * @param vec Elements of new value
694 * @return 0 on success, non-0 on error
696 static int validate_player(const struct config_state
*cs
,
698 char attribute((unused
)) **vec
) {
699 if(nvec
&& nvec
< 2) {
700 disorder_error(0, "%s:%d: should be at least 'player PATTERN MODULE'",
707 /** @brief Validate a track length pattern
708 * @param cs Configuration state
709 * @param nvec Length of (proposed) new value
710 * @param vec Elements of new value
711 * @return 0 on success, non-0 on error
713 static int validate_tracklength(const struct config_state
*cs
,
715 char attribute((unused
)) **vec
) {
716 if(nvec
&& nvec
< 2) {
717 disorder_error(0, "%s:%d: should be at least 'tracklength PATTERN MODULE'",
724 /** @brief Common code for validating integer values
725 * @param cs Configuration state
726 * @param nvec Length of (proposed) new value
727 * @param vec Elements of new value
728 * @param n_out Where to put the value
730 static int common_validate_integer(const struct config_state
*cs
,
731 int nvec
, char **vec
, long *n_out
) {
735 disorder_error(0, "%s:%d: missing argument", cs
->path
, cs
->line
);
739 disorder_error(0, "%s:%d: too many arguments", cs
->path
, cs
->line
);
742 if(xstrtol(n_out
, vec
[0], 0, 0)) {
743 disorder_error(0, "%s:%d: %s", cs
->path
, cs
->line
,
744 format_error(ec_errno
, errno
, errbuf
, sizeof errbuf
));
750 /** @brief Validate a non-negative (@c long) integer
751 * @param cs Configuration state
752 * @param nvec Length of (proposed) new value
753 * @param vec Elements of new value
754 * @return 0 on success, non-0 on error
756 static int validate_non_negative(const struct config_state
*cs
,
757 int nvec
, char **vec
) {
759 if(common_validate_integer(cs
, nvec
, vec
, &n
)) return -1;
761 disorder_error(0, "%s:%d: must not be negative", cs
->path
, cs
->line
);
767 /** @brief Validate a positive (@c long) integer
768 * @param cs Configuration state
769 * @param nvec Length of (proposed) new value
770 * @param vec Elements of new value
771 * @return 0 on success, non-0 on error
773 static int validate_positive(const struct config_state
*cs
,
774 int nvec
, char **vec
) {
776 if(common_validate_integer(cs
, nvec
, vec
, &n
)) return -1;
778 disorder_error(0, "%s:%d: must be positive", cs
->path
, cs
->line
);
785 /** @brief Validate a system username
786 * @param cs Configuration state
787 * @param nvec Length of (proposed) new value
788 * @param vec Elements of new value
789 * @return 0 on success, non-0 on error
791 static int validate_isauser(const struct config_state
*cs
,
792 int attribute((unused
)) nvec
,
794 if(!getpwnam(vec
[0])) {
795 disorder_error(0, "%s:%d: no such user as '%s'", cs
->path
, cs
->line
, vec
[0]);
802 /** @brief Validate a sample format string
803 * @param cs Configuration state
804 * @param nvec Length of (proposed) new value
805 * @param vec Elements of new value
806 * @return 0 on success, non-0 on error
808 static int validate_sample_format(const struct config_state
*cs
,
809 int attribute((unused
)) nvec
,
811 return parse_sample_format(cs
, 0, nvec
, vec
);
814 /** @brief Validate anything
815 * @param cs Configuration state
816 * @param nvec Length of (proposed) new value
817 * @param vec Elements of new value
820 static int validate_any(const struct config_state
attribute((unused
)) *cs
,
821 int attribute((unused
)) nvec
,
822 char attribute((unused
)) **vec
) {
826 /** @brief Validate a URL
827 * @param cs Configuration state
828 * @param nvec Length of (proposed) new value
829 * @param vec Elements of new value
830 * @return 0 on success, non-0 on error
834 static int validate_url(const struct config_state
attribute((unused
)) *cs
,
835 int attribute((unused
)) nvec
,
839 /* absoluteURI = scheme ":" ( hier_part | opaque_part )
840 scheme = alpha *( alpha | digit | "+" | "-" | "." ) */
842 n
= strspn(s
, ("abcdefghijklmnopqrstuvwxyz"
843 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
846 disorder_error(0, "%s:%d: invalid url '%s'", cs
->path
, cs
->line
, vec
[0]);
849 if(!strncmp(s
, "http:", 5)
850 || !strncmp(s
, "https:", 6)) {
852 /* we only do a rather cursory check */
853 if(strncmp(s
, "//", 2)) {
854 disorder_error(0, "%s:%d: invalid url '%s'", cs
->path
, cs
->line
, vec
[0]);
861 /** @brief Validate an alias pattern
862 * @param cs Configuration state
863 * @param nvec Length of (proposed) new value
864 * @param vec Elements of new value
865 * @return 0 on success, non-0 on error
867 static int validate_alias(const struct config_state
*cs
,
871 int in_brackets
= 0, c
;
874 disorder_error(0, "%s:%d: missing argument", cs
->path
, cs
->line
);
878 disorder_error(0, "%s:%d: too many arguments", cs
->path
, cs
->line
);
882 while((c
= (unsigned char)*s
++)) {
886 else if(!isalnum(c
)) {
887 disorder_error(0, "%s:%d: invalid part name in alias expansion in '%s'",
888 cs
->path
, cs
->line
, vec
[0]);
896 } else if(c
== '\\') {
897 if(!(c
= (unsigned char)*s
++)) {
898 disorder_error(0, "%s:%d: unterminated escape in alias expansion in '%s'",
899 cs
->path
, cs
->line
, vec
[0]);
901 } else if(c
!= '\\' && c
!= '{') {
902 disorder_error(0, "%s:%d: invalid escape in alias expansion in '%s'",
903 cs
->path
, cs
->line
, vec
[0]);
912 "%s:%d: unterminated part name in alias expansion in '%s'",
913 cs
->path
, cs
->line
, vec
[0]);
919 /** @brief Validate a hash algorithm name
920 * @param cs Configuration state
921 * @param nvec Length of (proposed) new value
922 * @param vec Elements of new value
923 * @return 0 on success, non-0 on error
925 static int validate_algo(const struct config_state
attribute((unused
)) *cs
,
929 disorder_error(0, "%s:%d: invalid algorithm specification", cs
->path
, cs
->line
);
932 if(!valid_authhash(vec
[0])) {
933 disorder_error(0, "%s:%d: unsuported algorithm '%s'", cs
->path
, cs
->line
, vec
[0]);
940 /** @brief Validate a playback backend name
941 * @param cs Configuration state
942 * @param nvec Length of (proposed) new value
943 * @param vec Elements of new value
944 * @return 0 on success, non-0 on error
946 static int validate_backend(const struct config_state
attribute((unused
)) *cs
,
951 disorder_error(0, "%s:%d: invalid sound API specification", cs
->path
, cs
->line
);
954 if(!strcmp(vec
[0], "network")) {
955 disorder_error(0, "'api network' is deprecated; use 'api rtp'");
958 if(config_uaudio_apis
) {
959 for(n
= 0; config_uaudio_apis
[n
]; ++n
)
960 if(!strcmp(vec
[0], config_uaudio_apis
[n
]->name
))
962 disorder_error(0, "%s:%d: unrecognized sound API '%s'", cs
->path
, cs
->line
, vec
[0]);
965 /* In non-server processes we have no idea what's valid */
970 /** @brief Validate a pause mode string
971 * @param cs Configuration state
972 * @param nvec Length of (proposed) new value
973 * @param vec Elements of new value
974 * @return 0 on success, non-0 on error
976 static int validate_pausemode(const struct config_state
attribute((unused
)) *cs
,
979 if(nvec
== 1 && (!strcmp(vec
[0], "silence") || !strcmp(vec
[0], "suspend")))
981 disorder_error(0, "%s:%d: invalid pause mode", cs
->path
, cs
->line
);
985 /** @brief Validate an MTU-discovery setting
986 * @param cs Configuration state
987 * @param nvec Length of (proposed) new value
988 * @param vec Elements of new value
989 * @return 0 on success, non-0 on error
991 static int validate_mtu_discovery(const struct config_state
attribute((unused
)) *cs
,
995 (!strcmp(vec
[0], "default") ||
996 !strcmp(vec
[0], "yes") ||
997 !strcmp(vec
[0], "no")))
999 disorder_error(0, "%s:%d: invalid MTU-discovery setting", cs
->path
, cs
->line
);
1003 /** @brief Validate a destination network address
1004 * @param cs Configuration state
1005 * @param nvec Length of (proposed) new value
1006 * @param vec Elements of new value
1007 * @return 0 on success, non-0 on error
1009 * By a destination address, it is meant that it must not be a wildcard
1012 static int validate_destaddr(const struct config_state
attribute((unused
)) *cs
,
1015 struct netaddress na
[1];
1017 if(netaddress_parse(na
, nvec
, vec
)) {
1018 disorder_error(0, "%s:%d: invalid network address", cs
->path
, cs
->line
);
1022 disorder_error(0, "%s:%d: destination address required", cs
->path
, cs
->line
);
1029 /** @brief Validate an internet address
1030 * @param cs Configuration state
1031 * @param nvec Length of (proposed) new value
1032 * @param vec Elements of new value
1033 * @return 0 on success, non-0 on error
1035 * By a destination address, it is meant that it must be either IPv4 or IPv6.
1037 static int validate_inetaddr(const struct config_state
*cs
,
1038 int nvec
, char **vec
) {
1039 struct netaddress na
[1];
1041 if(netaddress_parse(na
, nvec
, vec
)) {
1042 disorder_error(0, "%s:%d: invalid network address", cs
->path
, cs
->line
);
1046 case AF_INET
: case AF_INET6
: case AF_UNSPEC
: break;
1048 disorder_error(0, "%s:%d: must be an intenet address",
1049 cs
->path
, cs
->line
);
1055 /** @brief Item name and and offset */
1056 #define C(x) #x, offsetof(struct config, x)
1057 /** @brief Item name and and offset */
1058 #define C2(x,y) #x, offsetof(struct config, y)
1060 /** @brief All configuration items */
1061 static const struct conf conf
[] = {
1062 { C(alias
), &type_string
, validate_alias
},
1064 { C(api
), &type_string
, validate_backend
},
1066 { C(authorization_algorithm
), &type_string
, validate_algo
},
1067 { C(broadcast
), &type_netaddress
, validate_destaddr
},
1068 { C(broadcast_from
), &type_netaddress
, validate_any
},
1069 { C(channel
), &type_string
, validate_any
},
1070 { C(checkpoint_kbyte
), &type_integer
, validate_non_negative
},
1071 { C(checkpoint_min
), &type_integer
, validate_non_negative
},
1072 { C(collection
), &type_collections
, validate_any
},
1073 { C(connect
), &type_netaddress
, validate_destaddr
},
1074 { C(cookie_key_lifetime
), &type_integer
, validate_positive
},
1075 { C(cookie_login_lifetime
), &type_integer
, validate_positive
},
1076 { C(dbversion
), &type_integer
, validate_positive
},
1077 { C(default_rights
), &type_rights
, validate_any
},
1078 { C(device
), &type_string
, validate_any
},
1079 { C(history
), &type_integer
, validate_positive
},
1081 { C(home
), &type_string
, validate_isabspath
},
1083 { C(listen
), &type_netaddress
, validate_any
},
1084 { C(mail_sender
), &type_string
, validate_any
},
1085 { C(mixer
), &type_string
, validate_any
},
1086 { C(mount_rescan
), &type_boolean
, validate_any
},
1087 { C(multicast_loop
), &type_boolean
, validate_any
},
1088 { C(multicast_ttl
), &type_integer
, validate_non_negative
},
1089 { C(namepart
), &type_namepart
, validate_any
},
1090 { C(new_bias
), &type_integer
, validate_positive
},
1091 { C(new_bias_age
), &type_integer
, validate_positive
},
1092 { C(new_max
), &type_integer
, validate_positive
},
1093 { C2(nice
, nice_rescan
), &type_integer
, validate_non_negative
},
1094 { C(nice_rescan
), &type_integer
, validate_non_negative
},
1095 { C(nice_server
), &type_integer
, validate_any
},
1096 { C(nice_speaker
), &type_integer
, validate_any
},
1097 { C(noticed_history
), &type_integer
, validate_positive
},
1098 { C(password
), &type_string
, validate_any
},
1099 { C(pause_mode
), &type_string
, validate_pausemode
},
1100 { C(player
), &type_stringlist_accum
, validate_player
},
1101 { C(playlist_lock_timeout
), &type_integer
, validate_positive
},
1102 { C(playlist_max
) , &type_integer
, validate_positive
},
1103 { C(plugins
), &type_string_accum
, validate_isdir
},
1104 { C(queue_pad
), &type_integer
, validate_positive
},
1105 { C(refresh
), &type_integer
, validate_positive
},
1106 { C(refresh_min
), &type_integer
, validate_non_negative
},
1107 { C(reminder_interval
), &type_integer
, validate_positive
},
1108 { C(remote_userman
), &type_boolean
, validate_any
},
1109 { C(replay_min
), &type_integer
, validate_non_negative
},
1110 { C(rtp_always_request
), &type_boolean
, validate_any
},
1111 { C(rtp_delay_threshold
), &type_integer
, validate_positive
},
1112 { C(rtp_instance_name
), &type_string
, validate_any
},
1113 { C(rtp_max_payload
), &type_integer
, validate_positive
},
1114 { C(rtp_maxbuffer
), &type_integer
, validate_non_negative
},
1115 { C(rtp_minbuffer
), &type_integer
, validate_non_negative
},
1116 { C(rtp_mode
), &type_string
, validate_any
},
1117 { C(rtp_mtu_discovery
), &type_string
, validate_mtu_discovery
},
1118 { C(rtp_rcvbuf
), &type_integer
, validate_non_negative
},
1119 { C(rtp_request_address
), &type_netaddress
, validate_inetaddr
},
1120 { C(rtp_verbose
), &type_boolean
, validate_any
},
1121 { C(sample_format
), &type_sample_format
, validate_sample_format
},
1122 { C(scratch
), &type_string_accum
, validate_isreg
},
1124 { C(sendmail
), &type_string
, validate_isabspath
},
1126 { C(short_display
), &type_integer
, validate_positive
},
1127 { C(signal
), &type_signal
, validate_any
},
1128 { C(smtp_server
), &type_string
, validate_any
},
1129 { C(sox_generation
), &type_integer
, validate_non_negative
},
1131 { C2(speaker_backend
, api
), &type_string
, validate_backend
},
1133 { C(speaker_command
), &type_string
, validate_any
},
1134 { C(stopword
), &type_string_accum
, validate_any
},
1135 { C(templates
), &type_string_accum
, validate_isdir
},
1136 { C(tracklength
), &type_stringlist_accum
, validate_tracklength
},
1137 { C(transform
), &type_transform
, validate_any
},
1138 { C(url
), &type_string
, validate_url
},
1140 { C(user
), &type_string
, validate_isauser
},
1142 { C(username
), &type_string
, validate_any
},
1145 /** @brief Find a configuration item's definition by key */
1146 static const struct conf
*find(const char *key
) {
1149 if((n
= TABLE_FIND(conf
, name
, key
)) < 0)
1154 /** @brief Set a new configuration value
1155 * @param cs Configuration state
1156 * @param nvec Length of @p vec
1157 * @param vec Name and new value
1158 * @return 0 on success, non-0 on error.
1160 * @c vec[0] is the name, the rest is the value.
1162 static int config_set(const struct config_state
*cs
,
1163 int nvec
, char **vec
) {
1164 const struct conf
*which
;
1166 D(("config_set %s", vec
[0]));
1167 if(!(which
= find(vec
[0]))) {
1168 disorder_error(0, "%s:%d: unknown configuration key '%s'",
1169 cs
->path
, cs
->line
, vec
[0]);
1172 return (which
->validate(cs
, nvec
- 1, vec
+ 1)
1173 || which
->type
->set(cs
, which
, nvec
- 1, vec
+ 1));
1176 /** @brief Set a configuration item from parameters
1177 * @param cs Configuration state
1178 * @param which Item to set
1179 * @param ... Value as strings, terminated by (char *)NULL
1180 * @return 0 on success, non-0 on error
1182 static int config_set_args(const struct config_state
*cs
,
1183 const char *which
, ...) {
1190 vector_append(v
, (char *)which
);
1191 va_start(ap
, which
);
1192 while((s
= va_arg(ap
, char *)))
1193 vector_append(v
, s
);
1195 vector_terminate(v
);
1196 rc
= config_set(cs
, v
->nvec
, v
->vec
);
1201 /** @brief Error callback used by config_include()
1202 * @param msg Error message
1203 * @param u User data (@ref config_state)
1205 static void config_error(const char *msg
, void *u
) {
1206 const struct config_state
*cs
= u
;
1208 disorder_error(0, "%s:%d: %s", cs
->path
, cs
->line
, msg
);
1211 /** @brief Include a file by name
1212 * @param c Configuration to update
1213 * @param path Path to read
1214 * @return 0 on success, non-0 on error
1216 static int config_include(struct config
*c
, const char *path
) {
1218 char *buffer
, *inputbuffer
, **vec
;
1220 struct config_state cs
;
1225 D(("%s: reading configuration", path
));
1226 if(!(fp
= fopen(path
, "r"))) {
1227 disorder_error(errno
, "error opening %s", path
);
1230 while(!inputline(path
, fp
, &inputbuffer
, '\n')) {
1232 if(!(buffer
= mb2utf8(inputbuffer
))) {
1233 disorder_error(errno
, "%s:%d: cannot convert to UTF-8", cs
.path
, cs
.line
);
1239 if(!(vec
= split(buffer
, &n
, SPLIT_COMMENTS
|SPLIT_QUOTES
,
1240 config_error
, &cs
))) {
1246 /* 'include' is special-cased */
1247 if(!strcmp(vec
[0], "include")) {
1249 disorder_error(0, "%s:%d: must be 'include PATH'", cs
.path
, cs
.line
);
1252 config_include(c
, vec
[1]);
1254 ret
|= config_set(&cs
, n
, vec
);
1256 for(n
= 0; vec
[n
]; ++n
) xfree(vec
[n
]);
1261 disorder_error(errno
, "error reading %s", path
);
1268 /** @brief Default stopword setting */
1269 static const char *const default_stopwords
[] = {
1328 #define NDEFAULT_STOPWORDS (sizeof default_stopwords / sizeof *default_stopwords)
1330 /** @brief Default player patterns */
1331 static const char *const default_players
[] = {
1337 #define NDEFAULT_PLAYERS (sizeof default_players / sizeof *default_players)
1339 /** @brief Make a new default configuration
1340 * @return New configuration
1342 static struct config
*config_default(void) {
1343 struct config
*c
= xmalloc(sizeof *c
);
1345 const char *logname
;
1348 struct config_state cs
;
1351 cs
.path
= "<internal>";
1354 /* Strings had better be xstrdup'd as they will get freed at some point. */
1357 c
->home
= xstrdup(pkgstatedir
);
1362 DWORD bufsize
= sizeof buffer
;
1363 if(!GetUserNameA(buffer
, &bufsize
))
1364 disorder_fatal(0, "cannot determine our username");
1365 c
->username
= xstrdup(buffer
);
1368 if(!(pw
= getpwuid(getuid())))
1369 disorder_fatal(0, "cannot determine our username");
1370 logname
= pw
->pw_name
;
1371 c
->username
= xstrdup(logname
);
1376 c
->signal
= SIGKILL
;
1378 c
->signal
= SIGTERM
;
1380 c
->alias
= xstrdup("{/artist}{/album}{/title}{ext}");
1381 c
->device
= xstrdup("default");
1382 c
->nice_rescan
= 10;
1383 c
->speaker_command
= 0;
1384 c
->sample_format
.bits
= 16;
1385 c
->sample_format
.rate
= 44100;
1386 c
->sample_format
.channels
= 2;
1387 c
->sample_format
.endian
= ENDIAN_NATIVE
;
1389 c
->replay_min
= 8 * 3600;
1391 c
->multicast_ttl
= 1;
1392 c
->multicast_loop
= 1;
1393 c
->authorization_algorithm
= xstrdup("sha1");
1394 c
->noticed_history
= 31;
1395 c
->short_display
= 32;
1399 c
->cookie_login_lifetime
= 86400;
1400 c
->cookie_key_lifetime
= 86400 * 7;
1402 if(sendmail_binary
[0] && strcmp(sendmail_binary
, "none"))
1403 c
->sendmail
= xstrdup(sendmail_binary
);
1405 c
->smtp_server
= xstrdup("127.0.0.1");
1407 c
->reminder_interval
= 600; /* 10m */
1408 c
->new_bias_age
= 7 * 86400; /* 1 week */
1409 c
->new_bias
= 4500000; /* 50 times the base weight */
1410 c
->sox_generation
= DEFAULT_SOX_GENERATION
;
1411 c
->playlist_max
= INT_MAX
; /* effectively no limit */
1412 c
->playlist_lock_timeout
= 10; /* 10s */
1413 c
->mount_rescan
= 1;
1414 /* Default stopwords */
1415 if(config_set(&cs
, (int)NDEFAULT_STOPWORDS
, (char **)default_stopwords
))
1417 /* Default player configuration */
1418 for(n
= 0; n
< NDEFAULT_PLAYERS
; ++n
) {
1419 if(config_set_args(&cs
, "player",
1420 default_players
[n
], "execraw", "disorder-decode", (char *)0))
1422 if(config_set_args(&cs
, "tracklength",
1423 default_players
[n
], "disorder-tracklength", (char *)0))
1426 c
->broadcast
.af
= -1;
1427 c
->broadcast_from
.af
= -1;
1430 c
->rtp_mode
= xstrdup("auto");
1431 c
->rtp_max_payload
= -1;
1432 c
->rtp_mtu_discovery
= xstrdup("default");
1437 /** @brief Construct a filename
1438 * @param c Configuration
1439 * @param name Base filename
1440 * @return Full filename
1442 * Usually use config_get_file() instead.
1444 char *config_get_file2(struct config
*c
, const char *name
) {
1447 byte_xasprintf(&s
, "%s/%s", c
->home
, name
);
1452 /** @brief Set the default configuration file */
1453 static void set_configfile(void) {
1456 byte_xasprintf(&configfile
, "%s/config", pkgconfdir
);
1460 /** @brief Free a configuration object
1461 * @param c Configuration to free
1463 * @p c is indeterminate after this function is called.
1465 void config_free(struct config
*c
) {
1469 for(n
= 0; n
< (int)(sizeof conf
/ sizeof *conf
); ++n
)
1470 conf
[n
].type
->free(c
, &conf
[n
]);
1471 for(n
= 0; n
< c
->nparts
; ++n
)
1478 /** @brief Set post-parse defaults
1479 * @param c Configuration to update
1480 * @param server True when running in the server
1482 * If @p server is set then certain parts of the configuration are more
1483 * strictly validated.
1485 static void config_postdefaults(struct config
*c
,
1487 struct config_state cs
;
1488 const struct conf
*whoami
;
1491 static const char *namepart
[][4] = {
1492 { "title", "/([0-9]+ *[-:]? *)?([^/]+)\\.[a-zA-Z0-9]+$", "$2", "display" },
1493 { "title", "/([^/]+)\\.[a-zA-Z0-9]+$", "$1", "sort" },
1494 { "album", "/([^/]+)/[^/]+$", "$1", "*" },
1495 { "artist", "/([^/]+)/[^/]+/[^/]+$", "$1", "*" },
1496 { "ext", "(\\.[a-zA-Z0-9]+)$", "$1", "*" },
1498 #define NNAMEPART (int)(sizeof namepart / sizeof *namepart)
1500 static const char *transform
[][5] = {
1501 { "track", "^.*/([0-9]+ *[-:]? *)?([^/]+)\\.[a-zA-Z0-9]+$", "$2", "display", "" },
1502 { "track", "^.*/([^/]+)\\.[a-zA-Z0-9]+$", "$1", "sort", "" },
1503 { "dir", "^.*/([^/]+)$", "$1", "*", "" },
1504 { "dir", "^(the) ([^/]*)", "$2, $1", "sort", "i", },
1505 { "dir", "[[:punct:]]", "", "sort", "g", }
1507 #define NTRANSFORM (int)(sizeof transform / sizeof *transform)
1509 cs
.path
= "<internal>";
1512 if(!c
->namepart
.n
) {
1513 whoami
= find("namepart");
1514 for(n
= 0; n
< NNAMEPART
; ++n
)
1515 set_namepart(&cs
, whoami
, 4, (char **)namepart
[n
]);
1517 if(!c
->transform
.n
) {
1518 whoami
= find("transform");
1519 for(n
= 0; n
< NTRANSFORM
; ++n
)
1520 set_transform(&cs
, whoami
, 5, (char **)transform
[n
]);
1523 if(c
->speaker_command
)
1524 c
->api
= xstrdup("command");
1525 else if(c
->broadcast
.af
!= -1)
1526 c
->api
= xstrdup("rtp");
1528 else if(config_uaudio_apis
)
1529 c
->api
= xstrdup(uaudio_default(config_uaudio_apis
,
1530 UAUDIO_API_SERVER
)->name
);
1533 c
->api
= xstrdup("<none>");
1535 if(!strcmp(c
->api
, "network"))
1536 c
->api
= xstrdup("rtp");
1538 if(!strcmp(c
->api
, "command") && !c
->speaker_command
)
1539 disorder_fatal(0, "'api command' but speaker_command is not set");
1540 if((!strcmp(c
->api
, "rtp")) &&
1541 c
->broadcast
.af
== -1 && strcmp(c
->rtp_mode
, "request"))
1542 disorder_fatal(0, "'api rtp' but broadcast is not set "
1543 "and mode is not not 'request'");
1545 /* Override sample format */
1546 if(!strcmp(c
->api
, "rtp")) {
1547 c
->sample_format
.rate
= 44100;
1548 c
->sample_format
.channels
= 2;
1549 c
->sample_format
.bits
= 16;
1550 c
->sample_format
.endian
= ENDIAN_NATIVE
;
1552 if(!strcmp(c
->api
, "coreaudio")) {
1553 c
->sample_format
.rate
= 44100;
1554 c
->sample_format
.channels
= 2;
1555 c
->sample_format
.bits
= 16;
1556 c
->sample_format
.endian
= ENDIAN_NATIVE
;
1558 if(!c
->default_rights
) {
1559 rights_type r
= RIGHTS__MASK
& ~(RIGHT_ADMIN
|RIGHT_REGISTER
1561 |RIGHT_SCRATCH__MASK
1562 |RIGHT_REMOVE__MASK
);
1563 r
|= RIGHT_SCRATCH_ANY
|RIGHT_MOVE_ANY
|RIGHT_REMOVE_ANY
;
1564 c
->default_rights
= rights_string(r
);
1568 /** @brief (Re-)read the config file
1569 * @param server If set, do extra checking
1570 * @param oldconfig Old configuration for compatibility check
1571 * @return 0 on success, non-0 on error
1573 * If @p oldconfig is set, then certain compatibility checks are done between
1574 * the old and new configurations.
1576 int config_read(int server
,
1577 const struct config
*oldconfig
) {
1580 struct passwd
*pw
= NULL
;
1583 c
= config_default();
1584 /* standalone client installs might not have a global config file */
1586 if(access(configfile
, F_OK
) == 0)
1587 if(config_include(c
, configfile
))
1589 /* if we can read the private config file, do */
1590 if((privconf
= config_private())
1591 && access(privconf
, R_OK
) == 0
1592 && config_include(c
, privconf
))
1595 /* if there's a per-user system config file for this user, read it */
1596 if(config_per_user
) {
1598 if(!(pw
= getpwuid(getuid())))
1599 disorder_fatal(0, "cannot determine our username");
1600 if((privconf
= config_usersysconf(pw
))
1601 && access(privconf
, F_OK
) == 0
1602 && config_include(c
, privconf
))
1606 /* if we have a password file, read it */
1607 if((privconf
= config_userconf())
1608 && access(privconf
, F_OK
) == 0
1609 && config_include(c
, privconf
))
1613 /* install default namepart and transform settings */
1614 config_postdefaults(c
, server
);
1618 if(strcmp(c
->home
, oldconfig
->home
)) {
1619 disorder_error(0, "'home' cannot be changed without a restart");
1623 if(strcmp(c
->alias
, oldconfig
->alias
)) {
1624 disorder_error(0, "'alias' cannot be changed without a restart");
1627 if(strcmp(c
->user
, oldconfig
->user
)) {
1628 disorder_error(0, "'user' cannot be changed without a restart");
1631 if(c
->nice_speaker
!= oldconfig
->nice_speaker
) {
1632 disorder_error(0, "'nice_speaker' cannot be changed without a restart");
1633 /* ...but we accept the new config anyway */
1635 if(c
->nice_server
!= oldconfig
->nice_server
) {
1636 disorder_error(0, "'nice_server' cannot be changed without a restart");
1637 /* ...but we accept the new config anyway */
1639 if(namepartlist_compare(&c
->namepart
, &oldconfig
->namepart
)) {
1640 disorder_error(0, "'namepart' settings cannot be changed without a restart");
1643 if(stringlist_compare(&c
->stopword
, &oldconfig
->stopword
)) {
1644 disorder_error(0, "'stopword' settings cannot be changed without a restart");
1648 disorder_error(0, "not installing incompatible new configuration");
1652 /* everything is good so we shall use the new config */
1653 config_free(config
);
1654 /* warn about obsolete directives */
1659 /** @brief Return the path to the private configuration file */
1660 char *config_private(void) {
1667 byte_xasprintf(&s
, "%s.private", configfile
);
1672 /** @brief Return the path to user's personal configuration file */
1673 char *config_userconf(void) {
1674 return profile_filename("passwd");
1678 /** @brief Return the path to user-specific system configuration */
1679 char *config_usersysconf(const struct passwd
*pw
) {
1683 if(!strchr(pw
->pw_name
, '/')) {
1684 byte_xasprintf(&s
, "%s.%s", configfile
, pw
->pw_name
);
1690 /** @brief Get a filename within the home directory
1691 * @param name Relative name
1694 char *config_get_file(const char *name
) {
1695 return config_get_file2(config
, name
);
1699 /** @brief Order two stringlists
1700 * @param a First stringlist
1701 * @param b Second stringlist
1702 * @return <0, 0 or >0 if a<b, a=b or a>b
1704 static int stringlist_compare(const struct stringlist
*a
,
1705 const struct stringlist
*b
) {
1708 while(n
< a
->n
&& n
< b
->n
) {
1709 if((c
= strcmp(a
->s
[n
], b
->s
[n
])))
1715 else if(a
->n
> b
->n
)
1721 /** @brief Order two namepart definitions
1722 * @param a First namepart definition
1723 * @param b Second namepart definition
1724 * @return <0, 0 or >0 if a<b, a=b or a>b
1726 static int namepart_compare(const struct namepart
*a
,
1727 const struct namepart
*b
) {
1730 if((c
= strcmp(a
->part
, b
->part
)))
1732 if((c
= strcmp(a
->res
, b
->res
)))
1734 if((c
= strcmp(a
->replace
, b
->replace
)))
1736 if((c
= strcmp(a
->context
, b
->context
)))
1738 if(a
->reflags
> b
->reflags
)
1740 if(a
->reflags
< b
->reflags
)
1745 /** @brief Order two lists of namepart definitions
1746 * @param a First list of namepart definitions
1747 * @param b Second list of namepart definitions
1748 * @return <0, 0 or >0 if a<b, a=b or a>b
1750 static int namepartlist_compare(const struct namepartlist
*a
,
1751 const struct namepartlist
*b
) {
1754 while(n
< a
->n
&& n
< b
->n
) {
1755 if((c
= namepart_compare(&a
->s
[n
], &b
->s
[n
])))
1761 else if(a
->n
< b
->n
)
1767 /** @brief Verify configuration table.
1768 * @return The number of problems found
1770 int config_verify(void) {
1773 for(n
= 1; n
< sizeof conf
/ sizeof *conf
; ++n
)
1774 if(strcmp(conf
[n
-1].name
, conf
[n
].name
) >= 0) {
1775 fprintf(stderr
, "%s >= %s\n", conf
[n
-1].name
, conf
[n
].name
);