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-rw-r--r--src/util/configuration.c848
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diff --git a/src/util/configuration.c b/src/util/configuration.c
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1/*
2 This file is part of GNUnet.
3 (C) 2006, 2007, 2008, 2009 Christian Grothoff (and other contributing authors)
4
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 2, or (at your
8 option) any later version.
9
10 GNUnet 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.
14
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
19*/
20
21/**
22 * @file src/util/configuration.c
23 * @brief configuration management
24 *
25 * @author Christian Grothoff
26 */
27
28#include "platform.h"
29#include "gnunet_common.h"
30#include "gnunet_configuration_lib.h"
31#include "gnunet_crypto_lib.h"
32#include "gnunet_disk_lib.h"
33#include "gnunet_os_lib.h"
34#include "gnunet_strings_lib.h"
35
36/**
37 * @brief configuration entry
38 */
39struct ConfigEntry
40{
41
42 /**
43 * This is a linked list.
44 */
45 struct ConfigEntry *next;
46
47 /**
48 * key for this entry
49 */
50 char *key;
51
52 /**
53 * current, commited value
54 */
55 char *val;
56};
57
58/**
59 * @brief configuration section
60 */
61struct ConfigSection
62{
63 /**
64 * This is a linked list.
65 */
66 struct ConfigSection *next;
67
68 /**
69 * entries in the section
70 */
71 struct ConfigEntry *entries;
72
73 /**
74 * name of the section
75 */
76 char *name;
77};
78
79/**
80 * @brief configuration data
81 */
82struct GNUNET_CONFIGURATION_Handle
83{
84 /**
85 * Configuration sections.
86 */
87 struct ConfigSection *sections;
88
89 /**
90 * Modification indication since last save
91 * GNUNET_NO if clean, GNUNET_YES if dirty,
92 * GNUNET_SYSERR on error (i.e. last save failed)
93 */
94 int dirty;
95
96};
97
98/**
99 * Create a GNUNET_CONFIGURATION_Configuration.
100 */
101struct GNUNET_CONFIGURATION_Handle *
102GNUNET_CONFIGURATION_create ()
103{
104 return GNUNET_malloc (sizeof (struct GNUNET_CONFIGURATION_Handle));
105}
106
107void
108GNUNET_CONFIGURATION_destroy (struct GNUNET_CONFIGURATION_Handle *cfg)
109{
110 struct ConfigSection *sec;
111 struct ConfigEntry *ent;
112
113 while (NULL != (sec = cfg->sections))
114 {
115 cfg->sections = sec->next;
116 while (NULL != (ent = sec->entries))
117 {
118 sec->entries = ent->next;
119 GNUNET_free (ent->key);
120 GNUNET_free_non_null (ent->val);
121 GNUNET_free (ent);
122 }
123 GNUNET_free (sec->name);
124 GNUNET_free (sec);
125 }
126 GNUNET_free (cfg);
127}
128
129int
130GNUNET_CONFIGURATION_parse (struct GNUNET_CONFIGURATION_Handle *cfg,
131 const char *filename)
132{
133 int dirty;
134 char line[256];
135 char tag[64];
136 char value[192];
137 FILE *fp;
138 unsigned int nr;
139 int i;
140 int emptyline;
141 int ret;
142 char *section;
143 char *fn;
144
145 fn = GNUNET_STRINGS_filename_expand (filename);
146 dirty = cfg->dirty; /* back up value! */
147 if (NULL == (fp = FOPEN (fn, "r")))
148 {
149 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "fopen", fn);
150 GNUNET_free (fn);
151 return GNUNET_SYSERR;
152 }
153 GNUNET_free (fn);
154 ret = GNUNET_OK;
155 section = GNUNET_strdup ("");
156 memset (line, 0, 256);
157 nr = 0;
158 while (NULL != fgets (line, 255, fp))
159 {
160 nr++;
161 for (i = 0; i < 255; i++)
162 if (line[i] == '\t')
163 line[i] = ' ';
164 if (line[0] == '\n' || line[0] == '#' || line[0] == '%' ||
165 line[0] == '\r')
166 continue;
167 emptyline = 1;
168 for (i = 0; (i < 255 && line[i] != 0); i++)
169 if (line[i] != ' ' && line[i] != '\n' && line[i] != '\r')
170 emptyline = 0;
171 if (emptyline == 1)
172 continue;
173 /* remove tailing whitespace */
174 for (i = strlen (line) - 1; (i >= 0) && (isspace (line[i])); i--)
175 line[i] = '\0';
176 if (1 == sscanf (line, "@INLINE@ %191[^\n]", value))
177 {
178 /* @INLINE@ value */
179 if (0 != GNUNET_CONFIGURATION_parse (cfg, value))
180 ret = GNUNET_SYSERR; /* failed to parse included config */
181 }
182 else if (1 == sscanf (line, "[%99[^]]]", value))
183 {
184 /* [value] */
185 GNUNET_free (section);
186 section = GNUNET_strdup (value);
187 }
188 else if (2 == sscanf (line, " %63[^= ] = %191[^\n]", tag, value))
189 {
190 /* tag = value */
191 /* Strip LF */
192 i = strlen (value) - 1;
193 while ((i >= 0) && (isspace (value[i])))
194 value[i--] = '\0';
195 /* remove quotes */
196 i = 0;
197 if (value[0] == '"')
198 {
199 i = 1;
200 while ((value[i] != '\0') && (value[i] != '"'))
201 i++;
202 if (value[i] == '"')
203 {
204 value[i] = '\0';
205 i = 1;
206 }
207 else
208 i = 0;
209 }
210 GNUNET_CONFIGURATION_set_value_string (cfg,
211 section, tag, &value[i]);
212 }
213 else if (1 == sscanf (line, " %63[^= ] =[^\n]", tag))
214 {
215 /* tag = */
216 GNUNET_CONFIGURATION_set_value_string (cfg, section, tag, "");
217 }
218 else
219 {
220 /* parse error */
221 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
222 _
223 ("Syntax error in configuration file `%s' at line %u.\n"),
224 filename, nr);
225 ret = GNUNET_SYSERR;
226 break;
227 }
228 }
229 GNUNET_assert (0 == fclose (fp));
230 /* restore dirty flag - anything we set in the meantime
231 came from disk */
232 cfg->dirty = dirty;
233 GNUNET_free (section);
234 return ret;
235}
236
237int
238GNUNET_CONFIGURATION_test_dirty (struct GNUNET_CONFIGURATION_Handle *cfg)
239{
240 return cfg->dirty;
241}
242
243int
244GNUNET_CONFIGURATION_write (struct GNUNET_CONFIGURATION_Handle *data,
245 const char *filename)
246{
247 struct ConfigSection *sec;
248 struct ConfigEntry *ent;
249 FILE *fp;
250 int error;
251 char *fn;
252 char *val;
253 char *pos;
254
255 fn = GNUNET_STRINGS_filename_expand (filename);
256 GNUNET_DISK_directory_create_for_file (fn);
257 if (NULL == (fp = FOPEN (fn, "w")))
258 {
259 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "fopen", fn);
260 GNUNET_free (fn);
261 return GNUNET_SYSERR;
262 }
263 GNUNET_free (fn);
264 error = 0;
265 sec = data->sections;
266 while (sec != NULL)
267 {
268 if (0 > fprintf (fp, "[%s]\n", sec->name))
269 {
270 error = 1;
271 break;
272 }
273 ent = sec->entries;
274 while (ent != NULL)
275 {
276 if (ent->val != NULL)
277 {
278 val = GNUNET_malloc (strlen (ent->val) * 2 + 1);
279 strcpy (val, ent->val);
280 while (NULL != (pos = strstr (val, "\n")))
281 {
282 memmove (&pos[2], &pos[1], strlen (&pos[1]));
283 pos[0] = '\\';
284 pos[1] = 'n';
285 }
286 if (0 > fprintf (fp, "%s = %s\n", ent->key, val))
287 {
288 error = 1;
289 GNUNET_free (val);
290 break;
291 }
292 GNUNET_free (val);
293 }
294 ent = ent->next;
295 }
296 if (error != 0)
297 break;
298 if (0 > fprintf (fp, "\n"))
299 {
300 error = 1;
301 break;
302 }
303 sec = sec->next;
304 }
305 if (error != 0)
306 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "fprintf", filename);
307 GNUNET_assert (0 == fclose (fp));
308 if (error != 0)
309 {
310 data->dirty = GNUNET_SYSERR; /* last write failed */
311 return GNUNET_SYSERR;
312 }
313 data->dirty = GNUNET_NO; /* last write succeeded */
314 return GNUNET_OK;
315}
316
317
318static struct ConfigSection *
319findSection (struct GNUNET_CONFIGURATION_Handle *data, const char *section)
320{
321 struct ConfigSection *pos;
322
323 pos = data->sections;
324 while ((pos != NULL) && (0 != strcasecmp (section, pos->name)))
325 pos = pos->next;
326 return pos;
327}
328
329
330static struct ConfigEntry *
331findEntry (struct GNUNET_CONFIGURATION_Handle *data,
332 const char *section, const char *key)
333{
334 struct ConfigSection *sec;
335 struct ConfigEntry *pos;
336
337 sec = findSection (data, section);
338 if (sec == NULL)
339 return NULL;
340 pos = sec->entries;
341 while ((pos != NULL) && (0 != strcasecmp (key, pos->key)))
342 pos = pos->next;
343 return pos;
344}
345
346void
347GNUNET_CONFIGURATION_set_value_string (struct GNUNET_CONFIGURATION_Handle
348 *data,
349 const char *section,
350 const char *option, const char *value)
351{
352 struct ConfigSection *sec;
353 struct ConfigEntry *e;
354
355 e = findEntry (data, section, option);
356 if (e != NULL)
357 {
358 GNUNET_free_non_null (e->val);
359 e->val = GNUNET_strdup (value);
360 return;
361 }
362 sec = findSection (data, section);
363 if (sec == NULL)
364 {
365 sec = GNUNET_malloc (sizeof (struct ConfigSection));
366 sec->name = GNUNET_strdup (section);
367 sec->next = data->sections;
368 data->sections = sec;
369 }
370 e = GNUNET_malloc (sizeof (struct ConfigEntry));
371 e->key = GNUNET_strdup (option);
372 e->val = GNUNET_strdup (value);
373 e->next = sec->entries;
374 sec->entries = e;
375}
376
377void
378GNUNET_CONFIGURATION_set_value_number (struct GNUNET_CONFIGURATION_Handle
379 *cfg, const char *section,
380 const char *option,
381 unsigned long long number)
382{
383 char s[64];
384 GNUNET_snprintf (s, 64, "%llu", number);
385 GNUNET_CONFIGURATION_set_value_string (cfg, section, option, s);
386}
387
388int
389GNUNET_CONFIGURATION_get_value_number (struct GNUNET_CONFIGURATION_Handle
390 *cfg, const char *section,
391 const char *option,
392 unsigned long long *number)
393{
394 struct ConfigEntry *e;
395
396 e = findEntry (cfg, section, option);
397 if (e == NULL)
398 return GNUNET_SYSERR;
399 if (1 != SSCANF (e->val, "%llu", number))
400 return GNUNET_SYSERR;
401 return GNUNET_OK;
402}
403
404int
405GNUNET_CONFIGURATION_get_value_string (struct GNUNET_CONFIGURATION_Handle
406 *cfg, const char *section,
407 const char *option, char **value)
408{
409 struct ConfigEntry *e;
410
411 e = findEntry (cfg, section, option);
412 if ((e == NULL) || (e->val == NULL))
413 {
414 *value = NULL;
415 return GNUNET_SYSERR;
416 }
417 *value = GNUNET_strdup (e->val);
418 return GNUNET_OK;
419}
420
421int
422GNUNET_CONFIGURATION_get_value_choice (struct GNUNET_CONFIGURATION_Handle
423 *cfg, const char *section,
424 const char *option,
425 const char **choices,
426 const char **value)
427{
428 struct ConfigEntry *e;
429 int i;
430
431 e = findEntry (cfg, section, option);
432 if (e == NULL)
433 return GNUNET_SYSERR;
434 i = 0;
435 while (choices[i] != NULL)
436 {
437 if (0 == strcasecmp (choices[i], e->val))
438 break;
439 i++;
440 }
441 if (choices[i] == NULL)
442 {
443 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
444 _("Configuration value '%s' for '%s'"
445 " in section '%s' is not in set of legal choices\n"),
446 e->val, option, section);
447 return GNUNET_SYSERR;
448 }
449 *value = choices[i];
450 return GNUNET_OK;
451}
452
453/**
454 * Test if we have a value for a particular option
455 * @return GNUNET_YES if so, GNUNET_NO if not.
456 */
457int
458GNUNET_CONFIGURATION_have_value (struct GNUNET_CONFIGURATION_Handle *cfg,
459 const char *section, const char *option)
460{
461 struct ConfigEntry *e;
462 if ((NULL == (e = findEntry (cfg, section, option))) || (e->val == NULL))
463 return GNUNET_NO;
464 return GNUNET_YES;
465}
466
467/**
468 * Expand an expression of the form "$FOO/BAR" to "DIRECTORY/BAR"
469 * where either in the "PATHS" section or the environtment
470 * "FOO" is set to "DIRECTORY".
471 *
472 * @param old string to $-expand (will be freed!)
473 * @return $-expanded string
474 */
475char *
476GNUNET_CONFIGURATION_expand_dollar (struct GNUNET_CONFIGURATION_Handle *cfg,
477 char *orig)
478{
479 int i;
480 char *prefix;
481 char *result;
482 const char *post;
483 const char *env;
484
485 if (orig[0] != '$')
486 return orig;
487 i = 0;
488 while ((orig[i] != '/') && (orig[i] != '\\') && (orig[i] != '\0'))
489 i++;
490 if (orig[i] == '\0')
491 {
492 post = "";
493 }
494 else
495 {
496 orig[i] = '\0';
497 post = &orig[i + 1];
498 }
499 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_string (cfg,
500 "PATHS",
501 &orig[1], &prefix))
502 {
503 if (NULL == (env = getenv (&orig[1])))
504 {
505 orig[i] = DIR_SEPARATOR;
506 return orig;
507 }
508 prefix = GNUNET_strdup (env);
509 }
510 result = GNUNET_malloc (strlen (prefix) + strlen (post) + 2);
511 strcpy (result, prefix);
512 if ((strlen (prefix) == 0) ||
513 ((prefix[strlen (prefix) - 1] != DIR_SEPARATOR) && (strlen (post) > 0)))
514 strcat (result, DIR_SEPARATOR_STR);
515 strcat (result, post);
516 GNUNET_free (prefix);
517 GNUNET_free (orig);
518 return result;
519}
520
521/**
522 * Get a configuration value that should be a string.
523 * @param value will be set to a freshly allocated configuration
524 * value, or NULL if option is not specified
525 * @return GNUNET_OK on success, GNUNET_SYSERR on error
526 */
527int
528GNUNET_CONFIGURATION_get_value_filename (struct GNUNET_CONFIGURATION_Handle
529 *data, const char *section,
530 const char *option, char **value)
531{
532 int ret;
533 char *tmp;
534
535 tmp = NULL;
536 ret = GNUNET_CONFIGURATION_get_value_string (data, section, option, &tmp);
537 if (ret == GNUNET_SYSERR)
538 return ret;
539 if (tmp != NULL)
540 {
541 tmp = GNUNET_CONFIGURATION_expand_dollar (data, tmp);
542 *value = GNUNET_STRINGS_filename_expand (tmp);
543 GNUNET_free (tmp);
544 }
545 else
546 {
547 *value = NULL;
548 }
549 return ret;
550}
551
552/**
553 * Get a configuration value that should be in a set of
554 * "GNUNET_YES" or "GNUNET_NO".
555 *
556 * @return GNUNET_YES, GNUNET_NO or GNUNET_SYSERR
557 */
558int
559GNUNET_CONFIGURATION_get_value_yesno (struct GNUNET_CONFIGURATION_Handle *cfg,
560 const char *section, const char *option)
561{
562 static const char *yesno[] = { "YES", "NO", NULL };
563 const char *val;
564 int ret;
565
566 ret = GNUNET_CONFIGURATION_get_value_choice (cfg,
567 section, option, yesno, &val);
568 if (ret == GNUNET_SYSERR)
569 return ret;
570 if (val == yesno[0])
571 return GNUNET_YES;
572 return GNUNET_NO;
573}
574
575
576/**
577 * Iterate over the set of filenames stored in a configuration value.
578 *
579 * @return number of filenames iterated over, -1 on error
580 */
581int
582GNUNET_CONFIGURATION_iterate_value_filenames (struct
583 GNUNET_CONFIGURATION_Handle
584 *cfg, const char *section,
585 const char *option,
586 GNUNET_FileNameCallback cb,
587 void *cls)
588{
589 char *list;
590 char *pos;
591 char *end;
592 char old;
593 int ret;
594
595 if (GNUNET_OK !=
596 GNUNET_CONFIGURATION_get_value_string (cfg, section, option, &list))
597 return 0;
598 GNUNET_assert (list != NULL);
599 ret = 0;
600 pos = list;
601 while (1)
602 {
603 while (pos[0] == ' ')
604 pos++;
605 if (strlen (pos) == 0)
606 break;
607 end = pos + 1;
608 while ((end[0] != ' ') && (end[0] != '\0'))
609 {
610 if (end[0] == '\\')
611 {
612 switch (end[1])
613 {
614 case '\\':
615 case ' ':
616 memmove (end, &end[1], strlen (&end[1]) + 1);
617 case '\0':
618 /* illegal, but just keep it */
619 break;
620 default:
621 /* illegal, but just ignore that there was a '/' */
622 break;
623 }
624 }
625 end++;
626 }
627 old = end[0];
628 end[0] = '\0';
629 if (strlen (pos) > 0)
630 {
631 ret++;
632 if ((cb != NULL) && (GNUNET_OK != cb (cls, pos)))
633 {
634 ret = GNUNET_SYSERR;
635 break;
636 }
637 }
638 if (old == '\0')
639 break;
640 pos = end + 1;
641 }
642 GNUNET_free (list);
643 return ret;
644}
645
646static char *
647escape_name (const char *value)
648{
649 char *escaped;
650 const char *rpos;
651 char *wpos;
652
653 escaped = GNUNET_malloc (strlen (value) * 2 + 1);
654 memset (escaped, 0, strlen (value) * 2 + 1);
655 rpos = value;
656 wpos = escaped;
657 while (rpos[0] != '\0')
658 {
659 switch (rpos[0])
660 {
661 case '\\':
662 case ' ':
663 wpos[0] = '\\';
664 wpos[1] = rpos[0];
665 wpos += 2;
666 break;
667 default:
668 wpos[0] = rpos[0];
669 wpos++;
670 }
671 rpos++;
672 }
673 return escaped;
674}
675
676static int
677test_match (void *cls, const char *fn)
678{
679 const char *of = cls;
680 return (0 == strcmp (of, fn)) ? GNUNET_SYSERR : GNUNET_OK;
681}
682
683/**
684 * Append a filename to a configuration value that
685 * represents a list of filenames
686 *
687 * @param value filename to append
688 * @return GNUNET_OK on success,
689 * GNUNET_NO if the filename already in the list
690 * GNUNET_SYSERR on error
691 */
692int
693GNUNET_CONFIGURATION_append_value_filename (struct GNUNET_CONFIGURATION_Handle
694 *cfg,
695 const char *section,
696 const char *option,
697 const char *value)
698{
699 char *escaped;
700 char *old;
701 char *nw;
702
703 if (GNUNET_SYSERR
704 == GNUNET_CONFIGURATION_iterate_value_filenames (cfg,
705 section,
706 option,
707 &test_match,
708 (void *) value))
709 return GNUNET_NO; /* already exists */
710 if (GNUNET_OK !=
711 GNUNET_CONFIGURATION_get_value_string (cfg, section, option, &old))
712 old = GNUNET_strdup ("");
713 escaped = escape_name (value);
714 nw = GNUNET_malloc (strlen (old) + strlen (escaped) + 2);
715 strcpy (nw, old);
716 strcat (nw, " ");
717 strcat (nw, escaped);
718 GNUNET_CONFIGURATION_set_value_string (cfg, section, option, nw);
719 GNUNET_free (old);
720 GNUNET_free (nw);
721 GNUNET_free (escaped);
722 return GNUNET_OK;
723}
724
725
726/**
727 * Remove a filename from a configuration value that
728 * represents a list of filenames
729 *
730 * @param value filename to remove
731 * @return GNUNET_OK on success,
732 * GNUNET_NO if the filename is not in the list,
733 * GNUNET_SYSERR on error
734 */
735int
736GNUNET_CONFIGURATION_remove_value_filename (struct GNUNET_CONFIGURATION_Handle
737 *cfg,
738 const char *section,
739 const char *option,
740 const char *value)
741{
742 char *list;
743 char *pos;
744 char *end;
745 char *match;
746 char old;
747 int ret;
748
749 if (GNUNET_OK !=
750 GNUNET_CONFIGURATION_get_value_string (cfg, section, option, &list))
751 return GNUNET_NO;
752 match = escape_name (value);
753 ret = 0;
754 pos = list;
755 while (1)
756 {
757 while (pos[0] == ' ')
758 pos++;
759 if (strlen (pos) == 0)
760 break;
761 end = pos + 1;
762 while ((end[0] != ' ') && (end[0] != '\0'))
763 {
764 if (end[0] == '\\')
765 {
766 switch (end[1])
767 {
768 case '\\':
769 case ' ':
770 end++;
771 break;
772 case '\0':
773 /* illegal, but just keep it */
774 break;
775 default:
776 /* illegal, but just ignore that there was a '/' */
777 break;
778 }
779 }
780 end++;
781 }
782 old = end[0];
783 end[0] = '\0';
784 if (strlen (pos) > 0)
785 {
786 if (0 == strcmp (pos, match))
787 {
788 memmove (pos, &end[1], strlen (&end[1]) + 1);
789
790 if (pos != list)
791 pos[-1] = ' '; /* previously changed to "\0" */
792 GNUNET_CONFIGURATION_set_value_string (cfg,
793 section, option, list);
794 GNUNET_free (list);
795 GNUNET_free (match);
796 return GNUNET_OK;
797 }
798 }
799 if (old == '\0')
800 break;
801 pos = end + 1;
802 }
803 GNUNET_free (list);
804 GNUNET_free (match);
805 return GNUNET_NO;
806}
807
808
809/**
810 * Load configuration (starts with defaults, then loads
811 * system-specific configuration).
812 */
813int
814GNUNET_CONFIGURATION_load (struct GNUNET_CONFIGURATION_Handle *cfg,
815 const char *cfgfn)
816{
817 char *baseconfig;
818 char *ipath;
819
820 ipath = GNUNET_OS_installation_get_path (GNUNET_OS_IPK_DATADIR);
821 if (ipath == NULL)
822 return GNUNET_SYSERR;
823 baseconfig = NULL;
824 GNUNET_asprintf (&baseconfig,
825 "%s%s%s", ipath, DIR_SEPARATOR_STR, "defaults.conf");
826 GNUNET_free (ipath);
827 if ((GNUNET_OK !=
828 GNUNET_CONFIGURATION_parse (cfg, baseconfig)) ||
829 (!((cfgfn == NULL) ||
830 (GNUNET_OK == GNUNET_CONFIGURATION_parse (cfg, cfgfn)))))
831 {
832 GNUNET_free (baseconfig);
833 return GNUNET_SYSERR;
834 }
835 GNUNET_free (baseconfig);
836 if ((GNUNET_YES == GNUNET_CONFIGURATION_have_value (cfg,
837 "TESTING",
838 "WEAKRANDOM")) &&
839 (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno (cfg,
840 "TESTING",
841 "WEAKRANDOM")))
842 GNUNET_CRYPTO_random_disable_entropy_gathering ();
843 return GNUNET_OK;
844}
845
846
847
848/* end of configuration.c */