8b526f2e958902a5dcbb22a674b0c0caa267f44f
1 /**
2 * collectd - src/configfile.c
3 * Copyright (C) 2005-2008 Florian octo Forster
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18 *
19 * Authors:
20 * Florian octo Forster <octo at verplant.org>
21 * Sebastian tokkee Harl <sh at tokkee.org>
22 **/
24 #include "collectd.h"
26 #include "liboconfig/oconfig.h"
28 #include "common.h"
29 #include "plugin.h"
30 #include "configfile.h"
31 #include "types_list.h"
32 #include "utils_threshold.h"
34 #if HAVE_WORDEXP_H
35 # include <wordexp.h>
36 #endif /* HAVE_WORDEXP_H */
38 #define ESCAPE_NULL(str) ((str) == NULL ? "(null)" : (str))
40 /*
41 * Private types
42 */
43 typedef struct cf_callback
44 {
45 const char *type;
46 int (*callback) (const char *, const char *);
47 const char **keys;
48 int keys_num;
49 struct cf_callback *next;
50 } cf_callback_t;
52 typedef struct cf_complex_callback_s
53 {
54 char *type;
55 int (*callback) (oconfig_item_t *);
56 struct cf_complex_callback_s *next;
57 } cf_complex_callback_t;
59 typedef struct cf_value_map_s
60 {
61 char *key;
62 int (*func) (const oconfig_item_t *);
63 } cf_value_map_t;
65 typedef struct cf_global_option_s
66 {
67 char *key;
68 char *value;
69 char *def;
70 } cf_global_option_t;
72 /*
73 * Prototypes of callback functions
74 */
75 static int dispatch_value_typesdb (const oconfig_item_t *ci);
76 static int dispatch_value_plugindir (const oconfig_item_t *ci);
77 static int dispatch_value_loadplugin (const oconfig_item_t *ci);
79 /*
80 * Private variables
81 */
82 static cf_callback_t *first_callback = NULL;
83 static cf_complex_callback_t *complex_callback_head = NULL;
85 static cf_value_map_t cf_value_map[] =
86 {
87 {"TypesDB", dispatch_value_typesdb},
88 {"PluginDir", dispatch_value_plugindir},
89 {"LoadPlugin", dispatch_value_loadplugin}
90 };
91 static int cf_value_map_num = STATIC_ARRAY_LEN (cf_value_map);
93 static cf_global_option_t cf_global_options[] =
94 {
95 {"BaseDir", NULL, PKGLOCALSTATEDIR},
96 {"PIDFile", NULL, PIDFILE},
97 {"Hostname", NULL, NULL},
98 {"FQDNLookup", NULL, "false"},
99 {"Interval", NULL, "10"},
100 {"ReadThreads", NULL, "5"}
101 };
102 static int cf_global_options_num = STATIC_ARRAY_LEN (cf_global_options);
104 static int cf_default_typesdb = 1;
106 /*
107 * Functions to handle register/unregister, search, and other plugin related
108 * stuff
109 */
110 static cf_callback_t *cf_search (const char *type)
111 {
112 cf_callback_t *cf_cb;
114 if (type == NULL)
115 return (NULL);
117 for (cf_cb = first_callback; cf_cb != NULL; cf_cb = cf_cb->next)
118 if (strcasecmp (cf_cb->type, type) == 0)
119 break;
121 return (cf_cb);
122 }
124 static int cf_dispatch (const char *type, const char *orig_key,
125 const char *orig_value)
126 {
127 cf_callback_t *cf_cb;
128 char *key;
129 char *value;
130 int ret;
131 int i;
133 DEBUG ("type = %s, key = %s, value = %s",
134 ESCAPE_NULL(type),
135 ESCAPE_NULL(orig_key),
136 ESCAPE_NULL(orig_value));
138 if ((cf_cb = cf_search (type)) == NULL)
139 {
140 WARNING ("Found a configuration for the `%s' plugin, but "
141 "the plugin isn't loaded or didn't register "
142 "a configuration callback.", type);
143 return (-1);
144 }
146 if ((key = strdup (orig_key)) == NULL)
147 return (1);
148 if ((value = strdup (orig_value)) == NULL)
149 {
150 free (key);
151 return (2);
152 }
154 ret = -1;
156 for (i = 0; i < cf_cb->keys_num; i++)
157 {
158 if (strcasecmp (cf_cb->keys[i], key) == 0)
159 {
160 ret = (*cf_cb->callback) (key, value);
161 break;
162 }
163 }
165 if (i >= cf_cb->keys_num)
166 WARNING ("Plugin `%s' did not register for value `%s'.", type, key);
168 free (key);
169 free (value);
171 DEBUG ("return (%i)", ret);
173 return (ret);
174 } /* int cf_dispatch */
176 static int dispatch_global_option (const oconfig_item_t *ci)
177 {
178 if (ci->values_num != 1)
179 return (-1);
180 if (ci->values[0].type == OCONFIG_TYPE_STRING)
181 return (global_option_set (ci->key, ci->values[0].value.string));
182 else if (ci->values[0].type == OCONFIG_TYPE_NUMBER)
183 {
184 char tmp[128];
185 snprintf (tmp, sizeof (tmp), "%lf", ci->values[0].value.number);
186 tmp[127] = '\0';
187 return (global_option_set (ci->key, tmp));
188 }
189 else if (ci->values[0].type == OCONFIG_TYPE_BOOLEAN)
190 {
191 if (ci->values[0].value.boolean)
192 return (global_option_set (ci->key, "true"));
193 else
194 return (global_option_set (ci->key, "false"));
195 }
197 return (-1);
198 } /* int dispatch_global_option */
200 static int dispatch_value_typesdb (const oconfig_item_t *ci)
201 {
202 int i = 0;
204 assert (strcasecmp (ci->key, "TypesDB") == 0);
206 cf_default_typesdb = 0;
208 if (ci->values_num < 1)
209 return (-1);
211 for (i = 0; i < ci->values_num; ++i)
212 {
213 if (OCONFIG_TYPE_STRING != ci->values[i].type)
214 continue;
216 read_types_list (ci->values[i].value.string);
217 }
218 return (0);
219 } /* int dispatch_value_typesdb */
221 static int dispatch_value_plugindir (const oconfig_item_t *ci)
222 {
223 assert (strcasecmp (ci->key, "PluginDir") == 0);
225 if (ci->values_num != 1)
226 return (-1);
227 if (ci->values[0].type != OCONFIG_TYPE_STRING)
228 return (-1);
230 plugin_set_dir (ci->values[0].value.string);
231 return (0);
232 }
234 static int dispatch_value_loadplugin (const oconfig_item_t *ci)
235 {
236 assert (strcasecmp (ci->key, "LoadPlugin") == 0);
238 if (ci->values_num != 1)
239 return (-1);
240 if (ci->values[0].type != OCONFIG_TYPE_STRING)
241 return (-1);
243 return (plugin_load (ci->values[0].value.string));
244 } /* int dispatch_value_loadplugin */
246 static int dispatch_value_plugin (const char *plugin, oconfig_item_t *ci)
247 {
248 char buffer[4096];
249 char *buffer_ptr;
250 int buffer_free;
251 int i;
253 buffer_ptr = buffer;
254 buffer_free = sizeof (buffer);
256 for (i = 0; i < ci->values_num; i++)
257 {
258 int status = -1;
260 if (ci->values[i].type == OCONFIG_TYPE_STRING)
261 status = snprintf (buffer_ptr, buffer_free, " %s",
262 ci->values[i].value.string);
263 else if (ci->values[i].type == OCONFIG_TYPE_NUMBER)
264 status = snprintf (buffer_ptr, buffer_free, " %lf",
265 ci->values[i].value.number);
266 else if (ci->values[i].type == OCONFIG_TYPE_BOOLEAN)
267 status = snprintf (buffer_ptr, buffer_free, " %s",
268 ci->values[i].value.boolean
269 ? "true" : "false");
271 if ((status < 0) || (status >= buffer_free))
272 return (-1);
273 buffer_free -= status;
274 buffer_ptr += status;
275 }
276 /* skip the initial space */
277 buffer_ptr = buffer + 1;
279 return (cf_dispatch (plugin, ci->key, buffer_ptr));
280 } /* int plugin_conf_dispatch */
282 static int dispatch_value (const oconfig_item_t *ci)
283 {
284 int ret = -2;
285 int i;
287 for (i = 0; i < cf_value_map_num; i++)
288 if (strcasecmp (cf_value_map[i].key, ci->key) == 0)
289 {
290 ret = cf_value_map[i].func (ci);
291 break;
292 }
294 for (i = 0; i < cf_global_options_num; i++)
295 if (strcasecmp (cf_global_options[i].key, ci->key) == 0)
296 {
297 ret = dispatch_global_option (ci);
298 break;
299 }
301 return (ret);
302 } /* int dispatch_value */
304 static int dispatch_block_plugin (oconfig_item_t *ci)
305 {
306 int i;
307 char *name;
309 cf_complex_callback_t *cb;
311 if (strcasecmp (ci->key, "Plugin") != 0)
312 return (-1);
313 if (ci->values_num < 1)
314 return (-1);
315 if (ci->values[0].type != OCONFIG_TYPE_STRING)
316 return (-1);
318 name = ci->values[0].value.string;
320 /* Check for a complex callback first */
321 for (cb = complex_callback_head; cb != NULL; cb = cb->next)
322 if (strcasecmp (name, cb->type) == 0)
323 return (cb->callback (ci));
325 /* Hm, no complex plugin found. Dispatch the values one by one */
326 for (i = 0; i < ci->children_num; i++)
327 {
328 if (ci->children[i].children == NULL)
329 dispatch_value_plugin (name, ci->children + i);
330 else
331 {DEBUG ("No nested config blocks allowed for this plugin.");}
332 }
334 return (0);
335 }
338 static int dispatch_block (oconfig_item_t *ci)
339 {
340 if (strcasecmp (ci->key, "Plugin") == 0)
341 return (dispatch_block_plugin (ci));
342 else if (strcasecmp (ci->key, "Threshold") == 0)
343 return (ut_config (ci));
345 return (0);
346 }
348 static int cf_ci_replace_child (oconfig_item_t *dst, oconfig_item_t *src,
349 int offset)
350 {
351 oconfig_item_t *temp;
352 int i;
354 assert (offset >= 0);
355 assert (dst->children_num > offset);
357 /* Free the memory used by the replaced child. Usually that's the
358 * `Include "blah"' statement. */
359 temp = dst->children + offset;
360 for (i = 0; i < temp->values_num; i++)
361 {
362 if (temp->values[i].type == OCONFIG_TYPE_STRING)
363 {
364 sfree (temp->values[i].value.string);
365 }
366 }
367 sfree (temp->values);
368 temp = NULL;
370 /* If (src->children_num == 0) the array size is decreased. If offset
371 * is _not_ the last element, (offset < (src->children_num - 1)), then
372 * we need to move the trailing elements before resizing the array. */
373 if ((src->children_num == 0) && (offset < (src->children_num - 1)))
374 {
375 int nmemb = src->children_num - (offset + 1);
376 memmove (src->children + offset, src->children + offset + 1,
377 sizeof (oconfig_item_t) * nmemb);
378 }
380 /* Resize the memory containing the children to be big enough to hold
381 * all children. */
382 temp = (oconfig_item_t *) realloc (dst->children,
383 sizeof (oconfig_item_t)
384 * (dst->children_num + src->children_num - 1));
385 if (temp == NULL)
386 {
387 ERROR ("configfile: realloc failed.");
388 return (-1);
389 }
390 dst->children = temp;
392 /* If there are children behind the include statement, and they have
393 * not yet been moved because (src->children_num == 0), then move them
394 * to the end of the list, so that the new children have room before
395 * them. */
396 if ((src->children_num > 0)
397 && ((dst->children_num - (offset + 1)) > 0))
398 {
399 int nmemb = dst->children_num - (offset + 1);
400 int old_offset = offset + 1;
401 int new_offset = offset + src->children_num;
403 memmove (dst->children + new_offset,
404 dst->children + old_offset,
405 sizeof (oconfig_item_t) * nmemb);
406 }
408 /* Last but not least: If there are new childrem, copy them to the
409 * memory reserved for them. */
410 if (src->children_num > 0)
411 {
412 memcpy (dst->children + offset,
413 src->children,
414 sizeof (oconfig_item_t) * src->children_num);
415 }
417 /* Update the number of children. */
418 dst->children_num += (src->children_num - 1);
420 return (0);
421 } /* int cf_ci_replace_child */
423 static int cf_ci_append_children (oconfig_item_t *dst, oconfig_item_t *src)
424 {
425 oconfig_item_t *temp;
427 if ((src == NULL) || (src->children_num == 0))
428 return (0);
430 temp = (oconfig_item_t *) realloc (dst->children,
431 sizeof (oconfig_item_t)
432 * (dst->children_num + src->children_num));
433 if (temp == NULL)
434 {
435 ERROR ("configfile: realloc failed.");
436 return (-1);
437 }
438 dst->children = temp;
440 memcpy (dst->children + dst->children_num,
441 src->children,
442 sizeof (oconfig_item_t)
443 * src->children_num);
444 dst->children_num += src->children_num;
446 return (0);
447 } /* int cf_ci_append_children */
449 #define CF_MAX_DEPTH 8
450 static oconfig_item_t *cf_read_generic (const char *path, int depth);
452 static int cf_include_all (oconfig_item_t *root, int depth)
453 {
454 int i;
456 for (i = 0; i < root->children_num; i++)
457 {
458 oconfig_item_t *new;
459 oconfig_item_t *old;
461 /* Ignore all blocks, including `Include' blocks. */
462 if (root->children[i].children_num != 0)
463 continue;
465 if (strcasecmp (root->children[i].key, "Include") != 0)
466 continue;
468 old = root->children + i;
470 if ((old->values_num != 1)
471 || (old->values[0].type != OCONFIG_TYPE_STRING))
472 {
473 ERROR ("configfile: `Include' needs exactly one string argument.");
474 continue;
475 }
477 new = cf_read_generic (old->values[0].value.string, depth + 1);
478 if (new == NULL)
479 continue;
481 /* Now replace the i'th child in `root' with `new'. */
482 cf_ci_replace_child (root, new, i);
484 sfree (new->values);
485 sfree (new);
486 } /* for (i = 0; i < root->children_num; i++) */
488 return (0);
489 } /* int cf_include_all */
491 static oconfig_item_t *cf_read_file (const char *file, int depth)
492 {
493 oconfig_item_t *root;
495 assert (depth < CF_MAX_DEPTH);
497 root = oconfig_parse_file (file);
498 if (root == NULL)
499 {
500 ERROR ("configfile: Cannot read file `%s'.", file);
501 return (NULL);
502 }
504 cf_include_all (root, depth);
506 return (root);
507 } /* oconfig_item_t *cf_read_file */
509 static int cf_compare_string (const void *p1, const void *p2)
510 {
511 return strcmp (*(const char **) p1, *(const char **) p2);
512 }
514 static oconfig_item_t *cf_read_dir (const char *dir, int depth)
515 {
516 oconfig_item_t *root = NULL;
517 DIR *dh;
518 struct dirent *de;
519 char **filenames = NULL;
520 int filenames_num = 0;
521 int status;
522 int i;
524 assert (depth < CF_MAX_DEPTH);
526 dh = opendir (dir);
527 if (dh == NULL)
528 {
529 char errbuf[1024];
530 ERROR ("configfile: opendir failed: %s",
531 sstrerror (errno, errbuf, sizeof (errbuf)));
532 return (NULL);
533 }
535 root = (oconfig_item_t *) malloc (sizeof (oconfig_item_t));
536 if (root == NULL)
537 {
538 ERROR ("configfile: malloc failed.");
539 return (NULL);
540 }
541 memset (root, '\0', sizeof (oconfig_item_t));
543 while ((de = readdir (dh)) != NULL)
544 {
545 char name[1024];
546 char **tmp;
548 if ((de->d_name[0] == '.') || (de->d_name[0] == '\0'))
549 continue;
551 status = snprintf (name, sizeof (name), "%s/%s",
552 dir, de->d_name);
553 if (status >= sizeof (name))
554 {
555 ERROR ("configfile: Not including `%s/%s' because its"
556 " name is too long.",
557 dir, de->d_name);
558 for (i = 0; i < filenames_num; ++i)
559 free (filenames[i]);
560 free (filenames);
561 free (root);
562 return (NULL);
563 }
565 ++filenames_num;
566 tmp = (char **) realloc (filenames,
567 filenames_num * sizeof (*filenames));
568 if (tmp == NULL) {
569 ERROR ("configfile: realloc failed.");
570 for (i = 0; i < filenames_num - 1; ++i)
571 free (filenames[i]);
572 free (filenames);
573 free (root);
574 return (NULL);
575 }
576 filenames = tmp;
578 filenames[filenames_num - 1] = sstrdup (name);
579 }
581 qsort ((void *) filenames, filenames_num, sizeof (*filenames),
582 cf_compare_string);
584 for (i = 0; i < filenames_num; ++i)
585 {
586 oconfig_item_t *temp;
587 char *name = filenames[i];
589 temp = cf_read_generic (name, depth);
590 if (temp == NULL) {
591 int j;
592 for (j = i; j < filenames_num; ++j)
593 free (filenames[j]);
594 free (filenames);
595 oconfig_free (root);
596 return (NULL);
597 }
599 cf_ci_append_children (root, temp);
600 sfree (temp->children);
601 sfree (temp);
603 free (name);
604 }
606 free(filenames);
607 return (root);
608 } /* oconfig_item_t *cf_read_dir */
610 /*
611 * cf_read_generic
612 *
613 * Path is stat'ed and either cf_read_file or cf_read_dir is called
614 * accordingly.
615 *
616 * There are two versions of this function: If `wordexp' exists shell wildcards
617 * will be expanded and the function will include all matches found. If
618 * `wordexp' (or, more precisely, it's header file) is not available the
619 * simpler function is used which does not do any such expansion.
620 */
621 #if HAVE_WORDEXP_H
622 static oconfig_item_t *cf_read_generic (const char *path, int depth)
623 {
624 oconfig_item_t *root = NULL;
625 int status;
626 const char *path_ptr;
627 wordexp_t we;
628 int i;
630 if (depth >= CF_MAX_DEPTH)
631 {
632 ERROR ("configfile: Not including `%s' because the maximum "
633 "nesting depth has been reached.", path);
634 return (NULL);
635 }
637 status = wordexp (path, &we, WRDE_NOCMD);
638 if (status != 0)
639 {
640 ERROR ("configfile: wordexp (%s) failed.", path);
641 return (NULL);
642 }
644 root = (oconfig_item_t *) malloc (sizeof (oconfig_item_t));
645 if (root == NULL)
646 {
647 ERROR ("configfile: malloc failed.");
648 return (NULL);
649 }
650 memset (root, '\0', sizeof (oconfig_item_t));
652 /* wordexp() might return a sorted list already. That's not
653 * documented though, so let's make sure we get what we want. */
654 qsort ((void *) we.we_wordv, we.we_wordc, sizeof (*we.we_wordv),
655 cf_compare_string);
657 for (i = 0; i < we.we_wordc; i++)
658 {
659 oconfig_item_t *temp;
660 struct stat statbuf;
662 path_ptr = we.we_wordv[i];
664 status = stat (path_ptr, &statbuf);
665 if (status != 0)
666 {
667 char errbuf[1024];
668 ERROR ("configfile: stat (%s) failed: %s",
669 path_ptr,
670 sstrerror (errno, errbuf, sizeof (errbuf)));
671 oconfig_free (root);
672 return (NULL);
673 }
675 if (S_ISREG (statbuf.st_mode))
676 temp = cf_read_file (path_ptr, depth);
677 else if (S_ISDIR (statbuf.st_mode))
678 temp = cf_read_dir (path_ptr, depth);
679 else
680 {
681 ERROR ("configfile: %s is neither a file nor a "
682 "directory.", path);
683 continue;
684 }
686 if (temp == NULL) {
687 oconfig_free (root);
688 return (NULL);
689 }
691 cf_ci_append_children (root, temp);
692 sfree (temp->children);
693 sfree (temp);
694 }
696 wordfree (&we);
698 return (root);
699 } /* oconfig_item_t *cf_read_generic */
700 /* #endif HAVE_WORDEXP_H */
702 #else /* if !HAVE_WORDEXP_H */
703 static oconfig_item_t *cf_read_generic (const char *path, int depth)
704 {
705 struct stat statbuf;
706 int status;
708 if (depth >= CF_MAX_DEPTH)
709 {
710 ERROR ("configfile: Not including `%s' because the maximum "
711 "nesting depth has been reached.", path);
712 return (NULL);
713 }
715 status = stat (path, &statbuf);
716 if (status != 0)
717 {
718 char errbuf[1024];
719 ERROR ("configfile: stat (%s) failed: %s",
720 path,
721 sstrerror (errno, errbuf, sizeof (errbuf)));
722 return (NULL);
723 }
725 if (S_ISREG (statbuf.st_mode))
726 return (cf_read_file (path, depth));
727 else if (S_ISDIR (statbuf.st_mode))
728 return (cf_read_dir (path, depth));
730 ERROR ("configfile: %s is neither a file nor a directory.", path);
731 return (NULL);
732 } /* oconfig_item_t *cf_read_generic */
733 #endif /* !HAVE_WORDEXP_H */
735 /*
736 * Public functions
737 */
738 int global_option_set (const char *option, const char *value)
739 {
740 int i;
742 DEBUG ("option = %s; value = %s;", option, value);
744 for (i = 0; i < cf_global_options_num; i++)
745 if (strcasecmp (cf_global_options[i].key, option) == 0)
746 break;
748 if (i >= cf_global_options_num)
749 return (-1);
751 sfree (cf_global_options[i].value);
753 if (value != NULL)
754 cf_global_options[i].value = strdup (value);
755 else
756 cf_global_options[i].value = NULL;
758 return (0);
759 }
761 const char *global_option_get (const char *option)
762 {
763 int i;
765 for (i = 0; i < cf_global_options_num; i++)
766 if (strcasecmp (cf_global_options[i].key, option) == 0)
767 break;
769 if (i >= cf_global_options_num)
770 return (NULL);
772 return ((cf_global_options[i].value != NULL)
773 ? cf_global_options[i].value
774 : cf_global_options[i].def);
775 } /* char *global_option_get */
777 void cf_unregister (const char *type)
778 {
779 cf_callback_t *this, *prev;
781 for (prev = NULL, this = first_callback;
782 this != NULL;
783 prev = this, this = this->next)
784 if (strcasecmp (this->type, type) == 0)
785 {
786 if (prev == NULL)
787 first_callback = this->next;
788 else
789 prev->next = this->next;
791 free (this);
792 break;
793 }
794 } /* void cf_unregister */
796 void cf_unregister_complex (const char *type)
797 {
798 cf_complex_callback_t *this, *prev;
800 for (prev = NULL, this = complex_callback_head;
801 this != NULL;
802 prev = this, this = this->next)
803 if (strcasecmp (this->type, type) == 0)
804 {
805 if (prev == NULL)
806 complex_callback_head = this->next;
807 else
808 prev->next = this->next;
810 sfree (this->type);
811 sfree (this);
812 break;
813 }
814 } /* void cf_unregister */
816 void cf_register (const char *type,
817 int (*callback) (const char *, const char *),
818 const char **keys, int keys_num)
819 {
820 cf_callback_t *cf_cb;
822 /* Remove this module from the list, if it already exists */
823 cf_unregister (type);
825 /* This pointer will be free'd in `cf_unregister' */
826 if ((cf_cb = (cf_callback_t *) malloc (sizeof (cf_callback_t))) == NULL)
827 return;
829 cf_cb->type = type;
830 cf_cb->callback = callback;
831 cf_cb->keys = keys;
832 cf_cb->keys_num = keys_num;
834 cf_cb->next = first_callback;
835 first_callback = cf_cb;
836 } /* void cf_register */
838 int cf_register_complex (const char *type, int (*callback) (oconfig_item_t *))
839 {
840 cf_complex_callback_t *new;
842 new = (cf_complex_callback_t *) malloc (sizeof (cf_complex_callback_t));
843 if (new == NULL)
844 return (-1);
846 new->type = strdup (type);
847 if (new->type == NULL)
848 {
849 sfree (new);
850 return (-1);
851 }
853 new->callback = callback;
854 new->next = NULL;
856 if (complex_callback_head == NULL)
857 {
858 complex_callback_head = new;
859 }
860 else
861 {
862 cf_complex_callback_t *last = complex_callback_head;
863 while (last->next != NULL)
864 last = last->next;
865 last->next = new;
866 }
868 return (0);
869 } /* int cf_register_complex */
871 int cf_read (char *filename)
872 {
873 oconfig_item_t *conf;
874 int i;
876 conf = cf_read_generic (filename, 0 /* depth */);
877 if (conf == NULL)
878 {
879 ERROR ("Unable to read config file %s.", filename);
880 return (-1);
881 }
883 for (i = 0; i < conf->children_num; i++)
884 {
885 if (conf->children[i].children == NULL)
886 dispatch_value (conf->children + i);
887 else
888 dispatch_block (conf->children + i);
889 }
891 oconfig_free (conf);
893 /* Read the default types.db if no `TypesDB' option was given. */
894 if (cf_default_typesdb)
895 read_types_list (PLUGINDIR"/types.db");
897 return (0);
898 } /* int cf_read */