433764e285014902dd7bbe7f53371ed2cf364a7b
1 /**
2 * collectd - src/curl_json.c
3 * Copyright (C) 2009 Doug MacEachern
4 * Copyright (C) 2006-2010 Florian octo Forster
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; only version 2 of the License is applicable.
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 * Doug MacEachern <dougm at hyperic.com>
21 * Florian octo Forster <octo at verplant.org>
22 **/
24 #include "collectd.h"
25 #include "common.h"
26 #include "plugin.h"
27 #include "configfile.h"
28 #include "utils_avltree.h"
30 #include <curl/curl.h>
31 #include <yajl/yajl_parse.h>
33 #define CJ_DEFAULT_HOST "localhost"
34 #define CJ_KEY_MAGIC 0x43484b59UL /* CHKY */
35 #define CJ_IS_KEY(key) (key)->magic == CJ_KEY_MAGIC
36 #define CJ_ANY "*"
37 #define COUCH_MIN(x,y) ((x) < (y) ? (x) : (y))
39 struct cj_key_s;
40 typedef struct cj_key_s cj_key_t;
41 struct cj_key_s /* {{{ */
42 {
43 char *path;
44 char *type;
45 char *instance;
46 unsigned long magic;
47 };
48 /* }}} */
50 struct cj_s /* {{{ */
51 {
52 char *instance;
53 char *host;
55 char *url;
56 char *user;
57 char *pass;
58 char *credentials;
59 int verify_peer;
60 int verify_host;
61 char *cacert;
63 CURL *curl;
64 char curl_errbuf[CURL_ERROR_SIZE];
66 yajl_handle yajl;
67 c_avl_tree_t *tree;
68 cj_key_t *key;
69 int depth;
70 struct {
71 union {
72 c_avl_tree_t *tree;
73 cj_key_t *key;
74 };
75 char name[DATA_MAX_NAME_LEN];
76 } state[YAJL_MAX_DEPTH];
77 };
78 typedef struct cj_s cj_t; /* }}} */
80 static int cj_read (user_data_t *ud);
81 static int cj_curl_perform (cj_t *db, CURL *curl);
82 static void cj_submit (cj_t *db, cj_key_t *key, value_t *value);
84 static size_t cj_curl_callback (void *buf, /* {{{ */
85 size_t size, size_t nmemb, void *user_data)
86 {
87 cj_t *db;
88 size_t len;
89 yajl_status status;
91 len = size * nmemb;
93 if (len <= 0)
94 return (len);
96 db = user_data;
97 if (db == NULL)
98 return (0);
100 status = yajl_parse(db->yajl, (unsigned char *)buf, len);
101 if ((status != yajl_status_ok)
102 && (status != yajl_status_insufficient_data))
103 {
104 unsigned char *msg =
105 yajl_get_error(db->yajl, /* verbose = */ 1,
106 /* jsonText = */ (unsigned char *) buf, (unsigned int) len);
107 ERROR ("curl_json plugin: yajl_parse failed: %s", msg);
108 yajl_free_error(db->yajl, msg);
109 return (0); /* abort write callback */
110 }
112 return (len);
113 } /* }}} size_t cj_curl_callback */
115 static int cj_get_type (cj_key_t *key)
116 {
117 const data_set_t *ds;
119 ds = plugin_get_ds (key->type);
120 if (ds == NULL)
121 return -1; /* let plugin_write do the complaining */
122 else
123 return ds->ds[0].type; /* XXX support ds->ds_len > 1 */
124 }
126 /* yajl callbacks */
127 #define CJ_CB_ABORT 0
128 #define CJ_CB_CONTINUE 1
130 /* "number" may not be null terminated, so copy it into a buffer before
131 * parsing. */
132 static int cj_cb_number (void *ctx,
133 const char *number, unsigned int number_len)
134 {
135 char buffer[number_len + 1];
137 cj_t *db = (cj_t *)ctx;
138 cj_key_t *key = db->state[db->depth].key;
139 char *endptr;
140 value_t vt;
141 int type;
143 if (key == NULL)
144 return (CJ_CB_CONTINUE);
146 memcpy (buffer, number, number_len);
147 buffer[sizeof (buffer) - 1] = 0;
149 type = cj_get_type (key);
151 endptr = NULL;
152 errno = 0;
154 if (type == DS_TYPE_COUNTER)
155 vt.counter = (counter_t) strtoull (buffer, &endptr, /* base = */ 0);
156 else if (type == DS_TYPE_GAUGE)
157 vt.gauge = (gauge_t) strtod (buffer, &endptr);
158 else if (type == DS_TYPE_DERIVE)
159 vt.derive = (derive_t) strtoll (buffer, &endptr, /* base = */ 0);
160 else if (type == DS_TYPE_ABSOLUTE)
161 vt.absolute = (absolute_t) strtoull (buffer, &endptr, /* base = */ 0);
162 else
163 {
164 ERROR ("curl_json plugin: Unknown data source type: \"%s\"", key->type);
165 return (CJ_CB_ABORT);
166 }
168 if ((endptr == &buffer[0]) || (errno != 0))
169 {
170 NOTICE ("curl_json plugin: Overflow while parsing number. "
171 "Ignoring this value.");
172 return (CJ_CB_CONTINUE);
173 }
175 cj_submit (db, key, &vt);
176 return (CJ_CB_CONTINUE);
177 } /* int cj_cb_number */
179 static int cj_cb_map_key (void *ctx, const unsigned char *val,
180 unsigned int len)
181 {
182 cj_t *db = (cj_t *)ctx;
183 c_avl_tree_t *tree;
185 tree = db->state[db->depth-1].tree;
187 if (tree != NULL)
188 {
189 cj_key_t *value;
190 char *name;
192 name = db->state[db->depth].name;
193 len = COUCH_MIN(len, sizeof (db->state[db->depth].name)-1);
194 sstrncpy (name, (char *)val, len+1);
196 if (c_avl_get (tree, name, (void *) &value) == 0)
197 db->state[db->depth].key = value;
198 else if (c_avl_get (tree, CJ_ANY, (void *) &value) == 0)
199 db->state[db->depth].key = value;
200 else
201 db->state[db->depth].key = NULL;
202 }
204 return (CJ_CB_CONTINUE);
205 }
207 static int cj_cb_string (void *ctx, const unsigned char *val,
208 unsigned int len)
209 {
210 cj_t *db = (cj_t *)ctx;
211 c_avl_tree_t *tree;
212 char *ptr;
214 if (db->depth != 1) /* e.g. _all_dbs */
215 return (CJ_CB_CONTINUE);
217 cj_cb_map_key (ctx, val, len); /* same logic */
219 tree = db->state[db->depth].tree;
221 if ((tree != NULL) && (ptr = rindex (db->url, '/')))
222 {
223 char url[PATH_MAX];
224 CURL *curl;
226 /* url =~ s,[^/]+$,$name, */
227 len = (ptr - db->url) + 1;
228 ptr = url;
229 sstrncpy (ptr, db->url, sizeof (url));
230 sstrncpy (ptr + len, db->state[db->depth].name, sizeof (url) - len);
232 curl = curl_easy_duphandle (db->curl);
233 curl_easy_setopt (curl, CURLOPT_URL, url);
234 cj_curl_perform (db, curl);
235 curl_easy_cleanup (curl);
236 }
237 return (CJ_CB_CONTINUE);
238 }
240 static int cj_cb_start (void *ctx)
241 {
242 cj_t *db = (cj_t *)ctx;
243 if (++db->depth >= YAJL_MAX_DEPTH)
244 {
245 ERROR ("curl_json plugin: %s depth exceeds max, aborting.", db->url);
246 return (CJ_CB_ABORT);
247 }
248 return (CJ_CB_CONTINUE);
249 }
251 static int cj_cb_end (void *ctx)
252 {
253 cj_t *db = (cj_t *)ctx;
254 db->state[db->depth].tree = NULL;
255 --db->depth;
256 return (CJ_CB_CONTINUE);
257 }
259 static int cj_cb_start_map (void *ctx)
260 {
261 return cj_cb_start (ctx);
262 }
264 static int cj_cb_end_map (void *ctx)
265 {
266 return cj_cb_end (ctx);
267 }
269 static int cj_cb_start_array (void * ctx)
270 {
271 return cj_cb_start (ctx);
272 }
274 static int cj_cb_end_array (void * ctx)
275 {
276 return cj_cb_start (ctx);
277 }
279 static yajl_callbacks ycallbacks = {
280 NULL, /* null */
281 NULL, /* boolean */
282 NULL, /* integer */
283 NULL, /* double */
284 cj_cb_number,
285 cj_cb_string,
286 cj_cb_start_map,
287 cj_cb_map_key,
288 cj_cb_end_map,
289 cj_cb_start_array,
290 cj_cb_end_array
291 };
293 /* end yajl callbacks */
295 static void cj_key_free (cj_key_t *key) /* {{{ */
296 {
297 if (key == NULL)
298 return;
300 sfree (key->path);
301 sfree (key->type);
302 sfree (key->instance);
304 sfree (key);
305 } /* }}} void cj_key_free */
307 static void cj_tree_free (c_avl_tree_t *tree) /* {{{ */
308 {
309 char *name;
310 void *value;
312 while (c_avl_pick (tree, (void *) &name, (void *) &value) == 0)
313 {
314 cj_key_t *key = (cj_key_t *)value;
316 if (CJ_IS_KEY(key))
317 cj_key_free (key);
318 else
319 cj_tree_free ((c_avl_tree_t *)value);
321 sfree (name);
322 }
324 c_avl_destroy (tree);
325 } /* }}} void cj_tree_free */
327 static void cj_free (void *arg) /* {{{ */
328 {
329 cj_t *db;
331 DEBUG ("curl_json plugin: cj_free (arg = %p);", arg);
333 db = (cj_t *) arg;
335 if (db == NULL)
336 return;
338 if (db->curl != NULL)
339 curl_easy_cleanup (db->curl);
340 db->curl = NULL;
342 if (db->tree != NULL)
343 cj_tree_free (db->tree);
344 db->tree = NULL;
346 sfree (db->instance);
347 sfree (db->host);
349 sfree (db->url);
350 sfree (db->user);
351 sfree (db->pass);
352 sfree (db->credentials);
353 sfree (db->cacert);
355 sfree (db);
356 } /* }}} void cj_free */
358 /* Configuration handling functions {{{ */
360 static int cj_config_add_string (const char *name, char **dest, /* {{{ */
361 oconfig_item_t *ci)
362 {
363 if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_STRING))
364 {
365 WARNING ("curl_json plugin: `%s' needs exactly one string argument.", name);
366 return (-1);
367 }
369 sfree (*dest);
370 *dest = strdup (ci->values[0].value.string);
371 if (*dest == NULL)
372 return (-1);
374 return (0);
375 } /* }}} int cj_config_add_string */
377 static int cj_config_set_boolean (const char *name, int *dest, /* {{{ */
378 oconfig_item_t *ci)
379 {
380 if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_BOOLEAN))
381 {
382 WARNING ("curl_json plugin: `%s' needs exactly one boolean argument.", name);
383 return (-1);
384 }
386 *dest = ci->values[0].value.boolean ? 1 : 0;
388 return (0);
389 } /* }}} int cj_config_set_boolean */
391 static c_avl_tree_t *cj_avl_create(void)
392 {
393 return c_avl_create ((int (*) (const void *, const void *)) strcmp);
394 }
396 static int cj_config_add_key (cj_t *db, /* {{{ */
397 oconfig_item_t *ci)
398 {
399 cj_key_t *key;
400 int status;
401 int i;
403 if ((ci->values_num != 1)
404 || (ci->values[0].type != OCONFIG_TYPE_STRING))
405 {
406 WARNING ("curl_json plugin: The `Key' block "
407 "needs exactly one string argument.");
408 return (-1);
409 }
411 key = (cj_key_t *) malloc (sizeof (*key));
412 if (key == NULL)
413 {
414 ERROR ("curl_json plugin: malloc failed.");
415 return (-1);
416 }
417 memset (key, 0, sizeof (*key));
418 key->magic = CJ_KEY_MAGIC;
420 if (strcasecmp ("Key", ci->key) == 0)
421 {
422 status = cj_config_add_string ("Key", &key->path, ci);
423 if (status != 0)
424 {
425 sfree (key);
426 return (status);
427 }
428 }
429 else
430 {
431 ERROR ("curl_json plugin: cj_config: "
432 "Invalid key: %s", ci->key);
433 return (-1);
434 }
436 status = 0;
437 for (i = 0; i < ci->children_num; i++)
438 {
439 oconfig_item_t *child = ci->children + i;
441 if (strcasecmp ("Type", child->key) == 0)
442 status = cj_config_add_string ("Type", &key->type, child);
443 else if (strcasecmp ("Instance", child->key) == 0)
444 status = cj_config_add_string ("Instance", &key->instance, child);
445 else
446 {
447 WARNING ("curl_json plugin: Option `%s' not allowed here.", child->key);
448 status = -1;
449 }
451 if (status != 0)
452 break;
453 } /* for (i = 0; i < ci->children_num; i++) */
455 while (status == 0)
456 {
457 if (key->type == NULL)
458 {
459 WARNING ("curl_json plugin: `Type' missing in `Key' block.");
460 status = -1;
461 }
463 break;
464 } /* while (status == 0) */
466 /* store path in a tree that will match the json map structure, example:
467 * "httpd/requests/count",
468 * "httpd/requests/current" ->
469 * { "httpd": { "requests": { "count": $key, "current": $key } } }
470 */
471 if (status == 0)
472 {
473 char *ptr;
474 char *name;
475 char ent[PATH_MAX];
476 c_avl_tree_t *tree;
478 if (db->tree == NULL)
479 db->tree = cj_avl_create();
481 tree = db->tree;
482 name = key->path;
483 ptr = key->path;
484 if (*ptr == '/')
485 ++ptr;
487 name = ptr;
488 while (*ptr)
489 {
490 if (*ptr == '/')
491 {
492 c_avl_tree_t *value;
493 int len;
495 len = ptr-name;
496 if (len == 0)
497 break;
498 sstrncpy (ent, name, len+1);
500 if (c_avl_get (tree, ent, (void *) &value) != 0)
501 {
502 value = cj_avl_create ();
503 c_avl_insert (tree, strdup (ent), value);
504 }
506 tree = value;
507 name = ptr+1;
508 }
509 ++ptr;
510 }
511 if (*name)
512 c_avl_insert (tree, strdup(name), key);
513 else
514 {
515 ERROR ("curl_json plugin: invalid key: %s", key->path);
516 status = -1;
517 }
518 }
520 return (status);
521 } /* }}} int cj_config_add_key */
523 static int cj_init_curl (cj_t *db) /* {{{ */
524 {
525 db->curl = curl_easy_init ();
526 if (db->curl == NULL)
527 {
528 ERROR ("curl_json plugin: curl_easy_init failed.");
529 return (-1);
530 }
532 curl_easy_setopt (db->curl, CURLOPT_WRITEFUNCTION, cj_curl_callback);
533 curl_easy_setopt (db->curl, CURLOPT_WRITEDATA, db);
534 curl_easy_setopt (db->curl, CURLOPT_USERAGENT,
535 PACKAGE_NAME"/"PACKAGE_VERSION);
536 curl_easy_setopt (db->curl, CURLOPT_ERRORBUFFER, db->curl_errbuf);
537 curl_easy_setopt (db->curl, CURLOPT_URL, db->url);
539 if (db->user != NULL)
540 {
541 size_t credentials_size;
543 credentials_size = strlen (db->user) + 2;
544 if (db->pass != NULL)
545 credentials_size += strlen (db->pass);
547 db->credentials = (char *) malloc (credentials_size);
548 if (db->credentials == NULL)
549 {
550 ERROR ("curl_json plugin: malloc failed.");
551 return (-1);
552 }
554 ssnprintf (db->credentials, credentials_size, "%s:%s",
555 db->user, (db->pass == NULL) ? "" : db->pass);
556 curl_easy_setopt (db->curl, CURLOPT_USERPWD, db->credentials);
557 }
559 curl_easy_setopt (db->curl, CURLOPT_SSL_VERIFYPEER, db->verify_peer);
560 curl_easy_setopt (db->curl, CURLOPT_SSL_VERIFYHOST,
561 db->verify_host ? 2 : 0);
562 if (db->cacert != NULL)
563 curl_easy_setopt (db->curl, CURLOPT_CAINFO, db->cacert);
565 return (0);
566 } /* }}} int cj_init_curl */
568 static int cj_config_add_url (oconfig_item_t *ci) /* {{{ */
569 {
570 cj_t *db;
571 int status = 0;
572 int i;
574 if ((ci->values_num != 1)
575 || (ci->values[0].type != OCONFIG_TYPE_STRING))
576 {
577 WARNING ("curl_json plugin: The `URL' block "
578 "needs exactly one string argument.");
579 return (-1);
580 }
582 db = (cj_t *) malloc (sizeof (*db));
583 if (db == NULL)
584 {
585 ERROR ("curl_json plugin: malloc failed.");
586 return (-1);
587 }
588 memset (db, 0, sizeof (*db));
590 if (strcasecmp ("URL", ci->key) == 0)
591 {
592 status = cj_config_add_string ("URL", &db->url, ci);
593 if (status != 0)
594 {
595 sfree (db);
596 return (status);
597 }
598 }
599 else
600 {
601 ERROR ("curl_json plugin: cj_config: "
602 "Invalid key: %s", ci->key);
603 return (-1);
604 }
606 /* Fill the `cj_t' structure.. */
607 for (i = 0; i < ci->children_num; i++)
608 {
609 oconfig_item_t *child = ci->children + i;
611 if (strcasecmp ("Instance", child->key) == 0)
612 status = cj_config_add_string ("Instance", &db->instance, child);
613 else if (strcasecmp ("Host", child->key) == 0)
614 status = cj_config_add_string ("Host", &db->host, child);
615 else if (strcasecmp ("User", child->key) == 0)
616 status = cj_config_add_string ("User", &db->user, child);
617 else if (strcasecmp ("Password", child->key) == 0)
618 status = cj_config_add_string ("Password", &db->pass, child);
619 else if (strcasecmp ("VerifyPeer", child->key) == 0)
620 status = cj_config_set_boolean ("VerifyPeer", &db->verify_peer, child);
621 else if (strcasecmp ("VerifyHost", child->key) == 0)
622 status = cj_config_set_boolean ("VerifyHost", &db->verify_host, child);
623 else if (strcasecmp ("CACert", child->key) == 0)
624 status = cj_config_add_string ("CACert", &db->cacert, child);
625 else if (strcasecmp ("Key", child->key) == 0)
626 status = cj_config_add_key (db, child);
627 else
628 {
629 WARNING ("curl_json plugin: Option `%s' not allowed here.", child->key);
630 status = -1;
631 }
633 if (status != 0)
634 break;
635 }
637 if (status == 0)
638 {
639 if (db->tree == NULL)
640 {
641 WARNING ("curl_json plugin: No (valid) `Key' block "
642 "within `URL' block `%s'.", db->url);
643 status = -1;
644 }
645 if (status == 0)
646 status = cj_init_curl (db);
647 }
649 /* If all went well, register this database for reading */
650 if (status == 0)
651 {
652 user_data_t ud;
653 char cb_name[DATA_MAX_NAME_LEN];
655 if (db->instance == NULL)
656 db->instance = strdup("default");
658 DEBUG ("curl_json plugin: Registering new read callback: %s",
659 db->instance);
661 memset (&ud, 0, sizeof (ud));
662 ud.data = (void *) db;
663 ud.free_func = cj_free;
665 ssnprintf (cb_name, sizeof (cb_name), "curl_json-%s-%s",
666 db->instance, db->url);
668 plugin_register_complex_read (/* group = */ NULL, cb_name, cj_read,
669 /* interval = */ NULL, &ud);
670 }
671 else
672 {
673 cj_free (db);
674 return (-1);
675 }
677 return (0);
678 }
679 /* }}} int cj_config_add_database */
681 static int cj_config (oconfig_item_t *ci) /* {{{ */
682 {
683 int success;
684 int errors;
685 int status;
686 int i;
688 success = 0;
689 errors = 0;
691 for (i = 0; i < ci->children_num; i++)
692 {
693 oconfig_item_t *child = ci->children + i;
695 if (strcasecmp ("URL", child->key) == 0)
696 {
697 status = cj_config_add_url (child);
698 if (status == 0)
699 success++;
700 else
701 errors++;
702 }
703 else
704 {
705 WARNING ("curl_json plugin: Option `%s' not allowed here.", child->key);
706 errors++;
707 }
708 }
710 if ((success == 0) && (errors > 0))
711 {
712 ERROR ("curl_json plugin: All statements failed.");
713 return (-1);
714 }
716 return (0);
717 } /* }}} int cj_config */
719 /* }}} End of configuration handling functions */
721 static void cj_submit (cj_t *db, cj_key_t *key, value_t *value) /* {{{ */
722 {
723 value_list_t vl = VALUE_LIST_INIT;
724 char *host;
726 vl.values = value;
727 vl.values_len = 1;
729 if ((db->host == NULL)
730 || (strcmp ("", db->host) == 0)
731 || (strcmp (CJ_DEFAULT_HOST, db->host) == 0))
732 host = hostname_g;
733 else
734 host = db->host;
736 if (key->instance == NULL)
737 ssnprintf (vl.type_instance, sizeof (vl.type_instance), "%s-%s",
738 db->state[db->depth-1].name, db->state[db->depth].name);
739 else
740 sstrncpy (vl.type_instance, key->instance, sizeof (vl.type_instance));
742 sstrncpy (vl.host, host, sizeof (vl.host));
743 sstrncpy (vl.plugin, "curl_json", sizeof (vl.plugin));
744 sstrncpy (vl.plugin_instance, db->instance, sizeof (vl.plugin_instance));
745 sstrncpy (vl.type, key->type, sizeof (vl.type));
747 plugin_dispatch_values (&vl);
748 } /* }}} int cj_submit */
750 static int cj_curl_perform (cj_t *db, CURL *curl) /* {{{ */
751 {
752 int status;
753 long rc;
754 char *url;
755 yajl_handle yprev = db->yajl;
757 db->yajl = yajl_alloc (&ycallbacks, NULL, NULL, (void *)db);
758 if (db->yajl == NULL)
759 {
760 ERROR ("curl_json plugin: yajl_alloc failed.");
761 db->yajl = yprev;
762 return (-1);
763 }
765 status = curl_easy_perform (curl);
766 if (status != 0)
767 {
768 ERROR ("curl_json plugin: curl_easy_perform failed with status %i: %s (%s)",
769 status, db->curl_errbuf, url);
770 yajl_free (db->yajl);
771 db->yajl = yprev;
772 return (-1);
773 }
775 curl_easy_getinfo(curl, CURLINFO_EFFECTIVE_URL, &url);
776 curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &rc);
778 /* The response code is zero if a non-HTTP transport was used. */
779 if ((rc != 0) && (rc != 200))
780 {
781 ERROR ("curl_json plugin: curl_easy_perform failed with "
782 "response code %ld (%s)", rc, url);
783 yajl_free (db->yajl);
784 db->yajl = yprev;
785 return (-1);
786 }
788 status = yajl_parse_complete (db->yajl);
789 if (status != yajl_status_ok)
790 {
791 unsigned char *errmsg;
793 errmsg = yajl_get_error (db->yajl, /* verbose = */ 0,
794 /* jsonText = */ NULL, /* jsonTextLen = */ 0);
795 ERROR ("curl_json plugin: yajl_parse_complete failed: %s",
796 (char *) errmsg);
797 yajl_free_error (db->yajl, errmsg);
798 yajl_free (db->yajl);
799 db->yajl = yprev;
800 return (-1);
801 }
803 yajl_free (db->yajl);
804 db->yajl = yprev;
805 return (0);
806 } /* }}} int cj_curl_perform */
808 static int cj_read (user_data_t *ud) /* {{{ */
809 {
810 cj_t *db;
812 if ((ud == NULL) || (ud->data == NULL))
813 {
814 ERROR ("curl_json plugin: cj_read: Invalid user data.");
815 return (-1);
816 }
818 db = (cj_t *) ud->data;
820 db->depth = 0;
821 memset (&db->state, 0, sizeof(db->state));
822 db->state[db->depth].tree = db->tree;
823 db->key = NULL;
825 return cj_curl_perform (db, db->curl);
826 } /* }}} int cj_read */
828 void module_register (void)
829 {
830 plugin_register_complex_config ("curl_json", cj_config);
831 } /* void module_register */
833 /* vim: set sw=2 sts=2 et fdm=marker : */