2 * collectd - src/curl_json.c
3 * Copyright (C) 2009 Doug MacEachern
4 * Copyright (C) 2006-2013 Florian octo Forster
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.
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.
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
20 * Doug MacEachern <dougm at hyperic.com>
21 * Florian octo Forster <octo at collectd.org>
28 #include "utils_avltree.h"
29 #include "utils_complain.h"
30 #include "utils_curl_stats.h"
32 #include <sys/types.h>
35 #include <curl/curl.h>
37 #include <yajl/yajl_parse.h>
38 #if HAVE_YAJL_YAJL_VERSION_H
39 #include <yajl/yajl_version.h>
42 #if defined(YAJL_MAJOR) && (YAJL_MAJOR > 1)
43 #define HAVE_YAJL_V2 1
46 #define CJ_DEFAULT_HOST "localhost"
48 #define COUCH_MIN(x, y) ((x) < (y) ? (x) : (y))
51 typedef struct cj_key_s cj_key_t;
52 struct cj_key_s /* {{{ */
60 /* cj_tree_entry_t is a union of either a metric configuration ("key") or a tree
61 * mapping array indexes / map keys to a descendant cj_tree_entry_t*. */
63 enum { KEY, TREE } type;
70 /* cj_state_t is a stack providing the configuration relevant for the context
71 * that is currently being parsed. If entry->type == KEY, the parser should
72 * expect a metric (a numeric value). If entry->type == TREE, the parser should
73 * expect an array of map to descent into. If entry == NULL, no configuration
74 * exists for this part of the JSON structure. */
76 cj_tree_entry_t *entry;
79 char name[DATA_MAX_NAME_LEN];
97 struct curl_slist *headers;
104 char curl_errbuf[CURL_ERROR_SIZE];
109 cj_state_t state[YAJL_MAX_DEPTH];
111 typedef struct cj_s cj_t; /* }}} */
114 typedef size_t yajl_len_t;
116 typedef unsigned int yajl_len_t;
119 static int cj_read(user_data_t *ud);
120 static void cj_submit_impl(cj_t *db, cj_key_t *key, value_t *value);
122 /* cj_submit is a function pointer to cj_submit_impl, allowing the unit-test to
123 * overwrite which function is called. */
124 static void (*cj_submit)(cj_t *, cj_key_t *, value_t *) = cj_submit_impl;
126 static size_t cj_curl_callback(void *buf, /* {{{ */
127 size_t size, size_t nmemb, void *user_data) {
141 status = yajl_parse(db->yajl, (unsigned char *)buf, len);
142 if (status == yajl_status_ok)
145 else if (status == yajl_status_insufficient_data)
150 yajl_get_error(db->yajl, /* verbose = */ 1,
151 /* jsonText = */ (unsigned char *)buf, (unsigned int)len);
152 ERROR("curl_json plugin: yajl_parse failed: %s", msg);
153 yajl_free_error(db->yajl, msg);
154 return 0; /* abort write callback */
155 } /* }}} size_t cj_curl_callback */
157 static int cj_get_type(cj_key_t *key) {
161 const data_set_t *ds = plugin_get_ds(key->type);
163 static char type[DATA_MAX_NAME_LEN] = "!!!invalid!!!";
165 assert(key->type != NULL);
166 if (strcmp(type, key->type) != 0) {
167 ERROR("curl_json plugin: Unable to look up DS type \"%s\".", key->type);
168 sstrncpy(type, key->type, sizeof(type));
172 } else if (ds->ds_num > 1) {
173 static c_complain_t complaint = C_COMPLAIN_INIT_STATIC;
176 LOG_WARNING, &complaint,
177 "curl_json plugin: The type \"%s\" has more than one data source. "
178 "This is currently not supported. I will return the type of the "
179 "first data source, but this will likely lead to problems later on.",
183 return ds->ds[0].type;
186 /* cj_load_key loads the configuration for "key" from the parent context and
187 * sets either .key or .tree in the current context. */
188 static int cj_load_key(cj_t *db, char const *key) {
189 if (db == NULL || key == NULL || db->depth <= 0)
192 sstrncpy(db->state[db->depth].name, key, sizeof(db->state[db->depth].name));
194 if (db->state[db->depth - 1].entry == NULL ||
195 db->state[db->depth - 1].entry->type != TREE) {
199 c_avl_tree_t *tree = db->state[db->depth - 1].entry->tree;
200 cj_tree_entry_t *e = NULL;
202 if (c_avl_get(tree, key, (void *)&e) == 0) {
203 db->state[db->depth].entry = e;
204 } else if (c_avl_get(tree, CJ_ANY, (void *)&e) == 0) {
205 db->state[db->depth].entry = e;
207 db->state[db->depth].entry = NULL;
213 static void cj_advance_array(cj_t *db) {
214 if (!db->state[db->depth].in_array)
217 db->state[db->depth].index++;
219 char name[DATA_MAX_NAME_LEN];
220 snprintf(name, sizeof(name), "%d", db->state[db->depth].index);
221 cj_load_key(db, name);
225 #define CJ_CB_ABORT 0
226 #define CJ_CB_CONTINUE 1
228 static int cj_cb_boolean(void *ctx, int boolVal) {
229 cj_advance_array(ctx);
230 return CJ_CB_CONTINUE;
233 static int cj_cb_null(void *ctx) {
234 cj_advance_array(ctx);
235 return CJ_CB_CONTINUE;
238 static int cj_cb_number(void *ctx, const char *number, yajl_len_t number_len) {
239 cj_t *db = (cj_t *)ctx;
241 /* Create a null-terminated version of the string. */
242 char buffer[number_len + 1];
243 memcpy(buffer, number, number_len);
244 buffer[sizeof(buffer) - 1] = 0;
246 if (db->state[db->depth].entry == NULL ||
247 db->state[db->depth].entry->type != KEY) {
248 if (db->state[db->depth].entry != NULL) {
249 NOTICE("curl_json plugin: Found \"%s\", but the configuration expects a "
253 cj_advance_array(ctx);
254 return CJ_CB_CONTINUE;
257 cj_key_t *key = db->state[db->depth].entry->key;
259 int type = cj_get_type(key);
261 int status = parse_value(buffer, &vt, type);
263 NOTICE("curl_json plugin: Unable to parse number: \"%s\"", buffer);
264 cj_advance_array(ctx);
265 return CJ_CB_CONTINUE;
268 cj_submit(db, key, &vt);
269 cj_advance_array(ctx);
270 return CJ_CB_CONTINUE;
271 } /* int cj_cb_number */
273 /* Queries the key-tree of the parent context for "in_name" and, if found,
274 * updates the "key" field of the current context. Otherwise, "key" is set to
276 static int cj_cb_map_key(void *ctx, unsigned char const *in_name,
277 yajl_len_t in_name_len) {
278 char name[in_name_len + 1];
280 memmove(name, in_name, in_name_len);
281 name[sizeof(name) - 1] = 0;
283 if (cj_load_key(ctx, name) != 0)
286 return CJ_CB_CONTINUE;
289 static int cj_cb_string(void *ctx, const unsigned char *val, yajl_len_t len) {
290 /* Handle the string as if it was a number. */
291 return cj_cb_number(ctx, (const char *)val, len);
292 } /* int cj_cb_string */
294 static int cj_cb_end(void *ctx) {
295 cj_t *db = (cj_t *)ctx;
296 memset(&db->state[db->depth], 0, sizeof(db->state[db->depth]));
298 cj_advance_array(ctx);
299 return CJ_CB_CONTINUE;
302 static int cj_cb_start_map(void *ctx) {
303 cj_t *db = (cj_t *)ctx;
305 if ((db->depth + 1) >= YAJL_MAX_DEPTH) {
306 ERROR("curl_json plugin: %s depth exceeds max, aborting.",
307 db->url ? db->url : db->sock);
311 return CJ_CB_CONTINUE;
314 static int cj_cb_end_map(void *ctx) { return cj_cb_end(ctx); }
316 static int cj_cb_start_array(void *ctx) {
317 cj_t *db = (cj_t *)ctx;
319 if ((db->depth + 1) >= YAJL_MAX_DEPTH) {
320 ERROR("curl_json plugin: %s depth exceeds max, aborting.",
321 db->url ? db->url : db->sock);
325 db->state[db->depth].in_array = 1;
326 db->state[db->depth].index = 0;
328 cj_load_key(db, "0");
330 return CJ_CB_CONTINUE;
333 static int cj_cb_end_array(void *ctx) {
334 cj_t *db = (cj_t *)ctx;
335 db->state[db->depth].in_array = 0;
336 return cj_cb_end(ctx);
339 static yajl_callbacks ycallbacks = {
340 cj_cb_null, /* null */
341 cj_cb_boolean, /* boolean */
344 cj_cb_number, cj_cb_string, cj_cb_start_map, cj_cb_map_key,
345 cj_cb_end_map, cj_cb_start_array, cj_cb_end_array};
347 /* end yajl callbacks */
349 static void cj_key_free(cj_key_t *key) /* {{{ */
356 sfree(key->instance);
359 } /* }}} void cj_key_free */
361 static void cj_tree_free(c_avl_tree_t *tree) /* {{{ */
366 while (c_avl_pick(tree, (void *)&name, (void *)&e) == 0) {
372 cj_tree_free(e->tree);
377 } /* }}} void cj_tree_free */
379 static void cj_free(void *arg) /* {{{ */
383 DEBUG("curl_json plugin: cj_free (arg = %p);", arg);
390 if (db->curl != NULL)
391 curl_easy_cleanup(db->curl);
394 if (db->tree != NULL)
395 cj_tree_free(db->tree);
406 sfree(db->credentials);
408 sfree(db->post_body);
409 curl_slist_free_all(db->headers);
410 curl_stats_destroy(db->stats);
413 } /* }}} void cj_free */
415 /* Configuration handling functions {{{ */
417 static c_avl_tree_t *cj_avl_create(void) {
418 return c_avl_create((int (*)(const void *, const void *))strcmp);
421 static int cj_config_append_string(const char *name,
422 struct curl_slist **dest, /* {{{ */
423 oconfig_item_t *ci) {
424 struct curl_slist *temp = NULL;
425 if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_STRING)) {
426 WARNING("curl_json plugin: `%s' needs exactly one string argument.", name);
430 temp = curl_slist_append(*dest, ci->values[0].value.string);
437 } /* }}} int cj_config_append_string */
439 /* cj_append_key adds key to the configuration stored in db.
442 * "httpd/requests/count",
443 * "httpd/requests/current" ->
444 * { "httpd": { "requests": { "count": $key, "current": $key } } }
446 static int cj_append_key(cj_t *db, cj_key_t *key) { /* {{{ */
447 if (db->tree == NULL)
448 db->tree = cj_avl_create();
450 c_avl_tree_t *tree = db->tree;
452 char const *start = key->path;
457 while ((end = strchr(start, '/')) != NULL) {
460 size_t len = end - start;
464 len = COUCH_MIN(len, sizeof(name) - 1);
465 sstrncpy(name, start, len + 1);
468 if (c_avl_get(tree, name, (void *)&e) != 0) {
469 e = calloc(1, sizeof(*e));
473 e->tree = cj_avl_create();
475 c_avl_insert(tree, strdup(name), e);
485 if (strlen(start) == 0) {
486 ERROR("curl_json plugin: invalid key: %s", key->path);
490 cj_tree_entry_t *e = calloc(1, sizeof(*e));
496 c_avl_insert(tree, strdup(start), e);
498 } /* }}} int cj_append_key */
500 static int cj_config_add_key(cj_t *db, /* {{{ */
501 oconfig_item_t *ci) {
505 if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_STRING)) {
506 WARNING("curl_json plugin: The `Key' block "
507 "needs exactly one string argument.");
511 key = calloc(1, sizeof(*key));
513 ERROR("curl_json plugin: calloc failed.");
517 if (strcasecmp("Key", ci->key) == 0) {
518 status = cf_util_get_string(ci, &key->path);
524 ERROR("curl_json plugin: cj_config: "
532 for (int i = 0; i < ci->children_num; i++) {
533 oconfig_item_t *child = ci->children + i;
535 if (strcasecmp("Type", child->key) == 0)
536 status = cf_util_get_string(child, &key->type);
537 else if (strcasecmp("Instance", child->key) == 0)
538 status = cf_util_get_string(child, &key->instance);
540 WARNING("curl_json plugin: Option `%s' not allowed here.", child->key);
546 } /* for (i = 0; i < ci->children_num; i++) */
553 if (key->type == NULL) {
554 WARNING("curl_json plugin: `Type' missing in `Key' block.");
559 status = cj_append_key(db, key);
566 } /* }}} int cj_config_add_key */
568 static int cj_init_curl(cj_t *db) /* {{{ */
570 db->curl = curl_easy_init();
571 if (db->curl == NULL) {
572 ERROR("curl_json plugin: curl_easy_init failed.");
576 curl_easy_setopt(db->curl, CURLOPT_NOSIGNAL, 1L);
577 curl_easy_setopt(db->curl, CURLOPT_WRITEFUNCTION, cj_curl_callback);
578 curl_easy_setopt(db->curl, CURLOPT_WRITEDATA, db);
579 curl_easy_setopt(db->curl, CURLOPT_USERAGENT, COLLECTD_USERAGENT);
580 curl_easy_setopt(db->curl, CURLOPT_ERRORBUFFER, db->curl_errbuf);
581 curl_easy_setopt(db->curl, CURLOPT_FOLLOWLOCATION, 1L);
582 curl_easy_setopt(db->curl, CURLOPT_MAXREDIRS, 50L);
584 if (db->user != NULL) {
585 #ifdef HAVE_CURLOPT_USERNAME
586 curl_easy_setopt(db->curl, CURLOPT_USERNAME, db->user);
587 curl_easy_setopt(db->curl, CURLOPT_PASSWORD,
588 (db->pass == NULL) ? "" : db->pass);
590 size_t credentials_size;
592 credentials_size = strlen(db->user) + 2;
593 if (db->pass != NULL)
594 credentials_size += strlen(db->pass);
596 db->credentials = malloc(credentials_size);
597 if (db->credentials == NULL) {
598 ERROR("curl_json plugin: malloc failed.");
602 snprintf(db->credentials, credentials_size, "%s:%s", db->user,
603 (db->pass == NULL) ? "" : db->pass);
604 curl_easy_setopt(db->curl, CURLOPT_USERPWD, db->credentials);
608 curl_easy_setopt(db->curl, CURLOPT_HTTPAUTH, CURLAUTH_DIGEST);
611 curl_easy_setopt(db->curl, CURLOPT_SSL_VERIFYPEER, (long)db->verify_peer);
612 curl_easy_setopt(db->curl, CURLOPT_SSL_VERIFYHOST, db->verify_host ? 2L : 0L);
613 if (db->cacert != NULL)
614 curl_easy_setopt(db->curl, CURLOPT_CAINFO, db->cacert);
615 if (db->headers != NULL)
616 curl_easy_setopt(db->curl, CURLOPT_HTTPHEADER, db->headers);
617 if (db->post_body != NULL)
618 curl_easy_setopt(db->curl, CURLOPT_POSTFIELDS, db->post_body);
620 #ifdef HAVE_CURLOPT_TIMEOUT_MS
621 if (db->timeout >= 0)
622 curl_easy_setopt(db->curl, CURLOPT_TIMEOUT_MS, (long)db->timeout);
623 else if (db->interval > 0)
624 curl_easy_setopt(db->curl, CURLOPT_TIMEOUT_MS,
625 (long)CDTIME_T_TO_MS(db->interval));
627 curl_easy_setopt(db->curl, CURLOPT_TIMEOUT_MS,
628 (long)CDTIME_T_TO_MS(plugin_get_interval()));
632 } /* }}} int cj_init_curl */
634 static int cj_config_add_url(oconfig_item_t *ci) /* {{{ */
639 if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_STRING)) {
640 WARNING("curl_json plugin: The `URL' block "
641 "needs exactly one string argument.");
645 db = calloc(1, sizeof(*db));
647 ERROR("curl_json plugin: calloc failed.");
653 if (strcasecmp("URL", ci->key) == 0)
654 status = cf_util_get_string(ci, &db->url);
655 else if (strcasecmp("Sock", ci->key) == 0)
656 status = cf_util_get_string(ci, &db->sock);
658 ERROR("curl_json plugin: cj_config: "
669 /* Fill the `cj_t' structure.. */
670 for (int i = 0; i < ci->children_num; i++) {
671 oconfig_item_t *child = ci->children + i;
673 if (strcasecmp("Instance", child->key) == 0)
674 status = cf_util_get_string(child, &db->instance);
675 else if (strcasecmp("Host", child->key) == 0)
676 status = cf_util_get_string(child, &db->host);
677 else if (db->url && strcasecmp("User", child->key) == 0)
678 status = cf_util_get_string(child, &db->user);
679 else if (db->url && strcasecmp("Password", child->key) == 0)
680 status = cf_util_get_string(child, &db->pass);
681 else if (strcasecmp("Digest", child->key) == 0)
682 status = cf_util_get_boolean(child, &db->digest);
683 else if (db->url && strcasecmp("VerifyPeer", child->key) == 0)
684 status = cf_util_get_boolean(child, &db->verify_peer);
685 else if (db->url && strcasecmp("VerifyHost", child->key) == 0)
686 status = cf_util_get_boolean(child, &db->verify_host);
687 else if (db->url && strcasecmp("CACert", child->key) == 0)
688 status = cf_util_get_string(child, &db->cacert);
689 else if (db->url && strcasecmp("Header", child->key) == 0)
690 status = cj_config_append_string("Header", &db->headers, child);
691 else if (db->url && strcasecmp("Post", child->key) == 0)
692 status = cf_util_get_string(child, &db->post_body);
693 else if (strcasecmp("Key", child->key) == 0)
694 status = cj_config_add_key(db, child);
695 else if (strcasecmp("Interval", child->key) == 0)
696 status = cf_util_get_cdtime(child, &db->interval);
697 else if (strcasecmp("Timeout", child->key) == 0)
698 status = cf_util_get_int(child, &db->timeout);
699 else if (strcasecmp("Statistics", child->key) == 0) {
700 db->stats = curl_stats_from_config(child);
701 if (db->stats == NULL)
704 WARNING("curl_json plugin: Option `%s' not allowed here.", child->key);
713 if (db->tree == NULL) {
714 WARNING("curl_json plugin: No (valid) `Key' block within `%s' \"`%s'\".",
715 db->url ? "URL" : "Sock", db->url ? db->url : db->sock);
718 if (status == 0 && db->url)
719 status = cj_init_curl(db);
722 /* If all went well, register this database for reading */
726 if (db->instance == NULL)
727 db->instance = strdup("default");
729 DEBUG("curl_json plugin: Registering new read callback: %s", db->instance);
731 cb_name = ssnprintf_alloc("curl_json-%s-%s", db->instance,
732 db->url ? db->url : db->sock);
734 plugin_register_complex_read(/* group = */ NULL, cb_name, cj_read,
735 /* interval = */ db->interval,
737 .data = db, .free_func = cj_free,
747 /* }}} int cj_config_add_database */
749 static int cj_config(oconfig_item_t *ci) /* {{{ */
758 for (int i = 0; i < ci->children_num; i++) {
759 oconfig_item_t *child = ci->children + i;
761 if (strcasecmp("Sock", child->key) == 0 ||
762 strcasecmp("URL", child->key) == 0) {
763 status = cj_config_add_url(child);
769 WARNING("curl_json plugin: Option `%s' not allowed here.", child->key);
774 if ((success == 0) && (errors > 0)) {
775 ERROR("curl_json plugin: All statements failed.");
780 } /* }}} int cj_config */
782 /* }}} End of configuration handling functions */
784 static const char *cj_host(cj_t *db) /* {{{ */
786 if ((db->host == NULL) || (strcmp("", db->host) == 0) ||
787 (strcmp(CJ_DEFAULT_HOST, db->host) == 0))
792 static void cj_submit_impl(cj_t *db, cj_key_t *key, value_t *value) /* {{{ */
794 value_list_t vl = VALUE_LIST_INIT;
799 if (key->instance == NULL) {
801 for (int i = 0; i < db->depth; i++)
802 len += snprintf(vl.type_instance + len, sizeof(vl.type_instance) - len,
803 i ? "-%s" : "%s", db->state[i + 1].name);
805 sstrncpy(vl.type_instance, key->instance, sizeof(vl.type_instance));
807 sstrncpy(vl.host, cj_host(db), sizeof(vl.host));
808 sstrncpy(vl.plugin, "curl_json", sizeof(vl.plugin));
809 sstrncpy(vl.plugin_instance, db->instance, sizeof(vl.plugin_instance));
810 sstrncpy(vl.type, key->type, sizeof(vl.type));
812 if (db->interval > 0)
813 vl.interval = db->interval;
815 plugin_dispatch_values(&vl);
816 } /* }}} int cj_submit_impl */
818 static int cj_sock_perform(cj_t *db) /* {{{ */
821 struct sockaddr_un sa_unix = {
822 .sun_family = AF_UNIX,
824 sstrncpy(sa_unix.sun_path, db->sock, sizeof(sa_unix.sun_path));
826 int fd = socket(AF_UNIX, SOCK_STREAM, 0);
829 if (connect(fd, (struct sockaddr *)&sa_unix, sizeof(sa_unix)) < 0) {
830 ERROR("curl_json plugin: connect(%s) failed: %s",
831 (db->sock != NULL) ? db->sock : "<null>",
832 sstrerror(errno, errbuf, sizeof(errbuf)));
839 unsigned char buffer[4096];
840 red = read(fd, buffer, sizeof(buffer));
842 ERROR("curl_json plugin: read(%s) failed: %s",
843 (db->sock != NULL) ? db->sock : "<null>",
844 sstrerror(errno, errbuf, sizeof(errbuf)));
848 if (!cj_curl_callback(buffer, red, 1, db))
853 } /* }}} int cj_sock_perform */
855 static int cj_curl_perform(cj_t *db) /* {{{ */
861 curl_easy_setopt(db->curl, CURLOPT_URL, db->url);
863 status = curl_easy_perform(db->curl);
864 if (status != CURLE_OK) {
865 ERROR("curl_json plugin: curl_easy_perform failed with status %i: %s (%s)",
866 status, db->curl_errbuf, db->url);
869 if (db->stats != NULL)
870 curl_stats_dispatch(db->stats, db->curl, cj_host(db), "curl_json",
873 curl_easy_getinfo(db->curl, CURLINFO_EFFECTIVE_URL, &url);
874 curl_easy_getinfo(db->curl, CURLINFO_RESPONSE_CODE, &rc);
876 /* The response code is zero if a non-HTTP transport was used. */
877 if ((rc != 0) && (rc != 200)) {
878 ERROR("curl_json plugin: curl_easy_perform failed with "
879 "response code %ld (%s)",
884 } /* }}} int cj_curl_perform */
886 static int cj_perform(cj_t *db) /* {{{ */
889 yajl_handle yprev = db->yajl;
891 db->yajl = yajl_alloc(&ycallbacks,
893 /* alloc funcs = */ NULL,
895 /* alloc funcs = */ NULL, NULL,
897 /* context = */ (void *)db);
898 if (db->yajl == NULL) {
899 ERROR("curl_json plugin: yajl_alloc failed.");
905 status = cj_curl_perform(db);
907 status = cj_sock_perform(db);
915 status = yajl_complete_parse(db->yajl);
917 status = yajl_parse_complete(db->yajl);
919 if (status != yajl_status_ok) {
920 unsigned char *errmsg;
922 errmsg = yajl_get_error(db->yajl, /* verbose = */ 0,
923 /* jsonText = */ NULL, /* jsonTextLen = */ 0);
924 ERROR("curl_json plugin: yajl_parse_complete failed: %s", (char *)errmsg);
925 yajl_free_error(db->yajl, errmsg);
934 } /* }}} int cj_perform */
936 static int cj_read(user_data_t *ud) /* {{{ */
940 if ((ud == NULL) || (ud->data == NULL)) {
941 ERROR("curl_json plugin: cj_read: Invalid user data.");
945 db = (cj_t *)ud->data;
948 memset(&db->state, 0, sizeof(db->state));
950 /* This is not a compound literal because EPEL6's GCC is not cool enough to
951 * handle anonymous unions within compound literals. */
952 cj_tree_entry_t root = {0};
954 root.tree = db->tree;
955 db->state[0].entry = &root;
957 int status = cj_perform(db);
959 db->state[0].entry = NULL;
962 } /* }}} int cj_read */
964 static int cj_init(void) /* {{{ */
966 /* Call this while collectd is still single-threaded to avoid
967 * initialization issues in libgcrypt. */
968 curl_global_init(CURL_GLOBAL_SSL);
970 } /* }}} int cj_init */
972 void module_register(void) {
973 plugin_register_complex_config("curl_json", cj_config);
974 plugin_register_init("curl_json", cj_init);
975 } /* void module_register */