char *buffer;
size_t buffer_size;
int status;
+ char errbuf[1024];
char file[4096];
char *endptr;
status = OW_get (file, &buffer, &buffer_size);
if (status < 0)
{
- ERROR ("onewire plugin: OW_get (%s/%s) failed. status = %#x;",
- path, family_info->features[i].filename, status);
+ ERROR ("onewire plugin: OW_get (%s/%s) failed. error = %s;",
+ path, family_info->features[i].filename, sstrerror(errno, errbuf, sizeof (errbuf)));
return (-1);
}
DEBUG ("Read onewire device %s as %s", file, buffer);
char *buffer;
size_t buffer_size;
int status;
+ char errbuf[1024];
char *buffer_ptr;
char *dummy;
status = OW_get (path, &buffer, &buffer_size);
if (status < 0)
{
- ERROR ("onewire plugin: OW_get (%s) failed. status = %#x;",
- path, status);
+ ERROR ("onewire plugin: OW_get (%s) failed. error = %s;",
+ path, sstrerror(errno, errbuf, sizeof (errbuf)));
return (-1);
}
DEBUG ("onewire plugin: OW_get (%s) returned: %s",
char *buffer;
size_t buffer_size;
int status;
+ char errbuf[1024];
char *endptr;
direct_access_element_t *traverse;
status = OW_get (traverse->path, &buffer, &buffer_size);
if (status < 0)
{
- ERROR ("onewire plugin: OW_get (%s) failed. status = %#x;",
+ ERROR ("onewire plugin: OW_get (%s) failed. status = %s;",
traverse->path,
- status);
+ sstrerror(errno, errbuf, sizeof (errbuf)));
return (-1);
}
DEBUG ("onewire plugin: Read onewire device %s as %s", traverse->path, buffer);
static int cow_init (void)
{
int status;
+ char errbuf[1024];
if (device_g == NULL)
{
status = (int) OW_init (device_g);
if (status != 0)
{
- ERROR ("onewire plugin: OW_init(%s) failed: %i.", device_g, status);
+ ERROR ("onewire plugin: OW_init(%s) failed: %s.", device_g, sstrerror(errno, errbuf, sizeof (errbuf)));
return (1);
}
{
regex_t re;
char *replacement;
- int may_be_empty;
+ _Bool may_be_empty;
tr_action_t *next;
};
+struct tr_meta_data_action_s;
+typedef struct tr_meta_data_action_s tr_meta_data_action_t;
+struct tr_meta_data_action_s
+{
+ char *key;
+ regex_t re;
+ char *replacement;
+
+ tr_meta_data_action_t *next;
+};
+
struct tr_data_s
{
tr_action_t *host;
tr_action_t *plugin_instance;
/* tr_action_t *type; */
tr_action_t *type_instance;
+ tr_meta_data_action_t *meta;
};
typedef struct tr_data_s tr_data_t;
sfree (act);
} /* }}} void tr_action_destroy */
+static void tr_meta_data_action_destroy (tr_meta_data_action_t *act) /* {{{ */
+{
+ if (act == NULL)
+ return;
+
+ sfree (act->key);
+ regfree (&act->re);
+ sfree (act->replacement);
+
+ if (act->next != NULL)
+ tr_meta_data_action_destroy (act->next);
+
+ sfree (act);
+} /* }}} void tr_meta_data_action_destroy */
+
static int tr_config_add_action (tr_action_t **dest, /* {{{ */
- const oconfig_item_t *ci, int may_be_empty)
+ const oconfig_item_t *ci, _Bool may_be_empty)
{
tr_action_t *act;
int status;
if (act->replacement == NULL)
{
ERROR ("tr_config_add_action: tr_strdup failed.");
- regfree (&act->re);
- sfree (act);
+ tr_action_destroy (act);
return (-ENOMEM);
}
return (0);
} /* }}} int tr_config_add_action */
+static int tr_config_add_meta_action (tr_meta_data_action_t **dest, /* {{{ */
+ const oconfig_item_t *ci, _Bool should_delete)
+{
+ tr_meta_data_action_t *act;
+ int status;
+
+ if (dest == NULL)
+ return (-EINVAL);
+
+ if (should_delete)
+ {
+ if ((ci->values_num != 2)
+ || (ci->values[0].type != OCONFIG_TYPE_STRING)
+ || (ci->values[1].type != OCONFIG_TYPE_STRING))
+ {
+ ERROR ("Target `replace': The `%s' option requires exactly two string "
+ "arguments.", ci->key);
+ return (-1);
+ }
+ }
+ else
+ {
+ if ((ci->values_num != 3)
+ || (ci->values[0].type != OCONFIG_TYPE_STRING)
+ || (ci->values[1].type != OCONFIG_TYPE_STRING)
+ || (ci->values[2].type != OCONFIG_TYPE_STRING))
+ {
+ ERROR ("Target `replace': The `%s' option requires exactly three string "
+ "arguments.", ci->key);
+ return (-1);
+ }
+ }
+
+ if (strlen (ci->values[0].value.string) == 0)
+ {
+ ERROR ("Target `replace': The `%s' option does not accept empty string as "
+ "first argument.", ci->key);
+ return (-1);
+ }
+
+ act = calloc (1, sizeof (*act));
+ if (act == NULL)
+ {
+ ERROR ("tr_config_add_meta_action: calloc failed.");
+ return (-ENOMEM);
+ }
+
+ act->key = NULL;
+ act->replacement = NULL;
+
+ status = regcomp (&act->re, ci->values[1].value.string, REG_EXTENDED);
+ if (status != 0)
+ {
+ char errbuf[1024] = "";
+
+ /* regerror assures null termination. */
+ regerror (status, &act->re, errbuf, sizeof (errbuf));
+ ERROR ("Target `replace': Compiling the regular expression `%s' "
+ "failed: %s.",
+ ci->values[1].value.string, errbuf);
+ sfree (act->key);
+ sfree (act);
+ return (-EINVAL);
+ }
+
+ act->key = tr_strdup (ci->values[0].value.string);
+ if (act->key == NULL)
+ {
+ ERROR ("tr_config_add_meta_action: tr_strdup failed.");
+ tr_meta_data_action_destroy (act);
+ return (-ENOMEM);
+ }
+
+ if (!should_delete) {
+ act->replacement = tr_strdup (ci->values[2].value.string);
+ if (act->replacement == NULL)
+ {
+ ERROR ("tr_config_add_meta_action: tr_strdup failed.");
+ tr_meta_data_action_destroy (act);
+ return (-ENOMEM);
+ }
+ }
+
+ /* Insert action at end of list. */
+ if (*dest == NULL)
+ *dest = act;
+ else
+ {
+ tr_meta_data_action_t *prev;
+
+ prev = *dest;
+ while (prev->next != NULL)
+ prev = prev->next;
+
+ prev->next = act;
+ }
+
+ return (0);
+} /* }}} int tr_config_add_meta_action */
+
static int tr_action_invoke (tr_action_t *act_head, /* {{{ */
- char *buffer_in, size_t buffer_in_size, int may_be_empty)
+ char *buffer_in, size_t buffer_in_size, _Bool may_be_empty)
{
int status;
char buffer[DATA_MAX_NAME_LEN];
return (0);
} /* }}} int tr_action_invoke */
+static int tr_meta_data_action_invoke ( /* {{{ */
+ tr_meta_data_action_t *act_head, meta_data_t **dest)
+{
+ int status;
+ regmatch_t matches[8] = { [0] = { 0 } };
+
+ if (act_head == NULL)
+ return (-EINVAL);
+
+ if ((*dest) == NULL) /* nothing to do */
+ return (0);
+
+ for (tr_meta_data_action_t *act = act_head; act != NULL; act = act->next)
+ {
+ char temp[DATA_MAX_NAME_LEN];
+ char *subst_status;
+ int value_type;
+ int meta_data_status;
+ char *value;
+ meta_data_t *result;
+
+ value_type = meta_data_type (*dest, act->key);
+ if (value_type == 0) /* not found */
+ continue;
+ if (value_type != MD_TYPE_STRING)
+ {
+ WARNING ("Target `replace': Attempting replace on metadata key `%s', "
+ "which isn't a string.",
+ act->key);
+ continue;
+ }
+
+ meta_data_status = meta_data_get_string (*dest, act->key, &value);
+ if (meta_data_status != 0)
+ {
+ ERROR ("Target `replace': Unable to retrieve metadata value for `%s'.",
+ act->key);
+ return (meta_data_status);
+ }
+
+ DEBUG ("target_replace plugin: tr_meta_data_action_invoke: `%s' "
+ "old value = `%s'", act->key, value);
+
+ status = regexec (&act->re, value,
+ STATIC_ARRAY_SIZE (matches), matches,
+ /* flags = */ 0);
+ if (status == REG_NOMATCH)
+ {
+ sfree (value);
+ continue;
+ }
+ else if (status != 0)
+ {
+ char errbuf[1024] = "";
+
+ regerror (status, &act->re, errbuf, sizeof (errbuf));
+ ERROR ("Target `replace': Executing a regular expression failed: %s.",
+ errbuf);
+ sfree (value);
+ continue;
+ }
+
+ if (act->replacement == NULL)
+ {
+ /* no replacement; delete the key */
+ DEBUG ("target_replace plugin: tr_meta_data_action_invoke: "
+ "deleting `%s'", act->key);
+ meta_data_delete (*dest, act->key);
+ sfree (value);
+ continue;
+ }
+
+ subst_status = subst (temp, sizeof (temp), value,
+ (size_t) matches[0].rm_so, (size_t) matches[0].rm_eo, act->replacement);
+ if (subst_status == NULL)
+ {
+ ERROR ("Target `replace': subst (value = %s, start = %zu, end = %zu, "
+ "replacement = %s) failed.",
+ value, (size_t) matches[0].rm_so, (size_t) matches[0].rm_eo,
+ act->replacement);
+ sfree (value);
+ continue;
+ }
+
+ DEBUG ("target_replace plugin: tr_meta_data_action_invoke: `%s' "
+ "value `%s' -> `%s'", act->key, value, temp);
+
+ if ((result = meta_data_create()) == NULL)
+ {
+ ERROR ("Target `replace': failed to create metadata for `%s'.",
+ act->key);
+ sfree (value);
+ return (-ENOMEM);
+ }
+
+ meta_data_status = meta_data_add_string (result, act->key, temp);
+ if (meta_data_status != 0)
+ {
+ ERROR ("Target `replace': Unable to set metadata value for `%s'.",
+ act->key);
+ meta_data_destroy (result);
+ sfree (value);
+ return (meta_data_status);
+ }
+
+ meta_data_clone_merge (dest, result);
+ meta_data_destroy (result);
+ sfree (value);
+ } /* for (act = act_head; act != NULL; act = act->next) */
+
+ return (0);
+} /* }}} int tr_meta_data_action_invoke */
+
static int tr_destroy (void **user_data) /* {{{ */
{
tr_data_t *data;
tr_action_destroy (data->plugin_instance);
/* tr_action_destroy (data->type); */
tr_action_destroy (data->type_instance);
+ tr_meta_data_action_destroy (data->meta);
sfree (data);
return (0);
data->plugin_instance = NULL;
/* data->type = NULL; */
data->type_instance = NULL;
+ data->meta = NULL;
status = 0;
for (int i = 0; i < ci->children_num; i++)
else if (strcasecmp ("TypeInstance", child->key) == 0)
status = tr_config_add_action (&data->type_instance, child,
/* may be empty = */ 1);
+ else if (strcasecmp ("MetaData", child->key) == 0)
+ status = tr_config_add_meta_action (&data->meta, child,
+ /* should delete = */ 0);
+ else if (strcasecmp ("DeleteMetaData", child->key) == 0)
+ status = tr_config_add_meta_action (&data->meta, child,
+ /* should delete = */ 1);
else
{
ERROR ("Target `replace': The `%s' configuration option is not understood "
&& (data->plugin == NULL)
&& (data->plugin_instance == NULL)
/* && (data->type == NULL) */
- && (data->type_instance == NULL))
+ && (data->type_instance == NULL)
+ && (data->meta == NULL))
{
ERROR ("Target `replace': You need to set at least one of `Host', "
"`Plugin', `PluginInstance' or `TypeInstance'.");
return (-EINVAL);
}
+ if (data->meta != NULL)
+ {
+ tr_meta_data_action_invoke (data->meta, &(vl->meta));
+ }
+
#define HANDLE_FIELD(f,e) \
if (data->f != NULL) \
tr_action_invoke (data->f, vl->f, sizeof (vl->f), e)
HANDLE_FIELD (host, 0);
HANDLE_FIELD (plugin, 0);
HANDLE_FIELD (plugin_instance, 1);
- /* HANDLE_FIELD (type); */
+ /* HANDLE_FIELD (type, 0); */
HANDLE_FIELD (type_instance, 1);
return (FC_TARGET_CONTINUE);
#include "plugin.h"
#include "utils_format_graphite.h"
+#include "utils_format_json.h"
#include <netdb.h>
-#define WL_BUF_SIZE 8192
+#define WL_BUF_SIZE 16384
-static int wl_write_messages (const data_set_t *ds, const value_list_t *vl)
+#define WL_FORMAT_GRAPHITE 1
+#define WL_FORMAT_JSON 2
+
+/* Plugin:WriteLog has to also operate without a config, so use a global. */
+int wl_format = WL_FORMAT_GRAPHITE;
+
+static int wl_write_graphite (const data_set_t *ds, const value_list_t *vl)
{
char buffer[WL_BUF_SIZE] = { 0 };
int status;
if (0 != strcmp (ds->type, vl->type))
{
- ERROR ("write_log plugin: DS type does not match "
- "value list type");
+ ERROR ("write_log plugin: DS type does not match value list type");
return -1;
}
INFO ("write_log values:\n%s", buffer);
return (0);
-} /* int wl_write_messages */
+} /* int wl_write_graphite */
+
+static int wl_write_json (const data_set_t *ds, const value_list_t *vl)
+{
+ char buffer[WL_BUF_SIZE] = { 0 };
+ size_t bfree = sizeof(buffer);
+ size_t bfill = 0;
+
+ if (0 != strcmp (ds->type, vl->type))
+ {
+ ERROR ("write_log plugin: DS type does not match value list type");
+ return -1;
+ }
+
+ format_json_initialize(buffer, &bfill, &bfree);
+ format_json_value_list(buffer, &bfill, &bfree, ds, vl,
+ /* store rates = */ 0);
+ format_json_finalize(buffer, &bfill, &bfree);
+
+ INFO ("write_log values:\n%s", buffer);
+
+ return (0);
+} /* int wl_write_json */
static int wl_write (const data_set_t *ds, const value_list_t *vl,
__attribute__ ((unused)) user_data_t *user_data)
{
- int status;
+ int status = 0;
- status = wl_write_messages (ds, vl);
+ if (wl_format == WL_FORMAT_GRAPHITE)
+ {
+ status = wl_write_graphite (ds, vl);
+ }
+ else if (wl_format == WL_FORMAT_JSON)
+ {
+ status = wl_write_json (ds, vl);
+ }
return (status);
}
+static int wl_config (oconfig_item_t *ci) /* {{{ */
+{
+ _Bool format_seen = 0;
+
+ for (int i = 0; i < ci->children_num; i++)
+ {
+ oconfig_item_t *child = ci->children + i;
+
+ if (strcasecmp ("Format", child->key) == 0)
+ {
+ char str[16];
+
+ if (cf_util_get_string_buffer (child, str, sizeof (str)) != 0)
+ continue;
+
+ if (format_seen)
+ {
+ WARNING ("write_log plugin: Redefining option `%s'.",
+ child->key);
+ }
+ format_seen = 1;
+
+ if (strcasecmp ("Graphite", str) == 0)
+ wl_format = WL_FORMAT_GRAPHITE;
+ else if (strcasecmp ("JSON", str) == 0)
+ wl_format = WL_FORMAT_JSON;
+ else
+ {
+ ERROR ("write_log plugin: Unknown format `%s' for option `%s'.",
+ str, child->key);
+ return (-EINVAL);
+ }
+ }
+ else
+ {
+ ERROR ("write_log plugin: Invalid configuration option: `%s'.",
+ child->key);
+ return (-EINVAL);
+ }
+ }
+
+ return (0);
+} /* }}} int wl_config */
+
void module_register (void)
{
+ plugin_register_complex_config ("write_log", wl_config);
+ /* If config is supplied, the global wl_format will be set. */
plugin_register_write ("write_log", wl_write, NULL);
}
projects / collectd.git / commitdiff