![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
diff --git a/src/match_regex.c b/src/match_regex.c
--- a/src/match_regex.c
+++ /dev/null
@@ -1,318 +0,0 @@
-/**
- * collectd - src/match_regex.c
- * Copyright (C) 2008 Sebastian Harl
- * Copyright (C) 2008 Florian Forster
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- * Sebastian Harl <sh at tokkee.org>
- * Florian Forster <octo at collectd.org>
- **/
-
-/*
- * This module allows to filter and rewrite value lists based on
- * Perl-compatible regular expressions.
- */
-
-#include "collectd.h"
-#include "filter_chain.h"
-
-#include <sys/types.h>
-#include <regex.h>
-
-#define log_err(...) ERROR ("`regex' match: " __VA_ARGS__)
-#define log_warn(...) WARNING ("`regex' match: " __VA_ARGS__)
-
-/*
- * private data types
- */
-
-struct mr_regex_s;
-typedef struct mr_regex_s mr_regex_t;
-struct mr_regex_s
-{
- regex_t re;
- char *re_str;
-
- mr_regex_t *next;
-};
-
-struct mr_match_s;
-typedef struct mr_match_s mr_match_t;
-struct mr_match_s
-{
- mr_regex_t *host;
- mr_regex_t *plugin;
- mr_regex_t *plugin_instance;
- mr_regex_t *type;
- mr_regex_t *type_instance;
- _Bool invert;
-};
-
-/*
- * internal helper functions
- */
-static void mr_free_regex (mr_regex_t *r) /* {{{ */
-{
- if (r == NULL)
- return;
-
- regfree (&r->re);
- memset (&r->re, 0, sizeof (r->re));
- free (r->re_str);
-
- if (r->next != NULL)
- mr_free_regex (r->next);
-} /* }}} void mr_free_regex */
-
-static void mr_free_match (mr_match_t *m) /* {{{ */
-{
- if (m == NULL)
- return;
-
- mr_free_regex (m->host);
- mr_free_regex (m->plugin);
- mr_free_regex (m->plugin_instance);
- mr_free_regex (m->type);
- mr_free_regex (m->type_instance);
-
- free (m);
-} /* }}} void mr_free_match */
-
-static int mr_match_regexen (mr_regex_t *re_head, /* {{{ */
- const char *string)
-{
- mr_regex_t *re;
-
- if (re_head == NULL)
- return (FC_MATCH_MATCHES);
-
- for (re = re_head; re != NULL; re = re->next)
- {
- int status;
-
- status = regexec (&re->re, string,
- /* nmatch = */ 0, /* pmatch = */ NULL,
- /* eflags = */ 0);
- if (status == 0)
- {
- DEBUG ("regex match: Regular expression `%s' matches `%s'.",
- re->re_str, string);
- }
- else
- {
- DEBUG ("regex match: Regular expression `%s' does not match `%s'.",
- re->re_str, string);
- return (FC_MATCH_NO_MATCH);
- }
-
- }
-
- return (FC_MATCH_MATCHES);
-} /* }}} int mr_match_regexen */
-
-static int mr_config_add_regex (mr_regex_t **re_head, /* {{{ */
- oconfig_item_t *ci)
-{
- mr_regex_t *re;
- int status;
-
- if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_STRING))
- {
- log_warn ("`%s' needs exactly one string argument.", ci->key);
- return (-1);
- }
-
- re = (mr_regex_t *) malloc (sizeof (*re));
- if (re == NULL)
- {
- log_err ("mr_config_add_regex: malloc failed.");
- return (-1);
- }
- memset (re, 0, sizeof (*re));
- re->next = NULL;
-
- re->re_str = strdup (ci->values[0].value.string);
- if (re->re_str == NULL)
- {
- free (re);
- log_err ("mr_config_add_regex: strdup failed.");
- return (-1);
- }
-
- status = regcomp (&re->re, re->re_str, REG_EXTENDED | REG_NOSUB);
- if (status != 0)
- {
- char errmsg[1024];
- regerror (status, &re->re, errmsg, sizeof (errmsg));
- errmsg[sizeof (errmsg) - 1] = 0;
- log_err ("Compiling regex `%s' for `%s' failed: %s.",
- re->re_str, ci->key, errmsg);
- free (re->re_str);
- free (re);
- return (-1);
- }
-
- if (*re_head == NULL)
- {
- *re_head = re;
- }
- else
- {
- mr_regex_t *ptr;
-
- ptr = *re_head;
- while (ptr->next != NULL)
- ptr = ptr->next;
-
- ptr->next = re;
- }
-
- return (0);
-} /* }}} int mr_config_add_regex */
-
-static int mr_create (const oconfig_item_t *ci, void **user_data) /* {{{ */
-{
- mr_match_t *m;
- int status;
- int i;
-
- m = (mr_match_t *) malloc (sizeof (*m));
- if (m == NULL)
- {
- log_err ("mr_create: malloc failed.");
- return (-ENOMEM);
- }
- memset (m, 0, sizeof (*m));
-
- m->invert = 0;
-
- status = 0;
- for (i = 0; i < ci->children_num; i++)
- {
- oconfig_item_t *child = ci->children + i;
-
- if ((strcasecmp ("Host", child->key) == 0)
- || (strcasecmp ("Hostname", child->key) == 0))
- status = mr_config_add_regex (&m->host, child);
- else if (strcasecmp ("Plugin", child->key) == 0)
- status = mr_config_add_regex (&m->plugin, child);
- else if (strcasecmp ("PluginInstance", child->key) == 0)
- status = mr_config_add_regex (&m->plugin_instance, child);
- else if (strcasecmp ("Type", child->key) == 0)
- status = mr_config_add_regex (&m->type, child);
- else if (strcasecmp ("TypeInstance", child->key) == 0)
- status = mr_config_add_regex (&m->type_instance, child);
- else if (strcasecmp ("Invert", child->key) == 0)
- status = cf_util_get_boolean(child, &m->invert);
- else
- {
- log_err ("The `%s' configuration option is not understood and "
- "will be ignored.", child->key);
- status = 0;
- }
-
- if (status != 0)
- break;
- }
-
- /* Additional sanity-checking */
- while (status == 0)
- {
- if ((m->host == NULL)
- && (m->plugin == NULL)
- && (m->plugin_instance == NULL)
- && (m->type == NULL)
- && (m->type_instance == NULL))
- {
- log_err ("No (valid) regular expressions have been configured. "
- "This match will be ignored.");
- status = -1;
- }
-
- break;
- }
-
- if (status != 0)
- {
- mr_free_match (m);
- return (status);
- }
-
- *user_data = m;
- return (0);
-} /* }}} int mr_create */
-
-static int mr_destroy (void **user_data) /* {{{ */
-{
- if ((user_data != NULL) && (*user_data != NULL))
- mr_free_match (*user_data);
- return (0);
-} /* }}} int mr_destroy */
-
-static int mr_match (const data_set_t __attribute__((unused)) *ds, /* {{{ */
- const value_list_t *vl,
- notification_meta_t __attribute__((unused)) **meta,
- void **user_data)
-{
- mr_match_t *m;
- int match_value = FC_MATCH_MATCHES;
- int nomatch_value = FC_MATCH_NO_MATCH;
-
- if ((user_data == NULL) || (*user_data == NULL))
- return (-1);
-
- m = *user_data;
-
- if (m->invert)
- {
- match_value = FC_MATCH_NO_MATCH;
- nomatch_value = FC_MATCH_MATCHES;
- }
-
- if (mr_match_regexen (m->host, vl->host) == FC_MATCH_NO_MATCH)
- return (nomatch_value);
- if (mr_match_regexen (m->plugin, vl->plugin) == FC_MATCH_NO_MATCH)
- return (nomatch_value);
- if (mr_match_regexen (m->plugin_instance,
- vl->plugin_instance) == FC_MATCH_NO_MATCH)
- return (nomatch_value);
- if (mr_match_regexen (m->type, vl->type) == FC_MATCH_NO_MATCH)
- return (nomatch_value);
- if (mr_match_regexen (m->type_instance,
- vl->type_instance) == FC_MATCH_NO_MATCH)
- return (nomatch_value);
-
- return (match_value);
-} /* }}} int mr_match */
-
-void module_register (void)
-{
- match_proc_t mproc;
-
- memset (&mproc, 0, sizeof (mproc));
- mproc.create = mr_create;
- mproc.destroy = mr_destroy;
- mproc.match = mr_match;
- fc_register_match ("regex", mproc);
-} /* module_register */
-
-/* vim: set sw=4 ts=4 tw=78 noexpandtab fdm=marker : */
-