/**
* collectd - src/utils_match.c
- * Copyright (C) 2008 Florian octo Forster
+ * Copyright (C) 2008 Florian octo Forster
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
+ * 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:
*
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
*
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * 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:
- * Florian octo Forster <octo at verplant.org>
+ * Florian octo Forster <octo at collectd.org>
**/
#include "collectd.h"
#include <regex.h>
#define UTILS_MATCH_FLAGS_FREE_USER_DATA 0x01
+#define UTILS_MATCH_FLAGS_EXCLUDE_REGEX 0x02
struct cu_match_s
{
regex_t regex;
+ regex_t excluderegex;
int flags;
int (*callback) (const char *str, char * const *matches, size_t matches_num,
if ((begin < 0) || (end < 0) || (begin >= end))
return (NULL);
- if (end > (strlen (str) + 1))
+ if ((size_t) end > (strlen (str) + 1))
{
ERROR ("utils_match: match_substr: `end' points after end of string.");
return (NULL);
return (ret);
} /* char *match_substr */
-static int default_callback (const char *str,
+static int default_callback (const char __attribute__((unused)) *str,
char * const *matches, size_t matches_num, void *user_data)
{
cu_match_value_t *data = (cu_match_value_t *) user_data;
if (matches_num < 2)
return (-1);
- value = strtod (matches[1], &endptr);
+ value = (gauge_t) strtod (matches[1], &endptr);
if (matches[1] == endptr)
return (-1);
if (matches_num < 2)
return (-1);
- value = strtoll (matches[1], &endptr, 0);
+ value = (counter_t) strtoull (matches[1], &endptr, 0);
if (matches[1] == endptr)
return (-1);
data->values_num++;
}
+ else if (data->ds_type & UTILS_MATCH_DS_TYPE_DERIVE)
+ {
+ derive_t value;
+ char *endptr = NULL;
+
+ if (data->ds_type & UTILS_MATCH_CF_DERIVE_INC)
+ {
+ data->value.counter++;
+ data->values_num++;
+ return (0);
+ }
+
+ if (matches_num < 2)
+ return (-1);
+
+ value = (derive_t) strtoll (matches[1], &endptr, 0);
+ if (matches[1] == endptr)
+ return (-1);
+
+ if (data->ds_type & UTILS_MATCH_CF_DERIVE_SET)
+ data->value.derive = value;
+ else if (data->ds_type & UTILS_MATCH_CF_DERIVE_ADD)
+ data->value.derive += value;
+ else
+ {
+ ERROR ("utils_match: default_callback: obj->ds_type is invalid!");
+ return (-1);
+ }
+
+ data->values_num++;
+ }
+ else if (data->ds_type & UTILS_MATCH_DS_TYPE_ABSOLUTE)
+ {
+ absolute_t value;
+ char *endptr = NULL;
+
+ if (matches_num < 2)
+ return (-1);
+
+ value = (absolute_t) strtoull (matches[1], &endptr, 0);
+ if (matches[1] == endptr)
+ return (-1);
+
+ if (data->ds_type & UTILS_MATCH_CF_ABSOLUTE_SET)
+ data->value.absolute = value;
+ else
+ {
+ ERROR ("utils_match: default_callback: obj->ds_type is invalid!");
+ return (-1);
+ }
+
+ data->values_num++;
+ }
else
{
ERROR ("utils_match: default_callback: obj->ds_type is invalid!");
/*
* Public functions
*/
-cu_match_t *match_create_callback (const char *regex,
+cu_match_t *match_create_callback (const char *regex, const char *excluderegex,
int (*callback) (const char *str,
char * const *matches, size_t matches_num, void *user_data),
void *user_data)
cu_match_t *obj;
int status;
- DEBUG ("utils_match: match_create_callback: regex = %s", regex);
+ DEBUG ("utils_match: match_create_callback: regex = %s, excluderegex = %s",
+ regex, excluderegex);
obj = (cu_match_t *) malloc (sizeof (cu_match_t));
if (obj == NULL)
return (NULL);
memset (obj, '\0', sizeof (cu_match_t));
- status = regcomp (&obj->regex, regex, REG_EXTENDED);
+ status = regcomp (&obj->regex, regex, REG_EXTENDED | REG_NEWLINE);
if (status != 0)
{
ERROR ("Compiling the regular expression \"%s\" failed.", regex);
return (NULL);
}
+ if (excluderegex && strcmp(excluderegex, "") != 0) {
+ status = regcomp (&obj->excluderegex, excluderegex, REG_EXTENDED);
+ if (status != 0)
+ {
+ ERROR ("Compiling the excluding regular expression \"%s\" failed.",
+ excluderegex);
+ sfree (obj);
+ return (NULL);
+ }
+ obj->flags |= UTILS_MATCH_FLAGS_EXCLUDE_REGEX;
+ }
+
obj->callback = callback;
obj->user_data = user_data;
return (obj);
} /* cu_match_t *match_create_callback */
-cu_match_t *match_create_simple (const char *regex, int match_ds_type)
+cu_match_t *match_create_simple (const char *regex,
+ const char *excluderegex, int match_ds_type)
{
cu_match_value_t *user_data;
cu_match_t *obj;
memset (user_data, '\0', sizeof (cu_match_value_t));
user_data->ds_type = match_ds_type;
- obj = match_create_callback (regex, default_callback, user_data);
+ obj = match_create_callback (regex, excluderegex,
+ default_callback, user_data);
if (obj == NULL)
{
sfree (user_data);
regmatch_t re_match[32];
char *matches[32];
size_t matches_num;
- int i;
+ size_t i;
if ((obj == NULL) || (str == NULL))
return (-1);
+ if (obj->flags & UTILS_MATCH_FLAGS_EXCLUDE_REGEX) {
+ status = regexec (&obj->excluderegex, str,
+ STATIC_ARRAY_SIZE (re_match), re_match,
+ /* eflags = */ 0);
+ /* Regex did match, so exclude this line */
+ if (status == 0) {
+ DEBUG("ExludeRegex matched, don't count that line\n");
+ return (0);
+ }
+ }
+
status = regexec (&obj->regex, str,
STATIC_ARRAY_SIZE (re_match), re_match,
/* eflags = */ 0);
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