+++ /dev/null
-/**
- * collectd - src/utils_cmd_putval.c
- * Copyright (C) 2007-2009 Florian octo 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:
- * Florian octo Forster <octo at collectd.org>
- **/
-
-#include "collectd.h"
-#include "common.h"
-#include "plugin.h"
-
-#include "utils_parse_option.h"
-#include "utils_cmd_putval.h"
-
-#define print_to_socket(fh, ...) \
- do { \
- if (fprintf (fh, __VA_ARGS__) < 0) { \
- char errbuf[1024]; \
- WARNING ("handle_putval: failed to write to socket #%i: %s", \
- fileno (fh), sstrerror (errno, errbuf, sizeof (errbuf))); \
- sfree (vl.values); \
- return -1; \
- } \
- fflush(fh); \
- } while (0)
-
-static int set_option (value_list_t *vl, const char *key, const char *value)
-{
- if ((vl == NULL) || (key == NULL) || (value == NULL))
- return (-1);
-
- if (strcasecmp ("interval", key) == 0)
- {
- double tmp;
- char *endptr;
-
- endptr = NULL;
- errno = 0;
- tmp = strtod (value, &endptr);
-
- if ((errno == 0) && (endptr != NULL)
- && (endptr != value) && (tmp > 0.0))
- vl->interval = DOUBLE_TO_CDTIME_T (tmp);
- }
- else
- return (1);
-
- return (0);
-} /* int parse_option */
-
-int handle_putval (FILE *fh, char *buffer)
-{
- char *command;
- char *identifier;
- char *hostname;
- char *plugin;
- char *plugin_instance;
- char *type;
- char *type_instance;
- int status;
- int values_submitted;
-
- char *identifier_copy;
-
- const data_set_t *ds;
- value_list_t vl = VALUE_LIST_INIT;
- vl.values = NULL;
-
- DEBUG ("utils_cmd_putval: handle_putval (fh = %p, buffer = %s);",
- (void *) fh, buffer);
-
- command = NULL;
- status = parse_string (&buffer, &command);
- if (status != 0)
- {
- print_to_socket (fh, "-1 Cannot parse command.\n");
- return (-1);
- }
- assert (command != NULL);
-
- if (strcasecmp ("PUTVAL", command) != 0)
- {
- print_to_socket (fh, "-1 Unexpected command: `%s'.\n", command);
- return (-1);
- }
-
- identifier = NULL;
- status = parse_string (&buffer, &identifier);
- if (status != 0)
- {
- print_to_socket (fh, "-1 Cannot parse identifier.\n");
- return (-1);
- }
- assert (identifier != NULL);
-
- /* parse_identifier() modifies its first argument,
- * returning pointers into it */
- identifier_copy = sstrdup (identifier);
-
- status = parse_identifier (identifier_copy, &hostname,
- &plugin, &plugin_instance,
- &type, &type_instance);
- if (status != 0)
- {
- DEBUG ("handle_putval: Cannot parse identifier `%s'.",
- identifier);
- print_to_socket (fh, "-1 Cannot parse identifier `%s'.\n",
- identifier);
- sfree (identifier_copy);
- return (-1);
- }
-
- if ((strlen (hostname) >= sizeof (vl.host))
- || (strlen (plugin) >= sizeof (vl.plugin))
- || ((plugin_instance != NULL)
- && (strlen (plugin_instance) >= sizeof (vl.plugin_instance)))
- || ((type_instance != NULL)
- && (strlen (type_instance) >= sizeof (vl.type_instance))))
- {
- print_to_socket (fh, "-1 Identifier too long.\n");
- sfree (identifier_copy);
- return (-1);
- }
-
- sstrncpy (vl.host, hostname, sizeof (vl.host));
- sstrncpy (vl.plugin, plugin, sizeof (vl.plugin));
- sstrncpy (vl.type, type, sizeof (vl.type));
- if (plugin_instance != NULL)
- sstrncpy (vl.plugin_instance, plugin_instance, sizeof (vl.plugin_instance));
- if (type_instance != NULL)
- sstrncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
-
- ds = plugin_get_ds (type);
- if (ds == NULL) {
- print_to_socket (fh, "-1 Type `%s' isn't defined.\n", type);
- sfree (identifier_copy);
- return (-1);
- }
-
- /* Free identifier_copy */
- hostname = NULL;
- plugin = NULL; plugin_instance = NULL;
- type = NULL; type_instance = NULL;
- sfree (identifier_copy);
-
- vl.values_len = ds->ds_num;
- vl.values = malloc (vl.values_len * sizeof (*vl.values));
- if (vl.values == NULL)
- {
- print_to_socket (fh, "-1 malloc failed.\n");
- return (-1);
- }
-
- /* All the remaining fields are part of the optionlist. */
- values_submitted = 0;
- while (*buffer != 0)
- {
- char *string = NULL;
- char *value = NULL;
-
- status = parse_option (&buffer, &string, &value);
- if (status < 0)
- {
- /* parse_option failed, buffer has been modified.
- * => we need to abort */
- print_to_socket (fh, "-1 Misformatted option.\n");
- sfree (vl.values);
- return (-1);
- }
- else if (status == 0)
- {
- assert (string != NULL);
- assert (value != NULL);
- set_option (&vl, string, value);
- continue;
- }
- /* else: parse_option but buffer has not been modified. This is
- * the default if no `=' is found.. */
-
- status = parse_string (&buffer, &string);
- if (status != 0)
- {
- print_to_socket (fh, "-1 Misformatted value.\n");
- sfree (vl.values);
- return (-1);
- }
- assert (string != NULL);
-
- status = parse_values (string, &vl, ds);
- if (status != 0)
- {
- print_to_socket (fh, "-1 Parsing the values string failed.\n");
- sfree (vl.values);
- return (-1);
- }
-
- plugin_dispatch_values (&vl);
- values_submitted++;
- } /* while (*buffer != 0) */
- /* Done parsing the options. */
-
- if (fh!=stdout)
- print_to_socket (fh, "0 Success: %i %s been dispatched.\n",
- values_submitted,
- (values_submitted == 1) ? "value has" : "values have");
-
- sfree (vl.values);
- return (0);
-} /* int handle_putval */
-
-int create_putval (char *ret, size_t ret_len, /* {{{ */
- const data_set_t *ds, const value_list_t *vl)
-{
- char buffer_ident[6 * DATA_MAX_NAME_LEN];
- char buffer_values[1024];
- int status;
-
- status = FORMAT_VL (buffer_ident, sizeof (buffer_ident), vl);
- if (status != 0)
- return (status);
- escape_string (buffer_ident, sizeof (buffer_ident));
-
- status = format_values (buffer_values, sizeof (buffer_values),
- ds, vl, /* store rates = */ 0);
- if (status != 0)
- return (status);
- escape_string (buffer_values, sizeof (buffer_values));
-
- ssnprintf (ret, ret_len,
- "PUTVAL %s interval=%.3f %s",
- buffer_ident,
- (vl->interval > 0)
- ? CDTIME_T_TO_DOUBLE (vl->interval)
- : CDTIME_T_TO_DOUBLE (plugin_get_interval ()),
- buffer_values);
-
- return (0);
-} /* }}} int create_putval */
projects / collectd.git / blobdiff