2 * collectd - src/utils_cmd_putval.c
3 * Copyright (C) 2007-2009 Florian octo Forster
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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21 * DEALINGS IN THE SOFTWARE.
24 * Florian octo Forster <octo at collectd.org>
31 #include "utils_parse_option.h"
33 #define print_to_socket(fh, ...) \
35 if (fprintf (fh, __VA_ARGS__) < 0) { \
37 WARNING ("handle_putval: failed to write to socket #%i: %s", \
38 fileno (fh), sstrerror (errno, errbuf, sizeof (errbuf))); \
45 static int set_option (value_list_t *vl, const char *key, const char *value)
47 if ((vl == NULL) || (key == NULL) || (value == NULL))
50 if (strcasecmp ("interval", key) == 0)
57 tmp = strtod (value, &endptr);
59 if ((errno == 0) && (endptr != NULL)
60 && (endptr != value) && (tmp > 0.0))
61 vl->interval = DOUBLE_TO_CDTIME_T (tmp);
67 } /* int parse_option */
69 int handle_putval (FILE *fh, char *buffer)
75 char *plugin_instance;
81 char *identifier_copy;
84 value_list_t vl = VALUE_LIST_INIT;
87 DEBUG ("utils_cmd_putval: handle_putval (fh = %p, buffer = %s);",
91 status = parse_string (&buffer, &command);
94 print_to_socket (fh, "-1 Cannot parse command.\n");
97 assert (command != NULL);
99 if (strcasecmp ("PUTVAL", command) != 0)
101 print_to_socket (fh, "-1 Unexpected command: `%s'.\n", command);
106 status = parse_string (&buffer, &identifier);
109 print_to_socket (fh, "-1 Cannot parse identifier.\n");
112 assert (identifier != NULL);
114 /* parse_identifier() modifies its first argument,
115 * returning pointers into it */
116 identifier_copy = sstrdup (identifier);
118 status = parse_identifier (identifier_copy, &hostname,
119 &plugin, &plugin_instance,
120 &type, &type_instance);
123 DEBUG ("handle_putval: Cannot parse identifier `%s'.",
125 print_to_socket (fh, "-1 Cannot parse identifier `%s'.\n",
127 sfree (identifier_copy);
131 if ((strlen (hostname) >= sizeof (vl.host))
132 || (strlen (plugin) >= sizeof (vl.plugin))
133 || ((plugin_instance != NULL)
134 && (strlen (plugin_instance) >= sizeof (vl.plugin_instance)))
135 || ((type_instance != NULL)
136 && (strlen (type_instance) >= sizeof (vl.type_instance))))
138 print_to_socket (fh, "-1 Identifier too long.\n");
139 sfree (identifier_copy);
143 sstrncpy (vl.host, hostname, sizeof (vl.host));
144 sstrncpy (vl.plugin, plugin, sizeof (vl.plugin));
145 sstrncpy (vl.type, type, sizeof (vl.type));
146 if (plugin_instance != NULL)
147 sstrncpy (vl.plugin_instance, plugin_instance, sizeof (vl.plugin_instance));
148 if (type_instance != NULL)
149 sstrncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
151 ds = plugin_get_ds (type);
153 print_to_socket (fh, "-1 Type `%s' isn't defined.\n", type);
154 sfree (identifier_copy);
158 /* Free identifier_copy */
160 plugin = NULL; plugin_instance = NULL;
161 type = NULL; type_instance = NULL;
162 sfree (identifier_copy);
164 vl.values_len = ds->ds_num;
165 vl.values = (value_t *) malloc (vl.values_len * sizeof (value_t));
166 if (vl.values == NULL)
168 print_to_socket (fh, "-1 malloc failed.\n");
172 /* All the remaining fields are part of the optionlist. */
173 values_submitted = 0;
179 status = parse_option (&buffer, &string, &value);
182 /* parse_option failed, buffer has been modified.
183 * => we need to abort */
184 print_to_socket (fh, "-1 Misformatted option.\n");
188 else if (status == 0)
190 assert (string != NULL);
191 assert (value != NULL);
192 set_option (&vl, string, value);
195 /* else: parse_option but buffer has not been modified. This is
196 * the default if no `=' is found.. */
198 status = parse_string (&buffer, &string);
201 print_to_socket (fh, "-1 Misformatted value.\n");
205 assert (string != NULL);
207 status = parse_values (string, &vl, ds);
210 print_to_socket (fh, "-1 Parsing the values string failed.\n");
215 plugin_dispatch_values (&vl);
217 } /* while (*buffer != 0) */
218 /* Done parsing the options. */
220 print_to_socket (fh, "0 Success: %i %s been dispatched.\n",
222 (values_submitted == 1) ? "value has" : "values have");
226 } /* int handle_putval */
228 int create_putval (char *ret, size_t ret_len, /* {{{ */
229 const data_set_t *ds, const value_list_t *vl)
231 char buffer_ident[6 * DATA_MAX_NAME_LEN];
232 char buffer_values[1024];
235 status = FORMAT_VL (buffer_ident, sizeof (buffer_ident), vl);
238 escape_string (buffer_ident, sizeof (buffer_ident));
240 status = format_values (buffer_values, sizeof (buffer_values),
241 ds, vl, /* store rates = */ 0);
244 escape_string (buffer_values, sizeof (buffer_values));
246 ssnprintf (ret, ret_len,
247 "PUTVAL %s interval=%.3f %s",
250 ? CDTIME_T_TO_DOUBLE (vl->interval)
251 : CDTIME_T_TO_DOUBLE (plugin_get_interval ()),
255 } /* }}} int create_putval */