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
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
24 * Florian octo Forster <octo at collectd.org>
32 #include "utils_parse_option.h"
33 #include "utils_cmd_putval.h"
35 #define print_to_socket(fh, ...) \
37 if (fprintf (fh, __VA_ARGS__) < 0) { \
39 WARNING ("handle_putval: failed to write to socket #%i: %s", \
40 fileno (fh), sstrerror (errno, errbuf, sizeof (errbuf))); \
47 static int set_option (value_list_t *vl, const char *key, const char *value)
49 if ((vl == NULL) || (key == NULL) || (value == NULL))
52 if (strcasecmp ("interval", key) == 0)
59 tmp = strtod (value, &endptr);
61 if ((errno == 0) && (endptr != NULL)
62 && (endptr != value) && (tmp > 0.0))
63 vl->interval = DOUBLE_TO_CDTIME_T (tmp);
69 } /* int parse_option */
71 int handle_putval (FILE *fh, char *buffer)
77 char *plugin_instance;
83 char *identifier_copy;
86 value_list_t vl = VALUE_LIST_INIT;
89 DEBUG ("utils_cmd_putval: handle_putval (fh = %p, buffer = %s);",
93 status = parse_string (&buffer, &command);
96 print_to_socket (fh, "-1 Cannot parse command.\n");
99 assert (command != NULL);
101 if (strcasecmp ("PUTVAL", command) != 0)
103 print_to_socket (fh, "-1 Unexpected command: `%s'.\n", command);
108 status = parse_string (&buffer, &identifier);
111 print_to_socket (fh, "-1 Cannot parse identifier.\n");
114 assert (identifier != NULL);
116 /* parse_identifier() modifies its first argument,
117 * returning pointers into it */
118 identifier_copy = sstrdup (identifier);
120 status = parse_identifier (identifier_copy, &hostname,
121 &plugin, &plugin_instance,
122 &type, &type_instance);
125 DEBUG ("handle_putval: Cannot parse identifier `%s'.",
127 print_to_socket (fh, "-1 Cannot parse identifier `%s'.\n",
129 sfree (identifier_copy);
133 if ((strlen (hostname) >= sizeof (vl.host))
134 || (strlen (plugin) >= sizeof (vl.plugin))
135 || ((plugin_instance != NULL)
136 && (strlen (plugin_instance) >= sizeof (vl.plugin_instance)))
137 || ((type_instance != NULL)
138 && (strlen (type_instance) >= sizeof (vl.type_instance))))
140 print_to_socket (fh, "-1 Identifier too long.\n");
141 sfree (identifier_copy);
145 sstrncpy (vl.host, hostname, sizeof (vl.host));
146 sstrncpy (vl.plugin, plugin, sizeof (vl.plugin));
147 sstrncpy (vl.type, type, sizeof (vl.type));
148 if (plugin_instance != NULL)
149 sstrncpy (vl.plugin_instance, plugin_instance, sizeof (vl.plugin_instance));
150 if (type_instance != NULL)
151 sstrncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
153 ds = plugin_get_ds (type);
155 print_to_socket (fh, "-1 Type `%s' isn't defined.\n", type);
156 sfree (identifier_copy);
160 /* Free identifier_copy */
162 plugin = NULL; plugin_instance = NULL;
163 type = NULL; type_instance = NULL;
164 sfree (identifier_copy);
166 vl.values_len = ds->ds_num;
167 vl.values = malloc (vl.values_len * sizeof (*vl.values));
168 if (vl.values == NULL)
170 print_to_socket (fh, "-1 malloc failed.\n");
174 /* All the remaining fields are part of the optionlist. */
175 values_submitted = 0;
181 status = parse_option (&buffer, &string, &value);
184 /* parse_option failed, buffer has been modified.
185 * => we need to abort */
186 print_to_socket (fh, "-1 Misformatted option.\n");
190 else if (status == 0)
192 assert (string != NULL);
193 assert (value != NULL);
194 set_option (&vl, string, value);
197 /* else: parse_option but buffer has not been modified. This is
198 * the default if no `=' is found.. */
200 status = parse_string (&buffer, &string);
203 print_to_socket (fh, "-1 Misformatted value.\n");
207 assert (string != NULL);
209 status = parse_values (string, &vl, ds);
212 print_to_socket (fh, "-1 Parsing the values string failed.\n");
217 plugin_dispatch_values (&vl);
219 } /* while (*buffer != 0) */
220 /* Done parsing the options. */
223 print_to_socket (fh, "0 Success: %i %s been dispatched.\n",
225 (values_submitted == 1) ? "value has" : "values have");
229 } /* int handle_putval */
231 int create_putval (char *ret, size_t ret_len, /* {{{ */
232 const data_set_t *ds, const value_list_t *vl)
234 char buffer_ident[6 * DATA_MAX_NAME_LEN];
235 char buffer_values[1024];
238 status = FORMAT_VL (buffer_ident, sizeof (buffer_ident), vl);
241 escape_string (buffer_ident, sizeof (buffer_ident));
243 status = format_values (buffer_values, sizeof (buffer_values),
244 ds, vl, /* store rates = */ 0);
247 escape_string (buffer_values, sizeof (buffer_values));
249 ssnprintf (ret, ret_len,
250 "PUTVAL %s interval=%.3f %s",
253 ? CDTIME_T_TO_DOUBLE (vl->interval)
254 : CDTIME_T_TO_DOUBLE (plugin_get_interval ()),
258 } /* }}} int create_putval */