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"),
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10 * Software is furnished to do so, subject to the following conditions:
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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,
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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, ...) \
34 if (fprintf (fh, __VA_ARGS__) < 0) { \
36 WARNING ("handle_putval: failed to write to socket #%i: %s", \
37 fileno (fh), sstrerror (errno, errbuf, sizeof (errbuf))); \
41 static int dispatch_values (const data_set_t *ds, value_list_t *vl,
42 FILE *fh, char *buffer)
46 status = parse_values (buffer, vl, ds);
49 print_to_socket (fh, "-1 Parsing the values string failed.\n");
53 plugin_dispatch_values (vl);
55 } /* int dispatch_values */
57 static int set_option (value_list_t *vl, const char *key, const char *value)
59 if ((vl == NULL) || (key == NULL) || (value == NULL))
62 if (strcasecmp ("interval", key) == 0)
69 tmp = strtod (value, &endptr);
71 if ((errno == 0) && (endptr != NULL)
72 && (endptr != value) && (tmp > 0.0))
73 vl->interval = DOUBLE_TO_CDTIME_T (tmp);
79 } /* int parse_option */
81 int handle_putval (FILE *fh, char *buffer)
87 char *plugin_instance;
93 char *identifier_copy;
96 value_list_t vl = VALUE_LIST_INIT;
98 DEBUG ("utils_cmd_putval: handle_putval (fh = %p, buffer = %s);",
102 status = parse_string (&buffer, &command);
105 print_to_socket (fh, "-1 Cannot parse command.\n");
108 assert (command != NULL);
110 if (strcasecmp ("PUTVAL", command) != 0)
112 print_to_socket (fh, "-1 Unexpected command: `%s'.\n", command);
117 status = parse_string (&buffer, &identifier);
120 print_to_socket (fh, "-1 Cannot parse identifier.\n");
123 assert (identifier != NULL);
125 /* parse_identifier() modifies its first argument,
126 * returning pointers into it */
127 identifier_copy = sstrdup (identifier);
129 status = parse_identifier (identifier_copy, &hostname,
130 &plugin, &plugin_instance,
131 &type, &type_instance);
134 DEBUG ("handle_putval: Cannot parse identifier `%s'.",
136 print_to_socket (fh, "-1 Cannot parse identifier `%s'.\n",
138 sfree (identifier_copy);
142 if ((strlen (hostname) >= sizeof (vl.host))
143 || (strlen (plugin) >= sizeof (vl.plugin))
144 || ((plugin_instance != NULL)
145 && (strlen (plugin_instance) >= sizeof (vl.plugin_instance)))
146 || ((type_instance != NULL)
147 && (strlen (type_instance) >= sizeof (vl.type_instance))))
149 print_to_socket (fh, "-1 Identifier too long.\n");
150 sfree (identifier_copy);
154 sstrncpy (vl.host, hostname, sizeof (vl.host));
155 sstrncpy (vl.plugin, plugin, sizeof (vl.plugin));
156 sstrncpy (vl.type, type, sizeof (vl.type));
157 if (plugin_instance != NULL)
158 sstrncpy (vl.plugin_instance, plugin_instance, sizeof (vl.plugin_instance));
159 if (type_instance != NULL)
160 sstrncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
162 ds = plugin_get_ds (type);
164 print_to_socket (fh, "-1 Type `%s' isn't defined.\n", type);
165 sfree (identifier_copy);
169 /* Free identifier_copy */
171 plugin = NULL; plugin_instance = NULL;
172 type = NULL; type_instance = NULL;
173 sfree (identifier_copy);
175 vl.values_len = ds->ds_num;
176 vl.values = (value_t *) malloc (vl.values_len * sizeof (value_t));
177 if (vl.values == NULL)
179 print_to_socket (fh, "-1 malloc failed.\n");
183 /* All the remaining fields are part of the optionlist. */
184 values_submitted = 0;
190 status = parse_option (&buffer, &string, &value);
193 /* parse_option failed, buffer has been modified.
194 * => we need to abort */
195 print_to_socket (fh, "-1 Misformatted option.\n");
198 else if (status == 0)
200 assert (string != NULL);
201 assert (value != NULL);
202 set_option (&vl, string, value);
205 /* else: parse_option but buffer has not been modified. This is
206 * the default if no `=' is found.. */
208 status = parse_string (&buffer, &string);
211 print_to_socket (fh, "-1 Misformatted value.\n");
214 assert (string != NULL);
216 status = dispatch_values (ds, &vl, fh, string);
219 /* An error has already been printed. */
223 } /* while (*buffer != 0) */
224 /* Done parsing the options. */
226 print_to_socket (fh, "0 Success: %i %s been dispatched.\n",
228 (values_submitted == 1) ? "value has" : "values have");
233 } /* int handle_putval */
235 int create_putval (char *ret, size_t ret_len, /* {{{ */
236 const data_set_t *ds, const value_list_t *vl)
238 char buffer_ident[6 * DATA_MAX_NAME_LEN];
239 char buffer_values[1024];
242 status = FORMAT_VL (buffer_ident, sizeof (buffer_ident), vl);
245 escape_string (buffer_ident, sizeof (buffer_ident));
247 status = format_values (buffer_values, sizeof (buffer_values),
248 ds, vl, /* store rates = */ 0);
251 escape_string (buffer_values, sizeof (buffer_values));
253 ssnprintf (ret, ret_len,
254 "PUTVAL %s interval=%.3f %s",
257 ? CDTIME_T_TO_DOUBLE (vl->interval)
258 : CDTIME_T_TO_DOUBLE (plugin_get_interval ()),
262 } /* }}} int create_putval */