1 /**
2 * collectd - src/utils_cms_putval.c
3 * Copyright (C) 2007 Florian octo Forster
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; only version 2 of the License is applicable.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
17 *
18 * Author:
19 * Florian octo Forster <octo at verplant.org>
20 **/
22 #include "collectd.h"
23 #include "common.h"
24 #include "plugin.h"
26 static int parse_value (const data_set_t *ds, value_list_t *vl,
27 const char *type,
28 FILE *fh, char *buffer)
29 {
30 char *dummy;
31 char *ptr;
32 char *saveptr;
33 int i;
35 char *time_str = buffer;
36 char *value_str = strchr (time_str, ':');
37 if (value_str == NULL)
38 {
39 fprintf (fh, "-1 No time found.\n");
40 return (-1);
41 }
42 *value_str = '\0'; value_str++;
44 vl->time = (time_t) atoi (time_str);
45 if (vl->time == 0)
46 vl->time = time (NULL);
48 i = 0;
49 dummy = value_str;
50 saveptr = NULL;
51 while ((ptr = strtok_r (dummy, ":", &saveptr)) != NULL)
52 {
53 dummy = NULL;
55 if (i >= vl->values_len)
56 {
57 i = vl->values_len + 1;
58 break;
59 }
61 if (strcmp (ptr, "U") == 0)
62 vl->values[i].gauge = NAN;
63 else if (ds->ds[i].type == DS_TYPE_COUNTER)
64 vl->values[i].counter = atoll (ptr);
65 else if (ds->ds[i].type == DS_TYPE_GAUGE)
66 vl->values[i].gauge = atof (ptr);
68 i++;
69 } /* while (strtok_r) */
71 if (i != vl->values_len)
72 {
73 char identifier[128];
74 FORMAT_VL (identifier, sizeof (identifier), vl, ds);
75 ERROR ("cmd putval: parse_value: "
76 "Number of values incorrect: "
77 "Got %i, expected %i. Identifier is `%s'.",
78 i, vl->values_len, identifier);
79 fprintf (fh, "-1 Number of values incorrect: "
80 "Got %i, expected %i.\n",
81 i, vl->values_len);
82 return (-1);
83 }
85 plugin_dispatch_values (type, vl);
86 return (0);
87 } /* int parse_value */
89 static int parse_option (value_list_t *vl, char *buffer)
90 {
91 char *option = buffer;
92 char *value;
94 if ((vl == NULL) || (option == NULL))
95 return (-1);
97 value = strchr (option, '=');
98 if (value == NULL)
99 return (-1);
100 *value = '\0'; value++;
102 if (strcasecmp ("interval", option) == 0)
103 {
104 vl->interval = atoi (value);
105 if (vl->interval <= 0)
106 vl->interval = interval_g;
107 }
108 else
109 return (1);
111 return (0);
112 } /* int parse_option */
114 int handle_putval (FILE *fh, char **fields, int fields_num)
115 {
116 char *hostname;
117 char *plugin;
118 char *plugin_instance;
119 char *type;
120 char *type_instance;
121 int status;
122 int i;
124 char *identifier_copy;
126 const data_set_t *ds;
127 value_list_t vl = VALUE_LIST_INIT;
129 if (fields_num < 3)
130 {
131 DEBUG ("cmd putval: Wrong number of fields: %i",
132 fields_num);
133 fprintf (fh, "-1 Wrong number of fields: Got %i, "
134 "expected at least 3.\n",
135 fields_num);
136 fflush (fh);
137 return (-1);
138 }
140 /* parse_identifier() modifies its first argument,
141 * returning pointers into it */
142 identifier_copy = sstrdup (fields[1]);
144 status = parse_identifier (identifier_copy, &hostname,
145 &plugin, &plugin_instance,
146 &type, &type_instance);
147 if (status != 0)
148 {
149 DEBUG ("cmd putval: Cannot parse `%s'", fields[1]);
150 fprintf (fh, "-1 Cannot parse identifier.\n");
151 fflush (fh);
152 sfree (identifier_copy);
153 return (-1);
154 }
156 if ((strlen (hostname) >= sizeof (vl.host))
157 || (strlen (plugin) >= sizeof (vl.plugin))
158 || ((plugin_instance != NULL)
159 && (strlen (plugin_instance) >= sizeof (vl.plugin_instance)))
160 || ((type_instance != NULL)
161 && (strlen (type_instance) >= sizeof (vl.type_instance))))
162 {
163 fprintf (fh, "-1 Identifier too long.\n");
164 fflush (fh);
165 sfree (identifier_copy);
166 return (-1);
167 }
169 sstrncpy (vl.host, hostname, sizeof (vl.host));
170 sstrncpy (vl.plugin, plugin, sizeof (vl.plugin));
171 if (plugin_instance != NULL)
172 sstrncpy (vl.plugin_instance, plugin_instance, sizeof (vl.plugin_instance));
173 if (type_instance != NULL)
174 sstrncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
176 ds = plugin_get_ds (type);
177 if (ds == NULL) {
178 sfree (identifier_copy);
179 return (-1);
180 }
182 vl.values_len = ds->ds_num;
183 vl.values = (value_t *) malloc (vl.values_len * sizeof (value_t));
184 if (vl.values == NULL)
185 {
186 fprintf (fh, "-1 malloc failed.\n");
187 fflush (fh);
188 sfree (identifier_copy);
189 return (-1);
190 }
192 /* All the remaining fields are part of the optionlist. */
193 for (i = 2; i < fields_num; i++)
194 {
195 if (strchr (fields[i], ':') != NULL)
196 {
197 /* It's parse_value's job to write an error to `fh'.
198 * This is not the case with `parse_option below.
199 * Neither will write an success message. */
200 if (parse_value (ds, &vl, type, fh, fields[i]) != 0)
201 break;
202 }
203 else if (strchr (fields[i], '=') != NULL)
204 {
205 if (parse_option (&vl, fields[i]) != 0)
206 {
207 fprintf (fh, "-1 Error parsing option `%s'\n",
208 fields[i]);
209 break;
210 }
211 }
212 else
213 {
214 WARNING ("cmd putval: handle_putval: "
215 "Cannot parse field #%i `%s'; "
216 "Ignoring it.\n",
217 i, fields[i]);
218 }
219 }
220 /* Done parsing the options. */
222 if (i == fields_num)
223 fprintf (fh, "0 Success\n");
224 fflush (fh);
226 sfree (vl.values);
227 sfree (identifier_copy);
229 return (0);
230 } /* int handle_putval */