/**
* collectd - src/common.c
- * Copyright (C) 2005-2010 Florian octo Forster
+ * Copyright (C) 2005-2014 Florian octo Forster
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; only version 2 of the License is applicable.
+ * 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:
*
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
*
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * 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>
if (buf[i] != '\\')
continue;
- if ((i >= buf_len) || (buf[i + 1] == '\0')) {
+ if (((i + 1) >= buf_len) || (buf[i + 1] == 0)) {
ERROR ("string unescape: backslash found at end of string.");
+ /* Ensure null-byte at the end of the buffer. */
+ buf[i] = 0;
return (-1);
}
break;
}
+ /* Move everything after the position one position to the left.
+ * Add a null-byte as last character in the buffer. */
memmove (buf + i + 1, buf + i + 2, buf_len - i - 2);
+ buf[buf_len - 1] = 0;
}
return (0);
} /* int strunescape */
return (buffer_len);
} /* size_t strstripnewline */
-int escape_slashes (char *buf, int buf_len)
+int escape_slashes (char *buffer, size_t buffer_size)
{
int i;
+ size_t buffer_len;
- if (strcmp (buf, "/") == 0)
- {
- if (buf_len < 5)
- return (-1);
+ buffer_len = strlen (buffer);
- strncpy (buf, "root", buf_len);
+ if (buffer_len <= 1)
+ {
+ if (strcmp ("/", buffer) == 0)
+ {
+ if (buffer_size < 5)
+ return (-1);
+ sstrncpy (buffer, "root", buffer_size);
+ }
return (0);
}
- if (buf_len <= 1)
- return (0);
-
/* Move one to the left */
- if (buf[0] == '/')
- memmove (buf, buf + 1, buf_len - 1);
+ if (buffer[0] == '/')
+ {
+ memmove (buffer, buffer + 1, buffer_len);
+ buffer_len--;
+ }
- for (i = 0; i < buf_len - 1; i++)
+ for (i = 0; i < buffer_len - 1; i++)
{
- if (buf[i] == '\0')
- break;
- else if (buf[i] == '/')
- buf[i] = '_';
+ if (buffer[i] == '/')
+ buffer[i] = '_';
}
- buf[i] = '\0';
return (0);
} /* int escape_slashes */
char ident[128];
*ksp_ptr = NULL;
-
+
if (kc == NULL)
return (-1);
while ((ent = readdir (dh)) != NULL)
{
int status;
-
+
if (include_hidden)
{
if ((strcmp (".", ent->d_name) == 0)
return (0);
} /* }}} value_t rate_to_value */
+int value_to_rate (value_t *ret_rate, derive_t value, /* {{{ */
+ value_to_rate_state_t *state,
+ int ds_type, cdtime_t t)
+{
+ double interval;
+
+ /* Another invalid state: The time is not increasing. */
+ if (t <= state->last_time)
+ {
+ memset (state, 0, sizeof (*state));
+ return (EINVAL);
+ }
+
+ interval = CDTIME_T_TO_DOUBLE(t - state->last_time);
+
+ /* Previous value is invalid. */
+ if (state->last_time == 0) /* {{{ */
+ {
+ if (ds_type == DS_TYPE_DERIVE)
+ {
+ state->last_value.derive = value;
+ }
+ else if (ds_type == DS_TYPE_COUNTER)
+ {
+ state->last_value.counter = (counter_t) value;
+ }
+ else if (ds_type == DS_TYPE_ABSOLUTE)
+ {
+ state->last_value.absolute = (absolute_t) value;
+ }
+ else
+ {
+ assert (23 == 42);
+ }
+
+ state->last_time = t;
+ return (EAGAIN);
+ } /* }}} */
+
+ if (ds_type == DS_TYPE_DERIVE)
+ {
+ ret_rate->gauge = (value - state->last_value.derive) / interval;
+ state->last_value.derive = value;
+ }
+ else if (ds_type == DS_TYPE_COUNTER)
+ {
+ ret_rate->gauge = (((counter_t)value) - state->last_value.counter) / interval;
+ state->last_value.counter = (counter_t) value;
+ }
+ else if (ds_type == DS_TYPE_ABSOLUTE)
+ {
+ ret_rate->gauge = (((absolute_t)value) - state->last_value.absolute) / interval;
+ state->last_value.absolute = (absolute_t) value;
+ }
+ else
+ {
+ assert (23 == 42);
+ }
+
+ state->last_time = t;
+ return (0);
+} /* }}} value_t rate_to_value */
+
int service_name_to_port_number (const char *service_name)
{
struct addrinfo *ai_list;
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