/**
* collectd - src/common.c
- * Copyright (C) 2005 Florian octo Forster
+ * Copyright (C) 2005-2007 Florian octo Forster
*
- * This program is free software; you can redistribute it and/
- * or modify it under the terms of the GNU General Public Li-
- * cence as published by the Free Software Foundation; either
- * version 2 of the Licence, or any later version.
+ * 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.
*
- * This program is distributed in the hope that it will be use-
- * ful, but WITHOUT ANY WARRANTY; without even the implied war-
- * ranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- * See the GNU General Public Licence for more details.
+ * 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.
*
- * You should have received a copy of the GNU General Public
- * Licence along with this program; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
- * USA.
+ * 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
*
* Authors:
* Florian octo Forster <octo at verplant.org>
#include "common.h"
#include "utils_debug.h"
-extern int operating_mode;
+#ifdef HAVE_MATH_H
+# include <math.h>
+#endif
+
+/* for ntohl and htonl */
+#if HAVE_ARPA_INET_H
+# include <arpa/inet.h>
+#endif
#ifdef HAVE_LIBKSTAT
extern kstat_ctl_t *kc;
#endif
-#ifdef HAVE_LIBRRD
-static char *rra_def[] =
-{
- "RRA:AVERAGE:0.2:6:1500",
- "RRA:AVERAGE:0.1:180:1680",
- "RRA:AVERAGE:0.1:2160:1520",
- "RRA:MIN:0.2:6:1500",
- "RRA:MIN:0.1:180:1680",
- "RRA:MIN:0.1:2160:1520",
- "RRA:MAX:0.2:6:1500",
- "RRA:MAX:0.1:180:1680",
- "RRA:MAX:0.1:2160:1520",
- NULL
-};
-static int rra_num = 9;
-#endif /* HAVE_LIBRRD */
-
void sstrncpy (char *d, const char *s, int len)
{
strncpy (d, s, len);
}
#endif
+ssize_t sread (int fd, void *buf, size_t count)
+{
+ char *ptr;
+ size_t nleft;
+ ssize_t status;
+
+ ptr = (char *) buf;
+ nleft = count;
+
+ while (nleft > 0)
+ {
+ status = read (fd, (void *) ptr, nleft);
+
+ if ((status < 0) && ((errno == EAGAIN) || (errno == EINTR)))
+ continue;
+
+ if (status < 0)
+ return (status);
+
+ if (status == 0)
+ {
+ DBG ("Received EOF from fd %i. "
+ "Closing fd and returning error.",
+ fd);
+ close (fd);
+ return (-1);
+ }
+
+ assert (nleft >= status);
+
+ nleft = nleft - status;
+ ptr = ptr + status;
+ }
+
+ return (0);
+}
+
+
+ssize_t swrite (int fd, const void *buf, size_t count)
+{
+ const char *ptr;
+ size_t nleft;
+ ssize_t status;
+
+ ptr = (const char *) buf;
+ nleft = count;
+
+ while (nleft > 0)
+ {
+ status = write (fd, (const void *) ptr, nleft);
+
+ if ((status < 0) && ((errno == EAGAIN) || (errno == EINTR)))
+ continue;
+
+ if (status < 0)
+ return (status);
+
+ nleft = nleft - status;
+ ptr = ptr + status;
+ }
+
+ return (0);
+}
+
int strsplit (char *string, char **fields, size_t size)
{
size_t i;
return (strlen (dst));
}
+int strsubstitute (char *str, char c_from, char c_to)
+{
+ int ret;
+
+ if (str == NULL)
+ return (-1);
+
+ ret = 0;
+ while (*str != '\0')
+ {
+ if (*str == c_from)
+ {
+ *str = c_to;
+ ret++;
+ }
+ str++;
+ }
+
+ return (ret);
+}
+
int escape_slashes (char *buf, int buf_len)
{
int i;
return (0);
}
-static int check_create_dir (const char *file_orig)
+int timeval_sub_timespec (struct timeval *tv0, struct timeval *tv1, struct timespec *ret)
+{
+ if ((tv0 == NULL) || (tv1 == NULL) || (ret == NULL))
+ return (-2);
+
+ if ((tv0->tv_sec < tv1->tv_sec)
+ || ((tv0->tv_sec == tv1->tv_sec) && (tv0->tv_usec < tv1->tv_usec)))
+ return (-1);
+
+ ret->tv_sec = tv0->tv_sec - tv1->tv_sec;
+ ret->tv_nsec = 1000 * ((long) (tv0->tv_usec - tv1->tv_usec));
+
+ if (ret->tv_nsec < 0)
+ {
+ assert (ret->tv_sec > 0);
+
+ ret->tv_nsec += 1000000000;
+ ret->tv_sec -= 1;
+ }
+
+ return (0);
+}
+
+int check_create_dir (const char *file_orig)
{
struct stat statbuf;
int fields_num;
char *ptr;
int last_is_file = 1;
+ int path_is_absolute = 0;
int len;
int i;
*/
if (file_orig[len - 1] == '/')
last_is_file = 0;
+ if (file_orig[0] == '/')
+ path_is_absolute = 1;
/*
* Create a copy for `strtok' to destroy
/*
* Join the components together again
*/
- if (strjoin (dir, dir_len, fields, i + 1, "/") < 0)
+ dir[0] = '/';
+ if (strjoin (dir + path_is_absolute, dir_len - path_is_absolute,
+ fields, i + 1, "/") < 0)
{
syslog (LOG_ERR, "strjoin failed: `%s', component #%i", file_orig, i);
return (-1);
return (0);
}
-static int log_create_file (char *filename, char **ds_def, int ds_num)
-{
- FILE *log;
- int i;
-
- log = fopen (filename, "w");
- if (log == NULL)
- {
- syslog (LOG_WARNING, "Failed to create %s: %s", filename,
- strerror(errno));
- return (-1);
- }
-
- for (i = 0; i < ds_num; i++)
- {
- char *name;
- char *tmp;
-
- name = index (ds_def[i], ':');
- if (name == NULL)
- {
- syslog (LOG_WARNING, "Invalid DS definition '%s' for %s",
- ds_def[i], filename);
- fclose(log);
- remove(filename);
- return (-1);
- }
-
- name += 1;
- tmp = index(name, ':');
- if (tmp == NULL)
- {
- syslog (LOG_WARNING, "Invalid DS definition '%s' for %s",
- ds_def[i], filename);
- fclose(log);
- remove(filename);
- return (-1);
- }
-
- if (i != 0)
- fprintf (log, ":");
- fprintf(log, "%.*s", (tmp - name), name);
- }
- fprintf(log, "\n");
- fclose(log);
-
- return 0;
-}
-
-static int log_update_file (char *host, char *file, char *values,
- char **ds_def, int ds_num)
-{
- char *tmp;
- FILE *fp;
- struct stat statbuf;
- char full_file[1024];
-
- /* host == NULL => local mode */
- if (host != NULL)
- {
- if (snprintf (full_file, 1024, "%s/%s", host, file) >= 1024)
- return (-1);
- }
- else
- {
- if (snprintf (full_file, 1024, "%s", file) >= 1024)
- return (-1);
- }
-
- strncpy (full_file, file, 1024);
-
- tmp = full_file + strlen (full_file) - 4;
- assert (tmp > 0);
-
- /* Change the filename for logfiles. */
- if (strncmp (tmp, ".rrd", 4) == 0)
- {
- time_t now;
- struct tm *tm;
-
- now = time (NULL);
- tm = localtime (&now);
-
- strftime (tmp, 1024 - (tmp - full_file), "-%Y-%m-%d", tm);
-
- /* `localtime(3)' returns a pointer to static data,
- * therefore the pointer may not be free'd. */
- }
- else
- DBG ("The filename ends with `%s' which is unexpected.", tmp);
-
- if (stat (full_file, &statbuf) == -1)
- {
- if (errno == ENOENT)
- {
- if (log_create_file (full_file, ds_def, ds_num))
- return (-1);
- }
- else
- {
- syslog (LOG_ERR, "stat %s: %s", full_file, strerror (errno));
- return (-1);
- }
- }
- else if (!S_ISREG (statbuf.st_mode))
- {
- syslog (LOG_ERR, "stat %s: Not a regular file!", full_file);
- return (-1);
- }
-
-
- fp = fopen (full_file, "a");
- if (fp == NULL)
- {
- syslog (LOG_WARNING, "Failed to append to %s: %s", full_file,
- strerror(errno));
- return (-1);
- }
- fprintf(fp, "%s\n", values);
- fclose(fp);
-
- return (0);
-} /* int log_update_file */
-
-#if HAVE_LIBRRD
-static int rrd_create_file (char *filename, char **ds_def, int ds_num)
-{
- char **argv;
- int argc;
- int i, j;
- int status = 0;
-
- if (check_create_dir (filename))
- return (-1);
-
- argc = ds_num + rra_num + 4;
-
- if ((argv = (char **) malloc (sizeof (char *) * (argc + 1))) == NULL)
- {
- syslog (LOG_ERR, "rrd_create failed: %s", strerror (errno));
- return (-1);
- }
-
- argv[0] = "create";
- argv[1] = filename;
- argv[2] = "-s";
- argv[3] = "10";
-
- j = 4;
- for (i = 0; i < ds_num; i++)
- argv[j++] = ds_def[i];
- for (i = 0; i < rra_num; i++)
- argv[j++] = rra_def[i];
- argv[j] = NULL;
-
- optind = 0; /* bug in librrd? */
- rrd_clear_error ();
- if (rrd_create (argc, argv) == -1)
- {
- syslog (LOG_ERR, "rrd_create failed: %s: %s", filename, rrd_get_error ());
- status = -1;
- }
-
- free (argv);
-
- return (status);
-}
-#endif /* HAVE_LIBRRD */
-
-int rrd_update_file (char *host, char *file, char *values,
- char **ds_def, int ds_num)
-{
-#if HAVE_LIBRRD
- struct stat statbuf;
- char full_file[1024];
- char *argv[4] = { "update", full_file, values, NULL };
-#endif /* HAVE_LIBRRD */
-
- /* I'd rather have a function `common_update_file' to make this
- * decission, but for that we'd need to touch all plugins.. */
- if (operating_mode == MODE_LOG)
- return (log_update_file (host, file, values,
- ds_def, ds_num));
-
-#if HAVE_LIBRRD
- /* host == NULL => local mode */
- if (host != NULL)
- {
- if (snprintf (full_file, 1024, "%s/%s", host, file) >= 1024)
- return (-1);
- }
- else
- {
- if (snprintf (full_file, 1024, "%s", file) >= 1024)
- return (-1);
- }
-
- if (stat (full_file, &statbuf) == -1)
- {
- if (errno == ENOENT)
- {
- if (rrd_create_file (full_file, ds_def, ds_num))
- return (-1);
- }
- else
- {
- syslog (LOG_ERR, "stat %s: %s", full_file, strerror (errno));
- return (-1);
- }
- }
- else if (!S_ISREG (statbuf.st_mode))
- {
- syslog (LOG_ERR, "stat %s: Not a regular file!", full_file);
- return (-1);
- }
-
- optind = 0; /* bug in librrd? */
- rrd_clear_error ();
- if (rrd_update (3, argv) == -1)
- {
- syslog (LOG_WARNING, "rrd_update failed: %s: %s", full_file, rrd_get_error ());
- return (-1);
- }
- return (0);
-/* #endif HAVE_LIBRRD */
-
-#else
- syslog (LOG_ERR, "`rrd_update_file' was called, but collectd isn't linked against librrd!");
- return (-1);
-#endif
-}
-
#ifdef HAVE_LIBKSTAT
int get_kstat (kstat_t **ksp_ptr, char *module, int instance, char *name)
{
return (retval);
}
#endif /* HAVE_LIBKSTAT */
+
+unsigned long long ntohll (unsigned long long n)
+{
+#if __BYTE_ORDER == __BIG_ENDIAN
+ return (n);
+#else
+ return (((unsigned long long) ntohl (n)) << 32) + ntohl (n >> 32);
+#endif
+}
+
+unsigned long long htonll (unsigned long long n)
+{
+#if __BYTE_ORDER == __BIG_ENDIAN
+ return (n);
+#else
+ return (((unsigned long long) htonl (n)) << 32) + htonl (n >> 32);
+#endif
+}
projects / collectd.git / blobdiff