/**
* collectd - src/common.c
- * Copyright (C) 2005-2007 Florian octo Forster
+ * Copyright (C) 2005-2008 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
* Niki W. Waibel <niki.waibel@gmx.net>
**/
+#if HAVE_CONFIG_H
+# include "config.h"
+#endif
+
#include "common.h"
#include "plugin.h"
+#if HAVE_PTHREAD_H
+# include <pthread.h>
+#endif
+
#ifdef HAVE_MATH_H
-# include <math.h>
+# include <math.h>
#endif
/* for ntohl and htonl */
extern kstat_ctl_t *kc;
#endif
+#if !HAVE_GETPWNAM_R
+static pthread_mutex_t getpwnam_r_lock = PTHREAD_MUTEX_INITIALIZER;
+#endif
+
+#if !HAVE_STRERROR_R
+static pthread_mutex_t strerror_r_lock = PTHREAD_MUTEX_INITIALIZER;
+#endif
+
void sstrncpy (char *d, const char *s, int len)
{
strncpy (d, s, len);
return (r);
}
-/* Don't use the return value of `strerror_r', because the GNU-people got
- * inventive there.. -octo */
+/* Even though Posix requires "strerror_r" to return an "int",
+ * some systems (e.g. the GNU libc) return a "char *" _and_
+ * ignore the second argument ... -tokkee */
char *sstrerror (int errnum, char *buf, size_t buflen)
{
buf[0] = '\0';
- strerror_r (errnum, buf, buflen);
+
+#if !HAVE_STRERROR_R
+ {
+ char *temp;
+
+ pthread_mutex_lock (&strerror_r_lock);
+
+ temp = strerror (errnum);
+ strncpy (buf, temp, buflen);
+
+ pthread_mutex_unlock (&strerror_r_lock);
+ }
+/* #endif !HAVE_STRERROR_R */
+
+#elif STRERROR_R_CHAR_P
+ {
+ char *temp;
+ temp = strerror_r (errnum, buf, buflen);
+ if (buf[0] == '\0')
+ {
+ if ((temp != NULL) && (temp != buf) && (temp[0] != '\0'))
+ strncpy (buf, temp, buflen);
+ else
+ strncpy (buf, "strerror_r did not return "
+ "an error message", buflen);
+ }
+ }
+/* #endif STRERROR_R_CHAR_P */
+
+#else
+ if (strerror_r (errnum, buf, buflen) != 0)
+ {
+ snprintf (buf, buflen, "Error #%i; "
+ "Additionally, strerror_r failed.",
+ errnum);
+ }
+#endif /* STRERROR_R_CHAR_P */
+
+ buf[buflen - 1] = '\0';
return (buf);
} /* char *sstrerror */
return (-1);
}
- assert (nleft >= status);
+ assert ((0 > status) || (nleft >= (size_t)status));
nleft = nleft - status;
ptr = ptr + status;
char **fields, size_t fields_num,
const char *sep)
{
- int field_len;
- int sep_len;
+ size_t field_len;
+ size_t sep_len;
int i;
memset (dst, '\0', dst_len);
if (sep != NULL)
sep_len = strlen (sep);
- for (i = 0; i < fields_num; i++)
+ for (i = 0; i < (int)fields_num; i++)
{
if ((i > 0) && (sep_len > 0))
{
}
return (ret);
-}
+} /* int strsubstitute */
int escape_slashes (char *buf, int buf_len)
{
return (0);
}
+ if (buf_len <= 1)
+ return (0);
+
/* Move one to the left */
- memmove (buf, buf + 1, buf_len - 1);
+ if (buf[0] == '/')
+ memmove (buf, buf + 1, buf_len - 1);
for (i = 0; i < buf_len - 1; i++)
{
buf[i] = '\0';
return (0);
-}
+} /* int escape_slashes */
int timeval_sub_timespec (struct timeval *tv0, struct timeval *tv1, struct timespec *ret)
{
if (mkdir (dir, 0755) == -1)
{
char errbuf[1024];
- ERROR ("mkdir (%s): %s", dir,
+ ERROR ("check_create_dir: mkdir (%s): %s", dir,
sstrerror (errno,
errbuf, sizeof (errbuf)));
return (-1);
}
return (0);
-}
+} /* check_create_dir */
#ifdef HAVE_LIBKSTAT
int get_kstat (kstat_t **ksp_ptr, char *module, int instance, char *name)
return (-1);
return (0);
} /* int format_name */
+
+int parse_identifier (char *str, char **ret_host,
+ char **ret_plugin, char **ret_plugin_instance,
+ char **ret_type, char **ret_type_instance)
+{
+ char *hostname = NULL;
+ char *plugin = NULL;
+ char *plugin_instance = NULL;
+ char *type = NULL;
+ char *type_instance = NULL;
+
+ hostname = str;
+ if (hostname == NULL)
+ return (-1);
+
+ plugin = strchr (hostname, '/');
+ if (plugin == NULL)
+ return (-1);
+ *plugin = '\0'; plugin++;
+
+ type = strchr (plugin, '/');
+ if (type == NULL)
+ return (-1);
+ *type = '\0'; type++;
+
+ plugin_instance = strchr (plugin, '-');
+ if (plugin_instance != NULL)
+ {
+ *plugin_instance = '\0';
+ plugin_instance++;
+ }
+
+ type_instance = strchr (type, '-');
+ if (type_instance != NULL)
+ {
+ *type_instance = '\0';
+ type_instance++;
+ }
+
+ *ret_host = hostname;
+ *ret_plugin = plugin;
+ *ret_plugin_instance = plugin_instance;
+ *ret_type = type;
+ *ret_type_instance = type_instance;
+ return (0);
+} /* int parse_identifier */
+
+int parse_values (char *buffer, value_list_t *vl, const data_set_t *ds)
+{
+ int i;
+ char *dummy;
+ char *ptr;
+ char *saveptr;
+
+ i = -1;
+ dummy = buffer;
+ saveptr = NULL;
+ while ((ptr = strtok_r (dummy, ":", &saveptr)) != NULL)
+ {
+ dummy = NULL;
+
+ if (i >= vl->values_len)
+ break;
+
+ if (i == -1)
+ {
+ if (strcmp ("N", ptr) == 0)
+ vl->time = time (NULL);
+ else
+ vl->time = (time_t) atoi (ptr);
+ }
+ else
+ {
+ if (strcmp ("U", ptr) == 0)
+ vl->values[i].gauge = NAN;
+ else if (ds->ds[i].type == DS_TYPE_COUNTER)
+ vl->values[i].counter = atoll (ptr);
+ else if (ds->ds[i].type == DS_TYPE_GAUGE)
+ vl->values[i].gauge = atof (ptr);
+ }
+
+ i++;
+ } /* while (strtok_r) */
+
+ if ((ptr != NULL) || (i != vl->values_len))
+ return (-1);
+ return (0);
+} /* int parse_values */
+
+#if !HAVE_GETPWNAM_R
+int getpwnam_r (const char *name, struct passwd *pwbuf, char *buf,
+ size_t buflen, struct passwd **pwbufp)
+{
+ int status = 0;
+ struct passwd *pw;
+
+ memset (pwbuf, '\0', sizeof (struct passwd));
+
+ pthread_mutex_lock (&getpwnam_r_lock);
+
+ do
+ {
+ pw = getpwnam (name);
+ if (pw == NULL)
+ {
+ status = (errno != 0) ? errno : ENOENT;
+ break;
+ }
+
+#define GETPWNAM_COPY_MEMBER(member) \
+ if (pw->member != NULL) \
+ { \
+ int len = strlen (pw->member); \
+ if (len >= buflen) \
+ { \
+ status = ENOMEM; \
+ break; \
+ } \
+ sstrncpy (buf, pw->member, buflen); \
+ pwbuf->member = buf; \
+ buf += (len + 1); \
+ buflen -= (len + 1); \
+ }
+ GETPWNAM_COPY_MEMBER(pw_name);
+ GETPWNAM_COPY_MEMBER(pw_passwd);
+ GETPWNAM_COPY_MEMBER(pw_gecos);
+ GETPWNAM_COPY_MEMBER(pw_dir);
+ GETPWNAM_COPY_MEMBER(pw_shell);
+
+ pwbuf->pw_uid = pw->pw_uid;
+ pwbuf->pw_gid = pw->pw_gid;
+
+ if (pwbufp != NULL)
+ *pwbufp = pwbuf;
+ } while (0);
+
+ pthread_mutex_unlock (&getpwnam_r_lock);
+
+ return (status);
+} /* int getpwnam_r */
+#endif /* !HAVE_GETPWNAM_R */
+
+int notification_init (notification_t *n, int severity, const char *message,
+ const char *host,
+ const char *plugin, const char *plugin_instance,
+ const char *type, const char *type_instance)
+{
+ memset (n, '\0', sizeof (notification_t));
+
+ n->severity = severity;
+
+ if (message != NULL)
+ strncpy (n->message, message, sizeof (n->message));
+ if (host != NULL)
+ strncpy (n->host, host, sizeof (n->host));
+ if (plugin != NULL)
+ strncpy (n->plugin, plugin, sizeof (n->plugin));
+ if (plugin_instance != NULL)
+ strncpy (n->plugin_instance, plugin_instance,
+ sizeof (n->plugin_instance));
+ if (type != NULL)
+ strncpy (n->type, type, sizeof (n->type));
+ if (type_instance != NULL)
+ strncpy (n->type_instance, type_instance,
+ sizeof (n->type_instance));
+
+ n->message[sizeof (n->message) - 1] = '\0';
+ n->host[sizeof (n->host) - 1] = '\0';
+ n->plugin[sizeof (n->plugin) - 1] = '\0';
+ n->plugin_instance[sizeof (n->plugin_instance) - 1] = '\0';
+ n->type[sizeof (n->type) - 1] = '\0';
+ n->type_instance[sizeof (n->type_instance) - 1] = '\0';
+
+ return (0);
+} /* int notification_init */
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