/**
* collectd - src/email.c
- * Copyright (C) 2006 Sebastian Harl
+ * Copyright (C) 2006,2007 Sebastian Harl
*
* 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
#if HAVE_LIBPTHREAD
# include <pthread.h>
-# define EMAIL_HAVE_READ 1
-#else
-# define EMAIL_HAVE_READ 0
#endif
#if HAVE_SYS_SELECT_H
#define MAX_CONNS 5
#define MAX_CONNS_LIMIT 16384
-#define log_err(...) syslog (LOG_ERR, MODULE_NAME": "__VA_ARGS__)
-#define log_warn(...) syslog (LOG_WARNING, MODULE_NAME": "__VA_ARGS__)
+#define log_err(...) ERROR (MODULE_NAME": "__VA_ARGS__)
+#define log_warn(...) WARNING (MODULE_NAME": "__VA_ARGS__)
/*
* Private data structures
*/
-#if EMAIL_HAVE_READ
/* linked list of email and check types */
typedef struct type {
char *name;
conn_t *head;
conn_t *tail;
} conn_list_t;
-#endif /* EMAIL_HAVE_READ */
/*
* Private variables
*/
-#if EMAIL_HAVE_READ
/* valid configuration file keys */
-static char *config_keys[] =
+static const char *config_keys[] =
{
"SocketGroup",
"SocketPerms",
- "MaxConns",
- NULL
+ "MaxConns"
+};
+static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
+
+static data_source_t gauge_dsrc[1] =
+{
+ {"value", DS_TYPE_GAUGE, 0.0, NAN}
+};
+
+static data_set_t email_count_ds =
+{
+ "email_count", 1, gauge_dsrc
+};
+
+static data_set_t email_size_ds =
+{
+ "email_size", 1, gauge_dsrc
+};
+
+static data_set_t spam_check_ds =
+{
+ "spam_check", 1, gauge_dsrc
+};
+
+static data_source_t spam_score_dsrc[1] =
+{
+ {"score", DS_TYPE_GAUGE, NAN, NAN}
+};
+
+static data_set_t spam_score_ds =
+{
+ "spam_score", 1, spam_score_dsrc
};
-static int config_keys_num = 3;
/* socket configuration */
static char *sock_group = COLLECTD_GRP_NAME;
static pthread_mutex_t check_mutex = PTHREAD_MUTEX_INITIALIZER;
static type_list_t check;
-#endif /* EMAIL_HAVE_READ */
-
-#define COUNT_FILE "email/email-%s.rrd"
-static char *count_ds_def[] =
-{
- "DS:count:GAUGE:"COLLECTD_HEARTBEAT":0:U",
- NULL
-};
-static int count_ds_num = 1;
-
-#define SIZE_FILE "email/email_size-%s.rrd"
-static char *size_ds_def[] =
-{
- "DS:size:GAUGE:"COLLECTD_HEARTBEAT":0:U",
- NULL
-};
-static int size_ds_num = 1;
-#define SCORE_FILE "email/spam_score.rrd"
-static char *score_ds_def[] =
-{
- "DS:score:GAUGE:"COLLECTD_HEARTBEAT":U:U",
- NULL
-};
-static int score_ds_num = 1;
-
-#define CHECK_FILE "email/spam_check-%s.rrd"
-static char *check_ds_def[] =
-{
- "DS:hits:GAUGE:"COLLECTD_HEARTBEAT":0:U",
- NULL
-};
-static int check_ds_num = 1;
-
-#if EMAIL_HAVE_READ
-static int email_config (char *key, char *value)
+/*
+ * Private functions
+ */
+static int email_config (const char *key, const char *value)
{
if (0 == strcasecmp (key, "SocketGroup")) {
sock_group = sstrdup (value);
FD_SET (src->socket, &fdset);
if (-1 == select (src->socket + 1, &fdset, NULL, NULL, NULL)) {
- log_err ("select() failed: %s", strerror (errno));
+ char errbuf[1024];
+ log_err ("select() failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
return '\0';
}
errno = 0;
if (0 > (len = read (src->socket, (void *)&ret, 1))) {
if (EINTR != errno) {
- log_err ("read() failed: %s", strerror (errno));
+ char errbuf[1024];
+ log_err ("read() failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
return '\0';
}
}
FD_SET (src->socket, &fdset);
if (-1 == select (src->socket + 1, &fdset, NULL, NULL, NULL)) {
- log_err ("select() failed: %s", strerror (errno));
+ char errbuf[1024];
+ log_err ("select() failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
return NULL;
}
(void *)(src->buffer + src->idx),
BUFSIZE - src->idx))) {
if (EINTR != errno) {
- log_err ("read() failed: %s", strerror (errno));
+ char errbuf[1024];
+ log_err ("read() failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
return NULL;
}
}
errno = 0;
if (-1 == fcntl (connection->socket, F_GETFL, &flags)) {
- log_err ("fcntl() failed: %s", strerror (errno));
+ char errbuf[1024];
+ log_err ("fcntl() failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
loop = 0;
}
errno = 0;
if (-1 == fcntl (connection->socket, F_SETFL, flags | O_NONBLOCK)) {
- log_err ("fcntl() failed: %s", strerror (errno));
+ char errbuf[1024];
+ log_err ("fcntl() failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
loop = 0;
}
}
/* create UNIX socket */
errno = 0;
if (-1 == (connector_socket = socket (PF_UNIX, SOCK_STREAM, 0))) {
+ char errbuf[1024];
disabled = 1;
- log_err ("socket() failed: %s", strerror (errno));
+ log_err ("socket() failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
pthread_exit ((void *)1);
}
if (-1 == bind (connector_socket, (struct sockaddr *)&addr,
offsetof (struct sockaddr_un, sun_path)
+ strlen(addr.sun_path))) {
+ char errbuf[1024];
disabled = 1;
- log_err ("bind() failed: %s", strerror (errno));
+ log_err ("bind() failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
pthread_exit ((void *)1);
}
errno = 0;
if (-1 == listen (connector_socket, 5)) {
+ char errbuf[1024];
disabled = 1;
- log_err ("listen() failed: %s", strerror (errno));
+ log_err ("listen() failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
pthread_exit ((void *)1);
}
- if ((uid_t)0 == geteuid ()) {
+ if ((uid_t) 0 == geteuid ())
+ {
+ struct group sg;
struct group *grp;
-
- errno = 0;
- if (NULL != (grp = getgrnam (sock_group))) {
- errno = 0;
- if (0 != chown (SOCK_PATH, (uid_t)-1, grp->gr_gid)) {
- log_warn ("chown() failed: %s", strerror (errno));
- }
+ char grbuf[2048];
+ int status;
+
+ grp = NULL;
+ status = getgrnam_r (sock_group, &sg, grbuf, sizeof (grbuf), &grp);
+ if (status != 0)
+ {
+ char errbuf[1024];
+ log_warn ("getgrnam_r (%s) failed: %s", sock_group,
+ sstrerror (errno, errbuf, sizeof (errbuf)));
}
- else {
- log_warn ("getgrnam() failed: %s", strerror (errno));
+ else if (grp == NULL)
+ {
+ log_warn ("No such group: `%s'", sock_group);
+ }
+ else
+ {
+ status = chown (SOCK_PATH, (uid_t) -1, grp->gr_gid);
+ if (status != 0)
+ {
+ char errbuf[1024];
+ log_warn ("chown (%s, -1, %i) failed: %s",
+ SOCK_PATH, (int) grp->gr_gid,
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ }
}
}
- else {
+ else /* geteuid != 0 */
+ {
log_warn ("not running as root");
}
errno = 0;
if (0 != chmod (SOCK_PATH, sock_perms)) {
- log_warn ("chmod() failed: %s", strerror (errno));
+ char errbuf[1024];
+ log_warn ("chmod() failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
}
{ /* initialize collector threads */
if (0 != (err = pthread_create (&collectors[i]->thread, &ptattr,
collect, collectors[i]))) {
- log_err ("pthread_create() failed: %s", strerror (err));
+ char errbuf[1024];
+ log_err ("pthread_create() failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
}
}
errno = 0;
if (-1 == (remote = accept (connector_socket, NULL, NULL))) {
if (EINTR != errno) {
+ char errbuf[1024];
disabled = 1;
- log_err ("accept() failed: %s", strerror (errno));
+ log_err ("accept() failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
pthread_exit ((void *)1);
}
}
}
pthread_exit ((void *)0);
} /* static void *open_connection (void *) */
-#endif /* EMAIL_HAVE_READ */
-static void email_init (void)
+static int email_init (void)
{
-#if EMAIL_HAVE_READ
int err = 0;
if (0 != (err = pthread_create (&connector, NULL,
open_connection, NULL))) {
+ char errbuf[1024];
disabled = 1;
- log_err ("pthread_create() failed: %s", strerror (err));
- return;
+ log_err ("pthread_create() failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (-1);
}
-#endif /* EMAIL_HAVE_READ */
- return;
-} /* static void email_init (void) */
-#if EMAIL_HAVE_READ
-static void email_shutdown (void)
+ return (0);
+} /* int email_init */
+
+static int email_shutdown (void)
{
int i = 0;
if (disabled)
- return;
+ return (0);
pthread_kill (connector, SIGTERM);
close (connector_socket);
pthread_mutex_unlock (&conns_mutex);
unlink (SOCK_PATH);
- return;
-} /* static void email_shutdown (void) */
-#endif /* EMAIL_HAVE_READ */
-
-static void count_write (char *host, char *inst, char *val)
-{
- char file[BUFSIZE] = "";
- int len = 0;
-
- len = snprintf (file, BUFSIZE, COUNT_FILE, inst);
- if ((len < 0) || (len >= BUFSIZE))
- return;
-
- rrd_update_file (host, file, val, count_ds_def, count_ds_num);
- return;
-} /* static void email_write (char *host, char *inst, char *val) */
-
-static void size_write (char *host, char *inst, char *val)
-{
- char file[BUFSIZE] = "";
- int len = 0;
-
- len = snprintf (file, BUFSIZE, SIZE_FILE, inst);
- if ((len < 0) || (len >= BUFSIZE))
- return;
-
- rrd_update_file (host, file, val, size_ds_def, size_ds_num);
- return;
-} /* static void size_write (char *host, char *inst, char *val) */
-
-static void score_write (char *host, char *inst, char *val)
-{
- rrd_update_file (host, SCORE_FILE, val, score_ds_def, score_ds_num);
- return;
-} /* static void score_write (char *host, char *inst, char *val) */
-static void check_write (char *host, char *inst, char *val)
-{
- char file[BUFSIZE] = "";
- int len = 0;
-
- len = snprintf (file, BUFSIZE, CHECK_FILE, inst);
- if ((len < 0) || (len >= BUFSIZE))
- return;
-
- rrd_update_file (host, file, val, check_ds_def, check_ds_num);
- return;
-} /* static void check_write (char *host, char *inst, char *val) */
+ return (0);
+} /* static void email_shutdown (void) */
-#if EMAIL_HAVE_READ
-static void type_submit (char *plugin, char *inst, int value)
+static void email_submit (const char *type, const char *type_instance, gauge_t value)
{
- char buf[BUFSIZE] = "";
- int len = 0;
+ value_t values[1];
+ value_list_t vl = VALUE_LIST_INIT;
- len = snprintf (buf, BUFSIZE, "%u:%i", (unsigned int)curtime, value);
- if ((len < 0) || (len >= BUFSIZE))
- return;
+ values[0].gauge = value;
- plugin_submit (plugin, inst, buf);
- return;
-} /* static void type_submit (char *, char *, int) */
-
-static void score_submit (double value)
-{
- char buf[BUFSIZE] = "";
- int len = 0;
+ vl.values = values;
+ vl.values_len = 1;
+ vl.time = time (NULL);
+ strcpy (vl.host, hostname_g);
+ strcpy (vl.plugin, "email");
+ strncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
- len = snprintf (buf, BUFSIZE, "%u:%.2f", (unsigned int)curtime, value);
- if ((len < 0) || (len >= BUFSIZE))
- return;
-
- plugin_submit ("email_spam_score", "-", buf);
- return;
-} /* static void score_submit (double) */
+ plugin_dispatch_values (type, &vl);
+} /* void email_submit */
/* Copy list l1 to list l2. l2 may partly exist already, but it is assumed
* that neither the order nor the name of any element of either list is
return;
}
-static void email_read (void)
+static int email_read (void)
{
type_t *ptr;
static type_list_t *chk;
if (disabled)
- return;
+ return (-1);
if (NULL == cnt) {
cnt = (type_list_t *)smalloc (sizeof (type_list_t));
pthread_mutex_unlock (&count_mutex);
for (ptr = cnt->head; NULL != ptr; ptr = ptr->next) {
- type_submit ("email_count", ptr->name, ptr->value);
+ email_submit ("email_count", ptr->name, ptr->value);
}
/* email size */
pthread_mutex_unlock (&size_mutex);
for (ptr = sz->head; NULL != ptr; ptr = ptr->next) {
- type_submit ("email_size", ptr->name, ptr->value);
+ email_submit ("email_size", ptr->name, ptr->value);
}
/* spam score */
pthread_mutex_unlock (&score_mutex);
- score_submit (sc);
+ email_submit ("spam_score", "", sc);
/* spam checks */
pthread_mutex_lock (&check_mutex);
pthread_mutex_unlock (&check_mutex);
- for (ptr = chk->head; NULL != ptr; ptr = ptr->next) {
- type_submit ("email_spam_check", ptr->name, ptr->value);
- }
- return;
-} /* static void read (void) */
-#else /* if !EMAIL_HAVE_READ */
-# define email_read NULL
-#endif
+ for (ptr = chk->head; NULL != ptr; ptr = ptr->next)
+ email_submit ("spam_check", ptr->name, ptr->value);
-void module_register (void)
+ return (0);
+} /* int email_read */
+
+void module_register (modreg_e load)
{
- plugin_register (MODULE_NAME, email_init, email_read, NULL);
- plugin_register ("email_count", NULL, NULL, count_write);
- plugin_register ("email_size", NULL, NULL, size_write);
- plugin_register ("email_spam_score", NULL, NULL, score_write);
- plugin_register ("email_spam_check", NULL, NULL, check_write);
-#if EMAIL_HAVE_READ
- plugin_register_shutdown (MODULE_NAME, email_shutdown);
- cf_register (MODULE_NAME, email_config, config_keys, config_keys_num);
-#endif /* EMAIL_HAVE_READ */
- return;
-} /* void module_register (void) */
+ if (load & MR_DATASETS)
+ {
+ plugin_register_data_set (&email_count_ds);
+ plugin_register_data_set (&email_size_ds);
+ plugin_register_data_set (&spam_check_ds);
+ plugin_register_data_set (&spam_score_ds);
+ }
-/* vim: set sw=4 ts=4 tw=78 noexpandtab : */
+ if (load & MR_READ)
+ {
+ plugin_register_config ("email", email_config, config_keys, config_keys_num);
+ plugin_register_init ("email", email_init);
+ plugin_register_read ("email", email_read);
+ }
+ plugin_register_shutdown ("email", email_shutdown);
+} /* void module_register */
+/* vim: set sw=4 ts=4 tw=78 noexpandtab : */
projects / collectd.git / blobdiff