#include <pthread.h>
+#define PL_NORMAL 0x01
+#define PL_NOTIF_ACTION 0x02
+#define PL_NAGIOS_PLUGIN 0x04
+
/*
* Private data types
*/
char *user;
char *group;
char *exec;
+ char **argv;
int pid;
+ int status;
+ int flags;
program_list_t *next;
};
/*
* Private variables
*/
-static const char *config_keys[] =
-{
- "Exec"
-};
-static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
-
static program_list_t *pl_head = NULL;
/*
* Functions
*/
-static int exec_config (const char *key, const char *value)
+static void sigchld_handler (int signal) /* {{{ */
{
- if (strcasecmp ("Exec", key) == 0)
+ pid_t pid;
+ int status;
+ while ((pid = waitpid (-1, &status, WNOHANG)) > 0)
{
program_list_t *pl;
- pl = (program_list_t *) malloc (sizeof (program_list_t));
- if (pl == NULL)
- return (1);
- memset (pl, '\0', sizeof (program_list_t));
+ for (pl = pl_head; pl != NULL; pl = pl->next)
+ if (pl->pid == pid)
+ break;
+ if (pl != NULL)
+ pl->status = status;
+ } /* while (waitpid) */
+} /* void sigchld_handler }}} */
+
+static int exec_config_exec (oconfig_item_t *ci) /* {{{ */
+{
+ program_list_t *pl;
+ char buffer[128];
+ int i;
- pl->user = strdup (value);
- if (pl->user == NULL)
- {
- sfree (pl);
- return (1);
- }
+ if (ci->children_num != 0)
+ {
+ WARNING ("exec plugin: The config option `%s' may not be a block.",
+ ci->key);
+ return (-1);
+ }
+ if (ci->values_num < 2)
+ {
+ WARNING ("exec plugin: The config option `%s' needs at least two "
+ "arguments.", ci->key);
+ return (-1);
+ }
+ if ((ci->values[0].type != OCONFIG_TYPE_STRING)
+ || (ci->values[1].type != OCONFIG_TYPE_STRING))
+ {
+ WARNING ("exec plugin: The first two arguments to the `%s' option must "
+ "be string arguments.", ci->key);
+ return (-1);
+ }
+
+ pl = (program_list_t *) malloc (sizeof (program_list_t));
+ if (pl == NULL)
+ {
+ ERROR ("exec plugin: malloc failed.");
+ return (-1);
+ }
+ memset (pl, '\0', sizeof (program_list_t));
+
+ if (strcasecmp ("NagiosExec", ci->key) == 0)
+ pl->flags |= PL_NAGIOS_PLUGIN;
+ else if (strcasecmp ("NotificationExec", ci->key) == 0)
+ pl->flags |= PL_NOTIF_ACTION;
+ else
+ pl->flags |= PL_NORMAL;
+
+ pl->user = strdup (ci->values[0].value.string);
+ if (pl->user == NULL)
+ {
+ ERROR ("exec plugin: strdup failed.");
+ sfree (pl);
+ return (-1);
+ }
+
+ pl->group = strchr (pl->user, ':');
+ if (pl->group != NULL)
+ {
+ *pl->group = '\0';
+ pl->group++;
+ }
+
+ pl->exec = strdup (ci->values[1].value.string);
+ if (pl->exec == NULL)
+ {
+ ERROR ("exec plugin: strdup failed.");
+ sfree (pl->user);
+ sfree (pl);
+ return (-1);
+ }
- pl->exec = strchr (pl->user, ' ');
- if (pl->exec == NULL)
+ pl->argv = (char **) malloc (ci->values_num * sizeof (char *));
+ if (pl->argv == NULL)
+ {
+ ERROR ("exec plugin: malloc failed.");
+ sfree (pl->exec);
+ sfree (pl->user);
+ sfree (pl);
+ return (-1);
+ }
+ memset (pl->argv, '\0', ci->values_num * sizeof (char *));
+
+ {
+ char *tmp = strrchr (ci->values[1].value.string, '/');
+ if (tmp == NULL)
+ strncpy (buffer, ci->values[1].value.string, sizeof (buffer));
+ else
+ strncpy (buffer, tmp + 1, sizeof (buffer));
+ buffer[sizeof (buffer) - 1] = '\0';
+ }
+ pl->argv[0] = strdup (buffer);
+ if (pl->argv[0] == NULL)
+ {
+ ERROR ("exec plugin: malloc failed.");
+ sfree (pl->argv);
+ sfree (pl->exec);
+ sfree (pl->user);
+ sfree (pl);
+ return (-1);
+ }
+
+ for (i = 1; i < (ci->values_num - 1); i++)
+ {
+ if (ci->values[i + 1].type == OCONFIG_TYPE_STRING)
{
- sfree (pl->user);
- sfree (pl);
- return (1);
+ pl->argv[i] = strdup (ci->values[i + 1].value.string);
}
- while (*pl->exec == ' ')
+ else
{
- *pl->exec = '\0';
- pl->exec++;
+ if (ci->values[i + 1].type == OCONFIG_TYPE_NUMBER)
+ {
+ snprintf (buffer, sizeof (buffer), "%lf",
+ ci->values[i + 1].value.number);
+ }
+ else
+ {
+ if (ci->values[i + 1].value.boolean)
+ strncpy (buffer, "true", sizeof (buffer));
+ else
+ strncpy (buffer, "false", sizeof (buffer));
+ }
+ buffer[sizeof (buffer) - 1] = '\0';
+
+ pl->argv[i] = strdup (buffer);
}
- if (*pl->exec == '\0')
+ if (pl->argv[i] == NULL)
{
- sfree (pl->user);
- sfree (pl);
- return (1);
+ ERROR ("exec plugin: strdup failed.");
+ break;
}
+ } /* for (i) */
- pl->next = pl_head;
- pl_head = pl;
-
- pl->group = strchr (pl->user, ':');
- if (NULL != pl->group) {
- *pl->group = '\0';
- pl->group++;
+ if (i < (ci->values_num - 1))
+ {
+ while ((--i) >= 0)
+ {
+ sfree (pl->argv[i]);
}
+ sfree (pl->argv);
+ sfree (pl->exec);
+ sfree (pl->user);
+ sfree (pl);
+ return (-1);
}
- else
+
+ for (i = 0; pl->argv[i] != NULL; i++)
{
- return (-1);
+ DEBUG ("exec plugin: argv[%i] = %s", i, pl->argv[i]);
}
+ pl->next = pl_head;
+ pl_head = pl;
+
return (0);
-} /* int exec_config */
+} /* int exec_config_exec }}} */
-static void exec_child (program_list_t *pl)
+static int exec_config (oconfig_item_t *ci) /* {{{ */
+{
+ int i;
+
+ for (i = 0; i < ci->children_num; i++)
+ {
+ oconfig_item_t *child = ci->children + i;
+ if ((strcasecmp ("Exec", child->key) == 0)
+ || (strcasecmp ("NagiosExec", child->key) == 0)
+ || (strcasecmp ("NotificationExec", child->key) == 0))
+ exec_config_exec (child);
+ else
+ {
+ WARNING ("exec plugin: Unknown config option `%s'.", child->key);
+ }
+ } /* for (i) */
+
+ return (0);
+} /* int exec_config }}} */
+
+static void exec_child (program_list_t *pl) /* {{{ */
{
int status;
int uid;
int gid;
int egid;
- char *arg0;
struct passwd *sp_ptr;
struct passwd sp;
exit (-1);
}
- arg0 = strrchr (pl->exec, '/');
- if (arg0 != NULL)
- arg0++;
- if ((arg0 == NULL) || (*arg0 == '\0'))
- arg0 = pl->exec;
-
- status = execlp (pl->exec, arg0, (char *) 0);
+ status = execvp (pl->exec, pl->argv);
ERROR ("exec plugin: exec failed: %s",
sstrerror (errno, errbuf, sizeof (errbuf)));
exit (-1);
-} /* void exec_child */
+} /* void exec_child }}} */
-static int fork_child (program_list_t *pl)
+static int fork_child (program_list_t *pl) /* {{{ */
{
int fd_pipe[2];
int status;
close (fd_pipe[1]);
return (fd_pipe[0]);
-} /* int fork_child */
+} /* int fork_child }}} */
-static int parse_line (char *buffer)
+static int parse_line (char *buffer) /* {{{ */
{
char *fields[256];
int fields_num;
handle_putval (stdout, fields, fields_num + 1);
return (0);
-} /* int parse_line */
+} /* int parse_line }}} */
-static void *exec_read_one (void *arg)
+static void *exec_read_one (void *arg) /* {{{ */
{
program_list_t *pl = (program_list_t *) arg;
int fd;
FILE *fh;
char buffer[1024];
+ int status;
fd = fork_child (pl);
if (fd < 0)
pthread_exit ((void *) 1);
}
+ buffer[0] = '\0';
while (fgets (buffer, sizeof (buffer), fh) != NULL)
{
int len;
DEBUG ("exec plugin: exec_read_one: buffer = %s", buffer);
+ if (pl->flags & PL_NAGIOS_PLUGIN)
+ break;
+
parse_line (buffer);
} /* while (fgets) */
fclose (fh);
- pl->pid = 0;
+ if (waitpid (pl->pid, &status, 0) > 0)
+ pl->status = status;
+
+ DEBUG ("exec plugin: Child %i exited with status %i.",
+ (int) pl->pid, pl->status);
+
+ if (pl->flags & PL_NAGIOS_PLUGIN)
+ {
+ notification_t n;
+
+ memset (&n, '\0', sizeof (n));
+
+ n.severity = NOTIF_FAILURE;
+ if (pl->status == 0)
+ n.severity = NOTIF_OKAY;
+ else if (pl->status == 1)
+ n.severity = NOTIF_WARNING;
+
+ strncpy (n.message, buffer, sizeof (n.message));
+ n.message[sizeof (n.message) - 1] = '\0';
+
+ n.time = time (NULL);
+
+ strncpy (n.host, hostname_g, sizeof (n.host));
+ n.host[sizeof (n.host) - 1] = '\0';
+
+ plugin_dispatch_notification (&n);
+ }
+
+ pl->pid = 0;
pthread_exit ((void *) 0);
return (NULL);
-} /* void *exec_read_one */
+} /* void *exec_read_one }}} */
+
+static int exec_init (void) /* {{{ */
+{
+ struct sigaction sa;
+
+ memset (&sa, '\0', sizeof (sa));
+ sa.sa_handler = sigchld_handler;
+ sigaction (SIGCHLD, &sa, NULL);
+
+ return (0);
+} /* int exec_init }}} */
-static int exec_read (void)
+static int exec_read (void) /* {{{ */
{
program_list_t *pl;
} /* for (pl) */
return (0);
-} /* int exec_read */
+} /* int exec_read }}} */
-static int exec_shutdown (void)
+static int exec_shutdown (void) /* {{{ */
{
program_list_t *pl;
program_list_t *next;
pl_head = NULL;
return (0);
-} /* int exec_shutdown */
+} /* int exec_shutdown }}} */
void module_register (void)
{
- plugin_register_config ("exec", exec_config, config_keys, config_keys_num);
+ plugin_register_complex_config ("exec", exec_config);
+ plugin_register_init ("exec", exec_init);
plugin_register_read ("exec", exec_read);
plugin_register_shutdown ("exec", exec_shutdown);
} /* void module_register */
/*
- * vim:shiftwidth=2:softtabstop=2:tabstop=8
+ * vim:shiftwidth=2:softtabstop=2:tabstop=8:fdm=marker
*/
projects / collectd.git / blobdiff