Merge branch 'pull/master'

[collectd.git] / src / collectd.c

diff --git a/src/collectd.c b/src/collectd.c
index 0986e40..70223b7 100644 (file)
--- a/src/collectd.c
+++ b/src/collectd.c
@@ -23,8 +23,13 @@
 #include "collectd.h"
 #include "common.h"
 
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+
 #include "plugin.h"
 #include "configfile.h"
+#include "types_list.h"
 
 /*
  * Global variables
@@ -47,25 +52,63 @@ static void sigTermHandler (int signal)
        loop++;
 }
 
-static int init_global_variables (void)
+static int init_hostname (void)
 {
        const char *str;
 
+       struct addrinfo  ai_hints;
+       struct addrinfo *ai_list;
+       struct addrinfo *ai_ptr;
+       int status;
+
        str = global_option_get ("Hostname");
        if (str != NULL)
        {
                strncpy (hostname_g, str, sizeof (hostname_g));
+               hostname_g[sizeof (hostname_g) - 1] = '\0';
+               return (0);
        }
-       else
+
+       if (gethostname (hostname_g, sizeof (hostname_g)) != 0)
        {
-               if (gethostname (hostname_g, sizeof (hostname_g)) != 0)
-               {
-                       fprintf (stderr, "`gethostname' failed and no "
-                                       "hostname was configured.\n");
-                       return (-1);
-               }
+               fprintf (stderr, "`gethostname' failed and no "
+                               "hostname was configured.\n");
+               return (-1);
+       }
+
+       str = global_option_get ("FQDNLookup");
+       if ((strcasecmp ("false", str) == 0)
+                       || (strcasecmp ("no", str) == 0)
+                       || (strcasecmp ("off", str) == 0))
+               return (0);
+
+       memset (&ai_hints, '\0', sizeof (ai_hints));
+       ai_hints.ai_flags = AI_CANONNAME;
+
+       status = getaddrinfo (hostname_g, NULL, &ai_hints, &ai_list);
+       if (status != 0)
+       {
+               ERROR ("getaddrinfo failed.");
+               return (-1);
        }
-       DEBUG ("hostname_g = %s;", hostname_g);
+
+       for (ai_ptr = ai_list; ai_ptr != NULL; ai_ptr = ai_ptr->ai_next)
+       {
+               if (ai_ptr->ai_canonname == NULL)
+                       continue;
+
+               strncpy (hostname_g, ai_ptr->ai_canonname, sizeof (hostname_g));
+               hostname_g[sizeof (hostname_g) - 1] = '\0';
+               break;
+       }
+
+       freeaddrinfo (ai_list);
+       return (0);
+} /* int init_hostname */
+
+static int init_global_variables (void)
+{
+       const char *str;
 
        str = global_option_get ("Interval");
        if (str == NULL)
@@ -79,6 +122,10 @@ static int init_global_variables (void)
        }
        DEBUG ("interval_g = %i;", interval_g);
 
+       if (init_hostname () != 0)
+               return (-1);
+       DEBUG ("hostname_g = %s;", hostname_g);
+
        return (0);
 } /* int init_global_variables */
 
@@ -113,7 +160,7 @@ static int change_basedir (const char *orig_dir)
                        if (mkdir (orig_dir, 0755) == -1)
                        {
                                char errbuf[1024];
-                               ERROR ("mkdir (%s): %s", orig_dir,
+                               ERROR ("change_basedir: mkdir (%s): %s", orig_dir,
                                                sstrerror (errno, errbuf,
                                                        sizeof (errbuf)));
                                return (-1);
@@ -213,6 +260,7 @@ static int do_init (void)
        }
 #endif
 
+       read_types_list ();
        plugin_init_all ();
 
        return (0);
@@ -318,6 +366,7 @@ int main (int argc, char **argv)
        struct sigaction sigIntAction;
        struct sigaction sigTermAction;
        char *configfile = CONFIGFILE;
+       int test_config  = 0;
        const char *basedir;
 #if COLLECT_DAEMON
        struct sigaction sigChldAction;
@@ -330,7 +379,7 @@ int main (int argc, char **argv)
        {
                int c;
 
-               c = getopt (argc, argv, "hC:"
+               c = getopt (argc, argv, "htC:"
 #if COLLECT_DAEMON
                                "fP:"
 #endif
@@ -344,6 +393,9 @@ int main (int argc, char **argv)
                        case 'C':
                                configfile = optarg;
                                break;
+                       case 't':
+                               test_config = 1;
+                               break;
 #if COLLECT_DAEMON
                        case 'P':
                                global_option_set ("PIDFile", optarg);
@@ -395,6 +447,9 @@ int main (int argc, char **argv)
        if (init_global_variables () != 0)
                return (1);
 
+       if (test_config)
+               return (0);
+
 #if COLLECT_DAEMON
        /*
         * fork off child