X-Git-Url: https://git.octo.it/?p=collectd.git;a=blobdiff_plain;f=src%2Fdaemon%2Fcollectd.c;h=9ec09347267f474c846d4807ceb065f9800ce493;hp=5dfe7c34bcb64ca4e60ea3639d1c7b8712366183;hb=1159cb5d383c55a80a0db100b8f7aadcf44740a5;hpb=386ecab44c09f459ca60250ce6d7f296301897bd

diff --git a/src/daemon/collectd.c b/src/daemon/collectd.c
index 5dfe7c34..9ec09347 100644
--- a/src/daemon/collectd.c
+++ b/src/daemon/collectd.c
@@ -76,37 +76,41 @@ static void sig_usr1_handler(int __attribute__((unused)) signal) {
 }
 
 static int init_hostname(void) {
-  const char *str;
-
-  struct addrinfo *ai_list;
-  int status;
-
-  str = global_option_get("Hostname");
+  const char *str = global_option_get("Hostname");
   if ((str != NULL) && (str[0] != 0)) {
-    sstrncpy(hostname_g, str, hostname_g_size);
+    hostname_set(str);
     return 0;
   }
 
-  if (gethostname(hostname_g, hostname_g_size) != 0) {
+  long hostname_len = sysconf(_SC_HOST_NAME_MAX);
+  if (hostname_len == -1) {
+    hostname_len = NI_MAXHOST;
+  }
+  char hostname[hostname_len];
+
+  if (gethostname(hostname, hostname_len) != 0) {
     fprintf(stderr, "`gethostname' failed and no "
                     "hostname was configured.\n");
     return -1;
   }
 
+  hostname_set(hostname);
+
   str = global_option_get("FQDNLookup");
   if (IS_FALSE(str))
     return 0;
 
+  struct addrinfo *ai_list;
   struct addrinfo ai_hints = {.ai_flags = AI_CANONNAME};
 
-  status = getaddrinfo(hostname_g, NULL, &ai_hints, &ai_list);
+  int status = getaddrinfo(hostname, NULL, &ai_hints, &ai_list);
   if (status != 0) {
     ERROR("Looking up \"%s\" failed. You have set the "
           "\"FQDNLookup\" option, but I cannot resolve "
           "my hostname to a fully qualified domain "
           "name. Please fix the network "
           "configuration.",
-          hostname_g);
+          hostname);
     return -1;
   }
 
@@ -115,7 +119,7 @@ static int init_hostname(void) {
     if (ai_ptr->ai_canonname == NULL)
       continue;
 
-    sstrncpy(hostname_g, ai_ptr->ai_canonname, hostname_g_size);
+    hostname_set(ai_ptr->ai_canonname);
     break;
   }