write_tsdb: enable TCP keepalive on network socket

[collectd.git] / src / uuid.c

diff --git a/src/uuid.c b/src/uuid.c
index 446969a..8976626 100644 (file)
--- a/src/uuid.c
+++ b/src/uuid.c
@@ -1,6 +1,7 @@
 /**
  * collectd - src/uuid.c
  * Copyright (C) 2007  Red Hat Inc.
+ * Copyright (C) 2015  Ruben Kerkhof
  *
  * 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
@@ -29,6 +30,10 @@
 #include "configfile.h"
 #include "plugin.h"
 
+#if HAVE_SYS_SYSCTL_H
+#include <sys/sysctl.h>
+#endif
+
 #if HAVE_LIBHAL_H
 #include <libhal.h>
 #endif
@@ -109,6 +114,33 @@ uuid_get_from_dmidecode(void)
     return (uuid);
 }
 
+#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__NetBSD__)
+static char *
+uuid_get_from_sysctlbyname(const char *name)
+{
+    char uuid[UUID_PRINTABLE_NORMAL_LENGTH + 1];
+    size_t len = sizeof (uuid);
+    if (sysctlbyname(name, &uuid, &len, NULL, 0) == -1)
+        return NULL;
+    return (strdup (uuid));
+}
+#elif defined(__OpenBSD__)
+static char *
+uuid_get_from_sysctl(void)
+{
+    char uuid[UUID_PRINTABLE_NORMAL_LENGTH + 1];
+    size_t len = sizeof (uuid);
+    int mib[2];
+
+    mib[0] = CTL_HW;
+    mib[1] = HW_UUID;
+
+    if (sysctl(mib, 2, uuid, &len, NULL, 0) == -1)
+        return NULL;
+    return (strdup (uuid));
+}
+#endif
+
 #if HAVE_LIBHAL_H
 
 #define UUID_PATH "/org/freedesktop/Hal/devices/computer"
@@ -192,17 +224,35 @@ uuid_get_local(void)
     if ((uuid = uuid_get_from_file(uuidfile ? uuidfile : "/etc/uuid")) != NULL)
         return (uuid);
 
+#if defined(__APPLE__)
+    if ((uuid = uuid_get_from_sysctlbyname("kern.uuid")) != NULL)
+        return (uuid);
+#elif defined(__FreeBSD__)
+    if ((uuid = uuid_get_from_sysctlbyname("kern.hostuuid")) != NULL)
+        return (uuid);
+#elif defined(__NetBSD__)
+    if ((uuid = uuid_get_from_sysctlbyname("machdep.dmi.system-uuid")) != NULL)
+        return (uuid);
+#elif defined(__OpenBSD__)
+    if ((uuid = uuid_get_from_sysctl()) != NULL)
+        return (uuid);
+#elif defined(__linux__)
+    if ((uuid = uuid_get_from_file("/sys/class/dmi/id/product_uuid")) != NULL)
+        return (uuid);
+#endif
+
 #if HAVE_LIBHAL_H
-    if ((uuid = uuid_get_from_hal()) != NULL) {
-        return uuid;
-    }
+    if ((uuid = uuid_get_from_hal()) != NULL)
+        return (uuid);
 #endif
 
     if ((uuid = uuid_get_from_dmidecode()) != NULL)
         return (uuid);
 
+#if defined(__linux__)
     if ((uuid = uuid_get_from_file("/sys/hypervisor/uuid")) != NULL)
         return (uuid);
+#endif
 
     return (NULL);
 }