X-Git-Url: https://git.octo.it/?p=collectd.git;a=blobdiff_plain;f=src%2Fzfs_arc.c;h=6c66fb1390d9afe8493aaa9fb992cabd7bf4ed2c;hp=5d37f9f1e0078ab73d3581138c55a1c18fc7be77;hb=7111bb6df7628edce3a8e538b386fbe27633a191;hpb=a44b08a5204c52e231d78a43a08a1aeab356c758

diff --git a/src/zfs_arc.c b/src/zfs_arc.c
index 5d37f9f1..6c66fb13 100644
--- a/src/zfs_arc.c
+++ b/src/zfs_arc.c
@@ -99,6 +99,11 @@ static void free_zfs_values(kstat_t *ksp) {
 }
 
 #elif defined(KERNEL_SOLARIS)
+
+#if HAVE_KSTAT_H
+#include <kstat.h>
+#endif
+
 extern kstat_ctl_t *kc;
 
 static long long get_zfs_value(kstat_t *ksp, char *name) {
@@ -227,6 +232,23 @@ static int za_read(void) {
     return -1;
   }
 
+  // Ignore the first two lines because they contain information about
+  // the rest of the file.
+  // See kstat_seq_show_headers module/spl/spl-kstat.c of the spl kernel
+  // module.
+  if (fgets(buffer, sizeof(buffer), fh) == NULL) {
+    ERROR("zfs_arc plugin: \"%s\" does not contain a single line.",
+          ZOL_ARCSTATS_FILE);
+    fclose(fh);
+    return (-1);
+  }
+  if (fgets(buffer, sizeof(buffer), fh) == NULL) {
+    ERROR("zfs_arc plugin: \"%s\" does not contain at least two lines.",
+          ZOL_ARCSTATS_FILE);
+    fclose(fh);
+    return (-1);
+  }
+
   while (fgets(buffer, sizeof(buffer), fh) != NULL) {
     char *fields[3];
     value_t v;