drbd plugin: improve header lines identification

Recent DRBD versions display more detailed build information in
`/proc/drbd`, which caused the header identification to fail.

Comparing the first part of each line against all known header prefixes
will hopefully make this more robust.

Fixes #1514

Signed-off-by: Florian Forster <octo@collectd.org>

diff --git a/src/drbd.c b/src/drbd.c
index cc306dc..d46bb02 100644 (file)
--- a/src/drbd.c
+++ b/src/drbd.c
@@ -142,8 +142,12 @@ static int drbd_read (void)
                                fields, STATIC_ARRAY_SIZE (fields));
 
                /* ignore headers (first two iterations) */
-               if (fields_num < 4)
+               if ((strcmp(fields[0], "version:") == 0) ||
+                               (strcmp(fields[0], "srcversion:") == 0) ||
+                               (strcmp(fields[0], "GIT-hash:") == 0))
+               {
                        continue;
+               }
 
                if (isdigit(fields[0][0]))
                {