X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Futils_format_json.c;h=75a73aeea4a00e0465f27e8fa09134ca04bea921;hb=refs%2Fheads%2Fcollectd-4.9;hp=a91931601fe74ed63bea95c153ecc333de8c0814;hpb=179242223f25937fc528e89ef433a80d4d614611;p=collectd.git

diff --git a/src/utils_format_json.c b/src/utils_format_json.c
index a9193160..75a73aee 100644
--- a/src/utils_format_json.c
+++ b/src/utils_format_json.c
@@ -98,7 +98,12 @@ static int values_to_json (char *buffer, size_t buffer_size, /* {{{ */
       BUFFER_ADD (",");
 
     if (ds->ds[i].type == DS_TYPE_GAUGE)
-      BUFFER_ADD ("%g", vl->values[i].gauge);
+    {
+      if(isfinite (vl->values[i].gauge))
+        BUFFER_ADD ("%g", vl->values[i].gauge);
+      else
+        BUFFER_ADD ("null");
+    }
     else if (ds->ds[i].type == DS_TYPE_COUNTER)
       BUFFER_ADD ("%llu", vl->values[i].counter);
     else if (ds->ds[i].type == DS_TYPE_DERIVE)