integers can be negative ... fixed the test for this in rrd_update -- rians cc usu edu

git-svn-id: svn://svn.oetiker.ch/rrdtool/branches/1.2@1013 a5681a0c-68f1-0310-ab6d-d61299d08faa

diff --git a/program/src/rrd_update.c b/program/src/rrd_update.c
index cca6e52e331581ded088c5e24589970411ac999c..0143e9e68db29c9e5ccbf85812f96044ff89770d 100644 (file)
--- a/program/src/rrd_update.c
+++ b/program/src/rrd_update.c
@@ -615,7 +615,7 @@ _rrd_update(char *filename, char *tmplt, int argc, char **argv,
                case DST_DERIVE:
                    if(rrd.pdp_prep[i].last_ds[0] != 'U'){
                       for(ii=0;updvals[i+1][ii] != '\0';ii++){
-                            if(updvals[i+1][ii] < '0' || updvals[i+1][ii] > '9' || (ii==0 && updvals[i+1][ii] == '-')){
+                            if((updvals[i+1][ii] < '0' || updvals[i+1][ii] > '9') && (ii != 0 && updvals[i+1][ii] != '-')){
                                  rrd_set_error("not a simple integer: '%s'",updvals[i+1]);
                                  break;
                             }