Author: oshogbo
Date: Sat Jan 27 12:28:52 2018
New Revision: 328472
URL: https://svnweb.freebsd.org/changeset/base/328472

Log:
  Don't truncate name of glabel.
  If it's to long just report that.
  
  Reviewed by:  trasz@
  Differential Revision:        https://reviews.freebsd.org/D13746

Modified:
  head/sys/geom/label/g_label.c

Modified: head/sys/geom/label/g_label.c
==============================================================================
--- head/sys/geom/label/g_label.c       Sat Jan 27 11:54:51 2018        
(r328471)
+++ head/sys/geom/label/g_label.c       Sat Jan 27 12:28:52 2018        
(r328472)
@@ -200,6 +200,7 @@ g_label_create(struct gctl_req *req, struct g_class *m
        struct g_provider *pp2;
        struct g_consumer *cp;
        char name[64];
+       int n;
 
        g_topology_assert();
 
@@ -213,7 +214,12 @@ g_label_create(struct gctl_req *req, struct g_class *m
        }
        gp = NULL;
        cp = NULL;
-       snprintf(name, sizeof(name), "%s/%s", dir, label);
+       n = snprintf(name, sizeof(name), "%s/%s", dir, label);
+       if (n >= sizeof(name)) {
+               if (req != NULL)
+                       gctl_error(req, "Label name %s is too long.", label);
+               return (NULL);
+       }
        LIST_FOREACH(gp, &mp->geom, geom) {
                pp2 = LIST_FIRST(&gp->provider);
                if (pp2 == NULL)
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