+static int
+parseprop(nvlist_t *props)
+{
+ char *propname = optarg;
+ char *propval, *strval;
+
+ if ((propval = strchr(propname, '=')) == NULL) {
+ (void) fprintf(stderr, gettext("missing "
+ "'=' for -o option\n"));
+ return (-1);
+ }
+ *propval = '\0';
+ propval++;
+ if (nvlist_lookup_string(props, propname, &strval) == 0) {
+ (void) fprintf(stderr, gettext("property '%s' "
+ "specified multiple times\n"), propname);
+ return (-1);
+ }
+ if (nvlist_add_string(props, propname, propval) != 0) {
+ (void) fprintf(stderr, gettext("internal "
+ "error: out of memory\n"));
+ return (-1);
+ }
+ return (0);
+
+}
+