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-rw-r--r--FICS/variable.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/FICS/variable.c b/FICS/variable.c
index 532243c..8837c96 100644
--- a/FICS/variable.c
+++ b/FICS/variable.c
@@ -412,6 +412,10 @@ set_interface(int p, char *var, char *val)
if (val == NULL || strcmp(val, "") == 0)
return VAR_BADVAL;
+ else if (!printablestring(val)) {
+ pprintf(p, "%s: val not printable\n", __func__);
+ return VAR_BADVAL;
+ }
cp = &(parray[p].interface[0]);
size = ARRAY_SIZE(parray[p].interface);