1 files changed, 1 insertions, 1 deletions
diff --git a/lib/String.cc b/lib/String.cc
index d64f065..d587b75 100644
--- a/lib/String.cc
+++ b/lib/String.cc
@@ -51,7 +51,7 @@ const char * String::set(char * s, ...) {
     va_list ap;
 
     va_start(ap, s);
-    vsprintf(t, s, ap);
+    vsnprintf(t, BUFSIZ, s, ap);
     free(str);
     str = ::strdup(t);
     va_end(ap);