fix confstr return value

per the specification, the terminating null byte is counted.

diff --git a/src/conf/confstr.c b/src/conf/confstr.c
index 4332f72..6e9c23a 100644 (file)
--- a/src/conf/confstr.c
+++ b/src/conf/confstr.c
@@ -13,5 +13,5 @@ size_t confstr(int name, char *buf, size_t len)
        }
        // snprintf is overkill but avoid wasting code size to implement
        // this completely useless function and its truncation semantics
-       return snprintf(buf, len, "%s", s);
+       return snprintf(buf, len, "%s", s) + 1;
 }