FIXED: Prevent pointer overflow

diff --git a/Sources/libMultiMarkdown/transclude.c b/Sources/libMultiMarkdown/transclude.c
index c828e470916f15234886fa94c491013061530106..3321a7a3eaa79bc795f17f3cf9ae3646e0421b28 100644 (file)
--- a/Sources/libMultiMarkdown/transclude.c
+++ b/Sources/libMultiMarkdown/transclude.c
@@ -144,7 +144,7 @@ void add_trailing_sep(DString * path) {
        #endif
 
        // Ensure that folder ends in separator
-       if (!is_separator(path->str[path->currentStringLength - 1])) {
+       if ((path->currentStringLength == 0) || (!is_separator(path->str[path->currentStringLength - 1]))) {
                d_string_append_c(path, sep);
        }
 }