Prevent user from setting wwwroot to NULL (#47)

emikulic · Mar 5, 2024 · 2417ddf · 2417ddf
1 parent 2055a5d
commit 2417ddf
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/darkhttpd.c b/darkhttpd.c
@@ -1071,7 +1071,9 @@ static void parse_commandline(const int argc, char *argv[]) {
     wwwroot = xstrdup(argv[1]);
     /* Strip ending slash. */
     len = strlen(wwwroot);
-    if (len > 0)
+    if (len == 0)
+        errx(1, "/path/to/wwwroot cannot be empty");
+    if (len > 1)
         if (wwwroot[len - 1] == '/')
             wwwroot[len - 1] = '\0';