about: path_info might not be valid

1 files changed, 2 insertions, 1 deletions

diff --git a/cmd.c b/cmd.c
index 0375c5a..d280e95 100644
--- a/cmd.c
+++ b/cmd.c
@@ -39,9 +39,10 @@ static void atom_fn(void)
 static void about_fn(void)
 {
         if (ctx.repo) {
+                size_t path_info_len = ctx.env.path_info ? strlen(ctx.env.path_info) : 0;
                 if (!ctx.qry.path &&
                     ctx.qry.url[strlen(ctx.qry.url) - 1] != '/' &&
-                    ctx.env.path_info[strlen(ctx.env.path_info) - 1] != '/') {
+                    (!path_info_len || ctx.env.path_info[path_info_len - 1] != '/')) {
                         char *currenturl = cgit_currenturl();
                         char *redirect = fmtalloc("%s/", currenturl);
                         cgit_redirect(redirect, true);