From d2013a6337972c62a71f01324e87af0e55579245 Mon Sep 17 00:00:00 2001
From: Aaron Burrow <burrows@charstarstar.com>
Date: Mon, 16 Jul 2018 22:46:09 +0200
Subject: [PATCH] Fix one byte NULL stack overflow

Don't append a forward slash if the length of a folder is PATH_MAX-1. This can
happen if HEADER_MAX is larger than PATH_MAX or if the `-m` option is used to
increase the path length.
---
 LICENSE | 1 +
 http.c  | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/LICENSE b/LICENSE
index 3e402a5..fc7b4e0 100644
--- a/LICENSE
+++ b/LICENSE
@@ -9,6 +9,7 @@ Copyright 2017-2018 Hiltjo Posthuma <hiltjo@codemadness.org>
 Copyright 2017-2018 Quentin Rameau <quinq@fifth.space>
 Copyright 2018 Josuah Demangeon <mail@josuah.net>
 Copyright 2018 Dominik Schmidt <domischmidt@swissonline.ch>
+Copyright 2018 Aaron Burrow <burrows@charstarstar.com>
 
 Permission to use, copy, modify, and/or distribute this software for any
 purpose with or without fee is hereby granted, provided that the above
diff --git a/http.c b/http.c
index f0b84b1..7a801a5 100644
--- a/http.c
+++ b/http.c
@@ -430,7 +430,7 @@ http_send_response(int fd, struct request *r)
 	if (S_ISDIR(st.st_mode)) {
 		/* add / to target if not present */
 		len = strlen(realtarget);
-		if (len == PATH_MAX - 2) {
+		if (len >= PATH_MAX - 2) {
 			return http_send_status(fd, S_REQUEST_TOO_LARGE);
 		}
 		if (len && realtarget[len - 1] != '/') {