From 58195fbc1eae4f3890df4bca4ba52d75d6e37189 Mon Sep 17 00:00:00 2001
From: Andy Green <andy@warmcat.com>
Date: Sat, 19 Aug 2017 12:42:21 +0800
Subject: [PATCH] esp-idf v3: account for optional SHA256 when walking segments

---
 lib/lws-plat-esp32.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/lws-plat-esp32.c b/lib/lws-plat-esp32.c
index d875e085..48688e71 100644
--- a/lib/lws-plat-esp32.c
+++ b/lib/lws-plat-esp32.c
@@ -1613,7 +1613,12 @@ lws_esp32_get_image_info(const esp_partition_t *part, struct lws_esp32_image *i,
 	}
 	hdr += (~hdr & 15) + 1;
 
-	i->romfs = hdr + 4;
+	if (eih.hash_appended)
+		hdr += 0x20;
+
+//	lwsl_notice("romfs estimated at 0x%x\n", hdr);
+
+	i->romfs = hdr + 0x4;
 	spi_flash_read(hdr, &i->romfs_len, sizeof(i->romfs_len));
 	i->json = i->romfs + i->romfs_len + 4;
 	spi_flash_read(i->json - 4, &i->json_len, sizeof(i->json_len));