From: nineisk <is_kk@hotmail.com>
Date: Thu, 26 Jan 2017 02:30:12 +0000 (+0700)
Subject: Fix fopen() in “a” (append) mode
X-Git-Tag: v2.0-rc2~47^2~1
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=57af0d70d3b90b4a0a89f7d2b96ed53c1bb7bb03;p=esp-idf

Fix fopen() in “a” (append) mode

fopen() does not work when file is opened in “a” (append) mode
---

diff --git a/components/fatfs/src/vfs_fat.c b/components/fatfs/src/vfs_fat.c
index 4ef387b43b..73bed5eaa1 100644
--- a/components/fatfs/src/vfs_fat.c
+++ b/components/fatfs/src/vfs_fat.c
@@ -152,7 +152,7 @@ static int fat_mode_conv(int m)
     }
     if ((m & O_CREAT) && (m & O_EXCL)) {
         res |= FA_CREATE_NEW;
-    } else if (m & O_CREAT) {
+    } else if ((m & O_CREAT) && (m & O_TRUNC)) {
         res |= FA_CREATE_ALWAYS;
     } else if (m & O_APPEND) {
         res |= FA_OPEN_ALWAYS;