From: Nick Terrell <terrelln@fb.com>
Date: Tue, 18 Dec 2018 23:40:27 +0000 (-0800)
Subject: Also compare device thanks to @felixhandte
X-Git-Tag: v1.3.8~20^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7abd6acebf8f8edbebb7572c34c2d1962b56f92f;p=thirdparty%2Fzstd.git

Also compare device thanks to @felixhandte
---

diff --git a/programs/fileio.c b/programs/fileio.c
index c415ea67e..9ba8c6370 100644
--- a/programs/fileio.c
+++ b/programs/fileio.c
@@ -420,7 +420,7 @@ static FILE* FIO_openDstFile(const char* srcFileName, const char* dstFileName)
         stat_t srcStat;
         stat_t dstStat;
         if (UTIL_getFileStat(srcFileName, &srcStat) && UTIL_getFileStat(dstFileName, &dstStat)) {
-            if (srcStat.st_ino == dstStat.st_ino) {
+            if (srcStat.st_dev == dstStat.st_dev && srcStat.st_ino == dstStat.st_ino) {
                 DISPLAYLEVEL(1, "zstd: Refusing to open a output file which will overwrite the input file \n");
                 return NULL;
             }