From: Mike Gilbert <floppym@gentoo.org>
Date: Thu, 13 Jan 2022 21:47:18 +0000 (-0500)
Subject: Avoid updating timestamps when the destination is stdout
X-Git-Tag: v1.5.2^2~2^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=57a86d9ec636c75f17a3005962ff178545e404f5;p=thirdparty%2Fzstd.git

Avoid updating timestamps when the destination is stdout

Fixes: 9cd6c1ff4d56fc74a2cbdfd9bcc82a64e0fe4bb7
Fixes: https://github.com/facebook/zstd/issues/2997
---

diff --git a/programs/fileio.c b/programs/fileio.c
index 89eecb9e7..5338fa629 100644
--- a/programs/fileio.c
+++ b/programs/fileio.c
@@ -1679,6 +1679,7 @@ static int FIO_compressFilename_dstFile(FIO_ctx_t* const fCtx,
     if (ress.dstFile == NULL) {
         int dstFilePermissions = DEFAULT_FILE_PERMISSIONS;
         if ( strcmp (srcFileName, stdinmark)
+          && strcmp (dstFileName, stdoutmark)
           && UTIL_stat(srcFileName, &statbuf)
           && UTIL_isRegularFileStat(&statbuf) ) {
             dstFilePermissions = statbuf.st_mode;
@@ -2634,6 +2635,7 @@ static int FIO_decompressDstFile(FIO_ctx_t* const fCtx,
     if ((ress.dstFile == NULL) && (prefs->testMode==0)) {
         int dstFilePermissions = DEFAULT_FILE_PERMISSIONS;
         if ( strcmp(srcFileName, stdinmark)   /* special case : don't transfer permissions from stdin */
+          && strcmp(dstFileName, stdoutmark)
           && UTIL_stat(srcFileName, &statbuf)
           && UTIL_isRegularFileStat(&statbuf) ) {
             dstFilePermissions = statbuf.st_mode;