tools/rados: do not close stdout after 'export' to '-'

'export' sets file_fd to STDOUT_FILENO for '-', but cleanup guarded
close() on STDIN_FILENO (always true), closing stdout. Guard on
STDOUT_FILENO instead, matching the 'import' path.

Signed-off-by: Sun Yuechi <sunyuechi@iscas.ac.cn>

diff --git a/src/tools/rados/rados.cc b/src/tools/rados/rados.cc
index 81ef10f6fd8d6f3020d7e3e334125bbe553ee374..556d4d6d0f14d7daab66cb3bc208894c097cf57d 100644 (file)
--- a/src/tools/rados/rados.cc
+++ b/src/tools/rados/rados.cc
@@ -4091,7 +4091,7 @@ static int rados_tool_common(const std::map < std::string, std::string > &opts,
 
     ret = PoolDump(file_fd).dump(&io_ctx);
 
-    if (file_fd != STDIN_FILENO) {
+    if (file_fd != STDOUT_FILENO) {
       VOID_TEMP_FAILURE_RETRY(::close(file_fd));
     }