vsftpd/0024-Introduce-new-return-value-450.patch

From 1d5cdf309387ff92988ab17d746f015d833a4b92 Mon Sep 17 00:00:00 2001
From: Martin Sehnoutka <msehnout@redhat.com>
Date: Thu, 17 Nov 2016 11:08:52 +0100
Subject: [PATCH 24/33] Introduce new return value 450:

 *450 Requested file action not taken.
      File unavailable (e.g., file busy).
---
 ftpcodes.h  | 1 +
 postlogin.c | 9 ++++++++-
 sysutil.c   | 3 +++
 sysutil.h   | 3 ++-
 4 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/ftpcodes.h b/ftpcodes.h
index 93290c0..81e25c5 100644
--- a/ftpcodes.h
+++ b/ftpcodes.h
@@ -52,6 +52,7 @@
 #define FTP_TLS_FAIL          421
 #define FTP_BADSENDCONN       425
 #define FTP_BADSENDNET        426
+#define FTP_FILETMPFAIL       450
 #define FTP_BADSENDFILE       451
 
 #define FTP_BADCMD            500
diff --git a/postlogin.c b/postlogin.c
index bf12970..29958c0 100644
--- a/postlogin.c
+++ b/postlogin.c
@@ -679,7 +679,14 @@ handle_retr(struct vsf_session* p_sess, int is_http)
   opened_file = str_open(&p_sess->ftp_arg_str, kVSFSysStrOpenReadOnly);
   if (vsf_sysutil_retval_is_error(opened_file))
   {
-    vsf_cmdio_write(p_sess, FTP_FILEFAIL, "Failed to open file.");
+    if (kVSFSysUtilErrAGAIN == vsf_sysutil_get_error())
+    {
+      vsf_cmdio_write(p_sess, FTP_FILETMPFAIL, "Temporarily failed to open file");
+    }
+    else
+    {
+      vsf_cmdio_write(p_sess, FTP_FILEFAIL, "Failed to open file.");
+    }
     return;
   }
   /* Lock file if required */
diff --git a/sysutil.c b/sysutil.c
index 9881a66..6d7cb3f 100644
--- a/sysutil.c
+++ b/sysutil.c
@@ -1632,6 +1632,9 @@ vsf_sysutil_get_error(void)
     case ENOENT:
       retval = kVSFSysUtilErrNOENT;
       break;
+    case EAGAIN:
+      retval = kVSFSysUtilErrAGAIN;
+      break;
     default:
       break;
   }
diff --git a/sysutil.h b/sysutil.h
index 79b5514..c145bdf 100644
--- a/sysutil.h
+++ b/sysutil.h
@@ -18,7 +18,8 @@ enum EVSFSysUtilError
   kVSFSysUtilErrINVAL,
   kVSFSysUtilErrOPNOTSUPP,
   kVSFSysUtilErrACCES,
-  kVSFSysUtilErrNOENT
+  kVSFSysUtilErrNOENT,
+  kVSFSysUtilErrAGAIN
 };
 enum EVSFSysUtilError vsf_sysutil_get_error(void);
 
-- 
2.7.4