From 354bb40e75d94466e91fe6960523612c9d17ccfb Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Thu, 2 Nov 2017 23:11:29 +0300
Subject: Add implementation

---
 mysql/mysys/my_redel.c | 132 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 132 insertions(+)
 create mode 100644 mysql/mysys/my_redel.c

(limited to 'mysql/mysys/my_redel.c')

diff --git a/mysql/mysys/my_redel.c b/mysql/mysys/my_redel.c
new file mode 100644
index 0000000..43e7e73
--- /dev/null
+++ b/mysql/mysys/my_redel.c
@@ -0,0 +1,132 @@
+/* Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; version 2 of the License.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */
+
+#include "mysys_priv.h"
+#include "my_sys.h"
+#include <my_dir.h>
+#include <m_string.h>
+#include "mysys_err.h"
+#include "my_thread_local.h"
+
+#ifndef _WIN32
+#include <utime.h>
+#else
+#include <sys/utime.h>
+#endif
+
+	/*
+	  Rename with copy stat form old file
+	  Copy stats from old file to new file, deletes orginal and
+	  changes new file name to old file name
+
+	  if MY_REDEL_MAKE_COPY is given, then the orginal file
+	  is renamed to org_name-'current_time'.BAK
+
+          if MY_REDEL_NO_COPY_STAT is given, stats are not copied
+          from org_name to tmp_name.
+	*/
+
+#define REDEL_EXT ".BAK"
+
+int my_redel(const char *org_name, const char *tmp_name, myf MyFlags)
+{
+  int error=1;
+  DBUG_ENTER("my_redel");
+  DBUG_PRINT("my",("org_name: '%s' tmp_name: '%s'  MyFlags: %d",
+		   org_name,tmp_name,MyFlags));
+
+  if (!(MyFlags & MY_REDEL_NO_COPY_STAT))
+  {
+    if (my_copystat(org_name,tmp_name,MyFlags) < 0)
+      goto end;
+  }
+  if (MyFlags & MY_REDEL_MAKE_BACKUP)
+  {
+    char name_buff[FN_REFLEN+20];    
+    char ext[20];
+    ext[0]='-';
+    get_date(ext+1,2+4,(time_t) 0);
+    my_stpcpy(strend(ext),REDEL_EXT);
+    if (my_rename(org_name, fn_format(name_buff, org_name, "", ext, 2),
+		  MyFlags))
+      goto end;
+  }
+  else if (my_delete_allow_opened(org_name, MyFlags))
+      goto end;
+  if (my_rename(tmp_name,org_name,MyFlags))
+    goto end;
+
+  error=0;
+end:
+  DBUG_RETURN(error);
+} /* my_redel */
+
+
+	/* Copy stat from one file to another */
+	/* Return -1 if can't get stat, 1 if wrong type of file */
+
+int my_copystat(const char *from, const char *to, int MyFlags)
+{
+  MY_STAT statbuf;
+
+  if (my_stat(from, &statbuf, MyFlags) == NULL)
+    return -1;				/* Can't get stat on input file */
+
+  if ((statbuf.st_mode & S_IFMT) != S_IFREG)
+    return 1;
+
+  /* Copy modes */
+  if (chmod(to, statbuf.st_mode & 07777))
+  {
+    set_my_errno(errno);
+    if (MyFlags & (MY_FAE+MY_WME))
+    {
+      char errbuf[MYSYS_STRERROR_SIZE];
+      my_error(EE_CHANGE_PERMISSIONS, MYF(0), from,
+               errno, my_strerror(errbuf, sizeof(errbuf), errno));
+    }
+    return -1;
+  }
+
+#if !defined(_WIN32)
+  if (statbuf.st_nlink > 1 && MyFlags & MY_LINK_WARNING)
+  {
+    if (MyFlags & MY_LINK_WARNING)
+      my_error(EE_LINK_WARNING,MYF(0),from,statbuf.st_nlink);
+  }
+  /* Copy ownership */
+  if (chown(to, statbuf.st_uid, statbuf.st_gid))
+  {
+    set_my_errno(errno);
+    if (MyFlags & (MY_FAE+MY_WME))
+    {
+      char errbuf[MYSYS_STRERROR_SIZE];
+      my_error(EE_CHANGE_OWNERSHIP, MYF(0), from,
+               errno, my_strerror(errbuf, sizeof(errbuf), errno));
+    }
+    return -1;
+  }
+#endif /* !_WIN32 */
+
+  if (MyFlags & MY_COPYTIME)
+  {
+    struct utimbuf timep;
+    timep.actime  = statbuf.st_atime;
+    timep.modtime = statbuf.st_mtime;
+    (void) utime((char*) to, &timep);/* Update last accessed and modified times */
+  }
+
+  return 0;
+} /* my_copystat */
-- 
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