/* Copyright (c) 2000, 2010, Oracle and/or its affiliates
Copyright ( c ) 2009 , 2016 , MariaDB
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 02110-1335 USA */
#include "mysys_priv.h"
#include "mysys_err.h"
#include <my_dir.h>
#include <m_string.h>
#include "mysys_err.h"
#if defined (HAVE_UTIME_H)
#include <utime.h>
#elif defined (HAVE_SYS_UTIME_H)
#include <sys/utime.h>
#elif !defined (HPUX10)
struct utimbuf {
time_t actime;
time_t modtime;
};
#endif
/*
Rename with copy stat form old file
Copy stats from old file to new file , deletes original and
changes new file name to old file name
if MY_REDEL_MAKE_COPY is given , then the original file
is renamed to org_name - ' current_time ' . BAK
*/
#define REDEL_EXT ".BAK"
int my_redel(const char *org_name, const char *tmp_name,
time_t backup_time_stamp, myf MyFlags)
{
int error=1 ;
DBUG_ENTER("my_redel" );
DBUG_PRINT("my" ,("org_name: '%s' tmp_name: '%s' MyFlags: %lu" ,
org_name,tmp_name,MyFlags));
if (!my_disable_copystat_in_redel &&
my_copystat(org_name,tmp_name,MyFlags) < 0 )
goto end;
if (MyFlags & MY_REDEL_MAKE_BACKUP)
{
char name_buff[FN_REFLEN + MY_BACKUP_NAME_EXTRA_LENGTH];
my_create_backup_name(name_buff, org_name, backup_time_stamp);
if (my_rename(org_name, name_buff, MyFlags))
goto end;
}
else if (my_delete(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
@ fn my_copystat ( )
@ param from Copy stat from this file
@ param to Copy stat to this file
@ param MyFlags Flags :
MY_WME Give error if something goes wrong
MY_FAE Abort operation if something goes wrong
If MY_FAE is not given , we don ' t return - 1 for
errors from chown ( which normally require root
privilege )
@ return 0 ok
- 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 ))
{
my_errno= errno;
if (MyFlags & (MY_FAE+MY_WME))
my_error(EE_CHANGE_PERMISSIONS, MYF(ME_BELL), from, 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(ME_BELL),from,statbuf.st_nlink);
}
/* Copy ownership */
if (chown(to, statbuf.st_uid, statbuf.st_gid))
{
my_errno= errno;
if (MyFlags & MY_WME)
my_error(EE_CHANGE_OWNERSHIP, MYF(ME_BELL), from, errno);
if (MyFlags & MY_FAE)
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 */
/**
Create a backup file name .
@ fn my_create_backup_name ( )
@ param to Store new file name here
@ param from Original name
@ info
The backup name is made by adding - YYMMDDHHMMSS . BAK to the file name
*/
void my_create_backup_name(char *to, const char *from, time_t backup_start)
{
char ext[MY_BACKUP_NAME_EXTRA_LENGTH+1 ];
ext[0 ]='-' ;
get_date(ext+1 , sizeof (ext) - 1 , GETDATE_SHORT_DATE | GETDATE_HHMMSSTIME,
backup_start);
strmov(strend(ext),REDEL_EXT);
strmov(strmov(to, from), ext);
}
Messung V0.5 in Prozent C=94 H=85 G=89
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