my_redel.c
上传用户:tsgydb
上传日期:2007-04-14
资源大小:10674k
文件大小:3k
- /* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
-
- This library 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with this library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- MA 02111-1307, USA */
- #define USES_TYPES /* sys/types is included */
- #include "mysys_priv.h"
- #include <my_dir.h>
- #include <m_string.h>
- #include "mysys_err.h"
- #if defined(HAVE_SYS_UTIME_H)
- #include <sys/utime.h>
- #elif defined(HAVE_UTIME_H)
- #include <utime.h>
- #elif !defined(HPUX)
- 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 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
- */
- #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 (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);
- strmov(strend(ext),REDEL_EXT);
- if (my_rename(org_name, fn_format(name_buff, org_name, "", ext, 2),
- 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 */
- /* Return -1 if can't get stat, 1 if wrong type of file */
- int my_copystat(const char *from, const char *to, int MyFlags)
- {
- struct stat statbuf;
- if (stat((char*) from, &statbuf))
- {
- my_errno=errno;
- if (MyFlags & (MY_FAE+MY_WME))
- my_error(EE_STAT, MYF(ME_BELL+ME_WAITTANG),from,errno);
- return -1; /* Can't get stat on input file */
- }
- if ((statbuf.st_mode & S_IFMT) != S_IFREG)
- return 1;
- VOID(chmod(to, statbuf.st_mode & 07777)); /* Copy modes */
- #if !defined(MSDOS) && !defined(__WIN__) && !defined(__EMX__)
- if (statbuf.st_nlink > 1 && MyFlags & MY_LINK_WARNING)
- {
- if (MyFlags & MY_LINK_WARNING)
- my_error(EE_LINK_WARNING,MYF(ME_BELL+ME_WAITTANG),from,statbuf.st_nlink);
- }
- VOID(chown(to, statbuf.st_uid, statbuf.st_gid)); /* Copy ownership */
- #endif /* MSDOS */
- #ifndef VMS
- #ifndef __ZTC__
- 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 */
- }
- #else
- if (MyFlags & MY_COPYTIME)
- {
- time_t time[2];
- time[0]= statbuf.st_atime;
- time[1]= statbuf.st_mtime;
- VOID(utime((char*) to, time));/* Update last accessed and modified times */
- }
- #endif
- #endif
- return 0;
- } /* my_copystat */