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117 lines
3.5 KiB
C
117 lines
3.5 KiB
C
/* Copyright (C) 2000 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#define USES_TYPES /* sys/types is included */
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#include "mysys_priv.h"
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#include <sys/stat.h>
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#include <m_string.h>
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#if defined(HAVE_SYS_UTIME_H)
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#include <sys/utime.h>
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#elif defined(HAVE_UTIME_H)
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#include <utime.h>
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#elif !defined(HPUX10)
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#include <time.h>
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struct utimbuf {
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time_t actime;
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time_t modtime;
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};
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#endif
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/*
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int my_copy(const char *from, const char *to, myf MyFlags)
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NOTES
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Ordinary ownership and accesstimes are copied from 'from-file'
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If MyFlags & MY_HOLD_ORIGINAL_MODES is set and to-file exists then
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the modes of to-file isn't changed
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If MyFlags & MY_DONT_OVERWRITE_FILE is set, we will give an error
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if the file existed.
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WARNING
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Don't set MY_FNABP or MY_NABP bits on when calling this function !
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RETURN
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0 ok
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# Error
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*/
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int my_copy(const char *from, const char *to, myf MyFlags)
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{
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uint Count;
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int new_file_stat, create_flag;
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File from_file,to_file;
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char buff[IO_SIZE];
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struct stat stat_buff,new_stat_buff;
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DBUG_ENTER("my_copy");
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DBUG_PRINT("my",("from %s to %s MyFlags %d", from, to, MyFlags));
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from_file=to_file= -1;
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new_file_stat=0;
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if (MyFlags & MY_HOLD_ORIGINAL_MODES) /* Copy stat if possible */
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new_file_stat=stat((char*) to, &new_stat_buff);
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if ((from_file=my_open(from,O_RDONLY | O_SHARE,MyFlags)) >= 0)
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{
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if (stat(from,&stat_buff))
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{
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my_errno=errno;
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goto err;
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}
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if (MyFlags & MY_HOLD_ORIGINAL_MODES && !new_file_stat)
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stat_buff=new_stat_buff;
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create_flag= (MyFlags & MY_DONT_OVERWRITE_FILE) ? O_EXCL : O_TRUNC;
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if ((to_file= my_create(to,(int) stat_buff.st_mode,
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O_WRONLY | create_flag | O_BINARY | O_SHARE,
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MyFlags)) < 0)
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goto err;
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while ((Count=my_read(from_file,buff,IO_SIZE,MyFlags)) != 0)
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if (Count == (uint) -1 ||
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my_write(to_file,buff,Count,MYF(MyFlags | MY_NABP)))
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goto err;
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if (my_close(from_file,MyFlags) | my_close(to_file,MyFlags))
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DBUG_RETURN(-1); /* Error on close */
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/* Copy modes if possible */
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if (MyFlags & MY_HOLD_ORIGINAL_MODES && new_file_stat)
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DBUG_RETURN(0); /* File copyed but not stat */
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VOID(chmod(to, stat_buff.st_mode & 07777)); /* Copy modes */
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#if !defined(MSDOS) && !defined(__WIN__) && !defined(__EMX__) && !defined(OS2) && !defined(__NETWARE__)
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VOID(chown(to, stat_buff.st_uid,stat_buff.st_gid)); /* Copy ownership */
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#endif
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#if !defined(VMS) && !defined(__ZTC__)
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if (MyFlags & MY_COPYTIME)
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{
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struct utimbuf timep;
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timep.actime = stat_buff.st_atime;
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timep.modtime = stat_buff.st_mtime;
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VOID(utime((char*) to, &timep)); /* last accessed and modified times */
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}
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#endif
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DBUG_RETURN(0);
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}
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err:
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if (from_file >= 0) VOID(my_close(from_file,MyFlags));
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if (to_file >= 0) VOID(my_close(to_file,MyFlags));
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DBUG_RETURN(-1);
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} /* my_copy */
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