diff options
Diffstat (limited to 'mysys/my_copy.c')
| -rw-r--r-- | mysys/my_copy.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/mysys/my_copy.c b/mysys/my_copy.c new file mode 100644 index 00000000000..bfd7e957585 --- /dev/null +++ b/mysys/my_copy.c @@ -0,0 +1,103 @@ +/* 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 <sys/stat.h> +#include <m_string.h> +#if defined(HAVE_SYS_UTIME_H) +#include <sys/utime.h> +#elif defined(HAVE_UTIME_H) +#include <utime.h> +#elif !defined(HPUX) +#include <time.h> +struct utimbuf { + time_t actime; + time_t modtime; +}; +#endif + + + /* + Ordinary ownership and accesstimes are copied from 'from-file' + if MyFlags & MY_HOLD_ORIGINAL_MODES is set and to-file exists then + the modes of to-file isn't changed + Dont set MY_FNABP or MY_NABP bits on when calling this function ! + */ + +int my_copy(const char *from, const char *to, myf MyFlags) +{ + uint Count; + int new_file_stat; + File from_file,to_file; + char buff[IO_SIZE]; + struct stat stat_buff,new_stat_buff; + DBUG_ENTER("my_copy"); + DBUG_PRINT("my",("from %s to %s MyFlags %d", from, to, MyFlags)); + + from_file=to_file= -1; + new_file_stat=0; + if (MyFlags & MY_HOLD_ORIGINAL_MODES) /* Copy stat if possible */ + new_file_stat=stat((char*) to, &new_stat_buff); + + if ((from_file=my_open(from,O_RDONLY,MyFlags)) >= 0) + { + if (stat(from,&stat_buff)) + { + my_errno=errno; + goto err; + } + if (MyFlags & MY_HOLD_ORIGINAL_MODES && !new_file_stat) + stat_buff=new_stat_buff; + if ((to_file= my_create(to,(int) stat_buff.st_mode, + O_WRONLY | O_TRUNC | O_BINARY, + MyFlags)) < 0) + goto err; + + while ((Count=my_read(from_file,buff,IO_SIZE,MyFlags)) != 0) + if (Count == (uint) -1 || + my_write(to_file,buff,Count,MYF(MyFlags | MY_NABP))) + goto err; + + if (my_close(from_file,MyFlags) | my_close(to_file,MyFlags)) + DBUG_RETURN(-1); /* Error on close */ + + /* Copy modes if possible */ + + if (MyFlags & MY_HOLD_ORIGINAL_MODES && new_file_stat) + DBUG_RETURN(0); /* File copyed but not stat */ + VOID(chmod(to, stat_buff.st_mode & 07777)); /* Copy modes */ +#if !defined(MSDOS) && !defined(__WIN__) && !defined(__EMX__) + VOID(chown(to, stat_buff.st_uid,stat_buff.st_gid)); /* Copy ownership */ +#endif +#if !defined(VMS) && !defined(__ZTC__) + if (MyFlags & MY_COPYTIME) + { + struct utimbuf timep; + timep.actime = stat_buff.st_atime; + timep.modtime = stat_buff.st_mtime; + VOID(utime((char*) to, &timep)); /* last accessed and modified times */ + } +#endif + DBUG_RETURN(0); + } + +err: + if (from_file >= 0) VOID(my_close(from_file,MyFlags)); + if (to_file >= 0) VOID(my_close(to_file,MyFlags)); + DBUG_RETURN(-1); +} /* my_copy */ |