464 lines
10 KiB
C
464 lines
10 KiB
C
/*
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* $Id$
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*
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Copyright (c) 2006-2014 Chung, Hyung-Hwan. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "fs-prv.h"
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#include <qse/cmn/mbwc.h>
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#include <qse/cmn/path.h>
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#include <qse/cmn/str.h>
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#include "../cmn/mem-prv.h"
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/*
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OVERWRITE AND FORCE handled by callback???
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QSE_FS_MOVE_UPDATE
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QSE_FS_MOVE_BACKUP_SIMPLE
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QSE_FS_MOVE_BACKUP_NUMBERED
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*/
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enum fop_flag_t
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{
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FOP_OLD_STAT = (1 << 0),
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FOP_NEW_STAT = (1 << 1),
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FOP_CROSS_DEV = (1 << 2)
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};
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struct fop_t
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{
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int flags;
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#if defined(_WIN32)
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/* nothing yet */
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#elif defined(__OS2__)
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qse_fs_char_t* old_path;
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qse_fs_char_t* new_path;
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#elif defined(__DOS__)
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qse_fs_char_t* old_path;
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qse_fs_char_t* new_path;
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#else
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qse_fs_char_t* old_path;
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qse_fs_char_t* new_path;
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qse_fs_char_t* new_path2;
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#if defined(HAVE_LSTAT)
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qse_lstat_t old_stat;
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qse_lstat_t new_stat;
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#else
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qse_stat_t old_stat;
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qse_stat_t new_stat;
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#endif
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#endif
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};
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typedef struct fop_t fop_t;
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int qse_fs_move (qse_fs_t* fs, const qse_char_t* oldpath, const qse_char_t* newpath)
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{
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#if defined(_WIN32)
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/* ------------------------------------------------------ */
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/* TODO: improve it... */
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/* TODO: support cross-volume move, move by copy/delete, etc ... */
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if (MoveFile (oldpath, newpath) == FALSE)
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{
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DWORD e = GetLastError();
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if (e == ERROR_ALREADY_EXISTS)
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{
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DeleteFile (newpath);
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if (MoveFile (oldpath, newpath) == FALSE)
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{
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fs->errnum = qse_fs_syserrtoerrnum (fs, GetLastError());
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return -1;
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}
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}
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else
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{
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fs->errnum = qse_fs_syserrtoerrnum (fs, e);
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return -1;
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}
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}
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return 0;
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/* ------------------------------------------------------ */
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#elif defined(__OS2__)
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/* ------------------------------------------------------ */
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/* TODO: improve it */
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int ret = 0;
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fop_t fop;
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QSE_MEMSET (&fop, 0, QSE_SIZEOF(fop));
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#if defined(QSE_CHAR_IS_MCHAR)
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fop.old_path = oldpath;
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fop.new_path = newpath;
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#else
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fop.old_path = qse_wcstombsdup (oldpath, QSE_NULL, fs->mmgr);
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fop.new_path = qse_wcstombsdup (newpath, QSE_NULL, fs->mmgr);
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if (fop.old_path == QSE_NULL || fop.old_path == QSE_NULL)
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{
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fs->errnum = QSE_FS_ENOMEM;
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ret = -1;
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}
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#endif
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if (ret == 0)
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{
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APIRET rc;
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rc = DosMove (fop.old_path, fop.new_path);
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if (rc == ERROR_ALREADY_EXISTS || rc == ERROR_ACCESS_DENIED)
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{
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DosDelete (fop.new_path);
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rc = DosMove (fop.old_path, fop.new_path);
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}
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if (rc != NO_ERROR)
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{
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fs->errnum = qse_fs_syserrtoerrnum (fs, rc);
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ret = -1;
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}
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}
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#if defined(QSE_CHAR_IS_MCHAR)
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/* nothing special */
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#else
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if (fop.old_path) QSE_MMGR_FREE (fs->mmgr, fop.old_path);
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if (fop.new_path) QSE_MMGR_FREE (fs->mmgr, fop.new_path);
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#endif
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return ret;
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/* ------------------------------------------------------ */
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#elif defined(__DOS__)
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/* ------------------------------------------------------ */
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/* TODO: improve it */
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fop_t fop;
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int ret = 0;
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QSE_MEMSET (&fop, 0, QSE_SIZEOF(fop));
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#if defined(QSE_CHAR_IS_MCHAR)
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fop.old_path = oldpath;
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fop.new_path = newpath;
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#else
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fop.old_path = qse_wcstombsdup (oldpath, QSE_NULL, fs->mmgr);
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fop.new_path = qse_wcstombsdup (newpath, QSE_NULL, fs->mmgr);
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if (fop.old_path == QSE_NULL || fop.old_path == QSE_NULL)
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{
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fs->errnum = QSE_FS_ENOMEM;
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ret = -1;
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}
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#endif
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if (ret == 0)
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{
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if (rename (fop.old_path, fop.new_path) <= -1)
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{
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/* FYI, rename() on watcom seems to set
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* errno to EACCES when the new path exists. */
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unlink (fop.new_path);
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if (rename (fop.old_path, fop.new_path) <= -1)
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{
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fs->errnum = qse_fs_syserrtoerrnum (fs, errno);
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ret = -1;
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}
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}
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}
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#if defined(QSE_CHAR_IS_MCHAR)
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/* nothing special */
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#else
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if (fop.old_path) QSE_MMGR_FREE (fs->mmgr, fop.old_path);
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if (fop.new_path) QSE_MMGR_FREE (fs->mmgr, fop.new_path);
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#endif
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return ret;
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/* ------------------------------------------------------ */
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#else
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/* ------------------------------------------------------ */
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fop_t fop;
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QSE_MEMSET (&fop, 0, QSE_SIZEOF(fop));
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#if defined(QSE_CHAR_IS_MCHAR)
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fop.old_path = oldpath;
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fop.new_path = newpath;
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#else
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fop.old_path = qse_wcstombsdup (oldpath, QSE_NULL, fs->mmgr);
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fop.new_path = qse_wcstombsdup (newpath, QSE_NULL, fs->mmgr);
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if (fop.old_path == QSE_NULL || fop.old_path == QSE_NULL)
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{
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fs->errnum = QSE_FS_ENOMEM;
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goto oops;
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}
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#endif
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/* TOOD: implement confirmatio
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if (overwrite_callback is set)
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{
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checkif the the mbsnewpat exists.
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if (it exists)
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{
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call fs->confirm_overwrite_callback (....)
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}
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}
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*/
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/* use lstat because we need to move the symbolic link
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* itself if the file is a symbolic link */
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#if defined(HAVE_LSTAT)
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if (QSE_LSTAT (fop.old_path, &fop.old_stat) == -1)
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#else
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if (QSE_STAT (fop.old_path, &fop.old_stat) == -1) /* is this ok to use stat? */
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#endif
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{
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fs->errnum = qse_fs_syserrtoerrnum (fs, errno);
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goto oops;
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}
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else fop.flags |= FOP_OLD_STAT;
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#if defined(HAVE_LSTAT)
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if (QSE_LSTAT (fop.new_path, &fop.new_stat) == -1)
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#else
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if (QSE_STAT (fop.new_path, &fop.new_stat) == -1)
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#endif
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{
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if (errno == ENOENT)
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{
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/* entry doesn't exist */
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}
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}
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else fop.flags |= FOP_NEW_STAT;
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if (fop.flags & FOP_NEW_STAT)
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{
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/* destination file exits */
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if (fop.old_stat.st_dev != fop.new_stat.st_dev)
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{
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/* cross-device */
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fop.flags |= FOP_CROSS_DEV;
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}
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else
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{
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if (fop.old_stat.st_ino == fop.new_stat.st_ino)
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{
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/* both source and destination are the same.
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* this operation is not allowed */
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fs->errnum = QSE_FS_EACCES;
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goto oops;
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}
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/* TODO: destination should point to an actual file or directory for this check to work */
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/* TOOD: ask to overwrite the source */
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if (S_ISDIR(fop.new_stat.st_mode))
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{
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/* the destination is a directory. move the source file
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* into the destination directory */
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const qse_wchar_t* arr[4];
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arr[0] = newpath;
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arr[1] = QSE_T("/");
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arr[2] = qse_basename(oldpath);
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arr[3] = QSE_NULL;
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#if defined(QSE_CHAR_IS_MCHAR)
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fop.new_path2 = qse_stradup (arr, QSE_NULL, fs->mmgr);
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#else
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fop.new_path2 = qse_wcsatombsdup (arr, QSE_NULL, fs->mmgr);
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#endif
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if (fop.new_path2 == QSE_NULL)
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{
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fs->errnum = QSE_FS_ENOMEM;
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goto oops;
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}
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}
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else
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{
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/* the destination file is not directory, unlink first
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* TODO: but is this necessary? RENAME will do it */
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QSE_UNLINK (fop.new_path);
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}
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}
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}
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if (!(fop.flags & FOP_CROSS_DEV))
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{
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/* TODO: make it better to be able to move non-empty diretories
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improve it to be able to move by copy/delete across volume */
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if (QSE_RENAME (fop.old_path, fop.new_path) == -1)
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{
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if (errno != EXDEV)
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{
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fs->errnum = qse_fs_syserrtoerrnum (fs, errno);
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goto oops;
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}
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fop.flags |= FOP_CROSS_DEV;
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}
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else goto done;
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}
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QSE_ASSERT (fop.flags & FOP_CROSS_DEV);
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if (!S_ISDIR(fop.old_stat.st_mode))
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{
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/* copy a single file */
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/* ............ */
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}
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#if 0
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if (!recursive)
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{
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fs->errnum = QSE_FS_E....;
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goto oops;
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}
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copy recursively...
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#endif
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done:
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#if defined(QSE_CHAR_IS_MCHAR)
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if (fop.new_path2) QSE_MMGR_FREE (fs->mmgr, fop.new_path2);
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#else
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if (fop.new_path2) QSE_MMGR_FREE (fs->mmgr, fop.new_path2);
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QSE_MMGR_FREE (fs->mmgr, fop.old_path);
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QSE_MMGR_FREE (fs->mmgr, fop.new_path);
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#endif
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return 0;
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oops:
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#if defined(QSE_CHAR_IS_MCHAR)
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if (fop.new_path2) QSE_MMGR_FREE (fs->mmgr, fop.new_path2);
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#else
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if (fop.new_path2) QSE_MMGR_FREE (fs->mmgr, fop.new_path2);
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if (fop.old_path) QSE_MMGR_FREE (fs->mmgr, fop.old_path);
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if (fop.new_path) QSE_MMGR_FREE (fs->mmgr, fop.new_path);
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#endif
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return -1;
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/* ------------------------------------------------------ */
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#endif
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}
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#if 0
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static int move_file_in_fs (qse_fs_t* fs, const qse_fs_char_t* oldpath, const qse_fs_char_t* newpath, int flags)
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{
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#if defined(_WIN32)
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/* ------------------------------------------------------ */
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if (MoveFile (oldpath, newpath) == FALSE)
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{
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DWORD e = GetLastError();
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if (e == ERROR_ALREADY_EXISTS)
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{
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DeleteFile (newpath);
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if (MoveFile (oldpath, newpath) == FALSE)
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{
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fs->errnum = qse_fs_syserrtoerrnum (fs, GetLastError());
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return -1;
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}
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}
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else
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{
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fs->errnum = qse_fs_syserrtoerrnum (fs, e);
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return -1;
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}
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}
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return 0;
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/* ------------------------------------------------------ */
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#elif defined(__OS2__)
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/* ------------------------------------------------------ */
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/* TODO: improve it */
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APIRET rc;
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rc = DosMove (oldpath, newpath);
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if (rc == ERROR_ALREADY_EXISTS || rc == ERROR_ACCESS_DENIED)
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{
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DosDelete (fop.new_path);
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rc = DosMove (oldpath, newpath);
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}
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if (rc != NO_ERROR)
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{
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fs->errnum = qse_fs_syserrtoerrnum (fs, rc);
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return -1;
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}
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return 0;
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/* ------------------------------------------------------ */
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#elif defined(__DOS__)
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/* ------------------------------------------------------ */
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if (rename (oldpath, newpath) <= -1)
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{
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/* FYI, rename() on watcom seems to set
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* errno to EACCES when the new path exists. */
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unlink (newpath);
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if (rename (oldpath, newpath) <= -1)
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{
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fs->errnum = qse_fs_syserrtoerrnum (fs, errno);
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return -1;
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}
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}
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return 0;
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/* ------------------------------------------------------ */
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#else
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if (!(flags & QSE_FS_CPFILE_REPLACE))
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{
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qse_lstat_t st;
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if (QSE_LSTAT (newpath, &st) >= 0)
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{
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fs->errnum = QSE_FS_EEXIST;
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return -1;
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}
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}
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if (QSE_RENAME (oldpath, newpath) == -1)
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{
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fs->errnum = qse_fs_syserrtoerrnum (fs, errno);
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return -1;
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}
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return 0;
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#endif
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}
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#endif
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