rm_/lib/copy-acl.c

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2020-09-02 16:47:03 +08:00
/* Copy access control list from one file to file. -*- coding: utf-8 -*-
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Copyright (C) 2002-2003, 2005-2022 Free Software Foundation, Inc.
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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
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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, see <https://www.gnu.org/licenses/>.
Written by Paul Eggert, Andreas Grünbacher, and Bruno Haible. */
#include <config.h>
#include "acl.h"
#include <errno.h>
#include "quote.h"
#include "error.h"
#include "gettext.h"
#define _(msgid) gettext (msgid)
/* Copy access control lists from one file to another. If SOURCE_DESC is
a valid file descriptor, use file descriptor operations, else use
filename based operations on SRC_NAME. Likewise for DEST_DESC and
DST_NAME.
If access control lists are not available, fchmod the target file to
MODE. Also sets the non-permission bits of the destination file
(S_ISUID, S_ISGID, S_ISVTX) to those from MODE if any are set.
Return 0 if successful, otherwise output a diagnostic and return a
negative error code. */
int
copy_acl (const char *src_name, int source_desc, const char *dst_name,
int dest_desc, mode_t mode)
{
int ret = qcopy_acl (src_name, source_desc, dst_name, dest_desc, mode);
switch (ret)
{
case -2:
error (0, errno, "%s", quote (src_name));
break;
case -1:
error (0, errno, _("preserving permissions for %s"), quote (dst_name));
break;
default:
break;
}
return ret;
}