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/* Copy access control list from one file to another. -*- coding: utf-8 -*-
Copyright (C) 2002-2003, 2005-2020 Free Software Foundation, Inc.
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
the Free Software Foundation; either version 3 of the License, or
(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 "acl-internal.h"
/* 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.
Return -2 and set errno for an error relating to the source file.
Return -1 and set errno for an error relating to the destination file. */
int
qcopy_acl (const char *src_name, int source_desc, const char *dst_name,
int dest_desc, mode_t mode)
{
struct permission_context ctx;
int ret;
ret = get_permissions (src_name, source_desc, mode, &ctx);
if (ret != 0)
return -2;
ret = set_permissions (&ctx, dst_name, dest_desc);
free_permission_context (&ctx);
return ret;
}
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