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/* Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
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; version 2 of the License.
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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA */
#include "mysys_priv.h"
#include "my_sys.h"
#include "mysys_err.h"
#include <my_dir.h>
#include "my_thread_local.h"
/*
Generate MY_MODE representation from perm_flags.
@param perm_flags Permission information
@return Permission in MY_STAT format
*/
MY_MODE get_file_perm(ulong perm_flags)
{
MY_MODE file_perm= 0;
if (perm_flags <= 0)
return file_perm;
#if defined _WIN32
if (perm_flags & (USER_READ | GROUP_READ | OTHERS_READ))
file_perm|= _S_IREAD;
if (perm_flags & (USER_WRITE | GROUP_WRITE | OTHERS_WRITE))
file_perm|= _S_IWRITE;
#else
if (perm_flags & USER_READ)
file_perm|= S_IRUSR;
if (perm_flags & USER_WRITE)
file_perm|= S_IWUSR;
if (perm_flags & USER_EXECUTE)
file_perm|= S_IXUSR;
if (perm_flags & GROUP_READ)
file_perm|= S_IRGRP;
if (perm_flags & GROUP_WRITE)
file_perm|= S_IWGRP;
if (perm_flags & GROUP_EXECUTE)
file_perm|= S_IXGRP;
if (perm_flags & OTHERS_READ)
file_perm|= S_IROTH;
if (perm_flags & OTHERS_WRITE)
file_perm|= S_IWOTH;
if (perm_flags & OTHERS_EXECUTE)
file_perm|= S_IXOTH;
#endif
return file_perm;
}
/*
my_chmod : Change permission on a file
@param filename : Name of the file
@param perm_flags : Permission information
@param my_flags : Error handling
@return
@retval TRUE : Error changing file permission
@retval FALSE : File permission changed successfully
*/
my_bool my_chmod(const char *filename, ulong perm_flags, myf my_flags)
{
int ret_val;
MY_MODE file_perm;
DBUG_ENTER("my_chmod");
DBUG_ASSERT(filename && filename[0]);
file_perm= get_file_perm(perm_flags);
#ifdef _WIN32
ret_val= _chmod(filename, file_perm);
#else
ret_val= chmod(filename, file_perm);
#endif
if (ret_val && (my_flags & (MY_FAE+MY_WME)))
{
char errbuf[MYSYS_STRERROR_SIZE];
set_my_errno(errno);
my_error(EE_CHANGE_PERMISSIONS, MYF(0), filename,
errno, my_strerror(errbuf, sizeof(errbuf), errno));
}
DBUG_RETURN(ret_val ? TRUE : FALSE);
}
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