103 lines
2.7 KiB
C
103 lines
2.7 KiB
C
/* Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA */
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#include "mysys_priv.h"
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#include "my_sys.h"
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#include "mysys_err.h"
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#include <my_dir.h>
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#include "my_thread_local.h"
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/*
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Generate MY_MODE representation from perm_flags.
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@param perm_flags Permission information
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@return Permission in MY_STAT format
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*/
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MY_MODE get_file_perm(ulong perm_flags)
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{
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MY_MODE file_perm= 0;
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if (perm_flags <= 0)
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return file_perm;
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#if defined _WIN32
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if (perm_flags & (USER_READ | GROUP_READ | OTHERS_READ))
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file_perm|= _S_IREAD;
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if (perm_flags & (USER_WRITE | GROUP_WRITE | OTHERS_WRITE))
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file_perm|= _S_IWRITE;
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#else
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if (perm_flags & USER_READ)
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file_perm|= S_IRUSR;
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if (perm_flags & USER_WRITE)
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file_perm|= S_IWUSR;
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if (perm_flags & USER_EXECUTE)
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file_perm|= S_IXUSR;
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if (perm_flags & GROUP_READ)
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file_perm|= S_IRGRP;
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if (perm_flags & GROUP_WRITE)
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file_perm|= S_IWGRP;
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if (perm_flags & GROUP_EXECUTE)
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file_perm|= S_IXGRP;
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if (perm_flags & OTHERS_READ)
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file_perm|= S_IROTH;
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if (perm_flags & OTHERS_WRITE)
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file_perm|= S_IWOTH;
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if (perm_flags & OTHERS_EXECUTE)
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file_perm|= S_IXOTH;
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#endif
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return file_perm;
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}
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/*
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my_chmod : Change permission on a file
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@param filename : Name of the file
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@param perm_flags : Permission information
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@param my_flags : Error handling
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@return
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@retval TRUE : Error changing file permission
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@retval FALSE : File permission changed successfully
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*/
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my_bool my_chmod(const char *filename, ulong perm_flags, myf my_flags)
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{
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int ret_val;
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MY_MODE file_perm;
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DBUG_ENTER("my_chmod");
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DBUG_ASSERT(filename && filename[0]);
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file_perm= get_file_perm(perm_flags);
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#ifdef _WIN32
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ret_val= _chmod(filename, file_perm);
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#else
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ret_val= chmod(filename, file_perm);
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#endif
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if (ret_val && (my_flags & (MY_FAE+MY_WME)))
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{
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char errbuf[MYSYS_STRERROR_SIZE];
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set_my_errno(errno);
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my_error(EE_CHANGE_PERMISSIONS, MYF(0), filename,
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errno, my_strerror(errbuf, sizeof(errbuf), errno));
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}
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DBUG_RETURN(ret_val ? TRUE : FALSE);
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}
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