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att
GitHub Repository: att/ast
 Path: blob/master/src/lib/libast/string/fmtperm.c
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/***********************************************************************

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*                                                                      *

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*               This software is part of the ast package               *

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*          Copyright (c) 1985-2011 AT&T Intellectual Property          *

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*                      and is licensed under the                       *

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*                 Eclipse Public License, Version 1.0                  *

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*                    by AT&T Intellectual Property                     *

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*                                                                      *

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*                A copy of the License is available at                 *

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*          http://www.eclipse.org/org/documents/epl-v10.html           *

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*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *

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*                                                                      *

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*              Information and Software Systems Research               *

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*                            AT&T Research                             *

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*                           Florham Park NJ                            *

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*                                                                      *

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*                 Glenn Fowler <[email protected]>                  *

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*                  David Korn <[email protected]>                   *

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*                   Phong Vo <[email protected]>                    *

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*                                                                      *

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***********************************************************************/

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#pragma prototyped

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/*

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 * Glenn Fowler

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 * AT&T Bell Laboratories

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 *

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 * return strperm() expression for perm

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 */

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#include <ast.h>

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#include <ls.h>

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char*

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fmtperm(register int perm)

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{

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	register char*	s;

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	char*		buf;

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	s = buf = fmtbuf(32);

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	/*

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	 * u

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	 */

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	*s++ = 'u';

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	*s++ = '=';

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	if (perm & S_ISVTX)

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		*s++ = 't';

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	if (perm & S_ISUID)

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		*s++ = 's';

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	if (perm & S_IRUSR)

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		*s++ = 'r';

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	if (perm & S_IWUSR)

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		*s++ = 'w';

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	if (perm & S_IXUSR)

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		*s++ = 'x';

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	if ((perm & (S_ISGID|S_IXGRP)) == S_ISGID)

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		*s++ = 'l';

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	/*

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	 * g

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	 */

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	*s++ = ',';

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	*s++ = 'g';

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	*s++ = '=';

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	if ((perm & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP))

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		*s++ = 's';

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	if (perm & S_IRGRP)

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		*s++ = 'r';

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	if (perm & S_IWGRP)

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		*s++ = 'w';

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	if (perm & S_IXGRP)

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		*s++ = 'x';

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	/*

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	 * o

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	 */

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	*s++ = ',';

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	*s++ = 'o';

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	*s++ = '=';

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	if (perm & S_IROTH)

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		*s++ = 'r';

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	if (perm & S_IWOTH)

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		*s++ = 'w';

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	if (perm & S_IXOTH)

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		*s++ = 'x';

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	*s = 0;

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	return buf;

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}

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