modex.c revision 34f9b3eef6fdadbda0a846aa4d68691ac40eace5
/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1985-2009 AT&T Intellectual Property *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Intellectual Property *
* *
* A copy of the License is available at *
* http://www.opensource.org/licenses/cpl1.0.txt *
* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
* *
* Information and Software Systems Research *
* AT&T Research *
* Florham Park NJ *
* *
* Glenn Fowler <gsf@research.att.com> *
* David Korn <dgk@research.att.com> *
* Phong Vo <kpv@research.att.com> *
* *
***********************************************************************/
#pragma prototyped
/*
* Glenn Fowler
* AT&T Bell Laboratories
*
* mode_t representation support
*/
#include "modelib.h"
/*
* convert internal mode to external
*/
#undef modex
int
modex(register int i)
{
#if _S_IDPERM && _S_IDTYPE
return(i);
#else
register int x;
register int c;
x = 0;
#if _S_IDPERM
x |= (i & 07777);
#else
for (c = 0; c < PERMLEN; c++)
if (i & permmap[c++])
x |= permmap[c];
#endif
#if _S_IDTYPE
x |= (i & X_IFMT);
#else
if (S_ISREG(i)) x |= X_IFREG;
else if (S_ISDIR(i)) x |= X_IFDIR;
#ifdef S_ISLNK
else if (S_ISLNK(i)) x |= X_IFLNK;
#endif
else if (S_ISBLK(i)) x |= X_IFBLK;
else if (S_ISCHR(i)) x |= X_IFCHR;
#ifdef S_ISCTG
else if (S_ISCTG(i)) x |= X_IFCTG;
#endif
else if (S_ISFIFO(i)) x |= X_IFIFO;
#ifdef S_ISSOCK
else if (S_ISSOCK(i)) x |= X_IFSOCK;
#endif
#endif
return(x);
#endif
}