univlib.h revision da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968
/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1985-2007 AT&T Knowledge Ventures *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Knowledge Ventures *
* *
* 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 Research
*
* universe support
*
* symbolic link external representation has trailing '\0' and $(...) style
* conditionals where $(...) corresponds to a kernel object (i.e., probably
* not environ)
*
* universe symlink conditionals use $(UNIVERSE)
*/
#ifndef _UNIVLIB_H
#define _UNIVLIB_H
#if defined(__STDPP__directive) && defined(__STDPP__hide)
__STDPP__directive pragma pp:hide getuniverse readlink setuniverse symlink universe
#else
#define getuniverse ______getuniverse
#define readlink ______readlink
#define setuniverse ______setuniverse
#define symlink ______symlink
#define universe ______universe
#endif
#include <ast.h>
#include <ls.h>
#include <errno.h>
#define UNIV_SIZE 9
#if _cmd_universe && _sys_universe
#include <sys/universe.h>
#endif
#if defined(__STDPP__directive) && defined(__STDPP__hide)
__STDPP__directive pragma pp:nohide getuniverse readlink setuniverse symlink universe
#else
#undef getuniverse
#undef readlink
#undef setuniverse
#undef symlink
#undef universe
#endif
#if _cmd_universe
#ifdef NUMUNIV
#define UNIV_MAX NUMUNIV
#else
#define UNIV_MAX univ_max
extern char* univ_name[];
extern int univ_max;
#endif
extern char univ_cond[];
extern int univ_size;
#else
extern char univ_env[];
#endif
extern int getuniverse(char*);
extern int readlink(const char*, char*, int);
extern int setuniverse(int);
extern int symlink(const char*, const char*);
extern int universe(int);
#endif