/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1989-2011 AT&T Intellectual Property *
* and is licensed under the *
* Eclipse Public License, Version 1.0 *
* by AT&T Intellectual Property *
* *
* A copy of the License is available at *
* http://www.eclipse.org/org/documents/epl-v10.html *
* (with md5 checksum b35adb5213ca9657e911e9befb180842) *
* *
* Information and Software Systems Research *
* AT&T Research *
* Florham Park NJ *
* *
* Glenn Fowler <gsf@research.att.com> *
* David Korn <dgk@research.att.com> *
* Eduardo Krell <ekrell@adexus.cl> *
* *
***********************************************************************/
#pragma prototyped
#include "3d.h"
#if defined(fchdir3d)
int
fchdir3d(int fd)
{
Dir_t* dp;
struct stat st;
if (fd >= 0 && fd < elementsof(state.file) && (dp = state.file[fd].dir) && !FSTAT(fd, &st) && dp->dev == st.st_dev && dp->ino == st.st_ino)
chdir(dp->path);
else if (FCHDIR(fd))
return -1;
return 0;
}
#else
NoP(fchdir)
#endif