/***********************************************************************
* *
* 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 FS
int
fs3d_dup(int ofd, int nfd)
{
register Mount_t* mp;
if (nfd >= 0 && ofd >= 0 && ofd < elementsof(state.file))
{
if (state.cache)
{
if (!(state.file[ofd].flags & FILE_OPEN))
fileinit(ofd, NiL, NiL, 0);
state.file[nfd] = state.file[ofd];
state.file[nfd].flags &= ~FILE_CLOEXEC;
state.file[nfd].reserved = 0;
if (nfd > state.cache)
state.cache = nfd;
if (nfd > state.open)
state.open = nfd;
if (mp = state.file[nfd].mount)
fscall(mp, MSG_dup, nfd, ofd);
for (mp = state.global; mp; mp = mp->global)
if (fssys(mp, MSG_dup))
fscall(mp, MSG_dup, nfd, ofd);
}
#if defined(fchdir3d)
if (state.file[nfd].dir)
{
free(state.file[nfd].dir);
state.file[nfd].dir = 0;
}
if (state.file[ofd].dir && (state.file[nfd].dir = newof(0, Dir_t, 1, strlen(state.file[ofd].dir->path))))
{
strcpy(state.file[nfd].dir->path, state.file[ofd].dir->path);
state.file[nfd].dir->dev = state.file[ofd].dir->dev;
state.file[nfd].dir->ino = state.file[ofd].dir->ino;
}
#endif
}
return 0;
}
#endif
#ifdef dup3d
int
dup3d(int fd)
{
register int r;
initialize();
r = DUP(fd);
#if FS
if (r >= 0 && r < elementsof(state.file))
fs3d_dup(fd, r);
#endif
return r;
}
#else
NoN(dup)
#endif