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/* Dup2.c - Duplicate a file descriptor.
Copyright (C) 1992, 1996 Malc Arnold.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <fcntl.h>
/****************************************************************************/
/* RCS info. */
#ifndef lint
static char *RcsId = "$Id: dup2.c,v 2.0 1997/09/06 11:56:40 malc Rel $";
#endif /* ! lint */
/****************************************************************************/
/*LINTLIBRARY*/
/****************************************************************************/
/* Global function declarations */
extern int close(), fcntl();
/****************************************************************************/
int dup2(old_fd, new_fd)
int old_fd, new_fd;
{
/* Make new_fd equal to old_fd, closing new_fd */
(void) close(new_fd);
return(fcntl(old_fd, F_DUPFD, new_fd));
}
/****************************************************************************/
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