/*- * Copyright (c) 1990, 1993 *	The Regents of the University of California.  All rights reserved. * * This code is derived from software contributed to Berkeley by * Chris Torek. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright *    notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright *    notice, this list of conditions and the following disclaimer in the *    documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software *    must display the following acknowledgement: *	This product includes software developed by the University of *	California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors *    may be used to endorse or promote products derived from this software *    without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #if defined(LIBC_SCCS) && !defined(lint)static char rcsid[] = "$OpenBSD: fdopen.c,v 1.2 1996/08/19 08:32:20 tholo Exp $";#endif /* LIBC_SCCS and not lint */ #include <sys/types.h>#include <fcntl.h>#include <unistd.h>#include <stdio.h>#include <errno.h>#include "local.h" FILE *fdopen(fd, mode)	int fd;	const char *mode;{	register FILE *fp;	int flags, oflags, fdflags, tmp; 	if ((flags = __sflags(mode, &oflags)) == 0)		return (NULL); 	/* Make sure the mode the user wants is a subset of the actual mode. *//*	if ((fdflags = fcntl(fd, F_GETFL, 0)) < 0)		return (NULL);	tmp = fdflags & O_ACCMODE;	if (tmp != O_RDWR && (tmp != (oflags & O_ACCMODE))) {		errno = EINVAL;		return (NULL);	}*/ 	if ((fp = __sfp()) == NULL)		return (NULL);	fp->_flags = flags;	/*	 * If opened for appending, but underlying descriptor does not have	 * O_APPEND bit set, assert __SAPP so that __swrite() will lseek to	 * end before each write.	 */	if ((oflags & O_APPEND) && !(fdflags & O_APPEND))		fp->_flags |= __SAPP;	fp->_file = fd;	fp->_cookie = fp;	fp->_read = __sread;	fp->_write = __swrite;	fp->_seek = __sseek;	fp->_close = __sclose;	return (fp);}