* Copyright (c) 1990 The Regents of the University of California.
* This code is derived from software contributed to Berkeley by
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* 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
#if defined(LIBC_SCCS) && !defined(lint)
/*static char *sccsid = "from: @(#)funopen.c 5.2 (Berkeley) 2/5/91";*/
static char *rcsid
= "$Id: funopen.c,v 1.15 1994/01/27 06:09:37 proven Exp $";
#endif /* LIBC_SCCS and not lint */
funopen(cookie
, readfn
, writefn
, seekfn
, closefn
)
int (*readfn
)(), (*writefn
)();
fpos_t (*seekfn
)(void *cookie
, fpos_t off
, int whence
);
if (writefn
== NULL
) { /* illegal */
flags
= "w"; /* write only */
flags
= "r"; /* read only */
flags
= "r+"; /* read-write */
if (fd_ops
= (struct fd_ops
*)malloc(sizeof(struct fd_ops
))) {
if ((!(fd
= fd_allocate())) < OK
) {
/* Alloc space for funtion pointer table */
fd_table
[fd
]->type
= FD_HALF_DUPLEX
;
fd_table
[fd
]->ops
= fd_ops
;
/* Save the cookie, it's important */
fd_table
[fd
]->fd
.ptr
= cookie
;
if (fp
= fdopen(fd
, flags
))