forked from Imagelibrary/rtems
5e7b3c6533
The FACE Technical Standard, Edition 3.0 and later require the definition of the subcommand SOCKCLOSE in <devctl.h>. Reference: https://www.opengroup.org/face closes #3856.
87 lines
3.0 KiB
C
87 lines
3.0 KiB
C
/*
|
|
* Copyright (c) 2016, 2020 Joel Sherrill <joel@rtems.org>.
|
|
* All rights reserved.
|
|
*
|
|
* 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#define _POSIX_26_C_SOURCE
|
|
|
|
#include <devctl.h>
|
|
#include <sys/ioctl.h>
|
|
#include <rtems/seterr.h>
|
|
|
|
#include <unistd.h>
|
|
|
|
int posix_devctl(
|
|
int fd,
|
|
int dcmd,
|
|
void *__restrict dev_data_ptr,
|
|
size_t nbyte,
|
|
int *__restrict dev_info_ptr
|
|
)
|
|
{
|
|
/*
|
|
* The POSIX 1003.26 standard allows for library implementations
|
|
* that implement posix_devctl() using ioctl(). In this case,
|
|
* the extra parameters are largely ignored.
|
|
*
|
|
* The FACE Technical Standard requires only that FIONBIO
|
|
* be supported for sockets.
|
|
*
|
|
* This method appears to be rarely implemented and there are
|
|
* no known required use cases for this method beyond those
|
|
* from the FACE Technical Standard.
|
|
*/
|
|
|
|
/*
|
|
* POSIX 1003.26 mentions that nbyte must be non-negative but this
|
|
* doesn't make sense because size_t is guaranteed to be unsigned.
|
|
*/
|
|
|
|
/*
|
|
* Since this is implemented on top of ioctl(), the device information
|
|
* is not going to be passed down. Fill it in with zero so the behavior
|
|
* is defined.
|
|
*/
|
|
if (dev_info_ptr != NULL) {
|
|
*dev_info_ptr = 0;
|
|
}
|
|
|
|
/*
|
|
* The FACE Technical Standard Edition 3.0 and newer requires the SOCKCLOSE
|
|
* ioctl command. This is because the Security Profile does not include
|
|
* close() and applications need a way to close sockets. Closing sockets is
|
|
* a minimum requirement so using close() in the implementation meets that
|
|
* requirement but also lets the application close other file types.
|
|
*/
|
|
if (dcmd == SOCKCLOSE ) {
|
|
return close(fd);
|
|
}
|
|
|
|
return ioctl(fd, dcmd, dev_data_ptr);
|
|
}
|