74 lines
3.0 KiB
C
74 lines
3.0 KiB
C
|
/****************************************************************************
|
||
|
|
* libc/stdlib/lib_ptsname.c
|
||
|
|
*
|
||
|
|
* Copyright (C) 2016 Gregory Nutt. All rights reserved.
|
||
|
|
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||
|
|
*
|
||
|
|
* 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. Neither the name NuttX 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 COPYRIGHT HOLDERS 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
|
||
|
|
* COPYRIGHT OWNER 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.
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* Included Files
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
#include <nuttx/config.h>
|
||
|
|
|
||
|
|
#include <stdlib.h>
|
||
|
|
|
||
|
|
#ifdef CONFIG_PSEUDOTERM_SUSV1
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* Public Functions
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* Name: ptsname
|
||
|
|
*
|
||
|
|
* Description:
|
||
|
|
* The ptsname() function returns the name of the slave pseudoterminal
|
||
|
|
* device corresponding to the master referred to by fd.
|
||
|
|
*
|
||
|
|
* Returned Values:
|
||
|
|
* On success, ptsname() returns a pointer to a string in static storage
|
||
|
|
* which will be overwritten by subsequent calls. This pointer must not
|
||
|
|
* be freed. On failure, NULL is returned.
|
||
|
|
*
|
||
|
|
* ENOTTY fd does not refer to a pseudoterminal master device.
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
FAR char *ptsname(int fd)
|
||
|
|
{
|
||
|
|
static char devname[16];
|
||
|
|
int ret = ptsname_r(fd, devname, 16);
|
||
|
|
return ret < 0 ? NULL : devname;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* CONFIG_PSEUDOTERM_SUSV1 */
|