b5d4a01821
Gregory Nutt has submitted the SGA and we can migrate the licenses to Apache. Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
81 lines
2.7 KiB
C
81 lines
2.7 KiB
C
/****************************************************************************
|
|
* libs/libc/stdlib/lib_ptsnamer.c
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <sys/ioctl.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <assert.h>
|
|
|
|
#ifdef CONFIG_PSEUDOTERM_SUSV1
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: ptsname_r
|
|
*
|
|
* Description:
|
|
* The ptsname_r() function is the reentrant equivalent of ptsname().
|
|
* It returns the name of the slave pseudoterminal device as a null-
|
|
* terminated string in the buffer pointed to by buf. The buflen
|
|
* argument specifies the number of bytes available in buf.
|
|
*
|
|
* Returned Value:
|
|
* On success, ptsname_r() returns 0. On failure, a nonzero value is
|
|
* returned and errno is set to indicate the error.
|
|
*
|
|
* EINVAL (ptsname_r() only) buf is NULL.
|
|
* ENOTTY fd does not refer to a pseudoterminal master device.
|
|
* ERANGE (ptsname_r() only) buf is too small.
|
|
*
|
|
****************************************************************************/
|
|
|
|
int ptsname_r(int fd, FAR char *buf, size_t buflen)
|
|
{
|
|
int ptyno;
|
|
int ret;
|
|
|
|
DEBUGASSERT(buf != NULL);
|
|
|
|
/* Get the slave PTY number */
|
|
|
|
ret = ioctl(fd, TIOCGPTN, (unsigned long)((uintptr_t)&ptyno));
|
|
if (ret < 0)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
/* Create the device name. This current does not handler EINVAL or ERANGE
|
|
* error detection.
|
|
*/
|
|
|
|
snprintf(buf, buflen, "/dev/pts/%d", ptyno);
|
|
return OK;
|
|
}
|
|
|
|
#endif /* CONFIG_PSEUDOTERM_SUSV1 */
|