| /**************************************************************************** |
| * libs/libc/stdlib/lib_ptsname.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 <stdlib.h> |
| |
| #ifdef CONFIG_PSEUDOTERM |
| |
| /**************************************************************************** |
| * 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 Value: |
| * 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 */ |