diff options
Diffstat (limited to 'nuttx/libc/unistd/lib_getcwd.c')
-rw-r--r-- | nuttx/libc/unistd/lib_getcwd.c | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/nuttx/libc/unistd/lib_getcwd.c b/nuttx/libc/unistd/lib_getcwd.c deleted file mode 100644 index 717ef2971..000000000 --- a/nuttx/libc/unistd/lib_getcwd.c +++ /dev/null @@ -1,132 +0,0 @@ -/**************************************************************************** - * libc/unistd/lib_getcwd.c - * - * Copyright (C) 2008, 2011 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 <sys/types.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <errno.h> - -#include "lib_internal.h" - -#if CONFIG_NFILE_DESCRIPTORS > 0 && !defined(CONFIG_DISABLE_ENVIRON) - -/**************************************************************************** - * Definitions - ****************************************************************************/ - -/**************************************************************************** - * Public Variables - ****************************************************************************/ - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: getwcd - * - * Description: - * getcwd() function places the absolute pathname of the current working - * directory in the array pointed to by 'buf', and returns 'buf.' The - * pathname copied to the array shall contain no components that are - * symbolic links. The 'size' argument is the size in bytes of the - * character array pointed to by the 'buf' argument. - * - * Input Parmeters: - * buf - a pointer to the location in which the current working directory - * pathaname is returned. - * size - The size in bytes avaiable at 'buf' - * - * Returned Value: - * Upon successful completion, getcwd() returns the 'buf' argument. - * Otherwise, getcwd() returns a null pointer and sets errno to indicate - * the error: - * - * EINVAL - * The 'size' argument is 0 or the 'buf' argument is NULL. - * ERANGE - * The size argument is greater than 0, but is smaller than the length - * of the currrent working directory pathname +1. - * EACCES - * Read or search permission was denied for a component of the pathname. - * ENOMEM - * Insufficient storage space is available. - * - ****************************************************************************/ - -FAR char *getcwd(FAR char *buf, size_t size) -{ - char *pwd; - - /* Verify input parameters */ - -#ifdef CONFIG_DEBUG - if (!buf || !size) - { - set_errno(EINVAL); - return NULL; - } -#endif - - /* If no working directory is defined, then default to the home directory */ - - pwd = getenv("PWD"); - if (!pwd) - { - pwd = CONFIG_LIB_HOMEDIR; - } - - /* Verify that the cwd will fit into the user-provided buffer */ - - if (strlen(pwd) + 1 > size) - { - set_errno(ERANGE); - return NULL; - } - - /* Copy the cwd to the user buffer */ - - strcpy(buf, pwd); - sched_unlock(); - return buf; -} -#endif /* CONFIG_NFILE_DESCRIPTORS && !CONFIG_DISABLE_ENVIRON */ |