/* Copyright (C) 2005-2021 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ #include <errno.h> #include <fcntl.h> #include <unistd.h> /* Read the contents of the symbolic link PATH relative to FD into no more than LEN bytes of BUF. The contents are not null-terminated. Returns the number of characters read, or -1 for errors. */ ssize_t readlinkat (int fd, const char *path, char *buf, size_t len) { if (path == NULL) { __set_errno (EINVAL); return -1; } if (fd != AT_FDCWD && fd < 0 && *path != '/') { __set_errno (EBADF); return -1; } __set_errno (ENOSYS); return -1; } stub_warning (readlinkat) libc_hidden_def (readlinkat)