1/* Internals for openat-like functions. 2 3 Copyright (C) 2005-2006, 2009-2010 Free Software Foundation, Inc. 4 5 This program is free software: you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 3 of the License, or 8 (at your option) any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 17 18/* written by Jim Meyering */ 19 20#ifndef _GL_HEADER_OPENAT_PRIV 21#define _GL_HEADER_OPENAT_PRIV 22 23#include <errno.h> 24#include <stdlib.h> 25 26#define OPENAT_BUFFER_SIZE 512 27char *openat_proc_name (char buf[OPENAT_BUFFER_SIZE], int fd, char const *file); 28 29/* Trying to access a BUILD_PROC_NAME file will fail on systems without 30 /proc support, and even on systems *with* ProcFS support. Return 31 nonzero if the failure may be legitimate, e.g., because /proc is not 32 readable, or the particular .../fd/N directory is not present. */ 33#define EXPECTED_ERRNO(Errno) \ 34 ((Errno) == ENOTDIR || (Errno) == ENOENT \ 35 || (Errno) == EPERM || (Errno) == EACCES \ 36 || (Errno) == ENOSYS /* Solaris 8 */ \ 37 || (Errno) == EOPNOTSUPP /* FreeBSD */) 38 39/* Wrapper function shared among linkat and renameat. */ 40int at_func2 (int fd1, char const *file1, 41 int fd2, char const *file2, 42 int (*func) (char const *file1, char const *file2)); 43 44#endif /* _GL_HEADER_OPENAT_PRIV */ 45