diff options
Diffstat (limited to 'lib/openat-priv.h')
-rw-r--r-- | lib/openat-priv.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/lib/openat-priv.h b/lib/openat-priv.h new file mode 100644 index 0000000..2d98821 --- /dev/null +++ b/lib/openat-priv.h @@ -0,0 +1,55 @@ +/* Internals for openat-like functions. + + Copyright (C) 2005, 2006 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +/* written by Jim Meyering */ + +#include <errno.h> +#include <stdlib.h> + +#define OPENAT_BUFFER_SIZE 512 +char *openat_proc_name (char buf[OPENAT_BUFFER_SIZE], int fd, char const *file); + +/* Some systems don't have ENOSYS. */ +#ifndef ENOSYS +# ifdef ENOTSUP +# define ENOSYS ENOTSUP +# else +/* Some systems don't have ENOTSUP either. */ +# define ENOSYS EINVAL +# endif +#endif + +/* Some systems don't have EOPNOTSUPP. */ +#ifndef EOPNOTSUPP +# ifdef ENOTSUP +# define EOPNOTSUPP ENOTSUP +# else +/* Some systems don't have ENOTSUP either. */ +# define EOPNOTSUPP EINVAL +# endif +#endif + +/* Trying to access a BUILD_PROC_NAME file will fail on systems without + /proc support, and even on systems *with* ProcFS support. Return + nonzero if the failure may be legitimate, e.g., because /proc is not + readable, or the particular .../fd/N directory is not present. */ +#define EXPECTED_ERRNO(Errno) \ + ((Errno) == ENOTDIR || (Errno) == ENOENT \ + || (Errno) == EPERM || (Errno) == EACCES \ + || (Errno) == ENOSYS /* Solaris 8 */ \ + || (Errno) == EOPNOTSUPP /* FreeBSD */) |