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72 lines
2.4 KiB
C
72 lines
2.4 KiB
C
/* provide a replacement openat function
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Copyright (C) 2004, 2005 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
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/* written by Jim Meyering */
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#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <dirent.h>
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#include <unistd.h>
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#include <stdbool.h>
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#ifndef __attribute__
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# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8) || __STRICT_ANSI__
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# define __attribute__(x) /* empty */
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# endif
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#endif
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#ifndef ATTRIBUTE_NORETURN
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# define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
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#endif
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#ifndef AT_FDCWD
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# define AT_FDCWD (-3041965) /* same value as Solaris 9 */
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# define AT_SYMLINK_NOFOLLOW 4096 /* same value as Solaris 9 */
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# define AT_REMOVEDIR (0x1) /* same value as Solaris 9 */
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# ifdef __OPENAT_PREFIX
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# undef openat
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# define __OPENAT_CONCAT(x, y) x ## y
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# define __OPENAT_XCONCAT(x, y) __OPENAT_CONCAT (x, y)
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# define __OPENAT_ID(y) __OPENAT_XCONCAT (__OPENAT_PREFIX, y)
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# define openat __OPENAT_ID (openat)
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int openat (int fd, char const *file, int flags, /* mode_t mode */ ...);
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int openat_permissive (int fd, char const *file, int flags, bool *restore_failed, ...);
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# if ! HAVE_FDOPENDIR
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# define fdopendir __OPENAT_ID (fdopendir)
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# endif
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DIR *fdopendir (int fd);
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# define fstatat __OPENAT_ID (fstatat)
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int fstatat (int fd, char const *file, struct stat *st, int flag);
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# define unlinkat __OPENAT_ID (unlinkat)
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int unlinkat (int fd, char const *file, int flag);
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void openat_restore_fail (int) ATTRIBUTE_NORETURN;
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void openat_save_fail (int) ATTRIBUTE_NORETURN;
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# define openat_ro(Fd, File, Flags, RF) openat_permissive (Fd, File, Flags, RF)
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# else
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# define openat_restore_fail(Errno) /* empty */
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# define openat_save_fail(Errno) /* empty */
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# endif
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#endif
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#ifndef openat_ro
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# define openat_ro(Fd, File, Flags, RF) openat (Fd, File, Flags)
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#endif
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