92 lines
3.1 KiB
C
92 lines
3.1 KiB
C
/*
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* Copyright (C) 2014 Colin Walters <walters@verbum.org>.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#pragma once
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#include "ot-unix-utils.h"
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#include "libglnx.h"
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G_BEGIN_DECLS
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/* A little helper to call unlinkat() as a cleanup
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* function. Mostly only necessary to handle
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* deletion of temporary symlinks.
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*/
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typedef struct {
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int dfd;
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char *path;
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} OtCleanupUnlinkat;
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static inline void
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ot_cleanup_unlinkat_clear (OtCleanupUnlinkat *cleanup)
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{
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g_clear_pointer (&cleanup->path, g_free);
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}
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static inline void
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ot_cleanup_unlinkat (OtCleanupUnlinkat *cleanup)
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{
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if (cleanup->path)
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{
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(void) unlinkat (cleanup->dfd, cleanup->path, 0);
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ot_cleanup_unlinkat_clear (cleanup);
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}
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}
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G_DEFINE_AUTO_CLEANUP_CLEAR_FUNC(OtCleanupUnlinkat, ot_cleanup_unlinkat)
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GFile * ot_fdrel_to_gfile (int dfd, const char *path);
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gboolean ot_readlinkat_gfile_info (int dfd,
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const char *path,
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GFileInfo *target_info,
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GCancellable *cancellable,
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GError **error);
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gboolean ot_openat_read_stream (int dfd,
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const char *path,
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gboolean follow,
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GInputStream **out_istream,
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GCancellable *cancellable,
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GError **error);
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gboolean ot_ensure_unlinked_at (int dfd,
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const char *path,
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GError **error);
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gboolean ot_openat_ignore_enoent (int dfd,
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const char *path,
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int *out_fd,
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GError **error);
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gboolean ot_dfd_iter_init_allow_noent (int dfd,
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const char *path,
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GLnxDirFdIterator *dfd_iter,
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gboolean *out_exists,
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GError **error);
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GBytes *
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ot_map_anonymous_tmpfile_from_content (GInputStream *instream,
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GCancellable *cancellable,
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GError **error);
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GBytes *ot_fd_readall_or_mmap (int fd, goffset offset,
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GError **error);
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G_END_DECLS
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