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/*
* Copyright (C) 2014 Colin Walters <walters@verbum.org>.
*
* SPDX-License-Identifier: LGPL-2.0+
*
* This 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 of the License, or (at your option) any later version.
*
* This 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 this library. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#include "libglnx.h"
#include "ot-unix-utils.h"
G_BEGIN_DECLS
/* A little helper to call unlinkat() as a cleanup
* function. Mostly only necessary to handle
* deletion of temporary symlinks.
*/
typedef struct
{
int dfd;
char *path;
} OtCleanupUnlinkat;
static inline void
ot_cleanup_unlinkat_clear (OtCleanupUnlinkat *cleanup)
{
g_clear_pointer (&cleanup->path, g_free);
}
static inline void
ot_cleanup_unlinkat (OtCleanupUnlinkat *cleanup)
{
if (cleanup->path)
{
(void)unlinkat (cleanup->dfd, cleanup->path, 0);
ot_cleanup_unlinkat_clear (cleanup);
}
}
G_DEFINE_AUTO_CLEANUP_CLEAR_FUNC (OtCleanupUnlinkat, ot_cleanup_unlinkat)
GFile *ot_fdrel_to_gfile (int dfd, const char *path);
gboolean ot_readlinkat_gfile_info (int dfd, const char *path, GFileInfo *target_info,
GCancellable *cancellable, GError **error);
gboolean ot_openat_read_stream (int dfd, const char *path, gboolean follow,
GInputStream **out_istream, GCancellable *cancellable,
GError **error);
gboolean ot_ensure_unlinked_at (int dfd, const char *path, GError **error);
gboolean ot_openat_ignore_enoent (int dfd, const char *path, int *out_fd, GError **error);
gboolean ot_dfd_iter_init_allow_noent (int dfd, const char *path, GLnxDirFdIterator *dfd_iter,
gboolean *out_exists, GError **error);
GBytes *ot_map_anonymous_tmpfile_from_content (GInputStream *instream, GCancellable *cancellable,
GError **error);
GBytes *ot_fd_readall_or_mmap (int fd, goffset offset, GError **error);
gboolean ot_parse_file_by_line (const char *path, gboolean (*cb) (const char *, void *, GError **),
void *cbdata, GCancellable *cancellable, GError **error);
gboolean ot_get_dir_size (int dfd, const char *path, guint64 *out_size, GCancellable *cancellable,
GError **error);
G_END_DECLS
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