src/basic/copy.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 /***
   5   This file is part of systemd.
   6
   7   Copyright 2014 Lennart Poettering
   8 ***/
   9
  10 #include <inttypes.h>
  11 #include <stdbool.h>
  12 #include <stdint.h>
  13 #include <sys/types.h>
  14
  15 typedef enum CopyFlags {
  16         COPY_REFLINK = 1U << 0, /* Try to reflink */
  17         COPY_MERGE   = 1U << 1, /* Merge existing trees with our new one to copy */
  18         COPY_REPLACE = 1U << 2, /* Replace an existing file if there's one */
  19 } CopyFlags;
  20
  21 int copy_file_fd(const char *from, int to, CopyFlags copy_flags);
  22 int copy_file(const char *from, const char *to, int open_flags, mode_t mode, unsigned chattr_flags, CopyFlags copy_flags);
  23 int copy_file_atomic(const char *from, const char *to, mode_t mode, unsigned chattr_flags, CopyFlags copy_flags);
  24 int copy_tree(const char *from, const char *to, uid_t override_uid, gid_t override_gid, CopyFlags copy_flags);
  25 int copy_tree_at(int fdf, const char *from, int fdt, const char *to, uid_t override_uid, gid_t override_gid, CopyFlags copy_flags);
  26 int copy_directory_fd(int dirfd, const char *to, CopyFlags copy_flags);
  27 int copy_directory(const char *from, const char *to, CopyFlags copy_flags);
  28 int copy_bytes_full(int fdf, int fdt, uint64_t max_bytes, CopyFlags copy_flags, void **ret_remains, size_t *ret_remains_size);
  29 static inline int copy_bytes(int fdf, int fdt, uint64_t max_bytes, CopyFlags copy_flags) {
  30         return copy_bytes_full(fdf, fdt, max_bytes, copy_flags, NULL, NULL);
  31 }
  32 int copy_times(int fdf, int fdt);
  33 int copy_xattr(int fdf, int fdt);