1#!/bin/sh 2# Exercise a few more corners of the copying code. 3 4# Copyright (C) 2011-2023 Free Software Foundation, Inc. 5 6# This program is free software: you can redistribute it and/or modify 7# it under the terms of the GNU General Public License as published by 8# the Free Software Foundation, either version 3 of the License, or 9# (at your option) any later version. 10 11# This program is distributed in the hope that it will be useful, 12# but WITHOUT ANY WARRANTY; without even the implied warranty of 13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14# GNU General Public License for more details. 15 16# You should have received a copy of the GNU General Public License 17# along with this program. If not, see <https://www.gnu.org/licenses/>. 18 19. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src 20print_ver_ cp dd 21 22touch sparse_chk 23seek_data_capable_ sparse_chk \ 24 || skip_ "insufficient SEEK_DATA support" 25 26# Exercise the code that handles a file ending in a hole. 27printf x > k || framework_failure_ 28dd bs=1k seek=128 of=k < /dev/null || framework_failure_ 29 30# The first time through the outer loop, the input file, K, ends with a hole. 31# The second time through, we append a byte so that it does not. 32for append in no yes; do 33 test $append = yes && printf y >> k 34 for i in always never; do 35 cp --reflink=never --sparse=$i k k2 || fail=1 36 cmp k k2 || fail=1 37 done 38done 39 40# Ensure that --sparse=always can restore holes. 41rm -f k 42# Create a file starting with an "x", followed by 256K-1 0 bytes. 43printf x > k || framework_failure_ 44dd bs=1k seek=1 of=k count=255 < /dev/zero || framework_failure_ 45 46# cp should detect the all-zero blocks and convert some of them to holes. 47cp --debug --reflink=never --sparse=always k k2 >cp.out || fail=1 48cmp k k2 || fail=1 49grep 'sparse detection: .*zeros' cp.out || { cat cp.out; fail=1; } 50 51# cp should disable reflink AND copy offload with --sparse=never 52cp --debug --sparse=never k k2 >cp.out || fail=1 53cmp k k2 || fail=1 54grep 'copy offload: avoided, reflink: no' cp.out || { cat cp.out; fail=1; } 55 56Exit $fail 57