1#!/bin/bash 2 3[ -f testing.sh ] && . testing.sh 4 5# We need to test name and file padding. 6# This means all possible values of strlen(name)+1 % 4, 7# plus file sizes of at least 0-4. 8 9touch a bb ccc dddd 10testing "name padding" "cpio -o -H newc|cpio -it" "a\nbb\nccc\ndddd\n" "" "a\nbb\nccc\ndddd\n" 11rm a bb ccc dddd 12 13touch a 14printf '1' >b 15printf '22' >c 16printf '333' >d 17testing "file padding" "cpio -o -H newc|cpio -it" "a\nb\nc\nd\n" "" "a\nb\nc\nd\n" 18rm a b c d 19 20touch a 21printf '1' >bb 22printf '22' >ccc 23printf '333' >dddd 24# With the proper padding, header length, and file length, 25# the relevant bit should be here: 26# 110*5 + 4*3 + 2 + 6*3 = 550 + 12 + 20 = 582 27# files are padded to n*4, names are padded to 2 + n*4 due to the header length 28testing "archive length" "cpio -o -H newc|dd ibs=2 skip=291 count=5 2>/dev/null" "TRAILER!!!" "" "a\nbb\nccc\ndddd\n" 29testing "archive magic" "cpio -o -H newc|dd ibs=2 count=3 2>/dev/null" "070701" "" "a\n" 30# check name length (8 bytes before the empty "crc") 31testing "name length" "cpio -o -H newc|dd ibs=2 skip=47 count=4 2>/dev/null" "00000002" "" "a\n" 32rm a bb ccc dddd 33 34# archive dangling symlinks and empty files even if we cannot open them 35touch a; chmod a-rwx a; ln -s a/cant b 36testing "archives unreadable empty files" "cpio -o -H newc|cpio -it" "a\nb\n" "" "a\nb\n" 37chmod u+rw a; rm -f a b 38 39 40