Mercurial > hg > toybox
view scripts/test/cksum.test @ 1087:b73a61542297 draft
I've finally gotten 'cpio' into a shape where it could be useable.
This version can archive and extract directories, sockets, FIFOs, devices,
symlinks, and regular files.
Supported options are -iot, -H FMT (which is a dummy right now).
It only writes newc, and could read newc or newcrc.
This does NOT implement -d, which essentially is equivalent to
mkdir -p $(dirname $FILE)
for every file that needs it.
Hard links are not supported, though it would be easy to add them given
a hash table or something like that.
I also have not implemented the "<n> blocks" output on stderr.
If desired, I can add it pretty simply.
There is one assumption this makes: that the mode of a file, as mode_t,
is bitwise equivalent to the mode as defined for the cpio format.
This is true of Linux, but is not mandated by POSIX.
If it is compiled for a system where that is false, the archives will
not be portable.
| author | Isaac Dunham <ibid.ag@gmail.com> |
|---|---|
| date | Mon, 14 Oct 2013 11:15:22 -0500 |
| parents | fa3293dda216 |
| children |
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#!/bin/bash [ -f testing.sh ] && . testing.sh #testing "name" "command" "result" "infile" "stdin" # Default behavior on stdin and on files. testing "cksum on stdin" "echo -n hello | cksum" "3287646509 5\n" "" "" echo -n "hello" > tmpfile testing "cksum on file" "cksum tmpfile" "3287646509 5 tmpfile\n" "" "" rm -f tmpfile touch one two testing "cksum on multiple files" "cksum one two" "4294967295 0 one\n4294967295 0 two\n" "" "" rm -f one two # Check the length suppression, both calculate the CRC on 'abc' but the second # option has length suppression on and has the length concatenated to 'abc'. testing "cksum on abc including length" "echo -n 'abc' | cksum" "1219131554 3\n" "" "" testing "cksum on abc excluding length" "echo -ne 'abc\x3' | cksum -N" "1219131554 4\n" "" "" # cksum on no contents gives 0xffffffff (=4294967295) testing "cksum on no data post-inversion" "echo -n "" | cksum" "4294967295 0\n" "" "" # If we do preinversion we will then get 0. testing "cksum on no data pre+post-inversion" "echo -n "" | cksum -P" "0 0\n" "" "" # If we skip the post-inversion we also get 0 testing "cksum on no data no inversion" "echo -n "" | cksum -I" "0 0\n" "" "" # Two wrongs make a right. testing "cksum on no data pre-inversion" "echo -n "" | cksum -PI" "4294967295 0\n" "" ""