01de5df8e6
While auditing du(1) I realized that there's no way the over 100 lines of procedures in du() would pass the audit. Instead, I decided to rewrite this section using recurse() from libutil. However, the issue was that you'd need some kind of payload to count the number of bytes in the subdirectories and use them in the higher hierarchies. The solution is to add a "void *data" data pointer to each recurse- function-prototype, which we might also be able to use in other recurse-applications. recurse() itself had to be augmented with a recurse_samedev-flag, which basically prevents recurse from leaving the current device. Now, let's take a closer look at the audit: 1) Removing the now unnecessary util-functions push, pop, xrealpath, rename print() to printpath(), localize some global variables. 2) Only pass the block count to nblks instead of the entire stat- pointer. 3) Fix estrtonum to use the minimum of LLONG_MAX and SIZE_MAX. 4) Use idiomatic argv+argc-loop 5) Report proper exit-status.
sbase - suckless unix tools
===========================
sbase is a collection of unix tools that are inherently portable
across UNIX and UNIX-like systems.
The following tools are implemented ('*' == finished, '#' == UTF-8 support,
'=' == implicit UTF-8 support, '|' == audited):
UTILITY POSIX 2008 COMPLIANT MISSING OPTIONS
------- -------------------- ---------------
=*| basename yes none
=*| cal yes none
=*| cat yes none
=*| chgrp yes none
=*| chmod yes none
=*| chown yes none
=*| chroot non-posix none
=*| cksum yes none
=*| cmp yes none
#*| cols non-posix none
col yes none
=*| comm yes none
=*| cp yes none (-i)
=*| cron non-posix none
#*| cut yes none
=*| date yes none
=*| dirname yes none
=* du yes none
=*| echo yes none
=*| env yes none
#* expand yes none
#* expr yes none
=*| false yes none
= find yes none
#* fold yes none
=* grep yes none
=*| head yes none
=*| hostname non-posix none
=* kill yes none
=*| link yes none
=*| ln yes none
=*| logger yes none
=* logname yes none
= ls no (-C), -S, -f, -m, -s, -x
=*| md5sum non-posix none
=*| mkdir yes none
=*| mkfifo yes none
=* mktemp non-posix none
=*| mv yes none (-i)
=*| nice yes none
= nl no -d, -f, -h, -p
=*| nohup yes none
#* paste yes none
=*| printenv non-posix none
#* printf yes none
=*| pwd yes none
= readlink non-posix none
=* renice yes none
=*| rm yes none (-i)
=*| rmdir yes none
# sed
seq non-posix none
=*| setsid non-posix none
=*| sha1sum non-posix none
=*| sha256sum non-posix none
=*| sha512sum non-posix none
=*| sleep yes none
sort no -m, -o, -d, -f, -i
=* split yes none
=*| sponge non-posix none
#* strings yes none
=* sync non-posix none
=* tail yes none
=* tar non-posix none
=*| tee yes none
=* test yes none
=*| time yes none
=* touch yes none
#* tr yes none
=*| true yes none
=*| tty yes none
=*| uname yes none
#* unexpand yes none
=* uniq yes none
=*| unlink yes none
=* uudecode yes none
=* uuencode yes none
#* wc yes none
= xargs no -I, -L, -p, -s, -t, -x
=*| yes non-posix none
The complement of sbase is ubase[1] which is Linux-specific and
provides all the non-portable tools. Together they are intended to
form a base system similar to busybox but much smaller and suckless.
Building
--------
To build sbase, simply type make. You may have to fiddle with
config.mk depending on your system.
You can also build sbase-box, which generates a single binary
containing all the required tools. You can then symlink the
individual tools to sbase-box or run: make sbase-box-install
Ideally you will want to statically link sbase. If you are on Linux
we recommend using musl-libc[2].
Portability
-----------
sbase has been compiled on a variety of different operating systems,
including Linux, *BSD, OSX, Haiku, Solaris, SCO OpenServer and others.
Various combinations of operating systems and architectures have also
been built.
You can build sbase with gcc, clang, tcc, nwcc and pcc.
[1] http://git.suckless.org/ubase/
[2] http://www.musl-libc.org/