286df29e7d
This has already been suggested by Evan Gates <evan.gates@gmail.com>
and he's totally right about it.
So, what's the problem?
I wrote a testing program asshole.c with
int
main(void)
{
execl("/path/to/sbase/echo", "echo", "test");
return 0;
}
and checked the results with glibc and musl. Note that the
sentinel NULL is missing from the end of the argument list.
glibc calculates an argc of 5, musl 4 (instead of 2) and thus
mess up things anyway.
The powerful arg.h also focuses on argv instead of argc as well,
but ignoring argc completely is also the wrong way to go.
Instead, a more idiomatic approach is to check *argv only and
decrement argc on the go.
While at it, I rewrote yes(1) in an argv-centric way as well.
All audited tools have been "fixed" and each following audited
tool will receive the same treatment.
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
=* comm yes none
= cp yes none (-i)
=* cron non-posix none
#* cut yes none
=* date yes -u
=*| 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, -l, -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/