2012-01-14



Worked on masqmail and solved a bug, that Juergen  had  reported.
The  code at that place had been very unlogically. It operated on
wrong data structures. I must have been very tired when I put  it
there.



Only days ago, I wrote about the return value  of  strcmp(3).   I
think that it is the right one, although it introduces readabili-
ty problems.  Now I had to deal with fnmatch(3).  Here  I  think,
the return value is a wrong choice. Like strcmp(), it return 0 on
match/equal and non-zero else.  This is unintuitive! Whereas  the
word ``compare'' does not imply boolean, the word ``match'' has a
clear boolean expression. fnmatch() however returns the negate of
the expected value.

If  fnmatch()  would  at  least  be  a  drop-in  replacement  for
strcmp(),  then it wouldn't be all that bad, but it isn't. And if
it was, there better would exist a wrapper, named `matchcmp()' or
thelike to show that it's a function with a cmp-interface.



For creating audio CDs, I used to use `mp3cd'  on  Debian.   It's
not  available for Crux. I didn't wanted to create a port for it,
because it would have large depends.  Instead I wrote  a  minimal
version of mp3cd myself.  I named the following script `audiocd'.

     #!/bin/sh

     test $# -ne 1 && echo "Usage: audiocd PLAYLIST.m3u">&2 && exit 1

     tmp=`mktemp -d`
     trap 'echo exiting...; rm -rf "$tmp"' 0 1 2 15

     n=0
     cat "$1" | while read f ; do
             f2="`basename "$f" | tr ' ' _`"
             cp "$f" $tmp/`printf "%02d_%s" $n $f2`
             n=`expr $n + 1`
     done

     cd $tmp
     for i in * ; do
             mpg123 -w "$i.wav" "$i"
     done

     normalize -m *.wav

     wodim dev=/dev/cdrw -eject -audio -pad driveropts=burnfree *.wav

It's not perfect, and if you want a good  solution,  then  better
use  mp3cd,  but  at  least it was fun to create it and I learned
from doing so.  (mp3cd bases on the the ``MP3 CD Burning'' howto.
[0] )



Created a Crux port for mp3info, a very handy tool.

[0]  http://www.tldp.org/HOWTO/MP3-CD-Burning/


http://marmaro.de/lue/        markus schnalke <meillo@marmaro.de>