20 Nov
2011
20 Nov
'11
6:15 a.m.
Le 19/11/2011 23:48, Richard J.M. Hill a écrit :
The fact that a limit was placed on the maximum
line-length suggests
to me one of two things; either the person who wrote believed that it
was necessary, or they were re-using code from somewhere else, and
neglected to remove that restriction.
They took the code from the 'file' program where it's used to say
"with very long lines". There is the following comment in the source:
// This code is taken from the "file" command, where it is licensed
// in the "beer-ware license" :-)
// Original author: <joerg(a)FreeBSD.ORG>
The limit (TEXT_MAXLINELEN 300) is commented by:
/* Maximal length of a line we consider "reasonable". */
And if there's such a line, they consider the file isn't a text file.
That's not "reasonable", I think. ;-)
to be necessary, maybe we should try to imagine why it
is there. The
first thing that pops into my head (and again, remember my ignorance
in the ways of programming) is that they wanted to avoid the
possibility of buffer overflows or race conditions.
I don't think so.
If a line is longer than 301 bytes, conf->resultBuf = MIME_TEXT_PLAIN is
not executed, that's all.
The code I modified is really only used to define if the file is plain
text or not.
--
Laurent Dard