CVS commit: src/bin/sh

["Robert Elz" <kre%netbsd.org@localhost>]

Module Name:    src
Committed By:   kre
Date:           Fri Jun 22 18:19:41 UTC 2018

Modified Files:
        src/bin/sh: expand.c

Log Message:
When processing character classes ([:xxx:] inside []), treat a class name
that is longer than we can handle the same way we treat an unknown
class name (as a valid char class which contains nothing, so never
matches).   Previously a "too long" class name invalidated the
class, so [:very-long-name:] would match any of  '[' ':' 'v'  ...
(note: "very-long-name" is not long enough to trigger this, but you
get the idea!)

However, the name itself has a restricted syntax ([[:***:]] is not a
character class, it is a match for one of a '[' ':' or '*', followed by
a ']') which we did not implement - check the syntax of the name before
treating it as a character class (but we do add '_' to alphanumerics
as legal class name characters).


To generate a diff of this commit:
cvs rdiff -u -r1.122 -r1.123 src/bin/sh/expand.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.