CVS commit: src/bin/sh

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

Module Name:    src
Committed By:   kre
Date:           Tue Aug 12 00:32:16 UTC 2025

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

Log Message:
PR standards/59565 - cd "" is now an error, not == cd .

POSIX 2024 requires that cd "" generate an error message,
and fail.

Until now shells (including this one) have typically equated
it to "cd ." as in the distant past, a lookup of "" as a path
name would return the current directory (aka ".").

>From now on, we generate an error, as specified.
(For this commit, the error message is kind of pathetic,
but it is at least there - that will be fixed in a
subsequent commit.)


To generate a diff of this commit:
cvs rdiff -u -r1.53 -r1.54 src/bin/sh/cd.c

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