CVS commit: src/usr.bin/less/less

["David A. Holland" <dholland%netbsd.org@localhost>]

Module Name:    src
Committed By:   dholland
Date:           Mon Dec 14 03:58:27 UTC 2009

Modified Files:
        src/usr.bin/less/less: cmdbuf.c

Log Message:
Don't attempt to read or write ~/.lesshst if it's not a regular file
or a symlink to a regular file. Previously, symlinking to /dev/null
would cause less to trash /dev/null if run with sufficient privileges,
as seen in PR misc/42237.

While the official way to disable .lesshst is to set an environment
variable, that is problematic in some cases, such as single-user mode.
A safer way to prevent even an unpatched less from writing anything
out is to mkdir ~/.lesshst.


To generate a diff of this commit:
cvs rdiff -u -r1.7 -r1.8 src/usr.bin/less/less/cmdbuf.c

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