accordingly. Default (left): rc change-root user at host path vcs
percent; Default (right): sad-smiley
+ - strip-sensitive-characters (boolean): If the \`prompt_subst' option
+ is active in zsh, the shell performs lots of expansions on prompt
+ variable strings, including command substitution. So if you don't
+ control where some of your prompt strings is coming from, this is
+ an exploitable weakness. Grml's zsh setup does not set this option
+ and it is off in the shell in zsh-mode by default. If it *is* turned
+ on however, this style becomes active, and there are two flavours of
+ it: On per default is a global variant in the '*:setup' context. This
+ strips characters after the whole prompt string was constructed. There
+ is a second variant in the '*:items:<item>', that is off by default.
+ It allows fine grained control over which items' data is stripped.
+ The characters that are stripped are: \$ and \`.
+
Available styles in 'items:<item>' are: pre, post. These are strings that
are inserted before (pre) and after (post) the item in question. Thus, the
following would cause the user name to be printed in red instead of the
fi
}
-function grml_typeset_and_wrap () {
+function grml_wrap_reply () {
emulate -L zsh
local target="$1"
local new="$2"
local right="$4"
if (( ${+parameters[$new]} )); then
- typeset -g "${target}=${(P)target}${left}${(P)new}${right}"
+ REPLY="${left}${(P)new}${right}"
+ else
+ REPLY=''
fi
}
function grml_prompt_addto () {
emulate -L zsh
local target="$1"
- local lr it apre apost new v
+ local lr it apre apost new v REPLY
local -a items
shift
|| apost=${grml_prompt_post_default[$it]}
zstyle -s ":prompt:${grmltheme}:${lr}:items:$it" token new \
|| new=${grml_prompt_token_default[$it]}
- typeset -g "${target}=${(P)target}${apre}"
if (( ${+grml_prompt_token_function[$it]} )); then
${grml_prompt_token_function[$it]} $it
- typeset -g "${target}=${(P)target}${REPLY}"
else
case $it in
battery)
- grml_typeset_and_wrap $target $new '' ''
+ grml_wrap_reply $target $new '' ''
;;
change-root)
- grml_typeset_and_wrap $target $new '(' ')'
+ grml_wrap_reply $target $new '(' ')'
;;
grml-chroot)
if [[ -n ${(P)new} ]]; then
- typeset -g "${target}=${(P)target}(CHROOT)"
+ REPLY="$CHROOT"
+ else
+ REPLY=''
fi
;;
vcs)
vcscalled=1
fi
if (( ${+parameters[$v]} )) && [[ -n "${(P)v}" ]]; then
- typeset -g "${target}=${(P)target}${(P)v}"
+ REPLY="${(P)v}"
+ else
+ REPLY=''
fi
;;
- *) typeset -g "${target}=${(P)target}${new}" ;;
+ *) REPLY="$new" ;;
esac
fi
- typeset -g "${target}=${(P)target}${apost}"
+ # Strip volatile characters per item. This is off by default. See the
+ # global stripping code a few lines below for details.
+ if [[ -o prompt_subst ]] && zstyle -t ":prompt:${grmltheme}:${lr}:items:$it" \
+ strip-sensitive-characters
+ then
+ REPLY="${REPLY//[$\`]/}"
+ fi
+ typeset -g "${target}=${(P)target}${apre}${REPLY}${apost}"
done
+
+ # Per default, strip volatile characters (in the prompt_subst case)
+ # globally. If the option is off, the style has no effect. For more
+ # control, this can be turned off and stripping can be configured on a
+ # per-item basis (see above).
+ if [[ -o prompt_subst ]] && zstyle -T ":prompt:${grmltheme}:${lr}:setup" \
+ strip-sensitive-characters
+ then
+ typeset -g "${target}=${${(P)target}//[$\`]/}"
+ fi
}
function prompt_grml_precmd () {
#a3# Execute \kbd{apt-cache policy}
alias acp='apt-cache policy'
if check_com -c apt ; then
- #a3# Execute \kbd{apt dist-upgrade}
- salias adg="apt dist-upgrade"
- #a3# Execute \kbd{apt upgrade}
- salias ag="apt upgrade"
- #a3# Execute \kbd{apt install}
- salias agi="apt install"
- #a3# Execute \kbd{apt-get update}
- salias au="apt update"
- else
- salias adg="apt-get dist-upgrade"
- salias ag="apt-get upgrade"
- salias agi="apt-get install"
- salias au="apt-get update"
- fi
+ #a3# Execute \kbd{apt dist-upgrade}
+ salias adg="apt dist-upgrade"
+ #a3# Execute \kbd{apt upgrade}
+ salias ag="apt upgrade"
+ #a3# Execute \kbd{apt install}
+ salias agi="apt install"
+ #a3# Execute \kbd{apt-get update}
+ salias au="apt update"
+ else
+ salias adg="apt-get dist-upgrade"
+ salias ag="apt-get upgrade"
+ salias agi="apt-get install"
+ salias au="apt-get update"
+ fi
#a3# Execute \kbd{aptitude install}
salias ati="aptitude install"
#a3# Execute \kbd{aptitude update ; aptitude safe-upgrade}
if (( GRMLSMALL_SPECIFIC > 0 )) && isgrmlsmall ; then
- unset abk[V]
+ unset "abk[V]"
unalias 'V' &> /dev/null
unfunction vman &> /dev/null
unfunction viless &> /dev/null