tmux/regress/cmd-parse-errors.sh at command_parser · intertermux-code/tmux

Repository navigation

History

#!/bin/sh

# Malformed input rejection and crash/leak canary.

# Each input below is a syntax error. For every one we require that:

# - parsing reports failure (non-zero exit), and

# - the server is still alive afterwards (a follow-up command succeeds).

# The second check is the important one: a parser that crashes or corrupts state

# on bad input would take the server down here.

PATH=/bin:/usr/bin

TERM=screen

[ -z "$TEST_TMUX" ] && TEST_TMUX=$(readlink -f ../tmux)

TMUX="$TEST_TMUX -LtestA$$ -f/dev/null"

$TMUX kill-server 2>/dev/null

$TMUX -f/dev/null start \; new-session -d 2>/dev/null || exit 1

n=0

check() {

n=$((n + 1))

# Expect a parse failure.

if $TMUX run-shell -C "$1" >/dev/null 2>&1; then

echo "case $n: expected failure but succeeded: $1" >&2

exit 1

# Expect the server to still be responsive.

if ! $TMUX list-sessions >/dev/null 2>&1; then

echo "case $n: server died after: $1" >&2

exit 1

}

check 'if-shell true {' # unterminated brace body

check 'display-message a }' # stray close brace

check 'if-shell true { display-message a' # unclosed nested brace

check 'if-shell true { ; }' # empty sequence in body

check '%elif 1' # %elif with no %if

check '%endif' # %endif with no %if

check '%zzz' # unknown % directive

check '; display-message a' # leading separator

input='%if 1

display-message a'

check "$input" # unterminated %if

input='%if 1

%endif'

check "$input" # empty %if body

$TMUX kill-server 2>/dev/null

exit 0

FilesExpand file tree

cmd-parse-errors.sh

Latest commit

History

cmd-parse-errors.sh

File metadata and controls