Fix stack buffer overflow#233
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The adjustment of parse_error introduced a possible stack buffer
overflow if lesskey filename is long enough.
How to reproduce:
KEYFILE=$(python -c 'print("/tmp/"+4*(255*"a"+"/")+"lesskey.txt")')
install -d $(dirname KEYFILE)
echo "#version a" > $KEYFILE
less --lesskey-src=$KEYFILE -f /dev/null
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The adjustment of parse_error introduced a possible stack buffer
overflow if lesskey filename is long enough.
How to reproduce:
KEYFILE=$(python -c 'print("/tmp/"+4*(255*"a"+"/")+"lesskey.txt")')
install -d $(dirname KEYFILE)
echo "#version a" > $KEYFILE
less --lesskey-src=$KEYFILE -f /dev/null