if [ -n "${CONTENT_LENGTH}" -a "${CONTENT_LENGTH}" -gt 0 ]; then
(head -c "${CONTENT_LENGTH}"; echo)|sed 's/&/\n/g' \
if [ -n "${CONTENT_LENGTH}" -a "${CONTENT_LENGTH}" -gt 0 ]; then
(head -c "${CONTENT_LENGTH}"; echo)|sed 's/&/\n/g' \
s:\+: :g;s:%:\\x:g;p}' \
|while line="$(line)"; do
eval "$(echo -e "$line" |sed -r 's:[\n\r'\'']::g;s:^([a-zA-Z0-9_+-]+)=(.*)$:\1='"'\2'"':;')"
s:\+: :g;s:%:\\x:g;p}' \
|while line="$(line)"; do
eval "$(echo -e "$line" |sed -r 's:[\n\r'\'']::g;s:^([a-zA-Z0-9_+-]+)=(.*)$:\1='"'\2'"':;')"