Man pages matching name fopencookie in section 3:

fopencookie.3.en	debian 10 / manpages-dev
fopencookie.3.ja	debian 10 / manpages-ja-dev
fopencookie.3.en	debian 11 / manpages-dev
fopencookie.3.fr	debian 11 / manpages-fr-dev
fopencookie.3.ja	debian 11 / manpages-ja-dev
fopencookie.3.en	debian 12 / manpages-dev
fopencookie.3.fr	debian 12 / manpages-fr-dev
fopencookie.3.ja	debian 12 / manpages-ja-dev