Man pages matching name getprotoent in section 3:

getprotoent.3.en	debian 10 / manpages-dev
getprotoent.3.es	debian 10 / manpages-es
getprotoent.3.ja	debian 10 / manpages-ja-dev
getprotoent.3.pl	debian 10 / manpages-pl-dev
getprotoent.3.en	debian 11 / manpages-dev
getprotoent.3.fr	debian 11 / manpages-fr-dev
getprotoent.3.ja	debian 11 / manpages-ja-dev
getprotoent.3.pl	debian 11 / manpages-pl-dev
getprotoent.3.en	debian 12 / manpages-dev
getprotoent.3.es	debian 12 / manpages-es-dev
getprotoent.3.ja	debian 12 / manpages-ja-dev
getprotoent.3.pl	debian 12 / manpages-pl-dev
getprotoent.3.cs	debian 13 / manpages-cs-dev
getprotoent.3.en	debian 13 / manpages-dev
getprotoent.3.es	debian 13 / manpages-es-dev
getprotoent.3.fr	debian 13 / manpages-fr-dev
getprotoent.3.ja	debian 13 / manpages-ja-dev
getprotoent.3.pl	debian 13 / manpages-pl-dev
getprotoent.3.ro	debian 13 / manpages-ro-dev
getprotoent.3.ru	debian 13 / manpages-ru-dev