1@node getpeername 2@section @code{getpeername} 3@findex getpeername 4 5POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/getpeername.html} 6 7Gnulib module: getpeername 8 9Portability problems fixed by Gnulib: 10@itemize 11@item 12On Windows platforms (excluding Cygwin), error codes from this function 13are not placed in @code{errno}, and @code{WSAGetLastError} must be used 14instead. 15@item 16On HP-UX 11, in 64-bit mode, when the macro @code{_HPUX_ALT_XOPEN_SOCKET_API} 17is not defined, this function behaves incorrectly because it is declared 18to take a pointer to a 64-bit wide @code{socklen_t} entity but in fact 19considers it as a pointer to a 32-bit wide @code{unsigned int} entity. 20@end itemize 21 22Portability problems not fixed by Gnulib: 23@itemize 24@item 25Some platforms don't have a @code{socklen_t} type; in this case this function's 26third argument type is @samp{int *}. 27@end itemize 28