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10.393 getaddrinfo

POSIX specification:
https://pubs.opengroup.org/onlinepubs/9699919799/functions/getaddrinfo.html

Gnulib module: getaddrinfo

Portability problems fixed by Gnulib:

• This function is missing on some platforms: HP-UX 11.11, Cygwin 1.5.x, mingw, MSVC 14.
• On Windows, this function is declared in <ws2tcpip.h> rather than in <netdb.h>.
• On Windows, in 32-bit mode, this function is defined with a calling convention that is different from cdecl.

Portability problems not fixed by Gnulib:

• Unlike glibc’s implementation, gnulib’s replacement does not support internationalized domain names (IDN) encoding.