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@node gethostname
@section @code{gethostname}
@findex gethostname
POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/gethostname.html}
Gnulib module: gethostname
Portability problems fixed by Gnulib:
@itemize
@item
This function is declared in a different header file (namely,
@code{<winsock2.h>}) on some platforms:
MSVC 14.
@item
On mingw and MSVC 14, this function has a prototype that differs from that
specified by POSIX, and it is defined only in the ws2_32 library.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
@item
This function's second argument type is @code{int} instead of @code{size_t}
on some platforms:
Solaris 10.
@item
If the given buffer is too small for the host name, some implementations
fail with @code{EINVAL}, instead of returning a truncated host name.
@end itemize
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