@section @code{select}
@findex select
-POSIX specification: @url{http://www.opengroup.org/susv3xsh/select.html}
+POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/select.html}
-Gnulib module: ---
+Gnulib module: select
Portability problems fixed by Gnulib:
@itemize
+@item
+On Windows platforms (excluding Cygwin), @code{select} can only be
+called on descriptors created by the @code{socket} function, not on regular
+file descriptors.
+@item
+On Windows platforms (excluding Cygwin), error codes for @code{accept} are not
+placed in @code{errno}, and @code{WSAGetLastError} must be used instead.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
@item
-This function is missing on some platforms:
-mingw.
-@item
When you call @code{select} with a timeout, some implementations modify the
timeout parameter so that upon return from the function, it contains the
amount of time not slept. Other implementations leave the timeout parameter
unmodified.
@item
-On Windows platforms (excluding Cygwin) and on BeOS, @code{select} can only be
-called on descriptors created by the @code{socket} function, not on regular
-file descriptors.
+On BeOS, @code{select} can only be called on descriptors created by the
+@code{socket} function, not on regular file descriptors.
@item
On Linux, when some file descriptor refers to a regular file, @code{select}
may fail, setting @code{errno} to @code{EBADF}.