@node setsockopt @section @code{setsockopt} @findex setsockopt POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/setsockopt.html} Gnulib module: setsockopt Portability problems fixed by Gnulib: @itemize @item On Windows platforms (excluding Cygwin), error codes for @code{setsockopt} are not placed in @code{errno}, and @code{WSAGetLastError} must be used instead. @end itemize Portability problems not fixed by Gnulib: @itemize @item Many socket options are not available on all platforms. @end itemize