@node tcgetsid
@section @code{tcgetsid}
@findex tcgetsid

POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/tcgetsid.html}

Gnulib module: tcgetsid

Portability problems fixed by Gnulib:
@itemize
This function is missing on some platforms:
MacOS X 10.3, FreeBSD 6.0, OpenBSD 4.5, Cygwin, mingw, Interix 3.5, BeOS.
@end itemize

Portability problems not fixed by Gnulib:
@itemize
@item
This function always fails on some platforms:
FreeBSD 6.0, Cygwin, mingw, Interix 3.5, BeOS.
@end itemize
